| Document | Document Title |
|---|---|
| US11402999B2 |
Adaptive wear leveling using multiple partitions
A storage device for adaptive wear leveling within a data storage system is provided. The storage device includes a host interface configured to receive storage operations for storage and retrieval of data on storage media, a media interface configured to read and write data to the storage media, and a storage controller configured to provide wear leveling for the storage media using a plurality of partitions within the storage media. |
| US11402995B2 |
Data storage system in a key-value storage architecture with data compression, and non-volatile memory control method
A key-value storage architecture with data compression is shown. A computing unit is configured to estimate the average compression rate factor of a non-volatile memory. The computing unit is further configured to estimate storage space consumption of the non-volatile memory based on the average compression rate factor, and programming of the non-volatile memory is prohibited if to the storage space consumption exceeds a predefined threshold. The average compression rate factor is dynamically updated, and is a weighted result of compression rate factors of several storage units of the non-volatile memory. |
| US11402990B2 |
User-interactive steering wheel
A touch sensor system includes touch sensors, drive-sense circuits (DSCs), memory, and a processing module. A DSC drives a first signal via a single line coupling to a touch sensor and simultaneously senses, when present, a second signal that is uniquely associated with a user. The DSC processes the first signal and/or the second signal to generate a digital signal that is representative of an electrical characteristic of the touch sensor. The processing module executes operational instructions (stored in the memory) to process the digital signal to detect interaction of the user with the touch sensor and to determine whether the interaction of the user with the touch sensor compares favorably with authorization. When not authorized, the processing module aborts execution of operation(s) associated with the interaction of the user with the touch sensor. Alternatively, when authorized, the processing module facilitates execution of the operation(s). |
| US11402987B2 |
Circular video player controls
The ability to control media content play is provided. A media content user interface component that controls playback of the media content in a media player is activated. The component includes a circular progress bar and a progress marker that coincides with the circular progress bar. As the media content plays in the media player, the progress marker moves around the circular progress bar. User input moves the progress marker along the circular progress bar to rewind or fast forward the media content. |
| US11402986B2 |
Systems and visualization interfaces for orbital paths and path parameters of space objects
A display system can be configured to receive, via a user interface, a first identifier associated with a first space object and determine a first maneuver of the first space object. The first maneuver can include a perturbation of the path of the first space object. Based on the first identifier and the first maneuver, the display system can identify one or more path parameters associated with a path of the first space object and generate a display interface. The display interface can include a longitude-time graph having a longitude axis spanning from a lower-longitude limit to an upper-longitude limit and a time axis spanning from the lower-time limit to the upper-time limit and an indication of the one or more path parameters. |
| US11402985B2 |
Systems and user interfaces for dynamic and interactive access of, investigation of, and analysis of data objects stored in one or more databases
Embodiments of the present disclosure relate to user interfaces and systems that may enable dynamic and interactive access of, investigation of, and analysis of data objects stored in one or more databases. The data objects may be accessed from the one or more databases, and presented in multiple related portions of a display. In particular, the system provides a time-based visualization of data objects (and/or properties associated with the data objects) to a user such that the user may, for example, determine connections between various data objects, observe flows of information among data objects, and/or investigate related data objects. |
| US11402983B2 |
Display for an electronic measurement device and method to change a numerical value of an electronic measurement device
The invention relates to a display for an electronic measurement device, wherein the display is configured to display a graphical user interface, wherein the display is configured to detect a first and a second user input on the graphical user interface, wherein the display is configured to determine a change of a numeric value of the electronic measurement device based on the first user input, and wherein the display is configured to determine a resolution and/or a value range for the change of the numerical value based on the second user input. |
| US11402982B2 |
Graphical interface for injection molding systems
System and method for monitoring system parameters from multiple independent controllers that monitor and control an injection process is a plurality of IMSs, including:establishing a common graphical user interface (common GUI) for viewing system parameters of a tool based injection molding system (IMS), the IMS including a plurality of different local controllers that control different tool based system functions of the IMS and one common graphical user interface (local GUI) with GUI routines specific to the local controllers for set up and monitoring of the respective tool based system function of the respective local controllers. |
| US11402981B2 |
Display device for visualizing contents as the display is rotated and control method thereof
A display device and a controlling method thereof are provided. The display device includes: displaying a plurality of objects on a rotatable display of the display device; based on an event occurring, rotating the rotatable display in a first direction; and based on the rotatable display being rotated in the first direction, rotating and displaying constituent elements included in the plurality of objects in a second direction, which is opposite to the first direction, while maintaining an arrangement of the plurality of objects. |
| US11402978B2 |
Devices, methods, and systems for manipulating user interfaces
A method includes, while displaying a file browsing user interface that includes a plurality of representations of files, detecting a first input directed to a representation of a first file of the plurality of representations of the files. The method includes in response to determining that the first input is of a first input type corresponding to a request to display a preview of the first file, concurrently displaying a preview of the first file and one or more selectable affordances for performing actions associated with the first file. The one or more selectable affordances include: in accordance with a determination that the first file includes content of a first type, a first set of one or more selectable affordances; and in accordance with a determination that the first file includes content of a second type, a second set of one or more selectable affordances. |
| US11402976B1 |
System and method for an adaptable, smart virtual assistant that supports long term care
Aspects of the subject disclosure may include, for example, a virtual assistant that includes a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations of creating a normalized profile for a user of the virtual assistant device; identifying an anomaly deviating from the normalized profile over a threshold time period during use of the virtual assistant device; and changing an interface of the virtual assistant device to accommodate the identified anomaly. Other embodiments are disclosed. |
| US11402975B2 |
Apparatus and method for providing interactive content
An apparatus providing interactive content includes an input interface configured to sense an input of a user, a display configured to output a video, at least one memory configured to store instructions for performing a certain operation, and at least one processor operably connected to the at least one memory and configured to execute the instructions. The processor provides, when a plurality of animation units including object information for specifying an object to be output in the video and driving information for defining motion of the object are played, interactive content played by the object moving according to the driving information to a user, receives information of the user to be reflected in the interactive content, inserts the information of the user to a part of the object information, and plays at least one of the plurality of animation units to play the interactive content. |
| US11402970B2 |
Systems, methods, and user interfaces for interacting with multiple application windows
While displaying the dock overlaid on a first user interface of a first application, an electronic device detects a first input selecting a respective application icon in the dock. If the respective application icon corresponds to the first application and the first application is associated with multiple windows, the electronic device displays respective representations of the multiple windows of the first application. If the respective application icon corresponds to the first application and the first application currently is only associated with a single window, the electronic device maintains display of the first user interface of the first application. If the respective application icon corresponds to a second application, the electronic device replaces display of the first user interface of the first application with display of a second user interface of the second application, irrespective of how many windows were associated with the second application at the time. |
| US11402965B2 |
Object display method and apparatus for simulating feeling of blind person and storage medium
This application discloses a method for simulating a feeling of a blind person touching an object on a touch screen of a terminal, and belongs to the field of human-machine interaction. The method includes: displaying a user interface of an application on the touchscreen, the user interface being an interface configured to display a three-dimensional virtual environment including multiple objects, and a mask layer being overlaid on the user interface and exposing a limited region of the three-dimensional virtual environment; receiving an interactive operation triggered by a user on a target area of the user interface on the touchscreen; displaying, in the target area according to the interactive operation, an outline of an object located in the three-dimensional virtual environment. This application can truly simulate an effect of touching an object in the dark by a blind person and presenting a three-dimensional outline of the object in the blind person's mind. |
| US11402964B1 |
Integrating artificial reality and other computing devices
Methods and systems for integrating functionality of XR devices and non-XR devices are disclosed herein. An XR device can identify and obtain one or more content items being displayed on non-XR devices and create virtual objects associated with the content item in an artificial reality environment of the XR device. A user of the XR device can interact with the virtual objects, such as by moving the virtual objects to new locations within the artificial reality environment or interact with the virtual objects to view the content items. The user of the XR device can also provide one or more gestures or commands to send content items or identifiers of content items associated with the virtual objects to non-XR devices for display at the non-XR devices. |
| US11402963B2 |
Neighboring panel view
A neighboring panel view is leveraged in a digital medium environment. Initially, a view generation system receives a selection of panels of a three-dimensional (3D) assembled representation of an object, such as to apply digital graphics to the 3D assembled representation. The view generation system also receives a selection of an option to display a neighboring panel view, which is a two-dimensional (2D) flattened view local to the selection. In particular, the neighboring panel view displays an arrangement of the selected panels of the object and their neighboring panels. The view generation system arranges the selected panels in this arrangement as those panels are arranged in the 3D assembled representation. The view generation system also arranges the neighboring panels in the neighboring panel view adjacent to the selected panels with which they are adjacent on the object. |
| US11402961B2 |
Conductive member, conductive film, display device having the same, touch panel, method of producing wiring pattern of conductive member, and method of producing wiring pattern of conductive film
A conductive member has a wiring portion, and the wiring portion has a wiring pattern in which straight line wirings each being composed of a plurality of thin metal wires arranged in parallel in one direction are overlapped in two or more directions. The wiring pattern is a separate-direction non-equal pitch wiring pattern in which the average pitch of the straight line wiring in at least one direction is different from the average pitch of the straight line wiring in at least one different direction. The conductive member has a wiring pattern having less moiré than an equal pitch wiring pattern, particularly a wiring pattern capable of reducing both regular moiré and irregular moiré (noise). A conductive film, a display device, and a touch panel each include the conductive member. |
| US11402960B2 |
Touch panel and display device
The present application provides a touch panel and a display device. The touch panel includes: a substrate, a touch electrode, and a light-shielding layer provided corresponding to the touch electrode. The light-shielding layer is used to shield light reflected by the touch electrode. The display device using the touch panel can reduce ambient light reflected by the touch electrode. While ensuring that the display device realizes a touch control function, contrast and color saturation of the display device are not affected, and confidentiality of private information under wide viewing angles is ensured. |
| US11402959B2 |
Touch structure, touch panel and display device
A touch structure, a touch panel and a display device are provided. The touch structure includes a plurality of repeating units. Each of the repeating units includes: a first touch electrode extending in a first direction, the first touch electrode including two parts connected with each other, each part of the first touch electrode including a first section having a first width, a second section having a second width, and a first tip section; a second touch electrode extending in a second direction, the second touch electrode including two parts, each part of the second touch electrode including a third section having a third width and a second tip section; and dummy electrodes provided in regions of each of the repeating units not provided with the first touch electrode and the second touch electrode. |
| US11402958B2 |
Electronic device
An electronic device includes a base layer, a first sensing pattern disposed on the base layer and including a plurality of first mesh lines, a second sensing pattern disposed on the base layer and spaced apart from the first sensing pattern, a first sensing line electrically connected to the first sensing pattern, and a second sensing line electrically connected to the second sensing pattern. Each of the first mesh lines includes at least one of a first end and a second end having a shape different from a shape of the first end, the first end faces the second sensing pattern, and the second end is spaced apart from the second sensing pattern. |
| US11402951B2 |
Input device and vehicle
An input device includes: an inputter to which an operation is input by a user; a frame that holds the inputter and moves in a first direction in response to the operation input by the user; a substrate disposed on a side to which the frame moves in the first direction; a first elastic body disposed between the frame and the substrate; a load sensor that detects a load applied to the inputter, based on the movement of the frame in the first direction; a restrictor that restricts the movement of the frame in a second direction that is opposite to the first direction; and a second elastic body disposed between the restrictor and the movable portion. The second elastic body has a repulsion elasticity lower than a repulsion elasticity of the first elastic body. |
| US11402949B2 |
Detection panel, display apparatus, driving method and manufacturing method for the detection panel
A detection panel, a display apparatus, a method for driving the detection panel, and a method for manufacturing the detection panel are provided. The detection panel includes an upper electrode layer, a piezoelectric material layer and a conductive backing layer which are sequentially stacked. The piezoelectric material layer is configured to change an electric field between the upper electrode layer and the conductive backing layer under an ultrasonic wave, and generate an ultrasonic wave under an electric field. The conductive backing layer includes a plurality of noise elimination members, and each of the noise elimination members has a dimension in a direction parallel to the detection panel that gradually decreases in a direction distal to the piezoelectric material layer. |
| US11402946B2 |
Multi-chip synchronization in sensor applications
A system may include a plurality of actively-driven inductive sensors and a plurality of control circuits, each control circuit of the plurality of control circuits configured to control operation of a respective set of the actively-driven inductive sensors, each control circuit of the plurality of control circuits communicatively coupled to the other control circuits via a connection configured to distribute synchronization information among the plurality of control circuits. Each of the plurality of control circuits may further be configured to configure a schedule for controlling time-division multiplexed operation of its respective set of actively-driven inductive sensors and control time-division multiplexed operation of its respective set of actively-driven inductive sensors based on the schedule and the synchronization information in order to minimize interference among the plurality of actively-driven inductive sensors. |
| US11402945B2 |
Touch sensing method and touch sensing device based on driving and sensing signals
A touch sensing device includes a touch panel and a touch sensing controller. The touch panel includes driving electrodes and sensing electrodes. The touch sensing controller provides driving electrodes with driving signals having different frequencies from each other, respectively, and performs a fast Fourier transform (FFT) processing on the sensing signals sensed at each of the sensing electrodes to determine whether or not a touch is generated based on a variation amount between frequency magnitude of the sensing signal and frequency magnitude of the driving signal. The touch sensing controller performs a convolution operation of mixing the driving signal or the sensing signal and a mixing signal having a predetermined frequency, and separates the mixing signal from the sensing signal on which the convolution operation is performed to determine whether or not a touch is generated by reconstructing an original driving signal. |
| US11402944B2 |
Electronic apparatus and controlling method
An electronic apparatus includes a first chassis that includes a touch sensor, a second chassis connected to the first chassis to be rotationally movable relative to each other, a touch controller that is installed on the second chassis, is electrically connected with the touch sensor, receives a detection signal that is output from the touch sensor and outputs data that is based on the received detection signal, a detection unit that detects relative rotational movement of the first chassis and the second chassis and a control unit that disables a result of detection by the touch sensor at least in a time period that the first chassis and the second chassis are being rotationally moved relative to each other on the basis of a result of detection by the detection unit. |
| US11402941B2 |
Input system
An input system is provided which is capable of mitigating certain inconveniences that may arise due to data processing performed by a host processor. The input system includes a first signal path, a second signal path, and a switch section. The first signal path is used for transmitting a signal from a sensor controller to a display controller through the host processor. The second signal path is used for transmitting a signal from the sensor controller to the display controller without passing the signal through the host processor. The switch section is configured to be able to switch between the first signal path and the second signal path. |
| US11402939B2 |
Electronic device with grip-sensor latching system and corresponding methods
An electronic device includes a device housing and at least two grip sensors disposed along the device housing. One or more processors are operable with the at least two grip sensors. At least one electronic latch is operable with the one or more processors. The one or more processors transition the at least one electronic latch from a latched state to an unlatched state when the at least two grip sensors detect a grip applied to the at least two grip sensors. |
| US11402937B2 |
Touch sensor and display device having the same
A touch sensor for a display device includes: a sensing area having a closed shape and including a plurality of sections, and a non-sensing area at least partially surrounding the sensing area; first touch electrodes disposed in the sensing area; and second touch electrodes disposed in the sensing area. The first touch electrodes include first groups of first sub-touch electrodes, and first sub-touch electrodes of at least some of the first groups are spaced at a first substantially equal distance from a center of the closed shape. The second touch electrodes include second groups of second sub-touch electrodes, and second sub-touch electrodes of at least some of the second groups are spaced at a second substantially equal distance from the center of the closed shape. |
| US11402930B2 |
Multi-electrode active stylus tip
In one embodiment, a device includes a stylus tip capable of communicating wirelessly with another device through a touch sensor of the other device. The stylus tip includes one or more surface areas, one or more substrates disposed along one or more of the surface areas of the stylus tip, and a plurality of electrodes disposed on or in the one or more substrates. |
| US11402928B2 |
Mouse switchable between different modes
In one example, a mouse may include a base for movement along a horizontal surface, first and second sets of pins disposed in the base, and an upper shell movable relative to the base between multiple mode positions. The upper shell may include a first button and a second button. The first button and the second button may electrically connect to the first set of pins in a first mode position. The first button and the second button may electrically connect to the second set of pins in a second mode position to switch functions of the first button and the second button. |
| US11402927B2 |
Pointing device
A method for controlling movement of a computer display cursor based on a point-of-aim of a pointing device within an interaction region includes projecting an image of a computer display to create the interaction region. At least one calibration point having a predetermined relation to the interaction region is established. A pointing line is directed to substantially pass through the calibration point while measuring a position of and an orientation of the pointing device. The pointing line has a predetermined relationship to the pointing device. Movement of the cursor is controlled within the interaction region using measurements of the position of and the orientation of the pointing device. |
| US11402925B2 |
Crown input and feedback for head-mountable devices
A head-mountable device can provide a crown module having an input system that allows a user to provide inputs by rotating or otherwise applying torque to a crown of the crown module. The head-mountable device can interpret the rotation and/or torque as a user input. The crown module can further include a feedback system that provides localized haptic feedback at the crown. The haptic feedback can be effectively perceived by the user at the crown without causing the entire head-mountable device to vibrate against the head and/or face of the user. |
| US11402922B2 |
Method for outputting command by detecting object movement and system thereof
The present invention discloses a method for outputting a command by detecting a movement of an object, which includes the following steps. First, an image capturing device captures images generated by the movement of the object at different timings by. Next, a motion trajectory is calculated according to the plurality of images. Further next, a corresponding command is outputted according to the motion trajectory. The present invention also provides a system which employs the above-mentioned method. |
| US11402920B2 |
Gesture recognition method and gesture recognition device having a plurality of radio wave sensors associated with a gesture occurrence area
Each of radio wave sensors is associated with one of sensing areas, each being an area for sending a radio wave signal toward a moving body and receiving the radio wave signal reflected by the moving body. A gesture recognition method includes identifying, as a gesture occurrence area in which the moving body has made a gesture, one of the radio wave sensors based on results of reception by the sensing areas; and recognizing the gesture based on a result of reception by only one of the radio wave sensors associated with the gesture occurrence area. |
| US11402917B2 |
Gesture-based user interface for AR and VR with gaze trigger
A 3D object is opened for presentation on a display in response to a trigger, such as a gaze direction detected by eye tracking in conjunction with a trigger hand gesture. A player's emulated hand in emulated space is configured to have the same gesture as the player's real hand as imaged by a camera, and only when the emulated hand is within the 3D object in emulated space are gestures of the hand correlated to input commands. Otherwise, hand gestures are not considered for correlation to commands. |
| US11402915B2 |
Providing mediated social interactions
Systems and methods of providing mediated social interactions are provided. For instance, a user input from a first user indicative a request to facilitate a provision of emotive contextual signals to a second user can be received. One or more emotive contextual signals to be provided to the second user can be determined based at least in part on the user input. The one or more first emotive contextual signals can include one or more haptic feedback signals intended to facilitate a mediated social interaction associated with the second user. |
| US11402914B2 |
Apparatus for producing a haptic feedback
In an embodiment an apparatus includes a base plate, an interface with a touch-sensitive surface, a piezoelectric actuator and a mechanical reinforcing element, wherein the mechanical reinforcing element is fastened to the piezoelectric actuator, wherein the mechanical reinforcing element is fastened to the interface, wherein the mechanical reinforcing element is configured to deform, as a result of a change of an extension of the piezoelectric actuator, in a first direction such that a partial region of the mechanical reinforcing element is moved relative to the piezoelectric actuator in a second direction perpendicular to the first direction and a force is applied to the interface, wherein the interface is moved, by the force applied, in a direction lateral to the touch-sensitive surface, or wherein the interface is moved, by the force applied, in a direction perpendicular to the touch-sensitive surface. |
| US11402908B2 |
Apparatus and method for selecting item using brain wave
An apparatus and a method for selecting an item using a brain wave signal are disclosed. The method for selecting an item includes: receiving, by a receiver, information on at least one item from a service point; displaying, by a display, the received information on a predetermined area in a mobility; in response to the displayed information, collecting, by a sensor, a brain wave signal for at least one passenger in the mobility for a predetermined time; and determining, by a controller, the passenger's choice by analyzing the collected brain wave signal. |
| US11402905B2 |
EEG brain-computer interface platform and process for detection of changes to mental state
A system for a brain-computer interface (BCI) is provided. The system comprises an output unit configured to trigger a series of mental tasks for the patient, a device having a plurality of electrodes to continuously capture real-time raw electroencephalography (EEG) data from a patient, a server, and a display device to display and update an interface with visual elements based on issued control commands from the server. The server has an acquisition unit configured to receive the electrode data, a processor configured to detect real-time changes in brain-state of the patient in response to the series of mental tasks for the patient, a presentation unit configured to generate visual elements for an interface in real-time, and a display controller configured to issue control commands to update the interface using the generated visual elements. The processor detects the real-time changes in brain-state using the electrode data. The processor is configured to generate a set of features based upon a frequency domain analysis of the EEG data, reduce the dimensionality of the set of features by implementing a feature clustering process to account for redundancy in EEG signal features of the EEG data, and classify the features into a mental state. |
| US11402891B2 |
System, apparatus and method for loose lock-step redundancy power management
A processor includes a plurality of cores, at least two of which may execute redundantly, a configuration register to store a first synchronization domain indicator to indicate that a first core and a second core are associated with a first synchronization domain, and a power controller having a synchronization circuit to cause a dynamic adjustment to a frequency of at least one of the first and second cores to cause these cores to operate at a common frequency, based at least in part on the first synchronization domain indicator. |
| US11402889B2 |
Storage medium, job power estimation method, and job power estimating device
A power estimation method includes acquiring first consumed power information indicating a change in power consumed for a first time period from a first time to a second time within a time period elapsed from the start of the execution of a first job, and second consumed power information indicating a change in power consumed for a second time period from a third time to a fourth time within the time period elapsed from the start of the execution of the first job, the third time being after the second time, generating, from the first consumed power information, a first estimation model for estimating power to be consumed by the job for the first time period, and generating, from the second consumed power information, a second estimation model for estimating power to be consumed by the job for the second time period. |
| US11402885B2 |
Electric power supply system
According to one embodiment, an electric power supply system includes a processor, a power circuit and an embedded controller. The processor includes a first controller configured to modify an operating frequency of the processor and a second controller configured to modify an operating power of the processor. The power circuit and the embedded controller detect a presence or an absence of a battery in parallel. The power circuit instructs the first controller to modify the operating frequency when removal of the battery is detected. The embedded controller causes the second controller to modify the operating power via a Basic Input/Output System (BIOS) when the removal of the battery is detected, and causes the first controller to stop modify the operating power via the power circuit. |
| US11402884B1 |
Crossflow air deflector for high density independent airflow control
A crossflow air deflector part for directing airflow includes a front central spine, a first arcuate wall extending from the spine to a first back lateral edge of the airflow deflector, and a second arcuate wall extending from the spine to a second back lateral edge of the airflow deflector opposing the first back lateral edge. Such an airflow deflector can be implemented into a storage server, positioned between a laterally adjacent pair of data storage device (DSD) chambers and a pair of vertically stacked fans, such that the crossflow air deflector functions to direct airflow from one of the lateral DSD chambers into the lower fan and to direct airflow from the other lateral DSD chamber into the upper fan. Independent airflow control for each DSD chamber and each corresponding DSD is thereby provided. |
| US11402879B2 |
Cover plate, method for preparing the same, display panel, and display device
A cover plate, a method for preparing the same, a display panel, and a display device are provided. The cover plate has a bending zone and a non-bending zone, and the cover plate includes: a substrate layer and a hardened layer attached to the substrate layer, in which the hardened layer includes a first hardened layer portion located in the bending zone, the first hardened layer portion including a mixture of a flexible hardened material and a rigid hardened material. |
| US11402878B2 |
Display device
A display device according embodiment of the present disclosure may include a display main body, an image capturing unit which slides between a first position accommodated inside the display main body and a second position protruding outside the display main body, a guide body provided inside the display main body and slidingly guiding the image capturing unit, and a torsion spring connecting the image capturing unit and the guide body to apply an elastic force to the image capturing unit. The direction of the elastic force applied to the image capturing unit by the torsion spring may change when the image capturing unit passes through a third position located between the first position and the second position. |
| US11402875B2 |
Electronic device including display
An electronic device including a display is provided. The electronic device includes a housing, a display, and a bonding layer. The housing includes a front plate including a flat portion and at least one curved portion bent from a periphery of the flat portion, and disposed to face a first direction, a rear plate disposed to face a second direction that is opposite to the first direction, and a side member including a first surface disposed to face a direction that is perpendicular to the first and second directions, and extending while facing the curved portion and surrounding at least a partial space between the front plate and the rear plate. A first groove is recessed on the first surface in the second direction and in which an edge of the curved portion is accommodated, and a second groove is recessed on the inner side of the housing when viewed from the top of the front plate, the second groove is recessed in the second direction, and to which a bonding liquid is applied. |
| US11402873B2 |
Release mechanisms for coupled devices
A stylus and/or a host device can be provided with components to mitigate and/or avoid damage to the stylus and/or the host device when dropped. Such components can cause the stylus and the electronic device to separate when drop motion is detected. Such separation can reduce and/or prevent damage that would have otherwise occurred if the stylus and the electronic device remained coupled together during impact. Examples of coupling and detachment mechanisms include magnetic and mechanical components. |
| US11402871B1 |
Keyboard movement changes virtual display orientation
Systems, methods, and non-transitory computer readable media containing instructions for causing at least one processor to perform operations for integrating a moveable input device with a virtual display projected via a wearable extended reality appliance. In one implementation, the processor is configured to perform operations comprising receiving motion signals associated with the moveable input device, the motion signals reflecting physical movement; outputting during a first time period, first display signals to the reality appliance, the first display signals being configured to cause the wearable extended reality appliance to virtually present content in a first orientation; outputting during a second time period, second display signals to the wearable extended reality appliance, the second display signals being configured to cause the wearable extended reality appliance to virtually present the content in a second orientation; and switching between the output of the first display signals and the output of the second display signals. |
| US11402867B2 |
Display workstation used on a desktop
The present disclosure discloses a display workstation used on a desktop, comprising an extension module for connection with a power module in the display workstation, and on the peripheral edge of the display workstation, there provides a detachable connection structure by which the extension module can be placed at different positions of the peripheral edge, as a sliding chute comprised by two guide rails is disposed along the edge of the display workstation and the bends of the sliding chute are in arc transition; the extension module is inserted on the guide rails on the outer side and can be connected to power source while sliding with the guide rails along the sliding chute to the required position. |
| US11402863B2 |
Reference voltage circuit
Provided is a reference voltage circuit including a Zener diode having a cathode connected to a current source via a first node, and an anode connected to a ground point; a first resistor having one end connected to the first node; a second resistor having one end connected to another end of the first resistor; a first diode having an anode connected to another end of the second resistor via a second node, and a cathode connected to the ground point; and a current control circuit configured to generate a control current corresponding to an anode voltage of the first diode so that the current source supplies a reference current corresponding to the control current to the first diode. |
| US11402859B2 |
Multiple thermocouple management
An interface module includes: N pairs of input connectors that are electrically conductive and that are configured to connect to and disconnect from N different temperature sensors, respectively; and M output connectors that are electrically conductive, where each pair of input connectors includes: a first input connector configured to connect to and disconnect from a first connector soldered to a first wire connected to one of the N different temperature sensors; and a second input connector configured to connect to and disconnect from a second connector soldered to a second wire connected to the one of the N different temperature sensors, where the second input connectors are electrically connected to second ones of the M output connectors, respectively, and where the first input connectors of the N pairs of input connectors are all electrically connected to a node that is connected to a first one of the M output connectors. |
| US11402858B2 |
Electronic stopper in actuator control
A system and method of controlling a position of a structure. A position command indicating a desired position for the structure and a position feedback signal indicating the position of the structure are received. A position control signal is generated based on a difference between the desired position and the position indicated by the position feedback signal. A stop feedback signal relative to the position of the structure is received. A stop control signal is generated based on the stop feedback signal and a stop condition for the structure. One of the position control signal and the stop control signal is selected. The selected one of the position control signal and the stop control signal is provided to an actuator for controlling the position of the structure. |
| US11402857B2 |
Unmanned aertial vehicle with rotatable net assembly
An example of a drone includes a drone chassis extending along a plane, a plurality of motors attached to the drone chassis and a plurality of propellers coupled to the plurality of motors. The drone includes net assembly mounted to the drone chassis. The net assembly includes a net enclosure rotatably mounted such that an outward facing opening of the enclosure is rotatable about an axis of rotation that is parallel to the drone chassis. |
| US11402856B2 |
Control device of vehicle
An electronic control unit of a vehicle includes (a) a target operating point setting unit that calculates a request driving force requested for a vehicle, and set a target engine operating point through a slow change process for obtaining an engine output that slowly changes with respect to a request engine output implementing the request driving force, (b) a smoothing factor setting unit that changes a smoothing factor used for the slow change process according to an amount of change in a turbocharging pressure in the engine and sets the smoothing factor to a smaller value when the amount of change in the turbocharging pressure is smaller than when the amount of change in the turbocharging pressure is larger, and (c) a drive controller that controls the engine and the continuously variable transmission such that the engine operating point is the target engine operating point. |
| US11402850B2 |
Robotic cleaning device with operating speed variation based on environment
A system and method of causing a robotic device to navigate an area, including accessing a map of an area of travel, causing a transport assembly of the robotic device to move the robotic device in the area at a first speed, collecting information about the area as the robotic device moves in the area by at least one sensor, and processing the information collected. The system and method also include comparing the information collected with the information regarding the area from the map, and determining a degree of confidence that the information collected matches the information regarding the area of travel from the map. When the determined degree of confidence is at or below a first threshold degree of confidence, a first reduced speed mode of operation causes the transport assembly of the robotic device to move at a second, lower speed. |
| US11402840B2 |
Independent trajectory validation system for vehicles
A method includes receiving, by a computing system of a vehicle, a planned trajectory for the vehicle based on first sensor data associated with an external environment. The planned trajectory is generated by a primary computing system associated with a first sensor. The method further includes determining an environmental condition associated with the external environment. The environmental condition is included in second sensor data generated by a second sensor. The method further includes analyzing one or more parameters associated with the planned trajectory to determine whether the planned trajectory is based on the environmental condition, and, in response to determining that the primary computing system fails to base the planned trajectory upon the environmental condition, altering the one or more parameters associated with the planned trajectory to generate an altered planned trajectory. The method thus includes instructing the vehicle to execute the altered planned trajectory. |
| US11402839B2 |
Action planning system and method for autonomous vehicles
An action planning system (100) and method for autonomous vehicles are provided. The system (100) comprises one or more processors (108) and one or more non-transitory computer-readable storage medium (110) having stored thereon a computer program used by the one or more processors (108), wherein the computer program causes the one or more processors (108) to estimate future environment of an autonomous vehicle (114), generate a possible trajectory for the autonomous vehicle (114), predict motion and reactions of each dynamic obstacle in the future environment of the autonomous vehicle (114) based on current local traffic context, and generate a prediction iteratively over timesteps. |
| US11402838B1 |
System for and method of controlling watercraft
A controller controls a propulsion device such that a position of a watercraft is maintained in a front-and-back direction with respect to a standard line extending from a set point in a lateral direction while a direction of the watercraft is maintained along a standard direction defined as the direction of the set point. The controller determines whether or not the watercraft is moving away from the set point in the lateral direction. The controller changes the standard direction in a specific direction by controlling the propulsion device when the watercraft is moving away from the set point in the lateral direction. The controller changes the direction of the watercraft in accordance with the changed standard direction. The controller repeats determining whether or not the watercraft is moving, changing the standard direction, and changing the direction of the watercraft. |
| US11402837B1 |
Item exchange between autonomous vehicles of different services
The present disclosure is directed toward the use of two or more autonomous vehicles, working in cooperation, to deliver an item between a source location and a destination location. For example, an autonomous ground based vehicle may transport an item from a source location to a transfer location and an autonomous aerial vehicle will transport the item from the transfer location to the destination location. The transfer location may be at any location along a navigation path between the source location and the destination location. In some examples, the transfer location may be adjacent the destination location such that the autonomous aerial vehicle is only transporting the item a short distance. |
| US11402836B2 |
Server device, terminal device, communication system, information reception method, information transmission method, information reception program, information transmission program, recording medium, and data structure
A server device efficiently acquires information of a surrounding area of a movable body for updating map information while suppressing communication load. Condition information indicating a condition of autonomous driving is received from a first movable body capable of autonomous driving based on a state of a surrounding area of the first movable body and a map, and a request for state information is transmitted to a second movable body capable of transmitting the state information indicating a state of a place where the first movable body has moved, and when the received condition information indicates that the autonomous driving has been possible, transmission of the request is prevented. |
| US11402831B2 |
Systems and methods for processing objects, including automated mobile matrix bins
A processing system for processing objects using a programmable motion device is disclosed. The processing system includes a perception unit for perceiving identifying indicia representative of an identity of a plurality of objects received from an input conveyance system, an acquisition system for acquiring an object from the plurality of objects at an input area using an end effector of the programmable motion device, wherein the programmable motion device is adapted for assisting in the delivery of the object to an identified processing bin, and the identified processing bin is associated with the identifying indicia and said identified processing location is provided as one of a plurality of processing bins, and a delivery system for bringing the identified processing bin toward the object, where the delivery system includes a carrier for carrying the identified processing bin toward the object. |
| US11402827B2 |
Method for controlling a manufacturing process parameter and electronic device
The present disclosure provides a method for controlling a manufacturing process parameter, a manufacturing execution server, and an equipment interface server. The method includes: acquiring manufacturing process parameter information of an manufacturing equipment; and verifying the acquired manufacturing process parameter information according to reference ranges of manufacturing process parameter information of multiple manufacturing equipments which are registered in advance, and feeding back a verification result. |
| US11402820B2 |
Method and system for building framing and manufacturing system
The present invention is a method for developing a structure design comprising: generating, a catalog of building components; designing, a set of templates for a structure; identifying, a set of restrictions associated with a plot; receiving, a request for a specific type of structure to be constructed on the plot of land; providing, the set of templates of the type of structure, wherein the set of templates are distinct versions of the structure type and receiving a selection of one of the templates; receiving, a set of alterations to the template, wherein a final design is constructed; analyzing, the final design to identify each building component; producing, a pre-assembly plan for the final design; generating, a bill of materials for the final design, wherein the bill of materials accesses the catalog of building components; analyzing, the building components within the bill of materials. |
| US11402818B2 |
Numerical controller and data structure
A numerical controller which can freely and easily specify, as a control point, various positions on a machine configuration and which can easily set coordinate systems in places on the machine configuration. A numerical controller expresses the machine configuration of a control target in graph form where constituent elements are nodes and holds the machine configuration. The numerical controller includes: a control point coordinate system specification portion that specifies, with the identifier, one or more groups of the control point and the coordinate system; a command value determination portion that uses the specified control point and the coordinate system to determine for which control point and on which coordinate system one or more command values commanded in a program correspond to a coordinate value; and a movement command portion that commands a move of the control point such that the coordinate value of the control point is the command value. |
| US11402815B2 |
Control apparatus
A control apparatus where control programs and information programs coexist is allowed to change programs flexibly. The control programs and information programs are installed in the control apparatus, which is provided with a shared area. The shared area is an area that at least one control program and at least one information program can access. Shared information is stored in the shared area. The shared information includes at least one of information related to an I/O port accessed by the control programs, and information related to the control program. Each control program is a program that performs scan operation of outputting control information on the relevant control object apparatus coupled to the I/O port accessed for controlling a control object apparatus with respect to the control program, to this I/O port. Each information program is a program that performs information processing that does not include the scan operation. |
| US11402813B2 |
Wall mountable universal backplane
Methods and system for adding sensors/devices to a building management system. An illustrative universal backplane for accepting a plurality of building control sensors may include a housing configured to be secured relative to a wall of a building and a plurality of universal sensor receiving bays each including the same mechanical and electrical interface for selectively receiving one of a plurality of compatible building control sensors. Each of the plurality of compatible building control sensors may be compatible with the mechanical and electrical interface of the universal sensor receiving bays. The backplane may further include a controller operatively coupled to each of the plurality of universal sensor receiving bays, the controller configured to automatically discover each of the compatible building control sensors, if any, received by the plurality of universal sensor receiving bays and a communication module operatively coupled to the controller for communicating with a building control system. |
| US11402810B2 |
Learning device and cutting process evaluation system
A learning device includes an input processor and a learning processor. The input processor acquires a physical quantity related to a cutting process, and inputs a state variable based on the physical quantity to the learning processor, and the learning processor updates, based on a measured cutting result, an evaluation model that outputs an evaluation result of the cutting process based on the state variable. |
| US11402808B2 |
Configuring a system which interacts with an environment
A system is described for configuring another system, e.g., a robotics system. The other system interacts with an environment according to a deterministic policy by repeatedly obtaining, from a sensor, sensor data indicative of a state of the environment, determining a current action, and providing, to an actuator, actuator data causing the actuator to effect the current action in the environment. To configure the other system, the system optimizes a loss function based on an accumulated reward distribution with respect to a set of parameters of the policy. The accumulated reward distribution includes an action probability of an action of a previous interaction log being performed according to the current set of parameters. The action probability is approximated using a probability distribution defined by an action selected by the deterministic policy according to the current set of parameters. |
| US11402800B2 |
NB controller and form factors
A system includes a plurality of optical identifiers and a reader for the optical identifiers. Each optical identifier has an optical substrate and a volume hologram (e.g., with unique data, such as a code page) in the optical substrate. The reader for the optical identifiers includes a laser, and a camera. The laser is configured to direct laser light into a selected one of the optical identifiers that has been placed into the reader to produce an image of the associated volume holograms at the camera. The camera is configured to capture the image. The captured image may be stored in a digital format by the system. |
| US11402797B2 |
Process cartridge
A process cartridge removably disposed in an imaging device provided with a rotational force output head. The process cartridge (100) includes a cartridge body, a rotation component having a rotation axis L1, and a driving force receiving assembly. The driving force receiving assembly is disposed at an end of the cartridge body, and includes a rotational force receiving member and a position adjusting mechanism. The rotational force receiving member is provided with a rotational force receiving portion, a connection portion, and a rotational force transmitting portion. The position adjusting mechanism enables the rotational force receiving member to rotate in a preset direction. |
| US11402793B2 |
Rotating body, member to be inserted with shaft, retaining member, and apparatus
A rotating body to be inserted with a shaft includes a holding portion on an end portion of the rotating body to hold the rotating body on the shaft. The holding portion includes a hook to be elastically deformable and detachably hook on a recess of an end portion of the shaft. The holding portion is rotatingly movable, with elastic deformation of the hook, over a convex portion of the shaft that is outside the recess in an axial direction of the shaft. |
| US11402792B2 |
Developer collecting container
A developer collecting container 1, mountable to and dismountable from an accommodating portion 10 provided in an apparatus, for collecting a collected matter which is powder or a fluid collected in the apparatus has a constitution in which a bonding portion 5 partially bonding opposing sides of sides forming an accommodating portion 3 for accommodating the collected matter is provided and in which at least a part of the bonding portion 5 is positioned below a height at which a volume of the accommodating portion 3 is half of a target collecting volume in a case that the volume is measured upwardly from a lowermost portion with respect to a direction of gravitation. |
| US11402788B2 |
Stable image formation apparatus utilizing toner release agents
An image forming apparatus forms a stable image on a recording material by using toner containing a release agent. A toner image can be formed on the recording material using a fixer, and a reverse transport path arranged on a downstream side of the fixer can reverses and transports the recording material after fixing. A reverse roller provided on the reverse transport path can reverse and send out the recording material by reversely transporting the recording material. A transporter can be provided between the fixer and the reverse roller on the reverse transport path, and a release agent remover removes the release agent adhering to the reverse roller. In embodiments, the transporter can include a release agent adhesion preventer that prevents the release agent from adhering to the transporter. |
| US11402785B2 |
Image forming apparatus
An image forming apparatus includes an image forming section, a detector, and a display section. The image forming section forms an image on a first side of a sheet. The sheet has the first side and a second side. The detector is positioned upstream of the image forming section in a sheet conveyance direction. The detector detects whether or not an image has been formed on the first side of the sheet. The display section displays information indicating that an image has been formed on the first side of the sheet when the detector detects that an image has been formed on the first side of the sheet. |
| US11402778B2 |
Image forming apparatus that sets a target temperature for a fixing unit based on a minimum number of continuous pixels in a line
An image forming apparatus includes an image forming unit, a fixing unit, an image analyzer, and a temperature controller configured to control a temperature of the fixing unit in accordance to a target temperature. The image analyzer is configured to analyze image data for forming the toner image by the image forming unit, to evaluate a continuity of pixels of an image contained in the image data. The temperature controller is configured to change the target temperature based on analysis results of the image analyzer such that a value of the target temperature in a case where the image data contains an image with a continuity of pixels equal to or smaller than a predetermined value is higher than a value of the target temperature in a case where the image data contains no image with a continuity of pixels equal to or smaller than the predetermined value. |
| US11402769B2 |
Image forming apparatus and control method therefor
An image forming apparatus includes a housing having an opening, a cover configured to openably close the opening, photosensitive drums, cartridges, a first motor and a controller. Each cartridge has a developing roller, a storage chamber configured to store toner, and an agitator configured to agitate the toner. The first motor is configured to rotate the agitators. The controller rotates the agitators by rotating the first motor when forming an image on a sheet. The controller determines whether a new cartridge is included in the plurality of cartridges in response to the image forming apparatus being turned on or in response to the cover being closed. In a case where a new cartridge is included, the controller stirs toner with the agitators by rotating the first motor. In a case where a new cartridge is not included, the controller does not stir the toner. |
| US11402764B2 |
Toner detecting device
A resonance circuit (2) includes a capacitor (C1) and an inductor (L1, L2) of which an inductance is changed depending on developer including toner, and generates an output voltage corresponding to the inductance. A detecting circuit (3) detects the toner on the basis of the output voltage. An adjustment-purpose closed circuit (4) includes a semi-fixed resistor (VR1) and an adjustment inductor (L3) that forms magnetic coupling with the inductor (L1, L2), and causes an inductance of the inductor (L1, L2), a resonance frequency of the resonance circuit (2), an amplitude of the output voltage and a detected toner amount to be adjustable with a variable resistance value of the semi-fixed resistor (VR1). |
| US11402760B2 |
Optical arrangement and lithography apparatus
An optical arrangement for a lithography apparatus has a microsystem with a mirror array. A respective mirror of the mirror array is set up to reflect working light of the lithography apparatus on its front side and also a measuring beam on its rear side. One or more radiation sources, which are provided outside the microsystem, are set up to provide the respective measuring beam. One or more sensor units are set up to sense a tilting angle of a respective mirror in dependence on the respectively reflected measuring beam. |
| US11402753B2 |
Positive resist composition, resist film formation method, and laminate manufacturing method
Provided is a positive resist composition capable of improving the adhesion between a resist film formed through pre-baking and a workpiece and reducing changes in the molecular weight of the polymer in the resist film before and after pre-baking step over broader ranges of heating temperature and heating time (at lower heating temperatures) during pre-baking. The positive resist composition comprises a polymer and a solvent, wherein the polymer has a monomer unit (A) represented by the following general formula (I) and a monomer unit (B) represented by the following general formula (II), and wherein the solvent is at least one selected from the group consisting of isoamyl acetate, n-butyl formate, isobutyl formate, n-amyl formate, and isoamyl formate: |
| US11402751B2 |
Imprint mold-forming synthetic quartz glass substrate
In an imprint mold-forming synthetic quartz glass substrate (1) of rectangular shape having dimensions L1 and L2 with L1≥L2, a circular region is delineated on the substrate back surface by a circle of radius R with L2−2R≥10 mm. When approximation analysis is performed from the 1st to 8th term in the Zernike polynomials on the circular region, a coefficient of the 4th term is equal to or greater than −(2R/100,000×1) μm. |
| US11402750B2 |
Curable composition for imprinting, method of manufacturing cured product pattern, method of manufacturing circuit substrate, and cured product
A curable composition for imprinting satisfies the following A to C: A: the curable composition includes a polyfunctional polymerizable compound having a polymerizable group equivalent of 150 or higher; B: the curable composition includes a photopolymerization initiator; and C: the curable composition satisfies at least one of a condition that the content of an ultraviolet absorber in which the light absorption coefficient at a maximum emission wavelength of an irradiation light source is 1/2 or higher of the light absorption coefficient of the photopolymerization initiator is 0.5 to 8 mass % with respect to non-volatile components or a condition that the content of a polymerization inhibitor is 0.1 to 5 mass % with respect to the non-volatile components. The non-volatile components refer to components in the curable composition for imprinting other than a solvent. |
| US11402749B2 |
Drop pattern correction for nano-fabrication
A preliminary drop pattern is provided that defines a predetermined location on a substrate for a center of mass of each drop of a plurality of drops. The preliminary drop pattern is adjusted to generate an adjusted drop pattern by radially shifting each drop of a subset of drops of the plurality of drops from the predetermined location by a radial offset. The plurality of drops is dispensed according to the adjusted drop pattern. A template or a superstrate is contacted with the dispensed drops, after which the center of mass of each drop of the subset of drops is radially displaced to a displaced location on the substrate prior to the plurality of drops forming a continuous layer. The radial offset is selected such that the displaced location is within 50 μm of the predetermined location of the corresponding drop of the preliminary drop pattern. |
| US11402745B2 |
Mask for EUV lithography and method of manufacturing the same
A mask for extreme ultraviolet (EUV) lithography includes a multilayer (ML) stack including alternating metal and semiconductor layers disposed over a first surface of a mask substrate, a capping layer disposed over the ML stack, and an absorber layer disposed over the capping layer. An image pattern is formed in the absorber layer. A border layer surrounding the image pattern is disposed over the absorber layer. |
| US11402743B2 |
Mask defect prevention
A photolithographic mask assembly according to the present disclosure accompanies a photolithographic mask. The photolithographic mask includes a capping layer over a substrate and an absorber layer disposed over the capping layer. The absorber layer includes a first main feature area, a second main feature area, and a venting feature area disposed between the first main feature area and the second main feature area. The venting feature area includes a plurality of venting features. |
| US11402742B1 |
Undercut EUV absorber reflective contrast enhancement
An EUV mask absorber formed on a semiconductor structure, includes, in part a sidewall forming am angle relative to a surface of the semiconductor structure that is less than 90 degrees. The sidewall includes a layer of reflective material. The semiconductor structure may include, in part, a multitude of layers. The semiconductor structure may be disposed on a glass substrate, a silicon substrate, or the like. The EUV mask absorber is adapted to shift a phase of the EUV light passing therethrough. The EUV mask absorber may further include, in part, a layer of Ruthenium near a bottom surface of the absorber structure. The EUV mask absorber may further includes, in part, a layer of reflective material near a top surface of the absorber structure. The EUV mask absorber may further include, in part, Tantalum Oxynitride. |
| US11402739B2 |
Apparatus for displaying still and moving images on a three-dimensional projection screen
An apparatus for displaying still and moving images on a three-dimensional projection screen includes a gas-inflatable envelope made of flexible material with an inner surface serving as three-dimensional projection screen, a gas inlet opening, a fan connected to the gas inlet opening and which generates a gas flow that inflates the envelope, an interior surrounded by the envelope, a projector emitting a projector beam and a reflection mirror set up in the zenith of the envelope, said reflection mirror having a curved mirror surface for deflecting the projector beam onto the inner surface of the envelope. The image generated by the projector beam is visible on the outer surface of the envelope. The projector is configured within the interior of the envelope and aligned in such a way that the projector beam is reflected onto the inner surface serving as a three-dimensional projection screen via the reflection mirror. |
| US11402736B2 |
Light source system and projection device
A light source system includes an excitation light source configured to generate an excitation light; a wavelength conversion device including a conversion region and a non-conversion region, wherein the conversion region is configured to perform a wavelength conversion on the excitation light and first light along a first optical path, the non-conversion region is configured to scatter the excitation light and emit second light along a second optical path, and the conversion region is further configured to emit unconverted excitation light as third light along a third optical path; an adjustment device configured to guide and adjust the first light, the second light and the third light to be emitted in a first divergence angle, a second divergence angle, and a third divergence angle, respectively; and a first reflective element configured to guide the second light and a portion of the third light to enter the adjustment device. |
| US11402733B2 |
Projecting apparatus
A projecting apparatus is provided, and includes a frame, a light source module, at least one collimator lens, at least one adhesive, and a microelectromechanical systems (MEMS) module. The frame includes a first frame portion and a second frame portion. The first frame portion has a carrier and a carrying bridge having an end connected to the carrier. The frame has a processing slot that uses the carrying bridge as a bottom thereof, and the carrying bridge has at least one thru-hole that is in spatial communication with the processing slot. The second frame portion is connected to the carrier and another end of the carrying bridge of the first frame portion. The at least one adhesive corresponds in position to the at least one thru-hole, and connects the at least one collimator lens onto the carrying bridge. The MEMS module is disposed on the second frame portion. |
| US11402732B2 |
Dynamic projection device, method and projector
Embodiments of the present disclosure relate to the technical field of digital projection display, and disclose a dynamic projection device, a dynamic projection method, and a projector. The device includes: a projection unit configured to output a projection picture according to a projection image; a reflection unit configured to reflect the projection picture to a target projection position; an angle calculation unit connected with the reflection unit and configured to calculate a rotation angle of the reflection unit; and an image correction unit connected with the angle calculation unit and the projection unit, respectively, and configured to correct the projection image according to the rotation angle. The present disclosure adjusts the projection direction by controlling the reflection unit with simple structure and light weight, realizing convenient direction control and high-quality projection display, and covering a wide area of the projection environment. |
| US11402721B2 |
Optical device, method for controlling optical device, and image display apparatus
A method for controlling an optical device including a movable section including an optical section that refracts incident video image light and outputs the refracted video image light and a holding section that supports the optical section, and an actuator that causes the movable section to swing, the method including applying a drive signal to the actuator to cause the movable section to swing. The drive signal is a wave having a trapezoidal waveform, and the trapezoidal wave has a first flat section where first voltage is applied for a first period, a second flat section where second voltage higher than the first voltage is applied for a second period, and a third flat section where third voltage higher than the first voltage and lower than the second voltage is applied for a third period after the first voltage is applied and before the second voltage is applied. |
| US11402720B1 |
Chromatic devices comprising a salt-based electrolyte
In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer. |
| US11402716B2 |
Visual range adjustment component and driving method thereof, visual range adjustment device, and display device
A visual range adjustment component and a driving method thereof, a visual range adjustment device, and a display device are disclosed. The visual range adjustment component includes a first substrate; a second substrate; an electrolyte layer; and a plurality of electrochromic elements. Each of the plurality of electrochromic elements includes a first transparent electrode, two second transparent electrodes and an electrochromic layer; the first transparent electrode is located on a side of the first substrate facing the second substrate and the second transparent electrode is located on a side of the second substrate facing the first substrate; the electrolyte layer is arranged to be in contact with the first transparent electrode, the second transparent electrode, and the electrochromic layer, respectively; the first transparent electrode and the two second transparent electrodes respectively drive the electrochromic layer to change color through the electrolyte layer to adjust a visual range. |
| US11402715B2 |
Display apparatus comprising thin film transistor
Disclosed is a display apparatus and a method for manufacturing the same, wherein the display apparatus comprises a substrate, a light shielding layer and a signal line on the substrate, a buffer layer on the light shielding layer and the signal line, an active layer on the buffer layer, a gate insulating film on the active layer, a gate electrode on the gate insulating film, a protection layer on the gate electrode, a first electrode of a display device on the protection layer, and a connection electrode configured to connect the signal line and the active layer with each other, wherein the light shielding layer and the signal line are disposed on the same layer, and the connection electrode and the first electrode are formed of the same material. |
| US11402710B2 |
Display substrate, display panel, and display apparatus
A display substrate may include at least one connection structure (1) in a non-display area (89) of the display substrate. The at least one connection structure (1) may include a first conductive layer (11), at least one insulating layer (19) on the first conductive layer (11), and a second conductive layer (12) on a side of the at least one insulating layer (19) opposite from the first conductive layer (11). The second conductive layer 12) may be connected to the first conductive layer (11) through a plurality of via holes (3) in the at least one insulating layer (19), and at least two of the plurality of via holes (3) may have different contact areas with the first conductive layer (11). The display substrate can be at least partially solves the problem that the through hole is easy to be burnt when over-current problem. |
| US11402707B2 |
Liquid crystal display device comprising a first liquid crystal layer having positive dielectric anisotropy and a second liquid crsytal layer having negative dielectric anisotropy
A liquid crystal display device includes: a first liquid crystal cell; a second liquid crystal cell disposed in a backlight side; and a first optical sheet and a second optical sheet both having an identical layer structure. The first optical sheet is disposed on a front surface side of the first liquid crystal cell and the second optical sheet is disposed on a back surface side of the second liquid crystal cell, or vice versa. |
| US11402705B2 |
Liquid crystal display panel and manufacturing method thereof
A liquid crystal display panel and a manufacturing method thereof are provided, in which transparent traces are prepared on a first substrate to replace metal traces originally under a sealant, so that ultraviolet light is irradiated on the sealant from a side of the transparent traces in a process of curing the sealant, which can effectively improve a curing rate of the sealant. Moreover, transparent conductive polymer has better corrosion resistance than metal, which can effectively prevent circuit corrosion caused by the sealant absorbing water. |
| US11402696B2 |
Optical element and method of manufacturing optical element
An optical element includes: a support; an alignment layer that is provided on one surface of the support and has an uneven structure in which a recess portion and a protrusion portion are alternately provided, the recess portion extending in a line shape including a curve having a curvature of 3.0 mm−1 or higher, and the protrusion portion extending in a line shape including a curve having a curvature of 3.0 mm−1 or higher; and a liquid crystal layer having an alignment pattern in which an optical axis of a liquid crystal molecule is parallel to the surface of the support and is aligned along the recess portion and the protrusion portion in the alignment layer. |
| US11402694B2 |
Light-emitting component and display apparatus
The present application discloses a light-emitting component and a display apparatus. The light-emitting component includes a first diffusion layer, a first prism sheet disposed below the first diffusion layer; a second prism sheet disposed below the first prism sheet; a second diffusion layer disposed below the second prism sheet; a flexible substrate disposed below the second diffusion layer; a second substrate attached to the flexible substrate; an emission layer disposed between the second diffusion layer and the flexible substrate; the emission layer is integrated on the flexible substrate; the emission layer includes a photoluminescence layer and an electroluminescent layer; the photoluminescence layer is disposed between the second diffusion layer and the flexible substrate; and the electroluminescent layer is disposed between the photoluminescence layer and the flexible substrate. |
| US11402678B2 |
Display device
A display device comprising: a substrate having a display region; a plurality of temperature detection wires arranged at positions overlapping with the display region in plan view; and a light detection electrode overlapping with temperature detection regions of the temperature detection wires in plan view. |
| US11402675B1 |
Viewing angle switch module and display apparatus
A viewing angle switch module includes a viewing angle limiter, a first electronically controlled viewing angle switch, a second electronically controlled viewing angle switch, a first polarizer, and a second polarizer. The viewing angle limiter has an absorption axis, and an axial direction of the absorption axis is parallel to a thickness direction of the viewing angle limiter. The viewing angle limiter, the first electronically controlled viewing angle switch, the first polarizer, the second electronically controlled viewing angle switch, and the second polarizer are overlapped. An axial direction of a first absorption axis of the first polarizer is parallel to an axial direction of a second absorption axis of the second polarizer. A display apparatus adopting the viewing angle switch module is also provided. The viewing angle switch module and the display apparatus provided by the invention have better light energy utilization rate. |
| US11402672B2 |
Quantum confined nanostructures with improved homogeneity and methods for making the same
A method that includes: providing a substrate including a layer of a crystalline material having a first surface; and exposing the first surface to an environment under conditions sufficient to cause epitaxial growth of a layer of a deposition material on the first surface, wherein exposing the first surface to the environment includes illuminating the substrate with light at a first wavelength while causing the epitaxial growth of the layer of the deposition material. The first surface includes one or more discrete growth sites at which an epitaxial growth rate of the quantum confined nanostructure material is larger than areas of the first surface away from the growth sites by an amount sufficient so that the deposition material forms a quantum confined nanostructure at each of the one or more discrete growth sites. |
| US11402671B2 |
Scalable and programmable coherent waveform generators
The disclosure describes various aspects of a system with scalable and programmable coherent waveform generators. A network and digital-to-analog conversion (DAC) cards used by the network are described where each DAC card has a clock divider/replicator device with an input SYNC pin, a digital logic component, and one or more DAC components, and each output of the DAC components is used to control optical beams for a separate qubit of a quantum information processing (QIP) system. The network also includes a first distribution network to provide a clock signal to the clock divider/replicator device in the DAC cards, and a second distribution network to provide a start signal to the DAC cards, where the start signal is used by the digital logic component in the DAC card to assert the input SYNC pin when the start signal is asserted unless it is masked by the digital logic component. |
| US11402669B2 |
Housing surface with tactile friction features
A glass component of an electronic device housing may define a textured surface having micro-scale tactile friction features that provide a specified friction between a user's finger and the glass component. More specifically, the tactile friction features may reduce a contact surface area that is in contact with the user's finger in order to produce a reduced or specified coefficient of friction. |
| US11402668B2 |
Frame component, temple, frame, and eyewear
This frame component constituting a frame of eyewear is provided with: a housing having a first surface that has a first recess portion formed therein, and a first hole that opens to the first recess portion; a first device disposed in the first recess portion; and a fastening member inserted into the first hole and fixing the first device to the housing. Through this configuration, a frame component is provided which can reduce the thickness dimension of a portion in which a device is provided. |
| US11402664B2 |
Glasses
The present disclosure provides a pair of glasses, including spectacle lenses and a sensing device, wherein the spectacle lens includes two layers of lenses which form a cavity, wherein the layer of lens on a wearing side of the spectacle lens is deformable, the cavity is filled with a first liquid and a second liquid, a volume of the first liquid is greater than that of the second liquid, and an electrowetting film is provided oppositely on a middle portion of an inner surface of at least one layer of lens, and wherein the sensing device is configured to measure a distance between the glasses and an object to be observed, wherein in the case where the measured distance is less than a preset spacing, the sensing device is turned on to apply a voltage to the electrowetting film. |
| US11402663B2 |
Treating ocular refractive error
A lens for an eye that includes a zone with a first power profile for images received by the retina on the fovea, a zone with a second power profile for images received by the peripheral retina on the nasal side and a zone with a third power profile for images received by the peripheral retina on the temporal side. The first power profile is selected to provide clear or acceptable vision and the second and third power profiles are selected to affect the peripheral image position. |
| US11402660B1 |
Multiply adjustable eyeglass frames
Eyeglass frames that are both adjustable fore and aft on each side, and that allow each lens to be raised or lowered slightly so that the glasses fit well with both lenses at the same vertical level. Embodiments of the present invention includes a small ratchet and hinge on each arm that allows the forward part of the frame to rotate slightly up or down. In addition, in other embodiments, both legs can have a sliding length adjustment that allows the leg to fit snugly behind the ear on each side with the lens in the correct fore and aft position. Some embodiments of the present invention have both features present, while other embodiments have only one or the other feature. |
| US11402657B2 |
Information processing device for display device, information processing method for display device, and program for display device
The present invention provides an information processing device and the like for a display device to represent, on the display device, a three-dimensional spatial representation that can be seen from a wide viewpoint direction. The display device includes a refraction means for refracting light and having a circle-shaped cross section; an arrangement support means for arranging and supporting a plurality of the refraction means in a convex shape with respect to a viewpoint side, and an image forming means for forming a formed-image on an opposite side surface to the viewpoint side with respect to the refraction means. The information processing device extracts an image data of a display element image displayed on each of the refraction means so as to look like three-dimensional spatial representation, from a three-dimensional spatial representation data for three-dimensional-spatially representing a display target, and generates a formed-image data for forming the formed-image in the opposite side to the viewpoint side of the predetermined refraction means so that the display element image can be displayed by a light having passed through the predetermined refraction means. |
| US11402656B2 |
Display switching device, display device and electronic device
A display switching device, a display device and an electronic device are provided. The display switching device includes: a controller; and a lens array, including a plurality of diffractive lenticular lenses, wherein each of the diffractive lenticular lenses includes: a first substrate, including a diffraction phase grating array; a liquid crystal element, including liquid crystal being filled in the diffraction phase grating array; a first electrode layer and a second electrode layer configured to apply a voltage to the liquid crystal element, wherein the controller is configured to acquire a corresponding display mode and apply a control voltage corresponding to the display mode to the first electrode layer and the second electrode layer according to the display mode to change a refractive index state of the liquid crystal element. |
| US11402651B2 |
Lens driving device, camera module and camera mounting device
A lens driving device, a camera module and a camera mounting device are provided, which are capable of ensuring a high reliability, improving the OIS sensitivity, and simplifying the assembly operation. The lens driving device includes an auto-focusing driving part and a shake-correcting driving part utilizing a voice coil motor. A shake-correcting magnet part of the shake-correcting driving part is comprised of two shake-correcting magnets disposed on two orthogonal sides of four sides that define a rectangle in a plane perpendicular to the light axis direction. An auto-focusing magnet part of the auto-focusing driving part is comprised of at least one of the shake-correcting magnets. An auto-focusing supporting part of the auto-focusing driving part is fixed on at least one side of the rectangle where the auto-focusing magnet part is not disposed, and elastically supports an auto-focusing movable part with respect to an auto-focusing fixing part in a cantilever fashion. |
| US11402645B2 |
Virtual image display device
A virtual image display device includes: a display unit that generates an image display light; and a projection optical system that projects the image display light L toward the virtual image presentation plate. The projection optical system includes a projection mirror that projects the image display light toward the virtual image presentation plate and an optical device of transmission type provided such that a light axis intersects at an angle to a light path of the projection optical system. The display unit is provided at a focal point of a composite optical system within a meridional plane, the composite optical system being formed by the virtual image presentation plate and the projection optical system. |
| US11402644B1 |
Head securement for head-mountable device
Systems of the present disclosure can provide a head-mountable device that distributes securement forces to sides of the user's head. A head-mountable device can include a head securement element with arms that clamp onto sides of the user's head. Such arms can be pivotably coupled to a frame of the head-mountable device. Where a band is provided, the band can have an adjustable width that tightens onto the sides of the user's head to reduce the load on the front and rear of the user's head. A head-mountable device can also distribute forces (e.g., weight) onto the top of the user's head without restricting facial features of the user (e.g., forehead, eyes, etc.). |
| US11402643B2 |
Adjustable bone conduction speaker for head mounted display
Apparatuses, methods, systems, and program products are disclosed for adjustable bone conduction speaker for head mounted display. An apparatus includes a sliding member couplable to a head mounted display (“HMD”) unit and comprising at least one bone conduction speaker, the sliding member adjustable along a first axis to position the bone conduction speaker along the first axis. An apparatus includes a protrusion member coupled to the sliding member and housing the at least one bone conduction speaker, the protrusion member adjustable along a second axis, substantially perpendicular to the first axis, to position the bone conduction speaker along the second axis. |
| US11402642B2 |
Head-mounted display assemblies and related methods for interpupillary distance adjustments
The disclosed head-mounted display assemblies may include a first eyecup and a second eyecup that are configured for respectively positioning a first lens and a second lens in front of intended locations of a user's eyes when the head-mounted display assembly is donned. The first eyecup and the second eyecup may be movable relative to each other to adjust for an interpupillary distance of the user's eyes. A single near-eye display screen may be configured for displaying an image to the user through the first and second eyecups. An enclosure over the single near-eye display screen may include a first transparent component positioned between the first lens and the single near-eye display screen and a second transparent component positioned between the second lens and the single near-eye display screen. Various other methods, devices, systems, and assemblies are also disclosed. |
| US11402641B1 |
Acoustic unit for wearable device
A hybrid acoustic unit operates as an acoustic monopole for frequencies of audio output below a threshold frequency and as an acoustic quadrupole for frequencies above the threshold frequency. A first transducer provides the low frequencies below the threshold frequency while a second transducer provides the high frequencies above the threshold frequency. The low frequencies improve perceived loudness to a user while being masked from bystanders due to ambient noise. A region of an acoustic pattern produced by the acoustic quadrupole is directed towards an ear of the user. This improves audibility to the user while substantially reducing loudness of those high frequencies to bystanders. |
| US11402639B2 |
Optical configurations for head-worn see-through displays
Aspects of the present invention relate to methods and systems for providing a high transmission see-through view of the environment while trapping escaping light from the display system. In embodiments, a camera system is also provided that is aligned with the display system to provide images of the environment in a viewing direction of the user. |
| US11402637B2 |
Headset and head-mounted display
Headsets and head-mounted displays including first and second diffractive elements are described. In some cases, the first and second diffractive elements include first and second grating surfaces, and for at least one wavelength, the first and second grating surfaces have at least one different corresponding diffractive property. The head-mounted display may include two-dimensionally pixelated adjacent first and second display surfaces for displaying images, and first and second diffractive elements disposed adjacent the respective first and second display surfaces. In some cases, the first diffractive element is configured to diffract a first wavelength λ1, but not a different second wavelength λ2, into zero and first diffraction orders having intensities within 5% of each other, and the second diffractive element is configured to diffract the second wavelength λ2, but not the first wavelength λ1, into zero and first diffraction orders having intensities within 5% of each other. |
| US11402636B2 |
Method and system for waveguide projector with wide field of view
A waveguide display disposed in glasses includes a first pupil expander assembly operable to project a first image defined by a first field of view, and a second pupil expander assembly disposed adjacent the first pupil expander assembly and operable to project a second image defined by a second field of view different from the first field of view. The first pupil expander assembly is operable to emit light at a first non-zero angle with respect to a first emission plane associated with the first pupil expander assembly. The second pupil expander assembly is operable to emit light at a second non-zero angle with respect to a second emission plane associated with the second pupil expander assembly. The first non-zero angle is opposite to the second non-zero angle. |
| US11402635B1 |
Systems and methods for measuring visual refractive error
A method may include displaying, to a user, a first color in a first area and a second color in a second area, where (1) the second color has a longer wavelength than the first color and (2) the first and second color have an expected longitudinal chromatic aberration for a human eye. The method may also include receiving, from the user, an indication of whether the user perceives (1) the first area as being clearer than the second area or (2) the second area as being clearer than the first area. The method may further include determining, based on the indication of the user and the expected longitudinal chromatic aberration, information about a refractive error of the user's vision. Various other methods, systems, and devices are also disclosed. |
| US11402634B2 |
Hand-locked rendering of virtual objects in artificial reality
In one embodiment, a method includes, by one or more computing devices, determining, based on first tracking data, a first viewpoint of the user and a first hand pose of the user. The method may include generating a virtual object in a virtual environment based on the first hand pose and a predetermined spatial relationship between the virtual object and the hand of the user. The method may include rendering a first image of the virtual object as viewed from the first viewpoint. The method may include determining, based on second tracking data, a second viewpoint of the user and a second hand pose. The method may include adjusting the first image of the virtual object based on changes from the first hand pose to the second hand pose. The method may include rendering and displaying a second image from the adjusted first image viewed from the second viewpoint. |
| US11402632B2 |
Head-up display
A head-up display includes: a display medium onto which a virtual image is projected; a display that displays an image; and a projection optical system that forms the virtual image on a side opposite an observer across the display medium. The projection optical system includes a mirror disposed above the display. 3<α−(θ+φ)/2<11.7 is satisfied, where θ denotes an angle between a line segment connecting centers of the mirror and the display and a normal line at the center of the mirror, α denotes an angle between the line segment connecting the centers of the mirror and the display and a normal line at the center of the display, and φ denotes an inclination angle at an edge of the mirror closer to the display relative to the center of the mirror. |
| US11402630B2 |
Head-up display and moving body with head-up display mounted thereon
A head-up display is configured to project an image on a transparent reflection member to cause an observer to visually recognize a virtual image, and includes a display device configured to display the image, and a projection optical system configured to project the image displayed by the display device as the virtual image for the observer. The projection optical system is configured to form the image as an intermediate image, and includes a first optical element configured to condense light, a first lens configured to condense light, and a second optical element configured to diffuse light. The first optical element, the first lens, and the second optical element are disposed in this order along an optical path from the display device. |
| US11402628B2 |
Vehicular display apparatus and vehicular display method
A vehicular display apparatus that displays an image on a windshield of a vehicle has an attention target detector configured to detect an attention target to which attention of a driver of the vehicle needs to be drawn, and calculate a distance from the attention target to the vehicle, and a display controller configured to perform display control that displays an attention mark on the windshield in a superimposed manner such that, from a point of view of the driver, the attention mark is displayed close to the attention target detected by the attention target detector, the attention mark being displayed to draw the attention of the driver to the attention target. The display controller sets a base point at a position of the attention target on the windshield, sets a display position of the attention mark at a position which is a predetermined distance away from the base point. |
| US11402621B2 |
Objective lens for endoscope and endoscope
An objective lens for an endoscope consists of a first lens group that consists of a negative lens, a second lens group that consists of a negative lens, a third lens group that consists of a cemented lens, an aperture stop, a fourth lens group that consists of a single lens having positive refractive power or a cemented lens having positive refractive power as a whole, and a fifth lens group that consists of a cemented lens including two lenses having refractive power having signs different from each other and cemented to each other; and the first lens group, the second lens group, the third lens group, the fourth lens group, and the fifth lens group are arranged in this order from an object side toward an image side. The objective lens for an endoscope satisfies a predetermined conditional expression related to the cemented lenses. |
| US11402618B2 |
Microscope objective
A microscope objective includes: a first lens group that has a positive refractive power and includes a first cemented lens; and a second lens group, the first lens group and the second lens group having concave surfaces adjacent to and facing each other. The second lens group includes: at least one lens component that has a negative refractive power overall; a second cemented lens; and a single lens having a positive refractive power. An axial marginal light ray height is maximized at the lens surface of the microscope objective that is the closest to an image. The microscope objective satisfies the following conditional expression: −0.38≤Fs/FC2≤0.38 (1) where FC2 indicates the focal length of the second cemented lens for an e line, and Fs indicates the focal length of the single lens for the e line. |
| US11402617B2 |
System and method for generating white light for projectors
A system and method of generating white light for a projection system in a compact form factor using laser diodes, a reflection system, and a phosphor target. Light emitted from the laser diodes can be directed towards a region of the phosphor target, where the phosphor target is excited and emits light in a desired spectrum in all directions. Some emitted light is collected by a collection lens. The emitted light collected by the collection lens can be combined with light from the original laser diodes to create white light for use in the projection system. Light emitted in a direction away from the collection lens can be redirected to the collection lens by the reflection system that employs a curved reflector on one side of the phosphor target and a flat reflector on the opposite side of the phosphor target. |
| US11402616B2 |
Changing system for a microscope
A changing system for a microscope includes multiple afocal enlargement changing modules of different enlargement levels that are optionally introducible into an infinite beam path running along an optical axis of the microscope. Each of the enlargement changing modules contain a light deflection system. The light deflection systems are designed to adjust the path length of the infinite beam path passing through the respective enlargement changing module in such a way that all of the enlargement changing modules, regardless of the different enlargement levels of the enlargement changing modules, map an exit pupil of a lens of the microscope onto the same location along the optical axis. |
| US11402615B2 |
Camera optical lens including seven lenses of +−−+−+− or +−−+++− refractive powers
The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: an aperture; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. The camera optical lens satisfies following conditions: 11.00≤f2/f1≤−6.00; and 5.00≤d7/d6≤10.00, where f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; d7 denotes an on-axis thickness of the fourth lens; and d6 denotes an on-axis distance from an image side surface of the third lens to an object side surface of the fourth lens. |
| US11402609B2 |
Optical system and imaging apparatus
Provided is an optical system and an imaging apparatus provided with the optical system. The optical system includes: a first lens having negative refractive power; a second lens having negative refractive power; a third lens having positive refractive power; and a fourth lens having positive refractive power, the first lens, the second lens, the third lens, and the fourth lens being disposed in this order from an object side. The optical system satisfies a predetermined condition relating to the focal length of the optical system and the distance on the optical axis between an exit pupil and an imaging plane in the optical system. |
| US11402607B2 |
Observation device, observation method, and observation device control program
Before an observation region of the imaging optical system reaches an observation position in a culture container, a vertical position of the culture container at the observation position is precedently detected by an auto-focus displacement sensor. In a case where an auto-focus control is performed on the basis of the position, an error between the precedently detected vertical position of the container at the observation position and a vertical position of the container at a time point when an observation region of the imaging optical system is scanned up to the observation position is acquired, and an objective lens is moved in an optical axis direction on the basis of the error. |
| US11402605B2 |
Scanning mirror having balancing body, and method for balancing a scanning mirror
A scanning mirror for a laser scanning system includes a central axis, a mirror body, and a mirror surface on a front face of the mirror body. A first recess group is provided and includes a plurality of first recesses formed in the mirror body and arranged on a side of and spaced from the central axis as viewed from a back of the scanning mirror. A balancing mass is accommodated by the first recess group and includes at least one balancing body seated in at least one of the first recesses for balancing the scanning mirror. Each of the first recesses includes at least one radial stop against which the balancing body rests such that the balancing body is held in the first recess at a constant distance from the central axis. A method is also provided for balancing the scanning mirror. |
| US11402600B2 |
Lens unit
A lens unit may include a plurality of lenses; and a lens barrel comprising an inner cylindrical portion in which the plurality of lenses are housed, an outer cylindrical portion separated radially outwardly from the inner cylindrical portion, and a plurality of ribs extending in a radial pattern from an outer circumferential surface of the inner cylindrical portion toward an inner circumferential surface of the outer cylindrical portion. A plurality of axis alignment protrusions protruding radially inwardly may be provided on an inner circumferential surface of the inner cylindrical portion. Each of the plurality of axis alignment protrusions may be formed between adjacent ribs among the plurality of ribs. |
| US11402598B2 |
Lens module
A lens module is provided. In the lens module, a conductive member is provided with a connecting hole at a position facing a recess of a connector, which is fixedly connected to a holding assembly. An end of each holding member included in the holding assembly is soldered to the connecting hole through the recess, and the connecting hole is a through hole circumferentially closed. By setting the connecting hole as a through hole sealed circumferentially, it may be ensured that an end of the holding member that goes through the connecting hole may be provided with solder paste all around. The holding member may be stably soldered to the conductive member, thereby ensuring transmission of electrical signals between the holding member and the conductive member, and further ensuring transmission of electrical signals between an image stabilization device and an auto focusing device. |
| US11402592B2 |
Optical interface assembly and optical module
An optical interface assembly, comprising a lens barrel, a lens disposed in the lens barrel, an optical receptacle, a stub disposed in the optical receptacle, and a diaphragm disposed between the lens and the stub. A diameter of a light passing hole of the diaphragm is smaller than a diameter of a light passing surface of the lens. A first end surface of the stub facing the lens is disposed at an inclined angle relative to an axis of the stub. When a light beam is coupled into the stub by the lens, a portion of a return light reflected from the first end surface is reflected to an outside of the light passing hole of the diaphragm. |
| US11402591B2 |
Optical coupling device
An optical coupling device of an embodiment includes: a first lead frame; a light emitting element provided on the first lead frame; a second lead frame; a light receiving element provided on the second lead frame and facing the light emitting element; a polyimide resin covering a light emitting surface of the light emitting element; a transparent resin portion provided between the light emitting element and the light receiving element; and a light-shielding resin molded body accommodating the light emitting element and the light receiving element. |
| US11402585B2 |
Optical connection structure
An optical connection structure includes a first spatial multiplex transmission line, a second spatial multiplex transmission line, a first lens arrangement, a second lens arrangement and a first beam diameter conversion portion. The first spatial multiplex transmission line has a plurality of first transmission lines. The second spatial multiplex transmission line has a plurality of second transmission lines. The first lens arrangement is optically coupled with the first spatial multiplex transmission line. The second lens arrangement is optically coupled with the second spatial multiplex transmission line. The first beam diameter conversion portion has a first end face and a second end face and arranged between the first spatial multiplex transmission line and the first lens arrangement. The first beam diameter conversion portion is configured such that an optical diameter at the second end face is larger than an optical diameter at the first end face. |
| US11402584B2 |
Optical connector with tilted mirror
A light coupling unit for use in an optical connector includes a waveguide alignment member that receives and aligns at least one optical waveguide. The light coupling unit includes a light redirecting member that has an input surface configured to receive input light from the end face of the optical waveguide. A curved reflective surface of the light redirecting member receives light from the input surface propagating along an input axis and redirects the light such that the redirected light propagates along a different redirected axis. An output surface of the light redirecting member receives the redirected light and transmits the redirected light as output light propagating along an output axis and exiting the light redirecting member. A curved intersection of the curved reflective surface and a first plane formed by the input and redirected axes has a radius of curvature. The curved reflective surface has an axis of revolution disposed in the first plane. The axis of revolution forms a first angle with the redirected axis which is non-zero. The waveguide alignment member is configured such that the end face of the optical waveguide is positioned at a location that is not a geometric focus of the curved reflective surface. |
| US11402580B2 |
Integrated optical devices and methods of forming the same
Integrated optical devices and methods of forming the same are disclosed. A method of forming an integrated optical device includes the following steps. A substrate is provided. The substrate includes, from bottom to top, a first semiconductor layer, an insulating layer and a second semiconductor layer. The second semiconductor layer is patterned to form a waveguide pattern. A surface smoothing treatment is performed to the waveguide pattern until a surface roughness Rz of the waveguide pattern is equal to or less than a desired value. A cladding layer is formed over the waveguide pattern. |
| US11402579B2 |
Techniques for fabricating waveguide facets and die separation
A fabrication method includes arranging a plurality of dice on a substrate and performing a first etching process that etches a first layer of the substrate at a boundary between adjacent dice on the substrate. The etching forms facets of one or more waveguides that are defined within the first layer, and the etching leaves a portion of the first layer in the boundary between the adjacent dice. The method continues with a second etching process that etches the portion of the first layer and a second layer beneath the portion of the first layer, the second etching process forming a trench in the boundary where the second layer has a different material than the first layer. The method also includes separating the dice from one another along the trench. |
| US11402578B2 |
Gratings with variable depths formed using planarization for waveguide displays
A manufacturing system performs a deposition of an etch-compatible film over a substrate. The etch-compatible film includes a first surface and a second surface opposite to the first surface. The manufacturing system performs a partial removal of the etch-compatible film to create a surface profile on the first surface with a plurality of depths relative to the substrate. The manufacturing system performs a deposition of a second material over the profile created in the etch-compatible film. The manufacturing system performs a planarization of the second material to obtain a plurality of etch heights of the second material in accordance with the plurality of depths in the profile created in the etch-compatible film. The manufacturing system performs a lithographic patterning of a photoresist deposited over the planarized second material to obtain the plurality of etch heights and one or more duty cycles in the second material. |
| US11402577B2 |
Analog optic memory and signal processing
A method, system, and computer program product for using photorefractive material for analog optic storage and other applications of optical neuromorphic systems. The method may include coupling electromagnetic radiation into a first optical input and a second optical input, where the first optical input and the second optical input are part of an integrated optical device, the integrated optical device including: a first optical mode coupler connected to a first pair of optical ports including a first optical input and output; a second optical mode coupler connected to a second pair of optical ports including a second optical input and output, and the first optical mode coupler connected to the second optical mode coupler using a pair of arms (including a photorefractive material). The method may also include obtaining an optical interference pattern in the photorefractive material of each arm of the integrated optical device. |
| US11402571B2 |
Weakly-penetrating radiation detection plastic scintillating fiber
A plastic scintillating fiber capable of detecting radiation having a weakly penetrating property is provided. A plastic scintillating fiber according to an aspect of the present invention includes a plastic optical fiber, and further includes a core containing at least one type of a fluorescent agent, a cladding layer having a refractive index lower than that of the core disposed at a center, and an outermost layer covering an outer peripheral surface of the cladding layer. The outermost layer contains a base material that generates scintillation light, and at least one type of a fluorescent agent that converts the scintillation light into light having a wavelength longer than that of the scintillation light. |
| US11402569B2 |
Optical sheet for light guide plate type liquid crystal display, backlight unit for light guide plate type liquid crystal display, and light guide plate type liquid crystal display
The present invention provides an optical sheet for a light guide plate type liquid crystal display, including a low refractive index layer having an extremely low refractive index. The optical sheet A12 for a light guide plate type liquid crystal display (1000) according to the present invention includes a first optical film (light guide plate) (1010), a low refractive index layer (20), and a second optical film (reflection plate) (1020) laminated in this order, and the low refractive index layer (20) has a refractive index of 1.25 or less. |
| US11402566B2 |
Side-edge type surface light emitting apparatus having multiple gradually-sloped peak-shaped prisms
In a side-edge type surface light emitting apparatus including a light guide plate having a light emitting surface and a light distribution controlling surface opposing each other, and a light incident surface and a counter light incident surface opposing each other on sides of the light emitting surface and the light distribution controlling surface; a light source disposed on the light incident surface; and a prism sheet having multiple peak-shaped prisms protruded toward the light emitting surface and in parallel with the light incident surface, each of the peak-shaped prisms has a definite apical shape and a definite apical height, and the peak-shaped prisms have a definite pitch. The peak-shaped prisms have sloped angles gradually changed from the light incident surface to the counter light incident surface. |
| US11402563B2 |
Optical device
With a simple configuration, an optical device which realizes uniform light distribution and adequate display quality is provided. An optical device includes: a light guiding layer; a first optically functional layer provided on at least one of a first principal face and a second principal face of the light guiding layer; and a ray control structure, at an end of the light guiding layer on a light-incident side, being provided on a surface of the first optically functional layer that is on an opposite side to the light guiding layer. The ray control structure reduces light which is incident from an edge of the light guiding layer to the first optically functional layer at an angle smaller than a critical angle. |
| US11402557B2 |
Solar control coating with enhanced solar control performance
A solar control coating (30) includes a first phase adjustment layer (40); a first metal functional layer (46); a second phase adjustment layer (50); a second metal functional layer (58); a third phase adjustment layer (62); a third metal functional layer (70); a fourth phase adjustment layer (86); and optionally, a protective layer (92). At least one of the metal functional layers (46, 58, 70) includes a metal functional multi-film layer including (i) at least one infrared reflective film and (ii) at least one absorptive film. |
| US11402556B2 |
Wafer level method for manufacturing integrated infrared (IR) emitter elements having an optical IR filter placed on the main surface region of the carrier substrate on which the IR emitter is formed
A method for manufacturing integrated IR (IR=infrared) emitter elements having an optical filter comprises back side etching through a carrier substrate, forming adhesive spacer elements on a conductive layer on the carrier substrate, placing a filter substrate having a filter carrier substrate and a filter layer on the adhesive spacer elements, fixing the adhesive spacer elements to the carrier substrate and the filter substrate by curing, pre-dicing through the filter substrate for exposing the contact pads of the structured conductive layer, and dicing through the frame structure in the carrier substrate for separating the integrated IR emitter elements having the optical filter. |
| US11402554B2 |
Index grating of optical encoder
An index grating of an optical encoder provided by the invention has a main technical feature of increasing a ratio of light-transmissible area of a grating per unit area, thereby increasing a light source utilization efficiency and a signal intensity, and reducing light-blocking ratio caused by dust and other foreign matters, thereby reducing a degree of influence on light intensity, so as to improve a sensing precision of the optical encoder. |
| US11402553B2 |
Galvanometer mirror and laser machine
A galvanometer mirror according to the present invention comprises: a transparent substrate; a laser beam reflection layer arranged on one surface side of the substrate and causing reflection of a laser beam having a predetermined wavelength; and a machining point beam reflection layer arranged on the other surface side of the substrate and having higher reflectivity for a beam having a wavelength except the predetermined wavelength than the laser beam reflection layer. |
| US11402551B2 |
Optical lens for a photodiode-equipped device
The invention relates to an optical lens (10) for a photodiode-equipped device, which is arrangeable at and/or in the photodiode-equipped device in such a way that light beams (14) emitted by at least two photodiodes of the photodiode-equipped device transmit into the optical lens (10) through a light entrance side (S1) of the optical lens (10) and emerge from the optical lens (10) at a light exit side (S2) of the optical lens (10), and for which a central longitudinal axis (16) extending centrally through the light entrance side (S1) and centrally through the light exit side (S2) is definable, wherein the light entrance side (S1) of the optical lens (10) and the light exit side (S2) of the optical lens (10) are embodied in each case as a freeform surface for off-axis projection in such a way that the light beams (14) emitted by the photodiodes (32) arranged on a circular path around the central longitudinal axis (16) are focused off-axis by means of the optical lens (10). |
| US11402550B2 |
Flexible polarizing cover plate having hard coating with ink-filled grooves and preparation method thereof
Disclosed herein is a flexible polarizing cover plate including laminated polarizers and a hard coating. The hard coating includes a viewable area and a black matrix area surrounding the viewable area. The black matrix area includes a plurality of grooves surrounding the viewable area and ink filled and cured in the plurality of grooves. A preparation method of a flexible polarizing cover plate, a display panel and a display device including the flexible polarizing cover plate are also provided. |
| US11402548B2 |
Method of strengthening an optical element
According to various aspects and embodiments, a system and method for providing an optical element is disclosed. In one example, the optical element includes a substrate formed from a Nanocomposite Optical Ceramic (NCOC) material that includes a first oxide nanograin material dispersed in a second oxide nanograin material, and a compressive layer of the NCOC material formed on a surface of the substrate. |
| US11402547B2 |
Methods of forming particulate films and films and devices made therefrom
A method of depositing a film comprising a monolayer of particles. The method includes providing a dispersion comprising particles and at least two liquids and depositing drops of the dispersion onto a substrate and evaporating the at least two liquids resulting in a film of a monolayer of the particles. One embodiment of the method includes a coating on the outer surface of particles such that the coating makes the particles substantially non-dispersible, substantially non-soluble and substantially non-suspendable in one of the liquids. A particulate film containing at least one layer of particles, wherein the at least one layer is substantially made of particles of a chemical composition and has uniform thickness. Optical devices containing a particulate film containing at least one layer of particles, wherein the at least one layer is substantially made of particles of a chemical composition and has uniform thickness. |
| US11402546B2 |
Structurally-colored articles and methods for making and using structurally-colored articles
One or more aspects of the present disclosure are directed to bladders that incorporate a multi-layer optical film that impart a structural color to the bladder. The present disclosure is also directed to articles including the bladders having a multi-layer optical film, and methods for making articles and bladders having a multi-layer optical film. |
| US11402545B2 |
Structurally-colored articles and methods for making and using structurally-colored articles
One or more aspects of the present disclosure are directed to bladders that incorporate a multi-layer optical film that impart a structural color to the bladder. The present disclosure is also directed to articles including the bladders having a multi-layer optical film, and methods for making articles and bladders having a multi-layer optical film. |
| US11402538B2 |
Gravity gradient measurement method and apparatus
Provided is a gravity gradient measurement apparatus and measuring method, wherein a turntable rotates horizontally around an earth-vertical axis, a vacuum layer is arranged on the turntable defining a first chamber, a first three-axis accelerometer and a second three-axis accelerometer are located in the first chamber, the first three-axis accelerometer and the second three-axis accelerometer are arranged symmetrically on an x axis with respect to an origin of coordinates. Both the first three-axis accelerometer and the second three-axis accelerometer have a distance of R from the origin of coordinates. The first three-axis accelerometer and the second three-axis accelerometer are arranged symmetrically on an z axis with respect to the origin of coordinates, and the first three-axis accelerometer and the second three-axis accelerometer are spaced at a distance of h on the z axis. The measurement module uses measurements of the accelerometers to determine gravity gradients on the coordinate axes. |
| US11402537B2 |
Systems and methods for pulsed neutron logging in a subterranean wellbore
Methods and associated systems are disclosed for performing a logging operation within a subterranean wellbore extending within a subterranean reservoir. In an embodiment, the method includes (a) emitting neutrons into the subterranean wellbore or the subterranean reservoir, and (b) detecting gamma rays emitted from atoms disposed within the subterranean wellbore or the subterranean reservoir. In addition, the method includes (c) determining a first gamma ray count within a first energy window of the gamma rays detected at (b), and (d) determining a second gamma ray count within a second energy window of the gamma rays detected at (b). The second energy window is different than the first energy window. Further, the method includes (e) calculating a ratio of the first gamma ray count to the second gamma ray count. |
| US11402534B2 |
Metal detector
A panel (31) for assembly into a sensing head for a metal detector comprising: a. a first layer (34) for supporting at least one sensing coil (33), b. a second layer (35) for providing electromagnetic shielding, and c. a moisture resistant barrier layer (36). |
| US11402531B2 |
Method of packaging and deploying marine vibrator
Methods are provided to package and deploy a marine vibrator for use in connection with marine seismic surveys. Marine vibrators are provided with a number of buoyancy configurations with corresponding techniques for controlling the submergence depth of the marine vibrators. An exemplary marine vibrator comprises a positively buoyant hydrodynamic tow body, comprising: a low frequency electro-acoustic projector; a power electronics system; a control-monitoring electronics system; and a pressure compensation system, wherein the hydrodynamic tow body comprises one or more active control surfaces to adjust a submergence depth and a roll attitude of the hydrodynamic tow body. Additional embodiments employ a free-flooding, load-bearing frame with positive or negative buoyancy. |
| US11402528B2 |
Wavefield propagator for tilted orthorhombic media
Systems and methods that include receiving reservoir data of a hydrocarbon reservoir, receive an indication related to selection of a wavefield propagator, application of the wavefield propagator utilizing Fourier Finite Transforms and Finite Differences to model a wavefield associated with a Tilted Orthorhombic media representative of a region of a subsurface comprising the hydrocarbon reservoir, and processing the reservoir data in conjunction the wavefield propagator to generate an output for use with seismic exploration above a region of a subsurface comprising the hydrocarbon reservoir and containing structural or stratigraphic features conducive to a presence, migration, or accumulation of hydrocarbons. |
| US11402523B2 |
Scintillating detectors for quality assurance of a therapy photon beam
The present disclosure relates to scintillating detector systems for radiation therapy beams. In one implementation, a detector system for evaluating radiation delivered by a radiation beam output from a beam generator may include a phantom enclosing an internal volume and having an outer surface, extending around the internal volume, for exposure to radiation, and an inner surface coated, at least in part, with a scintillating material and facing the internal volume. The system may further include a camera external to the enclosed volume and configured to view at least a portion of the inner surface, through an opening of the hollow phantom, when radiated by the radiation beam. The system may further include at least one processor configured to receive images from the camera and calculate, based on the received images, a spatial dose distribution produced by the radiation delivered by the radiation beam to the hollow phantom. |
| US11402522B2 |
Image sensor
Disclosed herein is a method, comprising: exposing an image sensor to a scene; measuring, as analog signals, intensities of light from the scene by a plurality of pixels of the image sensor; converting the analog signals to digital signals; and determining a total intensity of light of the scene by calculating a sum of the digital signals. |
| US11402519B2 |
Semiconductor radiation detector
Disclosed herein is a radiation detector comprising: an electronics layer comprising a first set of electric contacts and a second set of electric contacts; a radiation absorption layer configured to absorb radiation; a first set of electrodes and a second set of electrodes, wherein the first set of electrodes and the second set of electrodes are interdigitated and extend into the radiation absorption layer in a direction of thickness thereof; wherein the electronics layer and the radiation absorption layer are bonded such that the first set of electrodes are electrically connected to the first set of electric contacts and the second set of electrodes are electrically connected to the second set of electric contacts. |
| US11402517B2 |
Radiation detector, radiation inspecting device, and method for processing radiation detection signal
Provided is a detector capable of appropriately and highly accurately detecting radiation even under an environment where a wide range of radiation is irradiated.The radiation detector is configured in such a manner that a plurality of light receiving devices are arranged in each cell of a scintillator that is divided into a plurality of cells, photoelectric conversion of scintillation light emitted by each individual cell is dividedly performed by the plurality of light receiving devices to reduce a charge amount of an output signal of each light receiving device, and the output signals are input into an integrated circuit to generate a radiation detection signal of each cell. |
| US11402510B2 |
Systems and methods for wide-angle LiDAR using non-uniform magnification optics
Methods and systems for wide-angle LiDAR are provided that utilize magnification optics that provide non-uniform resolution in different areas of a Field of View (FoV). |
| US11402508B2 |
Distance-measuring system and distance-measuring method
A distance-measuring system includes: a plurality of light sources; a light source controller that controls the plurality of light sources; an imager that generates a distance image for each reflection light emitted by the plurality of light sources and reflected by a subject; a reliability level output unit that outputs a reliability level for each distance image; and an image compositor that composites a plurality of distance images. The emission areas of the plurality of light sources which emit light at different angles relative to an optical axis of the imager have a common emission area to which light is emitted in common, and the image compositor exclusively selects pixels to be composited from the plurality of distance images for an outside of the common emission area, and determines pixels to be composited based on the reliability level for the common emission area to generate a composite distance image. |
| US11402505B2 |
Control of phase in steering of LIDAR output signals
The chip includes multiple steering waveguides positioned on a base. Each of the steering waveguides is being configured to carry an output signal. The steering waveguides each terminate at a facet. The facets are arranged such that output signals exit the chip through the facets and combine to form a LIDAR output signal. The chip also includes phase tuners positioned on at least a portion of the steering waveguides. Electronics operate the phase tuners so as to tune a phase differential between the output signals on adjacent steering waveguides. The electronics tune the phase differential so as to tune the direction that the LIDAR output signal travels away from the chip. |
| US11402504B2 |
3-D imaging and/or flow estimation with a row-column addressed 2-D transducer array
An ultrasound imaging system (100) includes a 2-D transducer array (102) with a first 1-D array (104, 204) of one or more rows of transducing elements (106, 2041, . . . 2046) configured to produce first ultrasound data and a second 1-D array (104, 206) of one or more columns of transducing elements (106, 2061, . . . 2066) configured to produce second ultrasound data. The first and second 1-D arrays are configured for row-column addressing. The ultrasound imaging system further includes a controller (112) configured to control transmission and reception of the first and second 1-D arrays, and a beamformer (114) configured to beamform the received first and second echoes to produce ultrasound data, and an image processor (116) configured to process the ultrasound data to generate an image, which is displayed via a display (224). |
| US11402503B2 |
Two-dimensional ultrasound imaging transducer array with a non-rectangular active sensing region
An ultrasound imaging system (102) includes a transducer array (108) with a two-dimensional array of rows (110) of transducer elements (114). The transducer elements of each row extend along a long axis (116). The rows are parallel to each other. The transducer array includes a non-rectangular set of active transducer elements. The ultrasound imaging system further includes transmit circuitry (118) that actuates the transducer elements to transmit an ultrasound signal. The ultrasound imaging system further includes receive circuitry (120) that receives echoes produced in response to an interaction between the ultrasound signal and a structure and received by the transducer elements. The ultrasound imaging system further includes a beamformer that processes the echoes and generates one or more scan lines indicative of the structure. |
| US11402501B2 |
Radar apparatus, radar system, and radar apparatus control method
A detectable range is increased in a radar apparatus that measures a distance from a round-trip time of a sound wave. A transmitting unit transmits a plurality of sound waves including different frequency components in order. A receiving unit receives reflected waves obtained as the plurality of sound waves is reflected. An analyzing unit analyzes a frequency component of each of the reflected waves and identifies, for each reflected wave, the sound wave corresponding to the reflected wave among the plurality of sound waves on the basis of the analysis result. A ranging unit acquires a distance corresponding to a period of time from a transmission time of the sound wave corresponding to the reflected wave to a reception time of the reflected wave. |
| US11402500B2 |
Sonic wave sensor unit, and recording device
A sonic wave sensor unit includes an element substrate having a transmitting element having a transmission side piezoelectric element and transmitting a sonic wave to a medium, and a receiving element having a reception side piezoelectric element and a reception side vibrating surface and receiving a sonic wave reflected by the medium, a sonic wave sensor including a sealing substrate configured to seal the transmission side piezoelectric element and the reception side piezoelectric element, and a holder disposed on a side opposite to the element substrate with respect to the sealing substrate in a −Z direction and fixed to the sealing substrate, wherein a through hole penetrating the holder in the −Z direction is formed in the holder, and, in plan view viewed in the −Z direction, the reception side vibrating surface is disposed inside a wall surface of the holder constituting the through hole. |
| US11402499B1 |
Processing audio signals for presence detection
This disclosure describes presence-detection devices that detect movement of a person by emitting ultrasonic signals into an environment, and characterizing the change in the frequency, or the Doppler shift, of the reflections of the ultrasonic signals off the person caused by the movement of the person. The techniques include downsampling the audio signals from the carrier frequency range down to a frequency range with a center frequency around 0 Hz. A filter is applied to attenuate signals around 0 Hz and below (or above), such as the emitted signals. In addition to removing the emitted signals, the negative side (or positive side) of the audio signals are removed, but the Doppler shift is still represented in the remaining portion of the audio signals. By removing a portion of the audio signals, the amount of processing required to detect the Doppler shift in the reflections of the ultrasonic signals is reduced. |
| US11402497B2 |
Device for a vehicle
A device for a vehicle, which is attached to a vehicle, in particular, a commercial vehicle, and in which at least one or multiple surroundings sensor(s) is/are attached, a housing wall of the device being made from a material pervious to sensor radiation, and at least one housing wall of the device being made from a material absorbing sensor radiation. |
| US11402494B2 |
Method and apparatus for end-to-end SAR image recognition, and storage medium
Disclosed are a method and an apparatus for end-to-end SAR image recognition, and a storage medium. According to the disclosure, a generative adversarial network is used to enhance data and improve data richness of a SAR image, which is beneficial to subsequent network training; a semantic feature enhancement technology is also introduced to enhance semantic information of a SAR deep feature by a coding-decoding structure, which improves performances of SAR target recognition; and meanwhile, an end-to-end SAR image target recognition model with high integrity for big scenes like the Bay Area is constructed, which is helpful to improve a synthetic aperture radar target recognition model for big scenes like the Bay Area from local optimum to global optimum, increases the stability and generalization ability of the model, reduces the network complexity, and improves the target recognition accuracy. |
| US11402493B2 |
Determining surface characteristics
A method for determining surface characteristics is disclosed. The method may include transmitting a surface penetrating radar (SPR) signal towards a surface from a SPR system. The method may also include receiving a response signal at the SPR system. The response signal may include, at least in part, a reflection of the SPR signal from a surface region associated with the surface. The method may further include measuring at least one of an intensity and a phase of the response signal. The method my additionally include determining, based at least in part on the at least one of the intensity and the phase of the response signal, a surface characteristic of the surface. |
| US11402490B2 |
Automatic setting-up of hygiene equipment
A piece of hygiene equipment configured to dispense a consumable to a user includes a processing circuit and a radio circuit. The radio circuit is configured to receive and transmit a radio signal carrying payload data, and the processing circuit is configured to obtain information on a positional relationship to another device by instructing the radio circuit to receive and/or transmit a radio signal carrying first payload data. The processing circuit is configured to generate second payload data on the basis of the obtained information on the obtained positional relationship, and to instruct the radio circuit to transmit a radio signal carrying said second payload data. |
| US11402489B2 |
Passive multi-person location tracking utilizing signal polarization
Embodiments are directed to passive multi-person location tracking utilizing signal polarization. An embodiment of a system includes multiple receivers, including a first receiver at a first location and a second receiver at a second location, each receiver including one or more receiver antennas to receive polarized radio signals; a transmitter located at a third location to transmit polarized radio signals, the transmitter including antennas for a first signal at a first polarization direction and a second signal at a second, different polarization direction; and a processing system to receive channel state information from each receiver, and to track a plurality of individuals utilizing the received channel state information, wherein the tracking of the plurality of individuals is based at least in part on analysis of a polarization parameter and a set of location parameters generated for each of multiple reflection paths based on the channel state information. |
| US11402486B2 |
Method for the recognition of objects
A method includes identifying, from a reflected radar signal, a plurality of single detections corresponding to object surface spots detected by the radar sensor system, wherein the positions of the single detections in a Range-Doppler-map are deter-mined, wherein at least a region of the Range-Doppler map is divided into a plurality of adjacent evaluation regions separated by separation lines, wherein the separation lines extend parallel to one of the range axis and the Doppler axis. For each evaluation region, at least one selected detection is determined which has, among the detections present in the respective evaluation region, an extremal value with respect to the other axis of the range axis and the Doppler axis, and a boundary of the at least one object is determined based on the selected detections. |
| US11402485B2 |
Ultra-wideband intelligent sensing system and method
A system and method is disclosed where an operating state may be determined by selecting one or more transmitting nodes for transmitting one or more radio-frequency (RF) signals. One or more receiving nodes may receive the one or more RF signals that may include one or more channel state data. The operating state may be determined based on one or more features extracted from the one or more channel state data. Another system and method is disclosed where a range compensation value may be determined by transmitting a radio-frequency (RF) signal from at least one transmitting node. The one or more receiving nodes may receive the RF signal and a channel state data may be estimated using the signal. The range compensation value may be determined using the channel state data and a position value indicating a location of the at least one transmitting node. |
| US11402484B2 |
Object detection device, in-vehicle radar system, monitoring radar system, object detection method of object detection device, and program
An object detection device including a receiver, wherein the receiver has: a reception unit that receives an RF reception signal that is a reflection of an RF transmission signal reflected from at least one target; an IF signal generation unit that generates an IF signal; a position detection unit that detects a position of the target based on an amplitude in a spectrum computed from the IF signal; a displacement detection unit that detects a displacement of the target based on a phase in a one-dimensional spectrum at the position; a speed detection unit that detects a speed of the target based on a plurality of the IF signals; and a target determination unit that identifies a type of the target by using detection results and detection results, or detection results from the displacement detection unit, environmental information defined at each position, and detection results. |
| US11402482B2 |
Vehicle radar apparatus and control method thereof
The vehicle radar apparatus may include a transmitting array antenna configured to radiate radar signals for forward detection, N receiving array antennas configured to receive the radar signals reflected from a target after being radiated from the transmitting array antenna, and a control unit configured to estimate an azimuth of the target by using non-offset receiving array antennas among the N receiving array antennas and estimate an elevation of the target by using a phase difference between an offset receiving array antenna and the non-offset receiving array antenna among the N receiving array antennas and the azimuth of the target. |
| US11402481B2 |
Systems for detecting objects in environments
A system for detecting objects in an environment, comprising a measuring system and a processing unit in signal communication with the measuring system, wherein: the measuring system comprises macro-components formed of respective subcomponents, wherein the macro-components comprise: a waveform generator configured to provide an electrical signal to be transmitted with a predetermined waveform, transmitting and receiving means configured to transmit a first electromagnetic signal matching the electrical signal to be transmitted and to receive from the environment a second electromagnetic signal generated by a reflection of the first electromagnetic signal, thereby providing a received signal matching the second electromagnetic signal, an analog conditioning circuit configured to provide a baseband electrical signal by baseband converting the received signal, and an analog-to-digital converter configured to provide a digital signal which is a discrete sequence of values obtained by sampling the baseband electrical signal in plural time instants. |
| US11402476B2 |
Method and apparatus for LIDAR channel encoding
A light detection and ranging system modulates laser light pulses with a channel signature to encode transmitted pulses with channel information. The modulated laser light pulses may be scanned into a field of view. Received reflections not modulated with the same channel signature are rejected. Multiple light pulses of different wavelengths may be similarly or differently modulated. |
| US11402473B1 |
Photonic integrated circuit illuminator
Methods and systems for providing illumination for depth sensing are provided. In one example, an apparatus comprises an illuminator, an optical sensor, and a controller. The illuminator comprises a photonic integrated circuit (PIC) and a diffractive optical element (DOE). The PIC including a laser source and at least one waveguide including optical turning features. The at least one waveguide propagates light transmitted by the laser source along a first axis parallel to a top surface of the PIC. The optical turning features diverts the light to form collimated light beams to exit the at least one waveguide and the top surface along a second axis. The DOE can diffract and project the collimated light beams. The optical sensor can detect the collimated light beams reflected off an object. The controller can determine a depth of the object with respect to the apparatus based on the detection. |
| US11402472B2 |
Polarization sensitive LiDAR system
A light detection and ranging (LiDAR) system includes light emitters that emit beams of light of substantially equal intensities. The light emitters form a beam polarization pattern with beams having varying polarizations. The LiDAR system also will include a receiver to receive light reflected from the object. An analyzer will determine characteristic differences between the beam polarization pattern of the beams emitted toward the object and an intensity pattern of the light reflected from the object, determine a reflection position that is associated with the light reflected from the object, and use the determined characteristic differences to determine whether the reflection position is a position of the object or a position of a ghost. |
| US11402468B2 |
Systems and methods for blind online calibration of radar systems on a vehicle
Systems, methods, and non-transitory computer-readable media provide a blind online calibration mechanism to calibrate the position of the radar unit while the self-driving vehicle is in motion without the use of any map data. Specifically, a calibration system associated with the self-driving vehicle is configured to adjust the boresight angle of the radar within a calibration range and monitor the convergence or divergence pattern of the resulting clutter locations. The boresight angle of the radar unit may be progressively adjusted in static or dynamic degree increments until the convergence of the clutter curves is observed. In this way, without using any map data or factory settings, radar calibration can be conducted as often as needed while the vehicle is moving. Radar sensing and measurement accuracy is thus improved. |
| US11402467B2 |
Methods and computer devices for determining angular offset of radar system
Methods and computer devices for determining an angular offset of a radar system having been mounted on a vehicle having a forward direction of travel along a surface. The angular offset is an angle between the scanning direction and the forward direction. The method includes receiving radar data from the radar system. The method includes determining projections of an immobile object velocity in the scanning direction and a direction perpendicular to the scanning direction. The method also includes determining the angular offset of the radar system based on at least one of the projections of the immobile object velocity. |
| US11402466B2 |
Motor vehicle with a radar sensor and method for operating the motor vehicle
A motor vehicle having at least one radar sensor, which is mounted behind a radome, formed by a component of the motor vehicle to be radiated through, and/or having a radome, wherein the motor vehicle further includes a reference structure having at least one radar-detectable marker, which can be controlled by an adjusting apparatus and moved into a measuring position in the detection area of a radar sensor outside the radome, and a control apparatus configured to control the adjusting apparatus, based on a trigger signal, for moving the reference structure into the measuring position and to evaluate radar data recorded by the radar sensor describing the reference structure in the measuring setting through a comparison with a comparison data set stored in the control apparatus and recorded without deposition on the radome for detection of the potential deposition. The trigger signal indicates a potential deposition, which restricts the performance of the radar sensor, on the radome. |
| US11402464B2 |
Radar leakage measurement update
A method and electronic device for updating a leakage response for leakage cancelation. The electronic device includes a radar transceiver, a memory, and a processor. The processor is configured to determine whether an object is within proximity of and within a field of view of the radar transceiver, obtain a leakage measurement for the radar transceiver in response to determining that no object is proximate to and within the field of view of the radar transceiver, and update the leakage response for leakage cancelation based on the leakage measurement. |
| US11402463B2 |
Radar sensor system and method for operating a radar sensor system
A radar sensor system having a defined number of HF components, each HF component having at least one antenna for transmitting and/or receiving radar waves and at least one antenna control for operating the at least one antenna, and a synchronization network to which all HF components are functionally connected and via which an HF signal is able to be provided to all HF components. At least two HF components have a respective self-supply device for feeding back a defined share of power of the HF signal able to be fed into the synchronization network. The HF signal for all HF components being able to be generated by a defined HF component at a defined instant, the radar sensor system being able to be functionally subdivided into at least two sub-sensor systems. |
| US11402462B2 |
Intelligent sensor and intelligent feedback-based dynamic control of a parameter of a field of regard to which the sensor is directed
An embodiment of a radar subsystem includes at least one antenna and a control circuit. The at least one antenna is configured to radiate at least one first transmit beam and to form at least one first receive beam. And the control circuit is configured to steer the at least one first transmit beam and the at least one first receive beam over a first field of regard during a first time period, and to steer the at least one first transmit beam and the at least one first receive beam over a second field of regard during a second time period. |
| US11402461B2 |
Sound source position estimation device and wearable device
[Object] To make it possible to estimate the position of a sound source resulting from a wearing displacement, even in the case where the wearing displacement occurs in a wearable device.[Solution] A sound source position estimation device according to the present disclosure includes: a spectrum acquisition unit configured to acquire a frequency spectrum of a sound source on the basis of a sound obtained by a plurality of microphones provided for a ring-like wearable device; a distance computing unit configured to compute respective distances from the plurality of microphones to the sound source on the basis of the frequency spectrum; and a sound source position computing unit configured to, approximating the ring-like wearable device to a circle and assuming that the sound source is located on a cylindrical surface including the ring-like wearable device, obtain an intersection between the cylindrical surface and spherical surfaces whose radii are the respective distances to compute a position of the sound source. |
| US11402460B2 |
Method and system for processing a signal transmitted to a motor vehicle by a remote communicating entity
The invention relates to a method for processing, by a computer system (100) installed on board a motor vehicle, a signal transmitted by a remote communicating entity and received by means of a radiofrequency signal communication apparatus arranged inside the vehicle, and to a system implementing such a method and to a motor vehicle comprising such a system. The aim of the invention is to determine the plausibility of a radiofrequency signal transmitted by a remote communicating entity, in particular a signal that contains data relative to a followed course and/or a geographical position of the vehicle. |
| US11402459B2 |
Distributed radio signal targeting device
Apparatuses and methods are disclosed that allow for the detection, identification and direction finding of search and rescue beacons in a variety of environments. The techniques may be used to identify a line of bearing (LOB) to 121.5 MHz rescue beacons found in aircraft (ELTs), marine beacons (EPIRBs), and personal locator beacons (PLBs). Multiple lines of bearing may be used to geo-locate a target emitter if so desired. The methods may utilize, for example, a handheld device that is designed for search and rescue activity. Additionally, this device may be able to decode a 406 MHz frequency beacon that communicates with the satellite system that is controlled by COSPAS SARSAT. This constellation of rescue satellites coordinates the location of 406 MHz rescue beacons. |
| US11402455B2 |
System and method for sensing spin
A magnetic field causing a difference of energy level between different spin states in the sample can be applied, a spin transition in the material can be triggered by exposing the sample to electromagnetic radiation of an energy level corresponding to the difference in energy level between the different spin states, a sensing surface of a superconducting element can be exposed to a magnetic field of the spins in the sample, the spin transition can cause, via kinetic inductance, a change in electromagnetic waves carried by the superconducting element which can be detected. A magnetic field component normal to the sensing surface, below a certain magnetic field threshold, can be applied to favor sensitivity. |
| US11402452B2 |
System and methods for dynamic covariance estimation of a multivariate signal
A system and methods of capturing rapid changes in complex systems by examining the interaction of the various components within the system. A multivariate signal is decomposed into a dictionary of elements and a corresponding sparse mixing matrix Each dictionary element may provide a rank-1 estimation of a disjoint partition of time points of the signal that may permit estimation of the covariance of each partition using an outer-product of the corresponding dictionary element. |
| US11402449B2 |
Magnetic resonance imaging systems and methods
A method is provided for magnetic resonance (MR) imaging near metal, including acquiring an image at a first magnetic field from a subject that includes a metal object, acquiring an image at a second magnetic field, and combining the images to provide a corrected image with reduced metal distortion. An MR imaging system for measuring near metal is also provided including a superconducting magnet to provide a magnetic field, a power supply for a current to ramp the magnetic field, a cryocooler in contact with the superconducting magnet, a magnetic field controller programmed to ramp the main magnetic field by adjusting the current generated by the power supply, a radio frequency system for transmitting and receiving signals, and a data acquisition and processing system to receive the MR signals, generate image data sets and combine the image data sets to provide a corrected image having a reduced metal distortion. |
| US11402447B2 |
Conforming posterior radio frequency (RF) coil array for a magnetic resonance imaging (MRI) system
Various methods and systems are provided for a flexible, lightweight, low-cost radio frequency (RF) coil array of a magnetic resonance imaging (MRI) system. In one example, a posterior RF coil assembly for a MRI system includes an RF coil array including a plurality of RF coils and a deformable material housing the plurality of RF coils, each RF coil comprising a loop portion of distributed capacitance wire conductors and a coupling electronics unit coupled to each of the plurality of RF coils. |
| US11402446B2 |
Single screen fabrication of symmetric multilayer magnetic resonance imaging (MRI) receive coils
Methods for forming flexible magnetic resonance imaging (MRI) receive coil devices having at least one receive coil with at least one capacitor are provided and include providing a flexible substrate having a first surface and a second surface opposite the first surface, forming a first conductor pattern on the first surface by printing a first layer of conductive material on the first surface using a printing mask having a pattern, and forming a second conductor pattern on the second surface by printing a second layer of conductive material on the second surface using the same printing mask or identical printing mask, wherein a portion of the first conductor pattern on the first surface overlaps with a portion of the second conductor pattern on the second surface with the flexible substrate therebetween to form the at least one capacitor element. |
| US11402445B2 |
Electron intrinsic spin analyzer
An electron intrinsic spin analyzer measures the quantum states from a free-electron beam wherein the intrinsic-spin property of the electron's beam interacted with an inhomogeneous magnetic field. The generated beam from a hot tungsten wire paralleled after the initial deflecting and absorbing process by metal grids, and the paralleled beam travels without electrical or magnetic focusing through on a glass lamp. A graphite cover on both sides of the glass lamp and a gitter composed of cesium dioxide and barium absorbed other types of particles such as ions and atoms to do not hit the fluorescent plate. The free-electron beam interacted with independent assemblies of magnets on the moveable chassis, which produced from a homogeneous or inhomogeneous magnetic field and used for checking the rightness of the measured physics effects. The optically and electrically detections collected the data with a Langmuir probe and a charge-coupled device camera. |
| US11402444B2 |
Arrangement allowing the performance of both magnetic particle imaging and magnetic resonance imaging and a device comprising this arrangement
An arrangement that enables performing of both magnetic particle imaging and magnetic resonance imaging and a device including the arrangement are provided. The arrangement that enables performance of both magnetic particle imaging and magnetic resonance imaging includes: at least one primary magnetic element pair configured to generate a selection magnetic field (SMF1/SMF2) for magnetic particle imaging, at least one secondary magnetic element pair configured to generate a driving magnetic field, and at least one tertiary magnetic element pair configured to generate a focus magnetic field (FMF). |
| US11402442B2 |
Magnetic validation
An apparatus for validating magnets on site, including a standard reference magnet for providing a governing reference, a reference magnet for providing a reference based on the governing reference, a gauss meter, a hall probe, and a scanner. The reference magnet is arranged to be taken on site for further magnetic validation and includes guide members to target a nominated magnetic field density. |
| US11402440B2 |
Methods and apparatus for trimming a magnetic field sensor
Method and apparatus for trimming a magnetic field sensor having a first magnetic field sensing element. The trimming includes the use of a curve for normalized sensitivity of the first magnetic field sensing element derived from a first curve corresponding to current through a coil in a first direction at a first time. This produces a field affecting the first magnetic field sensing element versus an external field. The trimming further includes a second curve corresponding to current through the coil in a second direction opposite to the first direction at a second time to produce a field affecting the first magnetic field sensing element versus an external field. |
| US11402438B2 |
Intelligent on-line diagnosis and positioning method for winding deformation of power transformers
Disclosed is an intelligent on-line diagnosis method for winding deformation of power transformer. When a transformer is subjected to short-circuit shock or transportation collision, transformer windings may undergo local twisting, swelling or the like under the action of an electric power or mechanical force, which is called winding deformation and will cause a huge hidden danger to the safe operation of the power network. Commonly used diagnosis methods for winding deformation are all off-line diagnosis methods, which have the disadvantages that transformers need to be shut down and highly skilled operators are required. The present invention provide an intelligent on-line diagnosis method for winding deformation on the basis of combination of information entropy and support vector machine. By carrying out feature extraction of current and voltage signals based on permutation entropy and wavelet entropy, integrating the variation of the monitoring indicators of the power transformers in complexity, time-frequency domain and the like and automatically learning the diagnostic logic from fault features through the machine learning algorithm, intelligent diagnosis of winding deformation is realized, thereby reducing labor costs and improving diagnosis efficiency. |
| US11402434B2 |
Battery state estimation method, apparatus, device, battery system and storage medium
The present application provides a battery state estimation method, which relates to the field of battery technology. The battery state estimation method includes: obtaining a first cell state parameter of each of a plurality of cells in a battery; under a condition that there are multiple cell partitions, determining whether the first cell state parameter of each cell belonging to a cell partition is within a first cell state parameter range corresponding to the cell partition; when it is within the first cell state parameter range corresponding to the cell partition, estimating a cell state of each of the cell partitions based on a target cell state parameter corresponding to the cell partition; and estimating a battery state of the battery based on the cell state. |
| US11402432B2 |
Scan test control decoder with storage elements for use within integrated circuit (IC) devices having limited test interface
An integrated circuit (IC) includes logic components and a scan test circuit coupled to the logic components. The IC also includes a scan input pin coupled to the scan test circuit. The IC also includes a scan input/output pin coupled to the scan test circuit. The scan test circuit includes a decoder coupled to at least one of the scan input pin and the scan input/output pin. The decoder includes storage elements configured to store different scan control signals and to output at least one of the different scan control signals in response to a master control signal. |
| US11402431B2 |
Detection circuit and detection method
A detection circuit is configured to detect phase information between two clock signals of different frequencies, and the two clock signals include a low frequency clock signal and a high frequency clock signal. The detection circuit includes: a signal generation module, configured to detect the low frequency clock signal at an edge of the high frequency clock signal to generate a to-be-sampled signal, and generate a target sampling signal when the high frequency clock signal is kept at a preset level and the low frequency clock signal meets a preset condition; and a sampling module, connected with the signal generation module and configured to detect the to-be-sampled signal at an edge of the target sampling signal to generate a detection result signal. |
| US11402428B2 |
High-performance probe card in high-frequency
A probe card for a test equipment of electronic devices includes a flexible membrane configured to carry high frequency signals between a device under test and a support plate. The flexible membrane is connected to the support plate through a peripheral zone, and a damping structure is arranged between the support plate and the flexible membrane. A plurality of micro contact probes include a body extending between a first end and a second end, and the second end is configured to abut onto contact pads of the device under test, and the damping structure and the first ends of the micro contact probes are in contact with opposite faces of a same contact zone of the flexible membrane. The flexible membrane includes at least one weakening zone arranged between the contact zone and the peripheral zone. |
| US11402426B2 |
Inductive testing probe apparatus for testing semiconductor die and related systems and methods
A testing probe apparatus for testing die. The testing probe may include a probe interface and a carrier for supporting at least one die comprising 3D interconnect (3DI) structures. The probe interface may be positionable on a first side of the at least one die and include a voltage source and at least one first inductor operably coupled to the voltage source. A voltage sensor and at least one second inductor coupled to the voltage sensor may be disposed on a second opposing side of the at least one die. The voltage source of the probe interface may be configured to inductively cause a voltage within the 3DI structures of the at least one die via the at least one first inductor. The voltage sensor may be configured to sense a voltage within the at least one 3DI structure via the at least one second inductor. Related systems and methods are also disclosed. |
| US11402421B2 |
Detecting wireless signal leakage
Systems, apparatuses, and methods are described for operating and maintaining a data network, and for detecting problems such as signal leakage. In one implementation, a computing device may determine, based on availability and location, one or more mobile devices and may cause the mobile devices to detect a wireless signal. The detected wireless signal may be identified as having leaked from a network, such as a wired network, and used to detect the source of leaks. |
| US11402415B2 |
Method and system for providing energy audits
A method and system for providing energy audits including installation, verification and inspection of energy consuming components and energy producing components. An energy audit is conducted offline on an energy audit application on a network device for energy consuming components (e.g., lighting, heating, ventilation, air condition, etc.) and energy producing components (e.g., solar, wind, water, etc.) and automatically synchronized to a server network device when the network device is able to connect to a communications network and go on-line. Energy audit templates are provided to ensure all energy consuming components and energy producing components are fully defined and consistently identified on an electronic floorplan for a commercial or industrial building. |
| US11402401B2 |
Method and system for scanning of a transparent plate during earth observation imaging
An imaging system includes a body, a stage coupled to the body, and a focal plane array including one or more detectors and coupled to the stage. The imaging system also includes a lens assembly including an objective lens and a rear lens group. The lens assembly is coupled to the body and optically coupled to the focal plane. The imaging system further includes a transparent plate coupled to the body and optically coupled to the objective lens and the focal plane array. The transparent plate is disposed between the objective lens and the focal plane array. Additionally, the imaging system includes an actuator coupled to the transparent plate and configured to rotate the transparent plate relative to an optical axis of the imaging system. |
| US11402400B2 |
Partition liquid into samples
A system for partitioning a liquid sample, the system including: an ejection device, the ejection device including an array of nozzles, wherein adjacent nozzles are separated by a constant distance in a first axis; and a microfluidics device including: a plurality of intake ports to receive a deposited droplet, wherein pairs of intake ports are separated by the same constant distance in the same first axis such that adjacent nozzles can simultaneously eject droplets to different intake ports. |
| US11402398B2 |
Sample injector
A sample injector is configured to determine an amount of movement of a piston for injecting a sample into an analyzer based on a preset amount of the sample to be injected into the analyzer and information of a first identification code about an internal volume read by an optical sensor. |
| US11402394B2 |
Antibodies to TTR and methods of use
The disclosure pertains to antibodies and binding fragments thereof that specifically binds all or part of EHAEVVFTA. Also provided are isolated peptides, isolated nucleic acids, immunogens, compositions, immunoassays and kits and method of using said reagents to detect misfolded TTR. |
| US11402392B2 |
Methods of treating based on site-specific tau phosphorylation
The present disclosure provides methods to quantify tau phosphorylation at specific amino acid residues to predict time to onset of mild cognitive impairment due to Alzheimer's disease, stage Alzheimer's disease, guide treatment decisions, select subjects for clinical trials, and evaluate the clinical efficacy of certain therapeutic interventions. |
| US11402385B2 |
Mass spectrometry for determining if a mutated variant of a target protein is present in a sample
A method of mass spectrometry determines if a mutated variant of a target protein is present in a sample. The method includes subjecting the sample to fragmentation so as to cause the target protein to fragment to form second generation fragment ions, and then mass analysing these fragment ions to obtain spectral data. The method determines if a mutated variant is present in the sample by determining that an ion in the spectral data has a mass to charge ratio that differs from the mass to charge ratio of an ion that would be observed if the target protein was a normal unmutated version of the target protein, and by an amount that corresponds to a mass difference that would be caused by the target protein being a mutated variant of the target protein. |
| US11402381B2 |
Methods of identifying an individual to be treated by chemotherapy based on cytokeratin-19 fragments (CYFRA 21-1) and carcinoembryonic antigen (CEA) marker molecules and related uses
The present disclosure relates to a method of identifying an individual having non-small cell lung carcinoma as to be treated by chemotherapy based on marker molecules cytokeratin-19 fragments (CYFRA 21-1) and carcinoembryonic antigen (CEA) as well as the use of the marker molecules for the identification of an individual to be treated by chemotherapy. |
| US11402375B2 |
Magnetic immunosensor with trench configuration and method of use
The present invention provides apparatus and methods for the rapid determination of analytes in liquid samples by immunoassays incorporating magnetic capture of beads on a sensor capable of being used in the point-of-care diagnostic field. |
| US11402365B2 |
Dry-deposit trace explosives dispensing devices and testing systems
Various embodiments of the present invention are directed towards a system and method to dispense an explosive compound onto a substrate. An example device includes a solvent having the explosive compound dissolved in the solvent to form a sample. A delivery mechanism dispenses the sample in a dispersed manner to sufficiently vaporize the solvent to prevent wicking while dispersing a residue of the explosive compound on the substrate to enable detection by explosive detection tools. |
| US11402360B2 |
Monitoring method, monitoring device, and monitoring system for monitoring a state of a chromatography apparatus
A non-transitory computer readable medium (CRM) storing computer readable program code for monitoring a state of a chromatography apparatus embodied therein that: receives one or more monitoring conditions that each include a determination condition for parameters related to measurements taken using the chromatography apparatus; and displays, in parallel and using a combination operational expression: a first conditional expression based on at least one of the monitoring conditions that make up a first combined conditional expression, wherein the first combined conditional expression is based on a first combined monitoring condition that combines all of the received monitoring conditions, and a second conditional expression based on at least one of the monitoring conditions associated with the first conditional expression. |
| US11402359B2 |
Method for operating a fractionation collector during chromatography
The present invention describes a method of operating a fractionation collector in chromatography, and a chromatograph system for carrying out the method, wherein a solvent composition is pumped into a chromatography column, which contains at least a portion of a first solvent that is liquid under normal conditions and contains a portion of a second solvent that is gaseous at normal conditions, and the composition flowing out of the chromatography column is at least partially introduced into a detector, wherein a composition containing the first solvent, after leaving the chromatography column, is introduced into a collection vessel of the fraction collector in dependence of the detector signal, and the amount of liquid that is introduced into a collecting vessel of the fraction collector is selected in dependence of the portion of said first solvent. |
| US11402356B2 |
Object identification system and method
A system and method for authentication of objects, which includes directing a laser beam onto a surface of an object to induce a thermoelastic excitation in bulk material of the object without altering the surface of the object, wherein the laser beam is pulsed. A surface ultrasonic wave at the surface of the object caused by the thermoelastic excitation is detected using a detector. A detection signal is generated using the detected surface ultrasonic wave. Digital data is generated using the detection signal. Authenticity of the object is determined by comparing the digital data and reference data stored in a database. |
| US11402353B2 |
Imaging beam adjustments on a non-destructive inspection sensor situated on a robotic effector to accommodate in situ conditions
A non-destructive inspection apparatus includes a robotic device, an end effector coupled to the robotic device, and a controller coupled to the robotic device and the end effector. The controller is configured to determine, based on an amount of linear actuator extension of a sensor of the end effector and an amount of rotation of the sensor about a first axis of rotation and a second axis of rotation, a displacement of the sensor relative to a center point of the end effector surface so as to determine location information of the sensor, wherein sensor data for a location on a surface of a test article is sensed and correlated with the determined location information of the sensor. The robotic device controls movement of the end effector and is configured to determine, during the movement of the end effector, positional information for the center point of the end effector surface. |
| US11402346B2 |
Electrical conductivity detector and method of determining phase adjustment value of background subtraction signal
An electrical conductivity detector includes a cell through which a liquid flows, a measurement part for obtaining an electrical conductivity signal which is a current corresponding to an electrical conductivity of the liquid flowing through the cell, a phase adjustment value holder that holds a phase adjustment value which is a predetermined shift amount between a phase of the electrical conductivity signal and a phase of a measurement voltage applied to the cell by the measurement part, a BG subtraction signal generator configured to generate a BG subtraction signal for removing a background component included in the electrical conductivity signal obtained by the measurement part, the BG subtraction signal being adjusted to have a phase substantially identical to the phase of the electrical conductivity signal using the phase adjustment value held in the phase adjustment value holder, an addition part configured to add the electrical conductivity signal and the BG subtraction signal with each other, and a calculation part configured to calculate the electrical conductivity of the liquid flowing through the cell using a signal output from the addition part. |
| US11402343B2 |
X-ray fluorescence spectrometer
An X-ray fluorescence spectrometer of the present invention includes a counting time calculation unit (13) configured to: by a predetermined quantitative calculation method, determine each of quantitative values by using reference intensities of one standard sample and repeatedly perform a procedure of determining each of the quantitative values in a case where only a measured intensity of one of measurement lines is changed by a predetermined value, to calculate a ratio of a change in each of the quantitative values to the predetermined value as a quantitative-value-to-intensity change ratio, the one of the measurement lines having the measured intensity to be changed being different on each repetition of the procedure; and use quantitative-value-to-intensity change ratios calculated thereby for all the measurement lines to calculate a counting time for each of the measurement lines from a quantification precision specified for each of the quantitative values. |
| US11402342B2 |
System and method for high-resolution high contrast x-ray ghost diffraction
A system for high-resolution high-contrast x-ray ghost diffraction comprises: A) a laboratory x-ray source configured to provide an input beam; B) a diffuser configured to induce intensity fluctuations in the input beam; C) a beam splitter configured to split the input beam into: i) a test arm comprising an object and a single-pixel detector; and ii) a reference arm comprising one of: (a) a multi-pixel detector and (b) a single-pixel detector and an aperture or a scanning slit configured to simulate a one or two dimensional multi-pixel detector; and D) a processor configured to receive output intensity measurements of the detectors in the test arm and the reference arm, to record the output intensity measurements at different rotational positions of the rotating diffuser, to correlate the output intensity measurements, and to use the correlated output measurements to reconstruct a diffraction pattern of the object; wherein the object is placed as close as possible to the beam splitter and the detectors in the test arm and the reference arm are equidistant from the beam splitter. |
| US11402336B1 |
Reflected energy detection system and method for detecting oily residue in two-phase immersion cooling systems
A system for detecting residue in a two-phase immersion cooling system based on changes in the intensity of energy reflected off a reflective surface. An energy source is positioned at an incident angle relative to a reflective surface and an intensity sensor is positioned at a target reflected energy angle relative to the reflective surface, wherein the intensity sensor detects light or other energy reflected off the reflective surface. If residues are deposited on the reflective surface, the reflectivity of the residue will change the reflected energy angle or otherwise change the amount of energy reflected toward the sensor. A heating element may generate more heat than existing components such that the system detects the presence of residues with sufficient time to allow less expensive and less intensive corrective measures. |
| US11402334B2 |
Photonic integrated circuit with encapsulated reference arm
A photonic integrated circuit for an interferometric sensor includes a first waveguide called sensitive arm wherein a first portion of the light radiation is propagated, the sensitive arm being exposed to a first ambient medium and to at least one compound to be detected inducing a modification of the local refractive index perceived by the evanescent part of the electromagnetic field of the first portion of the light radiation, and a second waveguide called reference arm wherein a second portion of the light radiation is propagated, an encapsulation layer encapsulating the reference arm, the encapsulation layer being impermeable to the compound or compounds to be detected, so that the reference arm is exposed only to a second ambient medium, substantially of the same nature as the first ambient medium and without the compound to be detected and interferometric sensor comprising a photonic integrated circuit according to the invention. |
| US11402332B2 |
Surface enhanced luminescence sensor nano finger
A surface enhanced luminescence (SEL) sensor may include a substrate and nano fingers extending from the substrate. In one implementation, the nano fingers may be arranged in a cluster of at least three nano fingers extending from the substrate. The nano fingers of the cluster having different geometries so as to bend into a closed state such that each of the nano fingers of the cluster are linked to one another. |
| US11402329B2 |
Method for identifying pledged property
The invention relates to a method for identifying pledged property, comprising the steps of: providing an apparatus, comprising: a guide tube in a substantially erect position, comprising an inlet and an outlet; and means for analysing the dynamic luminescence behaviour of a luminescent substance; wherein the means for analysing the dynamic luminescence behaviour of the luminescent substance are disposed so as to analyse the dynamic luminescence behaviour of the luminescent substance in the guide tube, even if said luminescent substance is in motion; introducing a pledged property containing the luminescent substance into the guide tube through the inlet; analysing the dynamic luminescence behaviour of the luminescent substance contained in the pledged property using the means for analysing the dynamic luminescence behaviour of the luminescent substance; and classifying the pledged property according to the result of the analysis. |
| US11402325B2 |
Method for identifying authenticity and origin of Panax quinquefolius based on terahertz spectroscopy
Provided is a method for identifying authenticity and origin of Panax quinquefolius based on terahertz spectroscopy. The time domain spectral information of the Panax quinquefolius sample is obtained, and converted into the frequency domain spectral information by Fourier transform to calculate a terahertz absorption spectrum. The identification is performed by observing whether there are characteristic absorption peaks of pseudoginsenoside F11 in the terahertz absorption spectrum. |
| US11402321B2 |
High-sensitive biosensor chip using high extinction coefficient marker and dielectric substrate, measurement system, and measurement method
The present chip relates to a high-sensitive biosensor chip using a high extinction coefficient marker and a dielectric substrate, a measurement system, and a measurement method and, more specifically, to an ellipsometry-based high-sensitive biosensor technology or a measurement method using same, the technology amplifying an elliptically polarized signal by a marker having a high extinction coefficient and a dielectric substrate. The marker and the substrate used in the present chip measure a Brewster's angle shift or an elliptical polarization measurement angle with respect to an ultra-low concentration biological material (e.g. antibody or DNA). |
| US11402317B2 |
Subsampling flow cytometric event data
Disclosed herein include systems, devices, computer readable media, and methods for subsampling flow cytometric event data. First and second flow cytometric event data can be transformed into a lower-dimensional space, associated with a plurality of bins, and assigned to a first bin and a second bin. Subsampled flow cytometric event data comprising the first flow cytometric event data can be generated. The subsampled flow cytometric event data can comprise the second flow cytometric event data if the first bin and the second bin are different. The subsampled flow cytometric event data may not comprise the second flow cytometric event data if the first bin and the second bin are identical. |
| US11402313B2 |
Foreign substance detection device and foreign substance detection method
A foreign substance detection device includes a flow path unit through which a fluid is flown; an optical system configured to flatten a laser light from a laser source to be lengthened in a direction intersecting with a flow direction of the fluid; a laser light irradiation unit provided such that an optical path intersects with the flow direction and configured to irradiate the laser light into the flow path unit; a light detection unit which is provided on the optical path having passed through the flow path unit and includes light receiving elements arranged in a lengthwise direction of a transversal cross section of the optical path; a foreign substance detection unit configured to compare a signal level corresponding to intensity of light received by each light receiving element with a threshold value and configured to detect the foreign substance based on a comparison result. |
| US11402309B1 |
Testing equipment of dynamic penetration plate anchor for hypergravity centrifuges
A testing equipment of dynamic penetration plate anchor for a hypergravity centrifuge includes five parts: a test model box, a magnetic induction positioning system, an anchor release device, a loading and measuring device and a dynamic penetration plate anchor. A test foundation is disposed in the test model box, the top part of the test model box along a lengthwise direction is provided with a slide rail of model box, the anchor release device and the loading and measuring device are installed on the slide rail of model box, and the magnetic induction positioning system is installed on the anchor plate of the dynamic penetration plate anchor and the test model box. It can solve the problem that movement information of the anchor body is difficult to obtain due to opaque soil, and can accurately and effectively carry out tests of dynamic penetration plate anchors of hypergravity centrifuges. |
| US11402308B2 |
Freezable fluid cell for cryo-electron microscopy
A system and method for imaging a biological sample using a freezable fluid cell system is disclosed. The freezable fluid cell comprises a top chip, a bottom chip, and a spacer to control the thickness of a vitrified biological sample. The spacer is positioned between the top chip and the bottom chip to define a channel that is in fluid communication with an inlet port and an exit port to the freezable fluid cell system. The channel can be filled with a biological sample, vitrified, and imaged to produce high-resolution electron microscopic image. |
| US11402307B2 |
Method for concentrating analytes
A method for concentrating at least one analyte including the following steps: preparing a first phase including at least one analyte; depositing a drop of the first phase on a substrate; depositing on the drop of first phase a drop of a second liquid phase including at least one surfactant, the second phase being non-miscible with the first phase; evaporating the drop of the second phase; and evaporating the drop of the first phase. Also relates to a method for detecting at least one analyte using the concentration method; and a system using the detection method. |
| US11402300B2 |
Blade structure testing equipment and method for testing blade specimen by using same
The present invention provides blade structure testing equipment comprising: a mounting jig to which one end of a blade specimen is mounted; a grip member to which the other end of the blade specimen is coupled; and a wire (W) having one end attached to the grip member to apply a tensile force to the blade specimen in a direction at a certain angle with respect to the ground. Also, the present invention provides a method for testing a blade specimen, the method comprising: a first step of coupling one end of the blade specimen to a mounting jig and the other end of the blade specimen to a grip member; a second step of determining the values of a centrifugal force, a flap moment, and a lag moment that are to be applied to the blade specimen; a third step of determining the magnitude and direction of a tensile force to be applied to the blade specimen, on the basis of the values determined in the second step; and a fourth step of attaching one end of a wire to the grip member and applying a tensile force to the blade specimen by means of the wire at the magnitude and in the direction of the tensile force determined in the third step. |
| US11402296B2 |
Optical fiber characteristics measurement apparatus and optical fiber characteristics measurement method
An optical fiber characteristic measurement apparatus (1) includes: a light source (11) configured to output a laser beam of which frequency is modulated; an incident part (12, 13, 14, and 15) configured to make the laser beam output from the light source be incident from one end and another end of an optical fiber (FUT) as continuous light (L1) and pulsed light (L2), respectively; a light detector (16) configured to detect light projected from the optical fiber and output a detection signal (D1); and a detector (17 and 18a) configured to detect, in a first period (T1) in which scattering light based on the continuous light and the pulsed light is projected from the optical fiber and a second period (T2) shorter than the first period, in which the scattering light is not projected from the optical fiber, the scattering light based on integrated values acquired by integrating the detection signal for a predetermined time. |
| US11402295B2 |
Optical fiber loss measurement device and optical fiber loss measurement method
An optical fiber loss measurement device includes a unit configured to input pump light at a first frequency in a predetermined mode to a measurement target optical fiber in which a plurality of modes propagate from a first end, and input probe light at a second frequency to which a Brillouin frequency shift is applied to a second end, a Brillouin gain acquisition unit configured to measure an intensity of light output from the first end to acquire Brillouin gains in a longitudinal direction of the measurement target optical fiber using a BOTDA method, and a unit configured to measure a loss in the predetermined mode of the measurement target optical fiber, and the probe light is in a mode in which an electric field distribution in a cross section of the measurement target optical fiber is axisymmetric. |
| US11402293B2 |
Electrostatic self-powered displacement grid sensor
The present disclosure provides an electrostatic self-powered displacement grid sensor used for measuring the displacement of a component to be measured. The device structure includes a sliding chute and a sliding sheet, wherein the sliding chute is fixed to a fixed end, and the bottom of the inner side of the sliding chute is provided with a sensing array; the sliding sheet is fixedly connected with the component to be measured, and the lower end of the sliding plate is in contact with the bottom of the inner side of the sliding chute. When the sliding sheet slides over the sensing array; a corresponding electrical signal is produced, and the number of segments and the distance on sensing units on a single sensing array over which the sliding sheet slides can be obtained according to numbers and output current of sensing units in the sensing array indicated by the signal, and therefore the structural displacement is obtained. Compared with other displacement measurement devices, a segmented displacement meter has the advantages of simple structure, wide application range, high measurement precision and no additional power supply; moreover, the present disclosure creatively solves the problem of unstable results of calibrating displacement according to electrical signals. |
| US11402290B2 |
Leakage inspection device, leakage inspection method, and storage medium
A leakage inspection device according to an aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: determine a measurement time; measure vibration waveforms for the measurement time by using at least two sensors set to a pipe; calculate a cross-correlation function of the measured vibration waveforms; detect peaks of the cross-correlation function at least twice in the measurement time; and determine that leakage occurs in a case where the peaks are repeatedly detected in the measurement time. |
| US11402288B2 |
Membrane-based sensor having a plurality of spacers extending from a cap layer
A membrane-based sensor in one embodiment includes a membrane layer including an upper surface and a lower surface, a backside trench defined on one side by the lower surface, a central cavity defined on a first side by the upper surface, a cap layer positioned above the central cavity, and a first spacer extending from the upper surface to the cap layer and integrally formed with the cap layer, the first spacer defining a second side of the central cavity and an inner membrane portion of the membrane layer. |
| US11402287B2 |
Mechanical formwork pressure sensor for in-situ measurement of fluid pressure during concrete matertal placement and method of using the same
Disclosed is a method and an apparatus for measuring the pressure of fresh concrete and similar liquid materials during placement, in which a movable component is displaced under the pressure of concrete or other liquids and is used as an indicator of the pressure exerted by the concrete or liquid material on the device. Mechanical resistance of the movable component is achieved using a calibrated spring or similar mechanical resistance element. The movable part consists of a pressure plate attached to a scaled cylindrical core, calibrated to provide measurements of the external concrete or liquid pressure. The movable component and mechanical resistance element are installed in a casing with flanges to attach the apparatus to the formwork or vessel. |
| US11402286B2 |
Method and system for detecting health status of a bolt that fastens a rotor blade of a wind turbine
The present invention discloses methods and systems for detecting the health status of a bolt which fastens a rotor blade of a wind turbine. Values of the axial stress/strain of the bolt and motion and orientation data are acquired in different aerial orientations. Values of the prestress/strain and load-stress/strain are obtained using the values of the axial stress/strain and the motion and orientation data. Values of the prestress/strain and load-stress/strain are compared with the reference values. The health status of the bolt, rotor blade, and the wind turbine system is determined based on the comparison results. The method is noninvasive and doesn't affect the function and performance of the bolt and the turbine system. |
| US11402285B2 |
Force sensor and device provided with force sensor
The invention relates to a force sensor 100 that detects a force acting from the outside, and provides the force sensor 100 whose reduction in size and cost can be achieved. The force sensor 100 includes a support member 20, a force receiving member 4 that is displaced with respect to the support member 20 by the action of an external force, an elastic connection member 5 connecting the support member 20 and the force receiving member 4, scales 8a to 8d, which are detection target object bodies, disposed at the elastic connection member 5, displacement detection elements 9a to 9d that are mounted on the sensor substrate 7 composing the support member 20 so as to face the scales 8a to 8d in a one-to-one manner, and that detect movements of the scales 8a to 8d. |
| US11402280B2 |
Magnetic sensor with improved stress compensation accounting for temperature
A magnetic field sensor is provided with improved stress compensation accounting for temperature. The magnetic field sensor includes a stress sensing, element, a temperature sensing element, a magnetic field sensing element, a memory, and an electronic circuitry. The memory is configured to store a first table. The first table identities a plurality of stress-to-sensitivity coefficients. Each of the plurality of stress-to-sensitivity coefficients is mapped to a different temperature value. The electronic circuitry is configured to use a temperature reading and a stress reading to calculate a stress difference between an expected stress and the stress reading. The electronic circuitry is further configured to obtain a stress-to-sensitivity coefficient that corresponds to the temperature reading by using the first table, calculate a gain adjustment coefficient based an the stress-to-sensitivity coefficient, and adjust a gain of a signal that is generated by the magnetic field sensing element based on the grain adjustment coefficient. |
| US11402279B2 |
Continuous calibration of sensors in a remotely monitored cooling system
Systems, methods and apparatus may be applicable to managing and monitoring refrigeration assets, including refrigeration plants and cold-storage facilities comprising large numbers of refrigeration assets. A method of managing refrigeration systems includes receiving measurements captured by a plurality of sensors deployed with a refrigeration asset, the measurements being related to temperatures within a temperature-controlled chamber of the refrigeration asset, identifying a difference between a first temperature measurement obtained from measurements provided by a first sensor and a second temperature measurement obtained from measurements provided by at least one sensor, and calibrating the first sensor based on the difference between the first temperature measurement and the second temperature measurement. |
| US11402277B2 |
Temperature measuring device adopting a plurality of infrared sensors and its method
The invention discloses a temperature measuring device adopting a plurality of infrared sensors and its method. The temperature measuring device consists of a housing, a main control circuit board unit set in the housing, a power supply unit and an infrared sensor set at the head of the housing, wherein the main control circuit board unit is a main control circuit board, and a main control Microcontroller Unit, a signal acquisition circuit, a display screen, a power supply and a control key integrated in the main control circuit board. The method is to calculate and output the accurate target temperature through infrared sensors combined with Microcontroller Unit, at the same time, it can effectively identify such as abnormality of measurement area, abnormality of user measurement method and so as to improve the effectiveness of measurement results. |
| US11402273B2 |
Systems and approaches for improving accuracy of temperature measurements using thermal imaging
A temperature detection system includes a housing, a thermal imaging system at least partially disposed within the housing, and a data correction system communicatively coupled with the thermal imaging system. The thermal imaging system is configured to capture at least one thermal image of a subject. The data correction system is configured to correct at least one error associated with the at least one thermal image of the subject. |
| US11402272B2 |
Absorber structure for thermal detectors
An absorber structure for a thermal detector, the absorber structure including edges defining a basic form, a plurality of first legs of electrically conducting material joined in an electrically conductive manner to form, between the edges of the absorber structure, a grid having openings, the first legs forming at least one continuous connection between the edges of the absorber structure; and a plurality of second legs of electrically conducting material joined in an electrically conductive manner to the first legs, wherein the second legs protrude from the first legs into the openings of the grid and terminate at points of termination located at a distance from adjacent first legs. |
| US11402268B2 |
Method and system for determining internal quality attribute(s) of articles of agricultural produce
An aspect of the invention provides a method for determining at least one internal quality attribute of an article (102) of agricultural produce. The method includes receiving a plurality of first spectroscopic values obtained from directing low band light in a first wavelength associated to a low band of wavelengths from at least one low band light source (104) at least partly through the article (102) toward at least one detector (120); receiving a plurality of second spectroscopic values obtained from directing high band light in a second wavelength associated to a high band of wavelengths from at least one high band light source (106) at least partly through the article (102) toward the at least one detector (120); determining at least one measured spatial profile associated to the article, the at least one measured spatial profile comprising at least one of a plurality of ratios of respective first spectroscopic values to respective second spectroscopic values, a plurality of ratios of respective second spectroscopic values to respective first spectroscopic values; and determining the at least one internal quality attribute at least partly from a comparison of the at least one measured spatial profile with at least one reference spatial profile associated to a class of articles of agricultural produce. |
| US11402267B2 |
Light splitting device and method for manufacturing the same, method for dispersing light, and spectrometer
A light splitting device includes an optical waveguide body and a dispersion grating. The optical waveguide body is configured to transmit incident light to the dispersion grating, the dispersion grating is configured to disperse the incident light transmitted by the optical waveguide body into a plurality of spectral lines, and the optical waveguide body is further configured to change propagation directions of the plurality of spectral lines and to emit the plurality of spectral lines. |
| US11402266B2 |
Method and system for improving counting rate of superconducting nanowire single photon detector
The present disclosure provides a method and system for improving a counting rate of a superconducting nanowire single photon detector. The method includes: coupling an electrical attenuator in series with an output end of the superconducting nanowire single photon detector; the electrical attenuator includes an input end and an output end, and the input end of the electrical attenuator is coupled with the output end of the superconducting nanowire single photon detector. The present disclosure couples the electrical attenuator in series with the output end of the superconducting nanowire single photon detector. Since the configuration of the electrical attenuator is a resistor network, it can act as a series resistor and can also reduce the response pulse amplitude of the superconducting nanowire single photon detector. The present disclosure can improve the counting rate of the superconducting nanowire single photon detector, while keeping the detection efficiency high. |
| US11402265B2 |
Apparatus for integrated offset voltage for photodiode current amplifier
An example apparatus includes: a first voltage source, a first amplifier having a noninverting input adapted to be coupled to a photodiode anode and coupled to the first voltage source, an inverting input adapted to be coupled to a photodiode cathode, and an output, a first resistor coupled to the first amplifier inverting input and to the first amplifier output, a first capacitor coupled to the inverting input of the first amplifier and the first amplifier output, and a second voltage source different from the first voltage source. There is a second amplifier having a noninverting input, an inverting input and an output. The noninverting input is coupled to the output of the first amplifier, the inverting input is coupled to the second voltage source, and there is a second resistor coupled to the inverting input and the output of the second amplifier. |
| US11402262B2 |
Photoelectric conversion device
A photoelectric conversion device for detecting the spot size of incident light, includes a photoelectric conversion element having a photoelectric conversion substrate with two main surfaces, and first and second sensitivity section sections; and scanners that relatively scan incident light on the main surfaces of the photoelectric conversion element. When a sensitivity region on a main surface of the first sensitivity section is defined as a first sensitivity region and sensitivity regions that appear on a main surface of the second sensitivity sections are defined as second sensitivity regions, the first sensitivity region receives at least part of the light incident on the main surface during scanning, and has a pattern in which, in accordance with enlargement of an irradiation region irradiated with incident light on the main surface, the proportion of the first sensitivity region with respect to the second sensitivity regions in the irradiation region is decreased. |
| US11402261B2 |
Light detection system, discharge probability calculating method, and received light quantity measuring method
To calculate a probability of an optical sensor's irregular discharge, a light detection system includes an optical sensor, an application voltage generating circuit that applies a drive pulse voltage to the optical sensor, a discharge determining portion that detects the optical sensor's discharge, a discharge probability calculating portion that calculates a discharge probability for each of first and second states in which the optical sensor is shielded from light and the drive pulse voltage's width in the second state is different from the first state, a sensitivity parameter storing portion storing the drive pulse voltage's reference pulse width as the optical sensor's sensitivity parameter, and another discharge probability calculating portion that calculates an irregular discharge's probability that occurs without depending on the optical sensor's received light quantity, based on the sensitivity parameter, and the discharge probabilities calculated and the drive pulse voltage's widths in the first and second states. |
| US11402259B2 |
Infrared sensing device
A meniscus lens has a dome shape and has a first surface facing a lens array and a second surface facing an infrared sensing element. The meniscus lens has a central portion and a peripheral portion. The central portion includes a top point that is an intersection between the optical axis of the meniscus lens and the first surface. The peripheral portion includes an end of the first surface of the meniscus lens. With respect to the central portion of the meniscus lens, an aplanatic point of the first surface is located at the focus of the lens array. With respect to the peripheral portion of the meniscus lens, an aplanatic point of the second surface is located at the focus of the lens array. |
| US11402258B2 |
Detecting machine action using a machine action detection system
A method and system to detect a plurality of device activities of a device using a device activity monitoring system has been described. The device monitoring activity system includes a vibration sensor in electronic communication with the device to detect vibration of the device. An interrupt counter in communication with the vibration sensor to measure a count of vibration detected by the vibration sensor within a pre-determined period. A storage unit in electronic communication with the interrupt counter to store the count of vibration. A controller in electronic communication with the vibration sensor and the storage unit to determine a mapping between the measured count and one of the plurality of device activities. A transmitter in electronic communication with the controller to autonomously transmit an output signal when the controller determines the mapped one of the plurality of device activities. |
| US11402255B2 |
Compact weighing apparatus including rough-charge weigher and combination weigher
A weighing apparatus includes a rough-charge weigher and a combination weigher. A plurality of weighing hoppers of the combination weigher are, when seen in a plan view, arranged in a manner to form a line that constitutes a part of a virtual circle. The plurality of weighing hoppers include a one-end weighing hopper disposed at one end of the line, an other-end weighing hopper disposed at the other end of the line, and a plurality of middle weighing hoppers arranged on the line between the one-end weighing hopper and the other-end weighing hopper. The rough-charge weigher is, when seen from the one-end weighing hopper and the other-end weighing hopper, disposed at an opposite side to the middle weighing hoppers, and at least a part of the rough-charge weigher is disposed inside the virtual circle or on the virtual circle. |
| US11402252B2 |
Monitoring remote assets
A server system for remote monitoring includes a wireless communication interface, a processor, and a storage device. The wireless communication interface receives at least one data packet over wireless communications from a remote monitoring system. The processor processes the data packet including sensor information from a sensor coupled to the remote monitoring system. The storage device stores the sensor information. |
| US11402251B2 |
Fuel tank assembly
One embodiment of a fuel tank assembly includes a fuel sending unit having a float with a small thickness, which heretofore has been too thin to secure a stand-alone magnet thereon. The float may be manufactured in a complex shape or in a small size. In one embodiment the float may be manufactured of a material having magnetized particles interspersed throughout the float such that the float does not require a stand alone magnet secured thereon. The float may be manufactured of a material having a foaming agent added thereto so as to provide a finished product with air filled voids positioned throughout the float to increase the buoyancy of the finished float product. |
| US11402243B1 |
Distributed process state and input estimation for heterogeneous active/passive sensor networks
Systems and methods are described for estimating a state of a process and an input to the process using a sensor network. Each sensor node in the sensor network is directly to one or more adjacent sensor nodes and indirectly coupled to the remaining sensor nodes through the one or more adjacent sensor nodes. Each sensor node iteratively calculates a new estimated state based on estimations of the state and the input to the process calculated by the sensor node in a previous iteration. The new estimated state is then adjusted based on a difference between a predicted and actual output of a sensor and is further adjusted based on differences between a previous estimated state calculated by the sensor node and estimated states calculated by adjacent sensor nodes. |
| US11402238B2 |
Capacitive sensing and heating system for steering wheels or seats to sense presence of hand of occupant on steering wheel or occupant in seat
A system including an assembly arranged in at least one of a seat and a steering wheel of a vehicle and a measurement circuit. The assembly includes a sensor and a heater arranged adjacent to the sensor. The measurement circuit is configured to output an excitation signal to the measurement circuit and the assembly and measure a resonant frequency of the measurement circuit and the assembly in response to the excitation signal. The measurement circuit is configured to determine a capacitance value based on the resonant frequency and determine whether a body part is in proximity to the sensor based on the capacitance value. |
| US11402237B2 |
Device, arrangement and method for characterizing the torsion, rotation and/or positioning of a shaft
The invention relates to a device, an arrangement and a method for characterizing the torsion, rotation, and/or positioning of a shaft by generating a periodic magnetic field of a magnetic field generator disposed between at least two magnetic field detectors by applying a periodic exciter signal. The field is modified by the shaft and induces an output signal at each of the magnetic field detectors. The difference with respect to amplitude or phase between the exciter signal and the first output signal is detected as a first measured variable and between the exciter signal and the second output signal is detected as a second measured variable. The total of and/or the difference between the first and the second measured variables is calculated, and the torsion, rotation, and/or positioning of the shaft is characterized based thereon. |
| US11402230B2 |
Navigation system, apparatus and method for generating navigation message
An apparatus for generating a navigation message includes a route generating unit configured to generate a route, and a navigation message generating unit configured to generate a navigation message about the generated route based on the generated route, one or more map information items of the generated route, and an order of priority in which map information items are presented. |
| US11402229B2 |
Enhanced location-based navigation for pedestrians and public transportation users
Systems and methods for providing a navigation system for impaired travelers. The system includes a traveler device having a navigation application stored thereon. The navigation application is configured to receive route information, via the traveler device. The navigation application further identifies a route and a location of a location module along the route. The navigation application further determines a delivery means based on an additional selection, wherein the delivery means includes at least one accommodation associated with the additional selection. The navigation application also generates an accommodation means based on the route and the additional selection, wherein the accommodation means defines a path along the route. Additionally, the navigation application provides the accommodation means for navigation guidance along the path via the delivery means. |
| US11402227B2 |
Dynamic route adjustment
An autonomous vehicle including a vehicle propulsion system, a braking system, a steering system, and a computing system. The computing system includes a processor and memory that stores computer-executable instructions that cause the processor to select a route for a passenger of the autonomous vehicle for a trip to a destination. The route for the passenger is selected from a plurality of potential routes. The route for the passenger is selected based on a preference of the passenger and aggregate ride quality feedback from passengers of autonomous vehicles in a fleet at locations along the potential routes to the destination. The processor is further configured to control at least one of the vehicle propulsion system, the braking system, or the steering system to move the autonomous vehicle along the route as selected for the trip to the destination. |
| US11402226B2 |
System and method for arranging transportation systems for travel
A system determines wind information for achieving a desired outcome for travel of a selected group of one or more vehicles along one or more routes. The system determines wind drag and/or a parasitic energy loss for travel by different potential groups of vehicles based on the wind information. The system determines the wind drag and/or parasitic energy loss for each of plural, different locations along the one or more routes, visually presents the wind drag and/or parasitic energy loss for each of the different groups of vehicles, and/or determines the selected group of the one or more vehicles from the different groups of vehicles for travel along the one or more routes to achieve the desired outcome based on the wind drag and/or parasitic energy loss that is determined. |
| US11402221B2 |
Autonomous navigation system
Some embodiments provide an autonomous navigation system which enables autonomous navigation of a vehicle along one or more portions of a driving route based on monitoring, at the vehicle, various features of the route as the vehicle is manually navigated along the route to develop a characterization of the route. The characterization is progressively updated with repeated manual navigations along the route, and autonomous navigation of the route is enabled when a confidence indicator of the characterization meets a threshold indication. Characterizations can be updated in response to the vehicle encountering changes in the route and can include a set of driving rules associated with the route, where the driving rules are developed based on monitoring the navigation of one or more vehicles of the route. Characterizations can be uploaded to a remote system which processes data to develop and refine route characterizations and provide characterizations to one or more vehicles. |
| US11402213B2 |
Techniques for determining a current location of a mobile device
Various embodiments are directed to techniques for determining a current location of a mobile device. An apparatus includes a SLAM candidate component to identify a first candidate key frame matching a current captured frame by a first degree from an interval-based key frame set with key frames selected on a recurring interval from multiple earlier captured frames captured by mobile device camera of surroundings within a defined area, a CNN candidate component to identify a second candidate key frame matching the current captured frame. |
| US11402206B2 |
Surveying instrument and surveying instrument system
A surveying instrument comprises a distance measuring light projecting module, a light receiving module, an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a wide-angle image pickup module, a projecting direction detecting module configured to detect an optical axis deflection angle and a deflecting direction, a narrow-angle image pickup module, a distance measurement calculating module and an arithmetic control module, wherein the arithmetic control module is configured to control the optical axis deflector and the distance measurement calculating module, wherein the distance measurement calculating module is configured to perform a distance measurement of a measuring point based on a light emission timing of a distance measuring light and a light reception timing of a reflected distance measuring light, and wherein the narrow-angle image pickup module is configured to acquire a narrow-angle image with the distance measuring optical axis as an image center. |
| US11402195B2 |
Height detection apparatus and coating apparatus equipped with the same
A height detection apparatus successively changes the brightness of white light from a first level to a second level in accordance with a position of a Z stage and captures an image of interference light while moving a two-beam interference objective lens relative to a paste film in an optical axis direction, detects, as a focus position, a position of the Z stage where the intensity of interference light is highest in a period during which the brightness of white light is set to the first or second level, for each pixel of the captured image, and obtains the height of the paste film based on a detection result. |
| US11402194B2 |
Safety pipe loop and method for strain monitoring of mountainous pipelines
The present disclosure discloses a safety pipe loop and method for strain monitoring of mountainous pipelines. The safety pipe loop may include a plurality of magnetic test detectors and a protective shell for protecting the plurality of magnetic test detectors. The number of the plurality of magnetic test detectors may be set to 4n, n is an integer number greater than or equal to 1. An angle between any two adjacent detectors of the plurality of magnetic test detectors may be 180°/2n. At least two of the plurality of magnetic test detectors may be connected in parallel through a data transmission line and output data through a data transmission interface. An outer layer of the protective shell may include non-magnetic hard alloy, and an inner layer of the protective shell may include non-metallic materials. |
| US11402193B2 |
Method and system for measuring deflections of structural member at multiple locations using multiple antennae
Multiple deflections of a structural member (SM) can be measured at multiple locations thereof, which deflections can be used to monitor changes in stiffness over time, using at least one antenna to measure the resonant frequencies at different harmonic frequency numbers of a predetermined radio frequency spectrum. One antenna can include a plurality of coils providing a first coil region that has a maximum sensitive to a first resonant frequency harmonic number and another antenna can include a plurality of coils providing a second coil region that has a maximum sensitivity to a second resonant frequency harmonic number that is different from the first predetermined resonant frequency harmonic number. Using different harmonic resonant frequency numbers, deflections at multiple regions of the SM can be determined concurrently using a plurality of antennae. |
| US11402192B2 |
Measuring tape with improved case durability
A measuring tape device may include a housing having an aperture, a reel assembly enclosed within the housing, and a blade having a first end configured to extend from the housing through the aperture and a second end configured to be wound on the reel assembly. The housing may include a first case half and a second case half. The reel assembly may be configured to alternately allow the blade to be withdrawn from the reel assembly through the aperture or received in the aperture onto the reel assembly. The first case half and the second case half may be joined together via threaded fasteners inserted into respective portions of screw bosses formed in corresponding portions of the first and second case halves. Mating features may be provided on the first and second case halves to facilitate joining the first and second case halves. At least some of the mating features may be longer than others of the mating features, or a diameter of the screw bosses is about 1.5 time to about 2.5 times larger than a diameter of the threaded fasteners. |
| US11402191B2 |
Explosive charge deactivation system and method
A perforating gun assembly includes a body having an axial length extending between a first axial end and a second axial end, an outer radial surface extending between the first axial end and the second axial end, and an inner bore and at least one explosive charge extending from the outer radial surface to the inner bore. The at least one explosive charge includes a charge casing and a cavity liner mounted within the charge casing. The charge casing and the cavity liner define a charge cavity there between. The at least one explosive charge further includes an explosive material retained within the charge cavity. The at least one explosive charge further includes a deactivation composition retained within the charge cavity. |
| US11402190B2 |
Detonation system having sealed explosive initiation assembly
A detonation system for a perforating gun assembly. The detonation system includes a tandem sub having a first end and a second opposing end. Each of the first and second ends is connected to a respective perforating gun. The tandem sub has an inner bore, and a switch housing residing within the inner bore. The tandem sub also has an addressable switch residing within the switch housing with the switch being configured to receive instruction signals from a surface by means of an electric line. The addressable switch is in communication with a signal transmission pin and a detonator pin. The detonator pin sends a detonation signal from the addressable switch to a detonator in an adjacent perforating gun. The wiring connections for the pins may be pre-assembled before the perforating guns are delivered to the field. The detonation system utilizes a carrier end plate, wherein the end plate and pins seal off the tandem sub from wellbore fluids and debris following detonation of explosive charges in an associated perforating gun. |
| US11402187B2 |
Polymer projectile having an integrated driving band
A lightweight projectile having an integrated metal band positioned around the exterior of the polymer base of the projectile. The metal band may be a driving band that protrudes from the polymer base to minimize the contact between the polymer base and the rifling to reduce friction between the barrel and the projectile as the projectile is fired. The lightweight projectile may be propelled with less propellant force than conventional projectiles of the same caliber while still retaining the ballistic advantages of a spin stabilized projectile. |
| US11402182B2 |
Fireworks firing device
A pyrotechnics support apparatus includes a base structure with side walls connected to end walls to define an internal cavity. A tab member extends at an angle from each of the end walls across a width of the end walls. The tab members each include a plurality of slots. A plurality of dividers are selectively connectable to the base structure in the slots in the tab members and between the end walls. The support apparatus provides a sturdy foundation for the safe and precise firing of an array of pyrotechnic devices and is specifically configured to increase efficiency and safety. |
| US11402179B2 |
Smart personal safety device
A smart personal safety device includes a chemical irritant that may be dispersed by a user in the event of a threat by an attacker. The smart personal safety device includes an alert signal sent when the user activates the smart personal safety device, sending an alert signal to a mobile device for security alert management by software contained on the mobile device. |
| US11402178B2 |
Ballistic security barrier system
A stand-alone, single-layer, auxiliary ballistic security barrier system configured to be installed over existing doors. The ballistic security barrier system provides protection against an active shooter with weapons, including handguns and high-powered rifles. The ballistic security barrier system includes a frame fixed to a wall with an anchor system and having structural tubing, mounting angle, and a locking system located inside the structural tubing. Further, the system includes a barrier pivotably attached to the frame and made out of material suitable to withstand impact from a high velocity rifle. The barrier is held in a first stowed position by a release apparatus, and in a second closed position by a lock. |
| US11402177B2 |
Composite grid/slat-armor
This invention provides, in some aspects, for devices and methods for protecting a sensitive structure against explosive warhead containing weaponry, whereby a protective apparatus is positioned to be facing an anticipated impact direction at a spacing from said sensitive structure, wherein said apparatus absorbs the impact of said explosive warhead containing weaponry. |
| US11402174B2 |
Small arms stabilization system
A self-stabilizing small arm having a barrel assembly rigidly connected to a stock assembly. The small arm includes at least one shooter interface surface and a stabilization assembly controlling the relative position of the shooter interface surface and the barrel assembly or stock assembly. The stabilization assembly includes (i) at least one movement sensor; (ii) at least one actuator; and (iii) a controller using signals from the movement sensor to operate the actuator in order to compensate for unintended movement of the small arm. |
| US11402168B2 |
Firearm having a detachable stock
A firearm has a receiver with a receptacle. A stock has a projection which is received within the receptacle to mount the stock on the receiver. A spring biased detent holds the stock in engagement with the receptacle. Manual manipulation of the detent allows the stock to be removed from the firearm's receiver. |
| US11402166B2 |
System and method for wirelessly communicating container content levels and storage capacity
The system and method taught herein allow a user to quickly determine how much inventory of a particular type is stored in nearby containers. Rather than inspect each container individually, a user need only scan the area for nearby containers. Each container will respond with its unique identifier and the number of items it contains. |
| US11402163B2 |
Heat dissipation device and fin structure
This disclosure relates to a fin structure including a main body and at least one minor structure. The main body includes a main plate and two side plates. The main plate has at least one through hole. The two side plates are respectively connected to two opposite sides of the main plate and protrude from the main plate. The at least one minor structure protrudes from the main plate and is located at a side of the main plate. The at least one minor structure is spaced apart from the two side plates. The at least one minor structure partially covers the at least one through hole. The at least one minor structure has a length, in a longitudinal direction of the main plate, less than a length of the at least one through hole of the main plate. |
| US11402162B2 |
Distributor and heat exchanger
A distributor and a heat exchanger each include a first plate, a second plate, and a third plate. The first plate is stacked on the second plate in a stacking direction. The second plate is stacked on the third plate in the stacking direction. The first plate has a first through hole. The second plate has a first hollow portion communicating with the first through hole, a plurality of second hollow portions communicating with the first hollow portion, and a plurality of third hollow portions each communicating with one of the plurality of second hollow portions. The third plate has a plurality of second through holes each communicating with one of the plurality of third hollow portions. A first dimension L1 that is the width of the first hollow portion is larger than a second dimension L2 that is the width of each of the plurality of second hollow portions. |
| US11402160B2 |
Heat transfer fins
A heat exchanger includes a fin body and a heat pipe having a first portion disposed on or at least partially within the fin body and a second portion extending from the fin body, wherein the heat pipe includes a hollow core filled with a heat pipe working fluid having a liquid phase that is configured to transition to gas and to be returned to the liquid phase at an operational temperature of the heat exchanger. |
| US11402157B2 |
Lattice boiler evaporator
An evaporator suitable for a thermal dissipation module. The thermal dissipation module includes a tube or pipe and fluid. The evaporator includes a housing, a first heat dissipation structure and a second heat dissipation structure disposed in a sealed chamber of the housing. The chamber is configured to communicate with the pipe, and the fluid is configured to flow in the pipe and the chamber. The first heat dissipation structure and a second heat dissipation structure provide a plurality of fluid flow passages through which the fluid flows and evaporates. A manufacturing method of the evaporator is also disclosed. |
| US11402151B2 |
Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration
The present invention relates to a method and system for producing liquefied natural gas (LNG) from a stream of pressurized natural gas which involves a combination of mechanical refrigeration. |
| US11402148B2 |
Method for rapid encapsulation of a corner gap defined within a corner of a door panel for an appliance
A method of forming an insulated door panel includes folding side flanges of a metallic sheet to define side edges of a structural outer panel that extend from a front panel. A gap is defined between each set of adjacent side edges. Interior blocks are secured to an interior of the structural outer panel proximate each gap to define adhesive cavities. Exterior blocks are positioned at an exterior surface of the structural outer panel at each gap to further define the adhesive cavities. An adhesive is disposed within each adhesive cavity and is contained therein by the interior and exterior blocks. The adhesive is cured to a solid sealing member that adheres the interior blocks to the interior surface of the structural outer panel to form a sealed structural panel. The exterior blocks are removed and each solid sealing member defines a hermetic seal at each gap. |
| US11402141B1 |
Refrigerator and freezer conversion system
The refrigerator and freezer conversion system addresses the problem described above. The refrigerator and freezer conversion system is configured for use with a refrigerator. The refrigerator and freezer conversion system incorporates an insulating cabinet and a refrigeration system. The refrigeration system maintains the temperature within the insulating cabinet. The insulating cabinet is organized into a plurality of chambers. The refrigeration system independently maintains the temperature within each of the plurality of chambers. By independently maintained is meant that the temperature maintained in any initial chamber selected from the plurality of chambers is not affected by the temperature of any subsequent chamber selected from the plurality of chambers. |
| US11402140B2 |
Modular refrigeration system, e.g., for ships
A self-enclosed modular refrigeration unit for refrigeration system comprises compressor adapted to compress a refrigerant. A heat exchanger is connected to a cooling water network to condense the refrigerant with cooling water. A suction line is connected to a suction side of the compressor and adapted to provide a feed of refrigerant to the compressor. A discharge line is connected to a discharge side of the compressor and to the heat exchanger to direct compressed refrigerant to the heat exchanger. A head pressure control valve is in the discharge line downstream of the heat exchanger to control an upstream pressure. A casing encloses the compressor, the heat exchanger, the head pressure control valve. An outlet line has an outlet end downstream of the head pressure control valve adapted to output cooling refrigerant having passed through the head pressure control valve. An inlet end is upstream of the suction line to provide a feed of refrigerant to the compressor. |
| US11402137B2 |
Refrigerant amount management system
A refrigerant amount management system manages an amount of refrigerant with which a plurality of refrigeration cycle apparatuses is filled. Each refrigeration cycle apparatus has a refrigerant circuit. The refrigerant amount management system includes an additional-filling-amount obtaining unit that obtains an additional filling amount of refrigerant with which a refrigeration cycle apparatus has been additionally filled after installation, a storage unit, and a useful-information creation unit. The storage unit stores apparatus information regarding the refrigeration cycle apparatus that has been additionally filled with refrigerant and the additional filling amount of the refrigeration cycle apparatus identified with the apparatus information in association with each other. The useful-information creation unit creates useful information to be used in management of the amount of refrigerant based on the additional filling amount of one of the refrigeration cycle apparatuses and the additional filling amount of another of the refrigeration cycle apparatuses. |
| US11402136B2 |
Drum-type magnetic refrigeration apparatus with multiple bed rings
A magnetic refrigeration apparatus according to the present disclosure includes a magnetic-field source and two or more bed rings. The bed rings can be arranged in pairs with shared cold and hot fluid plenums. A flow of heat transfer fluid may pass at least partially radially through the shared fluid plenum or through a connection between the fluid plenum and one or more flow tubes. The MR apparatus and systems of the present disclosure may further include one or more circumferential flux returns with radial through-hole passageways to accommodate flow tubing. For apparatus configurations with an even number of bed rings, the axial dimension of the passageways may be smaller than the circumferential dimension of the passageways. |
| US11402135B2 |
Fluid supply apparatus
In a first fluid circulation device, a heat exchanger, a tank that stores a first fluid liquefied by the heat exchanger, a first fluid pump that pumps the first fluid stored in the tank, a heater that heats the first fluid pumped from the first fluid pump, and a first fluid supply unit to which the first fluid is supplied from the heater are connected by a first pipe. A second fluid circulation device includes a cooler that cools a second fluid, causes the second fluid having been cooled by the cooler to circulate through a second pipe, and returns the second fluid to the cooler. The second pipe is connected to the heat exchanger and is connected to the tank and the first fluid pump, and the second fluid cools the first fluid in the heat exchanger, the tank, and the first fluid pump. |
| US11402134B2 |
Outdoor unit and control method thereof
An outdoor unit is connected to a refrigerator and has two compressors that are connected in series, and a control method thereof. The outdoor unit according to an embodiment of the present invention includes a low pressure side compressor for compressing a refrigerant; a high pressure side compressor for compressing the refrigerant compressed by the low pressure side compressor; an outdoor heat exchanger for condensing the refrigerant compressed by the high pressure side compressor; a heat recovery unit for cooling the refrigerant condensed in the outdoor heat exchanger by exchanging heat with the refrigerant evaporated in the air conditioner; and a supercooler for expanding a part of the refrigerant cooled in the heat recovery unit to cool another part of the refrigerant cooled in the heat recovery unit, so that the discharge temperature of the low pressure side compressor and/or the high pressure side compressor can be reduced. |
| US11402133B2 |
Gas heat pump system
The present invention relates to a gas heat pump system. A gas heat pump system according to one embodiment of the present invention comprises: a compressor for compressing a refrigerant; a gas engine for driving the compressor; a mixer for mixing air and fuel to generate a mixed gas to be supplied to the gas engine; a mixed gas supply line connected between the mixer and the gas engine; and a supercharger for supercharging the mixed gas supplied to the gas engine through the mixed gas supply line, wherein the supercharger comprises a sealed housing formed by sealing the remaining parts thereof other than an inlet port and an outlet port through which the mixed gas moves into and out of the housing, and a bypass line is provided between the sealed housing and the inlet port of the supercharger so as to resupply a mixed gas in the sealed housing to the inlet port of the supercharger. Therefore, the system can prevent a safety-related accident resulting from the leakage of the mixed gas out of the supplier and can reduce the amount of fuel consumption. |
| US11402130B2 |
Methods and systems for carbon nanofiber production
A system for utilizing solar power to generate carbon nano-materials. A system for utilizing the carbon dioxide byproduct of a fossil fuel power generation process to drive an electrolysis reaction which produces carbon nano-materials, and methods of producing the same. |
| US11402126B1 |
Automated water heater flushing and monitoring system
An automatically flushing water heater maintenance system may be provided, the system including a water heater and a water heater controller. The water heater may include an inlet, an outlet, and a flush outlet having a first control valve in flow communication therewith. The first control valve may be configured to control a flow of water and sediment through the flush outlet out of the water heater. The water heater controller may be configured to communicate with the first control valve by transmitting a first control signal to the first control valve, the first control signal configured to cause the first control valve to open or close as part of an automatic flushing process. As a result of the flushing, the useful life of the water heater may be extended, and/or water heater leakage alleviated. Insurance discounts may be provided based upon using the automatic water heater flushing functionality. |
| US11402122B2 |
Indoor unit of refrigeration apparatus
An indoor unit of a refrigeration apparatus includes: a drain pan that includes four wall surfaces including a first wall surface, and has a quadrangle shape in a plan view; a heat exchanger disposed above the drain pan and through which a combustible refrigerant, having a larger specific gravity than air, flows; a fan that generates air flow to the heat exchanger; a gas sensor that detects a refrigerant leakage; and a casing accommodating the drain pan, the heat exchanger, the fan, and the gas sensor. |
| US11402120B2 |
Air circulator
An air circulator includes a blower unit that is provided with an airflow opening on its front side, and a support unit that supports the blower unit. A grill is provided in the airflow opening. The grill is provided with plural airflow guide blades in a spiral manner. Inner end portions thereof closer to the center of the spiral of the airflow guide blades are protruded from outer end portions thereof in an airflow direction. The blower unit has a cover for forming an outer panel thereof, and the cover has a spherical shape. |
| US11402118B2 |
Air-conditioning system
It is an object of the present disclosure to collectively control an outdoor air handler and an air conditioner optimally.An air-conditioning system (100) includes an outdoor air handler (10) configured to adjust a temperature and a humidity of taken-in outdoor air and supply the air to a target space (SP1, SP2), an air conditioner (20) configured to adjust a temperature of air in the target space (SP1, SP2), and a control unit (30). The control unit (30) is configured to, in a case where one of the outdoor air handler (10) and the air conditioner (20) is in a non-temperature adjusting state in which the temperature of the air is not adjusted, change an air conditioning capacity of the other one of the outdoor air handler (10) and the air conditioner (20) compared with a case where the outdoor air handler (10) and the air conditioner (20) are in a temperature adjusting state in which the temperature of the air is adjusted. |
| US11402114B2 |
Smart air purifier system with first and second air purifiers and method for controlling the same
Disclosed is a method for controlling a smart air purifier, the method including: obtaining first air cleanliness of a first area in which a first air purifier is placed, and obtaining second air cleanliness of a second area in which a second air purifier is placed; when at least one of the first air cleanliness or the second air cleanliness is equal to or smaller than a preset threshold value, driving both the first air purifier and the second air purifier; monitoring a variation of the first air cleanliness and the second air cleanliness; calculating a weight that is proportional to the variation of the first air cleanliness and the second air cleanliness; and setting a driving mode for the first air purifier and the second air purifier based on the weight. |
| US11402113B2 |
Methods and systems for evaluating energy conservation and guest satisfaction in hotels
A method for determining an energy score for a guest room of a hotel having a plurality of guest rooms includes identifying two or more energy saving conditions associated with the guest room under which there is an opportunity to save energy when controlling the guest room without sacrificing guest comfort. The guest room is controlled in a designated energy savings mode when one or more of the energy savings room conditions are detected, and controlling the guest room in a guest comfort mode when none of the energy savings room conditions are detected. An energy score for the guest room is determined based at least in part on a measure of reliability of detecting the two or more energy savings conditions of the guest room, and thus the ability to take advantage of the opportunities to save energy when controlling the guest room. |
| US11402106B2 |
Self-powered water heater
A gas-fired instantaneous water heater including a thermoelectric generator (TEG) and a heat pump that is powered by the TEG to improve efficiency compared to existing water heaters. Water to be heated is circulated through the heat pump, TEG heat exchanger, and primary heat exchanger to produce a stream of heated water. An adjustable firing rate permeable matrix radiant burner is included, in which natural gas and air are combusted to produce combustion products, including heat. The combustion products are condensed in a condensing system to produce cooled and dry exhaust gas. |
| US11402104B2 |
Coil heating element with a heat transfer disk
An electric resistance heating coil assembly includes a spiral wound sheathed heating element having a first coil section and a second coil section. A bimetallic thermostat is connected in series between the first and second coil sections of the spiral wound sheathed heating element. The bimetallic thermostat is spring loaded such that a distal end of the bimetallic thermostat is urged away from a top surface of the spiral wound sheathed heating element. A heat transfer disk is positioned on the bimetallic thermostat at the distal end of the bimetallic thermostat. |
| US11402103B2 |
Appliance user interface with increased control settings
A method for adjusting an appliance heating element power level includes adjusting a heating element to a first power level in response to actuation of a user input to a first level setting and adjusting the heating element from the first power level to a second power level in response to actuation of the user input to a second level setting. The second power level of the heating element is different than the first power level of the heating element, and the second level setting is next to the first level setting within a power level setting sequence. The method also includes adjusting the heating element from the second power level to a third power level in response to actuation of the user input back to the first level setting. The third power level of the heating element is between the first and second power levels of the heating element. |
| US11402102B2 |
User-configurable two-step activation sequence for gas cooktop burner
A cooking appliance and system for a two-step activation for a gas cooktop burner includes at least one control selector having an output representative of a valve position and a touch sensor having an output representative of a permission to operate the valve, with a user-configurable two-step activation sequence used to control a digital gas valve and an ignitor for the gas cooktop burner to ignite and activate the gas cooktop burner. |
| US11402099B2 |
Combustor with improved aerodynamics
A lean burn combustor includes a plurality of lean burn fuel injectors, each including a fuel feed arm and a lean burn fuel injector head with a lean burn fuel injector head tip, wherein the lean burn fuel injector head tip has a lean burn fuel injector head tip diameter, the lean burn fuel injector head including a pilot fuel injector and a main fuel injector, the main fuel injector being arranged coaxially and radially outwards of the pilot fuel injector; and a combustor chamber extending along an axial direction for a length and including a radially inner annular wall, a radially outer annular wall, and a meter panel defining the size and shape of the combustor chamber, wherein the combustor chamber includes primary and secondary combustion zones. A ratio of the combustor chamber length to the lean burn fuel injector head tip diameter is less than 5. |
| US11402093B2 |
Fuel/air mixture and combustion apparatus and associated methods for use in a fuel-fired heating apparatus
A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes. |
| US11402089B2 |
LED growth light
An LED growth light and method for providing light to plants incorporating an LED arrangement, a growth light housing, and a power source. The LED arrangement includes LEDs arranged in individually powered columns to provide relatively uniform disbursement of the light to the plants. The housing includes an accessory rail to attach a variety of optional accessories and internal cooling fins to cool the housing to prevent damage to the power supply and/or to prevent overheating the plants. In addition, the housing includes a fan and end caps which permit the movement of air for the displacement of heat and reduce the intake of moisture or debris into the interior of the LED growth light. |
| US11402088B2 |
Modularized lighting system
A modularized LED lighting system includes combinations of a control module, a power module and at least one LED light module, wherein two adjacent modules are detachably connected with a connection unit. A novel design uses a single power module and a control module for transmitting a power or a power and a control signal to one or a plurality of LED light modules with one or a plurality of connection units detachably and remotely connecting the LED light modules. Alternatively, a control module can be integrated with a power module or can be integrated with an LED light module to become a two-module modularized lighting system. The system installation is simple and the designs are coordinated with advantages such as fast assembly, saving assemble time, saving effort, coping with space constraints, a neat appearance, no wire entanglement, and flexibility of extending lighting range. |
| US11402081B1 |
Adjustable lighting device
A lighting device assembly includes a light source attached to a heat sink member to emit light in a first direction. A support structure supports the heat sink member in a pivotally adjustable orientation about an adjustment axis, to allow adjustment of the first direction. A drive mechanism selectively drives the heat sink member to pivotally adjust the orientation of the heat sink member about the adjustment axis to change the first direction. The drive mechanism includes a drive screw having, a collar threaded to the drive screw to move linearly along the drive screw axis as the drive screw is rotated, and at least one strut to transfer linear movement of the collar to pivotal movement of the heat sink member. |
| US11402079B1 |
Landscape lamps with adjustable light modifiers
The pathway/landscape lamps include an elongated fixture body having an upper end and a lower end; at least one light source mounted to the upper end of the fixture body; a ground engaging post provided at the lower end of the fixture body; and a telescoping shade with a reflective top cover provided over the light source and translucent sides at least partially surrounding the light source. The telescoping shade configured to move from a lowered position allowing light from the light source to be directed downward, to a raised position allowing for light to be emitted both sideways and downward from the light source. A second embodiment of the telescoping shade include at least one vertically adjustable side shade configured to selectively block light to be emitted in a sideway direction. |
| US11402074B1 |
Electrical connector pipe adapted for structural applications
An electrical connector pipe is adapted for structural applications in theater, television and entertainment industries. The connector pipe includes a rigid tubular enclosure defining a hollow continuous internal wireway receiving electrical wiring within an inside diameter of the enclosure, and having a substantially uniform outside diameter between opposite ends of the enclosure. At least one outlet pocket is formed in a side wall of the enclosure. A connector adapter plate is located in the outlet pocket, and extends within the inside diameter of the enclosure. At least one output connector is carried by the connector adapter plate, and resides within the inside diameter of the enclosure with external access provided through the outlet pocket. |
| US11402073B1 |
Universal retrofit and complimentary light assembly
In one aspect, a retrofit and complimentary light assembly for emitting light can be installed in a ceiling with an existing light fixture as a secondary source to provide UVC emitting light for sterilization purposes or alternative visible light for aesthetic purposes. In yet another embodiment, it can be installed as a standalone light system without an existing light fixture into a ceiling with T-bar supports. |
| US11402072B2 |
Electronic safety switch for LED tube
LED lamp assembly comprising a safety switch, a plurality of connector pins arranged at first and second ends of the LED lamp assembly, the connector pins being adapted for electrical connection to a lamp fixture, a plurality of filament simulation circuits, wherein at least one of the connector pins at each of the first and second ends is electrically coupled to a corresponding one of the filament simulation circuits, a plurality of rectifier circuits, one or more LEDs electrically coupled to an output of the rectifier circuits, and a safety switch control circuit operatively coupled to the safety switch. At least one of the connector pins at the first end is electrically coupled via the safety switch to an input of a first one of the rectifier circuits, and at least one of the connector pins at the second end is electrically coupled to an input of a second one of the rectifier circuits. The safety switch control circuit is arranged to close the safety switch when it detects electrical power having a frequency above a predetermined threshold at the connector pins at the first or second ends of the LED lamp assembly. |
| US11402059B2 |
Base having concentric anchor
A base for supporting an object comprising a plurality of legs, a shaft concentrically located relative to the legs, an anchor attached to the shaft, and an attachment point for receiving an object. The anchor can be inserted into a substrate to maintain the stability of the base. |
| US11402057B1 |
Securely mountable/dismountable electronic equipment support stand
A securely mountable/dismountable electronic equipment support stand includes electronic equipment and a support stand. The electronic equipment is provided with a first arc groove. The support stand includes a bottom base, a top base, and a supporting portion. The top base is provided with two first pegs corresponding to the first arc groove. The bottom base is formed with a receiving space corresponding to the supporting portion. The supporting portion has two ends respectively pivoted to and arranged between the bottom base and the top base. An adaptor board is further disposed at one side of the support stand. The collaborative combination between the first arc groove and the two first pegs allow the electronic equipment to be fixed to the top base of the support stand but still allowing the electronic equipment to rotate for adjustment of the electronic equipment on the support stand to orient toward different directions. |
| US11402053B2 |
Vehicle support structure for a worksite
A vehicle support structure, which in petroleum wellsite operations is commonly called a rig mat or a ground stabilizing mat, includes: a main body including an upper surface, an underside, a front end and a rear end, the main body defining a planar structuring with a thickness; a front pad coupled to the main body and positioned adjacent the front end; a rear pad coupled to the main body and positioned adjacent the rear end, the front pad and the rear pad each configured to be moveable between a supporting position protruding from the underside of the main body and a retracted position in plane or retracted from the underside; a front pad drive mechanism for the front pad, the front pad drive mechanism configured to drive the front pad to move between the supporting position and the retracted position and to move the front pad forward and backwards and side to side relative to the main body; and a rear pad drive mechanism for the rear pad, the rear pad drive mechanism configured to drive the rear pad to move between the supporting position and the retracted position and to move the rear pad forward and backwards and side to side relative to the main body, the front pad and the rear pad being configured to operate to support the main body in an elevated position relative to a ground surface and configured to move the main body forward and backwards and side to side relative to the front pad and the rear pad and over the ground surface. In use as a rig mat, a method for well site operations includes: placing the rig mat at a position on a first well site; positioning a rig on the rig mat; and adjusting the position of the rig mat while the rig remains supported on the rig mat such that the rig is centered on a wellhead of the well site. |
| US11402051B2 |
System for installing insulation sleeves on pipelines
Systems and methods include a system for installing insulation sleeves on pipelines. A portable welding robot is configured to weld a plug base longitudinally along a top edge of a pipeline. The plug base supports plugs configured to engage with holes in both overlapping sides of an insulation sleeve configured to insulate the pipeline. A portable pipeline insulation installation fixture is configured to lift the insulation sleeve and install the insulation sleeve around the pipeline including using electric hoists to lift ends of strands beneath and on either side of the pipeline. Each strand is enclosed in an external tube configured to contact and roll along the insulation sleeve and to rotate relative to the strand. The external tubes are configured to wrap the insulation sleeve around the pipeline. |
| US11402047B2 |
Port assembly for permitting material transfer between contained systems
An illustrative port assembly includes a male port assembly including a male frame sub-assembly having first and second hinged male frame members rotatable about a first axis, the first and second hinged male frame members being sealable therebetween. A first transfer sleeve is attachable to the male port assembly and is configured to operably connect the male port assembly with a first volume. A female port assembly includes a female frame sub-assembly having first and second hinged female frame members rotatable about a second axis that is coaxially alignable with the first axis. The first and second hinged female frame members are sealable therebetween, and the female frame sub-assembly is sealable with the male frame sub-assembly. A second transfer sleeve is attachable to the female port assembly and is configured to operably connect the female port assembly with a second volume. |
| US11402046B2 |
Electrical conduit, connection structure for electrical conduit, bell block, method for connecting electrical conduit, method for connecting electrical conduit and bell block, pipe coupling, ring member, double-wall electrical conduit, and connection structure and conduit line for double-wall electrical conduit
A ring member is disposed on a ring member mounting position. The ring member mounting position is a region between a pair of locking walls and is formed in a straight pipe shape. The ring member is in a substantially C shape with an opening at a part of its circumferential direction. The ring member may also be formed in a ring shape being connected at ring member joint parts. The ring member includes a reduced diameter part and first click parts protruding from the reduced diameter part substantially parallel in the pipe axial direction to form a slide guide. The ring member also includes second click parts of which outer diameters expand gradually from the reduced diameter part toward their tip ends. A male fitting part and a female fitting part are fitted with each other using the above ring member to obtain an electrical conduit. A connection structure for the electrical conduits, a bell block, a method for connecting electrical conduits, a method for connecting an electrical conduit and a bell block, a pipe coupling, and a ring member can be obtained thereby. The present invention can also provide a double-wall conduit of which an outer conduit is the electrical conduit having the same structures as the male fitting part and the female fitting part, a connection structure for the double-wall electrical conduits, and a conduit line using the connection structure. |
| US11402045B2 |
Press fitting assembly
A press fitting assembly is provided that includes: a piping component including a receiving device which includes an open end and a shoulder, the open end comprising a continuous stop; a grip ring positioned within the receiving device abutting the continuous stop and comprising a plurality of opposing teeth; a sealing element positioned within the receiving device and abutting the shoulder, wherein the sealing element comprises at least one lobe; and a separator ring positioned within the receiving device between the sealing element and the grip ring, the ring comprises a base portion and an angled portion. Further, the angled portion is angled toward the sealing element and the shoulder. |
| US11402044B2 |
Quick pipe connector
A quick pipe connector includes a connector body, a sealing ring, a compression ring, an engaging member, a fastening cover, and a connector socket. The sealing ring and the compression ring are disposed at fifth and fourth opening portions of the connector body respectively. The fastening cover is disposed at third and second opening portions of the connector body. The fastening cover is biased against a first shouldering surface. The compression ring is disposed at the fourth opening portion and is biased against a second shouldering surface to limit the sealing ring located between a third shouldering surface and the compression ring. A mounting portion of the engaging member is limited between the fastening cover and the compression ring. The connector socket is inserted into the fastening cover that a fifth shouldering surface of the connector socket is engaged with an annular protruding rim of the fastening cover. |
| US11402041B2 |
Gimbal clearances optimization system
An apparatus and method for the manufacture and maintenance of flexible joint gimbal systems. The apparatus and method reduce metal corrugated bellows gimbal joint fatigue damage due to loose fitting parts by implementing a spherical washer to reduce clearance in the flexible joint of the gimbal within desired tolerances. |
| US11402036B2 |
Aircraft cable routing system and method of installation thereof
A cable routing system is disclosed including a routing fixture and an exit fitting. The routing fixture defines a channel for a cable. The channel is engaged by the exit fitting and a cable in the channels exits through an exit channel defined by the exit fitting. The exit channel is directed away from the channel in the routing fixture. The resulting assembly allows low profile cable runs that can conform to a structural surface and in which cables can be broken out easily, without a requirement to cut the cable. A clamp may be provided to further secure the exit fitting to the routing fixture. A method of installation involves installing a cable into a routing channel before installing the exit fitting. The cable routing system can be used in an aircraft, including space constrained areas such as within an aircraft wing. |
| US11402032B1 |
Electro-hydraulic proportional valve
An electro-hydraulic proportional valve includes: a valve core; a valve sleeve, sleeving an outside of the valve core; a valve body, sleeving an outside of the valve sleeve and fixedly connected to the valve sleeve; a left end cap, covering an end of the valve body, a left sensitive cavity being defined by the left end cap, the valve body, and the valve sleeve; a right end cap, covering the other end of the valve body, a right sensitive cavity being defined by the right end cap, the valve body, and the valve sleeve; a driving mechanism disposed out of the valve body; and a transmission mechanism connected to the driving mechanism and the valve core. |
| US11402028B2 |
Combination control and check valve assembly for a wet piping system
A combination control and check valve assembly for a wet piping system includes a control valve in the form of a ball valve and a one-way check valve mounted within the flow pathway of the ball valve. A valve actuation assembly is mounted to the valve assembly to selectively rotate the ball valve between the open and closed positions thereof. The valve actuation assembly is mounted to a first side of the valve assembly and rotationally fixed to the ball, whereby rotation of the valve actuation assembly rotates the ball between the open and closed positions. A side opening is formed in a second side of the valve assembly that is angularly spaced from the first side. The side opening is positioned to align with the fluid flow pathway of the ball valve in the closed position thereof to provide access to the check valve. |
| US11402027B2 |
Fluid pressure control device
A fluid pressure control device includes a neutral passage, a control valve provided in the neutral passage, a first supply passage, and a discharge passage, the control valve has, a switching valve configured to control a flow of a working fluid to the discharge passage from the first actuator in accordance with a pressure in a pilot chamber to which a part of the working fluid supplied from the first supply passage to the first actuator is led, and a throttle portion configured to throttle the flow of the working fluid supplied to the first actuator from the first supply passage, and the pressure on an upstream side of the throttle portion is led to the pilot chamber. |
| US11402026B2 |
Flow centralizer for valve assembly
There is a valve assembly including a flow control valve and a flow centralizer. The flow centralizer has a flowthrough bore. The flow centralizer is downstream of the flow control valve and the flowthrough bore narrows in a direction downstream of the flow control valve. The flow centralizer may have a three-piece design including an insert defining the flowthrough bore and an orifice body and a flange ring which hold the insert in place within the orifice body. |
| US11402025B2 |
Thermostatic valve for a fluid flow circuit, and method for producing such a thermostatic valve
A valve with a sleeve movable along its central axis regulates fluid flow between the orifices of a housing for the valve. The valve has a thermost including heat-sensitive and movable parts, the latter being translatable relative to the heat-sensitive part along the central axis during expansion of a thermodilatable material contained in the heat-sensitive part. The thermostat is kinematically connected to the housing by a stirrup and kinematically connected to the sleeve, such that movements between the heat-sensitive and movable parts regulate the sleeve. In order for the valve to be more compact and safer, the stirrup has an arm extending lengthwise parallel to the central axis and connecting inside the sleeve the heat-sensitive part to an attachment part of the housing, and a fastener at its longitudinal end opposite the thermostat suitable for locking to the attachment part by plastic deformation. |
| US11402024B2 |
Gate valve
A gate valve includes a valve plate and a valve rod that are detachably connected along a rod axis by screwing a connecting screw in a screw hole formed at an end of a valve rod through a screw insertion hole formed in the valve plate. The valve plate includes a contact portion that is in contact with the connecting screw. When the connecting screw is loosened to detach the valve plate from the valve rod, the valve plate is displaced along the rod axis together with the connecting screw via the contact portion to move to a valve-plate detaching position at which the connecting screw comes completely out of the screw hole of the valve rod. Accordingly, the valve plate can be detached from the valve rod easily and reliably even if the valve rod is tightly inserted in the valve plate mounting hole. |
| US11402020B2 |
Piston with multiaxial bearing and piston bowl
The present disclosure provides a piston for an internal combustion engine, the piston having a piston body including a first bearing saddle defining a first axis and a second bearing saddle defining a second axis, the first axis being parallel to and spaced from the second axis. A bearing is also provided, the bearing having a first journal having a first body, longitudinal ends, and lateral edges, the first journal defining a first axis, the first journal disposed about approximately 180 degrees of the first axis and a second journal having a second body and defining a second axis, the second journal disposed about approximately 180 degrees of the second axis, the second journal operable to be positioned abutting one of the lateral edges of the first journal when the first and second journals are positioned with the piston. |
| US11402014B2 |
Electromechanical gear selection device comprising a stepping motor
A method for selecting a gear in the transmission of a power tool having an electric motor. The method includes the following steps of changing an operating device from a first position to a second position in order to select a gear in the transmission; detecting a signal via at least one sensor corresponding to the second position of the operating device; sending the signal to a controller; changing the rotational speed of the electric motor from a first value to a second value via the controller; changing the operating device from the second position to a third position; changing the stepping motor from a first position to a second position corresponding to the third position of the operating device; and changing a shift fork from a first position to a second position in order to change from a first gear to a second gear. |
| US11402006B2 |
Differential device
A differential device is provided with a casing rotatable about an axis, a differential gear set coupled therewith including a pinion gear with a pressure angle (a4) and side gears in mesh therewith, output members respectively mediating torque transmission from the side gears to axles, each of which includes a friction face as a friction clutch for limiting the differential motion, dog teeth, and an oblique face forming an angle (a1) and constituting a cam for operating the friction clutch, a clutch member axially movable for functioning as a clutch to lock the differential motion and including a leg having a side face forming an angle (a2) to function as a cam and movable dog teeth each forming an angle (a3) satisfying an inequality a2≥a3; and an actuator capable of driving the clutch member toward a position where the movable dog teeth mesh with the dog teeth. |
| US11402001B2 |
Ball screw assembly and open nut thereof
An open nut and a ball screw assembly having the open nut are provided. The ball screw assembly includes a guider, an open nut, and a ball circulating assembly. The open nut includes an axial cylinder, an open shield, and two circulators. The two circulators are respectively disposed on a first axial wall and a second axial wall of the axial cylinder with an axial opening. Each of the circulators includes an inner member and an outer member. The inner member and the outer member are assembled to each other and are respectively in communication with an inner ball race between the guider and the open nut and an outer ball race of the open nut. Therefore, the inner ball race, ball races of the two circulators, and the outer ball race form a ball circulating race, and the ball circulating assembly rolls in the ball circulating race. |
| US11402000B2 |
Tensioner with spring force control in a second bore
A tensioner for tensioning a chain span which uses two pistons. The movement of the two pistons may be coupled together. The first piston provides damping to the chain span and a second piston provides variable, dominant and automatically adjusting spring force to the chain span. The tensioner automatically adjusts the mean tension force to keep the chain tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads. |
| US11401998B2 |
Actuator
An actuator is provided, in which second support shafts are protruded to an output shaft side in an axial direction of a second planetary carrier. A power transmission member having convex portions which are protruded radially outward and receive rotation forces from the second support shafts are arranged on a second planetary carrier side of the output shaft in the axial direction. An elastic member is arranged between the second support shafts and the convex portions in a rotation direction of the output shaft. Therefore, the rotation force of the second planetary carrier due to rotation drive of an electric motor is transmitted from the second support shafts to the convex portions of the power transmission member via the elastic member. |
| US11401997B2 |
Motor with speed reduction mechanism
A motor includes a motor unit, a speed reduction mechanism, a motion conversion mechanism, and a housing. The motion conversion mechanism converts rotary motion of the speed reduction. mechanism into reciprocating rotary motion and transmits the motion to an output shaft. The speed reduction mechanism includes a worm, a first gear, and a second gear. The worm is disposed on a rotation shaft of the motor unit. The first gear transmits rotation of the worm and rotates about a first shaft. The second gear receives rotation of the first gear and rotates about a second shaft. The motion conversion mechanism includes a rotary member and a rod. The rotary member includes a sector gear and rotates about an axis of the first shaft. The rod couples the second gear and the rotary member. The output shaft includes an output gear that engages the sector gear. |
| US11401996B2 |
Internal combustion engine
The present invention provides an internal combustion engine comprising a crankshaft, the crankshaft comprising main bearing journals and cranks for connecting the crankshaft to piston rods of the engine, wherein the crankshaft is provided with counterweights, wherein at least a first counterweight is formed as a separate element and connected to the crankshaft. The present invention is characterized in that at least a second counterweight is formed integrally with the crankshaft. |
| US11401994B2 |
Air spring gaiters with floating ring
An assembly for an air spring includes an outer gaiter defined in part by an interior portion, an inner gaiter defined in part by an exterior portion, at least one floating ring extending from a first floating ring end to a second floating ring end, the first floating ring end coupled with the inner gaiter and the second floating ring end is coupled with the outer gaiter, where the at least one floating ring allows the outer gaiter to move relative to the inner gaiter. |
| US11401992B2 |
Energy dampeners for electronic devices
An energy dampener for use in an electronic device can include a carbon nanotube-aerogel matrix, including carbon nanotubes embedded in an aerogel and a rubber composited with the carbon nanotube-aerogel matrix. |
| US11401988B2 |
Dual action magnetic brakes and related methods
Dual action magnetic brakes and related methods are provided. In one aspect, such a brake includes a housing, a rotatable shaft extending through the housing, and a braking assembly in the housing. The braking assembly includes a coil and a braking member. The coil can generate a magnetic field when energized with electrical current. The braking member, and one or more flexible members attached thereto, can move in response to the presence or absence of the magnetic field to facilitate rotation or non-rotation of the shaft. |
| US11401986B2 |
Vehicle control device, and irregular ground traveling vehicle including the same
A controller for a vehicle driven by transmitting a torque generated by a torque generator to driving wheels corrects the torque generated by the torque generator according to a torsion rate of an elastic torsion element present in a torque transmission system extending from the torque generator to the driving wheels to reduce the torsional vibration of the elastic torsion element. The torque generator may include an engine and a clutch to transmit a rotation of the engine to the torque transmission system. The controller may include a clutch controller to correct the torque generated by the torque generator by controlling the transmission torque of the clutch according to the torsion rate of the elastic torsion element. |
| US11401979B2 |
Clutch hub assembly
An improved clutch hub assembly is disclosed. The improved clutch hub assembly provides improved wear resistance at the interfaces between separator plates and a clutch hub while allowing an operator to have improved clutch lever control and modulation when manually engaging or disengaging the clutch system. |
| US11401974B2 |
Breathing assistance apparatus
An apparatus for delivering a flow of gas having: a controller; a housing defining a gas-flow passage flowing a high concentration oxygen gas; a motor with windings, resilient bearing mounts and an impeller to deliver the gas through the gas-flow passage; a flexible printed circuit electrically connecting the motor to the controller and sensor system; and an elastomeric shield to pneumatically isolate the windings from the gas-flow passage. |
| US11401968B2 |
Snap-in bearing cup
A joint assembly having a first joint member drivingly connected to a second joint member by a third joint member. The first joint member of the joint assembly has a first yoke arm with a first yoke arm aperture defined by a first yoke arm aperture surface and a second yoke arm with a second yoke arm aperture defined by a second yoke arm aperture surface. The joint assembly M further includes one or more bearing cup assemblies having a bearing cup with a base portion and a tubular portion. At least a portion of the bearing cup assemblies are received and/or retained within at least a portion of the first yoke arm aperture and the second yoke arm aperture of the first joint member. One or more attachment portions extend outboard from at least a portion of an outer surface of the base portion of the bearing cup. |
| US11401966B2 |
Fastener structure
A fastener structure includes a body portion and a fastening body. The body portion has a solderable layer, and the solderable layer is soldered to a plate body. The fastening body combines movably with the body portion. The fastening body has a head and a fastening portion. The body portion or the fastening body, or both the body portion and the fastening body is provided on the plate body for soldering after it is picked up by a tool so that the body portion can combine with the plate body. Also, the body portion or the fastening body, or both the body portion and the fastening body combines with a assisting pickup unit, and the fastener structure is provided on the plate body for soldering after it is picked up by a tool through the assisting pickup unit so that the body portion can combine with the plate body. |
| US11401964B2 |
Detachable handle fastening coupling for working implements
A handle fastening coupling, preferably for household and gardening implements comprises a guide piece (12) that is pressed into a handle-tube end and has an elongated guide channel (14) for a handle insert pin (3), which has a first end fastened to the implement and second free end, wherein the second end has a lock opening (6); and a locking element (20) that is preloaded by a latch spring (18) in a first radial direction perpendicular to the handle axis and that is designed to snap into the lock opening of the handle insert pin, wherein the locking element can be moved out of the lock opening in the radial direction by an operating button in order to release the handle insert pin (3) to pull it out of the guide channel. |
| US11401960B1 |
Clamping device
A clamping device for securing an accessory to a pole is disclosed herein. The clamping device includes a first clamp component formed from bent wire, the first clamp component configured to partially circumscribe a pole, and including at least one offset portion for defining an accessory receiving space between the first clamp component and a sidewall of the pole; a second clamp component rotatably coupled to the first clamp component, formed from bent wire, and configured to partially circumscribe the pole; and a handle component configured to couple the second clamp component to the first clamp component. When the handle component is rotated in a first tightening direction, the first clamp component and the second clamp component are brought into secure engagement about the circumference of the pole. When the handle component is rotated in a second loosening direction, the clamping device is capable of being disengaged from the pole. |
| US11401958B2 |
Arrangement and method for operating a hydraulic cylinder
A carrier comprising a hydraulic cylinder having a piston, a controller and a piston position sensor, wherein the carrier is arranged to carry an accessory through the use of the hydraulic cylinder and wherein the controller is configured to: receive piston position information; determine a direction of movement of the piston; and if the piston position equals a stop distance from an end wall of the hydraulic cylinder in the direction of movement, abort the movement. |
| US11401957B2 |
Integrated gear pump in remote mounted hydraulic control unit
A hydraulic control unit comprises a housing, an accumulator, a gear pump assembly, and a motor. The housing comprises an accumulator compartment, a gear pump compartment, and a flow path section connecting the gear pump compartment and the accumulator compartment, the flow path section comprising at least a supply path and a pressurizing path. The accumulator in the accumulator compartment comprises a movable piston dividing the accumulator compartment into a high pressure reservoir and a low pressure reservoir. A gear pump assembly is in the gear pump compartment. The gear pump assembly is configured to draw return fluid from the low pressure reservoir via the supply path and to pump pressurized fluid through the pressurizing path to accumulate in the high pressure reservoir. A motor assembly is connected to the gear pump compartment of the housing and is configured to power the gear pump assembly. |
| US11401955B2 |
Piston-cylinder unit
A piston-cylinder unit having a cylinder housing (1) with a cylinder interior (2) and a piston (3) arranged in cylinder interior (2), from which a piston rod (4) starts and is guided out from the cylinder housing (1) through an opening and at the same time is sealed with respect to the cylinder housing (1) by a piston rod seal (12) arranged on the cylinder housing (1). A sliding sleeve (11) made of plastic and entrained by the piston rod (4) is arranged on the piston rod (4), and the piston rod seal (12) bears against said sliding sleeve. |
| US11401953B2 |
Fluid conduit and method of making same
A fluid conduit includes, a body, a first conduit portion connected to the body, a second conduit portion connected to the body, and a base connected to the second conduit portion. The body, the first conduit portion, the second conduit portion, and the base may be formed as a monolithic component via additive manufacturing. A method of making a fluid conduit may include forming sets of layers. The set of layers may include parts or portions of the fluid conduit and/or supports. |
| US11401950B2 |
Pump housing having a fastening structure
An electric motor-vehicle coolant pump includes a pump housing with a flow housing part and a separate motor housing part, a spiral flow channel with an axial inlet and a tangential outlet, a rotatably supported fluid-conveying element, an electric drive motor which drives the rotatably supported fluid-conveying element, and a mounting structure which mounts the pump housing to a vehicle structure. The mounting structure is only arranged on the flow housing part. The flow housing part at least partially surrounds the spiral flow channel and at least partially surrounds the rotatably supported fluid-conveying element. The separate motor housing part surrounds the electric drive motor. |
| US11401946B2 |
Fan flow guide structure
A fan flow guide structure includes a centrifugal fan impeller and a case. The case includes an upper cover and a base seat. A fan impeller space and a flow passage are defined between the upper cover and the base seat. The fan impeller space serves to receive the centrifugal fan impeller. The flow passage is in communication with the fan impeller space and a lateral wind outlet. A tongue section is disposed in the flow passage in adjacency to the lateral wind outlet. A wind supplementing section is defined opposite to the tongue section. An intake gill section is disposed on the upper cover and/or the base seat in communication with the wind supplementing section. Accordingly, the airflow outside the case can be guided from the intake gill section into the wind supplementing section to enhance the flow amount of the fan. |
| US11401944B2 |
Impeller and centrifugal compressor
The impeller includes a disc having a main surface extending outward in a radial direction toward one side in an axial direction, a plurality of blades defining a flow path extending to an outlet on one side from an inlet on the other side in the axial direction, and a cover disposed to cover the plurality of blades. At least one of an inlet side region and an outlet side region which are a connection portion between the blade and the main surface and a connection portion between the blade and the cover has a small fillet portion curved in an arc shape and having a small radius of curvature. An intermediate region formed between the inlet side region and the outlet side region has a large fillet portion having a large radius of curvature. |
| US11401940B2 |
Aeromechanical identification systems and methods
An aero damping measurement system is provided. The system includes a shroud defining a tunnel, a hub disposed within the tunnel, and a plurality of blades coupled to the hub. The blades may rotate about the hub. A gas pressure probe may have a tip extending to the tunnel to deliver a pressurized burst into the tunnel. An aeromechanical identification system may include a pressurized gas source, a valve in fluid communication with the pressurized gas source, and the gas pressure probe may be in fluid communication with the valve. The valve may control a flow of a pressurized gas from the pressurized gas source into the gas pressure probe. A pressure sensor may be coupled to the gas pressure probe and configured to measure a pressure within the gas pressure probe. |
| US11401937B2 |
Scroll compressor having wear preventing member located between key portion of orbiting scroll and key of Oldham ring
A scroll compressor includes a first scroll and a second scroll engaged with the first scroll to form a compression chamber with the first scroll while performing an orbiting movement with respect to the first scroll. A frame is fixed to a side of the first scroll with the second scroll interposed between the frame and the first scroll and the frame supporting the second scroll in an axial direction. An Oldham ring includes a ring portion and a key portion protruding from the ring portion. The key portion is slidably coupled to a key recess in the frame or the second scroll to enable the second scroll to perform the orbiting movement, and the key portion of the Oldham ring is formed of the same material as the second scroll. A wear preventing member is provided between the key portion and the key recess. |
| US11401936B2 |
Motor-driven roots pump with smooth activation in low-temperature environment
A motor-driven Roots pump includes a housing, a drive shaft and a driven shaft that have axial lines parallel with each other, and a gear chamber. The housing includes a first partition that has a first defining surface, a second partition having a second defining surface, and a relief recess. An addendum circle of the drive gear and an addendum circle of the driven gear intersect with each other at a first intersection point. A plane that includes both the axial lines is defined as an imaginary plane. The first intersection point is located on a side of the imaginary plane on which the drive gear and the driven gear start meshing with each other. An opening of the relief recess is opposed to the first intersection point and is arranged in a region on a side of the imaginary plane on which the first intersection point is located. |
| US11401933B2 |
Scroll-type compressor
A compressor is disclosed, which comprises a regulate portion provided in at least one of a main frame and a fixed scroll to control or selectively shield an opening of a delivery path or a fixed path. |
| US11401930B2 |
Method of manufacturing a fluid end block with integrated web portion
A method of manufacturing a fluid end block for a high pressure reciprocating pump, including forming, from a single-piece forging of a steel alloy, a main body having an outwardly facing body forward face, an outwardly facing body rear face opposite the body forward face, and opposing side surfaces connecting the forward face and the rear face, and a plurality of chambers; forming a web portion protruding outwardly from the outwardly facing body forward face, the web portion having an outwardly facing web forward face and a curvilinear side surface; forming a plurality of bosses protruding from the web forward face and having a forward facing end; and forming a plunger bore extending through each of the plurality of bosses from the forward facing end of the respective boss to one of the plurality of chambers in the main body portion, each plunger bore configured to receive a reciprocating plunger. |
| US11401929B2 |
System and method for monitoring operations of equipment by sensing deformity in equipment housing
A universal monitoring system applicable to a variety of hydraulic fracturing equipment includes an accelerometer mounted on a housing of a positive displacement pump and configured to sense a vibration associated with the positive displacement pump on start-up and generate a wake-up signal. A processor is communicatively coupled to the accelerometer and configured to initiate execution upon receiving the wake-up signal. A pressure strain gauge is mounted directly on the pump housing and is configured to sense deformity in the pump housing caused by alternating high and low pressures within the pump housing and generate sensor data. The processor is configured to receive the sensor data from the pressure strain gauge and configured to analyze the sensor data and determine a cycle count value for the positive displacement pump, and there is at least one communication interface coupled to the processor configured to transmit the sensor data and cycle count value to another device. |
| US11401927B2 |
Status monitoring and failure diagnosis system for plunger pump
Disclosed is a status monitoring and fault diagnosis system for a plunger pump, including a monitoring and fault diagnosis device. The monitoring and fault diagnosis device monitors and diagnoses a hydraulic end assembly of a plunger pump. The monitoring and fault diagnosis device further monitors and diagnoses a power end assembly and/or a reduction gearbox assembly. Beneficial effects: The diagnosis system monitors and diagnoses not only a hydraulic end assembly, but also a power end assembly and/or a reduction gearbox assembly, that is, an equipment fault can be accurately predetermined in time for an entire plunger pump, so that high-pressure, large-displacement, and continuous operation requirements on fracturing sites at present are better satisfied, and on-demand maintenance is adopted instead of regular examination and maintenance, thereby saving labor, time, and materials to achieve economic efficiency. |
| US11401926B2 |
Built-in air pump and inflatable device
A built-in air pump comprises a housing body and a panel. The panel couples to the housing body and defines an opening. A main pump body couples to the housing body and defines a first accommodating chamber in fluid communication with the opening and with a first and a second venting port. An air replenishing pump has an air replenishing pump body that is located adjacent to the main pump body. The air replenishing pump body couples to the housing body and defines a second accommodating chamber having therein the air replenishing pump. An air passage switch, located in the first accommodating chamber, is moveable between a first and a second position. A controller is in electrical connection with the air replenishing pump and configured to activate the air replenishing pump based on a time determination. An inflatable body including the built-in air pump assembly is also disclosed herein. |
| US11401922B2 |
Displacement control valve
A displacement control valve includes a housing a first, a second, and a third chamber; a valve body having a first reciprocating valve part that opens or closes discharge paths in the first chamber; and a solenoid that applies electromagnetic force to the valve body in the direction that closes the first valve part. The control valve has a spool valve part formed on the external circumference of the valve body and a spool seating part formed on the internal circumference of the valve housing and that is opened while the first valve part is closed and vice versa upon reciprocation of the valve body to control the rate of flow between a control chamber and an inlet chamber. |
| US11401921B2 |
Tilt linkage for variable stroke pump
A variable stroke high pressure pump is disclosed. The pump uses a wobble plate design with dynamically variable tilt to provide continuous adjustment of pump stroke length and output. Dynamically variable tilt is accomplished using a linearly actuated tilt thruster rotationally coupled to the drive shaft to maintain a selected tilt of the wobble plate through the rotation of the wobble plate. |
| US11401920B2 |
Lightning strike fault monitoring system for wind turbine generator system and lightning protection system
A lightning strike fault monitoring system for a wind turbine generator system and a lightning protection system (110) thereof, wherein the lightning strike fault monitoring system for the wind turbine generator system includes the lightning protection system. The lightning protection system (110) comprises a main body (101) provided with a blind hole (1011), a core (102), a connecting member (103) made of gasifiable material, a first elastic member (104), a second elastic member (105), a sealing cover (106), a bottom plate (107), and a switch used for connecting between an external signal source and a detecting terminal. The core (102) and the first elastic member (104) are respectively accommodated in the blind hole (1011), and the core (102) is connected to the main body through the connecting member (103). One end of the first elastic member (104) abuts against the core (102), and the other end is connected to the bottom wall of the blind hole (1011). One side of the sealing cover (106) is connected to the bottom plate (107) through the second elastic member (105), and the other side of the sealing cover (106) abuts against the core (102). The switch is mounted on the bottom plate (107). The lightning protection system (110) can accurately provide electrical signals for the detecting terminal, so that maintainer can be accurately aware of the occurrence of a lightning strike in order to perform maintenance and troubleshooting of lightning strike failure, thereby improving safety. |
| US11401919B2 |
Bracket and transport frame for a hub of a wind turbine
A bracket for a transport frame, configured to hold a hub of a wind turbine in place at the transport frame during transport of the hub, the bracket holding the hub during the transport of the hub and mechanically connecting a holding device and the transport frame for attaching the holding device at the transport frame, for moving the holding device relative to the transport frame, and for moving a contacting portion of the holding device against the hub, which is arranged in a predetermined position on the transport frame is provided. A transport frame is also provided that includes, at least one bracket. |
| US11401918B2 |
System and method for controlling a wind turbine
A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects an oscillation in the power output of the wind turbine during a recovery from a transient event. In response to detecting the oscillation, a portion of the power output during a peak phase of the oscillation is stored in an energy storage device. A portion of the stored power is then discharged during a valley phase of the oscillation in order to reduce an amplitude of the oscillation of the power output that is delivered to the power grid. |
| US11401915B2 |
Method of controlling a wind turbine and apparatus therefor
Provided is a method of controlling a wind turbine. According to the method, a control command for the wind turbine or another wind turbine is received and detected to conflict with at least one stored control command. In addition, a priority and a reception time of the received control command is detected and the received conflicting control command is stored in a memory with the priority and the reception time as a stored control command. In addition, a sequence of the stored conflicted control commands is created or updated based on the priorities and the reception times of the stored conflicted control commands and the stored control command with the highest priority and the oldest reception time is executed as the currently executed control command. Provided is a computer program and an apparatus for carrying out the method and a system including the apparatus. |
| US11401914B2 |
Method for operating a wind turbine
Provided is a method for operating a wind turbine that includes a rotor operable with variable rotor speed and having rotor blades with adjustable pitch angles. Wind causes a rotor thrust acting on the rotor depending on the rotor speed and depending on a common pitch angle. In partial load, when the wind is below rated speed, the turbine is controlled by a rotor speed curve, defining the rotor speed for each operating point of the turbine. In a normal mode when the operation of the turbine is not throttled, a normal rotor speed curve in combination with a normal common pitch angle is used, and in a throttled mode when the thrust is to be limited, a throttled rotor speed curve, different from the normal rotor speed curve, in combination with a throttled common pitch angle, different from the normal common pitch angle, is used to reduce the thrust. |
| US11401913B2 |
Yaw calibration method and system for wind turbine
The disclosure proposes a yaw calibration method and system for a wind turbine. The calibration method includes: establishing a cylindrical coordinate graph of wind resource distribution based on historical wind farm operation data, to determine a wind direction interval of main inflow wind conditions of a wind farm; calculating an effective value of active power of each wind speed sub-interval, and obtaining a fitted power curve of each refined interval through curve fitting; and setting an angle between a central axis of a refined interval for a fitted power curve corresponding to a calibration curve in each wind speed range and a central axis of the to-be-calibrated wind direction interval as a yaw error calibration value in the wind speed range, to establish a wind speed-yaw error calibration value lookup table; and determining a yaw error calibration value under a current wind direction and a current wind. |
| US11401909B2 |
Kinetic fluid energy conversion system
A kinetic fluid energy conversion system comprises one or more hubs which rotate about a central hub carrier, each including one or more independently controlled articulating energy conversion plates (“ECP”). An articulation control system rotates each ECP independently of all others to control its orientation with respect to the fluid flow direction between an orientation of 90° perpendicular to the fluid flow, while traveling in the direction of the flow and 0° minimal drag parallel position to the flow, while traveling in the direction against the flow or blocked from it. Each hub can be operably coupled to another hub to form one or more counter-rotating hub and ECP assemblies whereby the mechanical energy is transferred through the hubs, to one or more clutch/gearbox/generator/pump assemblies thereby permitting such assemblies to be land-based when the system is air-powered, and above or near the surface, when the system is water-powered. |
| US11401906B2 |
Engine driving apparatus
An engine driving apparatus includes an engine, a starter motor, and a starter motor controller. The engine includes a plurality of cylinders. When any one of the plurality of cylinders enters a compression stroke, another one of the cylinders enters an expansion stroke. The starter motor is coupled to a crankshaft of the engine. The starter motor controller is configured to control the starter motor. Before restarting the engine, the starter motor controller performs pre-restart control for adding torque to the crankshaft by using the starter motor to open an exhaust valve of the cylinder in the expansion stroke. |
| US11401901B2 |
Injector component having a coating, injector, as well as a device for coating
An injector component of an injector for introducing a fluid is described as including a base body, a coating on at least one first end face of the base body, the coating having a maximum, which lies on an outer half of the base body, and an outer lateral surface of the base body does not have any coating. |
| US11401899B2 |
Physical quantity detection device
To obtain a physical quantity detection device capable of reducing an intake amount of air accompanied by foreign matter. A physical quantity detection device (20) of the invention includes a housing arranged in a main passage through which a measurement target gas (2) flows. The housing is provided with a second sub-passage (B) that takes in a part of the measurement target gas (2) flowing in the main passage, a circuit chamber (135) that accommodates a pressure sensor (320) that detects a pressure of the measurement target gas (2), and a pressure introduction passage (170) having one end opened in the middle of the second sub-passage (B) and the other end opened in the circuit chamber (135) and capable of introducing the pressure of the measurement target gas (2) from the second sub-passage (B) into the circuit chamber (135). In the pressure introduction passage (170), an introduction port (171) is arranged at a position offset outward from a side wall surface (152b) of the second sub-passage (B). |
| US11401897B2 |
Intake pipe
An intake pipe includes a pipe body and an ejector part. The pipe body includes an intake passage therein. The ejector part includes an air inlet, a vapor inlet, and an outlet pipe part. The ejector part is configured to generate a negative pressure in response to a compressed air supplied from a compressor through the air inlet to suction fuel vapor generated in a fuel tank through the vapor inlet. The ejector part is configured to discharge a gaseous mixture of the compressed air and the fuel vapor into the intake passage via the outlet pipe part. The pipe body includes a passage wall part formed with the ejector part as a monolithic, single-piece. The passage wall part includes a recess open to the intake passage side. The outlet pipe part is disposed in the recess and extends in a discharge direction of the compressed air from the ejector part. |
| US11401891B2 |
Apparatus for desuperheating high temperature, high velocity steam
A desuperheating spray chamber for use in a rocket exhaust recovery system for a nuclear thermal propulsion rocket, including a substantially-cylindrical outer tank with an upper end including an entrance port and two exhaust ports, a substantially-cylindrical shroud extending downwardly from an inner surface of the upper end of the tank, an annular inner spray ring that is both disposed within and concentric with the shroud; and an annular outer spray ring that is disposed between a side wall of the outer tank and the shroud, the annular outer ring being concentric with the shroud. |
| US11401887B2 |
Membrane thrust inverter for an aircraft propulsion unit
An improved thrust reverser for an aircraft propulsion assembly includes redirection of the air flow for performing the thrust reversal by one or more closure membranes, i.e. by thin and flexible structures deployed across the propulsion assembly. The improved thrust reverser includes at least one closure membrane arranged to deflect at least one portion of the air flow in the direction of the evacuation structure when the thrust reverser is in the reverse jet position and an intermediate structure movable in rotation relative to the fixed structure. |
| US11401886B2 |
Turbofan comprising a set of rotatable blades for blocking off the bypass flow duct
A turbofan having a nacelle including a slider translationally mobile to open a window between a duct and the exterior, a plurality of blades, each rotationally mobile on the slider, and a maneuvering system moving each blade and comprising for each blade, a shaft rotationally mobile on the slider and onto which the blade is fixed, an arm having a first end fixed to the shaft, an arc coaxial with the longitudinal axis, mounted rotationally mobile on the slider about the longitudinal axis, a rectilinear rod fixed by its base to the arc, the rectilinear rod inserted into a through-bore of a stock, wherein the stock is mounted translationally free relative to the rectilinear rod, and the stock is mounted rotationally free on the arm at its second end about a rocking axis parallel to the rotational axis, and an actuation system producing arc rotation in two opposite directions. |
| US11401885B2 |
Engine unit
An engine unit includes an engine including a cylinder injection valve that sprays fuel into a combustion chamber and an ignition plug that is able to ignite fuel sprayed from the cylinder injection valve. When expansion stroke injection drive of performing final fuel injection from the cylinder injection valve in an expansion stroke and igniting the fuel using the ignition plug in synchronization with the fuel injection in the expansion stroke is performed, upper and lower limits of an ignition timing are guarded such that the ignition timing is in a predetermined range centered on a final fuel injection start timing at a final determination timing of the ignition timing. |
| US11401883B2 |
System and method for direct injection fuel pump control
Methods and systems are provided for vehicle direct injection fuel pump control. In one example, a method may include reducing a flow speed of fuel from a cam-driven direct injection fuel pump for at least half of a total duration of an output stroke of the fuel pump. A cam driving the fuel pump may reduce the flow speed at a first rate during a main portion of the output stroke, and the cam may reduce the flow speed at a second rate during an end ramp portion of the output stroke. |
| US11401877B2 |
Control system of air-fuel ratio sensor
A control device selectively executes first and second energization control for controlling an energization amount to the heater. The first energization control is executed to keep temperature of a sensor element within an active temperature region. The first energization control is PWM control in which the energization amount is controlled with closed loop control such that an impedance of the sensor element matches a target value. The second energization control is PWM control in which the energization amount is controlled with open loop control so as to keep the temperature of the sensor element within a preset temperature region that is lower than the active temperature region. The control device executes the second energization control during an internal combustion engine is stopped while executing the first energization control during the internal combustion engine is not stopped. |
| US11401873B2 |
Emergency vehicle throttle management system
An emergency vehicle throttle management system includes a system controller having a main body, a processor, a memory, a multiplex connectivity component, a powertrain connectivity component, and a life safety connectivity component. The life safety connectivity component functioning to communicate directly with one of the life safety systems onboard the emergency vehicle. The powertrain connection component functioning to communicate with the powertrain components of the emergency vehicle which are mechanically coupled to the life safety system. The system controller including functionality for transmitting a powertrain resource request to the powertrain of the emergency vehicle in response to a throttle adjustment request received from the life safety system or a command from the throttle pedal of the vehicle. A throttle rule management unit evaluates error notifications received from the multiplex system, and selectively instructs the throttle source circuit to generate powertrain resource requests. |
| US11401871B2 |
Engine system
An engine system including: an engine configured to output shaft power by burning fuel, and a system main portion configured to operate using the shaft power of the engine. The engine system further includes: an operation controlling unit, and a power source unit configured to convert commercial power to operating power and supply the operating power to the operation controlling unit. The power source unit includes: a system main portion-side power source unit configured to supply operating power for controlling the operation of the system main portion, and an engine-side power source unit configured to supply operating power for controlling the operation of the engine. The system main portion-side power source unit and the engine-side power source unit are provided individually and separately from each other. |
| US11401867B2 |
Igniter for gas turbine engine
There is disclosed an igniter for a gas turbine engine including: a base, a glow plug heater rod, the heater rod extending from the base along an axis and terminating in a rod end, a peripheral wall extending circumferentially around the rod end and having a distal end directed away from the base, a gap between the peripheral wall and the heater rod, the rod end being axially retracted relative the distal end of the peripheral wall. |
| US11401865B1 |
Direct drive unit removal system and associated methods
Described herein are embodiments of systems and methods for the removal of a direct drive unit (DDU) housed in an enclosure, such as a direct drive turbine (DDT) connected to a gearbox for driving a driveshaft connected to a pump for use in hydraulic fracturing operations. |
| US11401862B2 |
Stator configuration for gas turbine engine
A stator configuration for a gas turbine engine including a splitter segment. Also included is a first stator extending radially outwardly from the splitter segment. Further included is a second stator extending radially inwardly from the splitter segment, the splitter segment, the first stator and the second stator being a single, integrally formed structure. |
| US11401860B2 |
Method of using oscillating assembly and exhaust system
A method of using an exhaust system includes activating an oscillating assembly connected to an exhaust line, wherein the oscillating assembly is configured to vibrate the exhaust line. The method further includes measuring a value indicating a flow of particles through the exhaust line. The method further includes comparing the value with a predetermined threshold value. The method further includes increasing a rate of vibration of the exhaust line in response to the value being below the predetermined threshold value. |
| US11401857B2 |
Gradient-type expansion tank for automobile
An engine-and-electric-machine assembly is provided that includes an engine and an electric machine, a crankshaft being provided in the engine, the crankshaft including a main body and an extension section that extends out to the exterior of the engine, the extension section forming a rotation shaft of the electric machine, and a rotor of the electric machine being mounted on the extension section, wherein a terminal of the rotation shaft is connected to a coolant pump, a rotor of the coolant pump is mounted to the rotation shaft, and while the rotation shaft is rotating the rotation shaft drives the coolant pump to provide coolant to the electric machine. By connecting the rotation shaft of the electric machine to the coolant pump, the pump can be highly integrated into the system and reduce manufacturing cost. |
| US11401850B2 |
Exhaust gas purification catalyst
To provide an exhaust gas purification catalyst that is less likely to cause an increase in pressure loss, even a large amount of zeolite-based SCR catalyst is used to improve NOx purification capability. The exhaust gas purification catalyst includes a DPF provided with zeolite having a primary particle size equal to or less than 0.5 μm. In addition, it is preferable that 50% particle size of the zeolite measured by dynamic light scattering is equal to or less than 2.0 μm, and further, it is preferable that the 90% particle size of the zeolite is equal to or less than 2.5 μm. |
| US11401847B2 |
Methods and systems for an exhaust tuning valve
Methods and systems are provided for an exhaust tuning valve. In one example, a method may include adjusting the exhaust tuning valve in response to a steering wheel angle input. Additionally or alternatively, the position of the exhaust tuning valve may be adjusted differently in response to a same steering wheel angle input during different driving behaviors. |
| US11401846B2 |
Oil mist separator for internal combustion engine
An oil mist separator for an internal combustion engine includes a cylinder head cover, a baffle plate, and a cam spray plate. The baffle plate is fixed to an inner surface of the cylinder head cover. A section between the cylinder head cover and the baffle plate defines an oil separation chamber. The cam spray plate is fixed to a surface of the baffle plate opposite to the cylinder head cover. The cam spray plate defines an oil passage. The baffle plate includes a discharge hole through which oil separated from blow-by gas by the oil separation chamber is discharged. The cam spray plate includes a passage defining portion and a baffle plate portion. The passage defining portion defines the oil passage. The baffle plate portion is integrated with the passage defining portion and overlapped with the discharge hole. |
| US11401844B2 |
Blow-by gas leak diagnostic device
A blow-by gas leak diagnostic device includes a first PCV flow path, a second PCV flow path, a fresh air inlet, a pressure measurement unit, a first valve that opens and closes the first PCV flow path, a second valve that opens and closes the second PCV flow path, a third valve that opens and closes the fresh air inlet, a valve control unit, and a leak diagnosis unit. The valve control unit controls an opening degree of the third valve when a downstream side of an intake manifold with respect to a throttle valve has a negative pressure, and the second valve is in a closed state. The leak diagnosis unit diagnoses presence or absence of a leak in the first PCV flow path on the basis of an inner pressure of the first PCV flow path measured by the pressure measurement unit. |
| US11401841B2 |
Valve device
An annular groove has: a side peripheral surface that is shaped in a ring form and is formed such that the side peripheral surface inwardly extends from a bottom surface of the annular groove in a radial direction of a tubular member and is joined to an inner peripheral wall of the tubular member; and a specific shape surface that is formed along at least a part of the side peripheral surface between a bottom surface side end part and an inner peripheral wall side end part of the side peripheral surface such that a diameter of the specific shape surface is progressively reduced in an axial direction of the tubular member from one axial side, at which the bottom surface is placed, toward another axial side, at which the inner peripheral wall is placed. |
| US11401840B2 |
Apparatus and method for valve timing in an internal combustion engine
Apparatus for controlling valve timing in an internal combustion engine locates a first valve port in a first side of the engine cylinder and a second valve port in a second side of the engine cylinder. A first rotating valve disc and a second rotating valve disc are respectively disposed next to the first and second valve port. Each rotating valve disc includes a valve port. Each disc rotates in synchronism with the crankshaft to align its' port with the respective first and second valve ports. A variety of intake devices coupled to the first rotating valve disc control intake air flow into the engine cylinder, and a variety of exhaust devices coupled to the second rotating valve disc control exhaust gas flow from the engine cylinder. |
| US11401839B2 |
Rocker based bleeder engine brake
An exhaust valve rocker arm assembly operable in an engine braking mode includes a rocker arm configured to rotate about a rocker shaft defining a pressurized fluid supply conduit, the rocker arm having a fluid supply passage defined therein. An engine brake capsule is disposed in the rocker arm and in fluid communication with the fluid supply passage. The engine brake capsule is configured to selectively move from a retracted position to an extended position where the engine brake capsule engages and partially opens an exhaust valve to perform a bleeder brake operation. A reset pin assembly is configured to selectively drain fluid from the engine brake capsule. |
| US11401836B2 |
Portion of a fluid drainage conduit for a turbomachine
Portion of a fluid drainage conduit for a turbomachine, comprising an upstream stretch, a downstream stretch fixed relative to the upstream stretch and a retention chamber onto which the upstream stretch opens. The retention chamber is capable of communicating with the downstream stretch through a first aperture and a second aperture. The drainage conduit portion comprises an obturator to obturate the second aperture. The first and second apertures are provided so that when the obturator obturates the second aperture, the retention chamber retains fluid by allowing a fluid overflow to flow from the upstream stretch to the downstream stretch through the first aperture, and when the obturator does not obturate the second aperture, the fluid can flow from the upstream stretch to the downstream stretch at least through the second aperture. |
| US11401834B2 |
Method of securing a ceramic matrix composite (CMC) component to a metallic substructure using CMC straps
A method for attaching a first component composed of a ceramic matrix composite (CMC) to a second component composed of a metallic substructure is provided. The first component comprises at least two slots formed within a body of the first component and a configured to accommodate a thickness of a continuous CMC strap. The ends of the CMC strap are inserted into respective slots in the first component and then inserted into corresponding slots in a second component. The ends are secured to the second component by a fastening means thus securing the first component to the second component. |
| US11401833B2 |
Seal oil systems
A gas turbine engine includes a first bearing compartment and a seal assembly within the first bearing compartment that includes a rotatable seal seat, a gutter radially outward of the seal seat and fixed against rotation. The gutter includes a channel on its radially inner face. A second bearing compartment is also included. A scavenge pump is in communication with a first supply line configured to supply the first bearing compartment and a second supply line configured to supply the second bearing compartment. The gutter is in communication with the scavenge pump through a gutter scavenge line. A valve between the scavenge pump and the second supply line is configured to close in response to a dry port event, such that closing the valve stops oil supply to the second supply line, while allowing oil supply to the first supply line. |
| US11401828B2 |
Asymmetric turbomachinery housing for thermal expansion
A turbomachinery according to an embodiment includes an impeller including at least one blade, and a casing for housing the impeller rotatably. A size of a gap between a tip of the blade and an inner surface of the casing during a stop of the impeller is formed non-uniformly over a circumferential direction of the impeller. |
| US11401827B2 |
Method of manufacturing BOAS enhanced heat transfer surface
A method of manufacturing a seal includes providing a seal arc segment defining first and second seal supports at circumferential ends. The seal arc segment further defining radially inner and outer sides. The radially outer side includes radially-extending sidewalls and a radially inner surface joining the radially-extending sidewalls. The radially-extending sidewalls and the radially inner surface define a pocket. The method includes machining the radially inner surface to have a higher surface roughness than the sidewalls. |
| US11401825B2 |
Gas turbine engine control system and method for limiting turbine overspeed in case of a shaft failure
The invention regards a gas turbine engine control system and a method for limiting turbine overspeed in case of a shaft failure. The control system includes: an overspeed protection system that activates an activation member in case a shaft failure is detected; a fuel limiting mechanism coupled with the activation member, wherein the fuel limiting mechanism is configured to limit the fuel supply to the gas turbine engine combustor if the activation member is activated; a variable stator vane mechanism which is configured to adjust variable stator vanes of a compressor of the gas turbine engine in their rotational position, the variable stator vanes having a closed position which blocks air flow through the compressor. A connecting fuel line connecting the fuel limiting mechanism and the variable stator vane mechanism is provided, wherein upon activation of the activation member the fuel limiting mechanism pressurizes the connecting fuel line, thereby activating the variable stator vane mechanism to move at least one row of the variable stator vanes into the closed position. |
| US11401818B2 |
Turbomachine cooling trench
A component for a gas turbine engine. The component includes a body. The body has an exterior surface abutting a flowpath for the flow of a hot combustion gas through the gas turbine engine. Further, the body defines a cooling passageway within the body to supply cool air to the component. The component includes a leading face and a trailing face defining a trench therebetween on the exterior surface. The body defines a plurality of cooling holes extending between the cooling passageway and a plurality of outlets defined in the trench such that the trench is fluidly coupled to the cooling passageway. Additionally, the leading face and trailing face are each tangent to at least one of the plurality of outlets. The trench directs the cool air along a contour of the component. |
| US11401817B2 |
Airfoil assembly with a cooling circuit
An airfoil assembly for a gas turbine engine including a blade, platform, and dovetail. The airfoil assembly further includes a cooling circuit including an interior chamber of the dovetail having fluid communication with the exterior of the airfoil assembly or with an interior chamber of the blade and at least one cooling passage. |
| US11401816B1 |
Compressor rotor blade airfoils
A rotor blade includes an airfoil having an airfoil shape. The airfoil shape has a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in one of Table I, Table II, Table III, or Table IV. The Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances expressed in a unit of distance by multiplying the Cartesian coordinate values of X, Y and Z by a scaling factor of the airfoil in the unit of distance. The X and Y values, when connected by smooth continuing arcs, define airfoil profile sections at each Z value. The airfoil profile sections at Z values are joined smoothly with one another to form a complete airfoil shape. |
| US11401813B2 |
Method for manufacturing or for repairing a component of a rotary machine as well as a component manufactured or repaired using such a method
A method for manufacturing a component of a rotary machine, the component extending to an axial direction and a radial direction vertical thereto, and has an inner channel, extending from a first end of a core of a center of the component and to a second end at a radial limiting surface of the component and which is at least partially closed. A blank includes the core of the component and is limited by an outer surface in the radial direction. The blank is subtractively processed in a first subtractive process step, such that an outer contour is elaborated in the area of the outer surface, which extends in the radial direction, and a part of the channel is manufactured, which radially extends in the blank to the first end. The channel is finished by a build-up process on the blank. |
| US11401812B2 |
Opposed piston engine
An opposed piston engine has a driveshaft with at least one combustion cylinder positioned between opposing, curvilinear shaped cams mounted on the driveshaft, where the center axis of the combustion cylinder is parallel with but spaced apart from the driveshaft axis. A piston assembly is disposed in each end of the cylinder, with one piston assembly engaging one cam and the other piston assembly engaging the other cam. Each piston assembly includes a cam follower that can move along a curvilinear shaped cam to reciprocate the piston assembly within the cylinder. The combustion cylinder includes an intake port in fluid communication with an annular intake channel formed in the engine block in which the cylinder is mounted, and an exhaust port in fluid communication with an annular exhaust channel formed in the engine block. |
| US11401811B2 |
Gas or fluid driven mechanical stepper motor
Stepper motor with a housing 1,2,4,6,16, in which a cylindrical rotor 11,15 fixed on a central shaft 12 can rotate but not translate along an axial direction. There are cylindrical translators 9, 14 on both sides of the rotors 11, 15, where the translators 9, 14 are sealed fit in a cylindrical space within the housing 6 and around the central shaft 12 and where the translators 9, 14 can only translate in an axial direction, where in one axial position of a translator 9, 14 a set of triangular asymmetric teeth 20 located on the translator 9, 14 can interact and fit into a set of triangular asymmetric teeth 21 on the rotor 11, 15, where the shape of the teeth 21 on both sides of the rotor 11, 15 is symmetric and where one of the sets of teeth 20, 21 between one translator 9 (14) and the rotor 11 (15) and a set of teeth 20, 21 between the other translator 9 (14) and the rotor 11 (15) are tangentially shifted, i.e. offset over a length equal to half the width of a tooth 20, 21 and where the translators 9, 14 can be moved by a pressure difference between the part of the cylindrical space between the housing 6 and a translator 9, 14 and the part of the cylindrical space between the translator 9, 14 and the rotor 11, 15. |
| US11401810B2 |
Removable and replaceable anchored tunnel gasket
A gasket for concrete structures such as tunnel segments includes a gasket body having a bottom face configured to be positioned against a surface of an associated tunnel segment. The bottom face may include a set of spaced indentations. First and second anchor members protrude from opposed side edges of the gasket adjacent the bottom face of the gasket. The anchor members are configured to attach the gasket to the tunnel segment during casting of a precast concrete member. The gasket body forms a groove in the concrete member and the anchor members form side channels in the groove. A respective fin can be provided on opposed side faces of the gasket. Should a defect be found in the original gasket, the gasket body can be removed from the groove of the concrete member relatively easily, even in the field, and a replacement gasket having corresponding anchor members, fins and indentations, can be snapped into the groove. |
| US11401805B2 |
Colorimetric detection of amine-based shale inhibitors
A method of detecting an amine-based shale inhibitor in a wellbore servicing fluid (WSF) comprising contacting an aliquot of the WSF with an amine detector compound to form a detection solution; wherein the WSF comprises the amine-based shale inhibitor; and wherein the detection solution is characterized by at least one absorption peak wavelength in the range of from about 380 nm to about 760 nm; detecting an absorption intensity for the detection solution at a wavelength within about ±20% of the at least one absorption peak wavelength; comparing the absorption intensity of the detection solution at the wavelength within about ±20% of the at least one absorption peak wavelength with a target absorption intensity of the amine-based shale inhibitor to determine the amount of amine-based shale inhibitor in the WSF; and comparing the amount of amine-based shale inhibitor in the WSF with a target amount of the amine-based shale inhibitor. |
| US11401802B2 |
Detecting a flood front in a cross bed environment
A measurement is made of a formation containing a flood front with a downhole electromagnetic sensor. A parameter of a cross-bedding model is calculated by fitting the measurement to the cross-bedding model. A rock petrophysical parameter is calculated using the cross-bedding model. The cross-bedding model is updated using the rock petrophysical parameter. The updated cross-bedding model is used to make an operational decision. |
| US11401796B2 |
System and method for acquiring wellbore data
A system for acquiring data in a well may have a tubing placed therein. The system may include a pass-through device. The pass-through device may include a cylindrical housing having a central aperture extending through the cylindrical housing along a central axis thereof. The pass-through device may include a first sensor mounted on the cylindrical housing. The pass-through device may include a first communication device mounted on the cylindrical housing and operatively connected to the first sensor. The system may include a tubing mounting structure secured to the tubing and configured to hold the pass-through device at a desired location within the tubing. The system may include a control device. The control device may include a second communication device configured to communicate with the first communication device. The control device includes a processor operatively connected to the second communication device. |
| US11401790B2 |
Completion systems, methods to produce differential flow rate through a port during different well operations, and methods to reduce proppant flow back
Completion systems, methods to produce differential flow rate through a port during different well operations, and methods to reduce proppant flow back are disclosed. A completion system includes a tubular extending through a wellbore and having a first port and a second port. The completion system also includes a cover disposed along an interior of the tubular and configured to cover the first port and the second port while the cover is in a first position and is configured to uncover the first port and the second port while the cover is in a second position. The completion system further includes a valve disposed along the tubular and configured to differentially restrict fluid flow through the first port during different well operations. |
| US11401787B2 |
Systems and methods to chemically liven dead wells
A well livening system to reduce an accumulation in a wellbore includes a chemical skid, the chemical skid includes a chemical storage tank configured to contain the dosing chemical, a dosing pump configured to transfer an amount of the dosing chemical from the chemical storage tank to a wellbore, a skid line, and a dosing check valve configured to allow flow of the amount of dosing chemical, a controller system configured to determine the amount of dosing chemical to be transferred to the wellbore based on downhole data, the connection line configured to transport the amount of dosing chemical from the chemical skid, an injection spool, a hanger configured to support the chemical injection string and to isolate the wellbore from the surface, the chemical injection string configured to deliver the amount of dosing chemical to the wellbore, and a data acquisition system configured to collect downhole data. |
| US11401786B2 |
Systems and methods for hydrocarbon reservoir well connectivity graph optimization, simulation and development
Provided are embodiments that include segmenting a trajectory of a wellbore of a hydrocarbon well. For each segment, determining whether the segment includes a connection or a flow control element, and in response to determining that the segment includes a connection, generating a conduit link for the segment, in response to determining that the segment includes one or more flow control elements, generating an element link for the segment, or in response to determining that the segment does not include a connection or a flow control element, merging a modeling of the segment with modeling of a conduit link for an adjacent segment of the wellbore. Generating, based on the conduit links and element links generated, a reduced connectivity graph for the hydrocarbon well and a simulation of the hydrocarbon well. |
| US11401781B2 |
Method and stimulation sleeve for well completion in a subterranean wellbore
Stimulation sleeve (1) for well intervention in a subterranean wellbore, comprising: a housing (10) having a through channel (11) with a first end (11a) and a second end (11b), and one or more flow ports (14), and a sliding sleeve (13) disposed axially movable within the housing (10) to open or close said flow ports (14). Said sliding sleeve (13) is equipped with at least a first obturator seat (15) for receipt of a obturator (17) to partially or fully close fluid communication in the through channel (11) of the housing (10), and a time delay mechanism (20) to allow the sliding sleeve (13) to axially travel in the housing (10) at a predetermined speed to open or close said flow ports (14). The invention also discloses a method for well completion in a subterranean wellbore using a sliding sleeve (1). |
| US11401780B2 |
Electronic flow control node to aid gravel pack and eliminate wash pipe
A completion assembly to aid in gravel packing a wellbore which assembly includes a plurality of interconnected sand screen assemblies, each sand screen assembly having a wireless adjustable electronic flow control node disposed along the sand screen base pipe to control flow of a gravel packing slurry from the base pipe into the wellbore annulus. Each electronic flow control node includes a valve that can be adjusted by an electric actuator powered by a power harvesting mechanism disposed in a flow path of the completion assembly. A wireless transmitter receives a control signal to control the electric actuator. The control signal may be transmitted sequentially from a distal most sand screen assembly to a proximal sand screen assembly in order to sequentially build the gravel pack. |
| US11401778B1 |
Methods and systems for casing disconnect system with liner top testing
Interventionless testing casing within a wellbore to determine a location where the casing is leaking. Testing systems include a casing disconnect tool to receive an object, such as a ball, allowing for pressurizing to test a backside between new casing associated with the disconnect tool and older casing associated with a cased hole or open hole. |
| US11401777B2 |
Through tubing P and A with two-material plugs
Methods of plugging a hydrocarbon well by a through-tubing technique wherein the tubing is left in place, and only very short (<5 m) sections are cut, milled, perforated, ruptured and expanded, or combinations thereof. A blocking device is sent downhole if needed to block a bottom of the plug section, and resin dropped onto the blocking device to make a first plug, then cement is deployed onto said first plug to form a second plug. Therefore, the final interval is plugged with a two material binary plug. Once completed, and both primary and secondary barriers are in place, the well can be closed and the Christmas tree removed. A rock-to-rock plug can be set by removing or partially removing the tubular and the outer casing, or just inner casing/tubulars can be removed if the exterior cement and casing are of sufficient quality. |
| US11401775B2 |
High strength connection for composite sleeve and composite mandrel and related methods
A composite downhole tool, such as a frac plug or a bridge plug, having a composite sleeve located around a composite mandrel and defining an overlapping or overlapped section between the two. One or more shear pins with each shear pin having a pin hole is provided with the downhole tool to reinforce the downhole tool from interlaminate shear. The one or more shear pins can further be reinforced from rotation by overlapping at least part of the one or more pins with a lip of a ring. |
| US11401773B1 |
Compensating changes in length of a wellbore string
A wellbore assembly includes a first tube and a second tube. The first tube is disposed within a wellbore and has a first end fixed with respect to a wall of the wellbore. The second tube is coupled to a second end of the first tube. The second tube has a third end opposite the coupling and fixed with respect to the wall of the wellbore. The first tube includes a portion of reduced or increased diameter residing between the first end and the second end. The portion of reduced or increased diameter defines an internal diameter that changes, with the first tube under a compression load, to decrease a length of the first tube. The internal diameter changes, with the first tube under a tensile load, to increase a length of the first tube to accommodate changes in length of the first tube or the second tube or both. |
| US11401771B2 |
Rotating control device systems and methods
A rotating control device (RCD) system includes a first RCD comprising a first body and a first sealing element within the first body and a second RCD comprising a second body a second sealing element within the second body. The RCD system also includes a controller that is configured to control a first actuator assembly to adjust the first RCD to a withdrawn configuration in which the first sealing element is not positioned to seal about a tubular and to control a second actuator assembly to maintain the second RCD in a sealing configuration in which the second sealing element is positioned to seal about the tubular while the first RCD is in the withdrawn configuration. |
| US11401768B2 |
Method of and system for connecting to a tubing hanger
A method of connecting a tubing hanger mounted in a subsea wellhead to equipment which is external to the tubing hanger. The method includes securing the tubing hanger to an end of a drill string using a tubing hanger running tool assembly, lowering the drill string from a drilling rig so as to land the tubing hanger on or in the wellhead, running an umbilical from the sea surface to the wellhead, and connecting the umbilical to at least one conduit in the tubing hanger via the tubing hanger running tool assembly. The umbilical is unconnected to the drill string other than via the tubing hanger running tool assembly. |
| US11401764B2 |
Downhole swivel tool
The invention provides a swivel tool for use in a wellbore. The tool comprises a tool body and a mandrel which is axially moveable relative to the tool body. The tool also comprises a lock member moveable between a first condition in which the mandrel is rotatably movable relative to tool body and a second condition in which the mandrel and a tool body are rotationally coupled. The lock member is configured to move between the first condition and second condition in response to a mechanical axial force and rotational force on the mandrel. |
| US11401763B2 |
Cutting a sidetrack window in a cased wellbore
A sidetrack window is cut in a cased wellbore by disposing a sidetracking assembly within the cased wellbore. A first ball is deployed into a drill string of the sidetracking assembly. The first ball leaves the drill string and lands on a ball seat of a cement retainer to block fluid outlet of the cement retainer. Then, the cement retainer is set and a second fluid outlet of the cement retainer is exposed. Cement is flowed through the drill string to the portion of the cased wellbore downstream of the cement retainer to plug the portion of the wellbore. The whipstock assembly is separated from the cement retainer. A second ball is deployed inside the drill string to land on the seat of the whipstock assembly to block a fluid outlet of the whipstock assembly. The whipstock assembly is anchored in the cased wellbore and the milling system is actuated to begin cutting the sidetrack window. |
| US11401759B2 |
Horizontal directional drilling system and method of operating
A horizontal directional drilling system is provided. The system includes a first tank for containing fluid therein, a second tank for containing fluid therein, a manifold comprising at least one inlet port and at least one outlet port, a feed line extending from the manifold, and a valve system configured to control fluid flow to and from the manifold. The valve system is configured to provide selective flow communication to the manifold from one of the first tank or the second tank through the at least one inlet port, and is configured to provide selective flow communication from the manifold to one of the first tank, the second tank, or the feed line through the at least one outlet port. |
| US11401755B2 |
Ground drilling device, transfer device of a ground drilling device, control of a transfer device of a ground drilling device and method for control of a ground drilling device
A ground drilling device having a drilling carriage, which defines a drill string axis, a rod magazine for a plurality of different rod sections and a transfer device for the transfer of a rod section between the rod magazine and the drill string axis, wherein the rod magazine is adapted for a horizontal arrangement of the rod sections in adjacent compartments for access by means of the transfer device from above, wherein a control unit of the transfer device is designed to select a particular rod section in the rod magazine depending on at least one borehole parameter and/or at least one rod section parameter. |
| US11401749B2 |
Cutting element with reduced friction
A cutting element comprises a cylindrical substrate, a table bonded to the substrate, a working surface on the top of the table, and a plurality of dimples on the working surface. The table is made of super-abrasive material. The super-abrasive material can be PCD. Surface patterns of the table can reduce contact friction between the rock and the cutting element. Therefore, heat on the table can be reduced and thermal damage to the table is decreased. This results in improved cutting element service life. |
| US11401747B2 |
Motor assisted revolving door system and method with multiple sensors
A control system for a door includes: a controller; a door motor configured to be operatively connected to the controller; an object sensor configured to be operatively connected to the controller and to detect a presence of an object; and an operation sensor configured to be operatively connected to the controller and to detect movement of a door, and wherein the controller is configured to send a operation signal to the door motor to cause the door motor to operate when the controller detects both: a signal from the object sensor indicating that the operation sensor has detected the presence of and object; and a signal from the operation sensor indicating that the operation sensor has detected movement. |
| US11401742B1 |
Load restraining apparatus for performing a controlled fall of unsecured freight
Described are a load restraining apparatus that can facilitate performing controlled falls of unsecured freight that may be leaning against swing doors of a trailer. The described load restraining apparatus includes a first member, a second member, a third member, and a linking assembly that facilitates performing a controlled fall of unsecured freight leaning on swing doors of a trailer from a safe distance. |
| US11401738B1 |
Merchandise anti-theft device with an electromechanical release mechanism
An anti-theft device for securing an article of merchandise against unauthorized removal from a display counter. The anti-theft device includes a plurality of arms configured to immobilize the article of merchandise relative to a tray. At least one arm is operated by an electromechanical release mechanism between closed and opened positions. When the electromechanically actuated arm is in the closed position, the article of merchandise is immobilized relative to the tray. When the electromechanically actuated arm is transitioned into the open position, the article of merchandise can be removed from the tray. The anti-theft device may include a locking mechanism configured to transition between a locked configuration, in which the arms are immobilized relative to the tray, and an unlocked configuration, in which the arms can be extended or retracted relative to the tray. |
| US11401737B2 |
Square computer lock
A square computer lock includes a square housing, and a lock core, a lock tongue, an unlocking button, a locking button and a latch arranged in the square housing. An insertion hole is formed on the rear side of the square housing. A row of plate tumblers are arranged in a lock core lock hole. A plate tumbler spring is arranged below each plate tumbler. Positioning posts are formed on a lateral surface of the latch. A wedge-shaped plate is formed at a lower end of the unlocking button. An unlocking spring is arranged between the wedge-shaped plate and the bottom of the square housing. The locking button is arranged in the square housing in a front-back movable manner. An upper end of the locking button penetrates in a locking hole in a front-back movable manner. |
| US11401736B2 |
Systems and methods for controlling a lock
A system includes a storage device storing a set of instructions and at least one processor in communication with the storage device. When executing the instructions, the at least one processor is configured to cause the system to obtain a request to close a lock such that the lock is in a locked status, and actuate a control device to cause a locking mechanism of the lock to move toward a first position. The at least one processor may also cause the system to determine whether operation information of the lock satisfies a condition relating to an operation of the lock, and actuate the control device to cause the locking mechanism to move to the first position or a second position based on a result of the determination as to whether the operation information of the lock satisfies the condition. |
| US11401729B2 |
Self inflating canopy tent
A portable, inflatable canopy is disclosed having an inflatable support system including interconnected, intersecting arches over which a tarp is secured to form a dome structure that can be temporarily anchored to the ground as a respite for sun, heat, wind, and rain. The inflatable support system works with a battery powered fan to inflate the canopy quickly without outside power requirements, and the fan can also be used to quickly deflate the canopy. The use of all soft materials allows the canopy to be folded or rolled when deflated into a compact storage configuration without poles, rigid supports, or other cumbersome elements. |
| US11401728B1 |
Solar umbrella
The solar umbrella forms a temporary shelter. The solar umbrella creates a protected space for use during outdoor activities. The solar umbrella incorporates an umbrella structure, a control circuit, and a cooling structure. The cooling structure and the control circuit attach to the umbrella structure. The umbrella structure forms the protected space. The cooling structure generates an air flow within the protected space. The control circuit provides electric energy used to operate: a) the cooling structure; and, b) externally provided electrically powered devices. |
| US11401726B2 |
Base isolation unit and base isolation apparatus
A base isolation unit comprises a first connector and a second connector disposed in a direction of base isolation with a predetermined distance therebetween, and a movement regulator provided between the first connector and the second connector and receiving an external force in the direction of base isolation. The movement regulator includes a first casing having one end connected to the first connector, a second casing having one end connected to the second connector, a first damping device accommodated inside the first casing, a second damping device accommodated inside the second casing, a vibration damper provided between the first casing and the second casing, and a coupling member coupling the first damping device and the second damping device together. The first damping device and the second damping device each have a cylinder, a compressible fluid and a piston. |
| US11401724B2 |
Below grade fluid containment
Below grade fluid containment structures, which may include a foam floor and a foam wall extending upward from the floor, the foam wall being formed from foam panels. A granular material is provided for reducing hydraulic soil pressure against an exterior face of the foam wall that would otherwise be exerted by the soil, if the soil were allowed to be positioned up against the foam, particularly the foam wall. The well-draining granular material may be gravel, crushed stone, or the like, which provides better drainage as compared to the surrounding soil material. The interior face of the foam is coated with an elastomeric abrasion resistant impact resistant polymeric coating that seals the below grade interior space defined between the floor and the wall in a seamless water-tight configuration. |
| US11401720B2 |
Flexible corner trim product
A trim piece for sealing a work surface including a body having a first side, a second side, and a span disposed between the first side and the second side, wherein the first side and the second side are joined at a junction defining an angle between the first side and the second side of between 80 degrees and 100 degrees, a topcap is affixed to the span of the body, wherein the topcap includes a left side having a first wing and a right side having a second wing, an adhesive is bonded to the first side of the body and an aperture is disposed within the body. |
| US11401718B2 |
Bright coloured surface layer
A building panel including a carrier, and a surface layer arranged on the carrier, wherein the surface layer includes a mix of refined fibres and a resin, wherein the weight ratio of resin to refined fibres is higher than about 120%, wherein the surface layer is applied as a dry powder layer. |
| US11401714B2 |
Retaining wall containing wall blocks with weight bearing pads
A retaining wall having a plurality of courses of retaining wall blocks including a first upper course and a second lower course. Each retaining wall block has opposed front and rear faces, opposed first and second side surfaces, and opposed and substantially parallel upper and lower surfaces, and at least one weight bearing pad extends from one of the upper and lower surfaces. The at least one weight bearing pad extends substantially from the rear face to the front face of the block. The weight bearing pads are the only areas of contact between the blocks in the first upper course and the blocks in the second lower course. |
| US11401710B2 |
Polymer pre-laid waterproof rolling material
A polymer pre-laid waterproof rolling material, including a polymer base material layer, a pressure-sensitive adhesive layer on the polymer base material layer, and a sand anti-sticking layer on the pressure-sensitive adhesive layer; the pressure-sensitive adhesive layer includes: 25-35 parts by mass of a styrene-isoprene-styrene block copolymer; 32-38 parts by mass of a C5 petroleum resin; 5-12 parts by mass of a 145 pentaerythritol modified rosin resin; 25-32 parts by mass of a naphthenic oil; 0.3 parts by mass of an antioxidant; and 0.5 parts by mass of a UV light stabilizer; the C5 petroleum resin has a softening point of 95-105° C. and a color number of less than 4; the naphthenic oil has a kinematic viscosity of 9-11 mm2 at 100° C. and a density of 0.8950 g/cm3-0.9100 g/cm3 at 20° C. The pressure-sensitive adhesive layer has a stronger bonding effect with sintered sand and further improves the bonding effect with concrete. |
| US11401709B2 |
Brick tie gap connector
A sheet metal connector is provided for connecting a brick wall to a second structural member, the connector is received in the mortar joint of the brick wall and is connected to second structural member. The connector is provided with zones of controlled bending and controlled stiffness to allow for controlled bending of the connector in the field. |
| US11401706B2 |
Stepped basin sink
An example sink having a stepped sink basin is provided. The sink includes a front wall, a rear wall, a first side wall and a second side wall. The sink also includes a stepped sink basin that includes a raised portion and a lower basin portion. The raised portion of the basin provides a front ledge extending from the front wall toward the rear wall, and extending between the first and second side walls below a top plane of the sink. The lower portion of the basin extends from a bottom of the rear wall toward the front wall, the lower basin defining a drain. The sink still further includes a surface connecting the front ledge to the lower basin. |
| US11401703B1 |
Hand washing station for galley monument
A galley structure incorporating a handwashing station is disclosed. The galley structure may be a monument having a lower portion adjacent to the galley floor and an upper portion above the lower portion. A compartment set into the upper portion includes an upper surface, sidewalls, and sink pan with drain at the bottom. A faucet is set into the upper surface, oriented downward and including an aerator for aerating or misting the stream of water (from an aircraft water supply) dispensed by the faucet. The faucet may be activated by a switch directly above the compartment so that a crewmember may wash their hands under the faucet. A perforated plate set above the sink pan prevents the water from splashing out of the sink pan. The interior of the handwashing station may also provide an extension of the adjacent workdeck surface when the faucet and sink are not in use. |
| US11401696B2 |
Work machine
An operator of a hydraulic excavator and a worker working outside of the hydraulic excavator carry a worker tag that sends a radio-wave signal including a magnetic field ID, a tag ID, and positional information obtained by a GNSS receiving section in case the worker tag receives a magnetic field signal generated by a magnetic field detecting device mounted on the hydraulic excavator. Based on positional information of the hydraulic excavator that is obtained from an GNSS receiving device and positional information of the worker tag, the position of the worker tag is calculated. In case the worker tag is detected in a proximity notification target area, a notification command is generated for notifying the operator of the hydraulic excavator of the detection of the worker tag, and output to a notification device in the cabin of the hydraulic excavator. Thus, a worker who is in proximity to the work machine is accurately detected, and the operator is prevented from being excessively alerted. |
| US11401694B2 |
Method of controlling motor grader, motor grader, and work management system for motor grader
A motor grader includes a vehicular body, a blade, a front wheel located in front of the blade, two rear wheels located in the rear of the blade, a first sensor which detects a position of the vehicular body as first sensor information, a second sensor which detects an inclination of the vehicular body as second sensor information, a first swing member which rotatably supports both of the two rear wheels arranged in the front and rear relation and is swingably supported by the vehicular body, and a third sensor which detects an angle of swing of the first swing member with respect to the vehicular body as third sensor information. A method of controlling a motor grader includes obtaining the first to third sensor information and calculating positions of the rear wheels based on the obtained first to third sensor information. |
| US11401692B2 |
Intelligent ride control
A hydraulic system includes a hydraulic mechanism that includes a first and a second chamber. The hydraulic system includes a control valve fluidly connected to the first chamber and a pressure sensor that is configured to measure the fluid pressure in the first chamber. The hydraulic system includes a processing unit connected to the control valve. The processing unit is configured to control a hydraulic fluid flow rate to and from the first chamber of the hydraulic mechanism via the control valve to provide a shock absorption response. The hydraulic fluid flow rate is based at least in part on a pressure measurement received from the pressure sensor. The shock absorption response is based on a simulated hydraulic accumulator. |
| US11401691B2 |
Hydraulic arrangement
The invention relates to a method (100) of operating an actuator arrangement including at least two types of actuators (6, 7, 11, 12, 30, 34) effectuating different types of movement of a connected device (10, 32) to be actuated, where a change of attitude of the connected device (10, 32) has an influence on the position of at least a defined part (13, 14) of the connected device (10, 32). Different types of actuators (6, 7, 11, 12, 30, 34) are actuated in an automated way to at least partly compensate for the change of position of the defined part (13, 14) of the connected device (10, 32) when changing the attitude of the connected device (10, 32), at least for a certain range of movements. |
| US11401687B2 |
Surface support assembly for supporting a working machine
The invention relates to a support assembly for supporting a vehicle including an articulated interconnecting assembly pivotable connectable to a lower part of the working machine; a telescopic arrangement connected to said articulated interconnecting assembly and including a guiding frame and a telescopic extension member displaceable arranged relative the guiding frame; a foot connected to said telescopic extension member; an articulated linkage arrangement having a linkage arm connectable at one end to a linear actuator for effecting a movement of said articulated interconnecting arrangement and at a second end pivotable connected to one end of a connecting rod, said connecting rod being pivotable connected to the telescopic extension member at a second end, wherein said telescopic extension member includes a channel for accommodating a portion of the connecting rod. |
| US11401679B2 |
Combination standard and corner segmental retaining wall block with integral vertical interlock system
A retaining wall block includes a block body having: a top and a bottom spaced from the top by a height H; a front and a rear spaced from the front by a depth D; and a first side and a second side spaced from the first side by a length L; a vertical interlock system comprising: a female component comprising a groove in the bottom of the block body, the groove being spaced from the front by a depth FB and having a depth G, the groove extending from a distance F from the first side through to the second side, wherein F |
| US11401678B1 |
Flood protection system
An improved flood protection system for a home or other building. The flood protection system includes a waterproof membrane that is positioned on the exterior of the building. The membrane has first and second horizontal edges. A sealant is applied to the foundation between the first horizontal edge of the membrane and the foundation of the building. A termination bar mechanically attaches to the foundation, pressing the first horizontal edge of the membrane and the sealant toward the foundation to create a watertight seal. |
| US11401674B2 |
Pile-bottom grouting cavity and method for using same, and cast-in-place pile body and method for constructing same
Disclosed are a pile-bottom grouting cavity and a method for using same, and a cast-in-place pile body and a method for constructing same. The pile-bottom grouting cavity comprises: a grouting capsule, having an expansion state in which the grouting capsule is filled with grout to bear a pile body, and a contracted state in which the grouting capsule is hollow; a grouting pipe in communication with an inner cavity of the grouting capsule to grout the grouting capsule; and a fixing plate, with the grouting capsule being arranged on the fixing plate, and the fixing plate being provided with a through hole that is in communication with the bottom of an accommodation hole, such that slurry and/or sediment in the accommodation hole pass through the fixing plate. The aim thereof is to solve the problems in the prior art of hole wall collapse and excessive sediment that seriously affect the quality of construction in a grouting pile with a grouting capsule during the construction of a cast-in-place bored pile. |
| US11401671B2 |
Three-stage snow thrower
A three-stage snow thrower having a housing, a power supply operatively connected to said housing, a longitudinal drive shaft extending from the power supply into the housing, and a lateral drive shaft extending rotatably attached to opposing side walls of the housing and being meshingly engaged with the longitudinal drive shaft within a gear assembly. The power supply drives the longitudinal drive shaft, thereby causing the longitudinal drive shaft to rotate, and at least a portion of such rotation is transferred to the lateral drive via a gear assembly. The first stage assembly includes a plurality of augers attached to the lateral drive shaft, wherein the first stage assembly pushes loosened snow axially toward the gear assembly. The second stage assembly includes at least one auger attached to the longitudinal drive shaft, wherein the second stage assembly pushes the snow from the first stage assembly axially rearward in a transverse manner relative to the first stage assembly. The third stage assembly includes an impeller that rotates to throw the snow from the second stage assembly through a chute attached to the housing to expel the snow from the housing. |
| US11401662B2 |
Fibrous structures comprising a surfactant
Fibrous structures, for example sanitary tissue products, such as toilet tissue, having one or more neat surfactant components on at least one exterior surface, methods for making same, and methods for removing fecal matter from a user's skin are provided. |
| US11401660B2 |
Broke composition of matter
Broke pulp in a paper making process is obtained by pulping broke, and the broke pulp is made of fibrillated cellulose fibers and cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, or a cut length of less than 6 mm, or crimped, or non-round with a DPF of less than 3. The broke pulp can be added to the stock preparation zone of a wet laid manufacturing facility and fed through a refiner. |
| US11401659B2 |
Process to produce a paper article comprising cellulose fibers and a staple fiber
The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. |
| US11401656B2 |
Two-layer multi-strand cords having very low, low and medium moduli
A two-layer multi-strand cord (60) comprises an internal layer (CI) of the cord made up of J>1 internal strands (TI) and an external layer (CE) of the cord made up of L>1 external strands (TE). The cord satisfies the relationship 100≤MC≤175, where MC=(J×MI+L×ME)/(J+L); MI=200×cos4(α)×[Q×(D1/2)2×cos4(β)+N×(D2/2)2×cos4(γ)]/[Q×(D1/2)2+N×(D2/2)2]; and ME=200×cos4(α′)×[Q′×(D1′/2)2×cos4(β′)+N′×(D2′/2)2×cos4(γ′)]/[Q′×(D1′/2)2+N′×(D2′/2)2], where D1, D1′, D2, D2′ are in mm, α and α′ are the helix angle of each internal and external strand (TI), β and β′ are the helix angle of each internal thread (F1, F1′), and γ and γ′ are the helix angle of each external thread (F2, F2′). |
| US11401654B2 |
Apparatus and methods for pre-treating swabs prior to collection of specimens to reduce false positive detections
Methods and apparatus for pre-treating swabs prior to collection of specimens to reduce false positive detections by immersing a swab in a liquid chemical pre-treating agent for a treatment period of time. Then the swab is removed and circulated in a rinse agent. The pre-treating agent may be an oxidizing agent, a reducing agent, a bleaching agent (e.g. sodium hypochlorite solution) or a fluorescence suppressing dye (such as Evans blue, Trypan blue, or black dye). |
| US11401646B2 |
Laundry treating appliance with laundry deflector
A laundry treating appliance may include a front panel with an opening, a door selectively opening and closing the front panel opening, a tub with an opening at least partially aligned with the front panel opening, and a bellows extending between the front panel and the tub at their respective openings. A deflector mounted to the tub extends towards the door and overlies at least a portion of the bellows. |
| US11401643B2 |
Yarn planner for tufted patterns and creeling
A tufting machine interface or simulator is provided with yarn planning software enabling the optimization of winding yarn cones for particular patterns and production runs to minimize waste yarn and labor attendant to rewinds. |
| US11401640B2 |
Forming belt for shaped nonwoven
A forming belt for use in making a nonwoven substrate. The forming belt includes a first surface defining a plane of the first surface and an axis parallel to a longitudinal direction corresponding to a machine direction when in use. A plurality of discrete belt patterns can be ordered in sequential relationship with respect to the longitudinal direction. At least a majority of the plurality of discrete belt patterns can include a discrete belt pattern overall area, a first forming zone having a first pattern of three-dimensional raised elements extending outwardly from the plane of the first surface and a second forming zone having a second pattern of three-dimensional raised elements extending outwardly from the plane of the first surface. The first forming zone can have a first air permeability value and the second forming zone can have a second air permeability value. The first air permeability value can be different from the second air permeability value. |
| US11401638B2 |
Method of knitting a warp structure on a flat knitting machine
System and method of manufacturing a unitary construction of a weft knit article with one or more warp insert in an integrated knitting process by using a weft knit machine. The unitary construction comprises one or more yarn materials which are incorporated into one or more weft and warp stitch structures. The knitting machine is equipped with a warp feeder assembly, including a weft knit warp feeder, a warp knitting guide needle block operable to hold a plurality of warp strands, a strand guide bar configured to guide the plurality of warp strands to the weft knit warp feeder, and a cam box. The cam box includes at least a weft stitch cam, a weft guard cam, a warp stitch cam, and a warp guard cam. |
| US11401635B2 |
Device and a method for sensing breakage or end of warp yarn for a fabric weaving loom
A warp breakage/end sensing system and device are configured to detect an end of a warp yarn on a circular weaving machine. A mechanism causes a notification signal to be sent to the loom operator in the situation where a yarn breakage is detected. A drop wire loses its elevation and falls from its normal operative position. The drop causes a first element to rotate and come in contact (physical or non-physical) with a second element, thereby completing an electric circuit and sending a yarn breakage signal to the operator. Upon restoration of the yarn, the first element restores to its normal working position. In the case of a non-physical contact, the first sensing element enters the triggering region of the second sensing element thus causing a signal to be sent. |
| US11401634B2 |
Method, apparatus, and system for making string art
An apparatus for making string art. The apparatus comprising a base structure having a surface with a plurality of pre-formed protruding members arranged in a predetermined pattern. The plurality of pre-formed protruding members has a top end configured to hold a string. |
| US11401633B2 |
Seamless double-woven fabric for filling down
A seamless double-woven fabric for filling down includes a first fabric layer including first warps and first wefts, a second fabric layer including second warps and second wefts, and a coupling part to partition a down filling part formed between the first and second fabric layers into down filling spaces. The first warp and the second warp are formed so as to be crossed to each other one time or at least two times through a coupling weft. If the number of the coupling wefts is 2n, wherein n is an integer of 1 or more, the first and second fabric layers are arranged to be crossed about the coupling part. If the number of the coupling wefts is 2n+1, wherein n is an integer of 0 or more, the first and second fabric layers are arranged not to be crossed. |
| US11401631B2 |
Impact resistant, wrappable multilayered woven sleeve and method of construction thereof
A wrappable, woven sleeve includes a wall having opposite edges extending lengthwise between opposite ends, with the opposite edges being wrappable into overlapping relation to bound a central cavity. The wall has a plurality of layers extending from one edge to the opposite edge and from one end to the opposite end in overlying relation with one another. Each of the layers include warp yarns and fill yarns woven together. The wrapped wall has a radially outermost layer and a radially innermost layer. The radially outermost layer has at least one of a first tightness and/or first width and the radially innermost layer has at least one of a second tightness and/or second width, with the first tightness and first width being greater than the second tightness and second width. |
| US11401630B2 |
Method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic filaments
A method for spreading a tow of textile non-braided filaments, preferably chemical or inorganic fibres comprises providing a tow of textile non-braided filaments extending along its own main direction and having a section transverse to the main direction with a predetermined thickness and a predetermined width, feeding the tow along a travel path and spreading the tow in order to increase its width and reduce its thickness, defining a spread tow. The step of spreading the tow includes immersing the tow in a bath and generating in the bath a sequence of transverse waves crossing the tow transversely to the main direction in order to separate and place the individual filaments side by side, thereby spreading the tow, wherein the tow entering the bath and/or the spread tow extracted from the bath is/are unsized. |
| US11401627B2 |
Method for preparing quantum rod/polymer fiber membrane by using electrospinning technique
Disclosed is a method for preparing a quantum rod/polymer fiber membrane by using electrospinning technique. The method comprises the following steps: (1) preparing a quantum rod solution; (2) preparing a polymer solution, and adding the quantum rod solution obtained in step (1) into the polymer solution so as to form an electrospinning precursor solution with a volume concentration of the quantum rods of 5%-80%; and (3) adding the electrospinning precursor solution into an electrospinning device, regulating the voltage of a generator and the receiving distance, and then performing electrospinning to prepare the quantum rod/polymer fiber membrane. By adjusting the concentration of the quantum rod solution and parameters in the electrospinning process, the method realizes directional arrangements of the quantum rods in the electrospinning process, thereby obtaining the quantum rod/polymer fiber membrane with high degree of polarization performance. |
| US11401624B2 |
Plating apparatus and method for electroplating wafer
A plating apparatus for electroplating a wafer includes a housing defining a plating chamber for housing a plating solution. A voltage source of the apparatus has a first terminal having a first polarity and a second terminal having a second polarity different than the first polarity. The first terminal is electrically coupled to the wafer. An anode is within the plating chamber, and the second terminal is electrically coupled to the anode. A membrane support is within the plating chamber and over the anode. The membrane support defines apertures, wherein in a first zone of the membrane support a first aperture-area to surface-area ratio is a first ratio, and in a second zone of the membrane support a second aperture-area to surface-area ratio is a second ratio, different than the first ratio. |
| US11401618B2 |
Cobalt filling of interconnects
Compositions and methods of using such compositions for electroplating cobalt onto semiconductor base structures comprising submicron-sized electrical interconnect features are provided herein. The interconnect features are metallized by contacting the semiconductor base structure with an electrolytic composition comprising a source of cobalt ions, a suppressor, a buffer, and one or more of a depolarizing compound and a uniformity enhancer. Electrical current is supplied to the electrolytic composition to deposit cobalt onto the base structure and fill the submicron-sized features with cobalt. The method presented herein is useful for superfilling interconnect features. |
| US11401611B2 |
Thermal barrier coatings with CMAS resistance
A coating on a substrate is disclosed having layers including yttrium aluminum garnet (YAG) and yttrium aluminum perovskite (YAP). |
| US11401609B2 |
Film forming method and film forming system
A film forming method includes forming a cancel layer on a substrate, which is disposed within a processing container and on which a base film is formed, in a pressure-reduced atmosphere, the cancel layer cancelling orientation of the base film, forming an initial metal film by supplying a metal material gas and a boron-containing gas to the substrate on which the cancel layer is formed, and forming a main metal film on the substrate on which the initial metal film is formed. |
| US11401606B2 |
Coating nozzle, coating device and corresponding coating method
The present disclosure proposes a coating nozzle, a coating device and a corresponding coating method. The nozzle includes: a first reactant spout configured to spray a first reactant; a second reactant spout configured to spray a second reactant; and a first air curtain spout configured to spray shielding gas, so that the sprayed shielding gas forms an air curtain which isolates the first reactant from the second reactant. The device includes: one or more coating nozzles described above; and a transport mechanism configured to transport an object to be coated, so that the object to be coated sequentially passes through a first reaction region of the first reactant and a second reaction region of the second reactant for each of the one or more nozzles. |
| US11401604B2 |
Film formation method
A film formation method is provided with a step for disposing a non-electroconductive long thin tube 102 in a chamber 101 in which the internal pressure thereof is adjustable, generating a plasma inside the long thin tube 102 in a state in which a starting material gas including a hydrocarbon is supplied, and forming a diamond-like carbon film on an inner wall surface of the long thin tube 102. The long thin tube 102 is disposed in the chamber 101 in a state in which a discharge electrode 125 is disposed in one end part of the long thin tube 102 and the other end part is open. An alternating-current bias is intermittently applied between the discharge electrode 125 and a counter electrode 126 provided so as to be separated from the long thin tube 102. |
| US11401603B2 |
Two part 3D metal printhead assembly method of manufacture
3D metal printhead assembly method of manufacture that uses metal electrodeposition to construct parts. The printhead may be constructed by depositing layers on top of a backplane that contains control and power circuits. Deposited layers may include insulating layers and an anode layer that contain deposition anodes that are in contact with the electrolyte to drive electrodeposition. Insulating layers may for example be constructed of silicon nitride or silicon dioxide; the anode layer may contain an insoluble conductive material such as platinum group metals and their associated oxides, highly doped semiconducting materials, and carbon based conductors. The anode layer may be deposited using chemical vapor deposition or physical vapor deposition. Alternatively in one or more embodiments the printhead may be constructed by manufacturing a separate anode plane component, and then bonding the anode plane to the backplane. |
| US11401594B2 |
Hot-rolled steel sheet for coiled tubing and method for manufacturing the same
Provided are a hot-rolled steel sheet for coiled tubing and a method for manufacturing the steel sheet. The steel sheet has a yield strength of 480 MPa or more, a tensile strength of 600 MPa or more, a yield-strength difference (ΔYS) of 100 MPa or more, where the yield-strength difference is defined as a difference in yield strength between before and after a prestrain-heat treatment performed for simulation of a tube-making process and a stress-relief annealing heat treatment which are currently implemented, and a yield strength of 620 MPa or more after the prestrain-heat treatment. |
| US11401592B2 |
Liner alloy, steel element and method
Disclosed is a liner alloy and a steel element with a liner alloy element. The liner alloy comprises from 0.5 to 3 wt. % of C, from 10 to 30 wt. % of Cr, less than 2 wt. % of B, less than 4 wt. % of Ti, less than 4 wt. % of Nb, less than 1 wt. % of V, less than 1.5 wt. % of W, from 0.5 to 2 wt. % of Mo, from 0.5 to 2 wt. % of Mn, less than 1 wt. % of Si, less than 0.5 wt. % of Al, wherein the wt. % is based on total weight of the liner alloy with remainder being Fe and inevitable impurities. |
| US11401591B2 |
Method for selecting rail steel and wheel steel
A method for selecting a rail steel and a wheel steel comprising: selecting a rail steel and a wheel steel to be used as a rail and a wheel on an actual track, respectively, the rail steel and the wheel steel having a specific chemical composition, such that the rail comprises a head portion having a yield strength YSR of 830 MPa or more, the wheel comprises a rim portion having a yield strength YSW of 580 MPa or more, and a ratio YSR/YSW of the yield strength YSR at the head portion of the rail to the yield strength YSW at the rim portion of the wheel falls within a range of: 0.85≤YSR/YSW≤1.95 (1). |
| US11401589B2 |
Multilayer electrical steel sheet
Provided is a multilayer electrical steel sheet having both low high-frequency iron loss and high magnetic flux density. The multilayer electrical steel sheet has an inner layer and surface layers provided on both sides of the inner layer, in which the surface layers and the inner layer have a predetermined chemical composition, the multilayer electrical steel sheet having: ΔSi of 0.5 mass % to 4.0 mass %; ΔAl of 0.05 mass % or less; a ratio of t1 to t represented by t1/t of from 0.10 to 0.70; a magnetic flux density B10 of 1.3 T or more; and a ratio of B1 to B10 represented by B1/B10 of 0.45 or more; and an iron loss W10/1k in W/kg and the sheet thickness t in mm satisfy the following formula (1): W10/1k≤15+140×t (1). |
| US11401588B2 |
Additive manufacturing method of lead-free environmentally-friendly high-strength brass alloy
The present invention discloses an additive manufacturing method of lead-free environmentally-friendly high-strength brass alloys, which mainly comprises five steps of gas atomization milling, model building, forming chamber preparation, pre-spreading powder and selective laser forming. Wherein the lead-free environmentally-friendly high-strength brass alloy comprises the following elements: Zn 5.5-40 wt. %, Si 0.5-4 wt. %, trace elements Al and Ti totally 0-0.5 wt. %, and Cu for the balance. Its microstructure includes micron-sized cell crystals and dendrites. By the above method, it is possible to obtain a nearly fully compact high-strength brass alloy and nearly net-formed complex parts thereof. The formed high-strength brass alloy has beautiful color and excellent physical properties such as excellent electrical conductivity, thermal conductivity, corrosion resistance and machinability. It can be widely used in sanitary ware, hardware decoration, radiators, electronic communication, low temperature piping, pressure equipment and other machinery manufacturing fields. |
| US11401578B2 |
Extraction methods from refractory ores
A method for extracting and separating Gold, Silver, Copper, Zinc and/or Lead from an Arsenic-containing ore, concentrate or tailings characterized in that the extraction is carried by roasting in the presence of a calcium-containing material and at least one of an alkali metal halide and alkaline metal halide. In the method, Arsenic remains immobilized in the extraction residue. |
| US11401577B2 |
Manufacturing process of hot press formed aluminized steel parts
A manufacturing process of a press hardened coated part including providing a furnace containing N zones, each furnace zone being respectively heated at a setting temperature Θ1F, Θ2F, . . . ΘiF, . . . , ΘNF, including: providing a steel sheet with thickness th between 0.5 and 5 mm, the steel sheet covered by an aluminium alloy precoating with a thickness between 15 and 50 μm, the emissivity coefficient being equal to 0.15(1+α), α being between 0 and 2.4, then cutting the steel sheet to obtain a precoated steel blank, then placing the precoated steel blank in furnace zone 1 for a duration t1 between 5 and 600 s, wherein Θ1F and t1 are such that: Θ1Fmax>Θ1F>Θ1Fmin then transferring the precoated steel blank in the furnace zone 2 heated at a setting temperature Θ2F=Θ1B and maintaining isothermally the precoated steel blank for a duration t2, then transferring the precoated steel blank in further zones (3, . . . i, . . . , N) of the furnace, so to reach a maximum blank temperature ΘMB between 850° C. and 950° C., the average heating rate Va of the blank between Θ2F and ΘMB being between 5 and 500° C./s, then hot forming the heated steel blank so as to obtain a part, then cooling the part to obtain martensite or bainite. |
| US11401575B2 |
Sealing device
A sealing device is installed in heating treatment equipment through which a steel strip passes, the device including a rotary damper which is placed above the steel strip so as to be in contact with the steel strip, and a roll which is placed below the steel strip so that the roll opposes the rotary damper to form a pair consisting of the rotary damper and the roll opposing each other, the steel strip passing through a gap, which is formed between the rotary damper and the roll opposing each other, in which two pairs each of which is the pair consisting of the rotary damper and the roll opposing each other are arranged in tandem in a moving direction of the steel strip in the heating treatment equipment, and an inert gas is fed into a space defined by the two pairs arranged in tandem. |
| US11401567B2 |
Manufacturing method of steel sheet
A manufacturing method of a steel sheet includes: a step of performing continuous casting of molten steel having a Si content of 0.4 mass % to 3.0 mass % to obtain a slab; a step of performing hot rolling of the slab to obtain a hot-rolled steel sheet; a step of performing cold rolling of the hot-rolled steel sheet to obtain a cold-rolled steel sheet; a step of performing cold-rolled sheet annealing of the cold-rolled steel sheet; a step of performing pickling after the cold-rolled sheet annealing; a step of performing water washing after the pickling; and a step of performing drying after the water washing. A dew point is set to −35° C. or lower in the cold-rolled sheet annealing, an electrical conductivity of a rinse water to be used in the water washing is set to 5.0 mS/m or less, a water-washing time is set to 15 seconds or less in the water washing, and the drying is started within 60 seconds from an end of the water washing. |
| US11401566B2 |
High strength and high toughness stainless steel and processing method thereof
A stainless steel with high strength and high toughness and processing method thereof are disclosed in the present invention. The stainless steel comprising: C of 0.01%˜0.1% weight percentage, N of 0.05%˜0.2%, P of no higher than 0.03%, S of no higher than 0.003%, Si of 0.5%˜1%, Mn of 1.0%˜2.0%, Cr of 15%˜17%, Ni of 5% to 7%, and Fe. The stainless steel contains austenite and strain-induced martensite structure, wherein the martensite is of irregular approximately spindle body shape, and the average size of its long axis ranges from 50 to 1000 nm and that of its short axis ranges from 20 to 500 nm, the volume percent of martensite in the stainless steel is 0.1% to 20%. |
| US11401565B2 |
Sheet metal forming die laser surface hardening process
A laser beam is scanned along spaced apart side-by-side laser tracks to form corresponding spaced apart side-by-side hardened metal tracks across a binder surface of the forming die. Each hardened metal track is oriented to extend longitudinally in a direction that is normal to the metal flow direction across the binder surface during a sheet metal forming operation. The scanning forms the corresponding hardened metal tracks across the binder surface without needing to perform a post-hardening machining operation on the sheet metal forming die to remove distortion caused by the laser hardening process. |
| US11401562B2 |
Cell-free nucleic acids for the analysis of the human microbiome and components thereof
Methods, devices, compositions and kits are provided for analysis of the microbiome or individual components thereof in an individual. The methods find use in a determination of infection, in analysis of the microbiome structure, in determining the immunocompetence of an individual, and the like. In some embodiments of the invention, the individual is treated with an therapeutic regimen, e.g. drugs, diet, radiation therapy, and the like. |
| US11401561B2 |
Primer composition for analyzing intestinal flora and application thereof
The present invention provides a primer composition for analyzing intestinal flora, a detection kit composed thereof, and an application of the same. The present invention employs two-step amplification to obtain a sequencing library, and the primer composition comprises a random base. |
| US11401558B2 |
Methods, compositions, kits and devices for rapid analysis of biological markers
Provided herein are kits, devices and methods for rapid analysis of biological samples. In particular, kits, devices and methods described herein can be applied to rapid nucleic acid analysis of solid tissue samples. |
| US11401557B2 |
Bladder cancer detection using microsatellite analysis in paired buccal swab and urine samples
Methods are described for the efficient and accurate detection of bladder cancer. In particular, the method utilizes microsatellite analysis of bladder cancer markers to determine the presence of loss of heterozygosity or microsatellite instability using matched buccal swab and urine samples from a patient. In some cancer marker panels, detected loss of heterozygosity or microsatellite instability in two markers can be indicative of bladder cancer. |
| US11401554B2 |
Genetic markers for predicting responsiveness to therapy with HDL-raising or HDL mimicking agent
Genotyping methods and compositions for selecting patients with cardiovascular disease who will benefit from treatment with HDL-raising or HDL mimicking agent, in particular with a CETP inhibitor/modulator. |
| US11401551B2 |
Identifying a de novo fetal mutation from a maternal biological sample
Systems and methods for identifying a de novo mutation in a genome of a fetus are provided. Methods may include identifying a location of each of a plurality of cell-free nucleic acid molecules using sequence reads. Methods may also include identifying a first sequence in the sequence reads at a first location that is not present in the maternal or paternal sequences. Methods may additionally include determining a first fractional concentration of the first sequence in the biological sample at the first location. Further, methods may include determining a second fractional concentration of a fetal-specific second sequence. The second sequence may be inherited by the fetus from the father at the second location. In addition, methods may include classifying the first sequence as a de novo mutation at the first location in a fetal genome of the fetus if the first and second fractional concentrations are about the same. |
| US11401550B2 |
Creation of libraries of droplets and related species
The present invention is generally related to systems and methods for producing a plurality of droplets. The droplets may contain varying species, e.g., for use as a library. In some cases, the fluidic droplets may be rigidified to form rigidified droplets (e.g., gel droplets). In certain embodiments, the droplets may undergo a phase change (e.g., from rigidified droplets to fluidized droplets), as discussed more herein. In some cases, a species may be added internally to a droplet by exposing the droplet to a fluid comprising a plurality of species. |
| US11401546B2 |
Detection of target nucleic acid sequences by PTO cleavage and extension-dependent extension assay
The present invention relates to the detection of a target nucleic acid sequence by a PTOCE-E (PTO Cleavage and Extension-dependent Extension) assay. The PTOCE-E assay of the present invention can reduce the non-target signal and increase the target signal as compared with the conventional PTOCE and PCE-SH methods, thereby enabling more accurate detection of the target nucleic acid sequence. |