| Document | Document Title |
|---|---|
| US11252450B2 |
Video classification using user behavior from a network digital video recorder
Particular embodiments provide a system to determine ad segments in a video asset to enable subsequent ad replacement in video programs. The system is included in a multiple service operator (MSO) system that broadcasts video programs via a broadcast schedule. The MSO may not know the location of the ad segments in the video asset. To determine the ad segments, the MSO uses a classifier to classify video program segments and advertisements in the video asset. The classifier may be integrated with an nDVR system. By integrating with the nDVR system, particular embodiments may determine user behavior information, such as trick play commands, from the nDVR system. The classifier may use the user behavior information to detect ad segments in the video asset. In one embodiment, the classifier may fuse outputs from different detectors to detect and validate ad segments in the video program. |
| US11252445B1 |
Systems and methods for providing passthrough adaptive bitrate videos
Systems, methods, and non-transitory computer-readable media can receive a video uploaded by a user. A determination is made as to whether the video satisfies passthrough eligibility criteria. An ABR video package associated with the video is generated based on the determining whether the video satisfies the passthrough eligibility criteria. |
| US11252441B2 |
Hierarchical point cloud compression
A system comprises an encoder configured to compress attribute information for a point cloud and/or a decoder configured to decompress compressed attribute information for the point cloud. To compress the attribute information, multiple levels of detail are generated based on an ordering of the points according to a space filling curve and attribute values are predicted. The attribute values may be predicted simultaneously while points are being assigned to different levels of detail. A decoder follows a similar prediction process based on level of details. Also, attribute correction values may be determined to correct predicted attribute values and may be used by a decoder to decompress a point cloud compressed using level of detail attribute compression. In some embodiments, attribute correction values may take into account an influence factor of respective points in a given level of detail on attributes in other levels of detail. |
| US11252440B2 |
Pixel filtering for content
Systems, apparatuses, and methods are described for filtering and/or removing defects from content, such as high dynamic range (HDR) content. A plurality of parameters for filtering one or more pixels may be determined. The parameter(s) may be used to determine one or more filter weights, and the filter weight(s) may be applied to one or more pixels and one or more corresponding prior pixels to generate one or more filtered pixels. The filtered content and/or pixels thereof may later be encoded for storage and/or transmission to users. |
| US11252434B2 |
Method for wrap-around padding for omnidirectional media coding
Reconstructing a coded current picture for video decoding including decoding picture partitioning information corresponding to the current picture; determining whether padding is applied to sub-regions of the current picture using the picture partitioning information; based on determining that padding is not applied, decoding the sub-regions without padding the sub-regions; based on determining that padding is applied, determining whether the padding includes wrap-around padding using the picture partitioning information; based on determining that the padding does not include wrap-around padding, applying repetition padding to the sub-regions, and decoding the sub-regions using the repetition padding; based on determining that the padding includes wrap-around padding, applying the wrap-around padding to the sub-regions, and decoding the sub-regions using the wrap-around padding; and reconstructing the current picture based on the decoded sub-regions. |
| US11252433B2 |
Signaling of global motion vector in picture header
A decoder includes circuitry configured to receive a bitstream, extract a header, determine, using the header, a global motion model, and decode a current block of a current frame using the global motion model. Related apparatus, systems, techniques and articles are also described. |
| US11252432B2 |
Image processing method based on inter prediction mode, and device therefor
In the present disclosure, a method of decoding a video signal and a device therefor are disclosed. Specifically, a method of decoding an image based on an inter prediction mode includes deriving a motion vector of an available spatial neighboring block around a current block; deriving a collocated block of the current block based on the motion vector of the spatial neighboring block; deriving a motion vector in a sub-block unit in the current block based on a motion vector of the collocated block; and generating a prediction block of the current block using the motion vector derived in the sub-block unit, wherein the collocated block may be specified by the motion vector of the spatial neighboring block in one pre-defined reference picture. |
| US11252431B2 |
Side motion refinement in video encoding/decoding systems
A method for decoding a current block in a current picture of a video bitstream includes decoding, from the video bitstream, a first motion vector for the current block relative to a first reference block of a first reference picture having a first picture order count, and decoding, from the video bitstream, a second motion vector for the current block relative to a second reference block of a second reference picture having a second picture order count. A similarity metric is generated based on a comparison of the first motion vector and the second motion vector. The method further includes determining whether to refine the first motion vector based on the similarity metric, generating a first refined motion vector from the first motion vector, and performing motion compensation to derive a first reference block from the first reference picture using the first refined motion vector. |
| US11252430B2 |
Exploiting camera depth information for video encoding
The present disclosure is directed a system and method for exploiting camera and depth information associated with rendered video frames, such as those rendered by a server operating as part of a cloud gaming service, to more efficiently encode the rendered video frames for transmission over a network. The method and system of the present disclosure can be used in a server operating in a cloud gaming service to improve, for example, the amount of latency, downstream bandwidth, and/or computational processing power associated with playing a video game over its service. The method and system of the present disclosure can be further used in other applications where camera and depth information of a rendered or captured video frame is available. |
| US11252426B2 |
Spatially varying transform with adaptive transform type
A video decoding method and apparatus employing spatially varying transform (SVT) with adaptive transform type include determining a usage of an SVT-vertical (V) or an SVT-horizontal (H) for a residual block, determining a transform block position of a transform block of the residual block, determining a transform type of the transform block, wherein the transform type indicates a horizontal transform and a vertical transform for the transform block, wherein at least one of the horizontal transform or the vertical transform is a discrete sine transform (DST)-7, and reconstructing the residual block based on the transform type, the transform block position and transform coefficients of the transform block. |
| US11252422B2 |
Network device and error handling
A number of negatively affected (correctly received) packets due to packet loss is reduced by providing, and analyzing, error resilience in the packets of the sequence of packets and identifying, for each of runs of one or more lost packets of the sequence of packets, a first packet in the sequence of packets after the respective run of one or more lost packets, which carries a beginning of any of the tiles of the video data stream, and concurrently carries a slice, the slice header of which is contained in any of the packets of the sequence of packets not being lost. In particular, the side information overhead for transmitting the error resilience data is comparatively low compared to the reduction in negatively affected packets due to packet loss. |
| US11252420B2 |
Image coding method on basis of secondary transform and device therefor
An image information decoding method performed by means of a decoding device according to the present invention comprises the steps of: decoding a non-separable secondary transform (NSST) index from a bitstream if NSST is applied to a target block; decoding information relating to transform coefficients with respect to the target block from the bitstream on the basis of the decoded NSST index; and deriving the transform coefficients with respect to the target block on the basis of the decoded information relating to the transform coefficients, wherein the NSST index is decoded prior to the information relating to the transform coefficients with respect to the target block. |
| US11252418B2 |
Multi-stage block coding
A multi-stage coding method includes receiving an input block of data for encoding and one or more previously coded samples associated with the input block. The input block is segmented into at least a first sub-region and a second sub-region. A prediction for the first sub-region is generated based on the one or more previously coded samples. Residual data for the first sub-region is obtained using the prediction for the first sub-region. A reconstruction of the first sub-region is generated using the residual data for the first sub-region and the prediction for the first sub-region. A prediction for the second sub-region is generated using the reconstruction of the first sub-region. Residual data for the second sub-region is obtained using the prediction for the second sub-region. The input block is encoded based in part on the residual data for the first region and the residual data for the second region. |
| US11252416B2 |
Method and device of compression image with block-wise bit rate control
A method for compressing an image with bit rate control includes: compressing data of a current block with a compression level to produce compression data of the current block; in response to compression of the current block, accumulating a data size of compressed data of blocks that have been compressed to obtain an accumulated real size; in response to the compression of the current block, accumulating a target block size according to a number of blocks that have been compressed to obtain an accumulated target size; and adjusting the compression level for a next block according to at least the accumulated real size and the accumulated target size. |
| US11252415B2 |
DMVR-based inter-prediction method and device
An image decoding method performed by a decoding device according to the present document comprises the steps of: deriving a motion vector for a current block; determining whether to apply refinement to the motion vector for the current block; deriving a refined motion vector by applying decoder-side motion vector refinement (DMVR) to the motion vector if it is determined to apply refinement to the motion vector for the current block; deriving prediction samples for the current block on the basis of the refined motion vector; and generating reconstruction samples for the current block on the basis of the prediction samples, wherein the step of determining whether to apply refinement includes determining whether to apply the refinement on the basis of at least one of the size of the current block and bi-prediction weight index information for the current block. |
| US11252414B2 |
Apparatuses and methods for improved encoding of images for better handling by displays
This invention provides a process which allows better quality rendering of video on any display. The process proposes encoding, video data and additional data. The additional data includes a change time instant. The change time instant can be used to indicate a change in time of a characteristic luminance. The characteristic luminance summarizes the set of luminances of pixels in an image of the video data. The process includes generating on descriptive data based on the video data and encoding and outputting the descriptive data as additional data. |
| US11252413B2 |
Polynomial fitting for motion compensation and luminance reconstruction in texture synthesis
The present disclosure relates to encoding a decoding video employing texture coding. In particular, a texture region is identified within a video picture and a texture patch is determined for said region. Moreover, a set of parameters specifies luminance within the texture region (1001) by fitting the texture region samples to a two-dimensional polynomial function of the patch determined according to the set of parameters (1040); and/or motion within the texture region by fitting motion estimated between the texture region of the video picture and an adjacent picture to a two-dimensional polynomial The texture patch and the first set of parameters are then included into a bitstream which is output of the encoder and provided in this way to the decoder which reconstructs the texture based on the patch and the function applied to the patch. |
| US11252411B2 |
Method for encoding and decoding quantized matrix and apparatus using same
The present invention relates to a method for encoding and decoding a quantized matrix and an apparatus using same, the method for encoding a quantized matrix according to the present invention comprising the steps of: determining a quantization matrix to be used for quantization and quantizing; determining the prediction method used for the quantization of the quantization matrix; and encoding quantization matrix information on the basis of the determined prediction method, wherein the prediction method can be either a prediction method between coefficients in the quantization matrix or a duplicate of the quantization matrix. |
| US11252410B2 |
Method and apparatus for video coding
In a method of video decoding at a video decoder, a first high level syntax (HLS) element and a second HLS element can be received. The first HLS element can indicate whether an explicit multiple transform selection (MTS) is enabled or disabled for an intra coded block. The second HLS element can indicate whether the explicit MTS is enabled or disabled for an inter coded block. The first and second HLS elements can control a same set of coding blocks that include the intra coded block and the inter coded block. An implicit MTS can be enabled for the intra coded block when the first HLS element indicates the explicit MTS is disabled for the intra coded block, and the second HLS element indicates the explicit MTS is enabled for the inter coded block. |
| US11252409B2 |
Tile and sub-picture partitioning
Systems and methods for decoding are provided, a method is performed by at least one processor to decode a sub-bitstream of a coded video stream, the coded video stream including a coded version of a first sub-picture and a second sub-picture of a picture, the method including decoding the first sub-picture of the picture, independently from the second sub-picture, using sub-picture and tile partitioning, wherein (i) the first sub-picture comprises a first rectangular region of the picture and the second sub-picture comprises a second rectangular region of the picture, the second rectangular region being different from the first rectangular region, (ii) the first sub-picture and the second sub-picture each include at least one tile, and (iii) the first sub-picture and the second sub-picture do not share a common tile. |
| US11252408B2 |
Image processing apparatus and data receiving apparatus, and methods thereof
An image processing apparatus includes a storage unit, a selection unit, and an encoding unit. The storage unit stores pre-synchronized image data. The selection unit selects as a reference image at least one of the pre-synchronized image data based on a result of comparison between the pre-synchronized image data and an original image data. The encoding unit generates a compressed image data by compressing the original image data using the reference image. The selection unit calculates similarity between the original image data and at least one of the pre-synchronized image data and selects the reference image among the synchronized image data based on the calculated similarity. |
| US11252407B2 |
Method and apparatus for encoding/decoding intra prediction mode
An image decoding method, according to the present invention, includes the steps of: deriving an MPM candidate mode from neighboring blocks adjacent to a target block to be decoded; generating an MPM list using the MPM candidate mode derived from the neighboring blocks; and deriving an intra prediction mode for the target block to be decoded using the generated MPM list. According to the present invention, image compression efficiency can be improved. |
| US11252405B2 |
Image signal encoding/decoding method and apparatus therefor
An image decoding method according to the present disclosure may include the steps of: determining whether a combined prediction mode is applied to a current block; when the combined prediction mode is applied to the current block, obtaining first and second prediction blocks with respect to the current block; and, on the basis of a calculation of a weighted sum of the first and second prediction blocks, obtaining a third prediction block with respect to the current block. |
| US11252401B2 |
Optically communicating display metadata
In some embodiments, a display device is disclosed to optically communicating display parameters. The device receives input image data. Embedded in the input image data is a code value identifying a request for a portion of a display parameter of the display device. The device decodes the embedded code value. The device generates an optical image based on the request and transmits the generated optical image to an output of the display device to communicate the requested portion of the requested display parameter. |
| US11252397B2 |
File generation apparatus and file generation method as well as reproduction apparatus and reproduction method
There is provided a file generation apparatus and a file generation method as well as a reproduction apparatus and a reproduction method by which a file for efficiently storing quality information of a depth-related image at least including a depth image can be generated. A segment file generation unit generates a file in which quality information representative of quality of a depth-related image including at least a depth image is disposed in a form divided for each kind. The present disclosure can be applied to a file generation apparatus of an information processing system or the like by which a segment file and an MPD file of a video content are distributed, for example, in a method that complies with MPEG-DASH. |
| US11252395B2 |
Targets, fixtures, and workflows for calibrating an endoscopic camera
A calibration target comprises a target pattern plane having a planar surface and a plurality of markers disposed on the planar surface. An optical axis of the imaging system is at a first angle with respect to the planar surface of the target pattern plane when the calibration target is being used to calibrate the imaging system. The plurality of markers is pre-warped in size and aspect ratio using a set of trigonometric functions that use the first angle and a distance from the imaging system to the marker, so that each of the plurality of markers appears a substantially same size as all others of the plurality of markers when viewed by the imaging system at the first angle. The plurality of markers includes a plurality of localizer features that have known relative positions on the target pattern plane and are used to determine an orientation for each marker. |
| US11252392B2 |
Layered scene decomposition CODEC with layered depth imaging
A system and methods for a CODEC driving a real-time light field display for multi-dimensional video streaming, interactive gaming and other light field display applications is provided applying a layered scene decomposition strategy. Multi-dimensional scene data is divided into a plurality of data layers of increasing depths as the distance between a given layer and the display surface increases. Data layers are sampled using a plenoptic sampling scheme and rendered using hybrid rendering, such as perspective and oblique rendering, to encode light fields corresponding to each data layer. The resulting compressed, (layered) core representation of the multi-dimensional scene data is produced at predictable rates, reconstructed and merged at the light field display in real-time by applying view synthesis protocols, including edge adaptive interpolation, to reconstruct pixel arrays in stages (e.g. columns then rows) from reference elemental images. |
| US11252390B2 |
Method and apparatus for encoding or decoding 360 degree image
Provided are a method and apparatus for encoding or decoding a 360-degree image. An image decoding method and apparatus according to an embodiment include: obtaining image data from a bitstream; decoding a first region of a projection image corresponding to a non-clipping region of a 360-degree image from the image data; obtaining information about a clipping region of the 360-degree image from the bitstream; determining a second region of the projection image, based on the information about the clipping region; and converting the projection image including the first region and the second region into the 360-degree image. |
| US11252389B2 |
Electronic apparatus for correcting color temperature of captured image using reference color information corresponding to external object, and method for controlling electronic apparatus
Disclosed is an electronic apparatus comprising: a camera module; a communication module; and a processor electrically connected to the camera module and the communication module, wherein the processor is capable of: obtaining an image of one or more external objects by using the camera module; recognizing at least one specified external object among the one or more external objects; transmitting image color information, corresponding to said at least one recognized specified external object, to an external electronic apparatus via the communication module; receiving attribute information on a light source for the image, determined using reference color information, corresponding to said at least one specified external object, and the image color information, from the external electronic apparatus; and correcting the color temperature of the image by using the attribute information received from the external electronic apparatus. Other various embodiments identified in the description are possible. |
| US11252388B2 |
Method and device for processing an image signal of an image sensor for a vehicle
A method includes obtaining, from an image sensor of a vehicle, an image signal that represents a vector of a plurality of input measured color values; determining weighting values as a function of the input measured values using a determination rule; ascertaining model matrices from a plurality of stored model matrices as a function of the weighting values, each of the model matrices generated for possible input measured values using a training rule; generating a color reconstruction matrix using the ascertained model matrices and at least one of the determined weighting values according to a generating rule; and applying the generated color reconstruction matrix to the measured color value vector in order to produce an output color vector that represents a processed image signal. |
| US11252387B2 |
Projection apparatus, projection method and storage medium
There is provided a projection apparatus which includes a projection unit configured to project an image, an acquisition device configured to acquire a distance between an apparatus main body and a projection target, a ranging device including a ranging axis which is substantially parallel to a projection optical axis of the projection unit, and a controller configured to control a projection operation, based on a result of ranging of the ranging device with reference to the distance acquired by the acquisition device. |
| US11252385B2 |
Scanning laser projection display for small handheld devices
Image projection devices, high-speed fiber scanned displays and related methods for projecting an image onto a surface and interfacing with the projected image are provided. A method for projecting one or more images and obtaining feedback with an optical input-output assembly is provided. The input-output assembly comprising a light-scanning optical fiber and a sensor. The method includes generating a sequence of light in response to one or more image representations and a scan pattern of the optical fiber, articulating the optical fiber in the scan pattern, projecting the sequence of light from the articulated optical fiber, and generating a feedback signal with the sensor in response to reflections of the sequence of light. |
| US11252382B1 |
3 MOS camera
A 3 MOS camera includes a first prism that causes a first image sensor to receive IR light of light from an observation part, a second prism that causes a second image sensor to receive visible light of A % (A: a predetermined real number) of the light from the observation part, a third prism that causes a third image sensor to receive remaining visible light of (100−A) % of the light from the observation part, and a video signal processor that combines a color video signal based on imaging outputs of the second image sensor and the third image sensor and an IR video signal based on an imaging output of the first image sensor and outputs the combined signal to a monitor, the second image sensor and the third image sensor being respectively bonded to positions optically shifted by substantially one pixel. |
| US11252376B2 |
Vehicular vision system with electronic control unit
A vehicular vision system includes an electronic control unit having at least four coaxial connectors. At least four coaxial cables are electrically connected at respective coaxial connectors of the electronic control unit and respective cameras of at least four cameras. Each of the coaxial cables carries DC power from the electronic control unit to the respective camera. Each of the coaxial cables carries respective control data from the electronic control unit to the respective camera. Each of the coaxial cables carries image data captured by an imager of the respective camera to the electronic control unit via low-voltage differential signaling. Image data carried to the electronic control unit is processed at the electronic control unit by a processor of the electronic control unit. |
| US11252375B2 |
Electronic apparatus and control method thereof
An electronic apparatus including: a display; a signal receiver including circuitry configured to receive a broadcast signal; a processor configured to control the electronic apparatus to: obtain first information about a broadcasting schedule corresponding to a plurality of channels provided through the broadcast signal, determine a recommendation level of a program corresponding to a time unit section having a predetermined time length with regard to a plurality of programs of the plurality of channels based on the obtained first information, obtain second information about a broadcasting schedule of the programs selected based on the determined recommendation level among the plurality of programs, and process the broadcasting schedule of the selected programs to be displayed on the display based on the obtained second information. |
| US11252374B1 |
Altering undesirable communication data for communication sessions
This disclosure describes techniques implemented partly by a communications service for identifying and altering undesirable portions of communication data, such as audio data and video data, from a communication session between computing devices. For example, the communications service may monitor the communications session to alter or remove undesirable audio data, such as a dog barking, a doorbell ringing, etc., and/or video data, such as rude gestures, inappropriate facial expressions, etc. The communications service may stream the communication data for the communication session partly through managed servers and analyze the communication data to detect undesirable portions. The communications service may alter or remove the portions of communication data received from a first user device, such as by filtering, refraining from transmitting, or modifying the undesirable portions. The communications service may send the modified communication data to a second user device engaged in the communication session after removing the undesirable portions. |
| US11252370B2 |
Synergistic temporal anti-aliasing and coarse pixel shading technology
Systems, apparatuses and methods may provide for technology that determines a frame rate of video content, sets a blend amount parameter based on the frame rate, and temporally anti-aliases the video content based on the blend amount parameter. Additionally, the technology may detect a coarse pixel (CP) shading condition with respect to one or more frames in the video content and select, in response to the CP shading condition, a per frame jitter pattern that jitters across pixels, wherein the video content is temporally anti-aliased based on the per frame jitter pattern. The CP shading condition may also cause the technology to apply a gradient to a plurality of color planes on a per color plane basis and discard pixel level samples associated with a CP if all mip data corresponding to the CP is transparent or shadowed out. |
| US11252367B2 |
Solid-stage image sensor, imaging device, and method of controlling solid-state image sensor
To increase a readout speed of a pixel signal in a non-differential mode in a solid-state image sensor that performs differential amplification in a differential mode and does not perform differential amplification in the non-differential mode. A connection control unit sequentially performs control of connecting a first pixel connected to a first signal line to a reset power supply via a third signal line and control of connecting a second pixel connected to a second signal line to the reset power supply via a fourth signal line in a differential mode, and performs control of connecting a third pixel to the third signal line and control of connecting the fourth pixel to the fourth signal line in a non-differential mode. Furthermore, a drive unit outputs a signal obtained by amplifying a difference between respective pixel signals of the first and second pixels via one of the first and second signal lines in the differential mode, and outputs respective pixel signals of the first, second, third, and fourth pixels via the first, second, third, and fourth signal lines in the non-differential mode. |
| US11252365B2 |
Clock generator and image sensor including the same
A clock generator and an image sensor including the same are disclosed, which relate to technology for improving an operation speed of a voltage controlled oscillator. The clock generator includes a phase frequency detector (PFD) configured to detect a phase difference between a clock signal and a reference clock signal, a voltage converter configured to adjust a current corresponding to a voltage level in response to an output signal of the phase frequency detector (PFD), a filter circuit configured to generate a control voltage by filtering an output signal of the voltage converter, a voltage pumping circuit configured to pump an output voltage of the voltage converter, and provide the control voltage having a pumped voltage level, and a voltage controlled oscillator configured to generate a clock signal, an oscillation frequency of which is adjusted, in response to the control voltage. |
| US11252359B1 |
Image compensation for sensor array having bad pixels
Methods and apparatus for compensating for bad pixels in a sensor array. In embodiments, a detector system receives an image on a sensor array of pixels for a first frame via a lens when the lens and the sensor array are configured in a first positional relationship. The array includes at least one bad pixel. The system moves the lens and/or the sensor array based on a position of the at least one bad pixel in the image such that the lens and the sensor array are configured in a second positional relationship. The image on the sensor array for a second frame is received via the lens when the lens and the sensor array are configured in a second positional relationship. The system compensates for the location of the at least one bad pixel in the image for the first and second frames to output a processed image. |
| US11252355B2 |
Image pickup device and electronic device
The present technology relates to an image pickup device and an electronic device that enables a reduction in influence exerted by a dark current. The image pickup device and the electronic device include a sample and hold unit configured to perform sampling and holding of a pixel signal, an analog digital (AD) conversion unit configured to perform AD conversion of the pixel signal that includes a digit after a decimal point, a digital gain processing unit configured to apply a predetermined gain to a digital signal from the AD conversion unit, and a gain setting unit configured to set an analog gain of a column unit including the sample and hold unit and the AD conversion unit. The gain setting unit sets the analog gain in accordance with a measured dark current amount. The present technology can be applied, for example, to a CMOS image sensor. |
| US11252353B2 |
Ultra-low noise amplifier adapted for CMOS imaging sensors
A low-noise amplifier is disclosed. The amplifier includes a signal amplifier having an amplifier signal output, a first filter capacitor, a buffer amplifier having a buffer amplifier input and a buffer amplifier output; and a switching network. The first filter capacitor has first and second terminals. The second terminal is connected to a power rail. The amplifier signal output is connected to the buffer amplifier input by a first direct current path and the buffer amplifier output to the first terminal of the first filter capacitor by a second direct current path during a first time period. The amplifier signal output is connected directly to the first terminal of the first filter capacitor by a third direct current path during a second time period, and the amplifier signal output to the first terminal of the first filter capacitor through a resistor during a third time period. |
| US11252349B2 |
Radiation detection apparatus, control method of the same, and radiation imaging system
A radiation detection apparatus includes a pixel array including pixels each including a conversion element and a switch element, an acquisition unit configured to acquire a first signal generated in the pixel array while at least one switch element of the pixels is in a conductive state, and a second signal generated in the pixel array while the switch elements are in a non-conductive state, an evaluation value determination unit configured to determine, based on the first signal, an evaluation value having a correlation with a radiation dose, a threshold value determination unit configured to determine a threshold value based not on the evaluation value but on the second signal, and a determination unit configured to determine, based on comparison between the evaluation value and the threshold value, whether the pixel array is being irradiated with radiation. |
| US11252346B1 |
Switching techniques for fast voltage settling in image sensors
Switching techniques for fast voltage settling in image sensors are described. In one embodiment, a transfer gate (TX) driver circuit of an image sensor includes a TX driver configured to provide a TX driver voltage to a plurality of pixels of an image sensor. A power supply (NVDD) is operationally coupled to the TX driver. A first switch (SW1) operationally coupling an outside capacitance (Cext) and the TX driver. A second switch (SW2) operationally coupling the Cext and the NVDD. A third switch (SW3) operationally coupling the NVDD and the TX driver. A falling edge of the TX driver voltage is configured to control a start of data transfer from individual pixels of the plurality of pixels. The SW1 and the SW2 are configured in an open position before the falling edge of the TX driver voltage. The SW3 is configured in a closed position before the falling edge. |
| US11252344B2 |
Method and system for generating multiple synchronized thermal video streams for automotive safety and driving systems
A system and method for image stream synchronization for an FIR camera. The method includes applying an initial correction to a received image stream; splitting the corrected image stream into a first image stream and at least a second image stream; enhancing the first image stream by at least one image enhancing process; buffering the second image stream until a synchronization signal is received; and synchronizing the first image stream and second image stream, such that the output of the enhanced first image stream and the buffered second image stream match. |
| US11252343B2 |
Optical imaging through display
An image pixel array captures and infrared image of an interference between an imaging signal and a reference wavefront. A display pixel array generates an infrared holographic imaging signal and the image pixel array receives the infrared imaging signal through the display pixel array. |
| US11252337B1 |
Method and apparatus of performing automatic exposure control for image sensor with context switching
A method for controlling an image capturing device that is operated according to a startup signal includes: configuring an image sensor array of the image capturing device by a first context to output a high-resolution image with a relatively long exposure time to a post-device; switching the first context to a second context based on the high-resolution image and a wide convergence zone; configuring the image sensor array by the second context to output one or more low-resolution images with relatively short exposure times in order to update an exposure value based on the low-resolution images; and updating the exposure value based on a narrow convergence zone to configure the image sensor array. |
| US11252336B2 |
Electronic device obtaining skin image and method of controlling the same
Disclosed are an electronic device obtaining skin images and a method of controlling the same. According to an embodiment, an electronic device comprises at least one camera, at least one light source, and at least one processor configured to control the at least one camera to capture a user image, identify a brightness of a facial skin image from the user image, determine at least one of a capture control parameter of the at least one camera and an output control parameter of the at least one light source, based on the identified brightness, and control the at least one camera to recapture the user image according to the at least one of the determined capture control parameter and the determined output control parameter of the light source. |
| US11252334B2 |
Electronic device
An electronic device according to the present invention controls so that in a case where a first screen is displayed, a first function is executed in response to a first type of operation in which touch is performed again at one location within a first time from touch at one location, and in a case where a second screen is displayed, a second function is executed in response to a second type of operation in which touch is performed at one location, without waiting for the first time to elapse, and a third function is executed in response to a third type of operation in which touch is performed again at two locations within a predetermined time from touch at two locations. |
| US11252333B2 |
Production shot design system
The described technology is directed towards a production shot design system that facilitates previsualizing scene shots, including by members of a production crew (running client devices) in different locations in a collaborative and secure shot construction environment. Modifiable scene elements' properties and camera data can be manipulated to build a scene (shot) containing modifiable and non-modifiable scene elements. In an online, shared camera mode, changes to a scene can be communicated to other client devices, e.g., virtually immediately, so that each client device displays the change for other users to see at an interactive frame rate. Scene changes can also be made locally and/or in an offline mode before communicating to other users. In various aspects, animation and a video plane camera/video plane (e.g., greenscreen) are integrated into the production shot design system. |
| US11252331B2 |
Optical system
A photosensitive element driving mechanism includes a fixed assembly, a first movable assembly, a photosensitive element and a first driving assembly. The first movable assembly includes a circuit member, and the circuit member includes a circuit member body and a movable cantilever. The photosensitive element is configured to receive light along an optical axis. The photosensitive element is disposed on and is electrically connected to the circuit member. The first driving assembly is configured to drive the first movable assembly to move relative to the fixed assembly. The movable cantilever has a first segment extending in a direction different from the optical axis, the first segment is electrically connected to the photosensitive element and the fixed assembly, and the first movable assembly moves relative to the fixed assembly through the movable cantilever. There is a gap between the first movable assembly and the fixed assembly. |
| US11252329B1 |
Automated determination of image acquisition locations in building interiors using multiple data capture devices
Techniques are described for using multiple devices to automatically determine the acquisition location of an image from a camera device, such as within a building interior and by using data from the multiple devices (e.g., visual data from the camera device's image, and additional data captured by a separate mobile computing device in the same area as the camera device), and for subsequently using determined image acquisition location information in one or more further automated manners. The image may be a panorama image or of another type, and the determined acquisition location for such an image may be at least a location on the building's floor plan—in addition, the automated image acquisition location determination may be further performed without having or using information from any depth sensors or other distance-measuring devices about distances from an image's acquisition location to walls or other objects in the surrounding building. |
| US11252326B2 |
Pulsed illumination in a laser mapping imaging system
Pulsed laser mapping imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises a laser mapping pattern. |
| US11252323B2 |
Facilitation of visual tracking
A visual tracker can be configured to obtain profile data associated with a pose of a living entity. In response to detecting a person, a camera can be selected from cameras. Additionally, in response to selecting the camera, the system can receive video data from the camera representative of a stance of the person. Consequently, the stance of the person can be estimated, resulting in an estimated stance. |
| US11252322B2 |
Electronic device capable of performing control in accordance with a movement operation of an operating body and control method thereof
An electronic device according to the present invention, includes at least one memory and at least one processor which function as: a detecting unit configured to detect a movement operation involving a movement of an operating body; and a control unit configured to perform control such that in a first case where a number of candidates as a selected position for a predetermined function is a first number, the selected position for the predetermined function is moved in accordance with an operation amount of the movement operation exceeding a first threshold, and in a second case where the number of candidates as the selected position for the predetermined function is a second number, the selected position for the predetermined function is moved in accordance with the movement operation even when the operation amount of the movement operation does not exceed the first threshold. |
| US11252313B1 |
Camera with improved mechanical stability
Described herein is a sensor device. The sensor device includes a housing with a front plate and a back plate. The front plate includes mounting holes and the back plate includes second mounting holes and alignment holes. The sensor device includes a printed circuit board encased by the housing, wherein the printed circuit board comprises an image sensor, an image sensor processor, and a serializer. |
| US11252309B1 |
Monitoring device
A monitoring device is disclosed, including: a base; a first rotary mechanism which is connected to the base and rotatable relative to the base; a supporting bracket fixed to the first rotary mechanism; a second rotary mechanism which is connected to the supporting bracket and rotatable relative to the supporting bracket; a lens assembly fixed to the second rotary mechanism; and a housing fixed to the supporting bracket and having an opening to expose the lens assembly; the first rotary mechanism, the supporting bracket, and the second rotary mechanism are located in the housing, a rotation axis of the first rotary mechanism is perpendicular to the base and a rotation axis of the second rotary mechanism. The monitoring device can implement omnidirectional imaging while maintaining an overall appearance of the entire device. |
| US11252304B2 |
Skin color image gamut weight detecting method and device thereof
A skin color image gamut weight detecting method and a device thereof are provided. The method includes: receiving an image including first color components and second color components; obtaining a skin color region, a skin color category, and a first gamut; obtaining first color component values and first cardinal numbers according to the first color components; obtaining second color component values and a plurality of second cardinal numbers according to the second color components; obtaining a second gamut and a weight center according to the skin color category, the first cardinal numbers, the second cardinal numbers, the first color component values, and the second color component values; obtaining a first weight area and a second weight area according to the first gamut and the second gamut; and obtaining a skin color gamut weight map according to the weight center, the first weight area, and the second weight area. |
| US11252303B2 |
Recording medium storing program or program group for executing scan processing on scanner and information processing apparatus configured to communicate with scanner for executing scan processing on scanner
A non-transitory computer-readable recording medium stores computer-readable instructions, when executed by a processor of an information processing apparatus, causing the information processing apparatus to perform: receiving a parameter from a first other program different from the program; in response to receiving the parameter from the first other program, transmitting a scan execution command including the received parameter to a scanner through a communication interface of the information processing apparatus, the parameter being indicative of a setting value that is set for executing scan processing on the scanner; receiving mode selection information from a second other program different from the program and from the first other program; and in response to receiving the mode selection information from the second other program, converting the received mode selection information into a parameter, and transmitting a scan execution command including the converted parameter to the scanner through the communication interface. |
| US11252302B2 |
Image processing device, image forming apparatus, image processing method, and non-transitory computer-readable storage medium
An image processing device includes: an image classifying section which, through a convolutional neural network, classifies each pixel of input image data as expressing or not expressing a handwritten image to calculate a classification probability of each pixel, the classification probability being a probability that the handwritten image is expressed; a threshold setting section which sets a first threshold when removal processing to remove the handwritten image is performed and a second threshold which is smaller than the first threshold when emphasis processing to emphasize the handwritten image is performed; and an image processor which adjusts a gradation value of pixels with a classification probability no smaller than the first threshold to remove the handwritten image when the removal processing is performed and adjusts the gradation value of pixels with a classification probability no smaller than the second threshold to emphasize the handwritten image when the emphasis processing is performed. |
| US11252298B2 |
Image processing apparatus, control method thereof, and storage medium
The occurrence of image quality adverse effects, such as interference fringes and color bleeding, is suppressed for an object including a spot color adjustment-target color. In a case where a spot color adjustment function is made use of, the same color separation table is caused to be applied uniformly, instead of switching color separation tables to be applied to an adjustment-target color depending on whether the object attribute is text/line/graphics, or image. |
| US11252296B2 |
Facsimile for displaying address confirmation, control method, and non-transitory recording medium
A facsimile, a control method, and a non-transitory recording medium. The facsimile designates destination information according to a designation operation by a user, extracts the destination information from an image indicated by image information, determines whether the destination information designated according to the designation operation and the destination information extracted from the image match, and display on a display, a notification screen based on a result of determination. |
| US11252289B2 |
Image processing apparatus, information processing method, and storage medium
According to one aspect of the present disclosure, an image processing apparatus in which a plurality of applications operates, the image processing apparatus comprises: a selection unit that selects, from the plurality of applications, one or more applications used for performing setting of a function; a setting unit that sets whether a setup screen for the one or more applications selected by the selection unit is displayed in a first mode or a second mode; and a display unit that displays the setup screen for the one or more applications in the first mode or the second mode based on information set by the setting unit, wherein one or more functions available in a setup screen displayed in the second mode are fewer than functions available in a setup screen displayed in the first mode. |
| US11252282B2 |
Data playback system, data playback method, data playback terminal, printer, and server
There are provided a data playback system, a data playback method, a data playback terminal, a printer, and a server which are capable of playing sound from a printout and viewing a favorable image.Image data of an image printed on an instant film and sound data associated with the image data are stored in a data storage server. In a case where a two-dimensional code printed with the image on the instant film is read by a data playback terminal, access information to the image data of the printed image and the sound data associated with the image data is obtained. The data playback terminal accesses the data storage server based on the obtained access information, and downloads and plays the image data of the printed image and the sound data. |
| US11252281B2 |
Network interface for tracking radio resource utilization
A method is provided for performing RAN-usage-based tracking in a wireless core network. The method includes obtaining a plan code for a communication device connecting to a radio access network (RAN); associating, based on the plan code, the communication device with a RAN-usage-based plan; and reporting, after the associating, a tracking instance of RAN usage by the communication device. |
| US11252280B2 |
Conveyor call center with cryptographic ledger
A system of handling callers, uses a computer, that receives a call, assigns an operator to handle the call, and automatically recognizes at least one aspect of a voice from a caller, and automatically forms a response to be given to the caller. The caller is prevented from knowing they are speaking with a computer by receiving responses from multiple different similar sounding operators. The computer providing sound to the caller which interferes with the caller being able to determine that the caller has been placed on hold from the operator, e.g., an average of multiple people talking in the background. The computer also maintains a ledger of the call, where the ledger includes information about recognized voice from the caller, and responses which were given to the caller, for each of a plurality of exchanges which occur during the call and distributes that ledger. |
| US11252279B2 |
Method and system for fraud clustering by content and biometrics analysis
A computer-implemented method for proactive fraudster exposure in a customer service center according to content analysis and voice biometrics analysis, is provided herein. The computer-implemented method includes: (i) performing a first type analysis to cluster the call interactions into ranked clusters and storing the ranked clusters in a clusters database; (ii) performing a second type analysis on a predefined amount of the highest ranked clusters, into ranked clusters and storing the ranked clusters; the first type analysis is a content analysis and the second type analysis is a voice biometrics analysis, or vice versa; (iii) retrieving from the ranked clusters, a list of fraudsters; and (iv) transmitting the list of potential fraudsters to an application to display to a user said list of potential fraudsters via a display unit. |
| US11252273B2 |
Community safety, security, health communication and emergency notification system providing emergency source tracking
A community safety system (CSS) including a notification management entity (NME) comprising servers, the NME communicatively coupled to multiple user devices and one or more administrator devices (collectively, registered user devices). The CSS includes a plurality of registered users, wherein registered users may share their own location, as well as sighting information about the location of a source of an emergency (e.g. a perpetrator) with the NME of the CSS. The NME may generate and provide display objects on a visualization interface of one or more users mobile devices displaying a map, the display objects indicative of user locations and/or emergency source location in the map displayed (e.g., in accordance with the map coordinate system). |
| US11252268B2 |
Electronic device including antenna
According to an embodiment, an electronic device may include: a housing including a first surface and a second surface facing away from the first surface; a display at least partially accommodated in the housing and viewable through the first surface; a conductive layer disposed between the display and the second surface and including a first opening; a support disposed between the second surface and the conductive layer and including a conductive portion; and a wireless communication circuit electrically connected to the conductive layer, and configured to transmit and/or receive a signal through an antenna including at least a portion of the conductive layer surrounding the first opening. |
| US11252262B2 |
Coordination among artificial reality links
Disclosed herein are related to a system and a method of coordinating among artificial reality links. In one approach, a system comprising a first console for executing an application for artificial reality may include a wireless communication interface and a processor. The processor may be configured to send, via the wireless communication interface, a first message comprising a first plurality of parameters and a first schedule for access to a shared wireless channel by the first console, receive, from a second console via the wireless communication interface, a second message comprising a second plurality of parameters and a second schedule for access to the shared wireless channel by the second console, update, responsive to the second message, the first plurality of parameters and the first schedule, and/or send, via the wireless communication interface, a third message comprising the updated first plurality of parameters and the updated first schedule. |
| US11252260B2 |
Efficient peer-to-peer architecture for distributed machine learning
A computer in a distributed peer-to-peer system is disclosed. The distributed system includes a plurality of computers configured to run a distributed machine learning (ML) program represented as an expression of a target loss function with a model parameter matrix. The computer includes: a parser module configured to convert a loss function in the distributed program into an expression graph and then one or more multiplication trees; a parameter replica module in communication with the parser module, the parameter replica module configured to maintain the model parameter matrix of the ML program; a compressor module in communication with the parameter replica module, the compressor module configured to extract sufficient factors from the expression graph for updating the model matrix; and a communication module in communication with the compressor module, the communication module configured to send the sufficient factors for updating model matrix to other machines in the distributed system. |
| US11252259B2 |
Service processing method, mobile edge computing device, and network device
This application discloses a service processing method, a mobile edge computing device, and a network device, to resolve a technical problem of low resource utilization of an MEC in the prior art. The method includes: receiving, by a first mobile edge computing device, a first service request, where the first service request includes a service type and/or service content; sending, by the first mobile edge computing device, a second service request to a second mobile edge computing device, where the second service request includes at least part of the service type and/or at least part of the service content, and identification information of the first mobile edge computing device; and receiving, by the first mobile edge computing device, service data corresponding to the second service request from the second mobile edge computing device. |
| US11252257B2 |
Dynamic rest access
Techniques and solutions are described for providing access to data using web services, such as OData services. OData services can be dynamically added to a routing table used by a router. The router can be statically registered with an application instance, such as a server associated with the application instance. A web service can be generated from a definition of a data artefact, such as a table or view, stored in a database. A virtual data artefact corresponding to the data artefact can be generated, and used to generate the web service. A message service can cause web services to be generated when a data artefact is added or changed. |
| US11252254B2 |
System and method for improvements to a content delivery network
Provided is a content delivery method and architecture for ways to improve the caching of content at one or more content providing devices of a Content Delivery Network (CDN). In particular, systems and methods are disclosed that vary the requirements to store resources or content within a caching device using a dynamic popularity threshold. This popularity threshold may be varied based on a measured fullness of the storage capacity of the cache device. In another example, the dynamic popularity threshold may be further varied based on a cache pressure, which is an indication of how often the cache replaces stored items with new items. The adjustment to the popularity threshold for caching particular content at the caching device may thus be based on a number of requests for content received at the device to tune the caching procedure for a particular region of the CDN. |
| US11252253B2 |
Caching aggregate content based on limited cache interaction
A system comprising: a plurality of mobile edge caches integrated within a corresponding plurality of mobile environments; a core cache managed by a content delivery network extender (CDNE) service, the core cache to store content titles from at least one content provider and to selectively distribute the content titles to the mobile edge caches, wherein each content title is encoded at a plurality of stream rates and comprises a plurality of title segments, each title segment associated with a particular one of the stream rates and capable of being independently cached in the core cache and the plurality of mobile edge caches; a content collector coupled to the core cache, the content collector to cause title segments to be collected and stored in the core cache, the content collector to aggregate cache usage data provided by the plurality of mobile edge caches and to identify title segments to be collected and stored in the core cache based on an evaluation of the aggregate cache usage data. |
| US11252252B2 |
Installable web applications
According to one general aspect, a method of executing a web application installed on an apparatus may include executing, via a processor included by the apparatus, a web browser. The method may include loading, via the web browser, the web application. In some embodiments, the web application may include a manifest and at least a portion of a web site and wherein the web application was packaged as an installable entity. The method may further include managing, by the web browser, the execution of the web application. The method may include accessing, via the web browser, from a local storage medium one or more portions of the web site included by the web application. In some embodiments, the one or more portions of the web site may have been stored in the local storage medium when the web application was installed. |
| US11252251B2 |
Cache data request method and related device
Embodiments of the present disclosure provide a cache data obtaining method. After detecting a first request message specific to a target data server, a data request device determines, based on a pre-received local cache device list sent by a base station, a target local cache device used to cache service data of the target data server. Subsequently, the data request device establishes a network connection to the target local cache device, and sends a service data request specific to the target data server to the target local cache device by using the network connection. With data of the target data server cached to a local cache device on a base station side, the data request device can directly request the target service data from the target local cache device. |
| US11252249B2 |
Cognitive automation-based engine to propagate data across systems
Aspects of the disclosure relate to cognitive automation-based engine processing to propagate data across multiple systems via a private network to overcome technical system, resource consumption, and architecture limitations. Data to be propagated can be manually input or extracted from a digital file. The data can be parsed by analyzing for correct syntax, normalized into first through sixth normal forms, segmented into packets for efficient data transmission, validated to ensure that the data satisfies defined formats and input criteria, and distributed into a plurality of data stores coupled to the private network, thereby propagating data without repetitive manual entry. The data may also be enriched by, for example, correcting for any errors or linking with other potentially related data. Based on data enrichment, recommendations of additional target(s) for propagation of data can be identified. Reports may also be generated. The cognitive automation may be performed in real-time to expedite processing. |
| US11252248B2 |
Communication data processing architecture
Various systems and methods are provided that allow reviewers to review and potentially flag processed communication data in order to spot potential malfeasance or illegal activity. Certain systems and methods includes modules for removing duplicate data from the communication data files, generating thread data for email data files, generating lexicon tag data for the data files, removing blacklisted data that meets blacklisted criteria, or generating group association data. |
| US11252247B1 |
Dynamic streaming content buffering based on user interest
A method, computer system, and a computer program product for interest-based digital content caching is provided. Hints regarding content of interest associated with a user are determined and used to identify portions of streaming media that are uninteresting to the user. Then the streaming media is played for the user and a portion of the post-uninteresting content is stored in a child cache before the portion of uninterest is played. |
| US11252245B2 |
Information pushing method and device
Embodiments can include an information pushing method and device. An embodiment of the method can include: receiving an information stream data acquisition request sent by a terminal, wherein the information stream data acquisition request comprises query information; performing a query according to the query information to obtain first information stream data; acquiring at least one of a search record or a browsing record of an account associated with the terminal with respect to a predetermined time period; determining, based on the at least one of the search record or the browsing record, a keyword; determining second information stream data located in a preset information stream data set and matching the key word; generating, based on the first information stream data and the determined second information stream data, data to be pushed; and pushing to the terminal the data to be pushed. The embodiment can achieve targeted information pushing. |
| US11252238B2 |
Systems and methods for outputting updated media
In certain embodiments, a device for outputting updated messages a determinate number of times is provided. The device may comprise an output, an input, one or more processors, a memory, code stored in the memory and executed by the processor, wherein at least one message is received from time to time by the device through the input, and wherein the code selects if and when the at least one message is to be provided on the device via the output a determinate number of times. The operation of the enabled device can allow the message to be delivered to the user as the result of some action in regards to enabled device usage. |
| US11252235B2 |
System and method for processing information
A system for processing biological data is provided and includes a monitoring device configured to receive biological data responsive to a living being. The system also includes an interface device communicated with the monitoring device to receive the biological data. Furthermore, the system includes a data transfer device, configured to receive the biological data from the interface device and communicate the biological data to a processing device for processing. Additionally, a method for processing biological information is provided, wherein the method includes receiving biological information from a monitoring device responsive to a first party and responsive to an exercise regime and processing the biological information to generate resultant information responsive to at least one physical characteristic of the first party. |
| US11252231B2 |
Methods and systems for managing a resource in a networked storage environment
Methods and systems for a networked storage system are provided. One method includes receiving a resource identifier identifying a resource of a network storage environment as an input to a processor executable application programming interface (API); and predicting available performance capacity of the resource by using an optimum utilization of the resource, a current utilization and a predicted utilization based on impact of a workload change at the resource, where the optimum utilization is an indicator of resource utilization beyond which throughput gains for a workload is smaller than increase in latency in processing the workload. |
| US11252229B2 |
Connection method for smart home device and apparatus thereof
A connection method and apparatus are provided for smart home devices. A method for connecting a user equipment to smart home devices includes identifying, when a connection request for a smart home device is detected, reception of a first broadcast message transmitted by the smart home device according to a first communication mode; determining whether the smart home device permits communication mode negotiation based on information included in the first broadcast message; and establishing a connection to the smart home device according to the first communication mode or a second communication mode based on a result of the determining. |
| US11252228B2 |
Multi-tenant multi-session catalogs with machine-level isolation
Methods, systems, and computer-readable media for creating and managing cloud servers and services using a multi-tenant multi-session catalog with machine-level isolation are described herein. In one or more embodiments, a cloud service provider may receive requests from one or more tenants for predefined numbers of servers. The cloud service provider may initialize a plurality of servers, wherein the plurality of servers is less than a sum of the totality of server requests, and create a catalog of unassigned servers of the plurality of servers. Responsive to a logon request from a user of a tenant, the cloud service provider may assign a server from the catalog of unassigned servers to the tenant, remove the server from the catalog of unassigned servers, broker the user of the tenant to connect to the server, and limit access to the server to only users of the tenant. |
| US11252214B1 |
Proactive reduction of bit rate of streaming media en route to UE in response to prediction that UE will experience reduced-throughput coverage
A method and system for proactively reconfiguring communication to a user equipment device (UE) in anticipation the UE experiencing a coverage-throughput reduction when the UE is receiving streaming media. An example method includes (i) predicting, when the UE is receiving streaming media from a media server, that the UE is going to experience the coverage-throughput reduction and (ii) based at least in part on the predicting, proactively initiating transcoding of the streaming media to reduce a bit rate of the streaming media en route to the UE in a communication path between the media server and the UE, the initiating occurring before the UE experiences the coverage-throughput reduction so that the bit rate of the streaming media is reduced by when the UE experiences the coverage-throughput reduction. |
| US11252209B1 |
Network architecture for parallel data stream analysis and modification
Network architectures interface with several real-time streams that control network operation. The network can analyze stream data by storing incoming raw stream data, processing the data, and controlling network operations based thereon. Specific packets, bits, flags, fields, or messages may be targeted, including HL7 ADTs. Data is queued for processing in a FIFO manner to avoid timeline mistakes. The network sets a configuration value based on the data analyzed in this time ordering, and a relational database can be updated in real-time with these values as stream data is incoming. Separate clean-up functions separately manage the database by adjusting the values as they become old. Timeline information is generated and selectively broadcast based on the operations value, potentially with additional information from the targeted data. The network selectively provides this information to users interfaces and displays as dictated by the operating value and information calculated therefrom. |
| US11252206B2 |
Reducing setup time for online meetings
An online meeting system begins the process of connecting a user to an online meeting when the user enters a prejoin dialog for choosing meeting settings, rather than waiting until the user chooses to actually join the meeting after entering settings. Starting the meeting connection process at this time allows a shorter perceived connection time to the meeting and thus reduces user frustration with the meeting system. |
| US11252205B1 |
Real time information analysis for a teleconference
Methods, systems, and storage media for real time information analysis for a teleconference are disclosed. Exemplary implementations may: receive, at a subscriber server, a voice stream from a first participant in a teleconference; convert at least a portion of the voice stream into a string of characters; select a keyword from a subset of the string of characters; access a network search engine and presenting the keyword as a query for the network search engine; receive a search result returned by the network search engine based on the query; analyze the search result for ancillary content based on the semantic context of the voice stream; and provide the ancillary content for display in a device used by a second participant in the teleconference. |
| US11252200B2 |
Apparatus and method for P-CSCF failure detection and processing
Described herein are apparatus and methods for detecting and handling Proxy-Call Session Control Function (P-CSCF) failures. A method may include sending, by a serving-CSCF (S-CSCF), a message to the P-CSCF to check operability. The S-CSCF may mark in a list that the P-CSCF is unavailable if a negative response or no response is received from the P-CSCF and may set a timer to recheck availability of the unavailable P-CSCF. A message is sent by the S-CSCF to a device management system to force a user device to stop using the unavailable P-CSCF and register with a different P-CSCF. The S-CSCF may recheck availability of the unavailable P-CSCF upon expiration of the timer and may remove the unavailable P-CSCF from the list when a positive response is received from the unavailable P-CSCF. |
| US11252198B2 |
Policy-based secure containers for multiple enterprise applications
Technologies for providing policy-based secure containers for multiple enterprise applications include a client computing device and an enterprise policy server. The client computing device sends device attribute information and a request for access to an enterprise application to the enterprise policy server. The enterprise policy server determines a device trust level based on the device attribute information and a data sensitivity level based on the enterprise application, and sends a security policy to the client computing device based on the device trust level and the data sensitivity level. The client computing device references or creates a secure container for the security policy, adds the enterprise application to the secure container, and enforces the security policy while executing the enterprise application in the secure container. Multiple enterprise applications may be added to each secure container. Other embodiments are described and claimed. |
| US11252194B2 |
Method and apparatus of automatic generation of a content security policy for a network resource
Methods and apparatuses for automatic determination of a content security policy for a network resource are described. A proxy server receives from a first authenticated client device a first request for a first network resource, retrieves the first network resource and transmits a first response to the first client device that includes a content tracker that causes the client device to report information on additional network resources identified when the first client device interprets the first network resource. A content security policy is determined based on the reported information. The proxy server receives, from a second client device, a second request for the first network resource. The proxy server transmits, to the second client device, a second response that includes the content security policy that is determined based on the information on the additional network resources. |
| US11252192B1 |
Dynamic security scaling
An indication that a change implicating security in a network environment needs to be made is received. In response to receiving the indication, a first set of instructions for reconfiguring at least one network device is determined, and a second set of instructions for reconfiguring at least one security device is determined. At least one network device and at least one security device are, respectively, caused to be reconfigured in accordance with the respective first and second set of instructions. |
| US11252187B2 |
Anti-replay processing method and device utilizing the same
An anti-replay processing method. The method is utilized in a service function path (SFP) to monitor packet count in the SFP to identify replay attack event, and recognizes a segment of the SFP where the replay attack event occurs as an insecure path. The method further initiates a secure path bypassing the insecure path, labels normal SFC packets with an asserted secure flag, and blocks replayed packets without the asserted secure flag at the exit stage of the secure path. |
| US11252183B1 |
System and method for ransomware lateral movement protection in on-prem and cloud data center environments
A technique to stop lateral movement of ransomware between endpoints in a VLAN is disclosed. The security appliance may be implemented on-prem or in cloud data center environments. A security appliance is set as the default gateway for intra-LAN communication. Message traffic from compromised endpoints is detected. Attributes of ransomware may be detected in the message traffic, as well as attempts to circumvent the security appliance. Compromised devices may be quarantined. |
| US11252174B2 |
Systems and methods for detecting security risks in network pages
Embodiments include methods and systems for detecting security risks in network pages, comprising providing at least one secure transaction page to a secure transaction provider, the secure transaction page enabling the secure transaction provider to request secure transactions, determining a request rate for the secure transaction page associated with the secure transaction provider, determining a predetermined threshold for a change in request rate for the secure transaction page by the secure transaction provider, determining that the predetermined threshold, for the change in request rate for the secure transaction page by the secure transaction provider, has been exceeded, and providing a notification to the secure transaction provider based on the determination that the predetermined threshold, for the change in request rate for the secure transaction page by the secure transaction provider, has been exceeded. |
| US11252164B2 |
Systems and methods for generating and validating certified electronic credentials
Systems and methods for generating and validating certified electronic credentials are disclosed. A certified electronic credential may comprise a computer-readable file representative of a credential bestowed upon a recipient, in which the file is protected with one or more document integrity and document usage security feature. A publisher may receive a certified electronic credential order from a credentialer and prepare a plurality of certified electronic credentials. The publisher may associate each credential with authentication information and a credential record, and retain a database of associated authentication information and credential records. The publisher may provide validation services, receiving a validation request through a credentialer's validation portal, and provide a response through the credentialer's portal indicative of the validity, additional information about the credential, and even an audit trail. A validating entity may receive credential validation through the credentialer with a heightened degree of confidence in the validation and lack of forgery. |
| US11252163B1 |
Storing call session information in a telephony system
In an example of this disclosure, a method may include receiving, by a database server, a data write request. The data write request may include authentication information corresponding to a first call session and first additional information. The method may include generating, by the database server, a first unique identifier based on the first additional information. The authentication information may correspond to the first unique identifier. The method may include storing the first unique identifier and the authentication information in a data structure in a memory of the database server. |
| US11252162B2 |
Enhancement to the IS-IS protocol for eliminating unwanted network traffic
Systems and methods for enhancing a routing protocol of a telecommunications network are provided. In one embodiment, a method for enhancing the Intermediate System to Intermediate System (IS-IS) routing protocol is provided. The method includes the steps of determining if a password on a received Link State Protocol data unit (LSP) is authenticated and determining if the LSP is generated by an authenticated node. If the LSP password is not authenticated or the LSP is not generated by an authenticated node, the method further includes the step of setting a lifetime expiration timer of the LSP to zero. |
| US11252161B2 |
Peer identity verification
A system of peer identity verification that reduces the risk of identity theft in case of a data breach. The system does not require a vendor to maintain a database of sensitive customer-related data. Cryptographic keys are used. The system creates a one-time encryption keypair. The public and private keys of each user are saved securely on each user's device. While the public key for each user is stored remote from each user's device (such as in a cloud), the private key for a given user is not stored anywhere other than securely on that user's device. Thereafter, a user (i.e., the main user) requests another user to act as their “trusted peer” to be added to their “trust cluster.” If that other user accepts the request, the main user's private key is encrypted with that other user's public key and this encrypted data gets stored remotely, such as in a cloud. Thereafter, a trusted peer is authorized and able to verify the identity of a main user by being able to decrypt and read a message encrypted with the main user's public key. The system effectively puts the recovery and protection of a main user's private key in the hands of the main user's “trusted peers” in their own designed “trust cluster.” |
| US11252157B1 |
Permission management for electronic resources
Various embodiments provide for a pre-validation of various aspects of an application deployment before any resources are provisioned in a user account. Pre-validation can perform checks on aspects such as connectivity and credential-based access for instances to be provisioned in a user account. A determination can also be made as to whether a role exists in the user account that has the appropriate policies and permissions to enable these instances, if provisioned, to have access to external services and resources needed to support the application. These checks can be performed through a launch wizard or deployment service that can collect information though a single console, and can ensure that these checks succeed before the requested instances are provisioned in the user account. |
| US11252156B2 |
Secure data transmission
A system may include a first network in which user device(s) and a HIP server are communicably coupled. The first network may include a secure data administrator, such as a medical data system, that stores secure data. In some implementations, at least one of the user devices may include a web module and communicate with a web server through a second network. At least one of the user device may be restricted from communicating with the secure data administrator, so the user device may request data stored in the secure data administrator through the HIP server. The user device may base the requests for the data on information received from the web server. |
| US11252155B2 |
Systems and methods for on-network device identification
Systems and methods are described for on-network device identification. A user device may make an application programming interface (API) call to an address associated with a network device. The API call may comprise an indication of an address associated with the user device. Based on the API call, the network device may send an indication of the address to a computing device associated with an on-network service. The computing device associated with the on-network service may determine that the user device is authorized to connect to a network or to access an on-network service. |
| US11252154B2 |
Apparatus and server for sharing position information of vehicle
An apparatus for sharing location information of a vehicle may include: a communication circuit configured to communicate with a server, and a processor electrically connected with the communication circuit. The processor may be configured to receive, via the communication circuit, authentication information for sharing the location information of the vehicle from the server; transmit, via the communication circuit, the authentication information to an external device, which is a target for sharing the authentication information, such that the external device receives the location information from the server; and acquire the location information from the server using the authentication information. |
| US11252153B2 |
Method of providing mutual authentication of contents in social media service, and server, user terminal, and application implementing the method
Disclosed is a method of providing, by a server, mutual authentication of mutual authentication participants for contents of a social media service, the method including: receiving requestor authentication information generated in a terminal of a requestor requesting mutual authentication for specific contents; receiving acceptor authentication information generated in a terminal of an acceptor accepting the mutual authentication for the specific contents; and verifying the requestor authentication information and the acceptor authentication information, and storing the specific contents included in the requestor authentication information and the acceptor authentication information as mutually authenticated contents of the requestor and the acceptor. The requestor authentication information includes the specific contents and a signature of the requestor for the specific contents, and the acceptor authentication information includes the specific contents and a signature of the acceptor for the specific contents. The specific contents are selected in the terminal of the requestor displaying contents provided in the social media service and then is transmitted to the terminal of the acceptor. |
| US11252142B2 |
Single sign on (SSO) using continuous authentication
Systems and methods for continuous secure single sign on for secure access services. A user device stores a first authentication factor associated with a user for authorizing access. An authentication server receives an authentication request by the user to a secure access service and establishes a secure communication channel between the authentication server and the user device. The user device performs a user authentication according to a second authentication factor, generates an authentication response indicating the first authentication factor and confirming the authentication, the authentication response and transmits the response to the authentication server via the secure communication channel. The authentication server grants access to the secure access service based on the authentication response, repeatedly determines whether the secure communication channel is maintained while the user accesses the secure access service, and permits access to the secure access service by the user while the secure communication channel is maintained. |
| US11252141B2 |
Method and system for operating a teleoperated surgical instrument and a manual instrument
A system comprises a teleoperated manipulator, a manually operated surgical instrument coupled to the teleoperated manipulator, a teleoperated surgical instrument coupled to the teleoperated manipulator, and a shape sensor comprising a first portion and a second portion. The first portion of the shape sensor is coupled to a proximal end of a cannula, and the second portion of the shape sensor is coupled to the manually operated surgical instrument. The shape sensor is configured to provide a sensor input to a controller, and the sensor input comprises information representing an insertion depth of the manually operated surgical instrument into the cannula. |
| US11252138B2 |
Redundant device locking key management system
A redundant key management system includes a key management system coupled to a plurality of server devices through a network. A first server device includes a managed device coupled to a first remote access controller device that receive a device locking key from the key management system and uses it to lock the managed device. The first remote access controller device then encrypts the device locking key, broadcasts the encrypted device locking key through the network to a second remote access controller device in a second server device, and erases the device locking key. Subsequently, the first remote access controller device transmits a request to retrieve the encrypted device locking key. When the first remote access controller receives the encrypted device locking key from the second remote access controller device, it decrypts the encrypted device locking key and uses the resulting device locking key to unlock the managed device. |
| US11252137B1 |
Phone alert for unauthorized email
The disclosed techniques enable selective forwarding and blocking of emails directed to an alias email address based on a whitelist, as well as text message alerts triggered by emails from unauthorized senders. More generally, the disclosed techniques enable an enterprise system to store contact emails for users (i.e., alias email addresses) while avoiding storing and managing personal email addresses for the user. For example, the enterprise system may forward personal email addresses to an aliasing server configured to generate alias email addresses based on the personal email addresses. The aliasing server may operate as a “middle man” that receives emails directed to the alias email addresses and that forwards the emails to the personal email addresses (when appropriate). The enterprise system may store and maintain the alias email addresses in lieu of the personal email addresses. |
| US11252135B2 |
Method of processing data
The present invention discloses a method of processing data, comprising: sending, a first data to a first image capturing device, by the first computer, through an image output interface of the first computer; sending, the first data to the second computer, by the first image capturing device. The first data comprises a first information and a second information, the second data comprises a third information and a forth information. The second computer processes the third data or the forth data by a first method if the third information is consistent with the first information and the forth information is consistent with the second information; and the second computer processes the third data or the forth data by a second method if the third information is inconsistent with the first information and the forth information is inconsistent with the second information. |
| US11252134B2 |
System and method for managing secure communications between modules in a controller area network
This document describes a system and method for managing communications between modules in a Controller Area Network (CAN) in a secure manner. In particular, the system employs a hierarchical key generation method that allows a module in the CAN to use a single ascendant key together with relevant identifiers to generate descendant keys for CAN identities in the Controller Area Network. These keys are then used by the broadcasting and receiving CAN modules to authenticate published messages. |
| US11252131B2 |
Obfuscation of email addresses
A method, apparatus, and computer program product are disclosed for facilitating two-way email communication in manner that obfuscates sender and recipient email addresses. The method includes receiving a correspondence request indication; assigning a first transaction address to a sender and a second transaction address to a recipient; receiving a message from the sender; associating the message from the sender with the first transaction address; and causing a transmission of the message from the sender to the recipient using the first transaction address. A corresponding apparatus and computer program product are also provided. |
| US11252130B2 |
System and method for data security management
The invention relates to a computer-implemented system and method for automating the secure deployment of application identity manager (AIM) security agents to ensure integrity of identity assertion during the security sensitive agent installation process, while providing significant cost and time savings in the deployment process. The invention also relates to a command line interface (CLI) to representational state transfer (REST) web services proxy, which provides a standards-based REST web service that interfaces with a Microsoft .NET MVC framework to enable cross platform automation and integration with vault management functions. The invention also relates to a multi-vault management platform comprising a graphical user interface-based portal to manage vault functions across a number of vaults with advanced error handling and process integration. |
| US11252129B2 |
Packet transmission method and apparatus
An embodiment provides a packet transmission method and apparatus, to resolve a problem that occurs when a packet cannot traverse a NAT device when VTEPs communicate with each other through the NAT device. The method is applied to a VXLAN including a first VTEP, a second VTEP, and a NAT device. The method includes: performing, by the first VTEP, VXLAN encapsulation on a first packet, obtaining a second packet; sending, by the first VTEP, the second packet to the second VTEP through the NAT device; and performing, by the second VTEP, VXLAN decapsulation on the received second packet, to obtain the first packet. The first packet is a packet to be sent by the first VTEP, a destination port number of the second packet is obtained based on a destination IP address of the second packet, and a source port number of the second packet is a preset port number. |
| US11252117B2 |
Electronic communication message coaching service
Embodiments for implementing an electronic communication coaching service by a processor are disclosed. An appropriateness of a communication may be interpreted prior to a user sending the communication to another party according a plurality of identified contextual factors. The user may be alerted to a possible negative impact of sending the communication to the another party if the interpreted appropriateness is less than a predetermined threshold. A delay in sending the communication may be suggested for a selected period of time to implement one or more suggestive corrective actions to the communication. |
| US11252110B1 |
Negotiation of alignment mode for out of order placement of data in network devices
A first network device transmits, to a second network device, a first indication indicating that the first network device is willing to transmit data to the second network device using an alignment mode for aligning protocol data units (PDUs) that include data with transport packets that encapsulate the PDUs for transmission of the data to the second network device. The first network device receives, from the second network device, a second indication indicating that the second network device is requesting use of the alignment mode for transmission of data from the first network device to the second network device. In response to transmitting the first indication to the second network device and receiving the second indication from the second network device, the first network device enables the alignment mode for transmission of data from the first network device to the second network device. |
| US11252106B2 |
Alleviating congestion in a virtual network deployed over public clouds for an entity
A method for deploying different virtual networks over several public cloud datacenters for different entities. For each entity, the method (1) identifies a set of public cloud datacenters of one or more public cloud providers to connect a set of machines of the entity, (2) deploys managed forwarding nodes (MFNs) for the entity in the identified set of public cloud datacenters, and then (3) configures the MFNs to implement a virtual network that connects the entity's set of machines across its identified set of public cloud datacenters. In some embodiments, the method identifies the set of public cloud datacenters for an entity by receiving input from the entity's network administrator. In some embodiments, this input specifies the public cloud providers to use and/or the public cloud regions in which the virtual network should be defined. Conjunctively, or alternatively, this input in some embodiments specifies actual public cloud datacenters to use. |
| US11252097B2 |
Continuous calibration of network metrics
Techniques for oscillatory complementary network property calibration of a network connection can be implemented by measuring a first network property (e.g., latency or bandwidth output) as a function of bandwidth input and performing statistical analysis to determine a correlation. If a non-zero correlation coefficient is detected, a second network property complementary to the first network property can be measured to determine a first value of the second network property. Likewise, the second network property can be measured as a function of bandwidth input to determine a second correlation which, if positive, may indicate how to determine a second value of the first network property. The first value and the second value can be utilized to determine a third value of a third network property (e.g., network latency and network capacity utilized to determine bandwidth-delay product). |
| US11252090B1 |
Systems and methods for predicting future traffic loads of outgoing interfaces on network devices
A disclosed method may include (1) sampling traffic forwarded by a network device in accordance with certain prefixes, (2) determining, based at least in part on the sampling of traffic, a subset of the prefixes whose usages satisfy a certain threshold, (3) computing a plurality of hit probabilities that each represent a relative likelihood that one of the subset of prefixes is used by the network device to forward the traffic, (4) identifying a plurality of outgoing interfaces that carry the traffic in connection with the subset of prefixes, (5) identifying a plurality of prefix-specific loads of the outgoing interfaces, and then (6) predicting a plurality of future traffic loads of the outgoing interfaces based at least in part on (A) the hit probabilities of the subset of prefixes and (B) the prefix-specific loads of the outgoing interfaces. Various other systems and methods are also disclosed. |
| US11252088B2 |
Methods and systems for network congestion management
A method for managing network congestion is provided. The method comprises: receiving, at a receiver, a packet comprising a timestamp provided by a first clock of a sender; deriving, by the receiver, a latency value based at least in part on the timestamp provided by the first clock and a receipt time provided by a second clock of the receiver; determining a latency change by comparing the latency value with a previous latency value; and determining a state of network congestion based at least in part on the latency change. |
| US11252085B2 |
Link resource transmission method and apparatus
Embodiments of this application provide a link resource transmission method and apparatus. The method includes the following steps. A first node floods first control routing information, where the first control routing information includes an identifier of an area in which the first node is located. A second node floods second control routing information, where the second control routing information includes an identifier of an area in which the second node is located. The first node determines, through comparison, whether the identifier of the area in which the first node is located is consistent with the identifier of the area in which the second node is located. When the identifier of the area in which the first node is located is consistent with the identifier of the area in which the second node is located, the first node transmits link data information of the first node to the second node. |
| US11252083B2 |
Data packet forwarding in an NGSO satellite network
A communication system includes a satellite constellation, one or more gateways and a network controller. The satellite constellation includes multiple satellites to facilitate communication between a number of user terminals (UTs). Each gateway communicates with one or more of the satellites. The network controller controls operation of the satellites, the gateways and the UTs. The satellites, the UTs, the gateways and the network controller include hardware that may also be software-defined network (SDN) enabled to ensure a persistent end-to-end data packet forwarding including proactive updates and reactive updates to forwarding tables. The proactive updates handle deterministic and time-synchronized link connectivity changes and the reactive updates handle ad hoc link connectivity changes. |
| US11252081B2 |
Optimized programming of forwarding data in network device hardware
Some embodiments provide techniques for optimized programming of forwarding data in network device hardware. An operating system executing on the network device receives information associated with a network topology of a network(s) to which the network device belongs. Based on this information, the operating system can generate various data structures that facilitate the routing and forwarding of data through the network device. Based on the generated data structures, the operating system may then program hardware resources in the network device in order to implement routing and forwarding operations stored in the data structures. During generation of the data structures, the operating system may perform some operations to optimize the programing of the hardware resources in a manner that reduces the amount of hardware resources that would otherwise be used without such optimizations. |
| US11252073B1 |
Fast, reliable, and extensible active-standby multi-vendor link redundancy
Network link redundancy may be provided. A node comprising a virtualization of a network topology comprising a plurality of devices may be provided. Next, the node may be provided with at least two ports. Each of the at least two ports may respectively comprise an inside facing portion that uses a first protocol and an outside facing portion that uses a second protocol. The node may operate using the first protocol. A behavioral mode of the at least two ports may be controlled and the behavioral mode of the at least two ports may be communicated to at least one other node outside the node. |
| US11252072B1 |
Graph-based rebinding of packet processors
In one example, a method comprises generating, by a forwarding manager for an internal forwarding path executed by a plurality of packet processors of a forwarding unit of a network device, a dependencies structure that specifies one or more dependencies for a plurality of nodes, wherein the plurality of nodes represent different types of forwarding path elements of the forwarding path, wherein the plurality of nodes is binded to a first set of one or more packet processors of the plurality of packet processors; and rebinding, by the forwarding manager, a second set of one or more packet processors of the plurality of packet processors to the plurality of nodes, wherein rebinding the second set of one or more packet processors to the plurality of nodes is performed in a reverse direction of the dependencies structure. |
| US11252069B2 |
Activity stream based collaboration
An activity stream based interaction model is disclosed. To cause a desired application level action to be performed at a remote system, such as automatically retrieving and displaying a document in a viewer or other portion of a user interface at the remote system, a text-based tag, such as a hash tag, is inserted into an activity stream. The activity stream is sent to the remote system, which is configured to respond to the text-based tag by performing, at least in part automatically, the corresponding application level action. |
| US11252066B2 |
Automated network monitoring and control
A computer implemented method of network monitoring and control. The method includes identifying an alert related to a monitored device of a group of monitored devices; confirming that automatic actions are applicable for the monitored device; and performing at least one predefined automatic action for the monitored device, the action being selected based on the identified alert. |
| US11252061B1 |
Distributed computation of graph embeddings for network traffic in virtual networks
In one set of embodiments, a host system can perform a random walk along a graph representing network traffic in a virtual network, where the virtual network comprises a plurality of virtual machines (VMs) running on a plurality of host systems including the host system, and where the random walk starts from a node of the graph corresponding to a VM running on the host system. The host system can further construct, based on the random walk, a local neighborhood of VMs associated with the VM and determine, based on the local neighborhood, whether the VM is a localized VM. Upon determining that the VM is not a localized VM, the host system can transmit a random walk data entry identifying the VM and the local neighborhood to a server communicatively coupled with the plurality of host systems. |
| US11252058B2 |
System and method for user optimized application dependency mapping
This disclosure generally relate to a method and system for mapping application dependency information. The present technology relates techniques that enable user-adjustable application dependency mapping of a network system. By collecting internal network data using various sensors in conjunction with external user inputs, the present technology can provide optimized application dependency mapping using user inputs. |
| US11252056B2 |
Transforming event data generated by remote capture agents using user-generated code
The disclosed embodiments provide a method and system for processing network data. During operation, the system obtains, at a remote capture agent, configuration information for the remote capture agent from a configuration server over a network. Next, the system uses the configuration information to configure the generation of event data from network data obtained from network packets at the remote capture agent. The system then uses the configuration information to configure transformation of the event data or the network data into transformed event data at the remote capture agent. |
| US11252055B2 |
Methods and apparatus for hardware registration in a network device
Methods and apparatus for control of a client device (e.g., consumer premises equipment in a cable network) using applications. In one aspect, an improved hardware registry is provided within the device with which the application(s) can interface to both identify and control available hardware resources. In one exemplary embodiment, the client device comprises a digital set-top box having digital video recording (DVR) capability. An application downloaded to the device discovers the registry and software interfaces associated therewith, and then utilizes the interfaces to automatically control the requisite hardware capability. Improved client device, network and head end configurations, as well as methods of operating these systems, are also disclosed. |
| US11252053B2 |
Method and system for delivering web page content using edge server
Methods, systems and programming for delivering web page content using edge server. In one example, a request is received from a user for a page including at least a piece of generic content and a plurality pieces of customized content. The request is forwarded from the user to a content server over the network. The piece of generic content and a first type of instruction are sent to the user. The piece of generic content and the first type of instruction are received from the content server as a response to the forwarded request. Each of the plurality pieces of customized content is sent to the user upon receiving a respective piece of customize content from the content server. The plurality pieces of customized content are to be assembled on the page in accordance with the first type of instruction. |
| US11252051B2 |
Method, device and computer program product for configuring service instance
Embodiments of the present disclosure relate to a method, a device and a computer program product for configuring service instances. The method comprises, at a computing device being used to implement a first service instance in a cloud environment, receiving, from a service manager of the cloud environment, a hypervisor related to a configuration of the first service instance. The method further comprises determining, based on the hypervisor, first configuration information for configuring the first service instance. The method further comprises configuring the first service instance with the first configuration information. With this method, service auto-deployment, auto-configuration and auto-association are realized, thereby improving user efficiency of configuring services and user experience. |
| US11252050B2 |
Scalable, standardized I.T. deployment platform
The present disclosure provides a scalable, standardized IT deployment environment that allows for deployment to any public or private cloud automatically, and without human interaction, that is resizable such that the individual resources can be released (“turned off”) when not needed and powered on when use is expected. Additionally, the present disclosure provides a cost calculation system for better understanding the costs of the IT environment as early as the pre-provisioning stage. The present disclosure also provides a system for proactively testing productivity and efficiency within the IT environment, the results of which can be fed back into the autoscaling mechanism. |
| US11252049B2 |
Systems and methods for providing individualized communication service
A method for providing individualized communication service includes (1) recognizing a first client being communicatively coupled to a first local communication network, (2) determining an identity of the first client, (3) transporting first data between the first client and a first operator communication network, using the first local communication network in accordance with a first service profile associated with the first client, and (4) transporting the first data using the first operator communication network in accordance with the first service profile. |
| US11252044B2 |
Network traffic prediction method, apparatus, and electronic device
The present disclosure provides a network traffic prediction method, an apparatus and an electronic device. In the present disclosure, the network traffic prediction method includes establishing a higher-level network traffic prediction model, where the higher-level network traffic prediction model includes a linear model; using independent variables of the linear model in the higher-level network traffic prediction model as dependent variables, establishing at least one layer of a lower-level network traffic prediction model, and decomposing independent variables in the lower-level network traffic prediction model till all independent variables of each lower-level network traffic prediction model are acquired naturally; and substituting a calculation model of the lower-level network traffic prediction model into the higher-level network traffic prediction model to obtain a complete network traffic prediction model. |
| US11252043B2 |
Link group configuration method and apparatus
Embodiments of this application provide a link group configuration method and an apparatus. The link group configuration method includes: obtaining, by a first network device, candidate groups to which M physical ports of the first network device belong respectively; obtaining, by the first network device from a second network device, candidate groups to which M physical ports of the second network device belong respectively; and selecting N physical links from M physical links, as a link group between the first network device and the second network device, based on the candidate groups to which the M physical ports of the first network device belong respectively and the candidate groups to which the M physical ports of the second network device belong respectively. |
| US11252040B2 |
Advanced network tracing in the data plane
Systems and methods provide advanced network tracing techniques in the data plane. A data plane packet processing system can receive a request to trace a class of network traffic. The system can receive a plurality of packets. The system can determine on a per packet basis whether to trace the plurality of packets. The system can mark a trace flag associated with a first packet in response to determining that the first packets corresponds to the class of network traffic. The system can capture a trace entry for the first packet in response to determining that the tracing flag has been marked. The trace entry can be configured to include or exclude a packet count, a packet header, a packet payload, and/or processing information. In addition, the trace buffer for storing trace entries can be configurable (e.g., fixed-size buffer, circular buffer, or dynamic buffer). |
| US11252039B2 |
System, method, and apparatus to extra vehicle communications control
An example system includes a vehicle having at least one network zone; a policy manager circuit structured to interpret a policy including a local domain name server (DNS), an authorization description, and a firewall configuration description; a configuration circuit structured to configure a gatekeeper interface circuit in response to the policy; and a gatekeeper interface circuit interposed between the at least one network zone and an external communication portal selectively couplable to an external device, and further structured to regulate communications between end points of the at least one network zone and the external communication portal. |
| US11252037B2 |
Using physical location to modify behavior of a distributed virtual network element
A system for network virtualization in which physical network resources in different physical contexts are configured to implement one or more distributed logical network elements, at least some of the physical network resources implementing the distributed logical network elements configured according the physical context of those network resources. The local configuration of a physical locale is a version of the logical configuration that is modified specifically for the physical locale. Such modification is based on locale identifiers that are assigned to the physical locales. Some systems use locale-specific information to modify next-hop preference. Some system use locally modified configurations to determine the placement of VMs. |
| US11252035B2 |
Data configuration method and apparatus
A data configuration method includes receiving a control packet sent by a control device, where the control packet is generated by the control device based on a yet another next generation (YANG) model and includes a configuration fragment, parsing the control packet to obtain the configuration fragment, and parsing the configuration fragment based on the general module to obtain a configuration command line, and executing the configuration command line. |
| US11252031B2 |
Coordinated management of IoT device power consumption and network congestion
A system for coordinated management of Internet of Things (IoT) devices to minimize power consumption and network congestion is provided. A mobile device designated as local group management device (LGMD) identifies a group of IoT devices that are configured to access a network. The mobile device receives information regarding an upcoming event involving the group of IoT devices. The mobile device generates usage knowledge specifying the group of IoT devices, a location, and a time associated with the upcoming event. The mobile device receives configuration update data that are generated based on the usage knowledge for scheduling operations of the group IoT devices. The mobile device delivers the configuration update data to the group of IoT devices. |
| US11252030B2 |
Network scale emulator
Systems, methods, and computer-readable media for scaling a source network. A system may be configured to receive a network configuration for a source network, wherein the source network comprising a plurality of nodes, receive and a scale target for a scaled network, and identify, based on the scale target, one or more selected nodes in the plurality of nodes in the source network for implementing in the scaled network. The system may further be configured to reconfigure data plane parameters and control plane parameters for each node in the one or more selected nodes. |
| US11252023B2 |
System and method for application of virtual host channel adapter configuration policies in a high-performance computing environment
Systems and methods for application of virtual host channel adapter configuration policies. An exemplary embodiment can provide a host channel adapter (HCA) with a control circuit and a memory, and at least one port operative to connect the HCA to a network fabric. A software driver of the HCA can provide a control API that exposes functionality to hyper-privileged software executing on the host. The hyper privileged software, through the control API, can request registration of a virtual HCA (vHCA) with a virtual function of the HCA. The HCA can forward the registration request to a subnet manger, which can retrieve configuration policies from a cache and return the policies to the HCA for implementation with the virtual function of the HCA. |
| US11252022B2 |
Testing framework for adaptive virtual services
Examples of the present disclosure describe a testing framework for adaptive virtual services. In an example, a function vendor provides a network function having stated specifications to a service provider. A derived signature is generated for the network function (e.g., based on associated metadata, an image associated with the network function, and/or a network signature for the network function), which is used to classify the network function. The testing framework is used to test the network function according to its classification, thereby determining a set of capabilities. In examples, a network function having the same or similar signature as a previously tested network function may be categorized according to the previously tested network function. The network function is categorized according to its determined capabilities and added to an inventory of network functions for the service provider. Network functions in the inventory can then be selected to form a computer network. |
| US11252019B2 |
Methods, apparatuses and systems for cloud-based disaster recovery
Methods, apparatuses and systems for cloud-based disaster recovery are provided. The method, for example, includes configuring, at a cloud-based computing platform, a workload associated with a function-based service used by a client machine, the workload including generated steps listing servers associated with the function-based service and configured based on information provided by a user at the client machine; and restoring the servers for each of the generated steps of the workload including executing at least one of a pre-restore script, a post-restore script, or a manual input upon receiving, from the client machine, a failure indication associated with the servers. |
| US11252016B2 |
Anomaly detection and classification in networked systems
Systems and methods are disclosed for detecting and classifying faults in a networked system. An offline training offline storage and training function can store network data and periodically train machine learning models for identifying faults. Machine learning models can include separate detection and classification models. These machine learning models can be periodically provided to an online anomaly detection function and an online anomaly classification function for detecting and classifying anomalies in real time. |
| US11252014B2 |
Forming root cause groups of incidents in clustered distributed system through horizontal and vertical aggregation
A system and method for the aggregation and grouping of previously identified, causally related abnormal operating condition, that are observed in a monitored environment, is disclosed. Agents are deployed to the monitored environment which capture data describing structural aspects of the monitored environment, as well as data describing activities performed on it, like the execution of distributed transactions. The data describing structural aspects is aggregated into a topology model which describes individual components of the monitored environments, their communication activities and resource dependencies and which also identifies and groups components that serve the same purpose, like e.g. processes executing the same code. Activity related monitoring data is constantly monitored to identify abnormal operating conditions. Data describing abnormal operating condition is analyzed in combination with topology data to identify networks of causally related abnormal operating conditions. Causally related abnormal operating conditions are then grouped using known topological resource and same purpose dependencies. Identified groups are analyzed to determine their root cause relevance. |
| US11252001B2 |
Mapping indication in mixed OFDM numerology
The present disclosure relates to a transmission device, a reception device, a transmission method and a reception method. The transmission device comprises a circuitry which, in operation, maps data and/or a reference signal onto a resource unit of a communication system. The resource unit includes subcarriers of a first numerology and subcarriers of a second numerology, each of the subcarriers being orthogonal to the other subcarriers of the same numerology, wherein the first numerology differs from the second numerology at least by a larger subcarrier spacing, and the subcarriers of the first and the second numerologies are frequency-multiplexed on a subcarrier basis. The transmission device further comprises a transmitter which, in operation, transmits the mapped data and/or reference signal in the resource unit, including subcarriers of the first and/or of the second numerology, and also transmits an indication of the mapping for the resource unit, which comprises references to subcarriers from the subcarriers of the first and/or the second numerology, where: for the first numerology, all subcarriers of the resource unit can be referenced, and for the second numerology, only inter-numerology-orthogonal subcarriers thereof can be referenced, each of the inter-numerology-orthogonal subcarriers being centrally aligned with a subcarrier of the first numerology. |
| US11251999B2 |
Symbol boundary detection method and processor
A symbol boundary detection method includes: calculating desired signal power according to a receiving signal by a receiver device; calculating interference power according to the receiving signal by the receiver device; calculating a signal-to-interference power ratio according to the desired signal power and the interference power by the receiver device; finding a best signal-to-interference power ratio to determine a reference symbol boundary time by the receiver device; and processing the receiving signal according to the reference symbol boundary time by the receiver device for a subsequent demodulation process performed by a demodulator circuit. |
| US11251993B2 |
Gateway apparatus, message transmission method, and program
A gateway apparatus includes: a gateway apparatus selection part configured to select a first gateway apparatus compliant with a first version of a communication protocol or a second gateway apparatus compliant with a second version of the communication protocol different from the first version of the communication protocol, the first and second gateway apparatuses being connected to a communication destination network, in such a manner that a selection rate of the first and second gateway apparatuses matches a predetermined rate; a message conversion part configured to convert a version of a message(s); and a transmission part configured to transmit a message(s) after matching the version of the communication protocol of the message(s) and the version of the communication protocol of the selected one of the first and second gateway apparatuses. |
| US11251992B2 |
Data transmission method and processing method, and device
Disclosed in the present invention are a data transmission method and processing method, and a device, which are used for improving the compression effect on an original message during tunnel transmission, wherein the data transmission method comprises: obtaining an original message to be transmitted and a current reference message, the current reference message and the original message being transmitted in the same tunnel; differentiating and compressing the original message and the current reference message to obtain an information message; encapsulating the information message by using a tunneling protocol to generate a tunnel message, the tunnel message comprising a compression information header, and the compression information header comprising a reference message identifier corresponding to the current reference message; and sending the tunnel message. With the disclosed method, each message in the same tunnel have a certain correlation. Therefore, the differentiation result obtained after the original message and the current reference message are differentiated is more regular, the information entropy thereof is smaller and a better compression effect may be obtained. |
| US11251991B2 |
Communication system, communication apparatus, communication method, and program
A communication system includes master and slave devices connectable to each other and forming a ring communication path. The master device outputs management data to manage communication along the ring communication path in a CW and CCW directions and receives the management data in the CW direction and in the CCW direction, and outputs, in the CW direction and in the CCW direction, control data to be used by the slave device to control equipment. The slave device acquires a history of transmission of the management data output from the master device and received by the slave device in the CW direction and in the CCW direction, and processes, based on the acquired history, one of the control data output from the master device in the CW direction and the control data output from the master device in the CCW direction to control the equipment. |
| US11251988B2 |
Aggregating bandwidth across a wireless link and a wireline link
Various implementations disclosed herein provide a method to aggregate bandwidth across a wireless link and a wireline link. The method includes obtaining a first set of data packets from client devices and determining whether to transmit the first set of data packets to a packet processing node. The method further includes generating a first set of adapted data packets by applying a first adaptation function. The method includes generating a first set of adapted data packets. While the first set of data packets do not satisfy a first suitability criterion, the first set of adapted data packets satisfy a first suitability criterion. The disclosed method further includes generating a first set of adapted data packets including aggregating the first set of data packets from the client devices. Finally, the disclosed method includes transmitting the first set of adapted data packets to the packet processing node. |
| US11251987B2 |
Modification of device settings based on user abilities
Provided is a method, computer program product, and system for modifying IoT device settings based on changes in user abilities. A processor may detect a plurality of IoT devices associated with one or more users. The processor may determine an ability baseline for the one or more users when interacting with the plurality of IoT devices. The processor may monitor interactions of the one or more users with the plurality of IoT devices. The processor may detect a change in the ability baseline for the one or more users when interacting with at least one IoT device of the plurality of IoT devices. In response to detecting the change, the processor may adjust one or more settings related to the at least one IoT device. The processor may propagate the adjustment to the one or more settings of the IoT device to the other IoT devices of the plurality. |
| US11251983B2 |
Meeting room reservation system and related techniques
Techniques are disclosed for integrated booking of rooms and media resources, such as display devices. An example methodology implementing the techniques includes responsive to an activation of an access Uniform Resource Locator (URL) on a computing device, receiving information associated with a booking of a room and a display device, generating a token for accessing the display device and providing to the computing device the token and an address of the display device. The method also includes, responsive to receiving the token from the display device, authenticating the token and, responsive to authenticating the token, allowing use of the display device. |
| US11251979B2 |
Control of information units for encryption
In response to receiving a login request message with a security indicator enabled for security, a storage port establishes a security association by transmitting a response indicating a login accept with the security indicator enabled for security. In response to establishing the security association, the storage port modifies a protocol behavior for transmitting and receiving information units. |
| US11251974B2 |
Provisioning multiple digital certificates
A method of provisioning a first digital certificate and a second digital certificate based on an existing digital certificate includes receiving information related to the existing digital certificate. The existing digital certificate includes a first name listed in a Subject field and a second name listed in a SubjectAltName extension. The method also includes receiving an indication from a user to split the existing digital certificate and extracting the first name from the Subject field and the second name from the SubjectAltName extension of the existing digital certificate. The method further includes extracting the public key from the existing digital certificate, provisioning the first digital certificate with the first name listed in a Subject field of the first digital certificate and the public key, and provisioning the second digital certificate with the second name listed in a Subject field of the second digital certificate and the public key. |
| US11251972B2 |
Remote control of a computing device
A method of establishing a remote control session between a first computing device and a second computing device to enable a graphical user interface of an application executed by a processor of the first computing device to be remotely controlled and viewed on the second computing device, the method implemented on the first computing device and comprising: establishing a connection with a bridging module, the bridging module external to the first computing device; performing an authentication procedure with the bridging module using the connection; establishing a secure communication channel to the bridging module on the connection; receiving, from the bridging module, an authentication request transmitted from the second computing device; in response to receiving the authentication request (i) accessing a projection certificate chain stored in a secure data store of the bridging module using the secure communication channel, (ii) generating a response including the projection certificate chain, and (iii) instructing, via the secure communication channel, the bridging module to cryptographically sign the response using a private key which is associated with the bridging module and is stored in the secure data store, and in response receiving a signature from the bridging module via the secure communication channel; and transmitting a signed authentication response to the second computing device via the bridging module to establish the remote control session, the signed authentication response comprising the projection certificate chain and the signature. |
| US11251968B2 |
Network access privacy
The present disclosure provides techniques that may be applied, for example, in a multi-slice network for maintaining privacy when attempting to access the network. An exemplary method generally includes transmitting a registration request message to a serving network to register with the serving network; receiving a first confirmation message indicating a secure connection with the serving network has been established; transmitting, after receiving the first confirmation message, a secure message to the serving network comprising an indication of at least one configured network slice that the UE wants to communicate over, wherein the at least one configured network slice is associated with a privacy flag that is set; and receiving a second confirmation message from the serving network indicating that the UE is permitted to communicate over the at least one configured network slice. |
| US11251965B2 |
Authentication tag generation apparatus, authentication tag verification apparatus, method and program
A hash function is computed for each item of a partial string obtained by dividing a message received according to a group testing matrix representing combinatorial group testing relating to the message, and an authentication tag for the partial string is generated using a value obtained by a combining operation of individual hash values by a combiner, wherein the combiner performs the combining operation of the individual hash values, by using a hash value of an item of an empty string as an identity element of the operation. |
| US11251963B2 |
Blockchain-based data authorization method and apparatus
One or more implementations of the present specification provide a blockchain-based data authorization method and apparatus. The method can include receiving, by a blockchain node, an authentication transaction submitted by a privacy computing platform, where the authentication transaction queries whether a data user has obtained authorization of target data possessed by a data owner, and in response to determining that the data user has obtained authorization of the target data, executing, by the blockchain node, a smart contract invoked by the authentication transaction to provide an authorization token to the privacy computing platform that instructs the privacy computing platform to obtain the target data, and send a computational result of one or more predetermined computational operations based on the target data to the data user. |
| US11251961B2 |
Methods and apparatuses for storing or invoking blockchain account private keys
Methods, systems and apparatus, including computer programs encoded on computer storage media, for managing account private keys of a blockchain account registered by a user. In one example, the method includes obtaining identification information provided by the user; obtaining a private key set provided by the user, wherein the private key set comprises at least one account private key of a blockchain account registered by the user; establishing and storing an association relationship between the identification information and the private key set; obtaining an encryption key provided by the user; encrypting the private key set by using the encryption key to obtain an encrypted private key set; and storing the encrypted private key set on the user device. |
| US11251957B2 |
System and method for delegating ticket authentication to a star network in the internet of things and services
A star topology network comprises a user device, a central gateway, and one or more sensor nodes added to the existing network. A communication between the user device and the central gateway is secured either based on public-key cryptography, symmetric-key cryptography, or by the use of a secure channel such as a wired communication. A request from the user device to the central gateway can be transmitted over the internet. |
| US11251956B2 |
Federated blockchain identity model and secure personally identifiable information data transmission model for RCS
According to one embodiment, providing identity authentication can comprise registering, by an identity server, Proof Of Identity (POI) information in an identity record for a user of a Rich Communications Services (RCS) network in a secure store and a hash of an identity claim token for the user in an identity management blockchain. The identity server can receive a request to authenticate the user and, in response to the request, provide an encrypted identity claim token for the user. The encrypted identity claim token can comprise an attestation of a certifying authority and, when decrypted and hashed can match the hash of an identity claim token in the identity management blockchain when the user is authentic. An authentication score indicating a degree to which received biometric data of the user and device data matches a set of baseline biometric and device date can also be provided in response to the request. |
| US11251955B2 |
System and method for simplified wifi set up of client devices
A wireless communication device for use with a communication device and a network gateway connected to the Internet, wherein the communication device can communicate with the network gateway. The wireless communication device includes: a communication component operable to communicate with the network gateway; a memory component having temporary network access credentials stored therein; and a credential feature associated with the temporary network access credentials and being accessible by the communication device. The communication component can further establish a temporary network connection with the gateway based on the temporary network access credentials, and can further join a permanent network with the gateway. |
| US11251954B2 |
Method and system for performing broadcast encryption with revocation capability
A broadcast encryption method that allows a broadcaster to send encrypted content to a set of users such that only a subset of authorized users can decrypt the content, and to perform both temporary and permanent revocation of users. Accordingly, during a Setup stage, a Key Service generates a public key and a Master Secret Key (MSK) and sends the Public Parameters PP used to generate the public key to a broadcaster and to all users. The broadcaster uses the Public Parameters PP to create a message M, with which the broadcaster encrypts the content, and further creates a Cipher Text (CT), which is sent to all users. During a Key Gen stage, whenever a user wishes to decrypt the message M for decrypting the content, the user sends a request with his ID1 to the Key Service. The Key Service generates a corresponding secret key SKID1 and the secret key SKID1 is sent to the user ID1 via a secure data channel. During a Decrypt stage, the user uses the secret key SKID1, to decrypt the Cipher Text (CT) and obtain the message M. During a Revoke stage of k users (k=1, 2, 3, . . . ) a State Update Message (SUM) which is sent to all users, is provided and each user updates his state with the SUM he received, such that the k users having identities ID1, ID2, . . . IDk will not be able to update their state and will be permanently revoked, while all the remaining users being admitted users will be able to update their state and will not be revoked. Temporary revocation is done by inserting a list of IDs (ID1, ID2, . . . IDk) to be revoked into the CT. |
| US11251952B2 |
Quantum secure clock synchronization based on time-energy and polarization entangled photon pairs
Systems and methods for quantum clock synchronization are provided. Various embodiments can use time-energy and polarization entangled photons to securely extract the absolute time difference between two remote clocks. In some embodiments, two parties can each have a source of entangled photons. Each party can detect one member of the pair locally and time stamp the detection time, while the other photon gets sent over a common channel (single optical mode) to the other party where the transmitted photon is detected and time stamped. The time stamp values can be shared over an open authenticated channel and each receiver can run a cross-correlation of the detection times. The authenticity and non-spoofability of the timing signal are ensured if each party does not just perform a simple time of arrival measurement but also incorporate polarization measurements whose joint values constitute a Bell test. |
| US11251951B2 |
Remote authentication for accessing on-premises network devices
An authentication server may not support all types of user credentials. For example, an on-premise authentication server may support credentials based on user secrets (i.e. username and password) and certificate-based credentials, but not hardware-key based credentials. A client device may use an un-supported type of credential to access resources managed by the on-premise authentication server by authenticating with a web-based authentication server. The web-based authentication server may support any type of credential, and the supported types of credentials may change over time. The web-based authentication server returns an authenticated user token indicating the user has been authenticated, but without authorizing access to any resources. The client device uses the on-premise authentication server to exchange the authenticated user token for an authorized user token. The client device then uses the authorized user token to access resources on the on-premise network. |
| US11251949B2 |
Biometric security for cryptographic system
A method of storing data allowing a seed value for generating an encryption key to be retrieved is provided. The method comprises obtaining, for each of a plurality of biological data sources, a respective set of biometric data from an authorised user. A respective biometric identifier is generated from each set of biometric data. The biometric identifiers are stored in a database. A plurality of seed portions are generated that are combinable using a function to generate the seed value. Each seed portion is stored in the database in association with a biometric identifier. |
| US11251947B1 |
Encrypted data transmission in optical- and radio-access networks based on quantum key distribution
A method for quantum-key-distribution-based encrypted data transmission in an optical/radio-access network, having a plurality of end nodes, includes, at a first node of the network: (a) via an optical quantum channel, exchanging photonic qubits with a second node, wherein the photonic qubits are processable to derive therefrom an initial key such that each of the first and second nodes have a copy of the initial key, (b) via a classical channel, exchanging a series of encrypted keys with the second node, wherein a first encrypted key is encrypted by the initial key, and each subsequent encrypted key is encrypted by a preceding encrypted key, and (c) via the classical channel, exchanging encrypted data with the second node, wherein the encrypted data is encrypted by a last encrypted key in the series of encrypted keys. One, but not both, of the first and second nodes is an end node. |
| US11251945B2 |
Secure aggregate maximum system, secure aggregate minimum system, secure computation apparatus, secure aggregate maximum method, secure aggregate minimum method, and program
An aggregate maximum is efficiently obtained while keeping confidentiality. A flag converting part (12) converts a form of a share of a flag representing a last element of a group. A flag applying part (13) generates a share of a vector in which a value of a value attribute is set if a flag representing the last element of the group is true, and a predetermined value is set if the flag is false. A sorting part (14) generates a share of a sorted vector obtained by sorting the vector with a permutation which moves elements so that the last elements of each group are sequentially arranged from beginning. An output part (15) generates and outputs a share of a vector representing a maximum of each group from the sorted vector. |
| US11251943B2 |
Sharing a secret between an isolated device and a network connected device
Methods, system and devices for sharing a secret between an isolated device connected to a network through a transmit-only unidirectional secure channel and a network connected user device, comprising generating a secret value divided to first and second components, transmitting the first component, via the unidirectional secure channel, to one or more computing nodes of a distributed system, and transferring the second component, via a tamper-resistant unidirectional insecure channel, to the network connected user device associated with the user to enable the network connected user device to reproduce the secret value by combining the first component received from one or more of the computing nodes with the second component. |
| US11251937B2 |
Distributed security mechanism for blockchains and distributed ledgers
Provided herein are exemplary systems and methods for creating a secure self-validating network of blockchain/distributed ledger participants. Some exemplary mechanisms support self-validation, mutual-validation, external-validation and privacy controls. Such mechanisms enable the deployment and continued operation of large scale blockchain and distributed ledger systems with a self-certifying security system. They create the ability for rules to be codified to control the rights, privileges and access of nodes depending on their self-certification and external-certification. Also provided is an audit trail of these certifications which can be used for liability claims, insurance, security analytics and forensics. |
| US11251936B2 |
System and method for performing homomorphic aggregation over encrypted data
A system and method for converting an input dataset based on a query received via a user interface into one or more defined range values is provided wherein the input dataset is converted into one or more defined range values based on a conversion value matrix. The present invention provides for encrypting the defined range values of the input dataset into a first cipher text matrix. Further, the present invention provides for encrypting the conversion value matrix into second cipher text matrix. The present invention provides for performing a computation operation between the first cipher text matrix and the second cipher text matrix to generate an aggregated cipher text matrix. The present invention provides for decrypting the aggregated cipher text matrix into a decrypted result matrix. The present invention provides for performing an aggregation operation by counting pre-defined digit in each column of the decrypted result matrix. |
| US11251934B2 |
Method for measuring and correcting multi-wire skew
Generating, during a first and second signaling interval, an aggregated data signal by forming a linear combination of wire signals received in parallel from wires of a multi-wire bus, wherein at least some of the wire signals undergo a signal level transition during the first and second signaling interval; measuring a signal skew characteristic of the aggregated data signal; and, generating wire-specific skew offset metrics, each wire-specific skew offset metric based on the signal skew characteristic. |
| US11251930B2 |
Control information transmission method
This application provides a control information transmission method, and relates to the field of wireless communications. The method includes: determining, by a terminal device, whether to monitor an uplink preemption indication (PI) based on whether a time-frequency resource used to transmit uplink data overlaps a reference uplink resource (RUR), to effectively avoid blind detection performed on the uplink PI by terminal devices that do not need to receive the uplink PI, and reduce overheads of blind detection performed on the uplink PI by the terminal devices. |
| US11251928B2 |
Wireless communication method, network device, and terminal device
Implementations of the present application provide a wireless communication method, a network device, and a terminal device. The network device implicitly indicates a resource scheduling mode and/or a reference signal transmission mode by means of a downlink control information format (DCI format). The method may include: sending downlink control information DCI to a terminal device by using a first DCI format among multiple DCI formats; and transmitting a data channel by using a resource scheduling mode corresponding to the first DCI format. |
| US11251921B2 |
Method for reporting channel state in wireless communication system, and apparatus therefor
A method for reporting a channel state in a wireless communication system according to an embodiment of the present disclosure, the method being performed by a terminal, and comprising the steps of: the terminal receiving a channel state reporting-related configuration with respect to a plurality of bandwidth parts (BWPs) that are performing BWP adaptation or switching; and reporting channel state information with respect to the plurality of BWPs according to the received configuration, wherein the channel state information with respect to the plurality of BWPs includes channel state information with respect to BWPs that are not activated, the plurality of BWPs include a first BWP and a second BWP of which at least a part is overlapped with the first BWP and which has a smaller size than the first BWP, the size of a sub-band of the first BWP corresponds to a multiple of the size of a sub-band of the second BWP, and the sub-band of the first BWP can completely include the sub-band of the second BWP. |
| US11251918B2 |
Apparatus and methods for wireless channel sounding
A technique of operating a wireless communication device includes receiving an assigned starting point index and an assigned reference signal bandwidth for a reference signal. The reference signal is then transmitted multiple times, beginning at an initial resource block that is associated with the assigned starting point index and in accordance with the assigned reference signal bandwidth, across a shared channel. |
| US11251914B2 |
Flexible single carrier waveforms
Methods, systems, and devices for wireless communications are described to enable a user equipment (UE) or a base station to transmit and receive single carrier (SC) waveforms (e.g., corresponding to uplink or downlink transmissions) using an SC transmission configuration. In some cases, a UE and a base station may employ an SC configuration to identify resource elements (REs) for uplink or downlink SC signals. Additionally or alternatively, the UE and the base station may employ an SC configuration with a different cyclic prefix (CP) length in order to change a base amount of REs that may be allocated for an SC transmission, where the different CP length may be either static or dynamic. The base station may transmit an indication of an SC configuration to the UE, and the UE and the base station may process corresponding SC downlink or uplink communications according to the indicated SC configuration. |
| US11251913B2 |
Methods and apparatuses for controlling a bandwidth used for processing a baseband transmit signal, receiver for a wireless communication system, and method for a receiver
A method for controlling a bandwidth used for processing a baseband transmit signal by a transmit path of a transmitter is provided. The method includes generating a first comparison result by comparing, to a threshold value, a first number of physical resource blocks allocated to the transmitter for a first transmission time interval. Further, the method includes generating a second comparison result by comparing, to the threshold value, a second number of physical resource blocks allocated to the transmitter for a subsequent second transmission time interval. The method additionally includes adjusting the bandwidth based on the first and the second comparison results. |
| US11251912B2 |
Signal transmission method, related apparatus, and system
In certain embodiments, this disclosure discloses a signal transmission method. The method may include receiving first configuration information from a network device. The first configuration information includes at least two sets of control channel parameters, and each set of the at least two sets of control channel parameters corresponds to at least one time unit. The method may include determining, based on an index of a time unit and the first configuration information, a control channel parameter corresponding to the time unit represented by the index. |
| US11251910B2 |
Method, apparatus, UE, and base station for transmitting hybrid automatic repeat request-acknowledgement information
A method, an apparatus, a UE, and a base station for transmitting a HARQ-ACK are disclosed. The method includes: determining a channel for transmitting a HARQ-ACK; determining a HARQ-ACK feedback bit; and sending the HARQ-ACK feedback bit on the channel. According to this application, transmission of a HARQ-ACK between a UE and a base station can be implemented in a scenario where carrier aggregation is performed between base stations having a non-ideal backhaul. |
| US11251907B2 |
Contention window size adaptation
Techniques for contention window size (CWS) adaptation (CWSA) are discussed. One example apparatus can comprise a processor that can receive HARQ messages UEs in response to PDSCH transmissions in one or more reference subframes. The HARQ messages can comprise HARQ-ACK values that denote a HARQ-ACK state for a transport block associated with License Assisted Access (LAA) operation, wherein each of the HARQ-ACK states is one of a DTX state, an ACK state, a NACK state, or an “any” state. The processor can also; determine a metric value for each of the HARQ-ACK states; calculate a CWS adjustment metric based on the determined metric values; increase a CWS to a next higher allowed value when the CWS adjustment metric is greater than or equal to a threshold; and reset the CWS to a minimum allowed value when the CWS adjustment metric is less than the threshold. |
| US11251905B2 |
Method for receiving code block stream, method for transmitting code block stream, and communications apparatus
A method includes: determining a target code block in a code block stream that is in a first rate mode and includes a plurality of code blocks, where the target code block includes a code block of a start type in the first rate mode; modifying information carried in a code block type field of the target code block to target information, where the target information includes information carried in a code block type field of a code block of a start type in a second rate mode; or the target information includes information carried in a code block type field of a code block of a terminate type in a second rate mode; and transmitting a code block stream in the second rate mode to a transport network, where the code block stream in the second rate mode includes a modified target code block. |
| US11251903B2 |
Method and coding apparatus for processing information using a polar code
Embodiments of this application provide an information processing method and a coding apparatus. An information bit sequence includes a K-bit information block. The information bit sequence is to be processed into an encoded bit sequence with a target code length M. For a given code rate R, when the length K of the information block is greater than a preset threshold, the information bit sequence is segmented into two or more segments. Each segment is polar encoded into an encoded subsequence. The encoded subsequence has a length that equals to a mother code length Ni, and i=1, 2, . . . , p. Each of the p encoded subsequences is rate matched to obtain a rate-matched encoded subsequence. A rate-matched encoded subsequence i of the p rate-matched encoded subsequences has a code length Mi. The p rate-matched encoded subsequences are concatenated into an encoded bit sequence which has a code length M. |
| US11251898B2 |
Device and method for the unidirectional transmission of data
A device for unidirectional transmission of data from first to second networks includes a network TAP reading data from a first subscriber of the first network to the first network and outputting read data to a second subscriber of the second network. A testing device for freedom from errors of read data includes a processor testing the read data for freedom from errors and a first digital output for a digital signal. The processor actuates the first digital output depending on the test of the read data such that the digital output outputs a first digital signal depending on the result of the test of the read data to form a feedback channel to the first subscriber by the output first digital signal to indicate the result of the test of the read data to the first subscriber. A corresponding method, network system and computer program are also provided. |
| US11251897B2 |
External network to network interface and optical express power controls
Methods, systems, and optical power controllers are disclosed. Various problems caused by the use of a single L0 power controller in the prior art are addressed by using first and second L0 power controllers with the first L0 power controller managing first optical components with the optical network, and the second L0 power controller managing second optical components within the optical network. |
| US11251892B2 |
Asynchronous non-orthogonal multiple access in a time/frequency division orthogonal multiple access network
Systems and methods are described, and one method includes allocate a continuous duration within a TDMA scheme, for asynchronous NOMA transmissions, and extending from an allocation start time to an allocation termination time, formed of contiguous time slots of the TDMA scheme, and included providing to asynchronous NOMA user terminals an indication of the allocation start time and termination time, indicating allowance to perform asynchronous NOMA transmissions within a start time constraint that starts of the asynchronous NOMA transmissions do not precede the allocation start time, and terminations of the asynchronous NOMA transmissions do not succeed the allocation termination time. |
| US11251890B2 |
Mixing apparatus and mixing method
A mixing apparatus comprises a weighting circuit configured to, within a particular control target band, perform weighting amplitude spectra of a priority audio signal and a non-priority audio signal taking frequency masking and time masking into account, an amplitude changer configured to relatively amplify an amplitude spectrum of the priority audio signal within the control target band based on the amplitude spectrum to which the weighting has been applied, a phase changer configured to make a phase spectrum of the non-priority audio signal approach a phase spectrum of the priority audio signal, within the control target band, based on the amplitude spectrum to which the weighting has been applied, and a mixer configured to mix the priority audio signal and the non-priority audio signal after the amplitude spectrum and the phase spectrum are changed. |
| US11251886B2 |
Wave shaping device, an electronic device, and a system
A wave shaping device which comprises a tunable impedance surface and a controller connected to the surface in order to control its impedance. The shaping device further comprises a transmission module for receiving a pilot signal used to control the impedance of the surface. |
| US11251884B2 |
Process based antenna configuration
Techniques for process based antenna configuration are described, and may be implemented via a wireless device to identify different usage scenarios and to adapt antenna configurations to optimize wireless performance based on the scenarios. For instance, the described techniques enable a wireless device to be calibrated for wireless communication by identifying different obstruction states of a wireless device that correspond to ways that the wireless device is held (e.g., grasped) by a user in different scenarios. The obstruction states are then correlated to antenna positions in the wireless device to prioritize (e.g., activate) antennas that are relatively unobstructed, such as by activating unobstructed antennas and/or deactivating obstructed antennas. Further, calibration can take into specific processes (e.g., applications) and specific users to calibrate an optimize wireless performance based on ways in which a user typically interacts with a process. |
| US11251883B2 |
Device and method for determination of whether a frame is a management frame or a data frame
A device comprising at least one hardware processor obtains a bandwidth for a communication from a station in a wireless network and a signal strength for the communication from the station, and determines that the communication is a communication related to network maintenance in case the bandwidth is below a first value and an expected bandwidth based on the signal strength is above a second value, and that the communication is a data communication in case the bandwidth is below the first value and the signal strength is below the second value, in case the communication is a data communication, the at least one hardware processor can determine that the station is active. |
| US11251882B2 |
Device and method for calibrating phased array antenna
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as long-term evolution (LTE). The present disclosure provides a device and a method for calibrating a phased array antenna. A method for calibrating a phased array antenna according to various embodiments of the disclosure comprises the processes of: controlling a first radio frequency (RF) chain so as to transmit a first signal at a first phase, thereby determining the phase difference between the first phase and a reference phase; controlling the first RF chain so as to transmit a second signal at a second phase, thereby determining the phase condition of the phase difference; and calibrating the first RF chain on the basis of the phase difference and the phase condition. The reference phase may be the phase of a reference signal transmitted from a reference RF chain. Accordingly, the time necessary for calibration may be reduced, and mass production of phased array antennas may be facilitated. The present research has been financed by the Korean government (Ministry of Science and ICT) in 2017 and conducted with the support of “Intra-ministry Giga Korean Project” (No. GK17N0100, Millimeter-wave 5G Mobile Communication System Development). |
| US11251879B1 |
Mobile terminal testing device and mobile terminal testing method
In a measurement device, a reception sensitivity test control unit includes drop determination means for determining whether or not a measured throughput is in a dropped state to a preset proportion in a steep drop region in which the throughput drops steeply, and output level setting means 18e for performing a setting process of setting an output level of the test signal to be different from a previous output level according to a comparison result indicating whether a throughput measurement result exceeds a predetermined threshold value and a determination result indicating whether the measured throughput is in the dropped state by the drop determination means, the setting process including a process of performing level down or level up on the output level of the test signal with respect to the previous output level in units of an error tolerance level EL when it is determined to be the dropped state. |
| US11251878B2 |
Independently routable digital subcarriers for optical communication networks
Optical network systems and components are disclosed including a transmitter comprising a digital signal processor receiving a plurality of independent data streams, the digital signal processor supplying outputs based on the plurality of independent data streams, the digital signal processor comprising a plurality of pulse shape filters corresponding to the plurality of independent data streams, the plurality of pulse shape filters configured to filter the independent data streams to produce a first subcarrier having a first frequency bandwidth and a second subcarrier having a second frequency bandwidth different than the first frequency bandwidth for the outputs. |
| US11251875B2 |
Signal sending and receiving method, apparatus, and system
An embodiment method includes: mapping a to-be-transmitted optical channel unit signal of n times a benchmark rate to X first optical channel physical link signals; adding a link sequence indicator overhead to each of the X first optical channel physical link signals, to generate X second optical channel physical link signals; and modulating and sending the X second optical channel physical link signals by using X preset optical modules in a one-to-one manner. A rate of the first optical channel physical link signal is mi times the benchmark rate, n≥2, X≥2, mi≥1, and ∑ t - 1 X m i = n . |
| US11251874B1 |
Optical redistribution layers for high-channel-count photonics
High-channel-count optical transceivers can be implemented in photonic integrated circuits (PICs) with shared lasers, splitting the light of each laser between multiple lanes prior to modulation. To reduce waveguide crossings in such PICs, transmitter and self-test functionality may be distributed between separate device layers. Various beneficial transmitter circuitry layouts are disclosed. |
| US11251873B2 |
Mitigation of atmospheric scintillation for communication
The present application is directed to an optical terminal including two linearly polarized optical transmit beams configured to exhibit a time-delay therebetween. The optical terminal may include a quarter-wave plate such that the linearly polarized transmit beam becomes circularly polarized. The optical terminal may also include a receiving ground terminal including a properly oriented quarter-wave plate for separating and directing the two recovered linearly polarized beams. The application is also directed to a method for reconstructing an originally transmitted data stream. |
| US11251870B2 |
Optical transmission system
An optical transmission system includes an optical transmitter configured to generate a plurality of optical signals encoded and modulated with the same client data being carriers with the same wavelength, and having different carrier phases, and output the plurality of generated optical signals using a plurality of optical transmitter output ports, each of the optical transmitter output ports corresponding to one of the plurality of optical signals, and one or a plurality of first directional couplers including a plurality of first input ports, each of the first input port connected to a corresponding one of the plurality of optical transmitter output ports. |
| US11251863B2 |
Protection switching method and node
The present disclosure discloses a protection switching method and a node. The method can include: receiving, by an intermediate node, a first protection switching request message sent by an upstream neighboring node, where the first protection switching request message is used to request to activate a first protection path, and the intermediate node is a node on the first protection path; determining, by the intermediate node, that the first protection path needs to occupy N1 timeslots, and selecting N1 timeslots for the first protection path from N2 available timeslots in a preset order; and sending, by the intermediate node, a second protection switching request message to the downstream neighboring node, where the second protection switching request message is used to request the downstream neighboring node to complete a cross-connection, on the first protection path, between the downstream neighboring node and the intermediate node based on the first group of timeslots. |
| US11251854B1 |
Methods and apparatuses for codebook restriction for type-II feedback reporting and higher layer configuration and reporting for linear combination codebook in a wireless communications network
Method performed by a UE for providing a channel state information (CSI) feedback in a wireless communication system including at least the UE and a gNB or a radio network node. The UE is operative to: estimate the MIMO channel between the gNB and the UE based on received DL reference signals for the configured resource blocks. The UE is further operative to calculate, based on a performance metric, a precoder matrix, for a number of antenna ports of the gNB and configured subbands, the precoder matrix being based on two codebooks and a set of combination coefficients for complex scaling/combining one or more of vectors selected from a first codebook and a second codebook, and the UE is operative to report a CSI feedback and/or a PMI and/or a PMI/RI, to the gNB, used to indicate the precoder matrix for the configured antenna ports and resource blocks. |
| US11251852B2 |
Device for calculating a received quality of reference signal
[Object] To make it possible to select a cell that is more preferable for a terminal device in an environment in which beamforming is performed.[Solution] There is provided a device including: an acquiring unit configured to acquire first received power information indicating received power of a reference signal for measurement transmitted by a target base station using a weight set for beamforming in a terminal device and second received power information indicating received power of a reference signal for measurement transmitted by another base station using a weight set for beamforming in the terminal device; and a control unit configured to calculate received quality of the reference signal transmitted by the target base station in the terminal device based on the first received power information and the second received power information. |
| US11251851B2 |
Method for reporting channel state information in wireless communication system and apparatus therefor
The present disclosure provides a method for reporting CSI in a wireless communication system. In the present disclosure, a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a UE includes: receiving, from an eNB, downlink control information (DCI) indicating activation of semi-persistent (SP) CSI reporting, in which the downlink control information is scrambled with a specific RNTI distinguished from a Cell-Radio Network Temporary Identity (C-RNTI); and reporting, to the eNB, the semi-persistent CSI through a physical uplink shared channel (PUSCH) based on the received downlink control information. |
| US11251850B1 |
Coordinated beamforming of transmitting nodes in a wireless mesh network
Apparatuses, methods, and systems for coordinated beamforming in a wireless mesh network, are disclosed. One system includes a network that includes a plurality of nodes connected through wireless links, and a controller. The wireless links including aggressor links and victim links wherein the aggressor links interfere with the victim links. The controller is operative to identify the aggressor links and the victim links of a group of nodes of the plurality of nodes, coordinate beam scans of aggressor transmitter nodes associated with the aggressor links, coordinate reception of one or more victim receive nodes associated with the victim links, characterize or receive characterizations of measured interference at the one or more victim receive nodes during the coordinated beam scans, and select beamforming coefficients for the aggressor transmitter nodes based at least on the characterizations of the measured interference. |
| US11251849B2 |
Iterative multi-beam selection with uplink-downlink beam training
Methods, systems, and devices for wireless communications are described. A first device may transmit, to a second device, reference signals using combinations of analog beamforming parameters over multiple cycles. The reference signals may be transmitted for different combinations of transmit beamforming parameters and receive beamforming parameters over different cycles of the multiple cycles. The first device may receive, from the second device over the multiple cycles, a set of reports. Each report may indicate combinations of analog beamforming parameters selected for the analog beamforming parameters at the second device. Each combination of analog beamforming parameters may correspond to different cycles of the multiple cycles. The first device may set, for each radio frequency (RF) chain of a plurality of RF chains associated with the first device, a corresponding combination of analog beamforming parameters, and communicate with the second device via two or more beams based on the setting. |
| US11251845B2 |
Channel information sending method, data sending method, and device
A channel information sending method, a data sending method, and a device are provided, to improve feedback precision of a precoding matrix. These include a receiver that receives a reference signal and a memory, configured to store at least one computer instruction which, when executed by the processor, cause the processor to measure the reference signal from the receiver to obtain first channel information and second channel information and send the first channel information and the second channel information to the second device. In some embodiments, the first channel information comprises identification information of N antenna ports in M antenna ports for the reference signal, M is an integer not less than 2, and N is a positive integer not greater than M, the second channel information comprises information about a weighted combination factor used for performing weighted combination on the N antenna ports, the weighted combination factor comprises an amplitude factor and a phase factor, and the first channel information and the second channel information are used to constitute a precoding matrix. |
| US11251836B2 |
Apparatus and methods for multi-antenna communications
Apparatus and methods for multi-antenna communications are provided. In certain embodiments, a communication system includes an antenna array including a plurality of antenna elements, and a plurality of RF circuit channels each coupled to a corresponding one of the antenna elements. The plurality of RF circuit channels generate two or more analog baseband signals in response to the antenna array receiving a radio wave. The communication system further includes a controllable amplification and combining circuit that generates two or more amplified analog baseband signals based on amplifying each of the two or more analog baseband signals with a separately controllable gain, and that combines the two or more amplified analog baseband signals to generate a combined analog baseband signal. |
| US11251835B2 |
Technique for performing power level control of beams transmitted by a wireless transmission device
A technique for performing power level control of one or more beams transmitted by a wireless transmission device to a wireless reception device is disclosed. A method implementation of the technique is performed by the wireless transmission device and comprises transmitting (S202) each of the one or more beams at a default power level of the respective beam, detecting (S204) an obstacle entering the one or more beams based on a change in an electromagnetic environment associated with the one or more beams, the obstacle, once entered, at least partially blocking the one or more beams with respect to the wireless reception device, and decreasing (S206), for each of the one or more beams, an output power of the respective beam from the default power level of the respective beam to a predetermined threshold power level of the respective beam. |
| US11251832B2 |
Multiple clock sampling for Nyquist folded sampling receivers
Nyquist folding receivers (NYFRs) are disclosed that use three or more non-modulated sampling clock signals with different frequencies to produce multiple projections in a sampled output. Using these three or more different sampling clock signals, multiple Nyquist zones are aliased together while still allowing signals from different Nyquist zones to be separated and identified in later processing based upon the sampling provided by the different sampling clock signals. NYFR sampling receivers are also disclosed that simultaneously produce multiple separate and different parallel channels from an input signal, with each different channel having a different sampling clock sampling rate from the other channels so as to generate a respective folding pattern that is different from the folding pattern generated by the respective RF sampling rate of each of the other simultaneous and parallel channels. A particular signal may be separated and identified by matching it to the respective different folding patterns in each of the simultaneous multiple different parallel channels. |
| US11251830B2 |
Measurements for frequency hopping systems
A method (1100) in a wireless device (110) comprises identifying (1104) a configuration of a coordinated measurement occasion. The method comprises, during the coordinated measurement occasion (530, 630, 710, 830, 930), performing (1108) one or more measurements with respect to a plurality of reference signals transmitted from different cells (125, 515, 520, 525, 615, 620, 625, 715, 720, 725, 815, 820, 825, 915, 920, 925), in accordance with the identified configuration, wherein: each of the different cells is associated with at least one of the plurality of reference signals; and the configuration defines a common time interval and one or more common frequencies for the different cells to transmit their respective associated reference signal during the coordinated measurement occasion. |
| US11251829B2 |
Radio frequency module
A radio frequency module is provided. A matching circuit includes an inductor which is connected in series to the power amplifier and is formed in a substrate. The substrate includes a ground layer, a low permittivity portion, and a high permittivity portion. The ground layer at least partially overlaps with a first input terminal of the low-noise amplifier in a plan view from a thickness direction of the substrate. The low permittivity portion at least partially overlaps with the first input terminal in a plan view from the thickness direction, and is provided between the first input terminal and the ground layer. The high permittivity portion is in contact with the inductor and has the permittivity greater than the permittivity of the low permittivity portion. |
| US11251828B2 |
Network routing device, network data transmission method, and network access device
A network routing device, a network data transmission method, and a network access device. The network routing device's first network transmission processing module is configured to convert a received data signal into at least two baseband signals, send one baseband signal to a first radio frequency unit, and send another baseband signal to a first wired communication module. The first radio frequency unit converts the baseband signal into a radio frequency signal and sends the radio frequency signal by using a first antenna, and the first wired communication module converts the baseband signal into a network signal that can be transmitted in a wired transmission medium and sends the network signal to the wired transmission medium for transmission. According to the network routing device, a signal can be transmitted in both a wired manner and a wireless manner. This improves signal transmission reliability. |
| US11251821B1 |
Click noise excision
A radio receiver system configured to remove click noise from a demodulated signal is disclosed. The radio receiver system may employ digital demodulation or analog demodulation. The radio receiver system may be configured to determine measures of a statistical distribution of amplitudes of the demodulated signal, and thresholds for limiting the demodulated signal based on the measures of the statistical distribution of amplitudes. Portions of the demodulated signal exceeding the thresholds are either soft limited or hard limited. |
| US11251815B2 |
Decoding circuit and decoding method based on Viterbi algorithm
A decoding circuit and a decoding method based on the Viterbi algorithm are provided. The decoding method includes the following steps: decoding an encoded data based on the Viterbi algorithm to generate a decoded data; performing error correction on the decoded data to obtain a data content of the encoded data; comparing the decoded data and the data content to generate bit correction information; using the encoded data to calculate multiple first branch metrics based on the Viterbi algorithm, the first branch metrics corresponding to a target bit of the data content; adjusting at least one of the first branch metrics based on the data content and the bit correction information to generate multiple second branch metrics; and selecting the first branch metrics or the second branch metrics based on the bit correction information. |
| US11251813B2 |
System and method for processing control information
A system and method for allocating network resources are disclosed herein. In one embodiment, the system and method are configured to perform: determining a redundancy version and a new data indicator indicated by control information; determining a base graph of a low density parity check code based on which of a plurality of predefined conditions the redundancy version, and/or the new data indicator satisfy; and sending a signal comprising information bits that are encoded based on the determined base graph of the low density parity check code. |
| US11251808B2 |
Image decoding device
An input control unit collectively sends a plurality of pieces of variable length code data. A primary analysis processing unit processes a first piece of variable length code data, recognizes zero run information, group number information, and overhead bit information relating thereto, and outputs them to a frequency conversion unit. A continuous analysis processing unit processes one or more pieces of variable length code data subsequent to the first piece of variable length code data. In the case of variable length code data targeted for a predetermined process, the continuous analysis processing unit recognizes zero run information, group number information, and overhead bit information relating thereto, and output them to the frequency conversion unit. In the case of not the variable length code data targeted for the predetermined process, the continuous analysis processing unit discards this and subsequent pieces of data. |
| US11251801B2 |
Frequency adjusting apparatus and frequency adjusting method
A frequency adjusting apparatus used in a processing chip operated at an operation frequency according to a power is provided that includes a clock supplying circuit, a frequency division circuit and a control circuit. The clock supplying circuit outputs one of clock signals as a supplied clock signal. The frequency division circuit performs frequency division on the supplied clock signal according to a parameter to generate an output clock signal. The control circuit determines a combination of a selected clock signal and a value of the parameter for gradually increasing the frequency of the output clock signal during the increasing of the voltage value that passes through voltage value sections, wherein when the voltage value is determined to be larger than a second threshold value and when the voltage value sections correspond to higher voltage values, the selected clock signal has a higher frequency. |
| US11251799B2 |
Connection interface circuit, memory storage device and phase-locked loop circuit calibration method
A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and calibrating an electrical parameter of the phase-locked loop circuit according to a variation of a time difference between the first signal and the third signal. |
| US11251796B2 |
Phase lock circuitry using frequency detection
A phase-locked loop (PLL) circuit is configured to adjust a value of a bias voltage based on a comparison between a reference clock signal and a feedback clock signal, and an oscillator circuit is configured to provide the feedback clock signal and phase-shifted clock signals based on a value of the bias voltage. A frequency detector of the frequency detector is configured to cause an adjustment to the value of the bias voltage in response to detection of a frequency deviation between the reference clock signal and the feedback clock signal. To avoid a metastable state, the frequency detector is configured to apply an asynchronous delay to one of the reference clock signal or the feedback clock signal prior to detection of the frequency deviation. |
| US11251794B2 |
Dynamic transistor gate overdrive for input/output (I/O) drivers and level shifters
An apparatus for generating an output voltage signal based on an input voltage signal. The apparatus includes a first field effect transistor (FET) including a first gate configured to receive a first gate voltage based on the input voltage signal; a second (FET) including a second gate configured to receive a second gate voltage based on the input voltage signal, wherein the first and second FETs are coupled in series between a first voltage rail and a second voltage rail, and wherein the output voltage signal is produced at an output node between the first and second FETs; and a gate overdrive circuit configured to temporarily reduce the first gate voltage during a portion of a transition of the output voltage signal from a logic low level to a logic high level. |
| US11251791B2 |
Microfluid detection device, system and method, processing device and storage medium
Disclosed are a microfluid detection device, system and method, a processing device and a storage medium, in the field of biochemistry. The device includes a first substrate and a second substrate facing each other, and a microfluid chamber between the first substrate and the second substrate; wherein the first substrate has a plurality of photoelectric sensors and an output circuit, each of the photoelectric sensors is configured to convert an optical signal passing through the second substrate and the microfluid chamber to an electrical signal, and the output circuit is configured to output the electrical signal obtained by the photoelectric sensor. |
| US11251790B2 |
Power relay assembly for an electric vehicle and driving method thereof
A power relay assembly for an electric vehicle and a driving method thereof according to an embodiment of the present invention connect the first switching unit and the second switching unit connected in series with each other in parallel with the relay switch, and by allowing the first switching unit and the second switching unit to include semiconductor switching elements and diodes therein, not only when power is supplied from the battery to the load side, but also when charging is performed by supplying a charging current to the battery, it is possible to supply or cut off power while preventing sparks and arcs at the relay contact point. |
| US11251789B1 |
Instability management in a signal driver circuit
A method of operating a driver circuit includes receiving a data signal at a first input of an amplification circuit; amplifying, using the amplification circuit, the data signal to produce an output signal through an output pin; attenuating, using a feedback network, the output signal to produce a feedback signal; coupling the feedback signal to a second input of the amplification circuit; detecting, using a control circuit, a fault condition; and decoupling, responsive to detecting the fault condition, the feedback signal from the second input of the amplification circuit. In some embodiments, the driver circuit transmits a fault condition signal to an electronic control unit of an automobile. |
| US11251786B1 |
Supply-to-digital regulation loop
A supply-to-digital regulation loop (SDRL) circuit, including a reference supply circuit and a local supply circuit. The reference supply circuit includes a reference supply-to-digital converter (SDC) to convert an analog reference supply voltage to a digital reference signal. The local supply circuit is coupled to the reference supply circuit. The local supply circuit includes a local SDC to convert an analog local supply voltage to a digital local supply signal based on a digital feedback signal, and a local monitoring circuit to monitor the digital feedback signal based on a comparison of the digital local supply signal with the digital reference signal routed from the reference SDC of the reference supply circuit. |
| US11251785B1 |
Spurious components reduction
An integrated circuit includes a first input port configured to receive a supply voltage from a switched-mode power supply (SMPS), where frequency components of the supply voltage include harmonics of a reference frequency, where the reference frequency is equal to a first frequency divided by a factor; and a spurious components cancellation circuit coupled to the first input port, where the spurious components cancellation circuit is configured to: generate a first clock signal having the reference frequency; adjust an amplitude and a phase of the first clock signal to form a compensation signal; and add the compensation signal to the supply voltage to produce a modified supply voltage with reduced frequency components at one or more harmonic frequencies of the reference frequency. |
| US11251784B2 |
Programmable-on-the-fly fractional divider in accordance with this disclosure
A divider circuit includes a subtract-by-two circuit receiving MSBs of an input and producing a subtracted-by-two output, a subtract-by-one circuit receiving the MSBs and producing a subtracted-by-one output, a first multiplexer passing the subtracted-by-two or the subtracted-by-one output based on a first control signal, a second multiplexer passing output of the first multiplexer or the MSBs based on a second control signal to produce an asynchronous divisor. An asynchronous one-shot N+2 divider divides an input clock by the asynchronous divisor to produce a first divided signal. An output flip-flop receives the first divided signal and is clocked by an inverse of the input clock to produce a second divided signal. A third multiplexer passes the first divided signal or the second divided signal in response to a select load signal to produce a multiplexer output. A divider divides the multiplexer output by a set divisor to produce an output clock. |
| US11251777B2 |
Acoustic wave filter device and multiplexer
An acoustic wave filter device includes a piezoelectric layer, a high-acoustic-velocity member, a low-acoustic-velocity film between the high-acoustic-velocity member and the piezoelectric layer, and first and second IDT electrodes on the piezoelectric layer to define acoustic wave resonators. An acoustic wave resonator of a series-arm resonator portion closest to an antenna end and/or an acoustic wave resonator of a parallel-arm resonator portion closest to the antenna end includes the first IDT electrode including first and second electrode fingers, and the remaining acoustic wave resonators include the second IDT electrode including third and fourth electrode fingers. In the first IDT electrode, a central area, first and second low-acoustic-velocity areas, and first and second high-acoustic-velocity areas extend along a direction perpendicular or substantially perpendicular to an acoustic wave propagating direction. First and second envelopes connecting the tips of the third and fourth electrode fingers of the second IDT electrode are inclined. |
| US11251773B2 |
AT-cut crystal element, crystal unit, and semi-manufactured crystal unit
An AT-cut crystal element includes a vibrator and a supporting portion. The vibrator has a planar shape with an approximately rectangular shape. The supporting portion is connected to one short side of the vibrator and has a thickness thicker than a thickness of the vibrator. The AT-cut crystal element has an oscillation frequency of approximately 76 Mhz. The vibrator has a distal end portion that is an end portion on a side opposite to the supporting portion. The distal end portion is formed to have a protrusion shape toward a distal end side thereof. The vibrator has both ends formed to have a protrusion shape toward an outside direction along the short side. The vibrator has a long side dimension L and a short side dimension W. A W/L is in a range of 0.74 to 0.79 or in a range of 0.81 to 0.93. |
| US11251770B2 |
Crystal device and electronic apparatus using this crystal device
A crystal device includes a rectangular shaped substrate, a mounting frame which is along an outer circumferential edge of a lower surface of the substrate on its short-side sides and configures a recessed part, electrode pads on an upper surface of the substrate, connection pads on the lower surface of the substrate in the mounting frame, a crystal element mounted on the electrode pads, a temperature sensing element mounted on the connection pads, and a lid air-tightly sealing the crystal element. The electrode pads and the recessed part do not overlap in a plane perspective view. |
| US11251769B2 |
Bulk acoustic wave components
Aspects of this disclosure relate to bulk acoustic wave components. A bulk acoustic wave component can include a substrate, at least one bulk acoustic wave resonator on the substrate, and a cap enclosing the at least one bulk acoustic wave resonator. The cap can include a sidewall spaced apart from an edge of the substrate. The sidewall can be 5 microns or less from the edge of the substrate. |
| US11251767B2 |
Bulk acoustic resonator and filter including the same
A bulk acoustic resonator includes: a substrate including an upper surface on which a substrate protection layer is disposed; and a membrane layer forming a cavity together with the substrate, wherein a thickness deviation of either one or both of the substrate protection layer and the membrane layer is 170 Å or less. |
| US11251765B2 |
Adaptive tuning networks with direct mapped multiple channel filter tuning
A flexible multi-path RF adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled RF band filters, particularly in a Carrier Aggregation-based (CA) radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path RF switch in order to provide adaptive impedance matching for various combinations of RF band filters. Optionally, some or all RF band filters include an associated digitally-controlled filter pre-match network to further improve impedance matching. In a second version, some or all RF band filters coupled to a multi-path RF switch include a digitally-controlled phase matching network to provide necessary per-band impedance matching. Optionally, a digitally-controlled tunable matching network may be included on the common port of the multi-path RF switch to provide additional impedance matching capability. In a third version, CA direct mapped adaptive tuning networks include filter tuning blocks for selected lower frequency bands. |
| US11251761B1 |
Operational amplifier with reduced input capacitance
An operational amplifier includes a first transistor, a second transistor, a third transistor, a first constant current source, an output state, a first switch, and a second switch. The first transistor has a first gate configured to receive an output voltage from an output node. The second transistor has a second gate. The third transistor has a third gate configured to receive an input voltage. The first constant current source is coupled to sources of the first transistor, the second transistor, and the third transistor. The output stage is configured to drive the output voltage on the output node based on a first current through the first transistor, a second current through the second transistor, and a third current through the third transistor. The first switch is coupled between the second gate of the second transistor and the third gate of the third transistor; and the second switch is coupled between the output node and the second gate of the second transistor. |
| US11251759B2 |
Operational amplifier input stage with high common mode voltage rejection
An apparatus has four transistors. The first and third transistors each have a gate coupled to a first input terminal and second input terminal respectively, a source coupled to a current source and to a first terminal of a bias voltage source, and a substrate coupled to a second terminal of the bias voltage source. The second and fourth transistors each have a gate coupled to the first input terminal and the second input terminal respectively, a source coupled to the drain of the first and third transistors respectively, a drain coupled to a lower voltage supply and a substrate coupled to its source. The bias voltage source increases the threshold voltages of the first and third transistors above the second and fourth transistors, respectively. This ensures that the first and third transistors turn on after the second and fourth transistors, respectively. |
| US11251756B2 |
Reconfigurable radio frequency (RF) interference signal detector with wide dynamic range transceiver module
A reconfigurable power detector is described. The reconfigurable power detector includes a first power detector circuit. The first power detector circuit includes a pair of coupled first-type transistors to switch a first-type positive output and a first-type negative output. The reconfigurable power detector includes a second power detector circuit. The second power detector circuit includes a pair of coupled second-type transistors to switch a second-type positive output and a second-type negative output. The reconfigurable power detector includes a switch matrix. The switch matrix includes switches to select the second-type positive output and the second-type negative output in a first configuration, the first-type positive output and the first-type negative output in a second configuration, and the first-type positive output and the second-type positive output in a third configuration. The reconfigurable power detector also includes a configuration block to program the switches to select an output configuration at a detector output. |
| US11251749B2 |
Methods and systems for fault detection, diagnosis and localization in solar panel network
Various fault types occurring at multiple possible locations in the solar panel network are simulated using the network simulation model. The dataset covering multiple fault scenarios and multiple no-fault scenarios is determined for training the CNN model. The fault scenarios include one fault type alone at particular location or multiple locations, as well as multiple fault types at multiple locations. The fault types include a short circuit fault, an open circuit fault, a shading fault, a soiling fault, a hot-spot fault, an arc fault, a degradation fault, and a clipping fault, the short circuit fault comprises a line-line fault, and a line-ground fault The convolutional neural network (CNN) model is trained with fault datasets and no-fault datasets covering various fault sensors and no-fault scenarios to generate the FDDL model. The fault datasets and no-fault datasets are determined based on the network simulation model of the solar panel network. |
| US11251748B2 |
Solar module mounting bracket assemblies
A solar module mounting bracket assembly includes a rail configured to support a solar module thereon, and a pair of braces. The braces each have a first end portion movably coupled to the rail. The braces are movable relative to the rail between a collapsed configuration and an expanded configuration. In the expanded configuration, the braces cooperatively define a channel dimensioned for receipt of a frame member. |
| US11251747B2 |
Photovoltaic module mounting system
A photovoltaic mounting system including a photovoltaic module having a panel having an upper surface including a plurality of photocells and an opposed bottom surface, the module being bounded by a perimeter edge. A mounting frame is secured to the bottom surface of the module. The mounting frame is offset from each of the perimeter edges of the module. The mounting frame includes an upper surface secured to the module and an opposed lower end having a mounting projection. |
| US11251746B2 |
Staged stowage of solar trackers and method thereof
Methods and systems of managing dynamic response to wind in a solar tracker system are provided. The method includes determining a wind speed, comparing the wind speed to a predetermined threshold value to determine if the wind speed equals or exceeds the predetermined threshold, positioning a windward most solar tracker to a predetermined angle based on the comparing, and positioning a leeward most solar tracker to the predetermined angle based on the comparing. The solar trackers are positioned at the predetermined angle at a predetermined interval starting at the windward most solar tracker and the remaining solar trackers remain in a normal operating condition. |
| US11251744B1 |
Photovoltaic shingles and methods of installing same
A system includes a plurality of photovoltaic shingles installed on a roof deck, each of the shingles having a first layer including a head lap portion, and a second layer including at least one solar cell. A first photovoltaic shingle overlays at least a part of the head lap portion of a second photovoltaic shingle. The system includes at least one wireway installed proximate to a first end of at least the first photovoltaic shingle. |
| US11251742B2 |
Damping torsional oscillations in a drive system
A drive system includes at least one electrical machine and a plurality of rotating components, which are interconnected via shafts. A method for damping torsional oscillations in the drive system includes: determining angular speeds for at least one of the shafts based on measurements in the drive system; determining a damping torque from the angular speeds with a function that models at least some of the electrical machine, the rotating components and the shafts; adapting a reference torque for the at least one electrical machine by adding the damping torque; and controlling the at least one electrical machine with the adapted reference torques. |
| US11251739B2 |
Vehicle driving device
A vehicle driving device includes an inverter which drives a motor. The inverter includes: a three-phase bridge circuit including a plurality of switching elements; a three-phase short circuit which short-circuits three phases of the motor via the three-phase bridge circuit; and a control circuit. The control circuit includes: a microprocessor which drives the three-phase bridge circuit; a malfunction notification circuit which outputs a malfunction notification signal when the microprocessor is malfunctioning; and a latch circuit which holds the malfunction notification signal outputted from the malfunction notification circuit. The control circuit outputs a three-phase short-circuit drive signal which drives the three-phase short circuit, based on the malfunction notification signal held by the latch circuit. |
| US11251735B2 |
Control device for an inverter
A control device for an inverter has a first inverter terminal, a second inverter terminal and a plurality of bridge branches, which bridge branches each comprise a first semiconductor, a winding terminal and a second semiconductor switch. The winding terminals are connected to a winding arrangement. The control device is configured to output a control signal which enables a first bridge branch state and a second bridge branch state in the case of at least two of the bridge branches in a first operating state, wherein, in the first bridge branch state, the second semiconductor switch assigned to the bridge branch is switched on, and wherein, in the second bridge branch state, the second semiconductor switch assigned to the bridge branch is switched off. At least two of the bridge branches are occasionally simultaneously in the first bridge branch state, and a change of said at least two bridge branches into the second bridge branch state is subsequently carried out at different points in time. |
| US11251729B2 |
Device and method for over-current protection
An over-current protection device for a power generator includes a first pin, configured to receive a signal; a detection and control module, coupled to the first pin, and configured to detect the signal to determine whether the signal conforms to a pre-determined condition or not, and to output a control signal when the signal conforms to the pre-determined condition; and an auto-trim and memory module, coupled to the detection and control module, and configured to receive the control signal from the detection and control module for executing corresponding auto-trim measurements and storing corresponding adjustment data. |
| US11251728B2 |
Driving circuit and driving method of stepping motor and electronic machine using the same
A back electromagnetic force detection circuit detects a counter EMF generated in a coil of a stepping motor. A revolution count detection circuit generates a revolution count detection signal. A determining circuit generates a determination signal that is asserted if the revolution count detection signal is stable across multiple consecutive cycles. A current value setting circuit generates a current setting value indicating a target value of a coil current. The current value setting circuit sets the current setting value to a predetermined value in a period in which the determination signal is negated, and adjusts the current setting value according to the counter EMF in a period in which the determination signal is asserted. A constant current chopper circuit generates a pulse modulation signal that modulates by way of having a detection value of a coil current approach close to a target value of the current setting value. |
| US11251725B2 |
Electronic braking system for an irrigation machine
The present invention provides an electronic braking system for an irrigation machine. According to an exemplary preferred embodiment, the present invention includes a drive controller which includes a power supplying circuit which signals an ON condition when a motive power request is input into the drive controller and an OFF condition when motive power is not input into the system. According to a further preferred embodiment, the present invention further includes a 3-phase induction motor connected to apply torque to a drive shaft which is connected to a least one drive wheel. According to a further preferred embodiment, the power supplying circuit supplies 480V AC of motive power to the drive motor when the drive controller signals the ON condition and 10-80V DC of non-motive power to at least one phase of the motor when the drive controller signals the OFF condition. According to a further preferred embodiment, the application of the DC current is applied immediately after the motive power is removed from the drive motor and the application of non-motive power brakes and prevents the drive shaft from turning until the DC current is removed. |
| US11251723B2 |
Systems for driving the generation of products using quantum vacuum fluctuations
Described herein are systems incorporating a Casimir cavity, such as an optical Casimir cavity or a plasmon Casimir cavity. The Casimir cavity modifies the zero-point energy density therein as compared to outside of the Casimir cavity. The Casimir cavities are paired in the disclosed systems with product generating devices and the difference in zero-point energy densities is used to directly drive the generation of products, such as chemical reaction products or emitted light. |
| US11251722B2 |
Converter scheme
A converter scheme (30) comprises a plurality of poles and a plurality of converters (32), the plurality of poles (60,62,64) including at least one positive pole (60), at least one negative pole (62) and a neutral pole (64), the plurality of converters (32) including at least one first converter (32a) and at least one second converter (32b), the or each first converter (32a) connected to the neutral pole (64) and the or the respective positive pole (60), the or each first converter (32a) operable to control a converter voltage across the neutral pole (64) and the corresponding positive pole (60), the or each second converter (32b) connected to the neutral pole (64) and the or the respective negative pole (62), the or each second converter (32b) operable to control a converter voltage across the neutral pole (64) and the corresponding negative pole (62), wherein the converter scheme (30) includes a controller (36) programmed to perform a voltage control mode when there is an imbalance between power or current levels of the positive and negative poles (60,62) and when the neutral pole (64) is at a non-zero potential, the controller (36) programmed to perform the voltage control mode to operate each converter (32a,32b) to control the corresponding converter voltage so that a pole-to-ground voltage of the corresponding positive or negative pole (60,62) is equal to or lower than a voltage rating of the corresponding positive or negative pole (60,62). |
| US11251721B2 |
Power supply device, driving device, control method, and storage medium
A power supply device is provided with an output unit, an input unit, a rectifier circuit, a switching circuit, and a controller. The input unit inputs an AC input. The rectifier circuit has a smoothing capacitor and converts the AC input into a rectified output. The switching circuit switches between an ON-state in which input impedance is low and an OFF-state in which input impedance is higher than that in the ON-state. The controller sets a modulation ratio such that, when controlling the switching circuit to switch between the ON-state and the OFF-state, at least a portion of a period, in which the modulation width of the modulation duty ratio becomes maximum, is included in a period from a time when an input current inputted to the smoothing capacitor is generated to a time when the voltage of the smoothing capacitor reaches a maximum value. |
| US11251715B2 |
Synchronous rectification control circuit, control method, power supply system, electronic apparatus, electric vehicle, and electric power system
A synchronous rectification control circuit includes a first drive unit that outputs a signal for controlling turning on/off of a synchronous rectification element disposed on a secondary side, a second drive unit that performs control to make a voltage between both ends of the synchronous rectification element equal to a predetermined threshold voltage during a predetermined period during which a rectification current flows on the secondary side, and a drive switching unit that selectively supplies an output from the first drive unit and an output from the second drive unit to the synchronous rectification element. |
| US11251713B2 |
Multiple parallel-connected resonant converter, inductor-integrated magnetic element and transformer-integrated magnetic element
A multiple parallel-connected resonant converter, an inductor-integrated magnetic element and a transformer-integrated magnetic element are provided. The multiple parallel-connected resonant converter includes a first and a second converters. The first converter having a first input and output end includes a first inductor, a first transformer and a first capacitor connected in series. The second converter having a second input and output end includes a second inductor, a second transformer and a second capacitor connected in series. The second output end is connected with the first output end in parallel. The first and second inductor are integrated in a first magnetic element, the first magnetic element includes a first and second side column, and a first and second central column. The first inductor includes a first coil positioned around the first central column and the second inductor includes a second coil positioned around the second central column. |
| US11251712B2 |
Power supply circuit, power supply device and control method
Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, a current feedback unit and a current sampling control unit. The power supply circuit removes a liquid electrolytic capacitor at a primary side, and an output current of the power supply circuit has a periodically changing current value. The power supply circuit may determine when the output current is at a peak value based on a feedback voltage outputted by the current feedback unit, such that the power supply circuit may manage and control a size of the peak value of the output current. |
| US11251708B2 |
Inverting switching regulator using charge pump and operating method thereof
An inverting switching regulator is provided. The inverting switching regulator is used to generate a negative output voltage based on a positive input voltage. The inverting switching regulator includes an inductor configured to pass an inductor current from a first terminal to a second terminal; a flying capacitor coupled to the second terminal of the inductor; and a plurality of switches configured to apply a negative voltage to the second terminal of the inductor by charging the flying capacitor by the positive input voltage during a first phase, and by connecting the flying capacitor in series to a ground node and the inductor during a second phase. |
| US11251702B2 |
Boost converter with forced continuous conduction mode
A method may include operating a DC-DC switch converter in a forced continuous conduction mode in which for each switching cycle of the switch converter during the forced continuous conduction mode, the switch converter operates in a series of phases including: a first phase in which an inductor current flowing in an inductor of the switch converter increases from zero to a controlled positive current magnitude with respect to a first terminal and a second terminal of the inductor; a second phase in which the inductor current decreases from the controlled positive current magnitude to approximately zero; a third phase in which the inductor current decreases from approximately zero to a controlled negative current magnitude with respect to a first terminal and a second terminal of the inductor; and a fourth phase in which the inductor current increases from the controlled negative current magnitude to approximately zero. |
| US11251700B2 |
Voltage regulation circuit of single inductor and multiple outputs and control method
A voltage regulation circuit can include: a power stage circuit with a single inductor and a plurality of output circuits; each output circuit having an output control switch configured to control a duration of an on time of the output circuit, and an output switch control circuit configured to control the output control switch in accordance with an output voltage sampling signal, a reference current signal that represents an output current of the output circuit, and a clock signal, in order to maintain an output voltage of the output circuit as constant and to decrease interference from load variations of any other of the plurality of output circuits; and where the output control switches are controlled to be on in sequence in each switching period. |
| US11251699B2 |
Relay and battery system including the same
A relay including a relay coil and a relay switch. The relay coil including a coil beginning and a coil end and being connected to a relay driving circuit. The relay switch being arranged in a load circuit. A first parasitic capacitance between the coil beginning and the relay switch is different than a second parasitic capacitance between the coil end and the relay switch. |
| US11251698B2 |
Power factor correction circuit
A power factor correction circuit includes an input power source, a first bridge arm, a second bridge arm, an output capacitor and an active clamp unit. The first bridge arm includes a first switch and a second switch in series. The second bridge arm includes a third switch and a fourth switch in series. The active clamp unit includes a second inductor, a clamp capacitor and a fifth switch. The power factor correction circuit may realize the ZVS function of the first switch and the second switch by the collaboration of the active clamp unit and the conduction/non-conducting state of the first switch, the second switch, the third switch and the fourth switch. |
| US11251690B2 |
Systems, methods, and apparatus for dead-time control in resonant converters
Methods and systems for controlling an output voltage of a resonant converter during a light load condition. One such method includes generating a normalised conduction time of the resonant converter that varies inversely with a switching frequency of the resonant converter by continuing to operate the resonant converter in a Pulse Frequency Modulation mode at a low switching frequency that is similar to the resonant frequency. The method also includes controlling a power level delivered to a secondary winding of a transformer positioned between a resonant tank and an output rectifier of the resonant converter by regulating the normalised conduction time, where the delivered power level is variable based on load conditions. The method further includes generating an output voltage using the output rectifier wherein the magnitude of the output voltage corresponds to the power level delivered to the secondary winding. |
| US11251688B2 |
Field-winding-type rotating electric machine
In a rotating electric machine, a stator includes a stator winding, a field winding includes a series-connection body including a plurality of winding portions, and a rotor includes main pole portions protruding from a rotor core in a radial direction. A harmonic current for inducing a field current in the field winding flows to the stator winding. A rectifying element is connected in series to the field winding, configures a closed circuit with the field winding, and rectifies the field current that flows to the field winding to flow in one direction. In a capacitor, a first end is connected to a connection point between adjacent winding portions and a second end is connected to either of both ends of the rectifying element. A partitioning portion is disposed between at least a single set of adjacent winding portions among the plurality of winding portions and includes a magnetic material. |
| US11251686B2 |
Radially oriented solid cylindrical magnet and production method and device thereof
The present disclosure provides a radially oriented solid cylindrical magnet, a method and device for molding and manufacturing the same, and a rotor and motor component using the same. The radial orientation degree of the solid cylindrical magnet is greater than or equal to 90%. A mold includes no mold core. Magnetic particles in the mold are continuously rotated in a magnetic field during molding, and an oriented magnetic field is applied during molding. The manufactured solid cylindrical magnet can be directly used as a rotor of a micro-motor to replace a conventional rotor with a radially oriented magnet ring, or can be used for producing radially oriented magnet rings with an arbitrary inner diameter, so as to obtain radially oriented magnet rings having an inner diameter less than 3 mm or even less for micro-motors. |
| US11251683B2 |
Coreless rotating electrical machine for being operated under load exceeding rating, driving method thereof, and driving system including thereof
A coreless rotating electrical machine for being operated under load exceeding rated load, driving method thereof, driving system including thereof; coreless rotating electrical machine for being operated under load exceeding rated load, driving method thereof, driving system including thereof, in which air space including air gap is formed by stator consisting of lid-type mount which fixes end face of energizable coreless cylindrical coil and rotor consisting of cylindrical mount or cup-type mount opposingly and rotatably positioned to lid-type mount with plurality of magnets equipped on inner surface of cylindrical or cup-type mount, wherein when load exceeds the rating, operation is enabled by adjusting supply amount of refrigerant liquid so the temperature of cylindrical coil does not exceed allowable maximum temperature at rated operation; refrigerant liquid supplied to air space including air gap to allow cylindrical coil to vaporize refrigerant liquid to cool by latent heat of vaporization of refrigerant liquid. |
| US11251680B2 |
Deceleration device
A deceleration device according to an embodiment includes a driven gear configured to rotate about a rotational axis by driving power of a drive mechanism; a deceleration unit including a plurality of gears including a first gear and a second gear, the first gear that rotates by the driven gear, the second gear that rotates about the rotational axis, the deceleration unit configured to rotate the second gear at a reduced speed with respect to the driven gear; a first contact included in the second gear; and a second contact provided separately from the driven gear and the plurality of gears and configured to come into contact with the first contact to stop the rotation of the second gear. |
| US11251678B2 |
Small-sized motor apparatus for vehicle provided with improved shaft thrust gap prevention structure
A small-sized motor apparatus for a vehicle, includes: a frame; a drive shaft mounted to the frame, a driven shaft to rotate dependently on the drive shaft, the driven shaft including a second worm gear; a cover coupled to the frame; a plate-shaped washer member; and a gap spring member preventing an axial movement of the driven shaft, the gap spring member being assembled in a radial direction of the driven shaft and installed such that one side of the gap spring member is contact-supported by the plate-shaped washer member and the other side of the gap spring member is supported by the frame, wherein the frame includes a slide groove that accommodates both ends of the gap spring member and the plate-shaped washer member and restricts the gap spring member from moving in an axial direction of the driven shaft. |
| US11251670B2 |
Axial air-gap rotary electric machine having a different number of internal side layers and external side layers
An axial air-gap rotary electric machine includes a stator, a coil, and a bobbin. The bobbin includes a tube and a flange. The coil is wound on the outer periphery of the tube portion with regular winding. A number of turns of each of a plurality of layers wound around an external side of a last layer in contact with the flange is at least one less than a number of turns of each of a plurality of layers wound around an adjacent internal side of the last layer. |
| US11251665B2 |
Motor rotor and permanent magnet motor
The present invention discloses a motor rotor and a permanent magnet motor. The motor rotor includes a rotor core and a plurality of magnetic poles provided in the rotor core, wherein each magnetic pole includes a first permanent magnet, a second permanent magnet and a third permanent magnet; the first permanent magnet being arranged on a central position of the magnetic pole on which said first permanent magnet is located, the second permanent magnet being arranged at two sides of the first permanent magnet, the third permanent magnet being arranged at one side of the second permanent magnet far away from the first permanent magnet; the coercivity of the first permanent magnet is smaller than that of the second permanent magnet and that of the third permanent magnet; and the third permanent magnet is arranged on a q axis of the motor. |
| US11251661B2 |
Inductive power transmitter
An inductive power transmitter 2 comprising: a plurality of transmitter coils 7; a controller 8 configured to selectively energise the coils 7 in order to couple a receiver 3, the coils 7 selected being dependent on an orientation of the receiver 3, a power transfer optimisation algorithm, or a lookup table. |
| US11251659B2 |
Apparatus and method for detecting foreign object in wireless power transmission system
The present specification discloses a method for receiving wireless power from a wireless power transmission device on the basis of foreign object detection, the method comprising the steps of: receiving a digital ping from the wireless power transmission device; transmitting identification and configuration packets to the wireless power transmission device; transmitting a foreign substance detection state packet indicating a reference Q factor value of a wireless power reception device to the wireless power transmission device; and receiving wireless power through magnetic coupling from the wireless power transmission device, on the basis of a result of foreign substance detection using the reference Q factor value by the wireless power transmission device. |
| US11251658B2 |
System and method for collection and distribution of space based solar power
The present invention generally is a system and method for ground, atmospheric and space based solar powered electrical energy generation and transmission of beamed microwave power. Specifically it is a system and method for generating electrical energy from a plurality of photovoltaic cells dispersed on a flexible surface each in close proximity to and functionally connected to microwave generating and transmitting means for controllably forming one or more stronger microwave beams by combining a plurality of much weaker individual microwave beams. The invention can be a microwave beam weapon for detecting and transferring microwave energy to non-cooperative targets or it clear orbital debris by momentum transfer to space object through microwave radiation pressure. Most practically it can provide electric power and microwave beam weapon defense to remote military and civilian facilities, including forward operating bases. |
| US11251656B2 |
Coils for wireless power systems
A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat with one or more coils or may be a wireless charging puck with one or more coils. In some embodiments, the wireless charging puck may have six coils or other number of coils arranged in a ring. The wireless power receiving device may have an elongated magnetic core such as a C-shaped core with pillars at opposing ends. First and second coils may be formed on the pillars and a third coil may be formed between the first and second coils. The coils of the wireless power receiving device such as the first and second coils on the magnetic core may be configured to receive magnetic flux emitted by a pair of the six coils in the wireless charging puck. |
| US11251655B2 |
Electronic device and method for controlling wireless charging
An electronic device includes a wireless charging coil, a wireless charging circuit, a power management module, a battery, and a processor. The processor is configured to control to receive first information from an external electronic device while transmitting wireless charging power to the external electronic device through the wireless charging circuit, to control, in response to receiving the first information, the wireless charging circuit to stop transmission of the wireless charging power and operate in a state of transmitting and receiving a ping signal, to check whether a predetermined time has elapsed since the transmission of the wireless charging power is stopped, and to control, in response to elapse of the predetermined time, the wireless charging circuit to retransmit the wireless charging power to the external electronic device. Other embodiments are possible. |
| US11251652B2 |
Wireless energy transmission method and device
Embodiments of the present application provide a wireless energy transmission method and device. A method includes: generating a visible light communication signal according to wireless energy transmission intensity between a wireless energy sending device and a wireless energy receiving device; and sending the visible light communication signal. A signal can be transmitted (or received) related to wireless energy transmission intensity through visible light communication, to enable a user to easily obtain information about wireless energy transmission intensity. |
| US11251644B2 |
Packaged semiconductor devices with wireless charging means
A semiconductor device package is provided, including a semiconductor device, a molding material, and a conductive slot. The molding material surrounds the semiconductor device. The conductive slot is positioned over the molding material and having an opening and at least two channels connecting the opening to the edges of the conductive slot. |
| US11251640B2 |
Electronic apparatus and control method
An electronic apparatus includes a charging unit configured to charge a battery, and a control unit. The control unit is configured to control the charging unit to charge the battery based on a first charging condition, in a case where an operable time of the electronic apparatus from a charging completed state to a discharging completed state is not less than a predetermined threshold. The control unit is configured to control the charging unit to charge the battery based on a second charging condition in which a full charge capacity of the battery is greater than in the first charging condition, in a case where an operable time of the electronic apparatus from a charging completed state to a discharging completed state is less than the predetermined threshold. |
| US11251636B2 |
Power storage device and vehicle comprising same
A power storage device includes an input terminal, an output terminal, a first circuit, and a second circuit. The input terminal is to be electrically connected to a power supply. The output terminal is to be electrically connected to a load. The first circuit and the second circuit are electrically connected in parallel. Each of the first circuit and the second circuit are disposed between the input terminal and the output terminal. The first circuit includes a power storage unit and a discharge path that allows a discharge current from the power storage unit to flow toward the output terminal. The second circuit includes a blocking path that prevents the discharge current from flowing toward the input terminal. |
| US11251621B1 |
Solar power generation system
A solar power generation system is provided for more efficiently and cost-effectively generating and delivering power. The solar power generation system includes a plurality of distributed power converter nodes each configured to convert DC power received from a solar module into a deadband DC waveform. The deadband DC power generated by each power converter node is then transmitted to a centralized grid interface box, which is configured to unfold the deadband DC waveform into an AC signal suitable for transmission to an electric power grid. |
| US11251618B2 |
Apparatus and method for reactive power control
Apparatus and method for controlling reactive power. In one embodiment, the apparatus comprises a bidirectional power converter comprising a switched mode cycloconverter for generating AC power having a desired amount of a reactive power component. |
| US11251615B2 |
Controller for self-organizing microgrid
A controller for individual sites of the microgrid controls loads, sources, the importing of power, and the exporting of power as a function of the energy storage at the site. A microgrid of such sites provides the benefits of improved energy storage without the need for real-time communication between sites. |
| US11251613B2 |
Grid-tied variable frequency facility
A micro grid system comprises a secondary energy source and a power controller. The secondary energy source is associated with the micro grid, and the secondary energy source is configured to generate first DC power signal. The power controller is in communication with the secondary energy source and an electric grid, and configured to receive first AC power signal from the electric grid and the first DC power signal from the secondary energy source and to output a second AC power signal to loads in communication with the power controller. The power controller comprises a frequency converter configured to change frequency of the second AC power signal, a processor, and a memory configured to store instructions that, when executed, cause the processor to control the frequency converter to change the frequency of the second AC power signal. |
| US11251612B2 |
Method and arrangement for determining measurement locations in an energy grid
A method determines measurement locations in an energy grid. In the energy grid, use is made of a controllable device for wide-range voltage control. A model of the energy grid is provided which specifies a voltage distribution within the energy grid by a system of equations and/or a system of inequalities depending on the control position of the controllable device. A simulation for minimizing the number of measurement locations is carried out on the basis of the model, and in that as a result of the simulation a minimum number and the respective position of measurement locations and also the control position of the controllable device are specified in order that the energy grid complies with a predefined voltage band during operation. |
| US11251610B2 |
Control system for a power generation system
The invention lies in the field of current stabilisation in a power generation system comprising a plurality of elementary power groups connected in parallel. It relates to a control system for regulating the elementary power groups. According to the invention, the control system comprises a global current control system (510) and a plurality of local current control systems each associated with an elementary power source of the power generation system. The global current control system (510) comprises: ▪ a divider (511) arranged to deliver a fixed current set point In_fix, ▪ correction unit (512) arranged to deliver a variable current set point In_var and to take either a steady state or a transitory state, the variable current set point In_var being determined as a function of a correction signal Scorr in the transitory state, ▪ an adder (513) arranged to deliver a global current set point In_glob as the sum of the fixed current set point In_fix and the variable current set point In_var, and ▪ a scenario management unit (514) arranged to detect when the state of at least one elementary power source (2201-220N) switches from an OFF-state to an ON-state, or vice versa, to determine the correction signal Scorr and to trigger the transitory state of the correction unit for a predetermined transitory period τtrans when a change of state is detected. |
| US11251609B2 |
Surge protection apparatus
A surge protection apparatus includes a signal determination unit configured to generate a control signal by detecting a surge on a power line, and a switching unit connected between the power line and a ground terminal and configured to include a power transistor that is turned on in response to the control signal. |
| US11251608B2 |
Overvoltage protection system for wireless communication systems
A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit. |
| US11251605B2 |
System and method for protecting inverter in vehicle from overvoltage
A system for protecting an inverter in a vehicle from an overvoltage may include an inverter including a plurality of switching elements and converting energy supplied from an energy storage into AC power, a motor driven by the AC power converted by the inverter, a capacitor connected in parallel between the inverter and the energy storage and storing regenerative energy of the motor during regenerative braking, and a controller turning off a relay that connects the energy storage and the motor, when a voltage (DC-link voltage) of the capacitor measured by a voltage sensor is equal to or greater than a preset first voltage, and operating the switching elements in the inverter in response to a pre-stored current command (Id*, Iq*) to apply a zero vector to the motor. |
| US11251601B2 |
Non-volatile overvoltage detector
Techniques are provided for non-volatile detection of an overvoltage condition in a circuit of interest. A circuit implementing the techniques according to an embodiment includes a fuse configured to provide a non-volatile indication of an overvoltage event, the indication associated with an open state of the fuse. The circuit also includes a voltage controlled current switch coupled in series to the fuse. The voltage controlled current switch is configured to enable current flow through the fuse in response to a supply voltage exceeding a threshold value associated with the overvoltage event. The current causes the fuse to switch from a closed state to an open state providing a non-volatile record of the overvoltage event. In some embodiments, the voltage controlled current switch can be a Zener diode with a breakdown voltage based on the threshold value, or a transistor configured to switch into conducting mode at the threshold value. |
| US11251594B2 |
Fastening structure of clamp for supporting power line and insulator
Provided is a fastening structure of a clamp for supporting a power line and an insulator, which includes a fastening means for preventing an end of the insulator from being separated from the clamp in a state in which the end of the insulator is disposed between an arm part and an auxiliary arm part of the clamp. The fastening means includes a pin fitted to pass through through-holes of the arm part and the auxiliary arm part of the clamp and the end of the insulator and an elastic latching rod mounted on the pin and elastically curved to pass through each of the through-holes and to be restored in its original shape, thereby preventing the pin from being separated. The elastic latching rod is mounted on the pin and has the form of a coil spring where both ends of the elastic latching rod protrude from the pin. |
| US11251593B2 |
Minimal touch post for multi-layer cable routing
An apparatus includes a tray, a shaft connected to the tray, a bracket that secures the tray to a networking device such that the tray is distanced from a surface of the networking device, and a support post coupled to the tray via the shaft, the support post including: a rotating pin having a cylindrical passage through which the shaft passes, the rotating pin being coupled to the support post to allow the support post to rotate about the rotating pin and about the shaft, and a locking pin having a latch that is configured to engage with a corresponding opening on the tray to secure the support post to the tray. |
| US11251587B2 |
Laser diode and method for manufacturing a laser diode
A laser diode and a method for manufacturing a laser diode are disclosed. In an embodiment a laser diode includes a surface emitting semiconductor laser configured to emit electromagnetic radiation and an optical element arranged downstream of the semiconductor laser in a radiation direction, wherein the optical element includes a diffractive structure or a meta-optical structure or a lens structure, and wherein the optical element and the semiconductor laser are cohesively connected to each other. |
| US11251574B2 |
Mobile terminal
A mobile terminal is provided. The mobile terminal includes: a rear cover; a circuit board; a battery connector; and a fixing member including a first holder arranged on the rear cover and a second holder arranged on the circuit board. The first holder has two first elastic arms, the second holder has two second elastic arms, and each of the two second elastic arms is fastened to each of the two first elastic arms to define a receiving space for receiving the battery connector. |
| US11251570B2 |
Electrical connector
A plurality of contacts are disposed within the corresponding passageways of the housing of the electrical connector, respectively. Each contact includes a main body extending in a vertical plane with two pairs of fixing sections on two opposite lateral sides to form an X-like shape, and a pair of resilient contacting arms extending from opposite upper and lower ends of the main body for mating with the CPU and PCB. A pair of extension arms extend from the waist section of the main body in a direction perpendicular to the vertical plane. The contacting arm includes a vertical section coplanar with the main body, an oblique section extending from an upper end of the vertical section with a bulged and narrowed contacting section at the free end. Each pair of fixing sections are located by two sides of the vertical section of the corresponding contacting arm. |
| US11251569B2 |
Electrical connector
An electrical connector includes an insulating body accommodating multiple first terminals. The first terminals include first and second differential signal pairs. No ground terminal is provided at one side of the first differential signal pair. Both sides of the second differential signal pair have ground terminals. The impedance of the first differential signal pair is adjusted by having a distance between the first differential signal pair and the first ground terminal less than a distance between the second differential signal pair and the first ground terminal, or by having a width of a portion of the first differential signal pair exposed out of the insulating body greater than a width of a portion of the second differential signal pair exposed out of the insulating body, or by having a distance between terminals of the first differential signal pair less than a distance between terminals of the second differential signal pair. |
| US11251557B2 |
Electrical connector
An electrical connector includes: an insulating body provided with multiple accommodating holes running vertically therethrough, and multiple terminals correspondingly accommodated in the accommodating holes. Each accommodating hole has two protruding portions. Each terminal includes a main body portion. Two upper elastic arms are formed by bending upward and extending from left and right sides of the main body portion. Each upper elastic arm extends backward to form an upper abutting portion. A strip connecting portion extends upward from the main body portion to be connected to a strip. The strip connecting portion is located between the two upper elastic arms. Each of the left and right sides of the main body portion is provided with a position limiting portion protruding outward. The position limiting portion is located below the protruding portion. The position limiting portion and a corresponding upper elastic arm overlap along a vertical direction. |
| US11251555B2 |
Floating connector for floating connection
A floating connector includes a shell, a plurality of electrodes, two buckle members and a floating member. The shell has an accommodating space and a plurality of openings. The electrodes are disposed in the accommodating space and penetrate the openings to protrude from the openings. The buckle members are respectively disposed on two sides of the accommodating space. Each of the buckle members includes a fixed part, a contacting part, and an elastic part. The floating member includes a body, a plurality of electrode notches, and a bump. The electrode notches are formed on one side of the body that near the electrodes for receiving the electrodes protruding from the openings. The bump is disposed on the body and correspondingly to the notch, and the width of the bump is not greater than that of the notch, so that the bump is restricted in the notches by the guiding structure. |
| US11251551B2 |
Connecting element, assembly connection and circuit board arrangement
Embodiments of a connecting element for connecting a first electrical assembly to a second electrical assembly may comprise a rigid, tubular outer housing made of an electrically conductive material and an electrical cable running inside the outer housing along a longitudinal axis of the outer housing. The electrical cable may include at least one inner conductor and a dielectric layer surrounding the at least one inner conductor. At least one segment of the outer housing may be reshaped along the longitudinal axis in such a way as to fix the electrical cable inside the outer housing. |
| US11251550B1 |
Systems and methods for a cable connector
A connector for receiving a ribbon cable is provided. The connector includes a housing including an open top, a cable organizer, and a cover. The cable organizer is configured to be positioned within an interior of the housing and configured to receive the ribbon cable upon an upper surface thereof. The cover is configured to selectively cover the open top of the housing to enclose the cable organizer within the interior of the housing. The cover is coupled to the housing and includes a latch configured to engage the housing and the cable organizer and move in a both vertical direction relative to the housing and rotate relative to the housing. |
| US11251548B2 |
Electrical terminal assembly and electrical connector thereof
An electrical terminal assembly includes a mounting block and one or more electrical terminals. The electrical terminal includes a terminal body and a first exposed section. The terminal body is embedded in the mounting block. The first exposed section is extended from the terminal body and protruding from the mounting block. The first exposed section further includes an interference part protruding from one side edge of the first exposed section. A protruding direction of the interference part is substantially perpendicular to an extension direction of the first exposed section. An electrical connector includes the electrical terminal assembly and a base accommodating the electrical terminal assembly. |
| US11251545B2 |
Connector and attachment method
A connector (10) configured to bring an object (70) into conduction comprises: a pair of fitting bodies fittable to each other; and a filler (60) with which at least one fitting body of the pair of fitting bodies is loaded, wherein a fitting body of the pair of fitting bodies includes an accommodating portion (35a) configured to accommodate an end of the object (70), and the filler (60) is configured to cover the end of the object (70) in the accommodating portion (35a). |
| US11251540B2 |
Method for controlling antenna and electronic device thereof
Various examples of the present invention relate to an apparatus and a method for controlling a connection and an operation of an antenna in an electronic device. Here, the electronic device comprises: a plurality of antenna units arranged in a first region thereof; at least one antenna unit arranged in a second region thereof; a communication circuit, which is connected to the plurality of antenna units arranged in the first region and to at least one antenna unit arranged in the second region; a first switch arranged in an electric path, which connects the plurality of antenna units with the communication circuit; and a second switch arranged in an electric path, which connects the at least one antenna unit with the communication circuit, wherein the first switch and the second switch can be configured to connect the plurality of antenna units with the communication circuit and the at least one antenna unit with the communication circuit, by using a first electric path and a second electric path for connecting the first switch and the second switch. Other examples are possible. |
| US11251538B2 |
Antenna module
Disclosed is an antenna module for minimizing the occurrence of breakdowns during the manufacturing thereof by adhering heterogeneous material, which adheres heterogeneous material base substrates with adhesive substrates. The disclosed antenna module has a plurality of first radiation patterns formed on the upper surface of a first base substrate, has a plurality of second radiation patterns and a plurality of chipsets formed on the upper surface and the lower surface of a second base substrate disposed below the first base substrate, has a first adhesive substrate interposed between the first base substrate and the second base substrate, wherein the first adhesive substrate has air gap holes formed therein so as to form air gaps between the plurality of first radiation patterns and the plurality of second radiation patterns. |
| US11251537B2 |
Reconfigurable intelligent surface-based systems and methods for managing multiple wired connections in wireless data centers
Systems and methods for dynamically controlling connections between a plurality of servers in a data center, where the data center includes at least a first reconfigurable intelligent surface (RIS) and a first RIS controller (RISC) configured to control physical propagation settings of physical propagation elements of the first RIS, wherein each server of the plurality of servers includes or is communicably connected with a wireless connection component enabling communication via directive wireless propagation via the physical propagation elements of the first RIS. A controller device pushes a set of one or more RIS configurations to the RIS and a set of one or more transceiver beamforming configurations to the wireless connection components and jointly determines an optimal transceiver beamforming configuration and an optimal RIS configuration using the connection feedback information. |
| US11251531B2 |
Antenna device and radio apparatus
An antenna device includes first and second openings formed inside a GND plate, a first feed conductor formed from a first outer peripheral side, which is one of the outer peripheral sides of the first opening, to a second outer peripheral side, and supplied with AC power, a first split part formed in an opening region of the first opening, a first feed conductor formed from a third outer peripheral side, which is one of the outer peripheral sides of the second opening, to a fourth outer peripheral side, and supplied with the AC power common to the first feed conductor, and a second split part formed in an opening region of the second opening. |
| US11251524B1 |
Phased-array antenna system
A phased-array antenna system includes antenna elements of an RF front-end that each propagate a wireless beam portion. A digital beamforming system generates a digital beam corresponding to the wireless beam that is transmitted or received from the phased-array antenna system. Digital beamforming processors are each associated with a proper subset of the antenna elements. The digital beamforming processors can be collectively configured to iteratively process digital beam portions of the digital beam in a plurality of iteration levels comprising a lowest iteration level associated with lowest-level digital beam portions corresponding to the respective wireless beam portions at each of the respective antenna elements and a highest iteration level associated with the digital beam. Each digital beam portion associated with a given iteration level includes a sum of lesser digital beam portions from a next lower iteration level. |
| US11251519B2 |
Helical antenna for wireless microphone and method for the same
Embodiments include an antenna assembly for a wireless microphone, comprising a helical antenna including a feed point and at least one contact pin coupling the feed point to the wireless microphone. The helical antenna is configured for operation in first and second frequency bands. Embodiments also include a wireless microphone comprising a main body having top and bottom ends and an antenna assembly coupled to the bottom end. The antenna assembly comprises a helical antenna configured to transmit and receive wireless signals, an inner core configured to support the helical antenna on an outer surface of the inner core, and an outer shell formed over the inner core and the helical antenna. Embodiments further include a method of manufacturing an antenna assembly for a wireless microphone using a first manufacturing process to form a core unit of the antenna assembly and a second manufacturing process to form an overmold. |
| US11251517B2 |
Antenna assembly and electronic device
An antenna assembly and an electronic device are disclosed. The antenna assembly includes a near-field-communication (NFC) integrated-circuit (IC), a conductive loop, and a radiation-field enhancer. The NFC IC includes a first differential signal port and a second differential signal port for providing a differential excitation current. The first metal stub extends from the first ground portion of the ground plane and electrically connected to the first differential signal port. The conductor is spaced apart from the ground plane, and is electrically connected to the second differential signal port and the second ground portion, respectively. The radiation-field enhancer is disposed between the conductor and the ground plane and configured to enhance a field strength of an NFC radiation-field generated by the conductor in response to the differential excitation current being transmitted. |
| US11251516B2 |
Semiconductor device with tunable antenna using wire bonds
A semiconductor device, or semiconductor device package, that includes a substrate having an antenna structure on a surface of the substrate and a wire bond that electrically connects the antenna structure to the substrate to form an antenna or a first antenna configuration. The substrate may include a second antenna structure with the wire bond connected to the second antenna structure forming a second antenna or antenna configuration. The semiconductor device may include a radio communication device electrically connected to the substrate. The antenna or antenna configuration may be tuned to the requirements of the radio communication device. The antenna configuration may be tuned by connected to different antenna structures on the surface of the substrate. The antenna configuration may be tuned by changing a length of the wire bond, changing a diameter of the wire bond, and/or changing the material of the wire bond. |
| US11251512B2 |
Pluggable MM-wave module for rack scale architecture (RSA) servers and high performance computers (HPCS)
Embodiments of the invention include an active mm-wave interconnect. In an embodiment, the active mm-wave interconnect includes a dielectric waveguide that is coupled to a first connector and a second connector. According to an embodiment, each of the first and second connectors may include a mm-wave engine. In an embodiment, the mm-wave engines may include a power management die, a modulator die, a demodulator die, a mm-wave transmitter die, and a mm-wave receiver die. Additional embodiments may include connectors that interface with predefined interfaces, such as small form-factor pluggables (SFP), quad small form-factor pluggables (QSFP), or octal small form-factor pluggables (OSFP). Accordingly, embodiments of the invention allow for plug and play functionality with existing servers and other high performance computing systems. |
| US11251510B2 |
Tunable diplexer junction
A tunable diplexer arrangement (100) comprising a first filter arrangement (110) and a second filter arrangement (120) connected to respective first (115) and second (125) filter ports of a junction (130), the junction comprising a common port (140), wherein at least the first filter arrangement (110) is a tunable filter comprising a first tuning element (111), wherein the junction (130) comprises a first junction tuning element (112) corresponding to the first tuning element (111) and arranged in connection to the second filter port (125), thereby enabling a tunable matching of the junction (130) with respect to a first frequency characteristic of the first filter arrangement (110). |
| US11251507B2 |
Battery
A battery, for example, a rechargeable battery (e.g. lithium ion battery) having a casing with battery terminals. The casing, for example, includes an upper section, middle section, and lower section connected together. The battery can be connected to one or more battery trays having the same height or different heights for various applications. |
| US11251506B2 |
Battery pack and terminal
A battery terminal having a pair of contact tulips that mate with a device terminal in a mating direction. The first of the pair of contact tulips mates with the device terminal in a first contact plane and the second of the pair of contact tulips mates with the device terminal in a second contact plane. The first contact plane is generally parallel to the contact plane. Both the first and the second contact planes are generally perpendicular to the mating direction. The resistance between the first tulip and the device terminal is approximately half the resistance between the second tulip and the device terminal. |
| US11251505B2 |
Battery module, and battery pack and vehicle comprising same
A battery module according to the present disclosure includes a cell assembly including a plurality of battery cells stacked in a vertical direction, each battery cell having an electrode lead in a shape of a plate that protrudes forward in a depth direction perpendicular to the vertical direction, the electrode lead being bent for surface contact in the vertical direction with an adjacent electrode lead, the electrode lead having a protruding part that protrudes forward in the depth direction from a front side end thereof, and a sensing terminal module having a plurality of sensing terminals made of an electrically conductive material and a plurality terminal seating holes in which corresponding ones of the sensing terminals are seated and supported, the protruding part of each electrode lead being press-fit into a corresponding one of the sensing terminals which compresses around the protruding part. |
| US11251503B2 |
Battery pack
A plurality of battery cells of a battery pack may include at least one first battery cell arranged in a first row, at least one second battery cell arranged in a second row adjacent to the first row, at least one third battery cell arranged in a third row adjacent to the second row, and at least one fourth battery cell arranged in a fourth row adjacent to the third row. The at least one first battery cell and the at least one second battery cell are connected in series. Each of the at least one first battery cell is connected in parallel with a corresponding one of the at least one third battery cell. Each of the at least one second battery cell is connected in parallel with a corresponding one of the at least one fourth battery cell. |
| US11251502B2 |
Electrode assembly and method for manufacturing the same
The present invention relates to an electrode assembly in which a plurality of electrode stacks are stacked to improve product reliability when manufactured and a method for manufacturing the same. The present invention also relates to a method for manufacturing an electrode assembly and includes a preparation step of preparing a plurality of electrode stacks in which an electrode and a separator are alternately stacked, a stacking step of stacking the plurality of electrode stacks on each other, a packaging step of wrapping and packaging a circumferential potion of the plurality of stacked electrode stacks using a separator member, and a fixing step of heating and pressing the separator member to fix the plurality of stacked electrode stacks. |
| US11251501B2 |
Lithium metal sulfide and lithium metal sulfide argyrodite ionically conductive compounds and related uses
Articles, compositions, and methods involving ionically conductive compounds are provided. In some embodiments, the ionically conductive compounds are useful for electrochemical cells. The disclosed ionically conductive compounds may be incorporated into an electrochemical cell (e.g., a lithium-sulfur electrochemical cell, a lithium-ion electrochemical cell, an intercalated-cathode based electrochemical cell) as, for example, a protective layer for an electrode, a solid electrolyte layer, and/or any other appropriate component within the electrochemical cell. In certain embodiments, electrode structures and/or methods for making electrode structures including a layer comprising an ionically conductive compound described herein are provided. |
| US11251494B2 |
Electric vehicle battery enclosure
A battery enclosure for use in an electric vehicle where the structural support members of the battery enclosure are multi-functional and act to provide support for internally positioned batteries as well as provide additional strength to the framework of the electric vehicle. Furthermore, the structural elements can provide impact resistance to prevent unwanted intrusion into the battery enclosure. |
| US11251492B2 |
Vehicle
A vehicle includes a vehicle body, a power storage device, and a joining unit. The power storage device includes a power storage module and a power storage case. The power storage case includes a case body and a plurality of bottom surface reinforcing members. The joining unit includes a first bracket joined to a first end of a first bottom surface reinforcing member, a second bracket joined to a second end of a second bottom surface reinforcing member, and a third bracket joined to a second end of a third bottom surface reinforcing member. No joining unit is provided at a second end of the first bottom surface reinforcing member. |
| US11251489B2 |
Battery assembly having a support post and battery module supporting method utilizing a support post
A battery assembly includes, among other things, an upper tier tray, an upper battery module supported on the upper tier tray, and a post that supports the upper tier tray. A battery module support method according to another exemplary aspect of the present disclosure includes, among other things, supporting an upper tier tray with a post; and supporting an upper battery module with the upper tier tray. |
| US11251486B2 |
Battery array attachment assembly and method
A battery pack assembly includes, among other things, an enclosure providing an interior area that houses one or more battery arrays, a bracket secured relative to the enclosure, and a bracket fastener having a stem extending longitudinally from a head along a longitudinal axis of the bracket fastener. The head is enlarged radially relative to the stem. The head is captured between the bracket and a surface of the enclosure. A battery pack securing method includes, among other things, securing a bracket relative to an enclosure of a battery pack to capture a head of a bracket fastener between the bracket and a surface of an enclosure. The bracket fastener has a stem that extends longitudinally from the head of the bracket fastener. |
| US11251485B2 |
Lead-acid battery
A lead-acid battery (100) is provided with a lid (14). An external flow passage (530) communicating with a communication chamber (520) through a vent hole (321) and communicating with a discharge port (405) of a lid (14) is formed inside the lid (14). A compartment fence (452, 454) continuously extending over the entire width of the external flow passage (530) is formed in the external flow passage (530). A residual volume is larger than the volume of the communication chamber (520), the residual volume being obtained by subtracting, from the total volume of a plurality of external spaces (460, 462, 464) divided by the compartment fence (452, 454), the volume of the discharge-side external space (464) closest to the discharge port among the plurality of external spaces. |
| US11251482B2 |
Cell housing plate for the arrangement of round cells
A cell housing plate for the arrangement of round cells, comprising a cover plate arranged on the top side of the cell housing plate, and a base plate arranged opposite the cover plate on the underside of the cell housing plate, wherein the cover plate and the base plate have a plurality of cut-outs arranged opposite each other for receiving the round cells, wherein the cut-outs each have a collar pointing radially towards the inside of the cut-out for receiving a sealant, and an opening arranged inside the collar for passage of the round cells, wherein the cover plate and the base plate are arranged relative to each other such that the cut-outs of the cover plate and the opposite cut-outs of the base plate form cavities for receiving sealant for sealing the round cells which may be arranged inside the cell housing plate. |
| US11251477B2 |
Nanofluid contact potential difference battery
A nanofluid contact potential difference cell comprises a cathode with a lower work function and an anode with a higher work function separated by a nanometer-scale spaced inter-electrode gap containing a nanofluid with intermediate work function nanoparticle clusters. The cathode comprises a refractory layer and a thin film of electrosprayed dipole nanoparticle clusters partially covering a surface of the refractory layer. A thermal power source, placed in good thermal contact with the cathode, drives an electrical current through an electrical circuit connecting the cathode and anode with an external electrical load in between. A switch is configured to intermittently connect the anode and the cathode to maintain non-equilibrium between a first current from the cathode to the anode and a second current from the anode to the cathode. |
| US11251476B2 |
Nested annular metal-air cell and systems containing same
Electrochemical metal-air cells having nested electrodes provided in an annular or cylindrical configuration, including systems that contain such cells in a sealed container. Each cell may include an oxidant electrode (air cathode) and a fuel electrode (anode), both configured in annular form. A series of permeable bodies, screens, or current collectors may be provided as part of the fuel electrode. An annular oxygen evolution electrode may also be provided in the cells. In some cases, the fuel electrode is nested within the oxidant electrode, or vice versa. Optionally, a second oxidant electrode may be included in the cells. Ionically conductive medium or electrolyte may be contained in the cell. Each cell may have its own cell housing. Optionally, an air space or pocket may be formed in a cell via an oxidant electrode. The sealed container may contain the cells such that they are surrounded by air or an electrolyte. |
| US11251474B2 |
Structure and system with battery cooling
A cooling structure includes a plurality of bars spaced apart from each other and configured to extend along a first surface of a battery cell; a support configured to support the plurality of bars; and a plurality of flow paths defined by the first surface of the battery cell and a pair of adjacent bars of the plurality of bars, the plurality of flow paths being configured to guide flow of a coolant in contact with the first surface of the battery cell. |
| US11251468B2 |
Device for battery formation
The present disclosure provides a device for battery formation, which comprises a negative pressure mechanism, a connecting assembly and a suction joint. The negative pressure mechanism has a receiving cavity inside. The suction joint is provided to the negative pressure mechanism and communicated with the receiving cavity. The connecting assembly is provided as plurality in number, and the plurality of the connecting assemblies are provided to the negative pressure mechanism; each connecting assembly is communicated with the receiving cavity and used for being connected to a battery. |
| US11251467B2 |
Electrolyte additives
Described herein are additives for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high capacity retention during battery cycling at high temperatures. In some embodiments, a high temperature electrolyte includes a base electrolyte and one or more polymer additives, which impart these desirable performance characteristics. |
| US11251465B2 |
Organic electrolyte and lithium battery employing said electrolyte
Provided are an organic electrolytic solution and a lithium battery including the organic electrolytic solution, wherein the organic electrolytic solution includes an organic solvent, a lithium salt, a borate compound represented by Formula 1 below, and an ionic metal complex represented by Formula 2 below: wherein R1, R2, and R3 are each independently a hydrogen; a C1-C5 alkyl group substituted or unsubstituted with a halogen; or a C1-C5 cyanoalkyl group substituted or unsubstituted with a halogen, at least one of the R1, R2, and R3 includes a cyanoalkyl group, Me is an element selected from the group consisting of transition metals and Groups 13 to 15 elements of the periodic table, M is a metal ion, a is an integer from 1 to 3, b is an integer from 1 to 3, s=b/a, p is an integer from 0 to 8, q is 0 or 1, r is an integer from 1 to 4, X1 and X2 are each independently O, S, or NR6, R4 and R6 are each independently a halogen, a C1-C5 alkyl group substituted or unsubstituted with a halogen, or a C1-C5 aryl group substituted or unsubstituted with a halogen, and R5 is a C1-C5 alkylene group substituted or unsubstituted with a halogen or a C4-C10 arylene group substituted or unsubstituted with a halogen. |
| US11251463B2 |
Method for preparing a sintered solid electrolyte having high ionic conductivity for an all-solid-state battery
A method of preparing a sintered solid electrolyte includes (a) coprecipitating a mixed solution including a lanthanum precursor, a zirconium precursor, a gallium precursor, a complexing agent, and a pH adjuster to provide a solid electrolyte precursor; (b) washing and drying the solid electrolyte precursor to provide a washed and dried solid electrolyte precursor; (c) mixing the washed and dried solid electrolyte precursor with a lithium source to provide a mixture; (d) calcining the mixture to provide a calcined solid electrolyte, which is a gallium (Ga)-doped lithium lanthanum zirconium oxide (LLZO), as represented by Chemical Formula 1 below, LixLayZrzGawO12, Chemical Formula 1 where 5≤x≤9, 2≤y≤4, 1≤z≤3, and 0 |
| US11251458B2 |
Cylindrical batteries
A cylindrical battery with an electrode assembly, an electrolytic solution, a bottomed cylindrical exterior case accommodating the electrode assembly and the electrolytic solution, and a sealing unit fixed by crimping of an open end portion of the exterior case via a gasket. The sealing unit includes a valve member which has a protrudent portion that is annular in plan view, an insulating plate which is fitted within the inner periphery of the protrudent portion and which has an outer peripheral skirt portion, and a metal plate which is fixed within the inner periphery of the skirt portion of the insulating plate and which is connected to a central portion of the valve member. The tip of the protrudent portion is located at a level which does not reach the level of a second surface portion of the metal plate in the direction of thickness of the sealing unit. |
| US11251456B2 |
Heat treatment apparatus of MEA for fuel cell
A heat treatment apparatus for a fuel cell membrane-electrode assembly is provided. The heat treatment apparatus includes a hot press installed on upper and lower sides of feeding path to move in the vertical direction on a frame and which presses the electrode catalyst layers on upper and lower surfaces of the membrane-electrode assembly sheet. A plurality of gripper modules are installed at set intervals in a base member along a feeding direction of the membrane-electrode assembly sheet, and selectively grip both side edges of the membrane-electrode assembly sheet. A driving unit reciprocally moves the base member in a direction perpendicular to the feeding direction of the membrane-electrode assembly sheet and in the feeding direction of the membrane-electrode assembly sheet. |
| US11251455B2 |
Solid ionically conducting polymer material
A solid, ionically conductive, polymer material with a crystallinity greater than 30%; a glassy state; and both at least one cationic and anionic diffusing ion, wherein each diffusing ion is mobile in the glassy state. |
| US11251454B2 |
Fuel cell
A fuel cell includes: a membrane electrode gas diffusion layer assembly in which a membrane electrode assembly is sandwiched by a pair of gas diffusion layers; an insulating member formed into a frame shape, and being in contact with an outer peripheral portion of the membrane electrode gas diffusion layer assembly; and first and second separators sandwiching the membrane electrode gas diffusion layer assembly and the insulating member. |
| US11251452B2 |
Method of restoring electrolyte of vanadium redox flow battery through electrolysis
A method is provided for restoring an electrolyte of vanadium (V) redox flow battery (VRFB). Electrolyte data of an original system are analyzed in advance. A reusable positive electrode is further equipped with a V electrolyte. A reductant for a stack of VRFB is used in coordination as an electrolysis device. After a long-term reaction with a VRFB having a high valence (greater than 3.5), an electrolyte at the positive electrode is directed out to a negative electrode of the electrolysis device; and, then, electrolysis is processed after accurate calculation. In the end, the internal fluid balancing method of the original system is combined. Thus, a harmless and quick valence restoration is processed for the electrolyte of the original system, which is a final resort for the restoration of V electrolyte. |
| US11251451B2 |
Controller for estimating relative humidity and condensed water, and method for controlling condensed water drain using the same
The present invention provides a relative humidity and condensed water estimator for a fuel cell and a method for controlling condensed water drain using the same. Here, the relative humidity and condensed water estimator is utilized in control of the fuel cell system involving control of anode condensed water drain by outputting at least two of signals comprising air-side relative humidity, hydrogen-side relative humidity, air-side instantaneous or cumulative condensed water, hydrogen-side instantaneous or cumulative condensed water, instantaneous and cumulative condensed water of the humidifier, membrane water contents, catalyst layer oxygen partial pressure, catalyst layer hydrogen partial pressure, stack or cell voltage, air-side catalyst layer relative humidity, hydrogen-side catalyst layer relative humidity, oxygen supercharging ratio, hydrogen supercharging ratio, residual water in a stack, and residual water in a humidifier. |
| US11251450B2 |
Control system and control method for fuel cell cooling
A control system for fuel cell cooling is provided. The system includes a fuel cell stack, a coolant circulation line connected to the fuel cell stack, and a heat exchange device provided in the coolant circulation line. A bypass line bypasses the heat exchange device. A temperature adjusting device adjusts a ratio between coolant flowing into the heat exchange device of the coolant circulation line and coolant flowing into the bypass line. A temperature estimator estimates a temperature of the coolant of the coolant circulation line at a point before the bypass line joins the coolant circulation line after the coolant passes through the heat exchange device. An opening degree controller operates the temperature adjusting device using the temperature of the coolant estimated by the temperature estimator and the temperature of the coolant at a point at which the coolant flows into the fuel cell stack. |
| US11251447B2 |
Process and system for detecting low-level fuel injector leakage in a fuel cell system
A process for detecting a low-level leak in a fuel cell system is provided. The process includes, within a computerized fuel cell controller, operating programming to monitor operation of the fuel cell system, determine an expected reduction in pressure within an anode gas loop of the fuel cell system based upon the monitored operation, determine a calibrated threshold pressure change based upon the expected reduction in pressure and a margin selected to indicate excess hydrogen gas within the anode gas loop indicating a fuel injector leak, when a fuel injector of the fuel cell system is commanded to a closed state, monitor a pressure within the anode gas loop through a time period, compare the monitored pressure within the anode gas loop through the time period to the calibrated threshold pressure change, and when the comparing indicates the excess hydrogen gas is present, taking remedial action. |
| US11251445B2 |
System for estimating amount of purge of fuel cell, and system and method for estimating hydrogen concentration of fuel cell using the same
A system for estimating purge of a fuel cell includes the fuel cell for generating power by receiving hydrogen at an anode side, and receiving oxygen at a cathode side, a recirculation line connected with the anode side of the fuel cell, and in which gas containing hydrogen therein is circulated, a purge valve positioned in the recirculation line, and for discharging the gas in the recirculation line to outside as the purge valve is opened, a differential pressure calculator for calculating a differential pressure between a front end and a rear end of the purge valve, a speed estimator for estimating a current gas diffusion speed in the recirculation line, and a purge amount estimator for estimating the amount of purge through the purge valve by using the differential pressure calculated by the differential pressure calculator and the gas diffusion speed estimated by the speed estimator. |
| US11251443B2 |
Fuel cell system, operating method thereof and fuel cell power plant
A fuel cell system is disclosed, which includes an anode recirculation loop having a fuel cell stack for generating power, a flowmeter, a current sensor and a processor. The flowmeter is configured for measuring a fuel flow rate provided into the anode recirculation loop. The current sensor is configured for measuring a current drawn from the fuel cell stack. The processor is configured for determining a steam to carbon ratio in the anode recirculation loop based on the measured fuel flow rate and the measured current. The fuel cell system further includes a temperature sensor for measuring a temperature in the anode recirculation loop. The process is configured for determining the steam to carbon ration further based on the measured temperature. A method for operating the fuel cell system and a fuel cell power plant are also disclosed. |
| US11251440B2 |
Fuel cell stack
A fuel cell stack in which cell units are stacked one on top of another, each of the cell units including: a power generation cell; and a separator defining and forming a flow passage portion, being a flow path of the gas, between the separator and the power generation cell, includes a frame body having an insulating property and arranged between at least one set of the cell units adjacent to each other. The frame body includes: as viewed in a stacking direction, outer peripheral beam portions provided to surround an outer peripheral side of a region in which the power generation cell is arranged; a connection beam portion connecting the outer peripheral beam portions to each other; and sealing beam portions formed along sealing portions at least partially sealing a manifold portion through which the gas is allowed to flow to the separator. |
| US11251438B2 |
Tube structure having metal on inner surface thereof
A structure, and more specifically a tube-shaped structure having an inner surface and two ends, wherein one or both ends are open and the inner surface is exposed through said one or both open ends, and a metal provide on the inner surface. Also, an electrode active material, such as lithium metal, on the metal included on the inner surface of the tube. |
| US11251437B2 |
Lithium secondary battery including nonaqueous electrolyte having lithium-ion conductivity
A lithium secondary battery comprises an electrode group and a nonaqueous electrolyte having lithium-ion conductivity. A negative electrode current collector has a first surface facing outward of winding of the electrode group and a second surface facing inward of the winding of the electrode group. At least the first surface or the second surface includes a first region and a second region that is closer to an innermost circumference of the winding of the electrode group than the first region. Protrusions include outer-circumference-side protrusions disposed on the first region and inner-circumference-side protrusions disposed on the second region. In at least the first surface or the second surface, a first area rate is larger than a second area rate. |
| US11251432B2 |
Lithium battery
A lithium battery includes a cathode including a cathode active material; an anode including an anode active material; and an organic electrolytic solution between the cathode and the anode, wherein the anode active material includes natural graphite and artificial graphite, an amount of the artificial graphite being about 50 wt % or more based on a total weight of the anode active material, and the organic electrolytic solution includes: a first lithium salt; an organic solvent; and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond. |
| US11251431B2 |
All-solid-state battery
A high discharge capacity in an all-solid-state battery in which lithium vanadium phosphate is used in a positive electrode active material layer and a negative electrode active material layer. An all-solid-state battery wherein a positive electrode active material layer and a negative electrode active material layer contain lithium vanadium phosphate, which includes a Li- and V-containing polyphosphate compound and satisfies 1.50 |
| US11251429B2 |
Rechargeable electrical device having a multi-layered structure molybdenum disulphide cathode
A system and method for a rechargeable electrical device includes an anode, a cathode, an electrolyte located between the anode and the cathode, and a housing retaining the anode, cathode and electrode, wherein the cathode comprises a molybdenum sulphide compound. |
| US11251428B2 |
Positive electrode active material manufacturing method with control of washing slurry liquid electrical conductivity
A method for manufacturing a positive electrode active material includes: (a) preparing a fired powder of a lithium nickel composite oxide by mixing a nickel compound selected from a nickel hydroxide including nickel, and an element selected from other transition metal elements, elements of the second group and elements of the thirteenth group of the Periodic System, a nickel oxyhydroxide thereof, and a nickel oxide obtained by roasting thereof, and a lithium compound, and firing the mixture at a maximum temperature of 650° C. to 850° C. under oxygen atmosphere; and (b) preparing a lithium nickel composite oxide powder by mixing the fired powder with water to obtain a slurry, washing the fired powder with water at a temperature of 10° C. to 40° C., while controlling an electrical conductivity of a liquid portion of the slurry to 30 mS/cm to 60 mS/cm, then filtering and drying the resultant fired powder. |
| US11251427B2 |
Positive active material for nonaqueous electrolyte secondary battery, transition metal hydroxide precursor, method of producing transition metal hydroxide precursor, method of producing positive active material for nonaqueous electrolyte secondary battery, positive electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery
Disclosed is a positive active material for a nonaqueous electrolyte secondary battery containing a lithium transition metal composite oxide, in which the lithium transition metal composite oxide has an α-NaFeO2 structure, a molar ratio Li/Me of Li and a transition metal (Me) is 1 |
| US11251423B2 |
Lithium secondary battery
Provided is a lithium secondary battery containing a cathode active material capable of preventing decreases in power and cycle life occurring at the time of adding a sulfur based additive used in order to improve high-temperature storage characteristics to an electrolyte. |
| US11251421B2 |
Negative electrode material for lithium ion secondary battery, negative electrode for lithium ion secondary battery, and lithium ion secondary battery
A negative electrode material for a lithium ion secondary battery including carbon over a part or a whole of a surface of an oxide of silicon, in which the content of the carbon is from 0.5 mass-% to less than 5 mass-%. |
| US11251414B2 |
Electrode group, secondary battery, battery pack, and vehicle
According to one embodiment, an electrode group includes a positive electrode active material-containing layer, a negative electrode active material-containing layer, a lithium ion conductive layer, and a porous layer. The lithium ion conductive layer includes lithium-containing inorganic particles. The lithium ion conductive layer covers at least part of the positive electrode active material-containing layer. The porous layer covers at least part of the negative electrode active material-containing layer. The positive electrode active material-containing layer and the negative electrode active material-containing layer face each other via the lithium ion conductive layer and the porous layer. |
| US11251413B2 |
Method for fabricating display panel, display panel and display device
Embodiments of the present disclosure disclose a method for fabricating a display panel, the display panel and a display device. The method for fabricating a display panel includes: forming a plurality of pixel units in a display area of a base substrate; forming at least one circle of blocking dam in a hollow area of the base substrate; forming a film packaging layer covering the display area and the hollow area, the hollow area being surrounded by the display area; forming an auxiliary heat radiation structure in the hollow area of the base substrate, the auxiliary heat radiation structure being located at a side, facing away from the base substrate, of the film packaging layer; cutting along a cutting line in the hollow area in a laser cutting process to remove the base substrate in the hollow area; and radiating heat by virtue of the auxiliary heat radiation structure. |
| US11251408B2 |
Display device with roof layer
A display device includes a substrate; a display element disposed on the substrate and including a pixel electrode, an opposite electrode, and an emission layer between the pixel electrode and the opposite electrode; and a roof layer defining an air cavity. The air cavity is disposed around the display element. A refractive index of the roof layer is greater than a refractive index of the air defined by the air cavity. |
| US11251406B2 |
Borosilicate light extraction region
The invention relates to a light extraction substrate having a light extraction layer. The light extraction layer includes boron, boroate, and/or borosilicate as well as nanoparticles. |
| US11251405B2 |
Organic light emitting diode display panel with barrier film package bag and fabricating method thereof
The present invention provides an organic light emitting diode display panel and a fabricating method thereof. The organic light emitting diode display panel includes a lower substrate, having one side extending to form a signal path; an upper cover plate on the lower substrate, wherein a lower surface of the upper cover plate is connected to an upper surface of the lower substrate; and a barrier film package bag enclosing the upper cover plate and the lower substrate from a side away from the signal channel. The method of fabricating the OLED display panel includes following steps: forming a lower substrate; forming an upper cover plate; bonding the upper cover plate to the lower substrate; and packaging the display panel to be packaged by vacuum thermocompression. The present invention simplifies the packaging of the OLED display panel and can meet the package requirements of various types of OLED display panels. |
| US11251404B2 |
Electroluminescent device having light transmitting region of non-through-hole structure
An electroluminescent device including a lower substrate; a lower structure; and an upper encapsulation structure, in which the lower structure has a light transmitting region and a substantially opaque display region, the lower structure has an inorganic surface portion, the upper encapsulation structure has an inorganic lower surface in contact with the inorganic surface portion to form an inorganic-inorganic encapsulation contact region, and the electroluminescent device does not have a hole formed through both the lower substrate and the lower structure, a portion of the upper encapsulation structure, the portion being corresponding to the light transmitting region, is not removed, and the portion of the upper encapsulation structure is substantially surrounded by the inorganic-inorganic encapsulation contact region in a plan view. |
| US11251403B2 |
Display substrate, display apparatus, and method of fabricating display substrate
The present application provides display substrate having a display area and a peripheral area. The display substrate includes a base substrate; a plurality of light emitting elements on the base substrate and in the display area; an encapsulating layer on a side of the plurality of light emitting elements distal to the base substrate to encapsulate the plurality of light emitting elements; and a first barrier layer on the base substrate and in the peripheral area and forming a first enclosure substantially surrounding a first area. The first barrier layer includes an up-conversion material configured to convert an incident light into an ultraviolet light. The encapsulating layer includes a first organic encapsulating sub-layer on the base substrate. |
| US11251402B2 |
Thin-film encapsulation structures, manufacturing methods, and display apparatus therewith
A thin-film encapsulation structure includes a number of inorganic film layers and at least one organic film layer laminated alternately at one side of an organic light-emitting diode. The number of inorganic film layers include N inorganic film layers including first to N-th inorganic film layers arranged sequentially from inside to outside, N≥2. At least the first inorganic film layer has a refractive index increasing gradually from inside to outside. |
| US11251398B2 |
Organic light emitting diode display panel and display apparatus, fabricating method thereof
An organic light emitting diode display panel includes a base substrate; a pixel definition layer for defining a plurality of subpixels on the base substrate; a plurality of organic light emitting diodes respectively in the plurality of subpixels; and a first inorganic encapsulating layer between the base substrate and the pixel definition layer configured to encapsulate the plurality of organic light emitting diodes in the plurality of subpixels. The pixel definition layer includes a plurality of pixel definition blocks spaced apart from each other. The first inorganic encapsulating layer includes a plurality of first inorganic encapsulating blocks, each of the plurality of first inorganic encapsulating blocks is between the base substrate and one of the plurality of pixel definition blocks and configured to encapsulate one of the plurality of organic light emitting diodes in one of the plurality of subpixels. |
| US11251396B2 |
Organic light emitting diode display
An organic light emitting diode display is disclosed. The organic light emitting diode display includes: a substrate, an organic light emitting diode positioned on the substrate, a metal layer positioned on the substrate with the organic light emitting diode interposed therebetween, and a resin layer positioned on the metal layer and configured to reinforce a strength of the metal layer. |
| US11251395B2 |
Apparatus and method for manufacturing display device
A method for manufacturing a display device includes the steps of: placing a panel having a first portion and a second portion on a deformable pad having a core member and placing a cover window on the panel; and moving the core member disposed inside the pad from the first portion to the second portion of the panel and pressing the panel to bond the cover window to the panel. |
| US11251394B2 |
Organic light emitting display and method of fabricating the same
An organic light emitting display can include light emitting elements disposed on a substrate; an encapsulation unit disposed on the light emitting elements; touch sensors disposed on the encapsulation unit; first conductive lines connected to the touch sensors; second conductive lines connected to the first conductive lines; and at least one insulating film formed of at least one of an inorganic film or an organic film and disposed between the first and second conductive lines. |
| US11251392B2 |
Display substrate and preparation method thereof, display device and preparation method thereof and display apparatus
A display substrate and a preparation method thereof, a display device and a preparation method thereof and a display apparatus are proposed in the disclosure. The preparation method of the display substrate includes: providing a flexible base, an upper surface thereof having a display area and a circuit connection area, and a portion of the flexible base including a bending portion and a connection portion; disposing a groove on the lower surface, and an orthographic projection of the groove on the upper surface corresponding to a position of an orthographic projection of the bending portion on the upper surface; disposing a back plate, an OLED light emitting device and a package structure in a sequence on the display area, and disposing a circuit connection layer on the circuit connection area. Bending the bending portion downward to extend, the connection portion is located on a side of the lower surface. |
| US11251391B2 |
Light emitting diode and electroluminescent display device including the same
A light emitting diode comprises first and second electrodes facing each other; a first charge generation layer between the first and second electrodes; a first emitting stack including a first emitting material layer between the first electrode and the first charge generation layer and a first electron transporting layer between the first emitting material layer and the first charge generation layer; and a second emitting stack including a second emitting material layer between the first charge generation layer and the second electrode and a second electron transporting layer between the second emitting material layer and the second electrode, wherein the first charge generation layer has an electron mobility lower than that of the first electron transporting layer. |
| US11251390B2 |
Light emitting device and display device including the same
A light emitting device including a first electrode and a second electrode, and an emission layer disposed between the first electrode and the second electrode and including quantum dots, a first charge auxiliary layer disposed between the emission layer and the first electrode, and a second charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer comprises a first emission layer contacting the first charge auxiliary layer, a second emission layer disposed on the first emission layer, and a third emission layer disposed on the second emission layer. The hole mobility of the first emission layer decreases sequentially from the first emission layer to the third emission layer. |
| US11251389B2 |
Quantum dot, quantum dot light emitting diode and quantum dot display device
A quantum dot, a quantum dot light emitting diode and a quantum dot display device are discussed. The quantum dot includes a first core including a first semiconductor material, a first shell positioned at an outer side of the first core and including a second semiconductor material, and a second core positioned between the first core and the first shell and including one of the first and second semiconductor materials and a doping metal. |
| US11251385B2 |
Inexpensive, earth-abundant, tunable hole transport material for CdTe solar cells
Hole transport layers, electron transport layers, layer stacks, and optoelectronic devices involving perovskite materials and materials used as precursors, and methods of making the same, are described. |
| US11251380B2 |
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
An organic electroluminescence device and a polycyclic compound used for the organic electroluminescence device are provided. The polycyclic compound according to an embodiment of the inventive concept is represented by Formula 1. In Formula 1, Y is B, P═O, or P═S, and X is SiR3R4, or GeR5R6. At least one of R1 or R2 is NAr2Ar3. |
| US11251373B2 |
High molecular weight compound containing substituted triarylamine structural unit
A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), where AR1, AR2, and L each independently represent a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, n is an integer of 1 to 3, Ar1 and Ar2 each independently represent an aryl group or a heteroaryl group, and R1, R2, and R3 each independently represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aryloxy group, or a heteroaryl group. |
| US11251370B1 |
Projected memory device with carbon-based projection component
A projected memory device includes a carbon-based projection component. The device includes two electrodes, a memory segment, and a projection component. The projection component and the memory segment form a dual element that connects the two electrodes. The projection component extends parallel to and in contact with the memory segment. The memory segment includes a resistive memory material, while the projection component includes a thin film of non-insulating material that essentially comprises carbon. In a particular implementation, the non-insulating material and the projection component essentially comprises amorphous carbon. Using carbon and, in particular, amorphous carbon, as a main component of the projection component, allows unprecedented flexibility to be achieved when tuning the electrical resistance of the projection component. |
| US11251369B2 |
Semiconductor constructions
Some embodiments include constructions having electrically conductive bitlines within a stack of alternating electrically conductive wordline levels and electrically insulative levels. Cavities extend into the electrically conductive wordline levels, and phase change material is within the cavities. Some embodiments include methods of forming memory. An opening is formed through a stack of alternating electrically conductive levels and electrically insulative levels. Cavities are extended into the electrically conductive levels along the opening. Phase change material is formed within the cavities, and incorporated into vertically-stacked memory cells. An electrically conductive interconnect is formed within the opening, and is electrically coupled with a plurality of the vertically-stacked memory cells. |
| US11251367B2 |
Composite multi-stack seed layer to improve PMA for perpendicular magnetic pinning
The invention comprises a novel composite multi-stack seed layer (CMSL) having lattice constant matched crystalline structure with the Co layer in above perpendicular magnetic pinning layer (pMPL) so that an excellent epitaxial growth of magnetic super lattice pinning layer [Co/(Pt, Pd or Ni)]n along its FCC (111) orientation can be achieved, resulting in a significant enhancement of perpendicular magnetic anisotropy (PMA) for perpendicular spin-transfer-torque magnetic-random-access memory (pSTT-MRAM) using perpendicular magnetoresistive elements as basic memory cells which potentially replace the conventional semiconductor memory used in electronic chips, especially mobile chips for power saving and non-volatility. |
| US11251359B2 |
Piezoelectric capacitor
A piezoelectric capacitor includes A) a composite article that has 1) a dry piezoelectric layer (dry PL); 2) a first dry electrode comprising a dry electrically-conductive layer arranged contiguously with a first opposing surface of the dry PL; and 3) a second dry electrode arranged contiguously with a second opposing surface of the dry PL. The dry electrically-conductive layer has essentially (a) an electrically-conductive material; and (b) particles having a Young's modulus that is different from the Young's modulus of the (a) electrically-conductive material by at least 10%. The capacitor also has B) electrical communication means attached to both electrodes for electrical communication of the composite article with an external electrical circuit. |
| US11251352B2 |
Wiring board, and light emitting device using the wiring board
A wiring board according to one embodiment of the present disclosure includes: partitions each having insulating property; and conductive members that are respectively disposed in at least two adjacent regions among a plurality of regions partitioned by the partitions. Two of the conductive members respectively disposed in the adjacent regions are joined to each other through an opening formed on one of the partitions interposed between the two of the conductive members, to serve as part of a wiring. |
| US11251350B2 |
Light-emitting diode package and manufacturing method thereof
A light-emitting diode package including a carrier structure, a patterned conductive layer, at least one chip, a dielectric layer, at least one first conductive via, a build-up circuit structure, and at least one light-emitting diode is provided. The patterned conductive layer is disposed on the carrier structure. The chip is disposed on the carrier structure. The dielectric layer is disposed on the carrier structure and encapsulates the chip and the patterned conductive layer. The first conductive via penetrates the dielectric layer and is electrically connected to the patterned conductive layer. The build-up circuit structure is disposed on the dielectric layer and electrically connected to the first conductive via. The light-emitting diode is disposed on the build-up circuit structure. |
| US11251349B2 |
Tube lamp with leadframe
A light fixture has a translucent tubular bulb. At least one end cap is located at one end of the translucent tubular bulb. A light engine is disposed in the translucent tubular bulb. The light engine has a leadframe on which a plurality of semiconductor light elements is arranged. The fixture may include an electronic driver. The electronic driver includes a plurality of electronic components. At least one of the plurality of electronic components is arranged inside the transparent tubular bulb. |
| US11251344B2 |
White light emitting module
Systems and methods are described for a white light emitting module that emits a third white light with the goal of providing human-friendly illumination. The white light emitting device comprise a first light emitting package that emits a first white light and a second light emitting package that emits a second white light. The first light emitting package includes a first light emitting device and a filter member that filters light emitted from the first light emitting device and then reduces a color temperature of the first white light. The second light emitting package includes second and third light devices. The color temperature of the first white light is about 1,500 K to about 4,000 K. A color temperature of the second white light is about 3,000 K to 10,000 K. |
| US11251343B2 |
LED design of lower CCT utilizing PFS phosphor
An LED assembly includes an LED light source having a first light output with a characteristic spectrum, and a yellow-green phosphor, red phosphor, and neodymium fluorine absorber combination through which the first light output passes, wherein the yellow-green phosphor, red phosphor, and neodymium fluorine absorber combination is configured to convert the first light output to a second light output having a predetermined correlated color temperature. |
| US11251342B2 |
Stabilized fluoride phosphor for light emitting diode (LED) applications
A stabilized fluoride phosphor for light emitting diode (LED) applications includes a particle comprising manganese-activated potassium fluorosilicate and an inorganic coating on each of the particles. The inorganic coating comprises a silicate. A method of making a stabilized fluoride phosphor comprises forming a reaction mixture that includes particles comprising a manganese-activated potassium fluorosilicate; a reactive silicate precursor; a catalyst; a solvent; and water in an amount no greater than about 10 vol. %. The reaction mixture is agitated to suspend the particles therein. As the reactive silicate precursor undergoes hydrolysis and condensation in the reaction mixture, an inorganic coating comprising a silicate is formed on the particles. Thus, a stabilized fluoride phosphor is formed. |
| US11251339B2 |
Process for fabricating an optoelectronic device for emitting infrared light comprising a GeSn-based active layer
A process for fabricating an optoelectronic device for emitting infrared radiation, including: i) producing a first stack containing a light source, and a first bonding sublayer made from a metal of interest chosen from gold, titanium and copper, ii) producing a second stack containing a GeSn-based active layer obtained by epitaxy at an epitaxy temperature (Tepi), and a second bonding sublayer made from the metal of interest, iii) determining an assembly temperature (Tc) substantially between an ambient temperature (Tamb) and the epitaxy temperature (Tepi), such that a direct bonding energy per unit area of the metal of interest is higher than or equal to 0.5 J/m2; and iv) joining, by direct bonding, at the assembly temperature (Tc), the stacks. |
| US11251337B2 |
Display apparatus
The present disclosure relates to a display device, and more particularly, to a display device including a plurality of pixels on a base layer and a first light-emitting element and a second light-emitting element, which are provided on a first pixel of the pixels. Here, each of the first and second light-emitting elements includes a first surface and a second surface opposite to the first surface, the first surface of the first light-emitting element faces the base layer, and the second surface of the second light-emitting element faces the base layer. |
| US11251334B2 |
Method of manufacturing light emitting devices
A method of manufacturing light emitting devices, the method including: providing a first structure, the providing a first structure including: providing a lead frame, the providing a lead frame including: providing a metal plate having a plurality of pairs of first and second metal parts, each of the first and second metal parts including at least one first region and at least one second region; using an electrodeposition technique, disposing a mask of a resist film on the at least one first region; disposing a first plating containing silver or silver alloy on the at least one second region; and removing the resist film; molding a resin molded body in one piece with the lead frame with parts of a lower surface of the lead frame being exposed, in which, the first structure includes an upper surface defining a plurality of recesses each having an upward-facing surface, at least parts of the first plating being located at the upward-facing surface of each of the plurality of recesses; providing a second structure, the providing a second structure including: disposing at least one light-emitting element on the first plating located at the upward-facing surface of each of the plurality of recesses; and disposing a sealing member covering the at least one light-emitting element in each of the plurality of recesses; and separating the second structure into a plurality of individual light emitting devices. |
| US11251333B2 |
Display apparatus
Provided is a display apparatus including a chassis and a display panel installed on the chassis. The display panel includes a substrate and an inorganic light emitting element. The chassis includes a base plate including a mounting groove, and a bracket coupled to and received in the mounting groove. A rear surface of the substrate is attached to the bracket through an adhesive member. |
| US11251332B2 |
Method for manufacturing light-emitting element
A method for manufacturing a light-emitting element includes exposing a portion of an insulating layer from under a metal layer and a semiconductor layer by removing, through an opening of a resist layer, a portion of the metal layer and a portion of the semiconductor layer by wet etching using a first etchant, etching rates of the first etchant for the metal layer and the semiconductor layer each being higher than an etching rate of the first etchant for the insulating layer; removing the resist layer by wet etching after the removing of the metal layer portion and the semiconductor layer portion; and after the removing of the resist layer, removing a remaining portion of the metal layer while causing the insulating layer exposed from under the metal layer and the semiconductor layer to remain. The opening of the resist layer is positioned directly on the conductive layer. |
| US11251329B2 |
Method of transferring a plurality of micro light emitting diodes to target substrate, array substrate, display apparatus
A method of transferring a plurality of mero light emitting diodes (micro LEDs) to a target substrate s provided. The method includes providing a plurality of transfer strips, a respective one of the plurality of transfer strips including a plurality of holding cells sequentially arranged along a first direction; transferring a plurality of micro LEDs onto the plurality of holding cells of the plurality of transfer strips; and aligning the plurality of transfer strips having the plurality of micro LEDs transferred thereon with respect to each other, to form an array of micro LEDs in which micro LEDs from different transfer strips of the plurality of transfer strips we aligned along a second direction and micro LEDs from a same transfer strip of the plurality of transfer strips are aligned along the first direction, the second direction being different from the first direction. |
| US11251325B2 |
Photovoltaic device and method for manufacturing the same
A photovoltaic device is proposed comprising a silicon-based substrate (2) having a p-type or n-type doping, with an intrinsic buffer layer (4) situated on said substrate. A first silicon layer (6) of a first doping type is situated on predetermined regions (4a) of the intrinsic buffer layer. The first layer has interstices (5) between said predetermined regions (4a). The first silicon layer comprises at least partially a microcrystalline layer at its side away from the substrate. A microcrystalline silicon layer (8) of a second doping type is situated on said first silicon layer (6). A third silicon layer (10) of the second doping type is situated on said intrinsic buffer layer at the interstices, the third silicon layer being amorphous at its side facing said silicon-based substrate and comprising an at least partially microcrystalline layer portion to the side away from the intrinsic buffer layer. |
| US11251318B2 |
Efficient black silicon photovoltaic devices with enhanced blue response
A photovoltaic (PV) device with improved blue response. The PV device includes a silicon substrate with an emitter layer on a light receiving side. The emitter layer has a low opant level such that it has sheet resistance of 90 to 170 ohm/sq. Anti-reflection in the PV device is provided solely by a nano-structured or black silicon surface on the light-receiving surface, through which the emitter is formed by diffusion. The nano structures of the black silicon are formed in a manner that does not result in gold or another high-recombination metal being left in the black silicon such as with metal-assisted etching using silver. The black silicon is further processed to widen these pores so as to provide larger nanostructures with lateral dimensions in the range of 65 to 150 nanometers so as to reduce surface area and also to etch away a highly doped portion of the emitter. |
| US11251317B2 |
Photodiode including an additional depletion region for sensitivity control and method of creating the same
The present disclosure is directed to a diode including a first doped structure, doped with a first type of material and forming at least part of an isolation structure for the diode; at least one contact structure located within the first doped structure, the at least one contact structure forming one of the cathode or anode of the diode; a second doped structure, doped with a second type of material, and forming at least one depletion region or PN junction with the first doped structure; at least one second contact structure located within the second doped structure, the at least one second contact structure forming the other of the anode or the cathode of the diode; at least one further contact structure, doped with the first type of material, the at least one further contact structure forming at least one further depletion region or further PN junction, such that the at least one further depletion region is configured to steer charge from the at least one depletion region and thus decrease the sensitivity of the diode. |
| US11251315B2 |
Solar cells with improved lifetime, passivation and/or efficiency
A method of fabricating a solar cell can include forming a dielectric region on a silicon substrate. The method can also include forming an emitter region over the dielectric region and forming a dopant region on a surface of the silicon substrate. In an embodiment, the method can include heating the silicon substrate at a temperature above 900 degrees Celsius to getter impurities to the emitter region and drive dopants from the dopant region to a portion of the silicon substrate. |
| US11251311B2 |
Thin-film transistor, method of manufacturing the same, and display apparatus
A thin-film transistor, method of manufacturing the same, and a display apparatus are provided. The thin-film transistor includes a first active layer, a source, a drain, a gate, and a second active layer, the source, the drain, the gate are disposed on the first active layer with spacing, the gate is located between the source and the drain, the second active layer is disposed on the gate, the source, and the drain, the source and the drain are both respectively connected to the first active layer and the second active layer, and the gate is respectively insulated from the first active layer, the second active layer, the source, and the drain. When a voltage is applied to the gate, the source and the drain may be conducting via the first and second active layer. Therefore, a larger current may flow between the source and the drain. |
| US11251310B2 |
Oxide semiconductor film, electronic device comprising thin film transistor, oxide sintered body and sputtering target
An oxide semiconductor film contains In, Ga, and Sn at respective atomic ratios of 0.01≤Ga/(In+Ga+Sn)≤0.30 . . . (1), 0.01≤Sn/(In+Ga+Sn)≤0.40 . . . (2), and 0.55≤In/(In+Ga+Sn)≤0.98 . . . (3), and a rare-earth element X at an atomic ratio of 0.03≤X/(In+Ga+Sn+X)≤0.25 . . . (4). |
| US11251308B2 |
Semiconductor device and method
In an embodiment, a device includes: a first interconnect structure including metallization patterns; a second interconnect structure including a power rail; a device layer between the first interconnect structure and the second interconnect structure, the device layer including a first transistor, the first transistor including an epitaxial source/drain region; and a conductive via extending through the device layer, the conductive via connecting the power rail to the metallization patterns, the conductive via contacting the epitaxial source/drain region. |
| US11251299B2 |
Silicon carbide semiconductor device and manufacturing method of same
A drift layer made of silicon carbide has a first conductivity type. A body region on the drift layer has a second conductivity type. A source region on the body region has the first conductivity type. A gate insulating film is on each inner wall of at least one trench. A protective layer has at least a portion below the trench, is in contact with the drift layer, and has the second conductivity type. A first low-resistance layer is in contact with the trench and the protective layer, straddles a border between the trench and the protective layer in the depth direction, has the first conductivity type, and has a higher impurity concentration than the drift layer. A second low-resistance layer is in contact with the first low-resistance layer, is away from the trench, has the first conductivity type, and has a higher impurity concentration than the first low-resistance layer. |
| US11251297B2 |
Shielded gate trench MOSFET devices
A shielded gate trench MOSFET device structure is provided. The device structure includes MOS gate trenches and p body contact trenches formed in an n type epitaxial silicon layer overlying an n+ silicon substrate. Each MOS gate trench includes a gate trench stack having a lower n+ shield poly silicon layer separated from an upper n+ gate poly silicon layer by an inter poly dielectric layer. The upper and lower poly silicon layers are also laterally isolated at the areas where the lower poly silicon layer extends to silicon surface by selectively removing portion of the upper poly silicon and filling the gap with a dielectric material. The method is used to form both MOS gate trenches and p body contact trenches in self-aligned or non self-aligned shielded gate trench MOSFET device manufacturing. |
| US11251295B1 |
Vertical field effect transistor device and method of fabrication
A method and vertical FET device fabricated in GaN or other suitable material. The device has a selective area implant region comprising an activated impurity configured from a bottom portion of a recessed regions, and substantially free from ion implant damage by using an annealing process. A p-type gate region is configured from the selective area implant region, and each of the recessed regions is characterized by a depth configured to physically separate an n+ type source region and the p-type gate region such that a low reverse leakage gate-source p-n junction is achieved. An extended drain region is configured from a portion of an n− type GaN region underlying the recessed regions. An n+ GaN region is formed by epitaxial growth directly overlying the backside region of the GaN substrate and a backside drain contact region configured from the n+ type GaN region overlying the backside region. |
| US11251291B2 |
Silicon carbide semiconductor device
A silicon carbide semiconductor device includes first semiconductor areas and second semiconductor areas. The first semiconductor areas have a first semiconductor layer of a second conductivity type, a second semiconductor layer of a first conductivity type, first semiconductor regions of the second conductivity type, second semiconductor regions of the first conductivity type, gate electrodes, and first electrodes. The second semiconductor areas have the first semiconductor layer, the second semiconductor layer, third semiconductor regions of the second conductivity type, the gate electrodes, and the first electrodes. The first semiconductor regions include low- impurity-concentration regions and high-impurity-concentration regions. The third semiconductor regions have a potential equal to that of the first electrodes. The first semiconductor regions are connected to the third semiconductor regions by MOS structures. In the first semiconductor regions, the high-impurity-concentration regions are provided at positions different from positions facing the first electrodes. |
| US11251285B2 |
Approach to control over-etching of bottom spacers in vertical fin field effect transistor devices
A method of forming a vertical fin field effect transistor device, including, forming one or more vertical fins with a hardmask cap on each vertical fin on a substrate, forming a fin liner on the one or more vertical fins and hardmask caps, forming a sacrificial liner on the fin liner, and forming a bottom spacer layer on the sacrificial liner. |
| US11251282B2 |
Power semiconductor device
In order to provide a power semiconductor device reducing a leakage current due to a defect layer and having a small fluctuation in a threshold voltage, included are an n-type epitaxial film layer formed on a surface of the single crystal n-type semiconductor substrate and having a concave portion and a convex portion; an insulating film formed on a first region in a top portion of the convex portion; a p-type thin film layer formed on a surface of the insulating film and a surface of the n-type epitaxial film layer to form a pn junction between the p-type thin film layer and the n-type epitaxial film layer; and an anode electrode, at least part of which is formed on a surface of the p-type thin film layer and part of which passes through the p-type thin film layer and the insulating film. |
| US11251276B2 |
LDMOS transistor and method for manufacturing the same
An LDMOS transistor can include: a field oxide layer structure adjacent to a drain region; and at least one drain oxide layer structure adjacent to the field oxide layer structure along a lateral direction, where a thickness of the drain oxide layer structure is less than a thickness of the field oxide layer, and at least one of a length of the field oxide layer structure and a length of the drain oxide layer structure is adjusted to improve a breakdown voltage performance of the LDMOS transistor. |
| US11251274B2 |
Field plate semiconductor device
A semiconductor device includes a substrate; a semiconductor structure arranged on the substrate, the semiconductor structure including at least one first semiconductor layer; an insulator layer arranged on the semiconductor structure; a field plate covering a part of the insulator layer, wherein the insulator layer includes a non-linear dielectric material having a permittivity that decreases as an electric field traversing the dielectric material increases. |
| US11251273B2 |
Non-volatile memory device and method for manufacturing the same
A non-volatile memory device and its manufacturing method are provided. The method includes the following steps. A plurality of isolation structures are formed in a substrate. A first polycrystalline silicon layer is formed in the substrate and between two adjacent isolation structures. A first implantation process is performed to implant a first dopant into the first polycrystalline silicon layer and the isolation structures. A portion of each of the isolation structures is partially removed, and the remaining portion of each of the isolation structures has a substantially flat top surface. An annealing process is performed after partially removing the isolation structures to uniformly diffuse the first dopant in the first polycrystalline silicon layer. A dielectric layer is formed on the first polycrystalline silicon layer, and a second polycrystalline silicon layer is formed on the dielectric layer. |
| US11251266B2 |
Power semiconductor device and method of processing a power semiconductor device
A power semiconductor device includes a semiconductor body having a drift region of a first conductivity type inside an active region. An edge termination region includes: a guard region of a second conductivity type at a front side of the semiconductor body and surrounding the active region; and a field plate trench structure extending vertically into the body from the front side and at least partially filled with a conductive material that is electrically connected with the guard region and insulated from the body external of the guard region. A first portion of the field plate trench structure at least partially extends into the guard region and is at least partially arranged below a metal layer arranged at the front side. A second portion of the field plate trench structure extends outside of the guard region and surrounds the active area, the metal layer not extending above the second portion. |
| US11251265B2 |
Carrier for a semiconductor structure
A support for a semiconductor structure includes a charge-trapping layer on a base substrate. The charge-trapping layer consists of a polycrystalline main layer and, interposed in the main layer or between the main layer and the base substrate, at least one intermediate polycrystalline layer composed of a silicon and carbon alloy or carbon. The intermediate layer has a resistivity greater than 1000 ohm·cm. |
| US11251261B2 |
Forming a barrier material on an electrode
Methods, apparatuses, and systems related to forming a barrier material on an electrode are described. An example method includes forming a top electrode of a storage node on a dielectric material in a semiconductor fabrication sequence and forming, in-situ in a semiconductor fabrication apparatus, a barrier material on the top electrode to reduce damage to the dielectric material when ex-situ of the semiconductor fabrication apparatus. |
| US11251258B2 |
Display apparatus
A display apparatus includes a substrate including a display area including a main display area and an edge display area extended directly from a side of the main display area, and a peripheral area outside the display area and including a pad area through which electrical signals are applied to the display area; and in the peripheral area, a plurality of wirings between the display area and the pad area and through which the electrical signals are transmitted from the pad area to the display area, the plurality of wirings including: a first wiring through which an electrical signal is transmitted from the pad area to the main display area, and a second wiring through which an electrical signal is transmitted from the pad area to the edge display area, where an electrical resistance per unit length of the first wiring is greater than that of the second wiring. |
| US11251256B2 |
Display apparatus
A display apparatus includes a substrate including a display area and a peripheral area outside the display area, display elements arranged at the display area, an encapsulation layer covering the display elements, a sensor electrode layer arranged over the encapsulation layer, and a first connection wire group arranged in the peripheral area to be arranged between the display area and a first edge of the substrate, arranged outside the encapsulation layer, and including first connection wires, wherein a first distance from a first portion of an end of the encapsulation layer facing the first edge to the first edge is greater than a second distance from a second portion of the end of the encapsulation layer facing the first edge to the first edge, and wherein the first portion corresponds to the first connection wire group, and the second portion is different from the first portion. |
| US11251255B2 |
Flexible display device including bridges around island base
The present inventive concept relates to a display device. A display device according to an exemplary embodiment of the present inventive concept include: a base layer including a plurality of islands in which a pixel is disposed, a plurality of bridges disposed around each of the plurality of islands, a plurality of first wires disposed in a bridge of the plurality of bridges connected to the pixel is disposed; an inorganic insulating layer disposed on the base layer and having an opening exposing a portion of the bridge; and an organic material layer covering the opening, wherein adjacent islands of the plurality of islands are connected to each other through at least the bridge of the plurality of bridges, and the plurality of first wires are disposed on the organic material layer. |
| US11251252B2 |
Organic light emitting display apparatus
An organic light emitting display apparatus can include a substrate including a display area and a bending area, a routing wiring disposed in the bending area of the substrate, and an oxide thin layer disposed between the substrate and the routing wiring. |
| US11251249B2 |
Display panel, display apparatus, display substrate, and method of fabricating display panel and display apparatus
The present application provides a display panel having a plurality of subpixels. The display panel includes an array substrate including an array of a plurality of first thin film transistors respectively in the plurality of subpixels for driving light emission of the display panel; a counter substrate facing the array substrate and having a plurality of subpixel areas respectively in the plurality of subpixels; and an optical compensation device for adjusting in real time actual light emitting brightness values of the plurality of subpixel areas to target brightness values. The optical compensation device includes a plurality of actual light emitting brightness value detectors integrated in the counter substrate and respectively in the plurality of subpixel areas. |
| US11251245B1 |
Responding to a failure of a main die of a switch data-plane device
A method for responding to a failure of a main die of a switch data-plane device, the method may include applying a secondary packet forwarding process by multiple chiplets, following the failure of the main die and during at least a part of an execution of a synchronous graceful process that follows the failure of the main die; wherein the multiple chiplets are interconnected to each other by a secondary interconnect; wherein the multiple chiplets and are coupled to the main die by a primary interconnect; wherein the applying of the secondary packet forwarding process is less complex than a primary forwarding process applied by the main die while the main die is functional. |
| US11251243B2 |
Organic light emitting display device
The present disclosure provides an organic light-emitting display device having a plurality of pixels arranged along first and second directions that intersect each other. Each of the pixels includes: a transistor; at least one insulating layer on the transistor, and a pixel contact hole extends through the insulating layer and exposes part of the transistor; a first electrode on the at least one insulating layer and connected to the transistor via the pixel contact hole; and a filling layer on the first electrode and filling the pixel contact hole. A first bank has a plurality of first openings, and each of the first openings exposes at least one of the first electrodes. A second bank has a plurality of second openings, and each of the second openings exposes a plurality of the first electrodes arranged along the second direction. |
| US11251235B2 |
Display panel
A display panel may include a substrate, pixels, dummy pixels, and voltage lines. The substrate may include a first transmission region for light transmission and/or sound transmission, a non-display area surrounding the first transmission region, and a display area surrounding the non-display area. The pixels may be arranged on the display area and may emit light. The dummy pixels may be arranged on the non-display area, may include a first dummy pixel, and may emit no light. The voltage lines may transmit voltages to the pixels and the dummy pixels. The voltage lines may include a first voltage line and a second voltage line. The first voltage line may be spaced from the second voltage line, may be aligned with the second voltage line, and may overlap the first dummy pixel. The first transmission region may be positioned between the first voltage line and the second voltage line. |
| US11251230B2 |
Organic EL display device
An organic EL display device includes at least one light emitting unit that includes a first electrode, an organic film that includes a light emitting layer and is provided over the first electrode, and a second electrode that is provided over the organic film and transmits light from the light emitting layer, and an optical adjusting layer that covers the at least one light emitting unit. The optical adjusting layer in a first area that overlaps the at least one light emitting unit in a planar view and the optical adjusting layer in at least one second area that is adjacent to the first area are different from each other in at least one of a number of layers that the optical adjusting layer includes, a film thickness, and a refractive index. |
| US11251228B2 |
Optical receiver package with backside lens-integrated photodetector die
Optical receiver packages and device assemblies that include photodetector (PD) chips having focus lenses monolithically integrated on PD die backsides are disclosed. An example receiver package includes a support structure, a PD die, and an optical input device. The PD die includes a PD, integrated proximate to a first face of the PD die, and further includes a lens, integrated on, or proximate to, an opposite second face. The first face of the PD die faces the support structure, while the second face (“backside”) faces the optical input device. The optical receiver architectures described herein may provide an improvement for the optical alignment tolerance issues, especially for high-speed operation in which the active aperture of the PD may have to be very small. Furthermore, architectures described herein advantageously enable integrating a focus lens in a PD die that may be coupled to the support structure in a flip-chip arrangement. |
| US11251225B2 |
Light emitting diode module, display panel having the same and method of manufacturing the same
In some examples, a semiconductor device may comprise a semiconductor chip including a plurality of pixels, each pixel formed of a plurality of sub-pixels, such as a red sub-pixel, green sub-pixel and blue sub-pixel. Each sub-pixel may comprise a light emitting diode. A first signal line may connect to signal terminals of a first group sub-pixels (e.g., arranged in the same row), and a second signal line may connect to common terminals of a second group of sub-pixels (e.g., arranged in the same column). The number of chip pads may thus be reduced to provide increased design flexibility in location and/or allowing an increase in chip pad size. In some examples, a light transmissive material may be formed in openings of a semiconductor growth substrate on which light emitting cells of the sub-pixels were grown. The light transmissive material of some of the sub-pixels may comprise a wavelength conversion material and/or filter. Exemplary display panels and methods of manufacturing semiconductor devices and display panels are also disclosed. |
| US11251224B2 |
Display device and method of fabricating the same
A method of fabricating a display device includes providing a display substrate with a plurality of pixels, mounting an encapsulation substrate on the display substrate, bonding the display substrate and the encapsulation substrate to form a display panel, and forming a module hole penetrating a hole region of the display panel in the display panel. The hole region encloses the module hole, and the display substrate and the encapsulation substrate may be bonded by irradiating the hole region with an ultra-high-frequency pulsed laser. The display substrate and the encapsulation substrate are bonded in the hole region as the ultra-high-frequency pulsed laser is irradiated onto the hole region. |
| US11251223B2 |
Array substrate, method of manufacturing the same, and display device
An array substrate includes a base substrate, a thin film transistor on the base substrate, including a gate electrode connected to a gate line, an active layer, a gate insulating layer insulating the gate electrode from the active layer, a first electrode connected to a data line, and a second electrode spaced apart from the first electrode, and a micro light emitting diode on the base substrate, including a first electrode, a first buffer layer, a light emitting layer, and a second electrode, which are stacked on top of each other. The first buffer layer is in a same layer as the active layer. The second electrode of the thin film transistor is connected to one of the first electrode of the micro light emitting diode or the second electrode of the micro light emitting diode. |
| US11251214B2 |
Asymmetrically positioned guard ring contacts
According to an embodiment, a device comprises a direct conversion compound semiconductor layer configured to convert high energy radiation photons into an electric current, the direct conversion compound semiconductor layer comprising: a pixel array positioned in the direct conversion compound semiconductor layer, including pixels located at an outermost circumference, wherein the pixels comprise signal pads; a guard ring encircling the pixel array, wherein the pixels at the outermost circumference are closest to the guard ring; guard ring contact pads, wherein the guard ring contact pads are situated in place of some of the pixel signal pads at the outermost circumference and connected to the guard ring; wherein the guard ring contact pads are further situated asymmetrically with respect to a symmetry x-axis and a symmetry y-axis of the direct conversion compound semiconductor layer. Other embodiments relates to a detector comprising an array of tiles according to the device, and an imaging system comprising: an x-ray source and the detector. |
| US11251213B2 |
Concave reflector for complementary metal oxide semiconductor image sensor (CIS)
In some embodiments, the present disclosure relates to an integrated chip having an inter-layer dielectric (ILD) structure along a first surface of a substrate having a photodetector. An etch stop layer is over the ILD structure, and a reflector is surrounded by the etch stop layer and the ILD structure. The reflector has a curved surface facing the substrate at a location directly over the photodetector. The curved surface is coupled between a first sidewall and a second sidewall of the reflector. The reflector has larger thicknesses along the first sidewall and the second sidewall than at a center of the reflector between the first sidewall and the second sidewall. |
| US11251212B2 |
Solid-state imaging device, method of manufacturing the same, and electronic equipment
A solid state imaging device including a semiconductor layer comprising a plurality of photodiodes, a first antireflection film located over a first surface of the semiconductor layer, a second antireflection film located over the first antireflection film, a light shielding layer having side surfaces which are adjacent to at least one of first and the second antireflection film. |
| US11251201B2 |
High voltage three-dimensional devices having dielectric liners
High voltage three-dimensional devices having dielectric liners and methods of forming high voltage three-dimensional devices having dielectric liners are described. For example, a semiconductor structure includes a first fin active region and a second fin active region disposed above a substrate. A first gate structure is disposed above a top surface of, and along sidewalls of, the first fin active region. The first gate structure includes a first gate dielectric, a first gate electrode, and first spacers. The first gate dielectric is composed of a first dielectric layer disposed on the first fin active region and along sidewalls of the first spacers, and a second, different, dielectric layer disposed on the first dielectric layer and along sidewalls of the first spacers. The semiconductor structure also includes a second gate structure disposed above a top surface of, and along sidewalls of, the second fin active region. The second gate structure includes a second gate dielectric, a second gate electrode, and second spacers. The second gate dielectric is composed of the second dielectric layer disposed on the second fin active region and along sidewalls of the second spacers. |
| US11251198B2 |
Semiconductor device and method of manufacturing the same
There are provided a semiconductor device and a method of manufacturing the same. A semiconductor device includes a memory block having local lines; a peripheral circuit disposed below the memory block; and a plurality of connection lines connecting the peripheral circuit and the local lines to each other, wherein the plurality of connection lines is stacked in a step shape. |
| US11251197B2 |
Semiconductor device
A semiconductor device including a lower structure, an upper pattern, a stacked structure, a separation structure passing through the stacked structure, a vertical structure comprising a channel layer, wherein the stacked structure comprises a plurality of interlayer insulating layers and a plurality of gate layers, the lower structure comprises a first lower pattern and a second lower pattern of a material different from a material of the first lower pattern, the first lower pattern comprises a first portion between the second lower pattern and the channel layer, a second portion extending from the first portion to a region between the second lower pattern and the upper pattern, and a third portion extending from the first portion to a region between the second lower pattern and the substrate structure, and the first lower pattern does not extend toward a side surface of the upper pattern. |
| US11251196B2 |
Integrated circuit device and method of fabricating the same
An integrated circuit device includes: a lower memory stack including a plurality of lower word lines located on a substrate, an upper memory stack located on the lower memory stack and including a plurality of upper word lines, at least one first lower interconnection layer extending in a horizontal direction at a first vertical level between the lower memory stack and the upper memory stack, and configured to be electrically connected to at least one lower word line selected from the plurality of lower word lines, a separate insulating film covering at least one first lower interconnection layer, and at least one first upper interconnection layer extending in the horizontal direction at a second vertical level higher than the upper memory stack, and configured to be electrically connected to at least one upper word line selected from the upper word lines. |
| US11251194B2 |
Method of manufacturing a semiconductor device having a channel layer including a connection part and a pillar part
A semiconductor device and a method of manufacturing a semiconductor device may be provided. The semiconductor device may include a source line formed over a substrate. The semiconductor device may include a channel pattern including a connection part disposed over the source line, and pillar parts protruding from the connection part in a first direction. The semiconductor device may include a well structure protruding from the connection part in the first direction and spaced apart from the source line. The semiconductor device may include a source contact structure protruding from the source line in the first direction and passing through the connection part. The semiconductor device may include a gate stack disposed between the source contact structure and the well structure and enclosing the pillar parts over the connection part. |
| US11251193B2 |
Semiconductor memory device
A semiconductor memory device includes a substrate, gate electrodes arranged in a thickness direction of the substrate, first and second semiconductor layers, a gate insulating film, and a first contact. The first semiconductor layer extends in the thickness direction and faces the gate electrodes. The gate insulating film is between the gate electrodes and the first semiconductor layer. The second semiconductor layer is between the substrate and the gate electrodes and connected to a side surface of the first semiconductor layer in a surface direction. The first contact extends in the thickness direction and electrically connected to the second semiconductor layer. The second semiconductor layer includes a first region in contact with the side surface of the first semiconductor layer and containing P-type impurities, and a first contact region electrically connected to the first contact and having a higher concentration of N-type impurities than the first region. |
| US11251192B2 |
Semiconductor devices and manufacturing methods of the same
A semiconductor device includes a vertical stack of gate electrodes. The gate electrodes extend in different lengths to provide contact regions. The gate electrodes have a conductive region and an insulating region. Contact plugs fills contact holes that pass through the stack of gate electrodes in the contact regions. The contact plugs are connected to the gate electrodes. The contact plugs pass through a conductive region of one gate electrode and are electrically connected to the one gate electrode and pass through the insulating region of other gate electrodes in the contact region. The insulating region is disposed outside of the contact holes in a region in which the gate electrodes intersect the contact plugs. |
| US11251189B2 |
Gate fringing effect based channel formation for semiconductor device
A memory device is described. Generally, the device includes a string of memory transistors, a source select transistor coupled to a first end of the string of memory transistor and a drain select transistor coupled to a second end of the string of memory transistor. Each memory transistor includes a gate electrode formed adjacent to a charge trapping layer and there is neither a source nor a drain junction between adjacent pairs of memory transistors or between the memory transistors and source select transistor or drain select transistor. In one embodiment, the memory transistors are spaced apart from adjacent memory transistors and the source select transistor and drain select transistor, such that channels are formed therebetween based on a gate fringing effect associated with the memory transistors. Other embodiments are also described. |
| US11251188B2 |
Semiconductor memory device and a method of fabricating the same
A semiconductor memory device including: a substrate including a cell array region and a boundary region; a first recess region at an upper portion of the substrate in the cell array region; a first bit line extending onto the boundary region and crossing the first recess region; a bit line contact in the first recess region and contacting the first bit line; a second bit line spaced apart from the first recess region and adjacent to the first bit line, the second bit line crossing the cell array region and the boundary region; a cell buried insulation pattern between a side surface of the first bit line contact and an inner wall of the first recess region; and a boundary buried insulation pattern covering sidewalls of the first bit line and the second bit line in the boundary region and including a same material as the cell buried insulation pattern. |
| US11251185B2 |
Stacked complementary junction FETs for analog electronic circuits
A semiconductor device comprises a substrate, a first source/drain region on the substrate, a first channel region extending vertically with respect to the substrate from the first source/drain region, a second source/drain region on the first channel region, a third source/drain region on the second source/drain region, a second channel region extending vertically with respect to the substrate from the third source/drain region, a fourth source/drain region on the second channel region, a first gate region formed around from the first channel region, and a second gate region formed around the second channel region. |
| US11251172B2 |
Display panel with sensors and manufacturing method thereof, and display device with sensors
The disclosure provides a display panel and a manufacturing method thereof, and a display device. The display panel includes a substrate; an array of pixel units disposed on a first side of the substrate, wherein each of at least some of the pixel units comprises: a light emitting layer, an anode layer and a primary cathode layer which is light transmissive disposed on two sides of the light emitting layer, the anode layer being closer to the substrate than the primary cathode layer; an array of sensors disposed on one side of the array of pixel units, which is far away from the substrate, and each sensor senses the light emitted from a corresponding pixel unit. |
| US11251169B2 |
Method of fabricating semiconductor package and semiconductor package
A method of fabricating a semiconductor package includes preparing a panel package including a redistribution substrate, a connection substrate and a plurality of lower semiconductor chips; sawing the panel package to form a plurality of separated strip packages each of which includes the sawed redistribution substrate, at least two of the lower semiconductor chips, and the sawed connection substrate; and providing a plurality of upper semiconductor chips on one of the strip packages to electrically connect the upper semiconductor chips to the sawed connection substrate. |
| US11251168B2 |
Three-layer color display using stacked LED layers
Over a flexible substrate are deposited stacked pixel layers including a bottom layer of LEDs forming blue pixels, a middle layer of LEDs forming green pixels, and a top layer of LEDs forming red pixels. Each LED die comprises an LED portion and an integrated transistor portion. Applying a voltage to a control terminal of the transistor portion energizes the LED portion. The pixels are substantially transparent, due to the LEDs being microscopic and the pixel areas being much larger, to allow light from the underlying layers to pass through. The three layers of pixels are aligned so that a combination of a single top red pixel, a single underlying green pixel, and a single underlying blue pixel form a single multi-color pixel. The different layers have transparent column and row lines. |
| US11251164B2 |
Multi-layer conversion material for down conversion in solid state lighting
Light emitting diodes are disclosed that utilize multiple conversion materials in the conversion process in order to achieve the desired emission color point. Different embodiments of the present invention can comprise different phosphor types in separate layers on, above or around one or a plurality of LED chips to achieve the desired light conversion. The LEDs can then emit a desired combination of light from the LED chips and conversion material. In some embodiments, conversion materials can be applied as layers of different phosphor types in order of longest emission wavelength phosphor first, followed by shorter emission phosphors in sequence as opposed to applying in a homogeneously mixed phosphor converter. The conversion material layers can be applied as a blanket over the LED chips and the area surrounding the chip, such as the surface of a submount holding the LED chips. |
| US11251163B2 |
Semiconductor device having circuit board interposed between two conductor layers
A semiconductor device having a semiconductor module that includes a first conductor layer and a second conductor layer facing each other, a group of semiconductor elements that are formed between the first and second conductor layers, and are connected to the second conductor layer respectively via a group of conductor blocks, and a circuit board having one end portion thereof located in a space between the semiconductor elements and the second conductor layer. Each semiconductor element includes first and second main electrodes respectively formed on first and second main surfaces thereof, and a control electrode that is formed on the second main surface. The first main electrode is electrically connected to the first conductor layer. The second main electrode is electrically connected to the second conductor layer via the respective conductor block. The circuit board includes a first wiring layer electrically connected to the control electrodes of the semiconductor elements. |
| US11251159B2 |
High performance CMOS using 3D device layout
A semiconductor device includes an NMOS device formed on a first substrate bonded with a second substrate having a PMOS device formed thereon, with the bonding achieved by contacting a first wiring layer formed on the NMOS device with a second wiring layer formed on the PMOS device. |
| US11251156B2 |
Fabrication and use of through silicon vias on double sided interconnect device
An apparatus including a circuit structure including a device stratum; one or more electrically conductive interconnect levels on a first side of the device stratum and coupled to ones of the transistor devices; and a substrate including an electrically conductive through silicon via coupled to the one or more electrically conductive interconnect levels so that the one or more inter connect levels are between the through silicon via and the device stratum. A method including forming a plurality of transistor devices on a substrate, the plurality of transistor devices defining a device stratum; forming one or more interconnect levels on a first side of the device stratum; removing a portion of the substrate; and coupling a through silicon via to the one or more interconnect levels such that the one or more interconnect levels is disposed between the device stratum and the through silicon via. |
| US11251151B2 |
System and method for allowing restoration of interconnection of die of power module
The present invention concerns a system for allowing the restoration of an interconnection of a die of a power module, a first terminal of the interconnection being fixed on the die and a second terminal of the interconnection being connected to an electric circuit. The system comprises:—at least one material located in the vicinity of the first terminal of the interconnection, the material having a predetermined melting temperature,—means for controlling the temperature of the die at the predetermined melting temperature during a predetermined period of time. The present invention concerns also the method. |
| US11251148B2 |
Semiconductor devices including array power pads, and associated semiconductor device packages and systems
Semiconductor devices are disclosed. According to some embodiments, a semiconductor device may include a memory array area and a peripheral area. The memory array area may include a number of memory cells and a number of array pads configured to receive an input voltage. The peripheral area may include a number of peripheral pads for interfacing with the memory array area. In these or other embodiments, the peripheral area may be arranged adjacent to a first edge of the semiconductor device and the number of array pads may be arranged proximate to a second edge of the semiconductor device. The second edge may be perpendicular to the first edge. The memory array area may also include an array distribution conductor configured to variously electrically connect the number of memory cells to the number of array pads. A semiconductor-device package and system are also disclosed. |
| US11251145B2 |
Semiconductor substrate and manufacturing method therefor
A semiconductor substrate has, on an Au electrode pad, an electrolessly-plated Ni film/an electrolessly-plated Pd film/an electrolessly-plated Au film or an electrolessly-plated Ni film/an electrolessly-plated Au film and a method of manufacturing the semiconductor substrate by the steps indicated in (1) to (6) below: (1) a degreasing step; (2) an etching step; (3) a pre-dipping step; (4) a Pd catalyst application step; (5) an electroless Ni plating step; (6) an electroless Pd plating step and electroless Au plating step or an electroless Au plating step. |
| US11251144B2 |
Semiconductor chip
A semiconductor chip includes a semiconductor substrate including a bump region and a non-bump region, a bump on the bump region, and a passivation layer on the bump region and the non-bump region of the semiconductor substrate. No bump is on the non-bump region. A thickness of the passivation layer in the bump region is thicker than a thickness of the passivation layer in the non-bump region. The passivation layer includes a step between the bump region and the non-bump region. |
| US11251142B2 |
Method of fabricating package structure
A package structure including a semiconductor die, a redistribution layer and a plurality of conductive elements is provided. At least one joint of the joints in the redistribution layer or on the semiconductor die is connected with the conductive element for electrically connecting the redistribution layer, the semiconductor die and the conductive elements. The fabrication methods for forming a package structure are provided. |
| US11251141B2 |
Package structure
A package structure includes a semiconductor device, a molding compound, a first dielectric layer, and a through-via. The molding compound is in contact with a sidewall of the semiconductor device. The first dielectric layer is over the molding compound and the semiconductor device. The through-via is in the molding compound and the first dielectric layer. The through-via is a continuous element and in contact with the first dielectric layer. |
| US11251139B2 |
Secure integrated-circuit systems
A method of making a secure integrated-circuit system comprises providing a first integrated circuit in a first die having a first die size and providing a second integrated circuit in a second die. The second die size is smaller than the first die size. The second die is transfer printed onto the first die and connected to the first integrated circuit, forming a compound die. The compound die is packaged. The second integrated circuit is operable to monitor the operation of the first integrated circuit and provides a monitor signal responsive to the operation of the first integrated circuit. The first integrated circuit can be constructed in an insecure facility and the second integrated circuit can be constructed in a secure facility. |
| US11251136B2 |
Flip-chip die package structure and electronic device
A flip-chip die package includes a substrate, a die, a plurality of conductive bumps, and a first metal structure, where an upper surface of the die is electrically coupled, using the conductive bumps, to a surface that is of the substrate and that faces the die, and the first metal structure includes a plurality of first metal rods disposed between the substrate and the die, where each first metal rod is electrically coupled to the substrate and the die, and the first metal rods are arranged around a first active functional circuit, and the first active functional circuit includes an electromagnetic radiation capability or an electromagnetic receiving capability in the die. |
| US11251123B1 |
Static random access memory (SRAM) bit cells employing asymmetric width read and write word lines, and related methods
Static random access memory (SRAM) bit cells employing asymmetric width read and write word lines (WWL) for reduced memory write latency and improved memory write access performance, and related fabrication methods are disclosed. In exemplary aspects, the SRAM bit cell employs an increased width write word line based on a circuit cell layout area savings achieved by employing a reduced width read word line. Increasing the width of the write word line can reduce the resistance of the write word line and decrease memory write latency to the SRAM bit cell as a result. In certain exemplary aspects, the metal line pitch and minimum distance between metal lines of the SRAM bit cell can be maintained for maintaining fabrication compatibility with existing fabrication processes with decreasing the resistance of the write word line of the SRAM bit cell. |
| US11251118B2 |
Self-aligned via structures with barrier layers
Interconnect structures and methods of forming the same are provided. An interconnect structure according to the present disclosure includes a conductive line feature over a substrate, a conductive etch stop layer over the conductive line feature, a contact via over the conductive etch stop layer, and a barrier layer disposed along a sidewall of the conductive line feature, a sidewall of the conductive etch stop layer, and a sidewall of the contact via. |
| US11251112B2 |
Dual side cooling power module and manufacturing method of the same
A dual side cooling power module includes: a lower substrate including a recessed portion on at least one surface thereof, a semiconductor chip formed in the recessed portion, lead frames formed at both ends of the lower substrate, and an upper substrate formed on the semiconductor chip, a portion of the lead frames, and the lower substrate. |
| US11251110B2 |
Semiconductor device and method of manufacturing the semiconductor device
In a semiconductor device (4), a semiconductor chip (10) is mounted on a die pad (6) which has a die pad overhang portion (6a) and leads (9) are arranged around and apart from the die pad (6). The leads (9) and the semiconductor chip (10) are electrically connected and are covered with a sealing resin (8). A concave portion (7e) is formed on the outer side of each lead (9), i.e., the far side from the die pad. A lead concave surface (7d) facing the concave portion (7e) includes a forward-tapered lead slope surface (7h). Side surface of the sealing resin (8) has a step of a staircase shape formed from the first and the second resin side surfaces (8a and 8b). A tip of the lead (9) protrudes past the first resin side surface (8a). |
| US11251100B2 |
Semiconductor structure having an anti-arcing pattern disposed on a passivation layer and method of fabricating the semiconductor structure
A semiconductor structure including a first semiconductor die, a second semiconductor die, a passivation layer, an anti-arcing pattern, and conductive terminals is provided. The second semiconductor die is stacked over the first semiconductor die. The passivation layer covers the second semiconductor die and includes first openings for revealing pads of the second semiconductor die. The anti-arcing pattern is disposed over the passivation layer. The conductive terminals are disposed over and electrically connected to the pads of the second semiconductor die. |
| US11251097B2 |
Method and device for monitoring dicing tape tension
A method of monitoring a dicing tape tension is described. The method includes acquiring tension data indicative of the dicing tape tension by automated optical inspection of a dicing tape. |
| US11251095B2 |
High gain transistor for analog applications
An analog high gain transistor is disclosed. The formation of the analog high gain transistor is highly compatible with existing CMOS processes. The analog high gain transistor includes a double well, which includes the well implants of the low voltage (LV) and intermediate voltage (IV) transistors. In addition, the analog high gain transistor includes light doped extension regions of IV transistor and a thin gate dielectric of the LV transistor. |
| US11251094B2 |
Oxygen vacancy passivation in high-k dielectrics for vertical transport field effect transistor
Embodiments of the present invention are directed to fabrication method and resulting structures for vertical tunneling field effect transistors (VFETs) having an oxygen vacancy passivating bottom spacer. In a non-limiting embodiment of the invention, a first semiconductor fin is formed in a first region of a substrate and a second semiconductor fin is formed in a second region of the substrate. A bilayer bottom spacer is formed in direct contact with sidewalls of the semiconductor fins. The bilayer bottom spacer includes a first layer and an oxygen-donating second layer positioned on the first layer. A first dielectric film is formed on the sidewalls of the first semiconductor fin. The first dielectric film terminates on the first layer. A second dielectric film is formed on the sidewalls of the second semiconductor fin. The second dielectric film extends onto a surface of the oxygen-donating second layer. |
| US11251088B2 |
Semiconductor device
A semiconductor device includes an active area having source and drain regions and a channel region between the source and drain regions, an isolation structure surrounding the active area, and a gate structure over the channel region of the active area and over the isolation structure, wherein the isolation structure has a first portion under the gate structure and a second portion free from coverage by the gate structure, and a top of the first portion of the isolation structure is lower than a top of the second portion of the isolation structure. |
| US11251080B2 |
Method of making 3D circuits with integrated stacked 3D metal lines for high density circuits
Techniques herein include methods for fabricating three-dimensional (3D) logic or memory stack integrated with 3D metal routing. The methods can include stacking metal layers within existing 3D silicon stacks. A first portion can be masked while a second, uncovered portion is etched. Predetermined layers in a bottom portion (disposed closer to the substrate) of the multilayer stack can be replaced with a conductor. The second portion can be masked while the first portion is uncovered and processed. This can enable higher density 3D circuits by having multiple metal lines contained within a multilayer 3D nano-sheet. Advantageously, this facilitates easier connections for 3D logic and memory. Moreover, better speed performance can be achieved by having reduced distance for signals to travel to transistor connections. |
| US11251079B2 |
Method for forming semiconductor device with gate stack
A method for forming semiconductor device structure is provided. The method includes forming a gate stack over a semiconductor substrate and forming a spacer element over a sidewall of the gate stack. The method also includes forming a dielectric layer over the semiconductor substrate to surround the gate stack and the spacer element and replacing the gate stack with a metal gate stack. The method further includes forming a protection element over the metal gate stack and forming a conductive contact partially surrounded by the dielectric layer. A portion of the conductive contact is formed directly above a portion of the protection element. |
| US11251077B2 |
Method of forming a semiconductor device with air gaps for low capacitance interconnects
A method of fabricating air gaps in advanced semiconductor devices for low capacitance interconnects. The method includes exposing a substrate to a gas pulse sequence to deposit a material that forms an air gap between raised features. |
| US11251070B2 |
Semiconductor device including a passivation spacer and method of fabricating the same
A method of fabricating a semiconductor device includes providing a substrate, and forming an interlayered insulating layer on the substrate. The method includes forming a preliminary via hole in the interlayered insulating layer. The method includes forming a passivation spacer on an inner side surface of the preliminary via hole. The method includes forming a via hole using the passivation spacer as an etch mask. The method includes forming a conductive via in the via hole. The passivation spacer includes an insulating material different from an insulating material included in the interlayered insulating layer. |
| US11251064B2 |
Wafer frame sorter and stocker
A wafer sorting and stoking system provides automated storage and retrieval of wafer frames carrying semiconductor wafers. A wafer frame cassette is received at a transfer port from a transfer system. A robot arm retrieves the wafer frames from the cassette and stores each wafer frame in a respective storage slot in one of a plurality of storage towers. The storage location of each wafer frame is recorded. Each wafer frame can be selectively retrieved and loaded into a wafer frame cassette by the robot arm for further processing. |
| US11251058B1 |
Workpiece-separating device and workpiece-separating method
A workpiece-separating device includes a holding member configured to detachably hold one of a workpiece or a supporting body of a laminated body and a light irradiation part configured to perform light irradiation on a separating layer, the holding member including: a stage facing one of the workpiece or the supporting body, a fixed supporting part projecting from the stage toward the laminated body and including a still suction pad immovable in a projection direction, and a movable supporting part projecting from the stage toward the laminated body and including a response suction pad that is movable in a projection direction and elastically deformable, a plurality of the fixed supporting parts and a plurality of the movable supporting parts disposed in a dispersed manner, and the plurality of response suction pads project toward the laminated body further than the plurality of still suction pads. |
| US11251050B2 |
Silicon oxide selective dry etch process
Systems and methods for processing a workpiece are provided. In one example, a method includes exposing the workpiece to a first gas mixture when the workpiece is at a first temperature to conduct a doped silicate glass etch process. The first gas mixture can include hydrofluoric acid (HF) vapor. The doped silicate glass etch process at least partially removes the doped silicate glass layer at a first etch rate that is greater than a second etch rate associated with removal of the at least one second layer. The method can include heating the workpiece to a second temperature. The second temperature is greater than the first temperature. The method can include exposing the workpiece to a second gas mixture when the workpiece is at a second temperature to remove a residue from the workpiece. |
| US11251049B2 |
Etching method and plasma processing apparatus
In an etching method, a target object temperature is maintained within a range from −30° C. to 30° C. When a flow rate of an ith fluorocarbon gas in one or multiple fluorocarbon gases is referred to as J(i); a number of fluorine atoms and a number of carbon atoms in the corresponding gas are referred to as M(i) and N(i), respectively; a value calculated by summing J(i)×N(i)/M(i) of all values that i can be is referred to as Ua; a flow rate of a kth hydrogen-containing gas in one or multiple hydrogen-containing gases is referred to as J(k); a number of hydrogen atoms in the corresponding gas is referred to as H(k); and a value calculated by summing J(k)×H(k) of all values that k can be is referred to as Ub, Ua/Ub satisfies a condition of 0.04 |
| US11251039B2 |
Method of manufacturing semiconductor device, recording medium, and substrate processing method
A film where a first layer and a second layer are laminated is formed on a substrate by performing: forming the first layer by performing a first cycle a predetermined number of times, the first cycle including non-simultaneously performing: supplying a source to the substrate, and supplying a reactant to the substrate, under a first temperature at which neither the source nor the reactant is thermally decomposed when the source and the reactant are present alone, respectively; and forming the second layer by performing a second cycle a predetermined number of times, the second cycle including non-simultaneously performing: supplying the source to the substrate, and supplying the reactant to the substrate, under a second temperature at which neither the source nor the reactant is thermally decomposed when the source and the reactant are present alone, respectively, the second temperature being different from the first temperature. |
| US11251037B2 |
Method of depositing silicon nitride
A method is for depositing silicon nitride by plasma-enhanced chemical vapour deposition (PECVD). The method includes providing a PECVD apparatus including a chamber and a substrate support disposed within the chamber, positioning a substrate on the substrate support, introducing a nitrogen gas (N2) precursor into the chamber, applying a high frequency (HF) RF power and a low frequency (LF) RF power to sustain a plasma in the chamber, introducing a silane precursor into the chamber while the HF and LF RF powers are being applied so that the silane precursor forms part of the plasma being sustained, and subsequently removing the LF RF power or reducing the LF RF power by at least 90% while continuing to sustain the plasma so that silicon nitride is deposited onto the substrate by PECVD. |
| US11251034B2 |
Film forming method and substrate processing apparatus
There is provided a film forming method comprising an organic substance removal step of removing an organic substance adhering to an oxide film generated on a surface of a base by supplying a hydrogen-containing gas and an oxygen-containing gas to the base; an oxide film removal step of removing the oxide film formed on the surface of the base after the organic substance removal step; and a film forming step of forming a predetermined film on the surface of the base after the oxide film removal step. |
| US11251033B2 |
Light irradiation device and flash lamp
To provide a light irradiation device using a plurality of flash lamps in which a structure that can emit high intensity light as a whole and enables a flash lamp to be used for a practical lifetime without increasing an input current to each lamp is adopted. A light emission surface is provided on a distal end on a second electrode introducing part side of a light-emitting tube of a flash lamp including a first electrode introducing part and the second electrode introducing part, and a plurality of flash lamps are arranged in a standing manner on a top plate of a processing chamber so that the light emission surface faces the inside of the processing chamber. |
| US11251030B2 |
Mass spectrometry apparatus and mass spectrometry method
An object of the invention is to provide a mass spectrometry apparatus capable of obtaining a highly accurate quantitative result and being low-cost. A small section measurement instruction unit 101 instructs a detector 9 to perform measurement on a plurality of small sections 5 in a channel 4, the signals detected by the detector 9 are stored in a data storage unit 102, the signals are integrated by a small section signal amount integration unit 103, and variance of the integrated signals is calculated by a signal variance calculation unit 104. A signal variance evaluation unit 105 evaluates the signal variance of signals of each small section 5 in the same channel 4. When the signal variance is evaluated to be stable, an operation control unit 106 controls operations of the ion source 6 to continue measurement without warning. When the signal variance is evaluated to be unstable, the warning is performed during the measurement or after the measurement. |
| US11251028B2 |
Pre-clean chamber with integrated shutter garage
Substrate processing chambers with integrated shutter garage are provided herein. In some embodiments, a pre-clean substrate processing chamber may include a chamber body, wherein the chamber body includes a first side configured to be attached to mainframe substrate processing tool, and a second side disposed opposite the first side, a substrate support configured to support a substrate when disposed thereon, a shutter disk garage disposed on the second side of the process chamber, and a shutter disk assembly mechanism comprising a rotatable shaft, and a robot shutter arm coupled to the shaft, wherein the robot shutter arm includes a shutter disk assembly support section configured to support a shutter disk assembly, and wherein the shutter disk assembly mechanism is configured to move the robot shutter arm between a storage position within the shutter garage and a processing position within the process chamber over the substrate support. |
| US11251025B2 |
Processing device having opening enabling gas to communicate between diffusion path and treatment chamber and member having diffusion path
In a processing device including a reaction container that receives a gas flowing into the reaction container and performs a predetermined process in a treatment chamber, a member that communicates with an exhaust port at a portion in which a diffusion path of a sidewall or a bottom wall of the reaction container is formed, and an opening that is present between the member having the diffusion path and the reaction container to cause the diffusion path and a space of the treatment chamber to communicate, in order to avoid a shift of the gas in the treatment chamber, an opening area of the opening is made narrower as a position of the opening area is closer to the exhaust port. |
| US11251019B2 |
Plasma device
The plasma device includes a vessel with the first and second molds facing to each other. A work is sealed in the closed first and second molds. The work includes an object to be processed with a part to be processed and a part not to be processed on an outer periphery of the part to be processed, and a masking member covering the part not to be processed. The first mold includes a facing plane portion disposed facing an outer periphery surface of the work, a first recessed portion disposed facing the part to be processed and generating plasma, and a second recessed portion disposed facing the part not to be processed between the facing plane portion and the first recessed portion and generating plasma. A depth of the second recessed portion is different from a depth of the first recessed portion. |
| US11251018B2 |
Scanning electron microscope
Provided is a scanning electron microscope which can perform high-speed focus correction even when an electron beam having high energy is used. The scanning electron microscope includes an electron optical system including an electron source 100 that emits an electron beam and an objective lens 113, a sample stage 1025 which is disposed on a stage 115 and on which a sample 114 is placed, a backscattered electron detector 1023 which is disposed between the objective lens and the sample stage and is configured to detect backscattered electrons 1017 emitted due to interaction between the electron beam and the sample, a backscattered electron detection system control unit 138 which is provided corresponding to the backscattered electron detector and is configured to apply a voltage to the backscattered electron detector, and a device control calculation device 146. The objective lens has an opening in a stage direction, and the device control calculation device performs focus correction of the electron beam by controlling the voltage applied to the backscattered electron detector from the backscattered electron detection system control unit. |
| US11251017B2 |
Method for evaluating secondary optical system of electron beam inspection device
A method for evaluating a secondary optical system of an electron beam inspection device provided with a primary optical system that irradiates a sample placed at an observation target position with an electron beam emitted from an electron source, and the secondary optical system that forms, on a detector, an enlarged image of an electron beam generated from the sample or an electron beam transmitted through the sample. The method includes: placing a photoelectric surface at the observation target position; irradiating the photoelectric surface with laser; forming an enlarged image of an electron beam generated from the photoelectric surface on the detector by the secondary optical system; and evaluating the secondary optical system based on an electron beam image obtained by the detector. |
| US11251011B2 |
Electron microscope
To provide an electron microscope capable of performing the switching-over between normal illumination and annular illumination, wide-area irradiation, an interference pattern as desired or normal illumination in an expeditious and readily manner or achieving a better S/N ratio, the electron microscope comprises a photocathode 101 with negative electron affinity in use; an excitation optical system to excite the photocathode; and an electron optics system to irradiate an electron beam 13 generated from the photocathode by excitation light 12 irradiated through the excitation optical system onto a sample, the excitation optical system including a light source device 107 for the excitation light; and an optical modulation means 108 which is disposed in an optical path of the excitation light to perform spatial phase modulation to the excitation light. |
| US11251008B2 |
High voltage cartridge fuse assembly
An electrical cartridge fuse including a cylindrical housing, first and second terminals coupled to the cylindrical housing, and a fuse element inside the housing and interconnected between the first and second terminals. The fuse element has a main body having at least five openings formed therein in a single line along a longitudinal axis of the fuse element, a guide element formed on a first end of the main body, and a hanger element formed on the second end of the main body. The cartridge fuse has a package size of about 6×32 mm and a voltage rating of at least 500 VADC, a 20 kA IR Rating, a current rating of 12 A to 30 A and a defined opening time at 100% rated current. |
| US11251005B2 |
Methods and systems for using a light emitting diode to switch a device on and off
An on/off switching circuit includes an on/off switch switchable between an on state and an off state, an light emitting diode (LED) driver to power one or more LEDs to illuminate an area of interest, a switch control unit to transition the on/off switch between the on and off states, the switch control unit including a light sensing circuit comprising at least one LED of the LEDs as a light sensor, and a bi-directional gate circuit. When the on/off switch is in the off state the bi-directional gate is in a first conducting state in which the bi-directional gate circuit connects the light sensor to the light sensing circuit, and when the on/off switch is in the on state the bi-directional gate is in a second conducting state in which the bi-directional gate connects the LED driver to the one or more LEDs including the light sensor. |
| US11251004B2 |
Vacuum circuit interrupter with piezoelectric actuator and vacuum circuit breaker incorporating same
A vacuum circuit breaker comprises a vacuum interrupter operable between a closed state and an open state, and an actuator. The actuator comprises a piezoelectric driving element that is expandable and contractable along an expansion axis in response to an electrical input signal. The actuator further comprises a mechanical amplifying structure extendable along an actuation axis and being mechanically coupled to the piezoelectric driver such that expansion or contraction of said piezoelectric driving element causes the amplifying structure to extend or retract along the actuation axis. The mechanical amplifying structure is coupled to the vacuum interrupter for operating the vacuum interrupter between said closed and open states. |
| US11251003B2 |
Insulating support assembly for a circuit breaker
The application relates to certain embodiments of an improved insulating support assembly for a circuit breaker. One embodiment comprises a strut and two metallic shields. The strut comprises an elongated main body and two metallic inserts. The main body is continuously curved from one end to the other end of the main body, each end of the main body being configured to face a radial direction of its component, the main body being configured to be in a same plane as a plane containing both radial directions of the components; each metallic shield is configured to be assembled to its respective end of the main body through its respective metallic insert and affixed to an outer surface of its respective component with fixing elements, each metallic shield having a C-shaped profile shaped to accommodate the outer surface of its respective component. |
| US11251002B2 |
Retrofit remote control device
A control device may be configured to be mounted over a bezel portion of an electrical device and to control a lighting load. The control device may comprise a base portion having planar extensions removably attached or affixed thereto. The planar extensions may be adapted to be received in a gap between a faceplate of the electrical device and the bezel portion for holding the control device against the faceplate. The planar extensions may comprise barbs that allow for insertion of the extensions in the gap, and may bite into the faceplate to hinder removal of the control device. The planar extensions may be defined by a mounting structure that is configured to be received in the gap between the bezel portion and the faceplate. The mounting structure may protrude beyond a front surface of the faceplate. |
| US11251001B2 |
Keycap, illuminating keyswitch having the same and method for manufacturing the same
A keycap, an illuminating keyswitch and a method for manufacturing the same are provided. The illuminating keyswitch comprises a base plate, a printed circuit board, a light emitting element, a keycap and a lifting support structure. The printed circuit board is disposed on the base plate. The light emitting element electrically is connected to the printed circuit board. The keycap is disposed on the light emitting element. The lifting support structure is disposed between the base plate and the keycap. The keycap comprises a first injection layer and a second injection layer. The second injection layer covers the first injection layer. The light emitting element is configured to correspond to the first injection layer or the second injection layer. The keyswitch of the present invention covers the first injection layer through the second injection layer, so that the surface of the key cap is flat, thereby facilitating subsequent processing. |
| US11251000B1 |
Keyboard
A keyboard includes a base plate, a keycap, and a link bar. The base plate includes a plate body and a linkage structure. The linkage structure is connected to and bended relative to the plate body. A through hole is formed at a connecting edge between the plate body and the linkage structure. The keycap is located over the base plate. The link bar includes a first rod body, a second rod body, and an engaging block. The first rod body is engaged with the keycap. The second rod body is connected to the first rod body and passes through the through hole. The engaging block is connected to an end of the second rod body and blocked by the linkage structure. |
| US11250998B2 |
Hair straightener and integrated switch for control and display
A hair straightener and its integrated switch for control and display are disclosed. The hair straightener comprises first and second clamping plate parts and the integrated switch for control and display arranged on an inner side of the second clamping plate part. The integrated switch for control and display comprises a temperature control knob assembly for regulating and controlling temperature, a display button assembly for displaying the temperature and turning on or off a power supply, and a control motherboard for digital display and electrical control. The temperature control knob assembly and the display button assembly are installed on the control motherboard. The temperature display, control and regulation functions, and the power supply switching on and off functions are centralized on the same switch key, such that the temperature can be controlled and regulated conveniently when operated by one hand and the visual information can be obtained without obstacles. |
| US11250994B2 |
Electrodes for electrochemical cells
The electrode (10) includes an electrically conductive surface (14) with a galvanic pellicle, or carbon nanotube mat (18), secured to the conductive surface (14). The pellicle (18) has a first surface (20) and an opposed outer surface (22) and defines an uncompressed thickness dimension (24) as a longest length of a straight axis (26) extending from the first surface (20) to the outer surface (22) of an uncompressed section (28) of the galvanic pellicle (18). Uncompressed sections (28) of the pellicle are defined between connected areas (30) and continuous connected areas (32) of the pellicle (18). Any point (35) within any uncompressed section (28) is no more distant from one of a nearest connected area (30) and/or a nearest segment (34) of a continuous connected area (32) than about ten times the uncompressed thickness dimension (24) of the pellicle (18), thereby achieving significantly reduced contact resistance. |
| US11250991B2 |
Multilayer ceramic capacitor
A multilayer ceramic capacitor includes a stacked body and external electrodes. The stacked body includes stacked dielectric layers and internal electrodes. The external electrodes are disposed on lateral surfaces of the stacked body and are connected to the internal electrodes. A ratio of min to max is not less than about 36% and not more than about 90%, where A1, A2, A3, and A4 respectively denote the surface areas of first, second, third, and fourth external electrodes that are located on the first or second main surface of the stacked body. |
| US11250990B2 |
High-voltage transformer and electronic power apparatus
A high-voltage transformer includes a magnetic core; at least a secondary coil unit including at least one secondary winding; at least a primary coil unit, comprising at least one primary winding and a first insulating portion, the first insulating portion forming at least one through hole, the primary winding encircling the through hole and being wrapped by the first insulating portion and fixed in the first insulating portion, the magnetic core passing through the through hole, a shielding layer being formed on a surface of the first insulating portion, and the shielding layer being used for connecting a safety ground; a second insulating portion formed by extending the first insulating portion; a first retaining wall presented in a closed ring shape, arranged on an end periphery of the second insulating portion; and a second retaining wall arranged in the first retaining wall. |
| US11250988B2 |
High voltage transformer
A high-voltage transformer is disclosed. The high-voltage transformer includes a transformer core; at least one primary winding wound once or less than once around the transformer core; a secondary winding wound around the transformer core a plurality of times; an input electrically coupled with the primary windings; and an output electrically coupled with the secondary windings that provides a voltage greater than 1,1200 volts. In some embodiments, the high-voltage transformer has a stray inductance of less than 30 nH as measured on the primary side and the transformer has a stray capacitance of less than 100 pF as measured on the secondary side. |
| US11250985B2 |
Semiconductor element
A semiconductor element includes a first spiral coil, a second spiral coil, a connecting section, a first guide segment, and a second guide segment. The first spiral coil is formed with a first end and a second end, and includes a first inner turn and a first outer turn. The first inner turn is located in a range surrounded by the outer turn, and the first end and the second end are located at the first inner turn. The second spiral coil and the first spiral coil are located in substantially a same metal layer. The connecting section connects the first spiral coil and the second spiral coil. The first guide segment is connected to the first end. The second guide segment is connected to the second end. The first guide segment and the second guide segment are fabricated in a metal layer different from a metal layer of the first spiral coil. |
| US11250984B2 |
Methods and apparatus for biasing a magnetic circuit to reduce audible noise from a switching power supply
Presented herein are methods and apparatus for biasing magnetic circuits to reduce audible noise from a switching power supply. A magnetic component (e.g., a magnet) is constructed and provided to a core (e.g., a ferromagnetic core) to offset (i.e., bias) an applied magnetomotive force. By selecting and/or manufacturing the magnetic component based on a circuit operating condition, the offset may be tailored to advantageously shift a frequency of mechanical deformation outside the audible noise range. In a switching power supply with fixed peak current, the offset to the applied magnetomotive force may be determined, at least in part, by the fixed peak. |
| US11250981B2 |
Vertical inductor for WLCSP
Embodiments of the invention include a microelectronic device and methods of forming a microelectronic device. In an embodiment the microelectronic device includes a semiconductor die and an inductor that is electrically coupled to the semiconductor die. The inductor may include one or more conductive coils that extend away from a surface of the semiconductor die. In an embodiment each conductive coils may include a plurality of traces. For example, a first trace and a third trace may be formed over a first dielectric layer and a second trace may be formed over a second dielectric layer and over a core. A first via through the second dielectric layer may couple the first trace to the second trace, and a second via through the second dielectric layer may couple the second trace to the third trace. |
| US11250974B2 |
Cable with aerogel dielectric
The present invention is a cable made from a braided polyethylene terephthalate cable sleeve. Inside the cable sleeve is a sequence of four shielding layers; a braided copper wire layer, a braided silver-plated copper wire layer, and two braided carbon fiber layers. Within the fourth shielding layer is a polytetrafluoroethylene inner sleeve containing a particulate aerogel dielectric, with an approximate particle diameter from 2 micrometers to 1.2 millimeters, and a conductive metal core with a mirror polish. |
| US11250972B1 |
Hybrid cables comprising carbon nanotubes utilized to transmit power
A hybrid cable may include a central strength member and a plurality of buffer tubes helically wrapped around the central member. Each of the plurality of buffer tubes may house at least one optical fiber, and an outer jacket may surround the plurality of buffer tubes and the central strength member. Additionally, the central strength member may include one or more carbon nanotubes capable of transmitting a power signal. |
| US11250965B1 |
Systems and methods for preparing tailored radioactive isotope solutions
The present disclosure relates to systems and methods for producing tailored solutions or medicaments containing radioactive isotopes (e.g., alpha particle emitting radioactive isotopes). The solutions may be produced by appropriate aging and separation steps. Therapeutically effective amounts of Ac-225 and/or Bi-213 may thus be obtained. |
| US11250964B2 |
System for the irradiation of a target material
A capsule for the transfer of a target material in a conveying system between a target irradiation station and a collecting station comprising: a beamline channel for the passage of an energetic beam irradiating the target material, a target holder holding the target material or a substrate backing the target material at a glancing angle with respect to the beamline channel axis, a degrader foil positioned across the beamline channel for degrading an energy of the energetic beam upstream of the target material, a target cooling inlet and a target cooling outlet for passage of a cooling fluid in a target cooling duct in a vicinity of the target holder such that the target material can be cooled during an irradiation, and a degrader foil cooling inlet and a degrader foil cooling outlet for passage of a cooling gas in a vicinity of the degrader foil. |
| US11250963B2 |
Nuclear fuel storage facility
A spent nuclear fuel storage facility. In one embodiment, the invention is directed to a storage facility including an array of storage containers. Each of the storage containers includes a body portion and a lid. The body portion has a storage cavity configured to hold a canister containing spent nuclear fuel. The lid, which may rest atop the body portion in a detachable manner, includes an inlet vent and an outlet vent. Each of the storage containers may be configured to draw air through the inlet vent and into the storage cavity where the air is warmed and passed through the outlet vent as heated air. The body portion of the storage containers may be positioned below grade and the lid of the storage containers may be positioned above grade. |
| US11250962B1 |
Manufacturing methods to fortify nuclear waste canisters from stress corrosion cracking
Manufacturing methods for fabricating nuclear waste canisters used to store spent nuclear fuel assemblies are disclosed to mitigate stress corrosion cracking. The method may generally comprise providing one or more stainless steel sheets used to form a shell of the canister. The shell comprises open butt joints which are welded closed via full shell thickness type welds of preferably narrow profile. The welds and adjoining heat affect zone may then be subjected to mechanical through-thickness compaction, which converts a residual tensile stress field in the shell base material adjoining the weld to a compressive stress field for a full thickness of the shell. The crown of the external exposed portion of the weld is flattened by the compaction and may be coplanar with the exterior surface of the shell. Surface peening may optionally be performed on the welded zone after compaction. |
| US11250961B2 |
Packaging for the transport and/or storage of radioactive materials, permitting easier production and improved heat conductivity
Packaging for the transport and/or storage of radioactive materials includes a lateral packaging body around which an outer radiation protection envelope is disposed, which is made from a plurality of individual annular structures stacked on top of each other. Every structure includes an outer annular wall and a radial heat conductive wall, an outer end of which is secured to the wall, and an inner end of which is in contact with the lateral body. Furthermore, two directly consecutive structures delimit an annular cavity housing at least one radiation protection element, the cavity being closed radially towards the outside by the wall of one or both directly consecutive structures, and axially closed by the radial heat-conducting structure of one and the other of the two structures. |
| US11250960B2 |
Sensor device, method of processing sensor device, and sensor network system
A plurality of sensor devices that senses environmental data at installation positions is appropriately arranged. Each sensor device includes a device detection unit, a position fixing unit, a sensor unit, and a transmission unit. The device detection unit performs operation of detecting another sensor device in the surrounding area and generates a detection result thereof. The position fixing unit fixes a position of the own sensor device on the basis of the detection result obtained by the device detection unit. The sensor unit senses environmental data at a position fixed by the position fixing unit. The transmission unit transmits the data sensed by the sensor unit. |
| US11250959B2 |
Dynamically updating a community early warning score
Embodiments of the present disclosure relate to systems, methods, and user interfaces for providing intelligent touch care. More particularly, embodiments of the present disclosure utilizes contributing data elements in a community early warning score (CEWS) to predict touchpoint discipline and to recommend frequency, modality, and upstream transitions of care and outside service referrals for a patient in a community care setting. In response to a touch point (e.g., a change in condition or medication, a scheduled or unscheduled appointment, or a patient question), the CEWS can be utilized along with data in an EHR of a patient, data from a patient device, or data from a patient portal to initiate a follow-up (e.g., personal health question or encounter). Notification tools and scheduling functionality are provided via a user interface of the patient device to improve clinical workforce capacity, increase the number of patient touches, and encourage heightened patient engagement. |
| US11250947B2 |
Providing auxiliary information regarding healthcare procedure and system performance using augmented reality
Techniques for providing information regarding healthcare performance in real-time using augmented reality are provided. In one example, a computer-implemented method comprises receiving input data generated in real-time during performance of a healthcare procedure by a user, including video captured of the user during the performance of the healthcare related procedure. The method further includes determining descriptive information characterizing the performance based on the input data, wherein the descriptive information characterizes at least actions performed by the user during the procedure, and determining whether an aspect of one of the actions currently being performed by the user deviates from a defined protocol for the healthcare related procedure based on comparison of the descriptive information with reference descriptive parameters for the healthcare related procedure. The method further includes determining feedback information regarding correction of the aspect in response to a determination that the aspect deviates from the defined protocol. |
| US11250934B2 |
Test server, test method, and test system
A test server includes a communication unit and a control unit. The communication unit communicates with a plurality of communication terminals via a network. Each communication terminal is connectable to a test device capable of executing a test on presence or absence of a disease and is capable of inputting a diagnosis on the presence or absence of the disease. The diagnosis is related to the test and made by a doctor. The control unit acquires at least one of a result of the test and the diagnosis as a test information item from each communication terminal via the communication unit, causes a storage unit to store the plurality of acquired test information items, performs statistical processing on the plurality of stored test information items, and causes the communication unit to return a result of the statistical processing according to a demand given from each communication terminal. |
| US11250933B2 |
Adaptive weighting of similarity metrics for predictive analytics of a cognitive system
According to embodiments of the present invention, similarity metrics or measures of similarity may be combined using an adaptive weighting scheme. A subset of entities from a first set of entities that have a known relationship is randomly selected. The subset is combined with a second set of entities that have an unknown relationship to each other and/or to the first set of entities. At least two different measures of similarity (similarity metrics) between the first set and the combined second set (including the subset) is determined for each entity in the second set. For each entity in the second set, the at least two different measures of similarity are compared, and a weight is assigned adaptively to each measure of similarity based on the magnitude of the measure of similarity. The weighted measures of similarity are combined to determine an aggregate adaptively weighted similarity score for each entity. |
| US11250931B2 |
Systems and methods for detecting recombination
A method for screening for disease in a genomic sample is includes receiving a representation of a reference genome comprising a sequence of symbols. The presence of a predicted mutational event is identified in a location of the reference genome. An alternate path is created in the reference genome representing the predicted mutational event. A plurality of sequence reads are obtained from a genomic sample, wherein at least one sequence read comprises at least a portion of the predicted mutational event. The at least one sequence read is then mapped to the reference genome and a location is determined corresponding to the predicted mutational event. The predicted mutational event is then identified as present in the genomic sample. The method may be used to detect evidence of non-allelic homologous recombination (NAHR) occurring in genomic samples. |
| US11250930B2 |
Electronic chip memory
A device includes a first switch, a first irreversibly programmable memory point, and a second irreversibly programmable memory point coupled in parallel with the first irreversibly programmable memory point. The first switch and the parallel combination of the first and second irreversibly programmable memory points are coupled in series between a first node and a second node. |