Document Document Title
US08948456B2 Augmented reality virtual automotive X-ray having service information
A tool for providing a user with information on a particular object related to a position and an orientation of the tool with respect to the object includes an image capturing device configured to capture an image of the object. The tool further includes a position and orientation sensor configured to determine the position of the tool with respect to the object, a processor configured to determine from the image the type of object, a display configured to display the image of the object, the display further configured to display additional information in addition to the image of the object in response to the determination of the type of object, and the processor further configured to determine a change in one of the position and the orientation of the sensor and the tool and further configured to modify the display.
US08948454B2 Boosting object detection performance in videos
A method and system for training a special object detector to distinguish a foreground object appearing in a sequence of frames for a target domain. The sequence of frames depicts motion of the foreground object in a non-uniform background. The foreground object is detected in a high-confidence subwindow of an initial frame of the sequence, which includes computing a measure of confidence that the high-confidence subwindow includes the foreground object and determining that the measure of confidence exceeds a specified confidence threshold. The foreground object is tracked in respective positive subwindows of subsequent frames appearing after the initial frame. The subsequent frames are within a specified short period of time. The positive subwindows are used to train the special object detector to detect the foreground object in the target domain. The positive subwindows include the subwindow of the initial frame and the respective subwindows of the subsequent frames.
US08948444B2 Method for determining the tumbling motion of a vehicle wheel
A method for determining the tumbling motion of a vehicle wheel and/or a measurement object attached to the vehicle wheel in the context of an axle measurement. The tumbling motion is executed relative to the precise wheel axis of rotation of the vehicle wheel and at least one orientation value is determined between the precise wheel axis of rotation and a reference axis. Using at least one image recording unit, at least two wheel features that are present on the vehicle wheel or are attached for the measurement are acquired as the vehicle travels past and are evaluated by an evaluation device situated downstream. Using the wheel features recorded as the vehicle travels past, a wheel coordinate system and a feature coordinate system are determined. The wheel coordinate system and the feature coordinate system are set into relation to one another in order to determine the orientation value.
US08948443B2 Luminance evaluation
A method comprises providing a change to apply to video; dividing video into blocks; creating propagation map which captures only specific changes to blocks that would be changed by the application of the change; evaluating the change based on a luminance criterion as being a perceptible change or an imperceptible change; for propagation maps of an imperceptible change, storing the propagation map to a list, wherein the propagation map is the principle data structure to be applied to the video. The propagation map can be created by using motion vector changes associated with the change.
US08948442B2 Optical monitoring of vehicle interiors
Vehicle includes a structure defining an interior space for containing or designed to contain one or more objects, and an arrangement mounted on, joined or coupled to the structure for determining whether an object is present in the interior space, or the presence of multiple objects. One arrangement includes at least one optical imaging device arranged to receive images of the interior space defined by the structure, and a processor coupled to the optical imaging device(s) and arranged to determine whether one or more objects are present in the interior space and when one or more objects are determined to be present, to obtain information about the object or objects. The processor is preferably arranged to distinguish between different objects and/or different arrangements of objects. A related method for obtaining information about objects in interior spaces of vehicles is also disclosed.
US08948441B2 Planar speaker system
A planar speaker system may include a bottom frame having a cavity. Within this cavity a plurality of magnets may be arranged to form a substantially circular pattern. A diaphragm that includes a plurality of electrically conductive traces may be connected to the bottom frame and extend across the cavity of the bottom frame. When alternating current flows through the electrically conductive traces, the diaphragm may vibrate in response to the interaction between the current flowing in the electrically conductive traces and the magnetic field, thereby producing sound. The planar speaker system may include a top frame having a cavity, and a second set of magnets may be disposed in the cavity of the top frame.
US08948435B2 Driver unit and earphone device
Provided is a driver unit including an acoustic conversion unit; and a housing body in which the acoustic conversion unit is housed, and in which an opening is formed. The acoustic conversion unit includes a pair of magnets arranged to face each other, a coil to which an input signal is supplied, an armature at which a vibrating part passing through the coil and arranged between the pair of magnets is formed, and a vibrating plate connected to the armature. A size of the opening is larger than 40 μm and smaller than 100 μm.
US08948433B2 Narrow-angle directional microphone
Provided is a narrow-angle directional microphone in which a microphone unit is attached to an acoustic tube, the acoustic tube is accommodated a microphone case and which prevents the rattling of components provided in the microphone case and has high mechanical strength. A narrow-angle directional microphone 1 includes a microphone unit 2, an acoustic tube 3 that has an opening formed in a circumferential wall along an axis direction and a rear end to which the microphone unit is connected, a cylindrical microphone case 4 that accommodates the acoustic tube, and fixing means 3a, 4a, 10, and 20a that fix the acoustic tube in the microphone case, with stress being applied to the acoustic tube in the microphone case in the axis direction from the leading end side of the acoustic tube using the rear end of the acoustic tube as a fulcrum.
US08948432B2 Microphone unit
A microphone unit includes a case; a diaphragm arranged inside the case; and an electric circuit unit that processes an electric signal generated in accordance with vibration of the diaphragm. The case has a first sound introducing space that introduces a sound from outside of the case to a first surface of the diaphragm via a first sound hole; and a second sound introducing space that introduces a sound from outside of the case to a second diaphragm, via a second sound hole. A resonance frequency of the diaphragm is set in the range of ±4 kHz based on the resonance frequency of at least one of the first sound introducing space and the second sound introducing space.
US08948429B2 Amplification of a speech signal in dependence on the input level
Hearing apparatuses, in particular hearing aids, have improved intelligibility. This is accomplished by a method for amplifying a speech signal for a hearing apparatus by detection of an input sound, determining an input level of the input sound and amplification of the input sound. A mean input level of the input sound is determined and it is established whether the input sound has a speech component. If not, the input signal is amplified in dependence on the input level in accordance with a predefined first amplification characteristic. However, if a speech component is found, the input signal is amplified in dependence on the input level in accordance with a predefined second amplification characteristic. The second amplification characteristic is formed in dependence on the mean input level such that amplification is increased with respect to first amplification characteristic in a predefined level interval below the mean input level.
US08948426B2 Method for calibrating a hearing aid
A hearing aid having a plurality of frequency bands is calibrated by evaluating the response of the hearing aid in each band and programming the hearing aid to produce a specific sound pressure level in each band, thereby providing a calibrated instrument that can be used for both evaluation and compensation of hearing loss. The sound pressure levels are preferably the same for each band. The evaluation step is preferably performed at the center frequency of each band.
US08948425B2 Method and apparatus for in-situ testing, fitting and verification of hearing and hearing aids
An improved multi-function hearing aid having in-situ testing, fitting and verification functions is disclosed which solves problems long standing in the art of hearing aid fitting dealing with individual size differences in the size of the pina and ear canal of the user, individual preference to sound level and frequency variation, and verification procedures.
US08948422B1 Ribbon microphone with rounded magnet motor assembly, backwave chamber, and phantom powered JFET circuit
A novel ribbon microphone incorporates rounded-edge magnet motor assembly, a backwave chamber, and a phantom-powered JFET circuit. In one embodiment of the invention, one or more novel rounded-edge magnets may be placed close to a ribbon of the ribbon microphone, wherein the one or more novel rounded-edge magnets reduce or minimize reflected sound wave interferences with the vibration of the ribbon during an operation of the ribbon microphone. Furthermore, in one embodiment of the invention, a novel backwave chamber operatively connected to a backside of the ribbon can minimize acoustic pressure, anomalies in frequency responses, and undesirable phase cancellation and doubling effects. Moreover, in one embodiment of the invention, a novel phantom-powered JFET preamplifier gain circuit can minimize undesirable sound distortions and reduce the cost of producing a conventional preamplifier gain circuit.
US08948417B2 Characteristic correcting device and characteristic correcting method
According to one embodiment, a characteristic correcting device includes: a correction filter configured to correct sound quality characteristics of a plurality of bands in a frequency range of an input signal based on a frequency characteristic which is set in advance to generate an output signal; an input module configured to input a surrounding sound signal of sound around an output device outputting the output signal; and an adjusting module configured to reduce the number of the bands of which the sound quality characteristics are to be corrected of the bands in the frequency range of the input signal in accordance with an increase in amplitude of the surrounding sound signal which is input.
US08948415B1 Mobile device with discretionary two microphone noise reduction
Methods and systems for power conservation in mobile devices are presented. In one example, a mobile communication device includes a first microphone and a second microphone. The mobile communication monitors an ambient noise level and responsive to the ambient noise level operates the mobile communication device in a normal operation mode or a power conservation mode. In power conservation mode, use of the second microphone is discretionary.
US08948403B2 Method of processing signal, encoding apparatus thereof, decoding apparatus thereof, and signal processing system
A method processing a signal, an encoding apparatus, and a decoding apparatus are provided. The method of processing a signal includes restoring a down-mixed original signal using a re-quantized prediction parameter to generate a restored signal in an encoding apparatus; generating mute information indicating whether the down-mixed original signal has been muted, according to a value of the restored signal; and transmitting the mute information and the down-mixed original signal from the encoding apparatus to a decoding apparatus.
US08948398B2 Universal file packager for use with an interoperable keychest
There is provided a system and method for a universal file packager for use with an interoperable key chest. There is provided a method for distributing media contents to distributors, comprising obtaining a first key, a second key and a content, encrypting the second key using the first key to generate an encrypted second key, encrypting the content using the second key to generate an encrypted content, generating a key information file including the encrypted second key, generating a universal file including the encrypted content and a first network address for a central key repository (CKR), providing the key information file for storage in the CKR, and providing the universal file to the distributors. The universal file can then be provided to users for digital e-commerce and transferred across different distributors with the CKR negotiating key access for granting new interoperable DRM licenses.
US08948395B2 Systems and methods for key management for wireless communications systems
A novel key management approach is provided for securing communication handoffs between and access terminal and two access points. This approach provides for securely handing off communications between an access terminal and access point without risking exposure a master key for the access terminal. Temporary master keys are derived for low latency handoffs and secure authentication between a new access point and the access terminal. In one aspect, a distributive key management scheme is provided in which a current access point generates a new security key (based on its own security key) that is used by the next access point with which an access terminal communicates. In another aspect, a centralized key management scheme is provided in which a central authenticator maintains, generates, and distributes new security keys (based on a master security key associated with the access terminal) to access points.
US08948393B2 Uninterrupted transmission during a change in ciphering configuration
Techniques for sending information without interruption during a change in ciphering configuration are described. A user equipment (UE) communicates with a wireless communication network for a call. The UE sends first information to the wireless network using a first ciphering configuration. For a change in ciphering configuration, the UE selects an activation time for a second ciphering configuration and sends a security message with the activation time. This activation time is the time at which the UE applies the second ciphering configuration to transmission sent to the wireless network. The UE thereafter sends second information (e.g., a measurement report message) using the first ciphering configuration after sending the security message and before the activation time. The UE sends third information using the second ciphering configuration after the activation time.
US08948392B2 Method of providing an authenticable time-and-location indication
A method of providing an authenticable time-and-location indication using a radio-navigation signal receiver comprises receiving radio-navigation signals broadcast from a plurality of radio-navigation signal sources, at least some of the radio-navigation signals containing one or more cryptographic tokens protected by encryption, the cryptographic tokens being updated from time to time. The receiver retrieves, by decryption, the cryptographic tokens from the radio-navigation signals containing them. The receiver then determines positioning data, representing its geographical position and time, based on the radio-navigation signals received. The receiver generates a digital authentication code using a cryptographic function taking as inputs at least the positioning data and the retrieved cryptographic tokens, and produces a data package including a first part containing the positioning data and a second part containing the digital authentication code.
US08948391B2 Secure communication method
A first computing device receives over a telecommunications network from a second computing device a verification message encrypted using a public key. The verification message is generated by the second computing device when initiating a call to the first computing device. The first computing device transmits to a wireless router via a wireless local area network (WLAN) created by the wireless router, the encrypted verification message. The first computing device receives from the wireless router over the WLAN, a decrypted verification message decrypted from the encrypted message by the wireless device using a private key associated with the public key. The first computing device transmits over the telecommunications network to the second computing device, the decrypted verification message. If the second computing device determines that the decrypted verification message corresponds to the encrypted verification message, the second computing device allows the call to the first computing device to proceed.
US08948387B2 Security key generator
A communication system has a first and a second communicating device operable to send and receive data units through a communication channel. Some of the data are encrypted using a security key. The first device comprises a first key generator generating a first embodiment of the key independently of a second embodiment of the key generated by a second generator of the second device, the second embodiment being generated independently of the first, which depends on parameter(s) characterizing a first transmission quality of the channel when receiving a first set of unencrypted data sent by the second device. The second embodiment depends on parameter(s) characterizing a second transmission quality of the channel when receiving a second set of unencrypted data sent by the first device, the first set being different from the second set.
US08948384B2 Image encrypting/decrypting system and method
The present invention relates to an image encrypting/decrypting system and method devised in such a way that: a transmitter and a receiver for transmitting and receiving moving images share a seed for encrypting and decrypting the moving images; the transmitter transmits moving images after encrypting the moving images by dividing them into segment units and mixing the time sequencing of the images in each of the segments in accordance with a random number generated by means of the seed; and the receiver decrypts the moving images which it receives, by sorting them in segment units and then restoring the time sequencing of the images in each of the segments in accordance with the random number generated by means of the seed. The present invention makes it possible to effectively implement the function of encrypting after having carried out transcoding even in cases involving an alteration to the frame or an increase in resolution in an encrypted moving image, and also makes it possible to resolve the problem of having to encrypt/decrypt before/after carrying out transcoding in cases where a compressed moving image is being encrypted.
US08948381B2 Conditional key generation based on expiration date of data
In one embodiment, receive a first request in connection with accessing a set of encrypted data, wherein the set of encrypted data has an expiration date; the first request comprises a first key associated with the expiration date; and the set of encrypted data has been encrypted using the first key. Validate the first key by comparing the expiration date against a current time. Generate a second key for decrypting the set of encrypted data using the first key only if the expiration date has not passed.
US08948377B2 Encryption device, encryption system, encryption method, and encryption program
The object is to enable cipher communication even when a cipher key in a one-time pad cipher (Vernam cipher) is running short. A one-time pad encrypting part encrypts communication data by the one-time pad cipher by sequentially using part of a one-time pad cipher key stored in a one-time pad cipher key storage part, to generate encrypted data. A block-encrypting part encrypts communication data by a block cipher by using a block-cipher key stored in a block-cipher key storage part, to generate encrypted data. An encryption control part controls whether the communication data is to be encrypted by the one-time pad encrypting part, or by the block-encrypting part, depending on a remaining bit count of the one-time pad cipher key stored in the one-time pad cipher key storage part.
US08948374B2 Method and system for a wireless ear bud
Exemplary embodiments include methods and systems for detecting an incoming telephone signal, processing the incoming telephone signal, transmitting the processed signal to a remote receiver and alerting a remote user of the incoming signal.
US08948367B2 Rerouting of trunks by a PBX to an alternate PBX
A switching system that receives communications over a trunk incoming from a communications network and routes them to its subtending communications terminals responds to a stimulus, such as actuation of an actuator, by either (a) returning all of the communications that it receives on the incoming trunk at least subsequently to the stimulus to the network over a trunk outgoing to the network with instructions directing the network to redirect the returned communications to a second switching system for routing to communications terminals served by the second system, or (b) routing all of the communications that it receives on the incoming trunk at least subsequently to the stimulus to the second switching system over a trunk outgoing to the second switching system for routing to the communications terminals served by the second switching system.
US08948361B2 Mitigating spam and identifying callers in video calls
Authentication of a user initiating a communication may be achieved using a visual indicator of the user. Initiation of a communication may result in the initiator of the communication collecting image data associated with the initiator's identity. Additionally, the initiator may be required to perform a task, wherein a response to the task may be transmitted with the image data to the receiver of the communication. The receipt of the image data may allow a receiver of the communication to reduce spam and verify that the initiator is who it purports to be.
US08948360B2 Method and system for providing to a second party, computer-network related information about a first party
A method and system for providing computer-network related information about a second party. First, the second party receives a telephone number of a first party. The second party's customer premises equipment (CPE) or elements in a telephone network then use the telephone number to index a database, which contains combinations of telephone numbers and computer-network addresses. Once the first party's computer-network address is retrieved, first-party-customized information present at the computer-network location specified by the computer-network address can be sent to and displayed on the second party's CPE. Also, the first party's telephone number can be sent to an application in the computer network, causing the first-party-customized information to be automatically displayed on the second party's CPE.
US08948358B1 Monitoring of personal and business use of telephony devices
According to one or more embodiments, a telecommunication system includes a call routing circuit configured to receive and route calls and data transmissions from a plurality of telecommunication devices. The telecommunication system also includes a processing circuit for monitoring business and personal use of telecommunication devices associated with a client account. The processing circuit is configured to maintain a log of calls and data transmissions routed by the call-routing circuit for a the plurality of telecommunication devices. The processing circuit is further configured to use a set of classification functions in a policy of the client account to determine whether each of the identified first set of calls and data transmissions are business related or personal based on characteristics of each of the first set of calls and data transmissions.
US08948356B2 System and method for routing communications
A system and method that includes receiving a communication request of an account, the communication request including communication properties; identifying at least two routing options of a route priority list, the routing options capable of completing the communication request and identified according to a priority heuristic; generating a communication cost from the communication properties; and upon receipt of the routing response and the communication cost response, executing a communication with a routing option of the routing priority list and committing a cost of the communication to the account.
US08948350B2 Telecommunication call management and monitoring system with voiceprint verification
Disclosed is a secure telephone call management system for authenticating users of a telephone system in an institutional facility. Authentication of the users is accomplished by using a personal identification number, preferably in conjunction with speaker independent voice recognition and speaker dependent voice identification. When a user first enters the system, the user speaks his or her name which is used as a sample voice print. During each subsequent use of the system, the user is required to speak his or her name. Voice identification software is used to verify that the provided speech matches the sample voice print. The secure system includes accounting software to limit access based on funds in a user's account or other related limitations. Management software implements widespread or local changes to the system and can modify or set any number of user account parameters.
US08948347B2 Method and device for checking the connection of a positive supply voltage to a subscriber access line comprising a plurality of wires
According to the invention, a user connection cable (TAL) that is to be associated with a user connection circuit (SLIC) and is used for connecting at least one user (TN) to at least one communication network is verified regarding switching on of a positive distribution voltage in the strands (a, b). The user connection circuit (SLIC) is initially switched to the silent interval mode and a test impedance (I) is switched between the strands (a, b) of the user connection cable (TAL), whereupon the current (i) flowing across the strands (a, b) and the voltage (u) to ground of a strand (b) are measured. Advantageously, the measurements are taken via measuring devices disposed on the user connection subassembly (SLMA).
US08948346B2 Collimator and control method thereof
A collimator for adjusting the shape of a region irradiated by radiation and a control method thereof. The collimator includes a plurality of irises to adjust the shape of the irradiation region, a light source outputting light to display the irradiation region, a reflective mirror to adjust a path of light radiated from the light source toward the irradiation region, and an image output unit outputting to the irradiation region a visible image representing the shape of a target object for radiography or a mark indicating the center of the radiation region.
US08948344B2 Anode disk element comprising a conductive coating
The present invention relates to X-ray generating technology in general, in particular, it relates to an anode disk element (1) for an X-ray generating device (21). The generation of electromagnetic radiation may be considered to be quite inefficient, since a substantial part of energy applied to a focal track is converted to heat rather than X-radiation. Thus, a limiting factor in the operation of X-ray tubes is the cooling of the anode element and more specifically the focal track. In the present invention, an anode disk element is provided, with an improved dissipation of heat from the focal track. Thus, the anode disk element may sustain increased heat while maintaining structural integrity. The anode disk element (1) comprises at least a first surface (2) and a second surface (3), with the first surface (2) comprising a focal track (4) and the second surface (3) comprising a conductive coating (5). The anode disk element (1) is rotatable about a rotational axis (6) with the focal track (4) being rotationally symmetrical to the rotational axis (6). The first surface (2) comprising the focal track (4) and the second surface (3) comprising the conductive coating (5) are adjacently arranged.
US08948343B2 Arrangement and method for active vibration damping within an X-ray radiator
In an arrangement and method for active vibration compensation of an x-ray radiator, a counter-vibration generation unit is arranged within the x-ray radiator to reduce a vibration arising during operation of the x-ray radiator. The counter-vibration generating unit is engaged in an active connection with the x-ray radiator and generates a counter-vibration that is phase-shifted by 180 degrees relative to the operational vibration. Operational vibrations generated by the x-ray radiator can be directly reduced at the point of origin by the application of active counter-vibrations in the immediate proximity of the vibration generator. Additional vibration transmission to other system parts (for example a C-arm) is thereby reduced or prevented.
US08948341B2 Radiation therapy techniques using targeted wave superposition, magnetic field direction and real-time sensory feedback
New techniques for radiotherapy and radiosurgery are provided. In some aspects of the invention, multiple sources of radiation with a frequency, phase and polarization that are projected to constructively interfere at a treatment target are provided. In other aspects, hardware directs multiple radiation sources from the same side of a treatment target, and focuses the initiation of substantial interference on a leading structure in the target. In other aspects, refractive models updated by live feedback are used to improve dosage distribution by, among other things, optimizing the number, length, superposition overlap, angle and nature of radiation beams. In additional aspects, interstitial beacons and radiation path diversion structures are inserted to improve dosage distribution to a target and avoid critical neighboring structures. In particle therapy, regionally actuable external magnetic fields are also provided, to improve dosage accuracy and avoid collateral damage.
US08948340B2 Mammography system and method employing offset compression paddles, automatic collimation, and retractable anti-scatter grid
A mammographic imaging system is optimized for use with a single fixed size flat panel digital image receptor. It accommodates compression devices (paddles) of varying sizes, and positions them properly in a field of view of the image receptor. When a compression paddle with size smaller than the field of view of the image receptor is used, the compression paddle can be shifted laterally in the direction parallel to the chest wall, so as to facilitate different views of different size breasts, and permit the image receptor to image as much of the desired tissue as possible. An automatic X-ray collimator restricts the X-ray illumination of the breast in accordance with the compression paddle size and location in the field of view. An anti-scatter grid, mounted inside the image receptor enclosure, just below the top cover of the enclosure, can be retracted out of the field of view of the image receptor for use in magnification imaging.
US08948338B2 Dynamically scanned X-ray detector panel
An x-ray imaging system for imaging a subject includes an x-ray source configured to project an x-ray radiation toward a portion of the subject and a panel detector positioned opposite the x-ray source relative to the subject and configured to receive x-ray radiation passing through the subject. The panel detector includes a scintillation layer converting x-ray radiation to light rays of a selected spectrum and a plurality of microelectromechanical scanners. Each microelectromechanical scanner includes a photodetector mounted on a corresponding movable platform and configured to detect light in the selected light spectrum. The panel detector includes a scanning control module configured to move each platform in a selected scan pattern.
US08948337B2 Computed tomography image reconstruction
Approaches for performing computed tomographic image reconstruction are described. In one embodiment, a full or almost full scan of scan data is acquired and a plurality of image reconstructions are performed based on the scan data, wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions. Further, the present approaches provide for combining the plurality of image volumes together to produce a final image volume.
US08948333B2 Clock frequency error detecting device
A clock frequency error detecting device includes a system storage portion which stores a synchronization system based on at least one of several types of frame synchronization signals included in a received signal in which a frame synchronization signal in each frame includes a part obtained by shifting of a frame synchronization signal of another frame by a symbol by using a predetermined rule; a pattern matching portion which performs pattern matching between the received signal and the synchronization system; a symbol counter which outputs a symbol number; a timing detection portion which detects the frame synchronization signal of each frame based on a pattern matching processing result and to output the symbol number at the detection timing; and a frequency error detection portion which detects a change of the symbol number and to detect a clock frequency error of the symbol period based on the detection.
US08948331B2 Systems, circuits and methods for filtering signals to compensate for channel effects
Embodiments of circuits and methods are described for decreasing transmitter waveform dispersion penalty (TWDP) in a transmitter. A data stream is received for transmission across a channel and a main data signal is generated from the data stream. At least two cursor signals are generated where each of the at least two cursor signals are shifted at least a portion of a clock period from the main data signal. The at least two cursor signals are subtracted from the main data signal to generate an output data signal with improved TWDP. Other embodiments include generating a main data signal, a pre-cursor signal shifted on previous clock cycle relative to the main data signal, and a post-cursor signal Shifted one subsequent clock cycle relative to the main data signal. The pre and post cursor signals are subtracted from the main data signal to generate an output data signal.
US08948328B2 Method and device for maintaining the performance quality of a communication system in the presence of narrow band interference
A system that incorporates teachings of the subject disclosure may include, for example, a method for analyzing a wide frequency band with respect to signal power levels in specified narrow frequency bands, detecting narrow band signal power levels received in the specified narrow frequency bands, determining an average composite wideband power level from the narrow band signal power levels, determining an adaptive threshold from the average composite wideband power level, detecting narrow band interference according to the adaptive threshold, and configuring a filter to substantially suppress the detected narrow band interference. Other embodiments are disclosed.
US08948327B2 System and method for discrete gain control in hybrid MIMO/RF beamforming
A system for selectively and discretely amplifying or attenuating antennas in a hybrid multiple-input-multiple-output (MIMO) radio distribution network (RDN) receiving system is provided herein. The system includes a MIMO receiving system comprising a MIMO baseband module having N branches; an RDN connected to the MIMO receiving system, the RDN comprising at least one beamformer fed by two or more antennas, so that a total number of antennas in the system is M, wherein M is greater than N, wherein each one of the beamformers include a passive combiner configured to combine signals coming from the antennas coupled to a respective beamformer into a combined signal, wherein the at least one beamformer is further configured to selectively amplify or attenuate in discrete steps, one or more of the signals coming from the M antennas, based on qualitative metrics measured by the MIMO baseband module.
US08948324B2 Communications device and related method that detects radio frequency (RF) interferer on a communications channel
A communications device includes a demodulator configured to demodulate a received communications signal into complex time domain samples. A processor is coupled to the demodulator and configured to determine the variance over time domain magnitude samples, perform a complex Fast Fourier Transform (cFFT) on the complex time domain samples as magnitude and phase to obtain frequency domain samples and determine the variance over the frequency domain samples. A comparator compares a variance ratio of the time domain magnitude samples and the frequency domain samples with a threshold to determine if a RF interferer is present, indicative that the communications channel is busy.
US08948321B2 Reduced state sequence estimation with soft decision outputs
A receiver may be operable to receive an inter-symbol correlated (ISC) signal, and generate a plurality of soft decisions as to information carried in the ISC signal. The soft decisions may be generated using a reduced-state sequence estimation (RSSE) process. The RSSE process may be such that the number of symbol survivors retained after each iteration of the RSSE process is less than the maximum likelihood state space. The plurality of soft decisions may comprise a plurality of log likelihood ratios (LLRs). Each of the plurality of LLRs may correspond to a respective one of a plurality of subwords of a forward error correction (FEC) codeword.
US08948320B2 Frame and symbol timing recovery for unbursted packetized transmissions using constant-amplitude continuous-phase frequency-modulation
A system and method for performing frame and symbol timing synchronization on samples of a received signal that includes a series of frames. Each frame includes a known preamble and payload data. A start-of-frame time is estimated by scanning the received signal samples for the self similarity of two successive preambles. A carrier frequency offset (CFO) is estimated by maximizing a correlation between a magnitude spectrum of the received signal and a magnitude spectrum of a known preamble model. A fine estimate for the CFO is determined by computing a phase difference between samples separated by p repetitions of the base pattern for various values of index p, and computing a slope of a least squares affine fit to the phase differences. Additional operations are performed to find an optimal symbol starting point, to perform carrier phase synchronization and to detect the start of payload data.
US08948318B2 Incremental lattice reduction systems and methods
An exemplary embodiment of the present invention provides an incremental lattice reduction method comprising: receiving an input signal at a plurality of input terminals; evaluating a reliability assessment condition using a primary symbol vector estimate of at least a portion of the input signal; terminating the incremental lattice reduction method if the reliability assessment condition is satisfied; and if the reliability assessment condition is not satisfied, performing at least one iteration of a lattice reduction detection sub-method to obtain a secondary symbol vector estimate.
US08948314B2 Symbol timing recovery with multi-core processor
A method of performing timing error detection includes receiving, by a multi-core processor, a data stream and up-sampling the data stream by a plurality of processing cores of the multi-core processor. The up-sampling is performed in parallel by the plurality of processing cores. The method includes selecting one sample per symbol of the data stream to generate a sampled data output. The method also includes performing symbol timing recovery based on the sampled data output to adjust a resampling point.
US08948309B2 Method and system for redundancy-based decoding of video content in a wireless system
Aspects of a method and system for redundancy-based decoding of video content in a wireless system are provided. A wireless receiver may determine whether a received multimedia data stream comprises video content and may select a redundancy-based decoder when video content is detected. The wireless receiver may be a wireless local area network (WLAN) receiver or a cellular receiver. Video content may be indicated by at least one flag in a preamble or a reserved field of the received multimedia data. The redundancy-based decoder may be a Viterbi decoder. The wireless receiver may enable a standard Viterbi decoder to decode portions of the multimedia data that do not comprise video content. The wireless receiver may generate at least one signal to select the redundancy-based decoder or the standard Viterbi decoder.
US08948308B2 Apparatus and method of transmitting hierarchically modulated signal
An apparatus and a method of transmitting hierarchically modulated signals are provided. The present invention includes: a basic layer symbol generator generating a first layer signal; an enhancement layer symbol generator generating a second layer signal synchronized with the first layer signal and having different signal power; and a hierarchical modulator hierarchically modulating the first layer signal and the second layer signal, wherein the enhancement layer symbol generator performs constellation rotation rotating bundles configured as constellation points formed by the second layer signal based on constellation points of the first layer signal by a predetermined angle. According to the exemplary embodiment of the present invention, it is possible to improve the receiving performance of the second layer signals by applying the constellation rotation technology to the second layer signals in regards of the signal transmission system using the hierarchical modulation technology.
US08948303B1 Communication device and method of crest factor reduction using amplitude compression
A method of crest factor reduction using amplitude compression for multi carrier signals. Major elements of the inter-modulation distortion caused by amplitude suppression are removed to be outside of the desired signal band, and the peak amplitude is compressed, thus producing a signal with lower peak to average ratio for a required maximum error vector magnitude.
US08948302B2 OFDM pre-equalizing
For example in case of an OFDM multicarrier transmission system the transmission characteristics of subcarriers of a multicarrier transmission system using a plurality of antenna elements (3, 3′) can be adjusted. Particularly the power and the phase of the subcarriers can be adapted. To this object the subcarrier frequency channel (2, 2′) characteristics of the multicarrier transmission are detected (11, 11′) at the side of the transmitter (3). The power of each subcarrier is then distributed by a weighting unit (14, 14′). The subcarriers can be further pre-equalized (1, 1′) by dividing the subcarrier signal respectively by the sum of the squared magnitude of the frequency channel characteristics of all subcarrier signals or a frequency characteristic of the selected antenna element (3, 3′).
US08948299B2 Pulse converting and shaping communication device
A communication device includes: a converting part converting a data signal from a non-return-to-zero signal to a return-to-zero signal; a trigger flip-flop inverting an output signal every time the return-to-zero signal changes in one cycle; a first filter outputting a positive pulse and a negative pulse alternately, which indicate existence and absence of the pulse corresponding to a value of the data signal, by removing a low frequency component of an output signal of the trigger flip-flop.
US08948297B2 Method of maintaining coherency of a precoding channel in a communication network and associated apparatus
In prior art, selection of precoding granularity is affected by two inter-restricting factors, i.e., precoding accuracy and channel estimation at a mobile terminal. To solve this problem, the present invention provides a method of maintaining coherency of a precoding channel in a communication network and an associated apparatus. During precoding, this method takes into account both channel coherency and system capacity. A base station adjusts phase and/or amplitude of a precoding matrix corresponding to each precoded unit to maintain coherency of associated information of the overall precoding channel. The associated information of the precoding channel includes, for example, CSI or eigenvalue matrix of the precoding channel. Afterwards, a mobile terminal performs channel estimation based on reference signals of multiple precoded units, thereby eliminating the limitation in prior art that a mobile terminal can perform channel estimation only within one or more resource block limited by a precoding granularity.
US08948294B2 Communication of synchronization signals between base station and terminal
Present document is related with communication of synchronization signals between base station and terminal. The base station acquires a primary synchronization signal generated using a Constant Amplitude Zero Auto-Correlation (CAZAC) sequence having a root index M and having a length L, and a secondary synchronization signal informing a cell group ID. And, the base station transmits the primary synchronization signal at a last symbol of a specific time domain unit to one or more terminals, and the secondary synchronization signal at a second-to-last symbol of the specific time domain unit to the one or more terminals. Here, the root index M is one among a root index set comprising m0 and m1 meeting “m0+m1=(½*L)*n” or “m0−m1=±(½*L)*n”, where ‘n’ is an integer greater than 0.
US08948286B2 Wireless communication system mapping data bits to symbol bit positions according to error rates of those bit positions and data content
A transmitter-receiver pair encode data as transmitted symbols according to knowledge about variations in noise immunity between different bit positions of the symbols as a decoded. High usefulness data may be preferentially encoded at those bit positions having greatest noise immunity to improve transmission effectiveness.
US08948285B2 Tentpoles scheme to achieve reliable V2V communications
A communications system including a transmitter and a receiver. The transmitter transmits a signal with normal data symbols and at least one dual-use data symbol, where the dual-use data symbol has user data and more data protection than the normal data symbols. The receiver receives the transmitted signal and decodes the dual-use data symbol and uses information from decoding of the dual-use data symbol to improve a channel estimate for the normal data symbols.
US08948278B2 Telecommunication signaling using nonlinear functions
One exemplary embodiment can describe a method for communicating. The method for communicating can include a step for identifying characteristics of a communications channel, a step for identifying a set of nonlinear functions used to generate waveforms, a step for assigning a unique numeric code to each waveform, a step for transmitting a numeric sequence as a series of waveforms, a step for receiving the series of waveforms, and a step for decoding the series of waveforms.
US08948275B2 Power line communication system for vehicle
In a power line communication system, a master uses a twisted pair wire as a power line and a communication line and outputs a power signal and a data modulation signal to a slave. The slave includes an aperture antenna, a power monitoring portion, and a determining portion. The aperture antenna receives the power signal via the twisted pair wire by electromagnetic induction coupling of an electromagnetic field generated at the twisted pair wire in accordance with an applied current of the twisted pair wire. The aperture antenna has an aperture region facing an aperture region between twists of the twisted pair wire. The power monitoring portion monitors a power of the power signal received via the first aperture antenna. The determination portion determines whether to use another operation power received via the twisted pair wire on the basis of the power monitored by the power monitoring portion.
US08948271B2 Method and apparatus for a low complexity transform unit partitioning structure for HEVC
A method and apparatus for a low complexity transform unit partitioning structure for High Efficiency Video Coding (HEVC). The method includes determining prediction unit size of a coding unit, and setting the size of transform unit size of Y, U and V according to the prediction unit size of the coding unit.
US08948268B2 Image coding and decoding method and apparatus considering human visual characteristics
An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
US08948264B2 Method and apparatus for multi-view video encoding using chrominance compensation and method and apparatus for multi-view video decoding using chrominance compensation
Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting a first picture type indicating whether a current picture of the multi-view video is a reference video type for inter prediction; interpreting a block type indicating a method of determining a motion vector of a current block of the current picture; interpreting a chrominance compensation value of the current block based on at least one of the interpreted first picture type and the interpreted block type; and performing chrominance compensation on the current block by using the interpreted chrominance compensation value.
US08948261B2 Moving picture coding and decoding method with replacement and temporal motion vectors
A moving picture coding method includes: coding a coding target block using a motion vector; generating motion vector predictors; and coding the motion vector using one of the motion vector predictors generated in the generating of the motion vector predictors. In the generating of the motion vector predictors, a replacement vector which replaces a temporal motion vector predictor is added to the motion vector predictors when it is impossible to obtain the temporal motion vector predictor from a block which is included in a coded picture different from the coding target picture and corresponds to the coding target block.
US08948257B2 Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus, and program
A technique for improving a compression rate without needing new determination information (encoding flag information) is provided. For compression of each area to be encoded, based on a skip mode (a process which does not compress information of the area to be encoded, but copies previous information of the area to be encoded), it is determined whether an existing predicted image generated by an existing encoding standard is used, or an interpolation predicted image newly generated by executing move searching between decoded images is used.
US08948251B2 Transcoding system using encoding history information
The present invention provides a transcoder having a MPEG decoder and a MPEG encoder, for changing a GOP structure and the bit rate of an encoded bitstream obtained as a result of an encoding process. The MPEG encoder receives a past encoding parameters generated at a past encoding process as a history information, and performs a present encoding process by using the past encoding parameters selectively so that the present encoding process is optimized. Furthermore, the encoder describe the past encoding parameters into the encoded bitstream as the history information so as to reuse the history information in advance encoding process. The picture quality of the video data does not deteriorate even if decoding and encoding processes are carried out repeatedly by the transcoder.
US08948249B2 Encoder-aided segmentation for adaptive streaming
In one embodiment, a method for encoding content includes receiving source content and encoding the source content into a plurality of content streams. The encoding includes aligning the plurality of content streams at Group of Pictures (GOP) boundaries. The encoding further includes embedding, in each content stream, metadata identifying segmentation points within the content stream, where the segmentation points correspond to one or more of the GOP boundaries.
US08948247B2 System and method for processing video files
In accordance with an embodiment, a method of operating a video server includes receiving a first video bitstream, storing the first bitstream in a memory, generating a second video bitstream from the first video bitstream, and storing the second video bitstream in the memory. The first video bitstream has a plurality of independently coded views and the second video bitstream has one of the plurality of independently coded views.
US08948245B2 Displaying graphical output representing the activity of a plurality of monitoring detection devices
Graphical output representing the activity of a plurality of monitoring detection devices over a region is displayed. The detection devices are represented as an array of regular polygons in an arrangement substantially analogous to the monitored region, and a characteristic of the graphical output is adjusted within a displayed polygon by a degree dependent upon the level of activity detected by its respective detection device.
US08948237B2 Adaptive offset adjustment algorithm
An apparatus and method is disclosed to compensate for one or more offsets in a communications signal. A communications receiver may carry out an offset adjustment algorithm to compensate for the one or more offsets. An initial search procedure determines one or more signal metric maps for one or more selected offset adjustment corrections from the one or more offset adjustment corrections. The offset adjustment algorithm determines one or more optimal points for one or more selected offset adjustment correction based upon the one or more signal maps. The adaptive offset algorithm adjusts each of the one or more selected offset adjustment corrections to their respective optimal points and/or each of one or more non-selected offset adjustment corrections to a corresponding one of a plurality of possible offset corrections to provide one or more adjusted offset adjustment corrections. A tracking mode procedure optimizes the one or more adjusted offset adjustment corrections.
US08948235B2 Intelligent backhaul radio with co-band zero division duplexing utilizing transmitter to receiver antenna isolation adaptation
A intelligent backhaul radio is disclosed, which can operate by zero division duplexing for use in PTP or PMP topologies, providing for significant spectrum usage benefits among other benefits. Specific system architectures and structures to enable active cancellation of multiple transmit signals at multiple receivers within a MIMO radio are disclosed. Further disclosed aspects include the adaptive optimization of cancellation parameters or coefficients.
US08948234B2 Communication apparatus and communication method
When a changer changes a communication parameter based on a channel characteristic, a selector selects a switch data sequence corresponding to the changed communication parameter. A serial-parallel converter performs a serial-parallel conversion on a switch data sequence. An IFFT unit performs an IFFT. A transmitter synthesizes a calculation result from the IFFT unit to generate data symbol, and generates a transmission frame based on the data symbol. The transmitter then transmits the transmission frame to a second apparatus. A receiver receives a transmission frame from the second apparatus to generate data symbol. An FFT unit performs an FFT on the data symbol to generate a parallel signal. If a correlator determines that a notification of the change in the communication parameter has been correctly transmitted based on an autocorrelation analysis of the parallel signal, a communication apparatus starts communication using the changed communication parameter.
US08948233B2 Wireless relaying device, wireless transmission device, and wireless relaying method
Provided is a wireless relaying device, wherein system capacity can be increased by reducing power consumption required for relay processing at mobile stations equipped with relaying function. This is a relaying node (200) that relays communication between an originating node and a destination node, and that is provided with: a demodulation unit (203) that demodulates a signal transmitted from the originating node; a decoding unit (205) that obtains a signal destined for the relaying node (200), by decoding an amplitude bit from among a plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (203); and a modulation unit (208) that generates a relay signal destined for the destination node, by modulating a phase bit from among the plurality of bits that comprise each of the symbols of the signal demodulated by the demodulation unit (203).
US08948232B2 Method for transmitting a digital signal for a semi-orthogonal MARC system having half-duplex relay, and corresponding program product and relay device
A method and device are provided for transmitting a digital signal intended for a network having at least four nodes including two transmitters, a relay and a receiver separated from one another by non-orthogonal links, except between the relay and the destination, between which the link is orthogonal, implementing a spatially distributed network code. The method includes: encoding, in each transmitter, supplying a code word for every block of K bits of information; transmitting, in the transmitters, the code word during αN transmission intervals, αε[0,1]; jointly, iteratively detecting/decoding, in the relay, in order to separate interfering streams from the transmitters and to determine, for each stream, a vector representing the K bits of information associated with the code word; jointly encoding, in the relay, the two vectors in order to determine redundancy information, and scheduling the relays to transmit the redundancy information during the (1−α)N following transmission intervals.
US08948230B1 Multi-rate coexistence scheme in DSSS O-QPSK network
An IEEE 802.15.4 DSSS Offset-QPSK device is proposed that allows an existing system to transfer Offset-QPSK modulation signal into MSK modulation signal, then deliver the MSK modulation signal without DSSS to increase payload data transmission rate. On-the-fly detection of whether a low data rate or a high data rate encoding mode is used for a received frame is attained by the transmitter setting a predetermined bit in the frame length byte of a transmitting frame. Thus an extra high data rate transmission for IEEE 802.15.4 DSSS Offset-QPSK systems can be provided.
US08948226B2 Semiconductor device and method for producing light and laser emission
A method for producing light emission, including the following steps: providing a transistor structure that includes a semiconductor base region disposed between a semiconductor emitter region and a semiconductor collector region; providing a cascade region between the base region and the collector region, the cascade region having a plurality of sequences of quantum size regions, the quantum size regions of the sequences varying, in the direction toward the collector region, from a relatively higher energy state to a relatively lower energy state; providing emitter, base and collector electrodes respectively coupled with the emitter, base, and collector regions; and applying electrical signals with respect to the emitter, base, and collector electrodes to cause and control light emission from the cascade region.
US08948224B2 Semiconductor laser device and method of fabricating the same
The inventive concept provides semiconductor laser devices and methods of fabricating the same. According to the method, a silicon-crystalline germanium layer for emitting a laser may be formed in a selected region by a selective epitaxial growth (SEG) method. Thus, surface roughness of both ends of a Fabry Perot cavity formed of the silicon-crystalline germanium layer may be reduced or minimized, and a cutting process and a polishing process may be omitted in the method of fabricating the semiconductor laser device.
US08948222B1 Laser diode light source
A light source including a laser diode, and a method of operating a light source including a laser diode are disclosed. A driving current of the laser diode is dithered to cause a near-field light intensity distribution at an end facet to be perturbed, thereby reducing a time-averaged local intensity of the laser light at the end facet of the laser diode. The reduced time-averaged intensity reduces a possibility of a damage of the end facet.
US08948218B2 High power fiber laser system with distributive mode absorber
A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove modes propagating along the waveguide clad of the fiber. The mode absorber is configured with such an optimal length that the clad light may be removed in a localized manner, substantially uniformly removed over the entire length thereof. The absorber removing clad light in a unformed fashion includes a host material impregnated with diffusers.
US08948207B2 System and method for transporting time-division multiplexed communications through a packet-switched access network
A system and method are provided for providing access communications between customer locations and a core network service edge. Access flows are handled as carrier-tagged flows through a packet switched network comprising network elements that interpret and manipulate carrier tag values associated with traffic-bearing data frames. Time-division multiplexed (TDM) signals are transported as carrier-tagged flows between customer premise equipment that communicates using TDM signals and a service edge that communicates using TDM signals.
US08948204B2 Fabric channel control apparatus and method
A method for receiving packet data at a communication channel and transmitting the packet data over serial links of the communication channel. The packet data is sliced into n-bit data portions which are concatenated with a header prior to transmitting an n-bit portion across one of the serial links of the communication channel. The header may include an invert bit to alter the majority sign of an n-bit portion. Other aspects of the present invention are also described herein.
US08948203B1 Method and system for using asymetric transfer rates in receive and transmit paths of a network
Method and system for establishing asymmetric transfer rates between a first node and a second node communicating with each other via a network link using Ethernet as a network protocol is provided. The method includes determining during a negotiation process that the first node and the second node have compatible asymmetric capability to set a first rate for transmitting information via the network link and a second rate for receiving information via the network link using Ethernet as the network protocol; and establishing the first rate for transmitting information and the second rate for receiving information. Furthermore, the first node includes a first port having a receive segment and a transmit segment. The transmit segment and the receive segment have separate PLL modules such that the transmit segment can transmit data at a first rate and the receive segment can receive data at a second rate via the network link.
US08948201B2 Packet transfer apparatus
A packet transfer apparatus connects two networks of different protocols. The packet transfer apparatus, connected to a first communication network and a second communication network, performs the steps of: storing first destination correspondence information; receiving a packet of the first communication protocol; based on the first destination correspondence information, determining destination information of a packet of the second communication protocol corresponding to destination information of the received packet of the first communication protocol; generating the header of the packet of the second communication protocol, based on the determined destination information of the packet of the second communication protocol; converting the received one or more packets of the first communication protocol into one or more packets of the third communication protocol; and adding the generated header of the packet of the second communication protocol to the packets of the third communication protocol.
US08948200B2 Method and system for providing secure communications between proxy servers in support of interdomain traversal
An approach provides interdomain traversal to support packetized voice transmissions. A request is received and specifies a directory number for establishing a communication session from a first endpoint to a second endpoint. The first endpoint is behind a first network address translator of a first domain, and the second endpoint is within a second domain. A service provider network is accessed to determine a network address for communicating with the second endpoint based on the directory number, to determine existence of a second network address translator within the second domain, and to establish, if the network address can be determined, a media path between the first endpoint and the second endpoint based on the network address to support the communication session. An encrypted session is established with a proxy server according to a cryptographic protocol to support the media path. The proxy server resides within the second domain.
US08948198B2 Advanced wireless packet transmission scheme with enhancements to accommodate basic wireless packet transmission scheme
Methods and systems for signaling on a mixed-mode wireless network comprising a plurality of channels are provided. The mixed-mode wireless network includes high-throughput (HT) wireless devices and legacy wireless devices that use channels of the same width. The HT devices transmit data on at least two channels, while the legacy devices transmit on one channel. The distances between the HT channels and the distances between the legacy channels might differ, however, the channels used by the HT devices and the legacy devices may overlap. As a result, cooperation between the HT devices and legacy devices is provided to enable the devices to coexist on the same wireless network by minimizing collisions and interference. The HT devices are configured to send control information to the legacy devices to coordinate transmission by the HT devices with the legacy devices.
US08948197B2 System and method for communicating optical signals via communication cable medium
A data communication system is disclosed including a cable medium and modulator adapted to carry data and power between a high speed data source and a high speed data sink. Relatively high speed data (e.g. the TMDS data of an HDMI interface) may be carried on optical waveguides in the cable medium. Relatively low-speed data (e.g., DDC data and clock, and CEC of an HDMI interface) may be carried on a separate set of optical waveguides or wire mediums. The optical waveguides allow for substantially less signal distortion of the high-speed data, thereby allowing the cable medium to achieve much higher lengths without significantly affecting the high-speed signaling.
US08948196B2 Method and apparatus for sounding antennas in wireless communication
Methods and apparatuses are provided that facilitate sounding antennas in wireless communication. In an aspect, a method for wireless communication includes determining at least one resource reserved for transmitting a demodulation reference signal and transmitting a sounding reference signal over the at least one resource. In another aspect, a method of wireless communication includes signaling a parameter related to sounding multiple antenna ports, receiving signals from a device over the multiple antenna ports, and estimating a channel related to the signals at least in part by removing a precoding from the signals.
US08948195B2 Communication overhead reduction apparatus, systems, and methods
An apparatus and a system, as well as a method and article, may operate to transmit a first number of training symbols corresponding to a first number of communication chains to solicit a response including a second number of training symbols corresponding to a second number of communication chains. The first and second number of communication chains may form a portion of a multiple-input, multiple-output (MIMO) system.
US08948193B2 Methods for intelligent NIC bonding and load-balancing
Methods, devices, and media for intelligent NIC bonding and load-balancing including the steps of: providing a packet at an incoming-packet port of a gateway; attaching an incoming-port identification, associated with the incoming-packet port, to the packet; routing the packet to a processing core; passing the packet through a gateway processing; sending the packet, by the core, to the operating system of a host system; and routing the packet to an outgoing-packet port of the gateway based on the incoming-port identification. Preferably, the gateway processing includes security processing of the packets. Preferably, the step of routing the packet to the outgoing-packet port is based solely on the incoming-port identification. Preferably, an outgoing-port identification, associated with the outgoing-packet port, has an identical bond-index to the incoming-port identification. Preferably, the gateway includes a plurality of incoming-packet ports, a plurality of respective incoming-port identifications, a plurality of processing cores, and a plurality of outgoing-packet ports.
US08948188B1 Method and apparatus for managing traffic through a network switch
A network device including a classifier and a processor. The classifier is configured to select a plurality of packets according to a rule. The rule describes a characteristic associated with the plurality of packets selected by the classifier. The processor is configured to, during runtime, execute a program to compare a portion of the plurality of packets to one or more predetermined patterns. During the runtime, one or more additional predetermined patterns can be added to the program for comparison with a portion of one or more of the plurality of packets selected by the classifier without having to reboot the network device.
US08948187B2 Method for updating and managing synchronization identifier by using release messages or status request and response
A method for communicating additional network information using a synchronization identifier is presented. A synchronization identifier is defined. The synchronization identifier is used for the purpose of synchronizing communication between a Mobile Station (MS) and a network. In addition, the synchronization identifier is used to define additional functionality in the wireless network. As such, the synchronization identifier may be used to communicate information about wireless services and/or wireless components between the MS and the network.
US08948186B2 Expedited resource negotiation in SIP
A method of expediting resource negotiation in a modified Session Initiation Protocol (SIP) reduces the number of messages exchanged for resource negotiation, thereby reducing the latencies involved in session setup. The method entails sending an INVITE message having a modified SIP header containing an indication that the originator's terminal seeks a fast session setup. The INVITE message further contains a list of all codecs available at the originator's terminal and how many each type of media component are required. These codecs can be provided in an order of preference. The answerer selects the codecs for the requested media types from the list of available codecs without engaging in a back-and-forth resource negotiation for the codecs. The result is that the session can be set up with fewer messages which provides quicker session setup than in the prior art.
US08948181B2 System and method for optimizing next-hop table space in a dual-homed network environment
A method for optimizing next-hop table space in a dual-homed network environment is provided and includes associating an Emulated Switch Internet Protocol (ES-IP) address and an Emulated Switch Media Access Control (ES-MAC) address with an Emulated Switch Identifier (ES-ID) of an emulated switch connected to a dual-homed host having a host IP address in a network environment, and populating a host route table with a mapping between the host IP address and the ES-IP address. The method further includes receiving an outgoing packet with the host IP address as a destination address, determining the ES-IP address corresponding to the host IP address, sending out an ARP request for a MAC address corresponding to the ES-IP address, receiving the ES-MAC address, determining the ES-ID corresponding to the ES-MAC address, encapsulating the outgoing packet with the ES-ID, and forwarding the packet.
US08948180B2 Routing encapsulated data packets onto selected VLANs
A system and method are provided to route packets in a data center network. Individual packets are encapsulated at an edge of the data center network, so that each encapsulated packet includes a set of header fields, such as a tenant identifier. For each encapsulated packet, a hash class is determined from the set of header fields. A routing virtual local area network (VLAN) is selected for the packet based on the tenant identifier and the hash class.
US08948178B2 Network clustering
A network clustering facility is described. The network clustering facility receives a message having a location identification that identifies a destination for the message and comprises at least two components, selects a network node identified by the components of the location identification, determines whether a link exists to the selected network node, and identifies a best link to the selected network node. The network clustering facility comprises a clustering subsystem, an advertising subsystem, and a routing layer.
US08948175B2 Selecting a link of a link group based on contents of a concealed header
Methods, devices, and systems for selecting a link of a link group based on contents of a concealed header are disclosed. A network node operating method includes a first network node receiving a packet and concluding that a link group connecting the first network node to a second network node will forward the packet to the second network node. The method further includes determining that the packet includes a tunnel header and an original header concealed by the tunnel header, selecting one link from among a set of parallel links of the link group based at least on one or more fields of the concealed original header, and forwarding the packet to the second network node via the selected link.
US08948173B2 Control protocol encapsulation
Some bus protocols are useful for management of peripheral devices that exist on a computer's system bus. Such bus protocols include the industry standard architecture bus (ISA), peripheral component interconnect (PCI), PCI express (PCIe), etc. The usefulness of such protocols for control messages, interrupt management and more is limited to the short distances over which the protocols operate, usually measured in inches. The use of longer distance transport protocols, such as Ethernet to encapsulate and transport bus protocol messages allows the advantages of the short distant protocols to be used to control remote devices. A master device, with a controller or processor, may be used to manage the operation of a slave device using the bus or control protocol. Such management may include button presses, indicator lights, slave device configuration, etc. The slave device may have a low cost controller or ASIC to provide real-time operational functions, such as routing.
US08948172B2 System, method, and computer-readable medium for dynamic device discovery for servers binding to multiple masters
A system that facilitate broadcast of a device discovery beacon by a dynamic physical device wishing to bind to one or more control systems are provided. If the dynamic physical device comprises of server that is configured to bind to multiple master controllers, the dynamic physical device may include a device Type Flag and set the value of the device Type Flag to indicate the dynamic physical device comprises a server. On detection of the beacon, a master controller evaluates the device Type Flag if it is present in the device discovery beacon. If the device Type Flag is present and indicates the dynamic physical device comprise a server which may bind to multiple master controllers, the master controller may automatically load a device Module for the dynamic physical device and commence communications with the dynamic physical device with no manual intervention.
US08948171B1 System and method for IP multicast
A system and method for routing multicast packets. A multicast packet is received at an inbound interface on a switch/router. S,G data are obtained from the packet and used to search an OIL table. If the S,G data are found in the OIL table, the packet is forwarded on an outbound interface associated with the S,G data. If the S,G data are not found in the OIL table, the multicast routing table is consulted to obtain a longest match for the packet, and the packet is forwarded on the interface(s) which correspond to the longest match route. The multicast routing table may include a single entry, such that all packets that do not match an entry in the OIL are forwarded on the same outbound interface. The multicast routing table may include multiple entries with different covered ranges of (S,G).
US08948170B2 Automation fallback to P2P LSPs for MLDP built multipoint-trees
A method of using a point-to-point (P2P) label switched path (LSP) to transmit multicast data packets partially through a multiprotocol label switched (MPLS) network when one or more label switched routers (LSRs) of the MPLS are not multicast label distribution protocol (mLDP) enabled. The P2P LSP can be used to transmit multicast data packets to the head end of a point-to-multipoint (P2MP) LSP created with mLDP enabled LSRs. The P2MP LSP can be used to transmit the multicast data packets through the MPLS network to intended receivers that are external to the MPLS network. The P2MP LSP can be built from an egress edge LSR towards an ingress edge LSR, by mLDP enabled LSRs. The P2P LSP can be built from a core mLDP enabled LSR to the ingress edge LSR, across a non-mLDP enabled LSR between the core mLDP enabled LSR and the ingress edge LSR.
US08948166B2 System of implementing switch devices in a server system
A system of implementing switch devices in a server system. At least some of the illustrative embodiments are systems comprising a plurality of servers coupled to a midplane board, and a first and second switch slots (where each switch slot enables coupling of a switch device to the midplane board). The first and second switch slots accept switch devices one each in each switch slot, and the first and second switch slots accept a single switch device spanning both switch slots.
US08948162B2 Method and apparatus for processing VoIP data
A system and method for processing Voice over Internet Protocol (VoIP) data including determining whether received audio data is VoIP data, transferring, when received audio data is VoIP data, the received VoIP data to a first path, and transferring, when received audio data is not VoIP data, the received audio data to a second path. The system and method can process, when received audio data is VoIP data, the received VoIP data via a VoIP data processing path including a voice engine for VoIP, instead of an audio data processing path, irrespective of types of mobile devices and types of applications.
US08948161B2 Terminal-to-terminal communication connection control method using IP transfer network
The present invention is the communication system that the communication connection control between the terminals is performed, in the IP transfer network forming the closed network, by using the IP communication record. Further, the present invention relates to the communication system to perform the communication connection control between the terminals by obtaining the IP address of the server which manages the communication connection control of the destination terminal based on the telephone number or the host name of the destination terminal.
US08948153B2 Communication system, communication apparatus, computer-readable storage medium having stored therein communication program, and communication method
An example communication system includes: a search communication apparatus which searches for another communication apparatus; and a search subject communication apparatus which is searched for by the search communication apparatus. The search communication apparatus includes a search request transmitter which transmits a search request signal. The search subject communication apparatus includes: a search request receiver which receives the search request signal transmitted from the search communication apparatus; and a search response transmitter which transmits a search response signal which is a response to the search request signal received by the search request receiver, to the search communication apparatus. The search communication apparatus further includes a search response receiver which receives the search response signal transmitted from the search subject communication apparatus. The search request transmitter transmits information indicating a transmission enabled period in which the search response transmitter can transmit the search response signal.
US08948151B2 Methods and apparatuses for providing services to a dual mode GPRS/WLAN or UMTS/WLAN WTRU
Methods and network nodes are described. A network node receives an attach request message from a wireless transmit/receive unit (WTRU) via a cellular radio access network (RAN). The attach request message includes a mobile station (MS) radio access capability information element (IE), and the MS radio access capability IE includes a field that indicates whether the WTRU is capable of receiving services from a core network via a non-cellular wireless access network. The network node provides services from the core network to the WTRU.
US08948149B2 Access node/gateway to access node/gateway layer-2 connectivity (end-to-end)
Systems, methods, and apparatus for providing end-to-end L2 connectivity, are described. The system includes satellites configured to transmit data packets. The system further includes a first non-autonomous gateway in communication with the satellites. The first non-autonomous gateway is configured to receive the data packets from the satellites at L1, generate virtual tagging tuples within L2 packet headers of the data packets, and transmit the data packets each including a virtual tagging tuple. The system further includes a L2 switch in communication with the first non-autonomous gateway. The L2 switch is configured to receive the virtually tagged data packets and transmit the virtually tagged data packets. Further, the system includes a second non-autonomous gateway in communication with the L2 switch. The second non-autonomous gateway configured to receive the virtually tagged data packets and transmit the virtually tagged data packets to an entity based on the virtual tagging tuple associated with each of the virtually tagged packets.
US08948148B2 Apparatus and method for transmitting/receiving data in communication system
A data transmission apparatus in a communication system includes a reception unit configured to receive adjacent terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the terminals and one AP (access point); a verification unit configured to identify positions of the terminals within a service coverage of the AP through the adjacent terminal information, group the terminals into terminal groups through position-based grouping, and verify transmission possible times to the AP, in terminals included in the terminal groups; and a transmission unit configured to transmit the transmission possible times to the terminals included in the terminal groups through beacon frames in the AP, wherein, as the transmission possible times for the terminal groups, different time intervals are allocated in a beacon interval of the beacon frames.
US08948140B2 W-CDMA communication system and method of controlling CQI transmission cycle
A base station (20) and a mobile station (10) preliminarily register a transmission cycle of a CQI associated with every free space, in which channelization codes are not defined in a channelization code set of an HS-SCCH. In the case of setting of the transmission cycle of the CQI, the base station (20) transmits identification information of the free spaces associated with the transmission cycle to be set up to the mobile station (10) by the HS-SCCH. When the identification information of the free space is received by the HS-SCCH, the mobile station (10) transmits the CQI to the base station (20) at the transmission cycle associated with the free space.
US08948138B2 Signal compression for backhaul communications using linear transformations
A compression/decompression method for backhaul communication of a complex-valued radio signal between base stations and the network processing unit, such as a Central Processor of a Coordinated MultiPoint (CoMP) system, significantly reduces backhaul bandwidth. The spatial and temporal correlations of the wireless IQ signal are exploited in order to remove redundancy and substantially reduce signal bandwidth. Feature component signals of significance are extracted through linear transformation to form the radio signal, and are individually quantized, possibly at different bit rates in accordance with their relative importance. The transformation can either be pre-determined or computed in real-time based on the spatial and temporal statistics of the radio signal. In the latter case, the transformation matrix or matrices are also sent over the backhaul in order to allow the radio signal to be reconstructed at the receiving end. Different methods of generating the transformation matrices are proposed.
US08948136B2 Resource allocation in a communication system
A method of allocating resources in a communication system and a station for the communication system is disclosed. The communication system is such that a plurality of user equipment can communicate data on a dedicated channel. In the method a request for communication resources may be sent from a user equipment to the station on a first protocol layer. Priority information is obtained at the station from a data flow on a second protocol layer. Communication resources may then at least partially be allocated based on said priority information.
US08948132B2 Device and method for maintaining a communication session during a network transition
Provided are a device and method for maintaining a communication session during a network transition. In one example, the method includes monitoring, by a client, a connection with a first network to determine whether a signal strength of the connection falls below a threshold value. The client establishes a connection with a second network if the signal strength of the connection with the first network falls below the threshold value. Establishing the connection with the second network includes obtaining an address and port assignment corresponding to the client from the second network. The client uses the obtained address and port assignment to maintain a communication session during the changeover from the first network to the second network.
US08948131B2 Radio communication system, radio communication method, and gateway
The number of required GWs is reduced to suppress the number of facilities by storing MS information on an M2M connection in an external device, and cooperating with the GWs such as mobile GWs in a mobile system in which the M2M connection and a connection other than the M2M connection are mixed together. When an MS migrates to an idle state, the MS stores the MS information in the external device once, and deletes information from an ASN-GW. When the MS migrates from the idle state to an active state, the ASN-GW again draws the MS information from the external device, and again stores the MS information within the device, to thereby enable a communication. If a resource of the active state is short within the device, a migration from the idle state to the active state is enabled with the use of another ASN-GW.
US08948130B2 Zone switching method in a broadband wireless access system having regard to security association and device for same
The present invention relates to a wireless access system, and more particularly, to a method for supporting security during a handover performance through a zone switch and to a device performing same. According to one embodiment of the present invention, switching a zone by a terminal in a broadband wireless access system comprises the following steps: creating at least one service flow in a first zone that supports the legacy mode of a base station; receiving at the base station a first message, which indicates a zone switch to a second zone that supports an advanced mode; and performing the zone switch, wherein performing the zone switch may further comprise a step for receiving from the second zone a second message, which includes security association information that indicates the security association applied to at least one service flow in the second zone.
US08948129B2 Methods and apparatus for virtual soft handoff
In some embodiments, a non-transitory processor-readable medium includes code to cause a processor to receive at a tunnel server, a data unit addressed to a communication device, and define, a first instance of the data unit and a second instance of the data unit. The first instance of the data unit is sent to the communication device via a first tunnel defined between at least the tunnel server and a first base station associated with a first network. The second instance of the data unit is sent to the communication device via a second tunnel defined between at least the tunnel server and a second base station associated with a second network. The second instance of the data unit is dropped by the communication device when the first instance of the data unit is received before the second instance of the data unit.
US08948126B2 Scheduling TDD-LTE measurement in TD-SCDMA systems
Certain aspects of the present disclosure propose techniques for performing a time division duplex-long term evolution (TDD-LTE) measurement in a time division synchronous code division multiple access (TD-SCDMA) system. Certain aspects provide a method that generally includes obtaining measurements of downlink (DL) transmission from a base station (BS) of a second radio access technology (RAT), maintaining uplink (UL) transmission with a BS of a first RAT while obtaining the measurements, and performing network acquisition operations with the BS of the second RAT based on the measurements.
US08948125B2 Method and system for handover and domain transfer in a telecommunications system
A method and system for handover of a User Equipment (UE) from a source packet system to a target packet system in a packet switched domain of a wireless communications network while transferring the UE to a circuit switched domain. The target packet system includes a radio access network portion and a first core network portion. The circuit switched domain includes a second radio access network portion and a second core network portion. The UE performs an attachment/registration/update procedure towards the second core network portion and/or a signaling connection establishment before the handover between the source packet system and the target packet system is executed.
US08948124B2 Wireless system
The capacity of a cellular wireless system is increased by operation of base stations or base station sectors arranged to re-use radio resource elements that are used by neighboring base stations or base station sectors, in conjunction with operation of relay stations, which are similarly arranged to re-use radio resource elements used by neighboring relay stations, and where the radio resource elements re-used by the relay stations are different to those used by the base stations. The relay stations provide coverage, particularly in the areas at the boundaries between the areas of coverage of base stations that suffer from interference between signals transmitted from the respective base stations. In addition, the relay stations generally increase the average available carrier to interference ratio compared with a system in which base stations alone are deployed. The scheme for the allocation of radio resource elements ensures in particular that interference is avoided between signals transmitted from a base station and signals transmitted from a relay station in radio resource elements allocated to control data.
US08948118B2 Aperiodic triggering of channel quality information using physical downlink control channel
The invention relates methods for triggering channel quality feedback for at least one of plural component carriers of a communication system available for downlink transmission. The invention suggests a mechanism for triggering channel quality feedback from a terminal where the downlink control signaling overhead for the selection of component carrier(s) to be reported on is minimized. One aspect of the invention is a new interpretation of a predetermined format for dedicated control information comprising a CQI request flag, which is depending on the status of the CQI request flag. In case the CQI request flag is set at least one further bit of the dedicated control information is interpreted as information indicative of the one or more component carriers available for downlink transmission to the terminal and the terminal is providing channel quality feedback on the channel quality experienced on the indicated component carrier or component carriers.
US08948115B2 Method for controlling uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, and apparatus for performing the method
The present invention relates to a terminal which controls uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, and a method in which the terminal performs the control. In a terminal which controls uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, a receiver receives, from a base station, an indicator that concerns the determination of the transmission power for each code word of the plurality of code words. A processor determines uplink transmission power for transmitting the plurality of code words on the basis of the indication value of the indicator. If the indication value is zero, the processor allocates the same uplink transmission power to each of the plurality of code words.
US08948112B2 Mobile communication system, base station apparatus, mobile station apparatus, mobile communication method, and integrated circuit
Provided are a mobile communication system and a mobile communication method in which a base station apparatus and a mobile station apparatus can efficiently transmit control information in case of communication is conducted by using a wide frequency band constructed by a plurality of component carriers. The mobile communication system in which the base station apparatus and the mobile station apparatus communicate by using the plurality of component carriers, wherein the base station apparatus allocates resources to the mobile station apparatus for transmitting HARQ control information, and the mobile station apparatus uses the allocated resources to transmit to the base station apparatus the HARQ control information for a physical downlink control channel and/or a physical downlink shared channel which are transmitted on a plurality of downlink component carriers, and also a scheduling request for requesting the allocation of uplink data transmission.
US08948109B2 Method and a base station for controlling downlink transmission power, and a method and a user equipment for receiving a PDSCH
A ratio of data transmission power of a layer per RE to RS transmission power of the layer per RE is predefined according to rank. A BS determines downlink transmission power for a PDSCH according to the predefined rank and a UE assumes that the PDSCH and UE-specific RS(s) for the PDSCH is transmitted with power satisfying the ratio.
US08948107B2 Method and apparatus for resource allocation for device-to-device communication
In one embodiment, the method of allocating network resources by a base station of a network includes allocating at least two blocks of an uplink channel of the network to a direct communication link between a first user equipment (UE) and a second UE. The method further includes determining that a rate of data transfer on the direct communication link is greater than a rate of data transfer for uplink communications between one of (i) the first UE and base station and (ii) the second UE and the base station. The method further includes re-allocating, based on the determining, at least one of the at least two uplink blocks allocated to the direct communication link to at least one of uplink communications by the first UE, the second UE, or other UEs with the base station.
US08948103B2 Using user device feed back to dynamically allocate network resources for provisioning services
A system may receive, from one or more user devices, service information that identifies applications that are being accessed by the user devices and levels of service quality, received by the user devices, when accessing the applications; identify, based on the service information, that a user device is accessing an application at a level of service quality that is less than a threshold; assign, one or more quantities of bandwidth, to the applications, based on the service information; and transmitting, to the base station, scheduling information that identifies how the quantities of bandwidth are assigned to the applications, where transmitting the scheduling information allows the base station to use a quantity of bandwidth, assigned to the application, to provide the application to the user device at a level of service quality that is not less than the threshold.
US08948097B2 UE-RS sequence initialization for wireless communication systems
Pseudo-random sequences of a plurality of user equipment specific reference signals (UE-RSs) for use by a plurality of user equipments (UEs) are initialized, the initialization of each pseudo-random sequence associated with each UE-RS being independent of a specific UE identifier and independent of a resource bandwidth assigned to a specific UE. Pseudo-random sequences of the UE-RSs are generated. At least one of the pseudo-random sequences is mapped to a portion of common resources for at least one UE among the plurality of UEs.
US08948096B2 Transmission method, radio base station and mobile station
In a transmission method, a service area covered by a first cell is provided with a plurality of second cells with a smaller radius than the first cell. A first radio base station belongs to a first cell while the second radio base stations belong to different second cells. A transmitter of the first radio base station transmits a synchronization channel in a given band while a transmitter of each second radio base station transmits a synchronization channel in a band that is different from the given band and also from those of other second radio base stations. A control unit of a mobile station narrows down bands to be observed for detecting synchronization channels to the given band or, if there are some of the second cells that the mobile stations are allowed to access, to the given band and the bands corresponding to the accessible second cells.
US08948093B2 Rank adaptation for an open loop multi-antenna mode of wireless communication
To perform rank adaptation for a mobile station in a wireless network, it is determined whether the mobile station is fast moving. In response to determining that the mobile station is fast moving, an open loop multi-antenna mode is selected to perform wireless communication between the mobile station and a base station. Also, selection is made from among plural ranks for the wireless communication according to the open loop multi-antenna mode between the mobile station and the base station.
US08948090B2 Multi-point PUCCH attachment
Various aspects of the present disclosure are directed to periodic over-the-air channel state information (CSI) reporting to serving cells and one or more non-serving cells via a control channel multi-point attachment. The channel state information report may be transmitted based on information indicating how to transmit the channel state information report to the non-serving cell. The information indicating how to transmit the channel state information report may be provided by the serving eNodeB. The information may include a periodicity, offset parameters, timing advance commands, power control commands, and/or an aperiodic report request.
US08948089B2 Device, system and method of communicating aggregate data units
Some demonstrative embodiments include devices, systems and/or methods of communicating aggregate data units. For example, a device may include a wireless communication unit to communicate an aggregate data unit including a plurality of data units in an increasing order of sequence numbers assigned to the data units, such that a first data unit having a first sequence number always precedes a second data unit having a second sequence number, greater than the first sequence number.
US08948087B2 Method and system for implementing domain selection during the terminated call
The present application discloses a method and a system for implementing domain selection during a terminated call, in which an application server (AS) sends, according to a received call request message, a query request message to a home subscriber server (HSS); the HSS queries, according to the query request message, a packet switching (PS) domain mobility management network element to obtain information of a called terminal and/or a network accessed by the called terminal in the call request message; the HSS feeds back the obtained information of the called terminal and/or the network accessed by the called terminal to the AS; and the AS selects a domain to which a call message is to be routed according to the information of the called terminal and/or the network accessed by the called terminal.
US08948086B2 Communication method with user equipment and H(e) NB for minimizing access network extension impact
A communication method is adapted to a mobile communication system including a user equipment, a core network, and a small-scale radio base station, namely, a H(e) NB. The H(e) NB relays packets of data between the user equipment and the core network by way of radio communication with the user equipment and by way of wired communication with the core network. The H(e) NB monitors communications of the user equipment so as to compare the user communication information with a threshold value used for discerning unauthenticated communication from received communication, thus reducing the amount of data transferred between the core network and the user equipment performing the unauthenticated communication with exploitation. Thus, it is possible to prevent throughputs of data from decreasing due to unauthenticated exploitation of the H(e) NB with respect to the authenticated subscriber.
US08948085B2 Methods and apparatus for best-effort radio backhaul among cells on unlicensed or shared spectrum
Methods and apparatus for wireless communication are described. A first base station may provide first backhaul information using a shared channel to a second base station. The shared channel may be white space channels, Authorized Shared Multiuser (ASM) channels or an Instrumentation, Scientific, and Measurement (ISM) channels. The first base station may further provide second backhaul information using a legacy backhaul channel.
US08948082B2 Method and apparatus or allocating resources to user equipments in a telecommunications system
The present invention relates to a method and a radio base station (700) for allocating resources to a UE such that the UE can transmit at least channel feedback information to the radio base station (700). According to exemplary embodiments of the present invention, the radio base station (700) is configured to take the possibility of a scheduling request transmission from the UE into account when allocating the channel feedback information resources in order to avoid wasting of uplink resources.
US08948080B2 Methods comprising satellites having a regenerative payload, onboard computer, payload interface and interference elimination system
Systems and methods of satellite communications for moving terminals, including but not limited to on-the-move and mobile terminals (e.g., on-the-pause terminals), are implemented in certain embodiments using smaller antennas (e.g., aperture area with diameter less than 50 cm), open standard waveforms to secure availability from several suppliers, payment for service only when using the terminal, interference avoidance to adjacent satellites, and low cost. Low cost is achieved in part by operating at frequency bands that are currently operated by terrestrial microwave links so that existing low cost microwave components are utilized. The system also includes an interference elimination system that continuously monitors for interference to adjacent satellites from a user terminal's uplink signal. If interference is detected, the interference elimination system remedies the interference by performing one or more of the following: shutting down the interfering terminal(s), changing transmission parameters, changing the beam coverage on ground, changing the frequency of the affected traffic, or moving the satellite to a new orbital position. The interference elimination system may also transit the interference information to a control center.
US08948071B2 Signalling channel and radio system for power saving in wireless devices
Wireless devices, transmitters, systems and methods are provided that have a narrow band signalling channel and a wide band channel, for example an OFDM channel. In order to save power, the wireless device is nominally powered down with the exception of a receiver specific to the narrow band signalling channel. Once instructed to do so over the narrow band signalling channel, the wireless device wakes up the rest of its wide band receive circuitry.
US08948070B2 Scheduling method and system for high speed uplink packet access
A scheduling method and system for high speed uplink packet access which comprises the following two-level scheduling: a first level scheduling for distributing the target rise over thermal (RoT) of each user equipment (UE); and a second level scheduling for tracking the assigned to target RoT via transmitting a relative authority instruction, according to the current authority and channel quality of the UE.
US08948069B2 Methods and systems for improving response message transmission reliability
Certain embodiments of the present disclosure improve a robustness of some critical MAC management response massages transmitted from a base station (BS) to a mobile station (MS). In this way, a reliability of transmission can be increased and a messaging failure that results in out of sync state between the MS and the BS can be avoided.
US08948065B2 Information processing system and information processing method
A handheld terminal 200 performs wireless communication with a game apparatus 103 and determines whether the wireless communication with the game apparatus 103 is possible. The game apparatus 103 performs wireless communication with the handheld terminal 200 and determines whether the wireless communication with the handheld terminal 200 is possible. The game apparatus 103 performs a return home determination process, based on the determination about whether the wireless communication is possible, when the wireless communication with the handheld terminal 200 has become, after having become disabled, enabled again.
US08948061B2 Method of intercepting VOIP communications
A method (250) of intercepting a VOIP communication is disclosed. The method (250) includes: detecting (260) whether a subscriber-caller to be monitored goes off-hook; intercepting (270) the subscriber-caller when off-hook, if lawful intercept is authorized; and sending (280) substantially all communications between the subscriber-caller and a subscriber-callee, to a subscriber-agent. Advantageously, this can provide an efficient, useful, repeatable and scalable way to intercept VOIP communications.
US08948057B2 Securing uniform resource identifier information for multimedia calls
A session request from a first subscriber is received at a first network component of a packet-based network. The session request comprises a request to establish a communications session between the first subscriber and a second subscriber. In the event the session request originated in a trusted network, the first network component permits access to unique resource identifier (URI) information associated with the second subscriber for use in establishing the communications session via the packet-based network. In the event the session request did not originate in a trusted network and in response to determining a security configuration associated with the second subscriber allows the first subscriber to access the URI information under the circumstances, the first network component permits access to the URI information for use in establishing the communications session via the packet-based network. In response to determining the security configuration prohibits access to the URI information by the first subscriber under the circumstances, the first network component forwards the session request to a second network component so as to establish the communications session via a public switched telephone network.
US08948056B2 Spanning-tree based loop detection for an ethernet fabric switch
One embodiment of the present invention provides a switch. The switch includes a local database, a packet processor, a data management module, and a tree construction module. The packet processor extracts spanning tree information associated with a remote switch. The data management module stores the extracted spanning tree information in the local database. The tree construction module assigns an interface state associated with a spanning tree to a local interface based on the extracted spanning tree information.
US08948055B2 Resilient interworking of shortest path bridging and Ethernet virtual private networks
An Ethernet network, an Ethernet method, and an Ethernet node provide active-active dual-homed interworking between two Ethernet networks. The network, method, and node can include two nodes interconnected each to a Shortest Path Bridging (SPB) network and an Ethernet Virtual Private Network (E-VPN). The two nodes can utilize a same Ethernet Segment Identifier (ESI) for the E-VPN network to cause the dual-homed links to appear as a single link from an E-VPN perspective and a dummy node to advertise an extra node in the SPB network enabling two paths therein.
US08948053B2 Apparatus and method for detecting critical nodes and critical links in a multi-hop network
A method includes obtaining a matrix defining a topology of a multi-hop network, where the topology identifies nodes and links between the nodes in the multi-hop network. The method also includes identifying one or more Eigenvalues and/or one or more Eigenvectors of the matrix. The method further includes determining whether the topology of the multi-hop network defines a disconnected network using the one or more Eigenvalues and/or the one or more Eigenvectors. For example, one or more Eigenvalues of the matrix can be identified, and a determination can be made whether a second smallest Eigenvalue equals zero. As another example, Eigenvectors corresponding to two smallest Eigenvalues of the matrix can be identified, and a determination can be made whether the Eigenvectors have opposite zero and non-zero entries such that, for all entries in the Eigenvectors, an ith entry in one Eigenvector is zero while an ith entry in another Eigenvector is non-zero.
US08948051B2 System and method for efficient MVPN source redundancy with S-PMSI
A system, method and apparatus for source redundant MVPN in which a number of Interface Indices is reduced by leaf node Incoming Label Maps (ILM) including one or more Interface Indices common to multiple tunnels.
US08948039B2 Packet collisions and impulsive noise detection
A method includes determining a first Signal-to-Noise Ratio (SNR) average for a first symbol set of at least one or more first symbols in one or more packets. The method includes determining a second SNR average for a second symbol set of at least one or more second symbols in the one or more packets. The method also includes determining a first difference between the first SNR average and the second SNR average. In response to determining that the first difference exceeds an SNR threshold, the method includes determining that a first channel event has occurred in the one or more packets at least within the first symbol set and the second symbol set and in response to determining that the first channel event has occurred, determining is to remain at the first data rate or at a second data rate that is higher than the first data rate.
US08948038B1 Augmenting spectrum sharing using network measurements
A method of operating a spectrum system includes issuing commands to a transmitter in communication with the spectrum system, receiving network measurements from one or more wireless terminals, comparing, using a computing processor, the network measurements with the issued commands, and determining a compliance of the transmitter to the issued commands.
US08948036B2 System and method for using distributed network performance information tables to manage network communications
A system, method and network communications device including a processing unit configured to communicate data packets with one or more network communications devices. The data packets include network performance information generated by the one or more network communications devices in response to receiving a portion of the data packets. The network communications device further includes a memory in communication with the processing unit. The memory is configured to store a table containing network performance information associated with the node segments through which the data packets are communicated with the one or more network communications devices. The processing unit is further configured to process the data packets to store the network performance information in the table. The network performance information is utilized to alter future communications of the data packets through the node segments.
US08948035B2 Wireless communication systems employing communication schemes
A terminal speed identification unit identifies the moving speed of a wireless terminal currently in communication. A ranging control unit sets the transmission cycle of a ranging signal of a wireless terminal moving at a speed greater than or equal to a predetermined speed shorter than the transmission cycle of a ranging signal of a wireless terminal moving at a speed below the predetermined speed. A transmission unit transmits a signal notifying the transmission cycle of a ranging signal to the wireless terminal. A reception unit receives a ranging signal from a wireless terminal currently in communication.
US08948034B2 Method and system for the detection, transmission and analysis of safety-related signals
The invention relates to a method and a system for detecting, transmitting, and analyzing at least one safety-related signal (S1 . . . Sn), wherein the at least one safety-related signal (S1 . . . Sn) is detected using at least one detection unit (EE1 . . . EEn) and is transmitted to at least one analyzing unit (AE1 . . . AE4) via a radio system (FS). In order to simplify the detection of safety-related signals and improve the transmission thereof via a faulty radio path, at least two safety-related signals (S1, S2) are independently detected and transmitted to the analyzing unit (AE1 . . . AE4) via the radio system (FS) so as to allow a dangerous action to be carried out, and an output signal (FRS) for allowing a dangerous action to be carried out is generated by logically combining the received safety-related signals (S1 . . . Sn).
US08948033B2 Communication system, communication apparatus, and ring network monitoring method
A communication apparatus forming a ring network sends a test frame that is not designed to be discarded at a block point in the ring network established to discard the user frame and that is configured to have a data size randomly selected from the data sizes permitted for the user frame, from a first communication port connected to a transfer channel in a first direction in the ring network. The communication apparatus determines that the transfer status of the user frame in the ring network is normal when the sent test frame is received via a second communication port connected to a transfer channel in a second direction in the ring network in a predetermined manner.
US08948029B2 Naming network interface cards
A method and system for network interface naming is described.
US08948028B2 Reporting of timing information to support downlink data transmission
Techniques for reporting timing information to facilitate data transmission on a downlink are described. A user equipment (UE) may receive signals from a plurality of cells available for data transmission to the UE. Each cell may have a different propagation delay to the UE. The UE may determine timing information based on the received signals and may report the timing information to one or more of the cells. The timing information may include a receive time of each cell at the UE. The UE may receive a data transmission from at least one cell, which can be selected from the plurality of cells, based on the timing information. The at least one cell may provide a coordinated or a non-coordinated data transmission. A coordinated transmission mode may be determined based on the timing information and can include, for example, a joint transmission, a coordinated beamforming, or a coordinated silencing.
US08948026B2 User-preference-based DSL system
Operator-controlled implementations of user preferences are provided when feasible. User preference data is obtained by the operator and compared to operational characteristics and parameters of a communication system, such as a DSL system, to determine whether one or more of the user preferences can be implemented in the communication system. When implementation of a user preference would violate operational rules of the system, or where implementation would adversely affect system operation, the preference need not be implemented. However, when a user preference can be implemented in the system without causing problems, the operator can implement (or permit another party to implement) the user preference to effect the user's desires. The user preference data can be obtained directly from users (for example, by surveys and other direct user feedback) or can be obtained indirectly (for example, by constructing a Hidden Markov Model that shows user preferences). The operator may collect the user preference data from a user set (for example, a single user or a plurality of users). The user preference data can be compared to 2 or more performance metrics that can be adjusted, to the extent feasible, to implement the user preference data.
US08948025B2 Remotely configurable device agent for packet routing
A method performed by a first client-side device agent, instantiated on a hardware device that is configured to connect to a data-handling network via associated device circuitry, comprising receiving configuration data in the form of non-executable data, configuring the first client-side device agent such that the first client-side device agent has a first configuration specifying a first application on the hardware device, monitoring substantially in real-time a flow of packets between the of applications and a server-side device, selecting packets based on their association with the application, modifying or appending packet header information for the selected packets, and transmitting modified or appended packets configured such that they are routed based on the modified or appended packet header information.
US08948022B2 Method and system for analyzing radio performance during over-the-air operation
An apparatus for determining operating characteristics of radio-frequency (RF) transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises at least one signal sensor for receiving the RF signals, each sensor responsive to the RF signals received at a plurality of antennas or received at a directional antenna, an analyzer for determining signal parameters of received RF signals and for determining operating characteristics of the transmitting devices from the signal parameters, wherein each RF signal includes an identifier of the transmitting device, the apparatus using the identifier to link operating characteristics determined from the RF signals to the transmitting device, and a graphical user interface for displaying the operating characteristics for each transmitting device.
US08948018B2 Integrated ethernet over coaxial cable, STB, and physical layer test and monitoring
In a method of testing a residential broadband communication network, a residential gateway or set top box (STB) performs one or more single-ended parametric tests of the residential network that runs therebetween. The residential gateway or STB also performs one or more single-ended reflectometry tests of the residential network that runs therebetween. The residential gateway and the STB perform one or more dual-ended tests of the residential network that runs therebetween. The residential gateway dispatches the results of the foregoing tests to either: a device on the residential network, a device of another network that supplies broadband services to the residential network, or an intelligent device coupled to the residential gateway.
US08948014B2 System and method for load balancing MMEs and MME pools
A system, method and apparatus for policy-driven load balancing of MMEs and MME pools by migrating eNodeBs service responsibilities among MMEs and/or MME processing components or modules.
US08948013B1 Selective packet sequence acceleration in a network environment
At least one first frame of a first data flow can be received and passed to a general processor to inspect the at least one first frame. A flow acceleration request can be received including a set of conditions for accelerated processing, by a network processor, of a set of frames in the first data flow subsequent to the at least one first frame. At least one subsequent frame in the set of frames can be processed, using the network processor, in connection with forwarding of the subsequent frame to at least one remote network node, where processing of the subsequent frame is accelerated relative to processing of the at least one first frame and based, at least in part, on the set of conditions included in the flow acceleration request.
US08948010B2 Adaptive cross-network message bandwidth allocation by message servers
The network device is described that comprises an allocator to adaptively allocate respective event message rate limits to client network devices that is in communication with an event-based system logging server to send event messages to the logging server for processing. The adaptively allocated event message rate limits are communicated to the client network devices so that limiting of a global rate of event messages received by the logging server comprises limiting the respective rates at which the client network devices can transmit event messages to the logging server. Measurement of respective event message rates comprises a count of event messages actually received by the logging server from the corresponding client device within a defined time window.
US08948008B2 Drop sensitive prefix (BGP path) attribute modification
In a system including a first autonomous system (AS) configured to have a first gateway router forward data associated with a set of IP address prefixes, to a second AS via a link to a first eBGP peer device of the second AS, the problem of data packets dropped at an output of the first gateway router while the link is still “up” and an eBGP session between the first gateway router and the first eBGP peer is still up, is solved by (1) receiving information about dropped data packets at an output of the first gateway router, (2) determining whether a data traffic offload condition exists using the received information, (3) changing path attribute(s) of at least some of the IP address prefixes of the set if a data traffic offload condition exists, such that the first gateway router will be less likely to forward data associated with those IP address prefixes, and (4) generating a BGP update message including the changed path attribute(s) for communication to at least one iBGP peer device in the first AS.
US08948007B2 Interoperable quality of service pre-negotiation
A system configured to receive a request to identify a quality of service (QoS) policy to be used to process traffic that is received from a user device associated with another network; obtain an interoperable QoS policy, where the interoperable QoS policy identifies a first QoS level, associated with the other network, that corresponds to a type of traffic received from the user device; obtain, from the interoperable QoS policy, a second QoS level that corresponds to the first QoS level; and send, to a device, an instruction to process the traffic based on the second QoS level.
US08948006B2 System for managing uplink quality of service (QoS) in cellular network
A cellular communication system includes a method for managing uplink (UL) quality-of-service (QoS) in a two-hop wireless cellular communication system, including determining a count of UL QoS requests received from each user equipment (UE) and determining a served-to-requested ratio that is a ratio of a the number of bytes of UL data served to each UE by a mobile relay to the number bytes of UL data requested by each UE from the mobile relay. A UE subsystem of the mobile relay determines if any UEs are experiencing low UL QoS based on the number of UL QoS requests and the served-to-requested ratio. In response, a macro base station allocates network resources for improving the UL QoS provided to the set of UEs.
US08948005B1 Topology determination for an optical network
Techniques are described for determining the topology of an optical network. A computing device receives a message on a data communication network after a first device in an optical network receives an optical pulse pattern on an optical fiber in the optical network. The computing device generates topology data using the message. The topology data indicates that a second device is physically connected in the optical network to the first device when the received optical pulse pattern matches an optical pulse pattern sent by the second device.
US08948003B2 Fault tolerant communication in a TRILL network
Each of first and second bridges of a data network having respective external links to an external node implement a network bridge component that forwards traffic inside the network and a virtual bridge component that forwards traffic outside of the network. A virtual bridge is formed including the virtual bridge components of the first and second bridges and an interswitch link (ISL) between the virtual bridge components of the first and second bridges. Data frames are redirected via the ISL in response to a link-down condition of one of the external links.
US08948002B2 Method and device for preventing repeated refreshing of address table of Ethernet ring network node
A method and a device for preventing repeated refreshing of an address table of an Ethernet ring network node are provided. After a state of a port of the Ethernet ring network node is changed to a blocked state, it is determined that whether the Ethernet ring network node is an RPL neighbor node and whether the blockage is triggered by an RPL Blocked protocol frame. If so, the Ethernet ring network node stores refreshed record information corresponding to its two ports on the ring. The problem that an RPL neighbor node refreshes an address table repeatedly in the scenario of switchback of an Ethernet ring network can be effectively solved via the aforementioned method and device, thereby reducing flow broadcast during protection switching of the Ethernet ring network and improving the switching efficiency.
US08948000B2 Switch fabric management
Techniques are disclosed for managing a switch fabric. In one embodiment, a server system is provided that includes a midplane, one or more server cards, switch modules and a management controller. The midplane may include a fabric interconnect for a switch fabric. The one or more server cards and the switch modules may be operatively connected to the midplane. The switch modules may be configured to switch network traffic for the one or more server cards. The management controller may be configured to manage the switch modules via the fabric interconnect.
US08947999B2 Shared protection method and apparatus for reconfigurable optical add-drop multiplexer (roadm) based mesh networks
Example embodiments of a method and corresponding apparatus for sharing protection resources in a reconfigurable optical add-drop multiplexer (ROADM) based mesh network are presented. The use of dedicated 1+1 methodologies for protection in a mesh network is reliable, but requires a large amount of equipment redundancy, as well as a large associated cost. According to the embodiments of the present method and apparatus, the total number of protection transponders needed to support single failures in a mesh network is reduced by implementing a preconfigured protection cycle (p-cycle) in the mesh network and configuring nodes along the p-cycle to share protection transponders. Accordingly, the embodiments of the present method and apparatus allow for reliable protection against single failures while lessening the amount of equipment redundancy and reducing the associated cost.
US08947993B2 Methods of transmitting using filtering in the time domain and related devices
Methods may be provided to transmit data from a wireless terminal operating in a radio access network. For example, sampling rate conversion may be performed on a serial stream of modulation symbols to generate sampling rate converted symbols, and the sampling rate converted symbols may be transmitted over a wireless channel to a node of the radio access network. Related terminals are also discussed.
US08947987B1 Systems and methods for providing capping layers for heat assisted magnetic recording media
Aspects of the present invention are directed to heat assisted magnetic recording (HAMR) media with a CoCrPtB based capping layer design that is capable of reducing switching field distribution and boosting signal-to-noise ratio of HAMR media. In one embodiment of the invention, a recording medium for heat assisted magnetic recording (HAMR) includes a substrate, a magnetic recording layer on the substrate, and a capping layer on and directly in contact with the magnetic recording layer. The capping layer includes CoCrPtB.
US08947986B1 Heat sink for thermally assisted magnetic recording (TAMR)
A TAMR head is disclosed wherein a heat sink with a bilayer configuration surrounds the main pole. There is a planar plasmon generator (PPG) with a front peg portion and a larger back portion between a waveguide and a main pole bottom surface. The PPG generates a surface plasmon mode and heats a spot on a magnetic medium during a write process. A first heat sink layer made of Au contacts a back section of the top surface in the PPG back portion to enable efficient dissipation of heat away from the PPG. The second heat sink layer may be Ru and serves as a barrier between the main pole and first heat sink layer to prevent Au migration into magnetic material, and is thermally stable to at least 450° C. to prevent a thermal breakdown of the heat sink material in proximity to the PPG front end.
US08947984B2 Particulate magnetic recording medium and magnetic recording device
The magnetic recording medium is a particulate magnetic recording medium for heat-assisted recording, as well as includes a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic organic material support and a heat-diffusing layer of higher thermal conductivity than the magnetic layer between the nonmagnetic organic material support and the magnetic layer.
US08947980B2 Micro-geophone
A micro geophone having pole pieces do not extend out around the sides of the magnet, thereby allowing a reduced geophone diameter for a given magnet diameter. The pole pieces are adhesively bonded to the magnet using an adhesive, which may be made suitably electrically conductive by silver or nickel fillers or non-conductive by mica fillers such as borosilicate glass micro-spheres. Axial space is economized by eliminating traditional spider retaining rings. The spider springs are seated directly against the coil form and secured by adhesive fillets disposed on the outward-facing spring circumferences. The spider springs include circumferential notches to receive adhesive. A two-piece bimetallic coil form of aluminum and a heavier material, joined by adhesive, is provided. Headers are affixed to the housing within the seats by adhesive. A straight or rounded chamfer at each of the geophone ends allows the overall geophone dimensions to be maximized.
US08947977B1 Fuzing arrangements
A proximity fuzing arrangement for fuzing warheads carried by missiles which reduces the likelihood of the missile being detonated prematurely by such cases as rain or enemy counter measures. The fuzing arrangement includes at least two channels responsive to target signals in different frequency bands and also includes means for comparing the signals in these channels to distinguish between spurious signals such as enemy counter measures or rain and so called “true target signals”.
US08947974B2 Seismic measurements while drilling
A downhole tool starts recording seismic energy. During the recording time, a surface seismic source is activated a specified number of times with a nominally defined separation between successive. The downhole sensor receives seismic waves resulting from the activation, but the time of the shooting sequence is not known downhole. The recorded data stream is processed and converted in real-time into seismic traces. A predefined number of traces are stacked and the quality of this sliding stack is used to detect time of the shooting sequence. The method could be used to detect one or several shooting sequences during a measurement window.
US08947972B2 Dynamic address grouping for parallel programming in non-volatile memory
A non-volatile memory system evaluates user data before writing in order to potentially group addresses for writing within a cycle. The system can determine which sense amplifier addresses of a column address will be programmed in a column address cycle. The number of bits that will be programmed is compared with an allowable number of parallel bits. The system generates groups of sense amplifier addresses based on the comparison. The system generates groups that include a total number of bits to be programmed that is within the allowable number of parallel bits. Each group is programmed in one sense amplifier address cycle. Multiple sense amplifier addresses can be grouped for programming while still remaining within an allowable number of parallel programming bits. The system performs a read before write operation and generates bitmap data for the grouping information corresponding sense amplifier addresses.
US08947971B2 Semiconductor device generating a clock signal when required
Such a device is disclosed that includes a clock generation circuit generating a first clock signal and having an output node, and a drive circuit coupled to the output node of the clock generation circuit. The clock generation circuit outputs the first clock signal from the output node to the drive circuit in a clock output mode, fixes a potential of the output node to a first level in a first clock stop mode, and fixes the potential of the output node to a second level that is different from the first level in a second clock stop mode.
US08947969B2 Secondary memory units and systems including the same
A secondary memory unit includes a first substrate that has a non-volatile memory unit mounted thereon that is configured to receive power from an external power supply. A second substrate has an energy storage and supply medium mounted thereon. An energy transfer medium is provided that electrically connects the first substrate and the second substrate. The energy storage and supply medium is configured to supply an operating power to the non-volatile memory unit when power from the external power supply to the non-volatile memory unit is cut off.
US08947965B2 Techniques for providing a direct injection semiconductor memory device
Techniques for providing a direct injection semiconductor memory device are disclosed. In one exemplary embodiment, the techniques may be realized as a direct injection semiconductor memory device including a plurality of memory cells arranged in an array of rows and columns. At least one of the plurality of memory cells may include a first region coupled to a respective bit line of the array, a second region coupled to a respective source line of the array, a body region spaced apart from and capacitively coupled to a respective word line of the array, wherein the body region may be electrically floating and disposed between the first region and the second region, and a third region coupled to a respective carrier injection line of the array, wherein the respective carrier injection line may be one of a plurality of carrier injection lines in the array that are coupled to each other.
US08947962B2 On-die termination of address and command signals
A memory controller is disclosed. The memory controller is configured to be connected to one or more memory devices via an address and control (RQ) bus. Each of the memory devices have on-die termination (ODT) circuitry connected to a subset of signal lines of the RQ bus, and the memory controller is operable to selectively disable the ODT circuitry in at least one memory device of the one or more memory devices.
US08947956B2 Delay circuit and latency control circuit of memory, and signal delay method thereof
A delay circuit includes a delay unit configured to generate a delayed transfer signal by delaying a transfer signal corresponding to a first signal or a second signal, a distinguishment signal generation unit configured to generate a distinguishment signal which represents to what signal the transfer signal correspond between the first signal and the second signal and a delayed signal generation unit configured to output the delayed transfer signal as a first delayed signal or a second delayed signal in response to the distinguishment signal.
US08947955B2 Semiconductor memory, memory system, and operation method thereof
A memory system includes a semiconductor memory including a storage unit configured to store parameter information in response to a test mode signal and to output the stored parameter information in response to a parameter request signal, and a memory controller configured to provide the parameter request signal to the semiconductor memory and receive the parameter information from the semiconductor memory device.
US08947954B2 Random access memory for use in an emulation environment
A Random Access Memory (RAM) and method of using the same are disclosed. The RAM includes a plurality of memory cells arranged in columns and in rows with each memory cell coupled to at least one word line and at least one bit line. The RAM includes a plurality of switches with at least one of the switches coupled between two of the memory cells to allow data to be copied from one of the two memory cells to the other of the two memory cells. In another aspect, the two memory cells can be considered a dual bit cell that contains a copying mechanism. There are two interleaved memory planes, assembled from bit cells that contain two bits of information. One bit is the primary bit that corresponds to the normal RAM bit. The second bit is able to receive a copy and hold the primary value. When the copying mechanism is over, the two memory planes may act as two completely independent structures.
US08947950B2 Semiconductor device
A semiconductor memory device includes a bit line connected to a memory cell; an input/output line configured to input a data signal to the memory cell during a writing operation and to output a data signal stored in the memory cell during a reading operation; and a column select transistor including a first source/drain connected to the bit line and a second source/drain connected to the input/output line, wherein a resistance of the first source/drain is smaller than a resistance of the second source/drain.
US08947947B2 Integrated circuit and memory device
An integrated circuit includes a plurality of internal circuits, an e-fuse array circuit configured to store a data used by the internal circuits, and a fuse circuit configured to store a trimming data to set the e-fuse array circuit.
US08947946B2 Leakage measurement systems
Described examples include leakage measurement systems and methods for measuring leakage current between a word line at a boosted voltage and a word line at a supply voltage. The boosted voltage may be generated by charge pump circuitry. Examples of leakage measurement systems described herein may be included in memory devices.
US08947942B2 Semiconductor memory chip and multi-chip package using the same
A semiconductor memory chip includes a first pad unit configured to receive a first data and a first strobe signal, and a first selection transfer unit configured to transfer the first data and the first strobe signal to a first write path circuit in a first mode, and transfer the first data and the first strobe signal to a second write path circuit in a swap mode.
US08947937B1 Host-managed logical mass storage device using magnetic random access memory (MRAM)
A mass storage device includes a storage media with magnetic random access memory (MRAM) devices and a NAND flash interface and NAND flash memory devices that are coupled to the MRAM devices. The storage media has partitions (Logical Units (LUNs)) made of a combination of MRAM and NAND flash memory and further includes a controller with a host interface and a NAND flash interface coupled to the MRAM and NAND flash memory devices through a flash interface. A host is coupled to the controller through the host interface and the storage media communicates attributes to the host, an attribute being associated with one of the partitions, where the host uses the partition based on their attributes to optimize its performance.
US08947936B2 Memory architecture of 3D array with diode in memory string
A 3D memory device includes a plurality of ridge-shaped stacks, in the form of multiple strips of conductive material separated by insulating material, arranged as strings which can be coupled through decoding circuits to sense amplifiers. Diodes are connected to the bit line structures at either the string select of common source select ends of the strings. The strips of conductive material have side surfaces on the sides of the ridge-shaped stacks. A plurality of conductive lines arranged as word lines which can be coupled to row decoders, extends orthogonally over the plurality of ridge-shaped stacks. Memory elements lie in a multi-layer array of interface regions at cross-points between side surfaces of the conductive strips on the stacks and the conductive lines.
US08947932B2 High-performance one-transistor floating-body DRAM cell device
Provided is a one-transistor (1T) floating-body DRAM cell device including a substrate; a gate stack which is formed on the substrate; a control electrode which is disposed on the substrate and of which some or entire portion is surrounded by the gate stack; a semiconductor layer which is formed on the gate stack; a source and a drain which are formed in the surface of the semiconductor layer and of which lower surfaces are not in contact with the gate stack; a gate insulating layer which is formed on the semiconductor layer; and a gate electrode which is formed on the gate insulating layer, wherein the remaining portion of the semiconductor layer excluding the source and the drain is configured as a floating body. The miniaturization characteristic and performance of a MOS-based DRAM cell device can be improved, and a memory capacity can be increased.
US08947930B2 Semiconductor memory device for storing multivalued data
Data storage circuits are connected to the bit lines in a one-to-one correspondence. A write circuit writes the data on a first page into a plurality of 5 first memory cells selected simultaneously by a word line. Thereafter, the write circuit writes the data on a second page into the plurality of first memory cell. Then, the write circuit writes the data on the first and second pages into second memory cells adjoining 10 the first memory cells in the bit line direction.
US08947926B2 Semiconductor stack incorporating phase change material
A semiconductor stack for performing at least a logic operation includes adjacent layers arranged in a stacked configuration with each layer comprising at least a phase-change memory cell in which a phase-change material is provided between a heater electrical terminal and at least two further heater electrical terminals, the phase-change material between the heater electrical terminal and each of the two further heater electrical terminals being operable in one of at least two reversibly transformable phases, an amorphous phase and a crystalline phase; wherein the semiconductor stack, when in use, is configurable to store information by way of an electrical resistance of the phase of the phase-change material between each heater electrical terminal and each of the two further heater electrical terminals in each layer, and the logic operation is performed on the basis of the information stored in the adjacent layers.
US08947925B2 Thyristor memory cell integrated circuit
A semiconductor memory device including an array of memory cells (MC) formed on a substrate each realized from a load element and thyristor that define a switchable current path whose state represents a volatile bit value stored by the MC. At least one word line corresponding to a respective row of the array is formed on the substrate and coupled to MC current paths for the corresponding row. Bit lines corresponding to respective columns of the array are formed on the substrate and can be coupled to a modulation doped QW interface of the MC thyristors for the corresponding column. Circuitry is configured to apply an electrical signal to the word line(s) in order to generate current that programs phase change material of the MC load elements into one of a high or low resistive state according to state of the current path of the MCs for non-volatile backup purposes.
US08947923B2 Memory cells with rectifying device
Memory devices and methods described are shown that provide improvements, including improved cell isolation for operations such as read and write. Further, methods and devices for addressing and accessing cells are shown that provide a simple and efficient way to manage devices with multiple cells associated with each access transistor. Examples of multiple cell devices include phase change memory devices with multiple cells associated with each access transistor.
US08947921B2 Multilevel magnetic element
The present disclosure concerns a multilevel magnetic element comprising a first tunnel barrier layer between a soft ferromagnetic layer having a magnetization that can be freely aligned and a first hard ferromagnetic layer having a magnetization that is fixed at a first high temperature threshold and freely alignable at a first low temperature threshold. The magnetic element further comprises a second tunnel barrier layer and a second hard ferromagnetic layer having a magnetization that is fixed at a second high temperature threshold and freely alignable at a first low temperature threshold; the soft ferromagnetic layer being comprised between the first and second tunnel barrier layers. The magnetic element disclosed herein allows for writing four distinct levels using only a single current line.
US08947917B2 Thermal spin torque transfer magnetoresistive random access memory
A thermal spin torque transfer magnetoresistive random access memory (MRAM) apparatus includes a magnetic tunnel junction and a tunnel junction programming circuit. The magnetic tunnel junction includes a reference layer having a fixed magnetic polarity, a tunnel barrier layer, and a free layer on an opposite side of the tunnel barrier layer from the reference layer. The free layer includes a first layer having a first Curie temperature and a second layer having a second Curie temperature different from the first Curie temperature. The tunnel junction programming circuit is configured to apply a current through the magnetic tunnel junction to generate a write temperature in the magnetic tunnel junction and to write to the free layer of the magnetic tunnel junction.
US08947911B1 Method and circuit for optimizing bit line power consumption
A bit line power implementing circuit is provided, the bit line power implementing circuit has a bit line discharge oscillator to convert the supply voltage to a pulse; a decoder coupled to the bit line discharge oscillator to decode the pulse, and providing a first pulse with a first frequency and a second pulse with a second frequency; a first and a second counters, coupled to the decoder, and receiving the first and the second pulses respectively, and outputting a signal proportional to an average and a minimum read currents respectively; a divider outputting a read current ratio of the average read current to the minimum read current; and a multiplier for multiplying the supply voltage the read current ratio to output a bit line power consumption corresponding to the supply voltage.
US08947910B2 Semiconductor device comprising inverters and capacitor, and driving method thereof
A memory device with low power consumption and a signal processing circuit including the memory device are provided. In a memory element including a phase-inversion element by which the phase of an input signal is inverted and the signal is output such as an inverter or a clocked inverter, a capacitor which holds data, and a switching element which controls storing and releasing of electric charge in the capacitor are provided. For example, one of electrodes of the capacitor is connected to an input terminal or an output terminal of the phase-inversion element, and the other electrode is connected to a switching element. The above memory element is used for a memory device such as a register or a cache memory in a signal processing circuit.
US08947905B2 Nonvolatile memory devices and methods of driving the same
A method of driving a nonvolatile memory device including applying a reset voltage to a unit memory cell, reading a reset current of the unit memory cell, confirming whether the reset current is within a first current range, if the reset current is not within the first current range, changing the reset voltage and applying a changed reset voltage or applying again the reset voltage to the unit memory cell after applying a set voltage to the unit memory cell, if the reset current is within the first current range, confirming whether a difference between the present reset current and an immediately previous set current is within a second current range, and, if the difference is not within the second current range, applying the reset voltage or applying again the reset voltage to the unit memory cell after applying a set voltage to the unit memory cell.
US08947902B2 Semiconductor memory and method of making the same
A semiconductor memory includes a first bit cell within an integrated circuit (IC), and a second bit cell within the same IC. The first bit cell has a first layout, and the second bit cell has a second layout that differs from the first layout.
US08947901B2 Content addressable memory chip
A content addressable memory chip which can perform a high speed search with less error is provided. A match amplifier zone determines coincidence or non-coincidence of search data with data stored in the content addressable memory cells in an entry of a CAM cell array, according to the voltage of a match line. The match amplifier zone comprises one or more NMOS transistors and one or more PMOS transistors. The match amplifier zone has a dead zone to an input of a voltage of the match line, and has a property that no flow-through current is present in the match amplifier zone.
US08947899B2 Split laminated DC bus structure
An apparatus and method for mounting additional components, such as capacitors, to a DC bus of a motor drive. In one aspect, a motor drive includes an enclosure defining an interior, an input for receiving input electrical power from a power source, an output for providing output electrical power to a load, an intermediate DC circuit including a DC bus located in the interior of the enclosure, and a modular capacitor bus electrically coupled with the intermediate DC circuit, the modular capacitor bus including at least one capacitor mounted thereto. The modular capacitor bus is mountable as a unit to the DC bus.
US08947894B2 Switched mode power supply including a flyback converter with primary side control
A method and apparatus for controlling a flyback converter are presented. The flyback converter includes a transformer, a semiconductor switch coupled to a primary winding of the transformer, a current measurement circuit coupled to the semiconductor switch, a diode coupled in series to a secondary winding of the transformer, and a controller. The controller is configured to receive a feedback voltage, a reference signal, and the measured primary current and generate a control signal for the semiconductor switch dependent on the feedback voltage, the reference signal, and the measured primary current. The semiconductor switch switches on and off cyclically in CCM operation.
US08947893B2 Switch controller and converter including the same for prevention of damage
In a converter using a transformer, a switch controller controlling a main switch and an auxiliary switch increase a turn-on time of the auxiliary switch when a voltage of a signal corresponding to a current flowing to a primary coil of the transformer is greater than a reference voltage for a predetermined period.
US08947892B1 Electronic device protection
Apparatus, systems and methods for electronic device protection are provided. A particular apparatus includes a non-conductive substrate and a plurality of cells including conductive members coupled to the non-conductive substrate. The conductive members are arranged to form a first discontinuous mesh. Regions between the conductive members of the first discontinuous mesh include a phase change material. The phase change material undergoes a phase transition from substantially non-conductive to substantially conductive responsive to a change of energy.
US08947891B2 Back frame, mold for back frame, and backlight system
The present invention provides a back frame of flat panel display device, a mold for back frame, and a backlight system. The back frame includes at least two primary assembling pieces and the two primary assembling pieces are joined to form a main frame structure of the back frame. The at least two primary assembling pieces that are in direct contact for joining or indirect joining to form the main frame structure of the back frame are set in mutual rotation symmetry of a predetermined angle with respect to each other. The back frame, the mold for back frame, and the backlight system of the present invention, through providing at least two primary assembling pieces and the at least two primary assembling pieces being set in mutual rotation symmetry of a predetermined angle with respect to each other, make it possible for one set of mold to be shared by various primary assembling pieces so as to reduce the cost of mold and thus lowering the manufacturing costs of a backlight system and a back frame thereof.
US08947885B2 Electronic device with ejection mechanism
An electronic device includes a housing, a tray, and an ejection mechanism. The housing defines a slot and a slit in a sidewall thereof. The ejection mechanism includes a button and a pivoting member. The pivoting member includes a first end portion and a second end portion. The button includes a head portion and a shaft portion. The button is slidable along the slit between a first position where the shaft portion contacts the first end portion, the first end portion is urged by the shaft portion to move away from the sidewall, and the second end portion is leveraged to push the tray to move outwardly through the slot, and a second position where the shaft portion contacts the first end portion adjacent to the axis, the first end portion is moved, the tray is entirely received in the housing, and the second end portion abuts against the tray.
US08947884B1 Support for a printed circuit assembly
A device includes a printed circuit assembly (PCA) including a printed circuit board and at least one electronic component integrated with the printed circuit board, and a support to which the PCA is securable. At least one of the PCA and the support includes engaging structure elements, and some engaging structure elements are configured to secure the PCA to the support while other engaging structure elements are configured to secure the support to a securing structure within a housing of an electronic device.
US08947882B2 Flexible printed circuit board and mobile terminal using the same
Disclosed are a flexible printed circuit board and a mobile terminal using the same. The mobile terminal includes a printed circuit board (PCB), and a flexible printed circuit board (FPCB) connected to the printed circuit board. The flexible printed circuit board includes a branch extending from one side of the flexible printed circuit board, at least one switch provided on the branch and acquiring a key input signal, and a connector provided on an end portion of the branch and coupled to the flexible printed circuit board.
US08947880B2 Hot or cold aisle computer chassis
A chassis for a plurality of computers for use in a data center, the chassis at least one extensible fin, the fin either extensible perpendicularly from the front of the chassis or extensible parallel with the front of the chassis.
US08947877B2 Expanding device for portable electronic apparatus
An expanding device for a portable electronic apparatus is disclosed. The expanding device includes a main body for placing the portable electronic apparatus and a sliding assembly disposed in the main body. The sliding assembly includes a slide track element disposed in the main body, a sliding element, and a cover. The sliding element is slidably coupled to the slide track element and slides between a receiving position and an extending position relative to the main body. The cover is pivotally connected to the sliding element and includes a fixing portion. When the sliding element is moved towards outside of the main body to the extending position, the cover can be rotated relative to the sliding element, and the portable electronic apparatus can be fixed on the main body via the fixing portion of the cover.
US08947874B2 Portable computing device with a housing secured by a magnetic element and related method
Magnetic elements and attractors may be employed to secure a top case and a bottom case of a housing of a personal computing device. The magnetic elements may include a magnet that produces a magnetic field and a shunt. The shunt may direct the magnetic field through an opening to a pocket in which the magnet is received. Accordingly, flux leakage may be reduced and the bottom case may be secured to the top case. Magnetic elements and attractors may also be employed to secure a lid portion of the portable computing device to the housing thereof. These magnetic elements and attractors may be centered with respect to proximal and distal edges thereof.
US08947872B2 Holding frame for hard disk drive
A holding frame includes a base plate, a first resisting wall, a second resisting wall, two first elastic arms and two second elastic arms. The base plate includes a first surface and a second surface opposite to the first surface. The first resisting wall extends from the first surface, and the second resisting wall extends from the second surface. The two first elastic arms are formed on the first surface, and face the first resisting wall. The two first elastic arms and the first resisting wall define a first receiving space configured for receiving a first hard disk drive. The two second elastic arms are formed on the second surface, and face the second resisting wall. The two second elastic arms and the second resisting wall define a second receiving space configured for receiving a second hard disk drive.
US08947871B2 Portable electronic device and slide rail device
A portable electronic device including a computer body, a display, and a slide-rail structure is provided. The computer body has a first side edge. The display has a second side edge, a display surface and a back side surface. The slide-rail structure includes a sliding element and a connecting arm. The sliding element having a first combination portion is slidable between a first and a second position. The connecting arm having a second combining portion connected to the first combining portion is rotatably connected to the second side edge. When an included angle between the display surface and the computer body is first angle, the sliding element is in the first position; when the included angle is varied from the first angle to an angle greater than the first angle, the connecting arm pulls the sliding element to the second position. In addition, a slide-rail device is also provided.
US08947868B2 Protective cover and information processor
A protective cover includes an input operating unit and a cover unit. Through the input operating unit, an input operation to an electronic apparatus is performed. In the cover unit, the input operating unit is disposed. In the protective cover, the cover unit includes a folding section and two plate sections connected to the folding section. A connection terminal section is provided to which the electronic apparatus is connected. A wiring section which interconnects the input operating unit and the connection terminal section and which is bent attendantly on folding at the folding section is disposed inside the cover unit. Folding at the folding section into a predetermined shape enables setting of a cover mode in which the electronic apparatus is covered.
US08947857B2 Manganese oxide capacitor for use in extreme environments
A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a capacitor element containing an anodically oxidized porous, sintered body that is coated with a manganese oxide solid electrolyte. To help facilitate the use of the capacitor assembly in high voltage (e.g., above about 35 volts) and high temperature (e.g., above about 175° C.) applications, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas.
US08947856B2 Supercapacitor and method for forming the same
A supercapacitor including at least one first electrode substrate having a surface coated with an active material, and at least one second electrode substrate having a surface coated with the active material, wherein the at least one first electrode substrate has a polarity reverse to that of the at least one second electrode substrate. The at least one first and second electrode substrates are stacked in an alternating arrangement. A plurality of the first electrode substrate having the same polarity or a plurality of the second electrode substrate having the same polarity is connected in parallel. The at least one first and second electrode substrates include stacking portions each having opposite surfaces arranged with a frame-shaped insulating ring. An electrolyte is accommodated in spaces enclosed by the opposite surfaces of each stacking portion of the at least one first and second electrode substrates and each insulating ring.
US08947852B2 Integrated EMI filter and surge protection component
An improved electronic component is described. The electronic component has a capacitor with first planer internal electrodes in electrical contact with a first termination and second planer internal electrodes in electrical contact with a second termination. A dielectric is between the first planer electrodes and the second planer internal electrodes. The electronic component further comprises at least one of: an inductor comprising a conductive trace wherein said conductive trace is between the first termination and a third termination; and an overvoltage protection component comprising: a third internal electrode contained within the dielectric and wherein the third internal electrode is electrically connected to the first termination; a fourth internal electrode contained within the ceramic and electrically connected to a fourth termination; and a gap between the third internal electrode and the fourth internal electrode.
US08947851B2 Laminated ceramic capacitor
The laminated ceramic capacitor has a laminate block made of alternately laminated ceramic dielectric layers and internal electrodes, a pair of cover layers, laminated on top and bottom of the laminate block, ceramic bodies formed on both side faces of the laminate block, and a pair of external electrodes that are electrically connected to the internal electrodes, wherein the average grain size of the ceramic dielectric grains constituting the ceramic body is smaller than the average grain size of the ceramic dielectric grains constituting the ceramic dielectric layer in the laminate block.
US08947849B2 Multilayer ceramic electronic component and manufacturing method thereof
There is provided a multilayer ceramic electronic component. The multilayer ceramic electronic component includes a ceramic main body including a dielectric layer, and first and second internal electrodes disposed to face each other within the ceramic main body and having the dielectric layer interposed therebetween. When an average roughness of center lines of the first and second internal electrodes is Ra, a maximum distance from a virtual line corresponding to Ra to a bottom of a pit (d) formed below the virtual line is 0.1 μm to 13 μm. The surface roughness of the internal electrode printed surface is improved to decrease the occurrence of electrical shorts.
US08947847B2 Methods for forming a structure having a lightning strike protection
A method for forming a structure having lightning strike protection includes receiving at least one structural layer, receiving at least one lightning strike protection strip disposed on at least one reinforcement layer, automatically applying the at least one lightning strike protection strip disposed on the at least one reinforcement layer onto the at least one structural layer, and forming the at least one structural layer, the at least one lightning strike protection strip, and the at least one reinforcement layer, into the structure. The at least one lightning strike protection strip comprises a first material, and the at least one reinforcement layer comprises a second material different from the first material. The automatically applying may include using at least one of fiber placement equipment, tape laying equipment, and similar automated equipment.
US08947842B2 Temperature evaluation circuit
An electronic circuit includes a temperature evaluation circuit. The temperature evaluation circuit includes a first sensor circuit with a first output terminal that is configured to sense a first temperature at a first position of the electronic circuit and to generate at the first output terminal a first output current that is dependent on the first temperature. A second sensor circuit includes a second output terminal and is configured to sense a second temperature at a second position of the electronic circuit and to generate at the second output terminal a second output current that is dependent on the second temperature. An evaluation circuit has an input terminal connected to the first output terminal and the second output terminal and is configured to provide an evaluation signal that is dependent on a current received at the input terminal.
US08947841B2 Protection systems for integrated circuits and methods of forming the same
Harsh electrical environments integrated circuit protection for system-level robustness and methods of forming the same are provided. In one embodiment, a protection system includes dual-polarity high blocking voltage primary and secondary protection devices each electrically connected to a pad. The primary protection device has a current handling capability greater than a current handling capability of the secondary protection devices, and the secondary protection device has a turn-on speed that is faster than a turn-on speed of the primary protection device so as to decrease pad voltage overshoot when a fast transient electrical event occurs on the pad. Additionally, the holding voltage of the primary protection device is less than a holding voltage of the secondary protection device such that once the primary protection device has been activated the primary protection device clamps the pad voltage so as to minimize a flow of high current through the secondary protection device.
US08947840B1 Method and apparatus for improving the signal integrity of high-speed serial data receivers using coupled inductors
Methods and apparatus improve the signal integrity of high-speed integrated circuits. Disclosed is a passive network for an input to a receiver. One embodiment of the passive network has two coupled inductors to improve both return loss and insertion loss characteristics. A shunt inductor is connected in series with the termination resistance, while a series inductor is placed in series between the pad and receiver circuitry. By exploiting deliberately-introduced mutual coupling between these two inductors, an area-efficient passive network is created that improves both the return loss and input bandwidth.
US08947838B2 Overcurrent fault detection device for electrical drive control system
According to the present invention, an overcurrent fault detection device includes: an inverter converting DC current to three-phase AC currents for driving a motor; a DC voltage detector; phase current detectors; a rotational position detector that detects a rotational angle of the motor; a control circuit that controls a gate drive circuit, which controls the inverter at every predetermined cycle, based upon the phase current values, a motor rotational angle detection value, and a speed command or a torque command from a higher-order control device; and a first decision-making circuit that detects an overcurrent based upon the phase current values at every predetermined cycle, wherein: the first decision-making circuit determines whether or not the phase current values exceed a predetermined amplitude threshold value by frequency detection for any of the phase current values exceeding the predetermined amplitude threshold value, and determines that an overcurrent has occurred upon detecting the frequency.
US08947833B2 Disk drive suspension with interface intersection corner formed between insulating resin layer and adhesive block
A slider and a microactuator element are disposed on a gimbal portion of a flexure. The gimbal portion comprises a metal base, an electrically insulating resin layer, a conductor disposed on the resin layer, an electrically insulating adhesive block, and an electrically conductive paste. The adhesive block secures an end portion of the microactuator element to the metal base. The conductive paste is provided between the conductor and an electrode of the microactuator element. A first adhesive interface extending along the thickness of the resin layer, a second adhesive interface extending along a surface of the resin layer, and a corner portion are formed between the metal base and the conductive paste.
US08947832B2 Bearing device and swing arm assembly for magnetic disk
A bearing device includes a shaft having an axis, plural rolling bearings arranged at axially separated positions and rotatably supporting the shaft, a first cylindrical member for supporting the rolling bearings therein and having a first screw on a part of an outer surface thereof, a second cylindrical member having a second screw engaging with the first screw on an inner surface thereof and mounted to the outer surface of the first cylindrical member by engaging the first screw with the second screw, a restricting member provided on the outer surface of the second cylindrical member for preventing relative axial movement of the second cylindrical member with respect to the first cylindrical member when a portion of the second member contacts the restricting member.
US08947831B1 GSA suspension with microactuators extending to gimbal through flexible connectors
A dual stage actuated (DSA) suspension includes two PZT microactuators that are attached at their first ends to a non-gimbaled portion of the suspension such as the portion of the flexure that is rigidly attached to the load beam, and are attached at their second ends to the gimbaled portion of the suspension such as the gimbal tongue through flexible connectors that can be formed integrally with the suspension's flexure. The flexible connectors are flexible enough so as not to interfere with the suspension's gimballing action. The flexible connectors transmit force from the PZTs to the gimbal as the PZTs expand and contract in order to rotate the gimbal and thus effect fine movements of the head slider.
US08947828B1 Magnetic head having a double bump wrap around shield
In one embodiment, an apparatus includes a main pole, at least one side shield positioned on sides of the main pole, and a trailing shield having a multi-bump structure positioned near a trailing side of the main pole, wherein the multi-bump structure has six junctures along the trailing shield facing the main pole, a first juncture positioned at a media-facing surface, a sixth juncture positioned away from the media-facing surface, and second, third, fourth, and fifth junctures positioned along the side of the trailing shield facing the main pole between the first and sixth juncture, wherein an element height of a first face of the trailing shield positioned between the fourth and fifth juncture is less than an element height of a second face of the trailing shield positioned at an end of the trailing shield positioned opposite the media-facing surface of the trailing shield.
US08947822B1 Disk drive adjusting fly height based on air density measured from rate of temperature change
A disk drive is disclosed comprising a head actuated over a disk, wherein the head comprises a dynamic fly height (DFH) actuator. The disk drive further comprises an electrical heating element, and control circuitry operable to select an operating control signal applied to the DFH actuator by heating the electrical heating element for a first heating time, measuring a rate of temperature change of the electrical heating element, and selecting the operating control signal applied to the DFH actuator in response to the rate of temperature change.
US08947820B1 Write pulse with adjustable slew rate
The implementations disclosed herein provide for a storage device including a preamplifier that generates a write current pulse having a region of reduced slew rate that temporally correlates with a time when a magnetization of a write pole tip switches polarity.
US08947818B2 Disk storage apparatus and data protection method
A disk storage apparatus according to one embodiment includes a head, a storage device, a write module and a controller. The head writes data on a disk. The storage device has a storage area for temporarily storing the data written by the head. The write module writes data to tracks on a disk, while partially overlapping the data with previously written data to adjacent track. The controller detects a drift-off write of the head while writing data, determines a drift-off write area in which the drift-off write is occurred, and protects the data written in the storage area, if the data is written in the drift-off write area.
US08947814B2 Collection of readback signal modulation data
A data storage system having a read channel configured to function in a normal operation mode and a test mode. In the normal operation mode, the read channel is configured to decode a readback signal to obtain data bits. In the test mode, the read channel is configured to extract gain control loop data and/or timing control loop data from the readback signal.
US08947811B1 Disk drive using preamble and postamble to adjust asynchronous signal samples of payload
A disk drive is disclosed comprising a head actuated over a disk, wherein data is written to the disk comprising a first periodic pattern, a payload, and a second periodic pattern. The data is first read from the disk to generate a first read signal, and the first read signal is sampled asynchronously to generate first asynchronous signal samples. The first asynchronous signal samples representing the first periodic pattern are processed to measure a first phase, and the first asynchronous signal samples representing the second periodic pattern are processed to measure a second phase. A first phase error is generated based on a difference between the first phase and the second phase. The first asynchronous signal samples representing the payload are adjusted in response to the first phase error to generate first adjusted asynchronous signal samples.
US08947808B1 Preamp circuit including a loopback mode for data storage devices
A read channel of a storage device. The read channel includes a data generator configured to generate a test symbol. An encoding circuit in a write path of the read channel is configured to encode the test symbol as a write signal and provide the write signal to a preamplifier circuit to be amplified by the preamplifier circuit. A decoding circuit in a read path of the read channel is configured to receive the write signal as amplified by the preamplifier circuit and decode the write signal as amplified by the preamplifier circuit to determine a received symbol corresponding to the encoded test symbol. A comparator is configured to compare the received symbol to the test symbol and output, based on the comparison of the received symbol and the test symbol, an indication of whether the preamplifier circuit is operational.
US08947802B2 Methods and systems for magnetic media servo writing
A method comprises generating first and second magnetic field components in a magnetic medium, the second magnetic field component substantially opposite the first. A pattern is written onto the magnetic medium, and a signal is generated by reading the pattern. The magnitude of the second magnetic field component is controlled based on an asymmetry of the signal.
US08947799B2 Light directing film
Light directing film is disclosed. The light directing film includes a first structured major surface and an opposing second major surface. The first structured major surface includes a plurality of unitary discrete structures. Each unitary discrete structure includes a light directing portion that is primarily for directing light and includes a plurality of first side facets. Each first side facet makes an angle with the plane of the light directing film in a range from about 35 degrees to about 55 degrees. Each light directing portion also includes a first base that is defined by the plurality of first side facets and has a first minimum dimension. Each light directing portion also has a first maximum height. Each unitary discrete structure also includes a bonding portion that is primarily for bonding the light directing film to a surface. The bonding portion is disposed on and between the plurality of first side facets and includes a plurality of second side facets. Each second side facet makes an angle with the plane of the light directing film greater than about 70 degrees. The bonding portion also includes a second base that is defined by the plurality of second side facets and has a second minimum dimension less than about 10% of the first minimum dimension. The bonding portion also has a second maximum height. The ratio of the second maximum height to the second minimum dimension is at least about 1.5.
US08947798B2 Lens cap unit
A lens cap unit includes a mounting part mounted on a fixed cylinder in which a movable lens cylinder is movably contained, at least one barrier provided on the mounting part to be movable between a closed position covering a leading end portion of the movable lens cylinder and an opened position opening the leading end portion of the movable lens cylinder, and a cam protrusion provided on the barrier. The cam protrusion engages with the movable lens cylinder at a position outside an effective diameter of the movable lens cylinder.
US08947797B2 Miniature MEMS actuator assemblies
In one embodiment, an electrostatic actuator includes a generally planar fixed frame, a generally planar moving frame coupled to the fixed frame by a flexure for substantially coplanar, perpendicular movement relative to the fixed frame, a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moving frame, and an elongated output shaft having opposite input and output ends, the input end being coupled to the moving frame.
US08947795B2 Plastic optical element and method of manufacturing the same
A plastic optical element includes a member and covering portions formed on a first surface and a second surface of the member. A projecting portion made of a material out of which the member is made and a material out of which the covering portions are made is formed on a part of a side surface of the member, and the covering portion of the first surface and the covering portion of the second surface are connected to each other through the projecting portion.
US08947794B2 Label with integrated thin film magnifier
The invention features a label having a plurality of layers (e.g., at least two or more layers), in which at least one of the layers includes a thin film magnifier. Also featured are compositions to which the multi-layered label is affixed, methods of affixing the multi-layered label to compositions, and methods of making the multi-layered labels.
US08947787B2 Lens barrel
A lens barrel of the present invention comprises: first and second guide shafts arranged parallel to an optical axis X and provided in one of adjacent lens holding frames; first and second guide receiving holes formed in another of the adjacent lens holding frames for allowing the first and second guide shafts to be inserted therethrough and guided by the first and second guide shafts respectively; a first urging means of urging the one and the another of the adjacent lens holding frames along the direction of the optical axis; and a second urging means to rotate another of the adjacent lens holding frames in a circumferential direction of the first guide shaft. The first guide receiving hole is guided by the first guide shaft at two positions that are spaced apart from each other in the direction of the optical axis.
US08947784B2 Variable focus lens having two liquid chambers
A variable focus lens has a housing (1) and an actuator (8) which are mutually displaceable along an optical axis (A) of the lens. A primary membrane (15) is arranged between a first chamber (24, 26) and a second chamber (30, 32), with the first and second chambers being filled with liquids of similar density but different indices of refraction. First and second auxiliary membranes (19, 17) are provided for volume compensation. The first auxiliary membrane (19) forms a wall section of the first chamber (24, 26), and the second auxiliary membrane (17) forms a wall section of the second chamber (30, 32), at least one or both of the auxiliary membranes facing environmental air at its outer side.
US08947783B2 Optical combiner for near-eye display
An optical combiner includes a first, second, and third color combiner layer (“CCL”). The first CCL includes a first diffractive grating coated with a first filter configured to reflect a first color light and pass a second and a third color light. The second CCL includes a second diffractive grating coated with a second filter configured to reflect the second color light and pass the third color light. The third CCL includes a third diffractive grating coated with a third filter configured to partially reflect visible light. The diffractive gratings are each embedded in an index matched material and are angle-tuned diffractive gratings configured to receive image light at an angle and respectively reflect the first, second, and third color light in the image light at an order of diffraction that directs the light to an eye of a user.
US08947781B2 Monitoring system for generating 3-dimensional image and method of measuring distance by using the image
A monitoring system for generating a three-dimensional (3D) image, the system including: a plurality of monitoring cameras which are arranged to capture respective images of an area such that a portion of an angle of view of one monitoring camera overlaps a portion of an angle of view of another monitoring camera; and a controller which crops a plurality of overlapped images, each of which is an image of the overlapped portion, from among the respective images captured by the plurality of monitoring cameras, and generates a 3D image by adding the overlapped images.
US08947778B2 Two mirror unobscured telescopes with tilted focal surfaces
New families of two mirror unobscured telescopes with compact Schiefspiegler, eccentric pupil Cassegrain geometries, incorporating aspheres, tilted and decentered secondaries, and tilted decentered focal surfaces. These variables allow control of focal surface tilt. All embodiments, from f/5 to f/16, are totally reflecting, fully baffled systems, with wide diffraction limited FOVs and unobscured aperture MTFs. Systems optimized with the focal plane normal to the gut ray are well suited for visual and general use. They can incorporate a variable iris for f/number control and allow focusing along the gut ray with minimal field tilt. Systems optimized with a fixed focal plane tilt are well suited for high resolution, wide field collimators and IR scene generators. Any light reflected at focus can be trapped, eliminating Narcissus or “cats eye” effects. Additionally, this reflection can be used to provide a uniform “background” irradiance field.
US08947775B2 Catadioptric optical system with total internal reflection for high numerical aperture imaging
A catadioptric optical system includes, in order from an object side to an image side and arranged along an optical axis, a first catadioptric unit, a second catadioptric unit disposed in axial alignment with the first catadioptric unit and with a space therebetween; and a lens group disposed in axial alignment with the first and second catadioptric optical units. Light rays arriving from an object plane undergo a first reflection at the image-side surface of the first catadioptric optical unit, a second reflection at the object-side surface of the first catadioptric optical unit, a third reflection at the image-side surface of the second catadioptric optical unit, and a fourth reflection at the object-side surface of the second catadioptric optical unit. Advantageously, the sum the outward Petzval curvatures is cancelled out by the sum of inward Petzval curvatures.
US08947773B2 Catadioptric optical element and optical system including same
A catadioptric lens comprises, a first surface configured to introduce a ray within the catadioptric lens; and a second surface, with a reflective film, configured to reflect the introduced ray to the first surface; the second surface having a first reflection area and a second reflection area surrounded by the first reflection area, wherein the ray, which has been introduced from the first surface and has traveled to the first reflection area, is reflected on the first reflection area by total internal reflection, and the ray, which has been introduced from the first surface and has traveled to the second reflection area, is reflected by the reflective film.
US08947772B2 Durable, inorganic, absorptive, ultra-violet, grid polarizer
An inorganic, dielectric grid polarizer device includes a stack of film layers disposed over a substrate. Each film layer is formed of a material that is both inorganic and dielectric. Adjacent film layers each have different refractive indices. At least one of the film layers is discontinuous to form a form-birefringent layer with an array of parallel ribs having a period less than 400 nm. Another layer, different than the form-birefringent layer, is formed of an optically absorptive material for the ultra-violet spectrum.
US08947763B2 Electrophoretic material, electrophoresis display device, and electronic apparatus
In an electrophoretic material, first particles which are charged with a first polarity and second particles which are charged with a second polarity are dispersed in a solvent. A volume, which is obtained by dividing a volume of the solvent by a total number of particles, is called free volume, and a radius of a spherical space, which is occupied by sum of an average volume of the particles and the free volume, is called a free volume radius. A first particle average radius is greater than a second particle average radius. A difference between the free volume radius and the first particle average radius is greater than the second particle average radius. An electric charge amount of the second particles is greater than an electric charge amount of the first particles.
US08947761B2 Optical element, optical element array, display device, and electronic apparatus
An optical element includes: a first electrode and a second electrode that are arranged opposite each other, in which the first electrode allows part of incident light to pass therethrough and reflects another part of the incident light, and the second electrode reflects light that has passed through the first electrode; a first dielectric film and a second dielectric film covering the first electrode and the second electrode, respectively; and a first medium and a second medium each interposed and sealed in a space containing a cavity portion between the first dielectric film and the second dielectric film, in which the first medium and the second medium have refractive indices different from one another, and one of the first medium and the second medium is a polar liquid.
US08947759B2 Partially tinted clear state for improved color and solar-heat gain control of electrochromic devices
A control device for controlling the transmittance of an electrochromic device includes a power source, an electrical load sensing circuit, and a processor electrically coupled to the electrical load sensing circuit and a power source. The processor is configured to receive a measured electrical load value from the electrical load sensing circuit indicating an electrical property of the electrochromic device, further configured to control one or more properties of the electrochromic device by controlling the amount of current or voltage supplied from the power source to the electrochromic device, and yet further configured to vary a property of the electrochromic device while maintaining the electrochromic device at a substantially consistent transmissivity.
US08947750B2 Imaging device array and image forming apparatus
According to one embodiment, an imaging device array includes a plurality of imaging devices integrally including an incidence surface that converges light in the primary scanning direction, plural reflective surfaces that reflect light from the incidence surface multiple times, and an exit surface through which light that has reflected at the plural reflective surfaces exits the array. At least one of the plural reflective surfaces is formed at the apex of a protrusion that protrudes outwardly from the surface of the array, and the light that is output from the exit surface is imaged at an image point.
US08947748B2 Scanning device, apparatus and method for image processing
A scanning device includes a first scanning unit having a first line sensor and a first light source that emits a first light beam and is arranged only at one side of the first scanning unit in a main scanning direction, and a second scanning unit having a second line sensor and a second light source that emits a second light beam and is arranged only at one side of the second scanning unit in the main scanning direction. The first scanning unit and the second scanning unit face each other and are disposed such that the first light source and the second light source are arranged at the same side of the main scanning direction, and centers of the first line sensor and the second line sensor are located at the same position in the main scanning direction.
US08947746B2 Image reading device
An image reading device includes a platen glass, a document feeder, a light source, a light receiving section, a first opening/closing detection sensor, a second opening/closing detection sensor, and a document size determination section. The document size determination section determines a size of an original document on the basis of a measurement result from the light receiving section. Where the first opening/closing detection sensor indicates the open state, while the second opening/closing detection sensor indicates no open state when the original document is placed on the platen glass, the document size determination section determines a size of the original document in a main scanning direction on the basis of full lighting-up determination data obtained with all of plural light emitting elements lighted up and partial lighting-up determination data obtained with some of the plural light emitting elements lighted up.
US08947741B2 Converting color values of print data into color space of print apparatus and producing new object from overlap portion of plural objects to superimpose thereon with knock-out method
An image processing unit, includes: an overlap portion detection unit that detects an overlap portion between plural objects from image data configured by objects expressed by geometrical information and color values; a color value calculation unit that for the overlap portion between the plural objects, calculates a color value of the overlap portion from the plural objects according to an overlap processing method of the overlap portion; an object producing unit that produces a new object from the overlap portion between the plural objects detected by the overlap portion detection unit, and the color value calculated by the color value calculation unit; and a control unit that controls the object produced by the object producing unit to be superimposed on the overlap portion between the plural objects with a knock-out method.
US08947740B1 Method and apparatus for adjusting light intensity based on content to achieve a uniform exposure
A method, non-transitory computer readable medium, and apparatus for adjusting a light intensity of a printhead are disclosed. For example, the method receives an image comprising a plurality of pixels, calculates a correction factor for each one of a plurality of pixels of the image by applying a filter to each one of the plurality of pixels of the image and summing a contribution of the light intensity of each one of a plurality of surrounding pixels to a pixel being analyzed to calculate an overlap value and comparing the overlap value to a development threshold range and adjusts the light intensity of a light source of the printhead in accordance with the correction factor of each one of the plurality of pixels of the image that require toner.
US08947738B2 Image processing apparatus and method for reducing coloring between color ink and clear ink on a pixel region
An image processing apparatus includes a conversion unit and a determination unit to convert image data into color material data including color material data indicating a color material amount of a chromatic color material and color material data indicating a color material amount of an achromatic color material. The conversion unit converts image data of a region of interest in an image into the color material data of the chromatic color material. The determination unit determines the color material data of the achromatic color material corresponding to the image data so that a color indicated by coloring information corresponding to the image data of the region of interest in the image approaches an achromatic color.
US08947734B1 Pulse width modulator for a printing device
A pulse width modulation technique is disclosed for use in an image forming device such as a laser printer or a photocopier. The technique implements a pacer to synthesize the frequency of a serializer circuit by stretching (or shrinking) pixel pulse train data. The pacer stretches the pixel pulse train data in accord with increment data that is based upon information about the image forming device, such as the number of bits in the pixel pulse train data, the number of bits in print engine pulse train, the target print engine frequency, and the serializer frequency. The technique can be implemented with digital circuits that provide digital test data.
US08947722B2 Label printer with touchscreen-formatting of characters
A label printer has a touchscreen for displaying and inputting label data, and comprising at least one input area. The label printer also has a hardware keyboard for inputting label data, and comprising at least one hardware key. The label printer also has control means arranged to control printing means for printing a label in accordance with label information. The label information is derived from a combination of label data input via the at least one hardware key of said hardware keyboard and label data input via the at least one input area of said touchscreen.
US08947719B2 Method for controlling the speed of printing
A method for controlling printing speed of print jobs having different printing images on printing material, includes calculating printing data from a first static component, calculating and combining printing data from first variable components with printing data from the first static component forming first printing data and forwarding the first printing data to a printing unit, counting a current value with a counter, calculating printing data from a second static component, printing first printing images with the printing unit using first printing data and controlling printing speed of the printing unit to conclude the calculation before the counter reaches a value, calculating and combining printing data from the second variable components with printing data from the second static component forming second printing data and forwarding second printing data to the printing unit, and printing the second printing images with the printing unit using second printing data.
US08947716B2 Information storage device and image forming cartridge for image forming apparatus
The present invention provides an information storage device and an image forming cartridge for an image forming apparatus. The information storage device comprises at least two communication interfaces, at least two storage units, a detection unit, a first control unit and a second control unit, wherein the communication interfaces are configured to connect with a controller in the image forming apparatus and establish an information communication path between the first control unit and the controller in the case of being connected with the controller; the storage units and the communication interfaces are arranged corresponding to each other; the detection unit is connected with each foregoing communication interface; the first control unit and the second control unit are respectively connected with each foregoing storage unit and the detection unit. By adoption of the information storage device, the quality of executing the task of the image forming apparatus can be improved.
US08947711B2 Information providing device, image forming device, and transmission system for providing image data to a transmission terminal that performs video communication
An information providing device is capable of communicating with an image forming device, a data managing device, and a transmission terminal. The information providing device includes a storage unit; a communication unit that transmits a forming instruction to instruct the image forming device to perform image forming, and receives, from the image forming device, storage location information indicating the data managing device that stores data obtained by image forming by the image forming device and indicating a storage location in the data managing device; and a storage location managing unit that generates, in the storage unit, management information in which identification information of the image data is associated with the storage location information. The communication unit receives the data saved in the storage location indicated by the storage location information from the data managing device and transmits the received data to the transmission terminal.
US08947708B2 Information processing apparatus, method for controlling an information processing apparatus, and image forming system
An information processing apparatus is connected to a first image forming apparatus and another information processing apparatus over a network. The information processing apparatus includes an apparatus information managing unit that registers, to a storage unit, apparatus information related to the first image forming apparatus and a second image forming apparatus directly connected to the other information processing apparatus; a first request transmitting unit that transmits, to the first image forming apparatus, a first request to form and output an image; and a second request transmitting unit that transmits, to the other information processing apparatus, a second request to cause the second image forming apparatus to form and output an image.
US08947705B2 Non-transitory recording medium and print processing method
This disclosure discloses a non-transitory recording medium storing a print processing program for executing steps comprising: an instruction determining step for determining whether or not there is an input of a printing instruction; an identification information determining step for determining whether or not there is a plurality of sets of the identification information registered; a first printer determining step for attempting to perform information transmission and reception with one first printer for which a printing operation history log that satisfies a predetermined condition, and determining whether or not information transmission and reception are possible with the first printer; and a first print data transmitting step for transmitting desired print data associated with the input of the printing instruction to the first printer in a case where the determination is made in the first printer determining step that information transmission and reception are possible with the first printer.
US08947702B2 Engine optimization
Techniques are provided that include a workflow that optimizes print job execution by automatically categorizing and sorting requests into different configurations, respectively, for print operators, regular users, and the like.
US08947699B2 Image processing apparatus and control method thereof
When operation screen data sent from a Web server can be received, an image processing apparatus displays an operation screen based on the operation screen data on an operation unit. On the other hand, when operation screen data cannot be received due to a communication error, the image processing apparatus displays a substitute operation screen that allows it use of at least one of its image processing functions on the operation unit.
US08947690B2 Image reading apparatus and image forming apparatus
An image reading apparatus includes a carriage, a carriage detector, and a control unit. The carriage detector outputs a detection signal of the carriage when the carriage is at the home position, and outputs a non-detection signal of the carriage when the carriage is located closer to a document size reading position than a predetermined position between the home position and the document size reading position. The control unit moves the carriage to the home position when the image reading apparatus enters a sleep mode, keeps the carriage detained while performing initialization after the sleep mode is cancelled, and moves the carriage, upon receipt of a scanning instruction after the initialization is completed, toward the document size reading position in the case where the carriage detector outputs the detection signal of the carriage.
US08947688B2 Print control with interfaces provided in correspondence with printing methods to show status of member printers
Display control is made so as to obtain an optimum setting picture plane in accordance with a change in designation of an outputting method of a distribution printing, a multiple-address printing, an automatic substitute printing, or the like without allowing the user to be conscious thereof.
US08947687B2 Image forming apparatus and method of displaying option screen thereof
A method of displaying an option screen in an image forming apparatus includes determining at least one operation option corresponding each of two or more image forming functions, among image forming functions provided by the image forming apparatus; generating an option screen in which regions for setting the operation options determined with respect to the two or more image forming functions are arranged in a same screen; and displaying the generated option screen through a user interface unit.
US08947682B2 Image forming apparatus and control method thereof
An image forming apparatus which includes a plurality of operating modes, the apparatus including a main body, a scanning unit to move along the main body and obtains an image data from an object to be scanned, an operation state display unit to display a position of the scanning unit, and a controller to set a display mode corresponding to an operating state that includes at least one operating mode of the plurality of operating modes and controls the operation state display unit to display the display mode set corresponding to the operating state.
US08947681B2 Insertion system and insertion method
An insertion system includes an enclosure supply device, an envelope supply device, an insertion device to insert an enclosure supplied from the enclosure supply device into the envelope supplied from the envelope supply device, a first input unit to input identification data of the enclosure inserted into the envelope in each of multiple insertion setting records, a second input unit to input identification data of the enclosure set in the enclosure container of the enclosure supply device, and a controller to determine whether the identification data of the enclosure to be inserted, input by the first input unit, matches the identification data of the enclosure set in the enclosure container, input by the second input unit, and to control supply of the envelope by the envelope supply device as well as supply of the enclosure by the enclosure supply device based on a result of the determination.
US08947680B2 Method and apparatus for performing direct printing by analyzing the bytes of the print data
An image forming apparatus to perform direct printing of print data, wherein the image forming apparatus receives print data encoded in a first encoding method, determines whether the received print data includes a character expressed in 2 bytes, converts the print data encoded in the first encoding method to be encoded in a second encoding method of analyzing the character expressed in 2 bytes in the image forming apparatus if the print data includes the character expressed in 2 bytes, and forms an image of the converted print data.
US08947679B2 Portable handheld device with multi-core microcoded image processor
A portable handheld device including a CPU for processing a script; a multi-core processor for processing an image; an input buffer for receiving data for processing by the multi-core processor, the input buffer being provided under the control of the multi-core processor to send data thereto; and an output buffer for receiving data processed by the multi-core processor, the output buffer being provided under the control of the multi-core processor to receive data therefrom. The multi-core processor comprises a plurality of micro-coded processing units. The CPU is configured with authority to clear and query the input and output buffers.
US08947677B2 Dual-frequency phase multiplexing (DFPM) and period coded phase measuring (PCPM) pattern strategies in 3-D structured light systems, and lookup table (LUT) based data processing
A computer-implemented process, system, and computer-readable storage medium having stored thereon, program code and instructions for 3-D triangulation-based image acquisition of a contoured surface/object-of-interest under observation by at least one camera, by projecting onto the surface-of-interest a multi-frequency pattern comprising a plurality of pixels representing at least a first and second superimposed sinusoid projected simultaneously, each of the sinusoids represented by the pixels having a unique temporal frequency and each of the pixels projected to satisfy I n p = A p + ∑ k = 1 K ⁢ B k p ⁢ cos ⁡ ( 2 ⁢ π ⁢ ⁢ f k ⁢ y p + 2 ⁢ π ⁢ ⁢ kn N ) Eq . ⁢ ( 1.1 ) where Inp is the intensity of a pixel in the projector for nth projected image in a particular instant in time; K is an integer representing the number of component sinusoids (e.g., K=2 for a dual-frequency sinusoid pattern, K=3 for a triple-frequency sinusoid, each component sinusoid having a distinct temporal frequency, where K is ≦(N+1)/2.
US08947675B2 Aspheric surface measuring method, aspheric surface measuring apparatus, optical element producing apparatus and optical element
The method for measuring profile of an aspheric surface projects an illumination light onto the aspheric surface and introduces a reflected light reflected by the aspheric surface to a sensor through an optical system. The method provides, to a wavefront of the illumination light, a curvature bringing an absolute value of an angle of the reflected light to a smaller value than a maximum value of absolute values of angles of optical system side peripheral rays, locates an exit pupil such that the absolute value of the reflected light angle is smaller than the maximum value, provides, to a sensor conjugate surface, a curvature and a position causing rays of the reflected light not to intersect on the sensor conjugate surface. The sensor conjugate surface, the wavefront of the illumination light and the aspheric surface have a same one of convex and concave surfaces toward a same direction.
US08947674B2 Surface profile measuring apparatus and method
A surface profile measuring apparatus includes a reflection unit to reflect a reference beam diffracted by a first diffraction grating and cause the reflected reference beam to be incident on the first diffraction grating again, a detection unit to receive an interference beam in which the reference beam diffracted again by the first diffraction grating and a measuring beam reflected by a sample surface optically interfere with each other, and detect an interference intensity signal for each, wavelength in the interference beans, a shifting unit to shift the first diffraction grating in a direction perpendicular to a grating groove direction of the first diffraction grating, a calculation unit to calculates a phase on a basis of the interference intensity signal for each wavelength varying with a degree of shift, and a measurement unit to measure the sample surface.
US08947670B2 Flexure mounted moving mirror to reduce vibration noise
A novel means of provided a hybrid flexure mounted moving mirror component in an interferometer is introduced herein. In particular, a linear bearing in combination with a novel flexure mounting having novel tilt and velocity control of the moving optical component is provided. Such an arrangement enables correction of the errors at the mirror itself while also solving the problem of isolating vibration and noise caused by the imperfections in the bearing surfaces used in many conventional interferometers. Using such a coupled flexure mounting of the present invention, in addition to the above benefits, also enhances velocity control because the resultant low mass of the moving mirror assembly enables the systems disclosed herein to respond faster than conventional mirror velocity controlled interferometer instruments and with a lower velocity error so as to provide a more stable and lower noise spectra from the analytical instrument.
US08947668B2 Method for determining the path length of a sample and validating the measurement obtained
A for traceably determining an unknown optical path length of a sample in an optical measuring device comprises the steps of: providing a drop analyzer connected to a standard spectrophotometer; providing a certified reference material contained in first and second closed high accuracy cuvettes; measuring absorbance of the certified reference material to obtain a first absorbance measurement for the first specified path length; measuring absorbance of the certified reference material for a second path length to obtain a second absorbance measurement; using a dropping device to drop a specified volume of the solvent on an optical surface so that the path length of the specified volume can be determined by reference to the first and second absorbance measurement; and using the dropping device to drop the same volume of sample as the specified volume of solvent on the optical measuring device.
US08947666B2 Optical data transformation
Apparatus, systems, and methods may operate to receive interacted energy at an optical calculation device attached to a down hole housing to be deployed in a down hole environment. Further activities may include optically compressing data carried by the interacted energy into at least one orthogonal component, using the optical calculation device, sending a signal associated with the at least one orthogonal component to a remote surface computer, and determining a property of petroleum located in the down hole environment using the remote surface computer, based on the signal. The optical calculation device may comprise a multivariate optical element (MOE). Additional apparatus, systems, and methods are disclosed.
US08947659B1 Time correlated single photon counting by time to digital conversion
A time correlated single photon counting system having a time to digital converter triggered by a laser fire event detector and the reception of a single photon. The system may be used for chemical agent detection based on Rayleigh scattering using optical time domain reflectometry techniques. The system may also be used for Raman detection using frequency to time transformations.
US08947658B2 Nonlinear optical microscope and nonlinear optical microscopy
Provided is a nonlinear optical microscope capable of improving the spatial resolution. The nonlinear optical microscope includes: an illuminating part for irradiating, through an objective lens, a sample with at least two colors of illumination light beams spatially and temporally overlapping each other; and a detecting part for detecting signal light generated from the sample due to nonlinear optical effect, the signal light resulting from the irradiation of the sample with the at least two colors of illumination light beams, in which the illuminating part irradiates the sample with the two colors of illumination light beams in which at least one of the illumination light beams has a wavefront distribution different from a wavefront distribution of the other one of the illumination light beams.
US08947657B2 Methods for isolation and viability assessment of biological organisms
Isolation of biological or chemical organisms can be accomplished using a surface enhanced Raman scattering (SERS) system. The SERS system can be a single or a stacked plurality of photonic crystal membranes with noble-metal lined through pores for flowing analyte potentially containing the biological or chemical organisms. The through pores can be adapted to trap individual biological or chemical organisms and emit SERS spectra, which can then be detected by a detector and further analyzed for viability of the biological or chemical organism.
US08947653B1 Bottle coating detection system and method
A method for detecting a coating on a bottle includes directing light at a first point of incidence on the bottle and detecting a first intensity of reflected light from the first point of incidence on the bottle. Further, light is directed at a second point of incidence on the bottle and a second intensity of reflected light from the second point of incidence on the bottle is detected. The first intensity is compared to the second intensity to determine whether the coating on the bottle has been uniformly deposited.
US08947651B1 Tester for measuring a pitch static attitude of a head stack assembly
A tester for measuring a pitch static attitude of a head stack assembly including a laser transmitter configured to transmit laser beams, and a laser receiver configured to receive the laser beams from the laser transmitter, wherein the laser transmitter and the laser receiver are configured to receive a head stack assembly between the laser transmitter and the laser receiver. The tester also includes a laser guide located between the laser transmitter and the laser receiver, and configured to block the laser beams from entering a gap in the head stack assembly and reaching the laser receiver.
US08947650B2 Refractive index measuring device and refractive index measuring method
In a refractive index measuring device (1) for measuring a refractive index of a solid sample (S), the solid sample (S) is closely attached to a prism (3) having a predetermined refractive index with a refractive index liquid (4) having a predetermined refractive index interposed therebetween. A scaled angle (light receiving member) (6) having a light receiving surface (6a) that receives first reflected light (R1), which is a part of light from a light source (2) and which is reflected by the prism (3), is provided. When the prism (3) is rotationally driven by a rotary table (rotational drive unit) (5) and an intensity of second reflected light (R2) detected by a detector (7) becomes lower than a predetermined value, the refractive index of the solid sample (S) is measured by using a position of the first reflected light (R1) on the light receiving surface (6a) of the scaled angle (6).
US08947647B2 Range-resolved vibration using large time-bandwidth product LADAR waveforms
In one aspect, a method includes forming range bins from range compressed data, the range compressed data comprising a train of coherent pulses formed based on a transmitted signal from a laser detection and ranging (LADAR) sensor and having a large time-bandwidth product and for each range bin, compensating for motion of the LADAR sensor, performing a Fourier transform on the compressed range data, determining a centroid of individual velocity measurements and performing Fourier transform of the centroid to determine a vibration.
US08947645B2 Photoelectric conversion element, light receiving device, light receiving system, and distance measuring device
A first photoelectric conversion element, which detects light and converts the light into photoelectrons has: one MOS diode having an electrode formed on a semiconductor base body with an insulator therebetween; and a plurality of embedded photodiodes formed in the semiconductor base body. The electrode of the MOS diode has, when viewed from the upper surface, a comb-like shape wherein a plurality of branch portions are branched from one electrode portion. Each of the embedded photodiodes is disposed to nest between the branch portions of the electrode when viewed from the upper surface.
US08947641B2 Lithographic apparatus and method
In a lithographic apparatus, a slip of a patterning device relative to a support, the support constructed to support the patterning device, may be provided by measuring a position of the support relative to a first structure of the lithographic apparatus; measuring a position of the patterning device relative to a second structure of the lithographic apparatus; determining a correlation between the position of the patterning device and the position of the support from the measured position of the support, the measured position of the patterning device, and the mutual positions of the first and second structures; and deriving from the correlation a slip of the patterning device relative to the support. The structure may include a projection system to project a radiation beam patterned by the patterning device. The projection system may be connected to a frame, such as a metrology frame of the lithographic apparatus.
US08947640B2 Positioning device, lithographic apparatus, positioning method and device manufacturing method
A positioning device for positioning an object within a lithographic apparatus, including a support structure for supporting the object, at least two short-stroke units, each connected to the support structure, and a long-stroke unit. In the arrangement, each of the short-stroke units includes a short-stroke actuator system configured to provide independently at least one actuation force between the short-stroke unit and the long-stroke unit, and the long-stroke unit includes a long-stroke actuator system configured to provide at least one actuation force between the long-stroke unit and a reference structure of the lithographic apparatus.
US08947637B2 Lithographic apparatus and device manufacturing method
A lithographic apparatus is provided that has a sensor at substrate level, the sensor including a radiation receiver, a transmissive plate supporting the radiation receiver, and a radiation detector, wherein the sensor is arranged to avoid loss of radiation between the radiation receiver and a final element of the radiation detector.
US08947636B2 Lithographic apparatus, device manufacturing method, and substrate exchanging method
A lithographic apparatus includes an illumination system configured to condition a radiation beam; a support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; at least three substrate tables that are each constructed to hold a substrate; and a projection system configured to project the patterned radiation beam onto a target portion of the substrate, wherein the substrate tables are moveable in a common moving area extending substantially in a plane perpendicular to the patterned radiation beam, the moving area comprising at least three working locations of which at least one working location is arranged for exposure of the substrate to the patterned radiation beam and at least one working location is arranged for non-exposure purposes.
US08947633B2 Optical system and method of use
A method for improving imaging properties of an optical system and an optical system of this type having improved imaging properties are described. The optical system can have a plurality of optical elements. In some embodiments, an optical element is positioned and/or deformed by mechanical force action and by thermal action. In certain embodiments, one optical element is positioned and/or deformed by mechanical force action and another optical element is deformed by thermal action.
US08947632B2 Lithographic apparatus, device manufacturing method, and method of applying a pattern to a substrate
A lithographic apparatus includes a patterning subsystem for transferring a pattern from a patterning device onto a substrate controlled in accordance with recorded measurements of level variations across a surface of the substrate. A level sensor is provided for projecting a level sensing beam of radiation to reflect from a location on the substrate surface and for detecting the reflected sensing beam to record the surface level at said location. The level sensor incorporates at least one moving optical element to scan the substrate surface by optical movement in at least one dimension to obtain measurements of surface level at different locations without mechanical movement between the level sensor and the substrate. Optical path length equalization measures may be employed, using shaped reflectors and/or additional moving mirrors, to avoid focus variation during the scan.
US08947631B2 Lithographic apparatus and device manufacturing method
A lithographic apparatus with a cover plate formed separately from a substrate table and means for stabilizing a temperature of the substrate table by controlling the temperature of the cover plate is disclosed. A lithographic apparatus with thermal insulation provided between a cover plate and a substrate table so that the cover plate acts as a thermal shield for the substrate table is disclosed. A lithographic apparatus comprising means to determine a substrate table distortion and improve position control of a substrate by reference to the substrate table distortion is disclosed.
US08947628B2 Method of changing the physical shape of a display panel
A method of changing the physical shape of a display panel includes: immersing a portion of the display panel into a solution of an adhesive; and cutting the portion of the display panel along a cutting line in the solution so as to divide the display panel into an excess display part and a target display part that is separated from the excess display part and that has an end segment wrapped with a layer of the adhesive to form a shape-modified display panel.
US08947627B2 Electronic devices having displays with openings
An electronic device may have a display. The display may have an active region in which display pixels are used to display images. The display may have one or more openings and may be mounted in a housing associated with the electronic device. An electronic component may be mounted in alignment with the openings in the display. The electronic component may include a camera, a light sensor, a light-based proximity sensor, status indicator lights, a light-based touch sensor array, a secondary display that has display pixels that may be viewed through the openings, antenna structures, a speaker, a microphone, or other acoustic, electromagnetic, or light-based component. One or more openings in the display may form a window through which a user of the device may view an external object. Display pixels in the window region may be used in forming a heads-up display.
US08947620B2 Broadband cholesteric liquid crystal film, method for fabricating the same, polarization device, and high light efficiency liquid crystal display employing the same
The invention provides a broadband cholesteric liquid crystal film, a method for fabricating the same, a polarization device employing the same, and high light efficiency liquid crystal display employing the same. The cholesteric liquid crystal film is a single-layer liquid crystal material structure, and has a top surface and a bottom surface. Further, the cholesteric liquid crystal film includes a first region, a second region, and a third region, and the first region is adjacent to the top surface of the cholesteric liquid crystal film, the third region is adjacent to the bottom surface of the cholesteric liquid crystal film, and the second region is located between the first and third regions, and the average helical pitch P1 of the first region and the average helical pitch P3 of the third region are both larger than the average helical pitch P2 of the second region.
US08947618B2 Blue phase liquid crystal display device
A blue phase liquid crystal display device includes a backlight module and a blue phase liquid crystal display panel. The backlight module includes a plurality of light sources. The light sources generate a plurality of primary color lights with different bands. The blue phase liquid crystal display panel includes a blue phase liquid crystal layer. The blue phase liquid crystal layer includes a plurality of blue phase liquid crystal molecules and a plurality of chiral dopants. The blue phase liquid crystal layer has a reflection band. The reflection band is located between the bands of two adjacent primary color lights.
US08947616B2 Method for manufacturing liquid crystal display device and liquid crystal display device
The present invention provides a method for manufacturing a liquid crystal display device, which includes (1) providing a backlight module, a liquid crystal display panel, and a front bezel, wherein the liquid crystal display panel includes a TFT substrate, a CF substrate attached to the TFT substrate, and liquid crystal interposed between the substrates, an interval zone being formed between an edge of the TFT substrate and an edge of the CF substrate, flip chip films being mounted at intervals to the interval zone; (2) attaching cushioning tapes to the interval zone of the TFT substrate at locations other than the flip chip films; (3) assembling the liquid crystal display panel to the backlight module; and (4) assembling the front bezel to the liquid crystal display panel in such a way that the front bezel is positioned on the cushioning tapes of the liquid crystal display panel.
US08947615B2 Frameless liquid crystal display device
The present invention provides a frameless liquid crystal display device, which includes a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame. The liquid crystal display panel has an upper portion that is mounted to the mold frame through a plurality of connection sections. Each of the connection sections includes a cylindrical base plate and a cylindrical projection mounted to the cylindrical base plate. The liquid crystal display panel includes a CF substrate and a TFT substrate laminated on the CF substrate. The CF substrate forms a step with respect to a lower edge of the TFT substrate. A surface decoration is bonded to the step and fixed to the mold frame to assemble the liquid crystal display panel to the mold frame.
US08947614B2 Frameless liquid crystal display device
A frameless liquid crystal display device includes a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame. The liquid crystal display panel has an upper portion that is mounted to the mold frame through a connection section, which includes an elongate base plate to which an elongate projection structure is mounted. The mold frame forms a recess receiving and fixing the connection section therein by screws so as to fix the connection section and the mold frame to the rear enclosure. The liquid crystal display panel includes a CF substrate forming a step with respect to a lower edge of a TFT substrate. A surface decoration is bonded to the step to assemble the liquid crystal display panel to the mold frame.
US08947613B2 Frameless liquid crystal display device
A frameless liquid crystal display device includes a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame. The liquid crystal display panel has upper and lower portions mounted to the mold frame through connection sections, each of which includes a rectangular base plate and a trapezoid block. The mold frame forms a trapezoid slot having an open end and a closed end corresponding to each of the connection sections. The connection section is thus receivable through the open end into the trapezoid slot to retain and fix the liquid crystal display panel to the mold frame. The liquid crystal display panel forms a step and a surface decoration is mounted to the step to fix the liquid crystal display panel to the mold frame.
US08947611B2 Flat panel display device, stereoscopic display device, and plasma display device
The present invention provides a flat panel display device. The flat panel display device includes a backlight system and a display panel, wherein: the backlight system includes a light source, a light homogenization mechanism, and a back frame; the back frame carries the light source and the light homogenization mechanism and the back frame includes at least first and second primary assembling pieces, in which the first primary assembling piece has an end forming at least two joint sections, and each of the joint sections has a structure mating an end of the second primary assembling piece. The back frame further includes a plurality of bracing pieces that are fixed to the primary assembling pieces. The bracing pieces include adjustable bumps mounted thereon and the adjustable bumps provide various mounting structures. The present invention also provides a stereoscopic display device and a plasma display device. The present invention has a mold for back frame that is of a simple structure, reduces the expenditure of the back frame mold, and also saves the material used for back frame so as to lower down the cost. Further, the bracing piece includes an adjustable bump mounted thereon to provide various mounting structures.
US08947610B2 Display device comprising a TFT with a barrier metal formed of a first layer and a second layer wherein an amount of oxygen in the first layer is larger than in the second layer
An organic EL display device includes scanning lines, video signal lines, and pixels, each including a TFT having a semiconductor layer and an organic EL layer located between a lower electrode and an upper electrode. A source electrode connecting the semiconductor layer and the lower electrode is formed of three layers including a barrier metal, an Al-containing metal, and a cap metal. The barrier metal is formed of a first layer in contact with the semiconductor layer and a second layer in contact with the Al-containing metal. Each of the first layer, the second layer, and the cap metal is formed of a metal comprising a high melting point metal, and an amount of oxygen in the first layer is larger than an amount of oxygen in the second layer.
US08947608B2 Display apparatus including electrostatic preventing pattern
A display apparatus includes a first substrate, a second substrate and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a gate line, a data line, a thin film transistor, a pixel electrode and a common electrode. The common electrode includes a shielding portion which overlaps one of the gate line and the data line. The second substrate includes an electrostatic preventing pattern. The electrostatic preventing pattern contacts the liquid crystal layer and overlaps the shielding portion.
US08947602B2 Television receiver and electronic device
According to one embodiment, television receiver includes: first component; second component; pressing member. The pressing member includes: two second fixing portions; pressing portion; first and second arms; first and second reinforcements. Pressing portion presses the first component. First and second arms extend between the pressing portion and the two second fixing portions, respectively. First reinforcement includes a first portion extended from one of the second fixing portions to a first middle point between the one of the second fixing portion and the pressing portion, and positioned away from one of the first fixing portions. Second reinforcement includes a second portion extended from other one of the second fixing portions to a second middle point between the other one of the second fixing portions and the pressing portion, and positioned away from other one of the fixing portions. Second fixing portions are positioned on one side of the first component.
US08947601B2 Image processing apparatus and method
An image processing apparatus and image processing method are provided. The image processing apparatus includes a video processor which processes and displays an image; a receiver which receives a key signal of a color; and a controller which controls the video processor to display contents corresponding to the color when receiving the key signal of the color.
US08947599B2 Method and apparatus for adjusting chroma and luma for a video signal
A system that adjusts chroma and luma values for a video signal is presented. During operation, the system receives a matrix of coefficients, which when applied to the chroma values and the luma values of a video signal produces substantially the same result as performing a sequence of discrete operations on the chroma values and the luma values, wherein the sequence of discrete operations includes one or more color-representation-conversion operations and one or more processing amplifier operations. For a given pixel of the video signal, the system performs a matrix-multiplication operation between a matrix representation of the chroma values and the luma values for the given pixel and the matrix of coefficients to produce a modified pixel.
US08947598B2 Method for displaying wallpaper on digital broadcasting reception terminal
Provided is a method for displaying a wallpaper that includes setting a broadcast picture display function to display a specific broadcast picture as a wallpaper in response to a user's request; changing a standby mode to a digital broadcasting reception mode at preset time intervals to periodically capture a picture from a digital broadcast delivered on a specific channel if the broadcast picture display function is set; and displaying the captured picture as a wallpaper for the digital broadcasting reception terminal. The digital broadcasting reception terminal can periodically capture a picture from a digital broadcast program currently delivered and display the captured picture as a wallpaper even when the user does not view the digital broadcast program.
US08947597B2 Video reproducing device, controlling method of video reproducing device, and control program product
According to one embodiment, a video reproducing device includes a separation controller and a processor. The separation controller is configured to receive a video signal and an audio signal synchronized with the video signal, and to separate a background sound and a voice in the audio signal. The processor is configured to select at least one of a plurality of image quality improvement processing schemes based on an analysis of the voice and the background sound, and to apply the selected image quality improvement processing scheme to the video signal.
US08947596B2 Alignment of closed captions
In embodiments, apparatuses, methods and storage media are described that are associated with alignment of closed captions. Video content (along with associated audio) may be analyzed to determine various times associated with speech in the video content. The video content may also be analyzed to determine various times associated with closed captions and/or subtitles in the video content. Likelihood values may be associated with the determined times. An alignment may be generated based on these determined times. Multiple techniques may be used, including linear interpolation, non-linear curve fitting, and/or speech recognition matching. Quality metrics may be determined for each of these techniques and then compared. An alignment for the closed captions may be selected from the potential alignments based on the quality metrics. The closed captions and/or subtitles may then be modified based on the selected alignment. Other embodiments may be described and claimed.
US08947595B1 Fingerprinting to match videos having varying aspect ratios
A combined fingerprint is generated for a video that can match two near-identical videos that differ only in their aspect ratios or formats. A transformation strategy is selected by selecting a first and a second aspect correction method. A first transformed video is generated by applying the first aspect correction method to the video. A second transformed video is generated by applying the second aspect correction method to the video. A first fingerprint is generated using the first transformed video. A second fingerprint is generated using the second transformed video. The combined fingerprint is generated by combining the first half of the first fingerprint with the second half of the second fingerprint.
US08947592B2 Handheld imaging device with image processor provided with multiple parallel processing units
A handheld imaging device includes an image sensor for sensing an image; a micro-controller integrating therein a dedicated image processor for processing the sensed image, a bus interface, and an image sensor interface; and a plurality of processing units connected in parallel by a crossbar switch, the plurality of processing units provided within the micro-controller to form a multi-core processing unit for the processor. The image sensor interface provides communication between the micro-controller and the image sensor. The bus interface provides communication between the micro-controller and devices external to the micro-controller other than the image sensor.
US08947586B2 Diaphragm control apparatus of interchangeable lens camera
A diaphragm control apparatus of an interchangeable lens camera includes a photographing lens, a diaphragm control slider which is driven between first and second control ends corresponding to maximum and minimum apertures, a position detector, and a controller which drives the diaphragm control slider toward the first control end at high-speed, stores in a memory, as a temporary origin, a position to which the diaphragm control slider has rebounded after reaching the first control end. Thereafter, the controller compares the current position of the diaphragm control slider with the temporary origin while driving the diaphragm control slider at a low-speed towards the first control end. When the current position is within a predetermined range of the temporary origin, the controller determines the current position as the origin of the diaphragm control slider.
US08947585B2 Image capturing apparatus, image processing method, and storage medium
An image capturing apparatus includes: an imaging element; a main lens that condenses light from a subject toward the imaging element; a micro lens array that is configured by a plurality kinds of micro lenses with different focal lengths that is disposed between the imaging element and the main lens and causes light transmitted through the main lens to form an image on the imaging element; and a CPU that, in response to receiving a designation of a distance to a side of a subject that is photographed, performs weighting for each image that is imaged by the plurality kinds of micro lenses of the imaging element based on the distance so as to constitute one captured image.
US08947583B2 Image pickup apparatus and control method thereof
A controller configured to move a lens to reduce a defocus amount of a focus area selected from among a plurality of focus areas, wherein the controller repeats a detection of a defocus amount while moving the lens, and performs a selection of a focus area by using face position information, which is obtained and output by the first detection unit after detection of the defocus amount is repeated a plurality of times.
US08947581B2 Focusing apparatus that effectively sets a focus area of an image when a focusing mode is changed
A focusing apparatus includes a focus area setting unit that sets a first focus area in a first captured image, an auto focusing control unit that performs focusing according to a first focus evaluation value that is calculated from the first focus area by automatically adjusting a focus lens, an information deriving unit that derives focus aid information corresponding to a second focus evaluation value that is calculated from a second focus area in a second captured image by manually adjusting the focus lens, and a storage unit that stores at least one of first focus area information about the first focus area and second focus area information about the second focus area, wherein the focus area setting unit sets a third focus area in a third captured image from among the first focus area information and the second focus area information stored during another focusing.
US08947577B2 Lens barrel assembly and photographing apparatus having the same
A barrel assembly includes a barrel, at least one lens group disposed in the barrel to move in an optical axis direction, an aperture disposed in the barrel that adjusts an amount of light passing through the at least one lens group; and a light adjustment unit disposed in the barrel to move in the optical axis direction and that blocks light passing through a peripheral area of the at least one lens group when the at least one lens group is in at least one part of a travel section along which the at least one lens group moves in the barrel.
US08947575B2 Image pickup apparatus having warning region detection related to dynamic range expansion
An image pickup apparatus generates a display image signal by implementing predetermined dynamic range expansion processing on an image signal obtained by performing underexposed image pickup, and detects an image region in which a pixel within a predetermined gradation range exists as a warning region from the image signal either prior to implementation of the predetermined dynamic range expansion processing or following implementation of the predetermined dynamic range expansion processing. The image pickup apparatus synthesizes the display image signal with a warning pattern corresponding to the warning region and displays the synthesized image as a live view image.
US08947572B2 Dual-sided image sensor
An apparatus for a dual-sided image sensor is described. The dual-sided image sensor captures frontside image data incident upon a frontside of the dual-sided image sensor within an array of photosensitive regions integrated into a semiconductor layer of the dual-sided image sensor. Backside image data incident upon a backside of the dual-sided image sensor is also captured within the same array of photosensitive regions.
US08947571B2 Gain adjustable sensor pixels, arrays and array systems and methods therefor
A sensor pixel including a sensor, charge storage, a reset block having a reset input, readout block, and a charge leakage gain adjustment block having a gain adjustment control input. The sensor, charge storage, reset block, readout block, and charge leakage gain adjustment block are each operatively connected to a node. Adjusting the gain of a sensor pixel by storing charge from a sensor in a charge storage connected to a node, leaking charge from the charge storage to reduce the charge at a node, and reading out a state of the pixel represented by the charge of a node.
US08947566B2 Solid-state imaging apparatus and manufacturing method of solid-state imaging apparatus
The first face of the pad is situated between the front-side face of the second semiconductor substrate and a hypothetical plane including and being parallel to the front-side face, and a second face of the pad that is a face on the opposite side of the first face is situated between the first face and the front-side face of the second semiconductor substrate, and wherein the second face is connected to the wiring structure so that the pad is electrically connected to the circuit arranged in the front-side face of the second semiconductor substrate via the wiring structure.
US08947564B2 Solid-state imaging device, method for processing signal of solid-state imaging device, and imaging apparatus
A solid-state imaging device includes a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix and a conversion processing unit disposed on a substrate having the pixel array unit thereon. The color filter unit has a color arrangement in which a color serving as a primary component of a luminance signal is arranged in a checkerboard pattern and a plurality of colors serving as color information components are arranged in the other area of the checkerboard pattern. The conversion processing unit converts signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit into signals that correspond to a Bayer arrangement and outputs the converted signals.
US08947563B2 Reducing crosstalk
A method for reducing video crosstalk in a display-camera system includes capturing a first image of a local site while projecting an image of a remote site with a first intensity gain; capturing a second image of the local site while projecting the image with a second gain that is different from the first gain; capturing a first mixed image of the local site that includes the first image combined with the projected image having first gain and a second mixed image of the local site that includes the second image combined with the projected image having second gain; performing crosstalk reduction on the mixed images to create a reconstructed image of the local site, wherein performing crosstalk reduction of the mixed images includes determining whether a pixel value variation between the mixed images is affected by motion in the first and the second image of the local site.
US08947562B2 Zoom lens and imaging device
A zoom lens has first through fourth lens groups from the object side to the image side, and changes the magnification by changing their intervals. The first and third lens groups and the second and fourth lens groups have negative and positive powers, respectively. When changing the magnification from the wide-angle end to the telescopic end, the interval between the first and the second lens groups is reduced. The first lens group includes a reflective optical element. The second lens group includes at least two lenses, and the lens nearest to the image is a single plastic positive lens. The third lens group is configured by a single plastic negative lens. When the focal length of the single lens nearest to the image in the second lens group is defined as f2L and the focal length of the third lens group is defined as f3, “0.60<|f2L/f3|<1.60” is satisfied.
US08947561B2 Capturing device, capturing system and capturing method
A capturing device includes an image sensor that generates an image signal by performing photoelectric conversion for light from a subject, a control unit that generates a setting value for setting a range where an image resulting from the image signal is cut, based on a first instruction input from a user, a setting value storage unit that stores the setting value generated by the control unit, an image conversion unit that reads the setting value from the setting value storage unit, and cuts a specific region specified by the setting value from the image and enlarges the cut region, when there is a second instruction input from the user, and an output unit that converts a signal of the image cut and enlarged by the image conversion unit into an image signal of a predetermined format and outputs the converted image signal.
US08947560B2 Image processing apparatus, image processing method, image processing program, and imaging apparatus
An image processing apparatus generates a main image as an image satisfying a main composition condition indicating a condition regarding a predetermined composition. The image processing apparatus includes: a condition determining unit that determines whether a captured image obtained through imaging of an imaging unit satisfies a preliminary composition condition which is based on the main composition condition; a processing unit that executes a process of obtaining a preliminary image as an image satisfying the preliminary composition condition in accordance with the determination result of the condition determining unit; and an image processing unit that generates the main image by processing the preliminary image obtained through the process based on the main composition condition.
US08947559B2 Recorder and player
A player according to the present disclosure includes: an interface that retrieves an audio file from a storage medium on which the audio file and a still picture file are stored; and a controller that retrieves a still picture file, which is selected by the file name of the audio file, from the storage medium and that reads audio and a still picture from the audio file and the still picture file, respectively.
US08947557B2 Photographing apparatus and method for dynamic range adjustment and stereography
A photographing apparatus and method for dynamic range adjustment and stereography are provided. The photographing apparatus includes a first imaging device for converting a light of a subject received through a first optical system into an electric signal; a second imaging device for converting a light of the subject received through a second optical system into an electric signal; a first image signal processor for generating an image signal for live view based on the electric signal output from the first imaging device before a photographing operation of a still image; an exposure controller for controlling an exposure so as to perform a step exposure in the second imaging device before the photographing of the still image; and an exposure calculator for calculating an exposure amount in the photographing operation of the still image based on the electric signal converted in the second imaging device obtained through the step exposure.
US08947555B2 White balance optimization with high dynamic range images
Systems and methods to improve the white balance of a high dynamic range image are disclosed. In a particular embodiment, an imaging device includes a camera sensor and a processor, the processor configured to capture a lighter image and a darker image of a scene. The processor is then configured to white balance the lighter image based on the lighter regions of the image, and to white balance the darker image based on the darker regions of the image. The two images can then be combined to produce a final image.
US08947554B2 Method for processing image, image processing apparatus, and imaging apparatus
A method for processing image includes: acquiring image data; firstly correcting saturation information acquired from the image data based on at least one of hue information and luminance information of the image data; determining whether an image of the image data is a vivid color scene based on the saturation information corrected by the first correction; and outputting a result of scene determination.
US08947553B2 Image processing device and image processing method
An image processing device including a subject frame setting section which, by operating a subject detector which detects a subject captured in an image, sets a subject frame which surrounds a predetermined range of the subject detected from the image; an acceptance frame setting section which sets an acceptance frame with a range wider than the subject frame according to the context of the image; a position detecting section which detects a specified position on an image which is specified by a user; and a recognizing section which recognizes a subject which is a tracking target based on the acceptance frame set by the acceptance frame setting section and the specified position detected by the position detecting section.
US08947551B2 Method and apparatus for frame rotation in the JPEG compressed domain
An imaging system may include an image sensor array and circuitry that rotates and encodes images from the image sensor array. The circuitry may encode images from the image sensor into an image format such as a Joint Photographic Experts Group (JPEG) format. The circuitry may perform rotations of the images during encoding into Joint Photographic Experts Group (JPEG) format. Image rotations during encoding and compression may include redefining minimum coded units of the encoded image such that minimum coded units of a rotated image are processed in the same order as minimum coded units in a non-rotated image. Redefinition of minimum coded units may include rewriting of parameters in a start of frame segment of an image data stream such that the height and width of minimum coded units are reversed during rotation.
US08947549B2 Spectral synthesis for image capturing device processing
A substantially rectangular spectral representation is synthesized, which is adapted to produce image capture device sensor outputs if applied to an image capture device. The synthesized substantially rectangular spectral representation can be utilized in generating output color values of an output color space from image capture device sensor outputs, where the image capture device sensor outputs correspond to an image captured by an image capture device. The generated output color values correspond to colors perceived by the human visual system for the same image as that captured by the image capture device. Image capture device gamut is also determined.
US08947545B2 Camera module
The present disclosure relates to a camera module including: an auto focusing module upping and downing a lens; a hand-shaking correction module wrapping the auto focusing module to correct a hand-shaking by horizontally tilting the auto focusing module; a circuit substrate electrically connected to the hand-shaking correction module and the auto focusing module; a bottom case supporting the circuit substrate to be coupled to the auto focusing module; and a main circuit substrate secured to the bottom case to be electrically connected to the image sensor module, wherein the main circuit substrate is formed with oblong symmetrical openings along an edge of the main circuit substrate.
US08947544B2 Image pickup apparatus that allows for short-distance photographing
A photographing apparatus includes: a taking lens including a movable focusing lens; an image pickup portion that converts an optical image obtained via the taking lens into an image signal; a movement determining portion that determines movement of the photographing apparatus in an optical axis direction of the taking lens; and a recording portion that continuously records therein a plurality of images obtained by the image pickup portion with the focusing lens being set to a fixed position so that the taking lens is at a predetermined focused position as the photographing apparatus moves in the optical axis direction of the taking lens.
US08947543B2 System and method of personalizing a user interface of a portable electronic device
A method of personalizing an interface of a portable electronic device comprises the steps of interfacing the portable electronic device to a workstation, modifying the existing version of the user interface so as to define a personalized version of the user interface, transferring information defining the personalized version of the user interface from the workstation to the portable electronic device, and implementing the personalized version of the user interface on the portable electronic device.
US08947542B2 Integrated internet camera system and method
An Internet direct device comprises an imaging system to capture audio or video images and a microprocessor. The microprocessor transmits the captured audio or video images to another Internet direct device upon image capture and receives audio or video images from the other Internet direct device over a communications network. The Internet direct device automatically connects to the communications network on power-up using one of a plurality of available modes of connection, which is designated as a primary mode of connection. The Internet direct device automatically switches to another available mode of connection when the Internet direct device detects that the primary mode of connection to the communications network is unavailable.
US08947539B2 Apparatus for evaluating quality of video data based on hybrid type and method thereof
The present invention provides an apparatus for evaluating video quality based on a hybrid type which, when bit stream data is received, extracts first evaluation parameters based on the received bit stream data to calculate a preliminary video quality score based on the first extracted evaluation parameters and then extracts second evaluation parameters, and calculates a final video quality score by adjusting the preliminary video quality score based on the second extracted evaluation parameters and methods thereof.
US08947536B2 Automatic failover video coverage of digital video sensing and recording devices
Failover system for video surveillance. A video coverage area for each camera in the system is calculated by combining sensory information and optical specifications of each corresponding camera. The video coverage area information is embedded in a corresponding file of each camera and is used to autonomously re-orient operating cameras to cover a failed coverage area due to a non-operating camera.
US08947534B2 System and method for providing depth imaging
A device for use with an imaging system that is operable to provide an image signal based on an object disposed at a first distance from the imaging system. The imaging system includes a first camera, a second camera and a display. The first camera is operable to generate a first image signal based on the object and includes a first optics system and a first detector. The first optics system has a focal length, whereas the first detector has a resolution. The second camera is operable to generate a second image signal based on the object. The second camera includes a second optics system and a second detector. The second optics system has the same focal length of the first optics system and the second detector has the same resolution as the first detector. The second camera is separated from the first camera by a second distance. The display is operable to display an image based on a modified image. The device comprises an image processor that is operable to establish a virtual separation membrane and to output a modified image based on the first image signal, the second image signal, the virtual separation membrane, the second distance, the focal length and the resolution.
US08947532B2 System for monitoring the environment of a motor vehicle
A system for monitoring the environment of a motor vehicle, includes imaging devices for taking a sequence of images, which sequence contains images of at least a part of the environment of the motor vehicle. A display unit reproduces at least one image detail of the image sequence in the vehicle interior. A device automatically changes the detail of the environment shown by the reproduction of the image detail by the display unit. One or more devices for determining at least one earlier position of the motor vehicle is provided, wherein the environmental detail can be automatically adapted as a function of the earlier position of the motor vehicle.
US08947527B1 Zoom illumination system
Zoom illumination system for use with closed circuit TV cameras in applications requiring long distance illumination, such as surveillance and night vision. The system includes multiple strings of LEDs, which may have additional lenses, with each LED string capable of providing illumination for a predetermined viewing angle. The LED strings can be switched on and off to provide illumination as desired.
US08947525B2 Plant observation device and method
A plant observation device measures the growing state of a plant placed in a measurement area and the growth environment in the measurement area while moving within the measurement area where the plant is cultivated. The quantity of light is measured during growth environment measurement, and a light transmitting state of the measurement area is detected based on the measured quantity of light and the time of light quantity measurement. The measured growing state information and growth environment information are transmitted, together with positional information, to a server of a remote monitoring system. The growth environment in the measurement area is then optimally controlled based on the growing state information and the growth environment information.
US08947524B2 Method of predicting a trajectory of an asteroid
Disclosed are a system, a method and an apparatus of predicting a trajectory of an asteroid. In one embodiment, a method of predicting a trajectory of an asteroid near a celestial object, includes continuously monitoring, through a high-definition camera optimized for space viewing, an unlimited expanse of space as visible from a location of the high-definition camera optimized for space viewing. The method also includes detecting a change in a light intensity of one of a plurality of stars. In addition, the method includes determining that the light intensity of a star has changed beyond a threshold parameter. The method further includes detecting an occultation, through a discriminating sensor, when the change in the light intensity of the star is determined. On detecting occultation, the method includes recording a set of properties associated with the occultation.
US08947522B1 Systems and methods to adjust actions based on latency levels
Systems and methods to adjust actions based on latency levels are described. The method may be executable to determine an action being performed by a robotic device. The method may also be executable to generate data based on execution of the action to provide to a server and receive information indicative of latency attributable to communication between the robotic device and a server. The method may also determine a priority at which to provide the generated data to the server and provide the generated data to the server in an order based on the priority. When the latency is above a threshold amount, the method may identify information of the generated data having a given priority above a threshold level and provide a reduced resolution version of the identified information to the server.
US08947520B2 Electron microscope
An electron microscope according to the present invention includes: a backscattered electron detector provided with a backscattered electron detecting element (9); a low-vacuum secondary electron detector provided with a bias electrode (11) and a specimen stage (12); and a signal switch (14) that switches signals detected by the detectors. Optimal observation conditions are stored in an observation condition memory (20) for each of the detectors. A CPU (19) calls observation conditions stored in the observation condition memory (20) on the basis of the switching of the detectors, and sets conditions of the electron microscope to the called observation conditions. An image processing device (22) converts a plurality of the detected signals obtained on the basis of the switching of the detectors into two-dimensional image signals and evaluates the qualities of images of the two-dimensional image signals. In an image quality prioritized mode, the CPU (19) selects a detector causing an evaluated value to be highest on the basis of the results of the evaluation performed by the image processing device (22) and causes an image to be displayed. In the electron microscope that includes the plurality of detectors, a detector can easily be selected, and the optimal observation conditions for the detectors can easily be set.
US08947517B2 Microscope control device, image management server, image processing method, program, and image management system
A microscope control device includes a driving control unit that controls driving of a microscope which captures a digital enlarged image of a predetermined sample and outputs the corresponding digital enlarged image to an external server, a digital work processing unit that performs a digital work process for the captured digital enlarged image, a load calculation unit that calculates a load which is necessary for the capturing process of the digital enlarged image, and a digital work determination unit that determines whether or not the predetermined digital work process is to be performed by the digital work processing unit based on a load value calculated by the load calculation unit and a load value for the corresponding server obtained from the server.
US08947515B2 Systems and methods for registering advertisement viewing
An apparatus for identifying active access, by a viewer, of a source containing an advertisement includes a video capture device for recording user interaction in an area and a video processor electrically coupled to the video capture device. The video processor is configured to analyze the video obtained by the video capture device. The video process analysis includes identification of active access, by the viewer, of the source containing the advertisement. The source is electrically decoupled from the video capture device.
US08947513B2 Method and system for tracking and analyzing data obtained using a light based positioning system
In one aspect, the present disclosure relates to a method for tracking and analyzing information in a location using a light based positioning system. In some embodiments, the method includes determining a position of a device in a location using a light based positioning system, electronically receiving data from the device, and updating a database with said data. In some embodiments, determining the position of the device includes receiving a position determination from the device. In some embodiments, determining the position of the device includes electronically receiving from the device one or more identification codes of one or more light sources that the device has detected using an image sensor on the device and calculating the position of the device using the one or more identification codes.
US08947511B2 Apparatus and method for presenting three-dimensional media content
A system that incorporates teachings of the present disclosure may include, for example, a media processor including a controller to obtain three-dimensional media content, obtain position information associated with at least one viewer of a display device that is operably coupled to the media processor, adjust convergence of the three-dimensional media content based on the position information, and provide the three-dimensional media content with the adjusted convergence to the display device for presentation. Other embodiments are disclosed.
US08947508B2 Image processing apparatus
An image processing apparatus which employs a basic configuration including an image processing controller which processes images captured by a stereo camera and a recognition processing controller which recognizes an object based on information from the image processing controller includes a target object area specifying unit, feature amount extracting unit and smoke determining unit as functions of enabling recognition of a smoky object. The target object specifying unit specifies an area of an object which is a detection target, by canceling the influence of the background, the feature amount extracting unit extracts an image feature amount for recognizing a smoky object in a target object area and the smoke deciding unit decides whether the object in the target object area is a smoky object or an object other than the smoky object, based on the extracted image feature amount.
US08947506B2 Method and system for utilizing depth information for generating 3D maps
A mobile device, which comprises a monoscopic three-dimensional (3D) video generation device, one or more depth sensors and one or more devices operable to determine distance, may be operable to capture two-dimensional (2D) video image data and corresponding depth information of surroundings of the mobile device. The mobile device may capture distance information via the one or more devices operable to determine distance. A 3D map may be rendered by the mobile device utilizing the captured 2D video image data, the captured corresponding depth information and/or the captured distance information. The monoscopic 3D video generation device may comprise one or more image sensors. The one or more devices operable to determine distance may comprise an optical and/or electromagnetic emitting device. The 3D map may be generated by the mobile device. The 3D map may also be generated by the mobile device based on information received from a location server.
US08947494B2 Pointer information processing device, computer-readable recording medium and conference system
A pointer information processing device includes a memory and a processor coupled to the memory. The processor executes a process including acquiring a position of a conference participant in a first image captured toward the conference participant, detecting a light-emitting point of a laser pointer, detecting a radiated point of the laser pointer, identifying the conference participant that is using the laser pointer having the light-emitting point by comparing a position of the detected light-emitting point within the first image to the acquired position of the conference participant, associating the detected light-emitting point with the detected radiated point, and recording respective position information of the detected light-emitting point and the detected radiated point associated with each other at the associating and information about the conference participant identified at the identifying in the memory in an associated manner.
US08947487B2 Method and apparatus for combining speakerphone and video conference unit operations
A High Speed Serial Bus connecting teleconference devices, such as video conference unit, speakerphone, external loudspeakers or microphones is disclosed. The disclosed embodiments enable the distributing and sharing of controls among the linked devices. They enable incremental upgrades or capacity increases of the teleconference system.
US08947484B2 Printer
A printer comprising: a housing having an accommodating portion that accommodates recording paper and opens in a direction crossing the direction of gravity; a cover coupled to the housing in an openable and closable manner, and closing the accommodating portion; a control unit provided on the cover and having a circuit board; an lever provided in the housing at a position above the control unit in the direction of gravity and opening the cover; and a discharge path provided on the cover outside the control unit and leading liquid having entered through between the lever and the control unit toward an area below the control unit in the direction of gravity, wherein the discharge path including an upstream side end disposed on the cover below the lever in the direction of gravity.
US08947483B1 Printer and mark detection method
A printer includes: a sensor; a calculation unit that calculates an average value of mark levels and a permissible range in accordance with the average value, the mark levels being output levels of the sensor that has read a mark on a sheet a given number of times; a setting unit that, when the mark levels read the given number of times fall within the permissible range, sets a middle value between a white level and the average value as a determination value of existence or nonexistence of a next mark, the white level being an output level of the sensor when a non-marking domain of the sheet is read; and a determination unit that determines that the next mark has been detected when a mark level at the time of reading of the next mark is less than the determination value of existence or nonexistence of the next mark.
US08947482B2 Active biased electrodes for reducing electrostatic fields underneath print heads in an electrostatic media transport
Embodiments described herein are directed to a system for reducing electrostatic fields underneath print heads in a direct marking printing system. The system includes: one or more print heads for depositing ink onto a media substrate; a media transport for moving the media substrate along a media path past the one or more print heads; a conductive platen contacting the media transport belt; an electrostatic field reducer that includes an alternating current charge device positioned upstream of the one or more print heads; and one or electrically isolated biased electrodes in registration with the ink deposition areas of the one or more print heads. The media transport includes a media transport belt and, when the media is on the transport belt it has an electrostatic field, which can cause printing defects. The electrostatic field reducer and electrodes reduce the electrostatic field on the surface of the media and thereby reduce printing defects.
US08947480B2 Apparatus supplying a signal for generating a multitone image
The printer (1) includes a control unit (20) including a function reproducing multiple tones by outputting energization data that is dot control data in multiple cycles in line units to a head unit (10) including a plurality of dot generating elements disposed in a line. The control unit (20) includes: a thermal head control circuit (60) supplying the energization data of each cycle and a latch signal for the energization data of each cycle to the head unit (10); and a mask circuit (70) operable when the energization data of the current cycle is the same as the energization data of the previous cycle, to erase the current energization data and the signal for latching to be supplied to the head unit (10).
US08947477B2 Apparatus and method for mounting particles on a carrier
Method and apparatus for individually positioning and mounting particles on a target carrier according to a predefined pattern. In particular the particles are spheres of an electrically chargeable material with a diameter in the range of 10 micrometer up to one millimeter and are electrically conductive.
US08947473B2 Micro-shutter display device
Disclosed is a display device and, more particularly, a micro-shutter display device including: a light source emitting light; a lower substrate having an optical conversion unit performing at least any one of a function of converting back light output from a light source into primary colors corresponding to sub-pixels and a function of reflecting ambient light having a primary color band corresponding to sub-pixels; a micro-shutter opening and closing a path of light output from the optical conversion unit; and a driving circuit supplying a driving signal to a movable unit electrode or a fixed counter electrode, wherein the micro-shutter includes: a shutter micro-structure comprised of a shutter blade blocking light output from the optical conversion unit and a shutter aperture allowing light output from the optical conversion unit to be transmitted therethrough; an elastic element connected to the shutter micro-structure to provide elastic restoring force when the shutter micro-structure structure is driven; a movable unit electrode configured to be connected to the shutter micro-structure; and a fixed counter electrode spaced apart by a certain interval from the movable unit electrode.
US08947468B2 Apparatus and method for enhancing readability of a character
A method and apparatus are provided for enhancing the readability of a character. The method includes determining ambient light of a mobile terminal and controlling background color and character color of a character image according to the determined ambient light. The method may further include performing an additional control according to the types of displays when controlling the background color and character color. Through this, it is possible to display a character image with enhanced visibility, while minimizing current consumption.
US08947467B2 Display device and gamma setting method for the same
A display device receiving a video signal including grayscale data and displaying images according to the input video signal includes: a photosensor measuring illuminance of external light; a timing controller processing the data signal according to a target gamma value corresponding to the measured illuminance among a plurality of gamma values for a reference curved line representing a relationship of a lightness variation according to a change of grayscale data to be applied to the measured illuminance environment; a data driver applying the processed data signal to a plurality of pixels; and a scan driver applying a scan signal to the plurality of pixels for the data signal to be applied to the plurality of pixels. Accordingly, an image or a motion picture may be displayed with a desired grayscale without influence of external light, and the display quality may be obtained in an external light environment without increasing power consumption.
US08947465B2 Methods and systems for display-mode-dependent brightness preservation
Embodiments of the present invention comprise systems, methods and devices for display-mode-dependent adjustment of image code values.
US08947464B2 Display control apparatus, display control method, and non-transitory computer readable storage medium
When changing a plurality of displayed items to a plurality of other items that are at least partially different, at least one selected item of the plurality of displayed items is identifiably displayed, and its display position is stored. After the plurality of displayed items have been changed to the plurality of other items, an item displayed at the same position as the stored display position of the selected item before the change is identifiably displayed. This improves the operability when simultaneously displaying a plurality of items.
US08947463B2 Information processing apparatus, information processing method, and information processing program
An information processing apparatus include: a control detection block configured to detect a control in a predetermined detection space; a position detection block configured to detect a three-dimensional position of a control detected by the control detection block; a threshold value setting block configured, if the control has approached the control detection block beyond a threshold value set to a predetermined distance through the control detection block on the basis of a three-dimensional position detected by the position detection block, to set the threshold value farther from the control detection block than the predetermined distance; a setting change block configured, if the control has exceeded the threshold value set by the threshold value setting block, to change setting values for predetermined processing; and a processing execution block configured to execute the processing by use of the setting values set by the setting change block.
US08947459B2 Contents playback apparatus, contents playback method, and computer program
A contents playback apparatus and the like are provided which allow a user to promptly designate a desired portion when displaying a part of a content in an expanded manner, and are thus excellent in operability. A contents playback apparatus includes an associating unit and a playback unit. The associating unit generates association information for a plurality of characteristic portions contained in a content by referring to priority orders of the respective characteristic portions relative to each other, the association information associating each of the characteristic portions individually with a predetermined operation key of an input device included in the apparatus in accordance with the priority orders. The playback unit plays back, in response to detecting an operation of an operation key during display of the content, the characteristic portion corresponding to the operation key in an expanded display mode, in accordance with the association information.
US08947458B2 Method for providing information on object within view of terminal device, terminal device for same and computer-readable recording medium
The present invention relates to a method for providing information on an object included in a visual field of a terminal in a form of augmented reality (AR) by using an image inputted to the terminal and its relating information. The method includes the steps of: (a) specifying the visual field of the terminal corresponding to the inputted image by referring to at least one piece of information on a location, a displacement and a viewing angle of the terminal; and (b) acquiring a graphic element corresponding to the object, included in the visual field of the terminal, whose identity is recognized by using a technology for matching a building image and displaying the acquired graphic element with the inputted image in the form of the augmented reality by providing the graphic element on a location of the object displayed on a screen of the terminal.
US08947451B2 System and method for automatic generation of image distributions
A method and system for automatically producing arrangements of two-dimensional extents in a computer-based editing or animation environment is presented. The method consists of defining a set of objects having two or more dimensions, automatically calculating and presenting an arrangement of said objects, and optionally iterating to produce alternative arrangements. The arrangements may use templates to guide the selection of sizes, border colors and transparency, rotation, and other attributes of the contained regions.
US08947450B2 Method and system for viewing and enhancing images
The invention relates to method and system for viewing and enhancing images on the display of a mobile device, which includes the display, memory and a processing means for bit images, and an input device for receiving bit images. A bit image is received and processed to a smaller scale in two stages, using pre-selected scaling algorithms, in which the first scaling produces a bit image of an intermediate size and the second scaling produces a second bit image of the size to be displayed. The bit image to be displayed is enhanced. The second bit image is enhanced using an enhancing chain comprising at least two enhancing algorithms.
US08947444B1 Distributed vertex attribute fetch
A data structure that includes pointers to vertex attributes and primitive descriptions is generated and then processed within a general processing cluster. The general processing cluster includes a vertex attribute fetch unit that fetches from memory vertex attributes corresponding to the vertices defined by the primitive descriptions.
US08947436B2 Method, apparatus and system for dense graph simplification, and recording medium for the same
Provided are a method, an apparatus and a system for dense graph simplification, and a recording medium for the same. The method includes receiving an original graph and extracting a plurality of salient points, which minimize a cost representing a greatest vertical distance between the original graph and each of a plurality of lines connecting two data points in a designated region on the original graph; and outputting a simplified graph in which the extracted salient points are connected. Thus, optimal results are ensured in dense graph simplification, and interactive control is allowed for a user.
US08947434B2 Process for determining, scaling, providing, comparative information in accurate, useful, easily recognized, and understandable manner
A machine-implemented process for determining, scaling, providing, and presenting comparative information in an accurate, scaled, useful, easily recognized, and understandable manner, including: reading the data sets; setting first and second boundaries of a first reference axis using first coordinates of data points of one data set having maximum and minimum values, respectively; setting first and second boundaries of each of the other reference axes by adjusting either the first coordinate of one data point of the selected data set having a maximum value or the first coordinate of one data point of the selected data set having a minimum value, wherein every E-value calculated based on the thus-obtained final first and second boundaries of the each of the other reference axes is substantially equal to an E-value of the first data set; and plotting the data points of the data sets. An electronic device capable of presenting a multiple-axis graph is also disclosed.
US08947431B2 Method and system for providing scene data of virtual world
Methods and systems for providing scene data of a virtual world. One method includes the following steps: receiving a request for downloading the scene data from a content requesting party, where the request includes (i) information on an object group in the scene data and (ii) Level of Detail (LoD) information on an object in the object group, packing LoD content of the object in the object group based on the information on the object group and the LoD information on the object, and transmitting the packed LoD content corresponding to the object group to the content requesting party.
US08947426B2 Display control apparatus and display control method
A display control apparatus of the present invention displays a plurality of images on a display device capable of performing three-dimensional representation by laying out the images at a predetermined interval in a depth direction of three-dimensional representation, and includes a determination unit configured to determine a display interval between the plurality of images belonging to an identical group depending on the number of images contained in the group, a layout unit configured to lay out the plurality of images in a depth direction based on the display interval of each group determined by the determination unit, and a display control unit configured to display the images laid out by the layout unit on the display device.
US08947425B2 Method and apparatus for processing and displaying a three-dimensional image with variable depth effect
A method of processing a 3D image data includes calculating shift values of gray-scales for a reference view using a 3D effect selection signal having a selection depth value of the 3D image inputted by a user. Shift values of the gray-scales respectively corresponding to a plurality of views are calculated using the shift values of the gray-scales for the reference view. The shift values of the gray-scales respectively corresponding to the plurality of views are applied to a source image signal to generate a plurality of image frames.
US08947422B2 Gradient modeling toolkit for sculpting stereoscopic depth models for converting 2-D images into stereoscopic 3-D images
Implementations of the present invention involve methods and systems for creating depth and volume in a 2-D planar image to create an associated 3-D image by utilizing a plurality of layers of the 2-D image, where each layer comprises one or more portions of the 2-D image. Each layer may be reproduced into a corresponding left eye and right eye layers, with one or both layers including a pixel offset corresponding to a perceived depth. Further, a depth model may be created for one or more objects of the 2-D image to provide a template upon which the pixel offset for one or more pixels of the 2-D image may be adjusted to provide the 2-D image with a more nuanced 3-D effect. In this manner, the 2-D image may be converted to a corresponding 3-D image with a perceived depth.
US08947413B2 Changing display artifacts across frames
Displaying an image on a display screen is provided by periodically changing the scanning order in which rows of sub-pixels of the display screen are scanned. One scanning order can be selected to scan the rows in the update of a first image frame of the display, and then a different scanning order can be selected to scan the rows in the update of a second image frame. Particular scanning orders can be selected in order to reduce or eliminate the appearance of visual artifacts by changing the location of the visual artifacts across multiple image frames. For example, different scanning orders that result in visual artifacts at different positions on the display screen can be used, and the selection of scanning order can periodically change among the different scanning orders such that the position of the visual artifacts changes periodically during the updating of multiple image frames.
US08947405B2 Electromagnetic stylus and computer apparatus thereof
An electromagnetic stylus includes a hollow body, a pen-nib device, an energy transforming device, a circuit board, and an electricity storage device. The pen-nib device is disposed at one end of the hollow body. The energy transforming device is disposed in the hollow body for converting variations in a physical quantity into electrical signals. The circuit board is disposed in the hollow body and electrically connected to the energy transforming device for rectifying the electrical signals transformed by the energy transforming device. The electricity storage device is disposed in the hollow body and electrically connected to the pen-nib device, for receiving the electrical signals transmitted from the circuit board to generate electrical energy and providing the electrical energy to the pen-nib device to generate electromagnetic signals.
US08947404B2 Stylus
A stylus may have a flat portion on a movable tip at one end for contact with a flat surface, or a stylus may have movable pins adjustable in response to contact pressure for use with a non-flat surface.
US08947401B2 Display device
We describe a touch sensitive image display device for projecting a touch sensitive displayed image at an acute angle onto a surface on which the device is placed, the device comprising: a first light source to project a first light distribution; a second light source to project a second light distribution; a touch sensor system to remotely detect touch of an area of said surface within or adjacent to said displayed image by detecting change of said first light distribution, and having an output to provide a detected touch signal; a presence sensor system to remotely detect presence of an object at least partially within said second light distribution by detecting change of said second light distribution, and having an output to provide a detected presence signal; a controller configured to control said device responsive to said detected touch signal and further configured to control said device responsive to said detected presence signal.
US08947400B2 Apparatus, methods and computer readable storage mediums for providing a user interface
Apparatus including a support configured to support a portable device; and a display coupled to the support and configured to receive and display a projected image, the projected image being generated by the portable device.
US08947399B2 Dual-substrate capacitive touch panel
A capacitive touch panel sequentially has a first transparent substrate, a lower touch sensitive layer, a lower conductor layer, a lower insulation layer, a lower conductive adhesive layer, a flexible circuit board, a transparent insulation adhesive layer, an upper insulation layer, an upper conductive adhesive layer, an upper conductor layer, an upper insulation ink layer, an upper touch sensitive layer and a second transparent substrate. The aforementioned structure allows fabrication of the capacitive touch panel to be separated into a lower panel fabrication process and an upper panel fabrication process. The two independent fabrication processes prevent the capacitive touch panel from being damaged in one of the processes when the process is completed, thereby increase the yield in production and further facilitate producing large-size touch panel.
US08947391B1 Line spacing in mesh designs for touch sensors
In one embodiment, an apparatus includes a touch sensor that includes a mesh of conductive material configured to extend across a display that includes multiple pixels that each include sub-pixels and dead space. The mesh includes multiple first and second lines of conductive material. The first lines are substantially parallel to each other, and the second lines are substantially parallel to each other. Each of the sub-pixels includes a color element separated from adjacent sub-pixels by dead space. Each of the pixels has a first pixel pitch (PPx) along a first axis and a second pixel pitch (PPy) along a second axis that is substantially perpendicular to the first axis. The first pixel pitch is a distance between corresponding features of two adjacent pixels along the first axis, and the second pixel pitch is a distance between corresponding features of two adjacent pixels along the second axis.
US08947387B2 System and method for identifying users and selecting a haptic response
A touchscreen generates two or more displays that are visible at different viewing angles, e.g., one is visible only from the driver's seat of a car and the other is visible only from the passenger seat of the car. The displays occupy overlapping areas on the display surface such that input controls for the first display may overlap with input controls for the second display. If one of the users engages the display, the user is identified, it is determined which display the user is viewing and then which input he may be supplying, and a haptic stimulus for that display may be generated.
US08947385B2 Method and device for interactive stereoscopic display
Disclosed is a method of interactive display that includes providing a touch-based display screen capable of stereoscopic displaying of object images that further includes displaying a plurality of object images on the display screen, wherein at least a first of the object images is selectable and displayed so as to appear to be located at least partially in a zero-plane of the display screen, wherein at least a second of the object images is displayed so as to appear to be located at least one of inwardly and outwardly of the zero-plane, receiving a first input at a location of the display screen substantially corresponding to the first of the object images, and identifying the first input as corresponding to the first of the object images that is selectable and taking at least one further action upon the identification.
US08947384B2 Liquid crystal display panel with embedded touchscreen components and driving method thereof
The present disclosure relates to an LCD panel and a driving method thereof for realizing the embedded touchscreen function of such a LCD panel. The LCD panel according to the present disclosure comprises: an array substrate, a color filter substrate and a layer of liquid crystal provided between the two substrates, with gate lines and data lines are formed on the array substrate to define pixel units. An embedded touchscreen component is provided on the inner side of the array substrate, comprising: a first conductive line and a second conductive line. The first conductive line and the second conductive line constitute a two-layer structure, with a semiconductor layer being provided between the first conductive line and the second conductive line within the overlapping area of the two lines.
US08947372B2 Electronic device including touch-sensitive display
An electronic device includes a base, a touch-sensitive display moveable relative to the base, piezo actuators disposed between the base and the touch-sensitive display, the piezo actuators including a first piezo actuator and a second piezo actuator spaced from the first piezo actuator, and a controller configured to control the piezo actuators to alternately actuate the first piezo actuator and the second piezo actuator and apply forces to the touch-sensitive display, thereby causing the touch-sensitive display to pivot relative to the base.
US08947371B2 Display device with detection function
Disclosed herein is a display device, including: a display surface; a display functional layer adapted to control the display of a screen viewed from outside the display surface; a drive control section operable to perform display scanning and driving adapted to scan and drive, in the one direction, the plurality of drive electrodes, and also operable to perform, a plurality of times and for M display screens, detection scanning and driving adapted to continuously scan and drive all or part of the plurality of drive electrodes within the period of time; and a plurality of sensor lines arranged in a direction other than the one direction to be separate from each other, which produce an electrical change if an object to be detected comes in contact with or proximity to the display surface while the drive control section performs the detection scanning and driving.
US08947369B2 Digital signal processed touchscreen system
Digital signal processed touchscreen system. The invention employs amplitude ramped signals across a touchscreen. The pattern to which the amplitude ramped electric signals are provided may be located on the surface of the touchscreen, or alternatively on the backside of the touchscreen. The signal processing employed by the invention, using digital signal processing techniques, is operable to discern a user's touch and to determine its location. A dielectric, protective surface is used to enable implementation into a wide variety of applications, including those applications that are environmentally rugged and have, until now, been too rugged for prior art touchscreen systems. The invention employs a user generated unbalanced capacitive load generated on the touchscreen to identify the location of the user's touch.
US08947367B2 Character input apparatus and character input method
A character input apparatus to input a character using a touch and drag method, the character input apparatus including: an interface to display a character on a touched location, if a touch is detected on the interface; a control unit to control the interface to change the displayed character and a location of the displayed character according to a dragging trace, if the touched location is dragged; and an input unit to input the displayed character displayed when the touch is completed. Accordingly, characters may be conveniently input on a narrow screen.
US08947364B2 Proximity sensor device and method with activation confirmation
A touch sensor device and method is provided that facilitates improved device usability. Specifically, the touch screen device and method provide user interface functionality while reducing the possibility of inadvertent activation of certain functions. The touch screen device comprises a proximity sensor adapted to detect object presence in a sensing region, a display screen overlapping the sensing region, and a processor. The touch screen device is adapted to provide user interface functionality by facilitating the display of user interface elements and the selection and activation of corresponding functions. For certain functions, the touch screen device and method uses the presence of a second object to confirm selection of a function before that function will be performed. So configured, the touch device screen is able to reduce the likelihood of inadvertent activation for certain functions on the device.
US08947358B2 Personal care appliance kit
The personal care appliance kit includes a display device; and a handle for an electric device. The display device includes a continuous front panel; a window area being a part of the front panel, which window area is transmissible with respect to an infrared signal radiation; a display area being a part of the front panel, which display area is less transmissible than the window area with respect to the infrared signal radiation; and a receiver unit placed on a backside of the window area and adapted for receiving the infrared signal radiation from a transmitter unit for emitting the infrared signal radiation of the handle for indicating a handle use status; wherein the front panel is a liquid crystal display panel having at least one polarization filter layer; and wherein the at least one polarization filter layer is provided with a cut-out in the window area.
US08947354B2 Portable device and method for controlling the same
A method for controlling a portable device is provided. The method includes detecting bending of the portable device and determining whether to perform motion sensing correction due to the bending; acquiring a motion sensing correction factor for performing the motion sensing correction due to the bending; performing motion sensing correction of at least one motion sensor using the motion sensing correction factor; and controlling the portable device according to the corrected motion sensing.
US08947349B1 Projecting content onto a display medium
Described herein are systems and techniques for detecting a location of a medium and projecting content onto the medium at the detected location. These systems and techniques also track the changing location of the medium while continuing to project the content onto the medium as the location changes. A user consuming the content on the medium is able to move the display medium relative to a projection device that projects the content without interrupting the consumption of the content.
US08947345B2 Display device, and controller
A display device including a display unit having a plurality of pixels includes a calculation unit which accumulates the number of pixels of which display state is changed among the plurality of pixels so as to calculate the accumulated number of update pixels when a part of an image displayed on the display unit is changed, and a refresh control unit which executes a refresh operation of the display unit when the calculated accumulated number of update pixels becomes equal to or more than a defined value.
US08947344B2 Portable device and control method for the same
Disclosed is a portable device having a flexible display unit and a control method for the same. The device provides a dimming mode for dimming the display unit when lack of user input for a preset dimming time is sensed. The dimming mode includes a first dimming mode having a first dimming time and a second dimming mode having a second dimming time. The display unit has a first state before the display unit is expanded, and a second state after the display unit is expanded. A processor of the device converts the device from the first dimming mode to the second dimming mode when the display unit is retracted from the second state to the first state, reverts the device into the first dimming mode when preset user input is sensed, and performs dimming of the display unit when lack of the preset user input is sensed.
US08947342B2 Method and apparatus for controlling the partitions of a backlight unit of a 3D display apparatus
A method and apparatus for controlling a backlight unit of a three-dimensional (3D) display apparatus receiving a 3D video sequence is provided. The method includes determining the image brightness level of the 3D video sequence displayed on a liquid crystal display (LCD) unit, for each of a plurality of partial regions of the LCD unit to which a plurality of sub-blocks of the backlight unit emit light; determining turn-on times of the plurality of sub-blocks of the backlight unit, based on the image brightness of each of the partial regions of the LCD unit; and determining turn-on periods of the plurality of sub-blocks of the backlight unit by synchronizing with a switching period between a set including a left visual point frame and a right visual point frame of the 3D video sequence.
US08947338B2 Driving circuit and display device using multiple phase clock signals
In a driving circuit, one output circuit has a scanning signal line, a first transistor which controls electrical connection between the scanning signal line and a clock signal line which has a gate connected to a first node, the first node which is at an active potential in a first time period including a time period during which the active potential is output to the scanning signal line, a second transistor which electrically connects the first node and an inactive signal line which has a potential to open the transistor in a second time period other than the first time period, and the second transistor has a gate connected to a second node, wherein the second node has two kinds of timings to be charged for retaining the active potential.
US08947336B2 Display driving method with variable scan driving signal, driving module with variable scan driving signal, and display apparatus with variable scan driving signal
A display driving method comprises the steps of: determining a first target-level voltage and a second target-level voltage of a signal of the scan line; determining a first switch time and a second switch time according to an RC loading of the scan line; determining at least one first precharge-level voltage and at least one second precharge-level voltage according to the first target-level voltage, the second target-level voltage, the first switch time, and the second switch time; and outputting the first precharge-level voltage, the first target-level voltage, the second precharge-level voltage, and the second target-level voltage to drive the display panel, wherein the first precharge-level voltage is switched to the first target-level voltage after the first switch time, and the second precharge-level voltage is switched to the second target-level voltage after the second switch time.
US08947333B2 Switchable viewing angle display with local dimming function
A switchable viewing angle display method is provided. The method provides a front panel array of display pixels. Also provided is an array of microlenses underlying the array of display pixels. Each microlens has a focal point and each microlens is associated with a corresponding block of display pixels. A backlight panel has an edge-coupled waveguide pipe with an optical input connected to a column of light emitting diodes (LEDs). The backlight panel includes a top array of selectively enabled extraction pixels, a planar mirror underlying the waveguide pipe, and a bottom array of selectively enabled extraction pixels interposed between the waveguide pipe and the planar mirror. In response to accepting a display viewing angle change command, an extraction pixel is enabled from either the top array or the bottom array, and a waveguide pipe light extraction position is formed, changing the viewing angle.
US08947330B2 Display device, picture signal processing method, and program
There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
US08947328B2 Light emitting device and method of driving the same
The present invention specifies the characteristic of a driving transistor provided in a pixel and corrects a video signal to be inputted to the pixel based on the specification. As a result, a light emitting device and its driving method in which influence of fluctuation in characteristic among transistors is removed to obtain clear multi-gray scale are provided. The present invention can also provide a light emitting device and its driving method in which a change with age in amount of current flowing between two electrodes of a light emitting element is reduced to obtain clear multi-gray scale display.
US08947325B2 Display device
A display device having a first pixel electrode and a second pixel electrode whose areas are different from each other is provided. In the display device, the first pixel electrode and the second pixel electrode are electrically connected to a first transistor and a second transistor, respectively. Gates of the first transistor and the second transistor are electrically connected to each other. A potential is supplied to the first pixel electrode and the second pixel electrode through a wiring electrically connected to the first transistor and the second transistor.
US08947324B2 Display apparatus
A display apparatus, that can prevent thermal destruction and burning with a simple structure, has been disclosed. In the apparatus it is judged that there is possibility of a pattern, whose area with high brightness is small, being displayed frequently, when a state in which the total light emission pulse number remains large occurs with high frequency, and if such a state is detected, the total light emission pulse number (sustain frequency) is reduced to prevent the thermal destruction and burning.
US08947322B1 Context detection and context-based user-interface population
Exemplary methods and systems relate to a wearable computing device determining a user-context and dynamically changing the content of a user-interface based on the determined user-context. The device may determine a user-context based on digital context; such as a text document a user is reading or a current website the device is accessing. User-context may also be based on physical context; such as the device's location or the air temperature around a user. Once a user-context is determined, a device may identify content that is related to the user-context and add objects representing this related content to a user-interface.
US08947316B2 Antenna arrangement
Antenna arrangement for a multi-radiator base station antenna, the antenna having a feeding network based on air filled coaxial lines (1, 2, 3), wherein each coaxial line comprises an outer conductor (8) and an inner conductor (4, 5, 6), wherein an adjustable differential phase shifter including a dielectric part (9) is arranged in the antenna and said dielectric part being movable longitudinally in relation to at least one coaxial line 1, 2, 3).
US08947315B2 Multiband antenna and mounting structure for multiband antenna
An antenna that resonates at each of at least operating two frequency bands includes a first LC parallel circuit having a first impedance between a feeding element and a feeding circuit, and a second LC parallel circuit having a second impedance between a parasitic element and ground. The feeding element and the parasitic element are configured such that multiple resonant frequencies are positioned between the two operating frequency bands in a case where the impedances of the first and second LC parallel circuits are set to 0, and the LC parallel circuits having the first and second impedances cause the multiple resonance frequencies to shift to an operating frequency band on the lower frequency side and to the higher frequency side, of the two operating frequency bands.
US08947314B2 Mobile communication device and built-in antenna integrated with a ground portion thereof
A mobile communication device includes an antenna structure having a dielectric substrate and an antenna. The dielectric substrate includes a ground portion, a first non-ground portion, and a second non-ground portion. The ground portion further includes a main ground and a protruded ground electrically connected to the main ground and extending between the first non-ground portion and the second non-ground portion. The first non-ground portion and the second non-ground portion are separated by the protruded ground. One edge of the protruded ground aligns with one edge of the dielectric substrate. The antenna includes a feeding portion located in the first non-ground portion and a radiating portion extending over the protruded ground and having a first end located in the first non-ground portion and electrically connected to the main ground and a second end of the radiating portion is located in the second non-ground portion and electrically connected to the main ground. There is a coupling gap between the radiating portion and the feeding portion in the first non-ground portion, and the radiating portion is excited by the capacitive coupling effect from the feeding portion.
US08947313B2 Radial-free collinear omni-directional antenna with gain and virtual ground
An omni-directional antenna operable absent ground radials and providing at least 3 dB gain at a chosen wavelength relative to a dipole includes first and second like-oriented J-pole antennas and, coupled intermediate said J-pole antennas, a quarter-wavelength non-radiating delay line. Each J-pole antenna includes a half-wave radiating element, and a quarter-wavelength non-radiating section. The quarter-wavelength non-radiating delay line together with the quarter-wavelength non-radiation section of the second J-pole provide a half-wave non-radiating delay line. The result is that RF energy radiated by the first and second half-wave radiating elements are in proper phase, whereby gain is achieved. RF energy is coupled to the first J-pole antenna a distance Δ above the zero impedance end of that antenna.
US08947308B2 Method and apparatus for controlling an antenna
A system that incorporates the subject disclosure may include, for example, a method for coupling a primary antenna to an auxiliary antenna portion with a current-controlled switch. The method further includes generating a unidirectional direct current or a first bias voltage having a first polarity to cause the current-controlled switch to substantially form a conduction channel between the primary antenna and the auxiliary antenna portion. While the conduction channel is present, a first resonance frequency range of the primary antenna is frequency shifted to a second resonance frequency range. The method can also include removing the unidirectional direct current or generating a second bias voltage having a second polarity to cause the current-controlled switch to form an open circuit between the primary antenna and the auxiliary antenna portion. While the open circuit is present, the first resonance frequency range of the primary antenna is restored. Other embodiments are disclosed.
US08947305B2 Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control
An electronic device may have a housing in which an antenna is mounted. An antenna window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit power when an external object is detected in the vicinity of the dielectric antenna window and the antenna. A capacitive proximity sensor may be used in detecting external objects in the vicinity of the antenna. The proximity sensor may have conductive layers separated by a dielectric. A capacitance-to-digital converter may be coupled to the proximity sensor by inductors. The capacitive proximity sensor may be interposed between an antenna resonating element and the antenna window. The capacitive proximity sensor may serve as a parasitic antenna resonating element and may be coupled to the housing by a capacitor.
US08947304B2 Mobile terminal having a metal-based cover member
A mobile terminal is disclosed. The present invention includes a front case, a rear case mounted to the front case, a controller provided between the front case and the rear case, a power supply provided in the rear case and a cover member provided on the rear case, the cover member comprising an insulating layer configured to oppose the power supply and a conductive layer located on the insulating layer such that the conductive layer is externally exposed, wherein the conductive layer is electrically connected to the controller for wireless communication.
US08947303B2 Peripheral electronic device housing members with gaps and dielectric coatings
An electronic device such as a handheld device may have a rectangular housing with a rectangular periphery. A conductive peripheral housing member may run along the rectangular periphery and may surround the rectangular housing. Radio-frequency transceiver circuitry within the electronic device may be coupled to antenna structures for transmitting and receiving radio-frequency signals. The conductive peripheral housing member may form part of the antenna structures. A gap in the conductive peripheral housing member may be filled with dielectric. The conductive peripheral housing member may be configured to form a recess. The recess may have the shape of a rectangle, oval, diamond, or other shape that overlaps and is bisected by the gap. The recess may also have the shape of a groove that extends around the entire periphery of the housing. The dielectric in the recess may include one or more different materials such as clear and opaque polymers.
US08947300B2 Control and features for satellite positioning system receivers
Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a system for mode switching between a navigational signal; and power control module for receiver.
US08947294B1 Method and system for adaptively cancelling clutter from the sidelobes of a ground-based radar
A system and method of providing to a beamformer a modified complex beam steering vector includes collecting subarray I/Q samples from a plurality of subarrays receiving clutter, performing coherent integration of the subarray I/Q samples to increase the CNR, adaptively modifying a complex beam steering vector to form a null in the direction of the received clutter, and outputting to a beamformer the modified complex beam steering vector. The beamformer receives complex I/Q data samples representing a radar signal containing near-horizon clutter and applies the modified beam steering vector to generate a beamformed signal having an elevated mainlobe and a spatial sidelobe null in the direction of the received clutter.
US08947292B2 Radar system and method for a synthetic aperture radar
A radar system for a synthetic aperture radar including an arrangement of at least one transmitter, two receivers, two antennas and signal processing means located on a platform. The platform is arranged to move over ground and arranged to transmit a known signal shape and receive signals reflected from the ground. The received signals are used to produce a synthetic aperture radar image of the ground. The synthetic aperture radar image includes a number of resolution cells. The radar system is further arranged to operate in a frequency band with a center frequency and with a wide bandwidth of at least one octave. A first antenna and a second antenna have a length of less than half the wavelength of the center frequency. The radar system is further arranged for: a radar system transfer function to be flat over the frequency band and one-sided beam forming with wideband antenna gain. Also a corresponding method.
US08947288B2 Analog-digital converter
A differential analog-digital converter is provided. The converter comprises a decision unit for evaluating a potential difference between two input signal lines, a number of charging units for each input signal line each configured to add a predetermined charge onto the respective input signal line, a number of discharging units for each input signal line each configured to remove a predetermined charge from the respective input signal line and a control unit for selectively switching each of the charging units and discharging units so that depending on one result of evaluating the potential difference between the two input signal lines one of the input signal lines is charged by adding the predetermined charge of the respective switched charging unit while the respective other of the input signal lines is discharged by removing the predetermined charge of the respective switched discharging unit.
US08947284B2 AD converter and AD conversion method
An A/D converter includes a plurality of AD converting sections that sequentially operate at predetermined intervals. The AD converting section has an ADC that converts an analog signal into a digital signal and outputs the digital signal, a memory that stores, as a specific polarity value, the polarity of a signal obtained by the ADC digitizing an analog signal at a reference voltage, an analog polarity converting circuit that inverts the polarity of the analog signal based on the specific polarity value and a set polarity value, which is previously set, and a digital polarity converting circuit that inverts the polarity of the digital signal based on the specific polarity value and the set polarity value.
US08947283B2 Sampling front-end for analog to digital converter
A sampling front-end for analog to digital converter is presented that shares a high speed N-bit ADC at front-end and interleaves the pipelined residue amplification with shared amplifier, which achieves high speed, low power and compact area with high density capacitive DAC structure.
US08947281B1 Apparatus and methods for actively terminated digital-to-analog conversion
Apparatus and methods for digital-to-analog conversion are disclosed. In one embodiment, an electronic system includes a bias circuit and a digital-to-analog converter (DAC) including an input that receives a digital input signal and an output that drives a transmission line. The digital input signal can be used to control a magnitude and polarity of an output current of the DAC. The DAC further includes one or more p-type metal oxide semiconductor (PMOS) termination transistors that receive a first bias voltage from the bias circuit and one or more n-type metal oxide semiconductor (NMOS) termination transistors that receive a second bias voltage from the bias circuit. The bias circuit controls the voltage levels of the first and second bias voltages to control the termination transistors' small signal resistance to actively terminate the DAC's output.
US08947280B2 Analogue-to-digital converter
An integrated-circuit, continuous-time, sigma-delta analog-to-digital converter has a single-ended analog input, a converter reference input, and a ground connection. The converter has a resistor-capacitor integrator arranged to receive the single-ended analog input. The integrator comprises a differential amplifier. The converter also has a clocked comparator connected to an output from the integrator, and circuitry arranged so that reference inputs to the amplifier and to the comparator can be maintained at a common voltage derived from the converter reference input.
US08947279B2 Delta/sigma modulator
According to one embodiment, a delta/sigma modulator includes a first multiplier based on a reference capacitor having capacitance CR and a first variable capacitor having capacitance CS1 according to a distance between electrodes thereof, the first multiplier being defined by a first multiplier factor given by CR/CS1 and being supplied with a reference voltage, a second multiplier based on a second variable capacitor having capacitance CS2 and a third variable capacitor having capacitance CS3, the second multiplier being defined by a second multiplier factor given by CS3/CS2 and being provided in a feedback path, and an adder configured to add an output of the first multiplier and an output of the second multiplier, wherein CS1, CS2 and CS3 are the same.
US08947274B2 Encoding apparatus, decoding apparatus, encoding method, encoding program, decoding method, and decoding program
A data predicted value generating unit generates a predicted value (data predicted value) for original data intended to be encoded, based on a history of original data which is floating-point data. A data predicted value modifying unit adjusts a mantissa value of the data predicted value by aligning an exponent value of the data predicted value with an exponent value of the original data. A first residual generating unit generates a residual (first residual) between new original data and the data predicted value after being adjusted. A first residual predicted value generating unit generates a predicted value for the first residual (first residual predicted value), based on a history of first residuals. A second residual generating unit generates a residual (second residual) between the first residual and the first residual predicted value. A residual encoding unit generates encoded data by encoding the second residual.
US08947272B2 Decoding encoded data
A method for decoding encoded data includes receiving data encoded by replacing each of a plurality of characters with bit strings. The method also includes recording, on the basis of definition information, at least one of the characters as corresponding to each of the bit lengths, and generating decode information based on the number of characters, wherein the decode information includes bit string information for sorting the bit strings in a bit length order that is a predetermined order associated with bit lengths. The method also includes, in response to receiving a particular bit length, generating character information in which the characters are sorted in the bit length order by inserting a character corresponding to the particular bit length into a position corresponding to the particular bit length in an array in which at least one of the bit lengths.
US08947271B2 Multiple technique entropy coding system and method
A system, method and computer program product having optimal matching to a known or measured probability distribution encodes data without the use of an excessively large lookup table. An encoder constructed according to the present invention uses two or more different encoding methods in combination. In one embodiment, Huffman coding by table lookup is combined with computational generation, such as by using an exponential Golomb equation. The most commonly occurring elements are looked up in a small Huffman table, while the remaining elements are coded with the equation. In another embodiment, data is encoded using two or more equations. In yet another embodiment, data is encoded using multiple tables in conjunction with one or more equations.
US08947267B2 Method and device for displaying information by means of a dual-view display in a passenger cabin of an aircraft or spacecraft
A method for displaying information by means of a dual-view-display in a passenger-cabin of an air-/spacecraft, comprising the following steps: providing the dual-view-display on a predetermined portion of the passenger-cabin; providing first information by means of the dual-view-display, in such a way that said information can be perceived from a gangway between rows of seats of the passenger cabin; and simultaneously providing second information, different from the first information, by means of the dual-view-display, in such a way that said information can be perceived from one of the rows of seats. A display device for displaying information in a passenger-cabin of an air-/spacecraft, comprising a dual-view-display which is arranged on a predetermined portion of the passenger-cabin, the dual-view-display being configured to provide first and second information in the above described ways. A passenger-cabin for an air-/spacecraft comprising said display-device. An air-/spacecraft comprising said display-device or said passenger-cabin.
US08947263B2 Assessing traffic status with sensors
A computer-implemented method for assessing traffic status with sensors is provided. The method includes receiving sensor readings from a plurality of mobile sensors for detecting a traffic parameter and obtaining traffic information associated with the received sensor readings. The method also includes identifying a change in traffic based on the obtained traffic information and the received sensor reading, and determining whether a traffic incident has occurred based on the identified change. Systems and machine-readable media are also provided.
US08947261B1 Parking information aggregation platform
This document describes systems and techniques that may be used to aggregate information about open parking spots from various different parking providers or organizations.
US08947254B2 Systems and methods for managing information associated with boxes used in the delivery of packages
There is disclosed methods and systems for managing drop boxes. Events reflecting outputs from one or more sensors are detected. Information that is a function of the detected event is forwarded to a drop box management system. This information, along with additional information received by the drop box management system, is utilized to generate instructions including display instructions for each drop box. Displays of drop boxes are then updated based on the instructions.
US08947252B2 Firearms management system
A device, system, and associated methods for the management of firearms for locating, tracking, monitoring, indentifying discharge, and related management tasks are disclosed. In one embodiment, a firearm is disclosed having a processor adapted for storing information and receiving and acting upon command and a location monitor adapted to provide specific geographic location information. The processor and location monitor can be integrally formed in a single electronic device. The firearm also includes a connectivity port and a connectivity cable. The system can also include a monitoring station and a configuration computer. In at least one embodiment, a firearm utilizes a processor and a GPS monitor for locating, tracking, monitoring, indentifying discharge, and related management tasks.
US08947250B2 Apparatus and method for alerting a state of a portable terminal
An alert method in a portable terminal which includes: examining an output of a terminal condition detection unit, detecting a condition in which the portable terminal is tiled when an event to examine a designated condition is received or generated, obtaining the alert information from a memory which stores alert information of the designated condition and default alert information, and producing an alert by displaying information of the designated condition if the portable terminal is in the designated condition.
US08947249B1 Apparatus and method for conducting hot work
In the specification and drawings, an apparatus for conducting hot work is described and shown with an enclosure; a hot work apparatus operable within the enclosure; and a detector located exterior of the enclosure, the detector being in detecting communication with the interior of the enclosure, such that the detector detects the presence of a condition within the enclosure. A method of conducting hot work is also described and shown.
US08947248B2 Input apparatus
Damaging a touch sensor is prevented by an input apparatus including a pressing load detection unit 102 for detecting a pressing load applied by a pressing object pressing a touch sensor, a contact area detection unit 103 for detecting a contact area of the object on the sensor, a memory unit 105 for storing a pressing load threshold for receiving an input and a damage threshold higher than the pressing load threshold and varies according to the contact area, a control unit 104 for obtaining the pressing load threshold and the damage threshold corresponding to the contact area from the memory unit, and receiving the input when the pressing load reaches the pressing load threshold, or generating a warning signal when the pressing load reaches the damage threshold, and a notification unit 106 for receiving the warning signal from the control unit and outputting a warning.
US08947246B2 Utility meter arc detection system
Systems for detecting arcing faults inside a utility meter are disclosed. In one embodiment, an arc detection system for a utility meter is disclosed including: a photoreceptor sensor configured for placement within a utility meter housing; and a computing device communicatively connected to the photoreceptor sensor, the computing device adapted to monitor arcing events within the utility meter housing by performing actions comprising: obtaining illumination data about an area within the utility meter housing from the photoreceptor sensor; and analyzing the illumination data to determine whether an arcing event has occurred within the utility meter.
US08947244B2 Smoke detector utilizing broadband light, external sampling volume, and internally reflected light
In accordance with certain embodiments, a smoke detector utilizes broadband light with a plurality of wavelengths to determine the presence of smoke.
US08947243B2 Smoke detector with external sampling volume and utilizing internally reflected light
In accordance with certain embodiments, a smoke detector comprises a housing, a light source, one or more light detectors, and an evaluation circuit for determining the presence of smoke particles outside the housing based on light emitted from and reflected back into the housing, as well as light emitted within the housing without emission therefrom.
US08947240B2 System for detecting information regarding an animal and communicating the information to a remote location
An animal data communication system, including a rover unit to be carried by an animal, an animal accessory device to interact with the rover unit and/or animal, at least one detector to detect an occurrence of an action engaged in by the animal, and to generate a signal indicative of a detected action, a processing unit to generate animal data identifying the detected action based on the generated signal, and a communication unit disposed on at least one of the rover unit and the animal accessory device to transmit the animal data over a network in response to an occurrence of one or more particular conditions associated with the detected action.
US08947237B2 Physiological data acquisition utilizing vibrational identification
The present invention utilizes an accelerometer (included within a wireless physiology monitoring device or as part of a separate device such as, but not limited to a smartphone, e.g., iPhone, or other mobile device) to link a patient with a separate medical data acquisition device such as a weight scale or a blood pressure monitor in order to collect and transmit a range of medical data associated with the user. The medical data acquisition device includes a vibration source for emitting a vibration at a predetermined or random frequency. When the acquisition device is activated, a vibration is transmitted from the through the patient and is detected by the accelerometer. The accelerometer then measures the particular frequency of vibration and transmits this information to a centralized monitoring unit (CMU). Based on the measured frequency, the CMU is able to know that the same patient wearing/holding the device is also the same patient using the data acquisition device. The vibration source may revolve through a number of predetermined frequencies (as determined on its own or instructed via the CMU) or simply generate a random frequency.
US08947235B2 Inventory and anti-theft alarm system
An inventory and anti-theft alarm tag system that has (1) one or more RFID tags and (2) a master database. The RFID tags can include an RFID transmitter and an RFID inlay having a unique item number encoded therein. The RFID transmitter allows communication between the RFID tags and the master database. The master database can compare information from the RFID tags with information stored in the master database to determine if the RFID tags are authentic and have been opened or closed a defined number of times indicated in the master database, and if not, a message can be sent for investigation.
US08947232B2 Fault-tolerant distributed fiber optic intrusion detection
An intrusion detection system for monitoring a premises includes at least one optical cable that houses at least one optical fiber and extends about the premises. Optical time domain reflectometry (OTDR) means is operably coupled to opposite first and second ends of the at least one optical fiber. The OTDR means includes first signal processing circuitry that analyzes the backscatter signal received via the first end of the at least one optical fiber in order to detect an intrusion of the premises, and second signal processing circuitry that analyzes the backscatter signal received via the second end of the at least one optical fiber in order to detect an intrusion of the premises. The redundancy of intrusions decisions made by the first and second signal processing circuitry can be verified. The system preferably further includes means for detecting a break in the at least one fiber, for identifying location of the break, for outputting to a user the location of the break, and for raising an alarm indicating the break.
US08947230B1 Electronic device with environmental monitoring
An environmental monitoring device that includes an acoustic sensor is described. During operation of the environmental monitoring device, the acoustic sensor provides acoustic data based on measurements of sound in an external environment that includes the environmental monitoring device. Based on the acoustic data, a control mechanism determines if an alarm device, which is separate from the environmental monitoring device, is activated. For example, the environmental monitoring device may determine if a smoke detector is activated based on measurements of sound, such as a temporal 3 acoustic pattern. In addition, a sensor mechanism in the environmental monitoring device may provide sensor data based on measurements of an environmental condition in the external environment. The control mechanism may use the sensor data to assess a degree of threat in the external environment, and the environmental monitoring device may output different audible sounds as the degree of threat changes.
US08947225B2 Providing information about mobile communication devices with respect to an area of interest
A method and system for providing information about mobile communication devices with respect to an area of interest is disclosed. Initially, information about an event having an area of interest is received. A request is provided to one or more communications providers that cover the area of interest for a listing of any mobile communication devices located within the area of interest. The listing of any mobile communication devices located within the area of interest is utilized to establish an approximate number of persons in the area of interest.
US08947224B2 Environmental data collection
One computer readable medium embodiment includes computer readable instructions stored thereon for execution by a device to perform a method of environmental data collection. The method can include receiving environmental data and associated time data. The method can also include aggregating time data into categories of environmental data within, above, and below a range. The method can further include outputting the aggregated and categorized time data.
US08947207B2 Method and apparatus for a deployable radio-frequency identification portal system
In one embodiment, an apparatus includes a first assembly, a second assembly, and a coupling element coupled to the first assembly and the second assembly. The first assembly includes a processor, a memory, and a radiator module, the processor operatively coupled to the memory and the radiator module. The second assembly includes a radiator operatively coupled to the radiator module. The second assembly is movable relative to the first assembly about the coupling element between a first configuration and a second configuration. The processor is configured to interrogate a radio-frequency identification module via the radiator module and the radiator when the second assembly is in the second configuration.
US08947204B1 Optical interrogation and registration system
A system and method for identifying an object are provided. An encoded substrate includes at least one layer of material having a matrix of zones arranged on surface thereof to represent optically coded information. At least one zone of the matrix of zones is configured to absorb a predetermined first wavelength of an electromagnetic radiation. A scanner is configured to receive a reflected electromagnetic radiation associated with the matrix of zones. The optically coded information is extracted from the reflected electromagnetic radiation.
US08947201B2 Biometric access control system
A biometric access control system, and a weapon rack. The system may include an identification station including a biometric reader, an equipment identification reader, and a user interface, and an equipment structure in communication with the identification station and including a plurality of locks corresponding to a plurality of storage locations. The weapon rack may include a plurality of storage locations individually storing a plurality of weapons, and including a plurality of weapon stock receiving and supporting pockets to secure the weapons, a plurality of clamps corresponding to the plurality of storage locations to additionally secure the weapons, and a plurality of sensors aligned with the plurality of clamps to indicate presence or absence of the plurality of weapons.
US08947198B2 Bootstrapping access models in the absence of training data
A plurality of access models comprise patterns of accesses to resources protected by an Access Control System (ACS). The access models are used to classify the accesses to the resources as either normal or anomalous. The system stores attributes for the individuals for whom the access models are available, receives attributes of an individual not associated with an access model, and compares the attributes of the individual not associated with an access model to the attributes of the individuals for whom access models are available. The system further selects an access model for the individual not associated with an access model based on the comparison, and uses the selected access model for the individual not associated with an access model to classify access to the one or more resources protected by the ACS by the individual not associated with an access model as either normal or anomalous.
US08947194B2 Theft detection and prevention in a power generation system
A system for generation of electrical power including an inverter connected to a photovoltaic source including a theft prevention and detection feature. A first memory is permanently attached to the photovoltaic source. The first memory is configured to store a first code. A second memory is attached to the inverter. The second memory configured to store a second code. During manufacture or installation of the system, the first code is stored in the first memory attached to the photovoltaic source. The second code based on the first code is stored in the second memory. Prior to operation of the inverter, the first code is compared to the second code and based on the comparison; the generation of the electrical power is enabled or disabled.
US08947189B2 Multilayer chip inductor and production method for same
A group of magnetic sheets are stacked and connected via through-holes, on each of which magnetic sheets a circling pattern having connection parts at its corners and ends is formed to form a spiral coil pattern. Leader patterns each have a leader part formed at a position not overlapping with the circling parts of the coil pattern and connected to an external terminal electrode, as well as two connection parts that continue to the leader part and are formed at positions corresponding to the connection parts of the circling patterns, together with a cutout formed between the two connection parts. Magnetic sheets with the leader patterns are provided at the top and bottom of the laminate forming the coil pattern. The multilayer chip inductor can suppress decrease in core area caused by displacement due to the stacking.
US08947188B2 Tap changer and vacuum interrupter for such a tap changer
The invention relates to a tap changer for the interruption-free switchover between winding taps of a tap-changing transformer. Furthermore, the present invention relates to a novel vacuum interrupter which is particularly suitable for such a tap changer. The tap changer according to the invention is based on the general concept of combining in each case one main contact (V1) and one mechanical switching means (U1), connected in series therewith, of a first load branch and an additional resistive contact (V3) of a second load branch in only a single vacuum interrupter (1) with a common housing (5). The vacuum interrupter (1) according to the invention is furthermore based on the general inventive concept of replacing the functionalities of two required vacuum interrupters in accordance with the prior art and an additional mechanical switching means with a single vacuum interrupter (1) according to the invention by virtue of combining the design of a vacuum interrupter (1) with a plurality of moveable contact systems (I, II, III), which are arranged in separate vacuum interrupter chambers (2, 3, 4) which are sealed with respect to one another.
US08947185B2 Magnetic system
A multilevel magnetic system described herein includes first and second magnetic structures that produce a net force that transitions from an attract force to a repel force as a separation distance between the first and second magnetic structures increases. The multi-level magnetic system is configured to maintain a minimum separation distance between a transition distance where the net force is zero and a separation distance at which a peak repel force is produced.
US08947183B2 Contact switching device
An object of the present invention is to provide a contact switching device that does not require proficiency for brazing a metal component to a through-hole of a sealed container made of ceramic, and is excellent in impact resistance. For this, there is provided a contact switching device that drives a contact mechanical portion arranged inside a sealed space to switch contacts, based on excitation and degauss of an electromagnet portion arranged outside the sealed space. Particularly, a ceramic plate (131) holding a fixed contact terminal (133) of the contact mechanical portion, and a first metal component are bonded and integrated to form the sealed space, and an outer circumferential portion of a vent pipe (134) is brazed through a metal ring portion (172a) arranged along an opening edge portion of a through-hole (131b) provided in the ceramic plate (131).
US08947181B2 Arc runner assembly and circuit interrupter
An arc runner assembly for use in a circuit interrupter provides a pair of arc runners that are situated at opposite sides of a stationary contact of the circuit interrupter. If used in a DC application, the arc runner assembly is configured to communicate a positive DC arc along one of the arc runners in a first direction away from the stationary contact and is further configured to communicate a negative DC arc along the other arc runner in another direction away from the stationary contact. The arc runner assembly additionally includes a support that is electrically engaged with a conductor of the circuit interrupter on a surface opposite that on which the stationary contact is disposed. The improved arc runner assembly advantageously facilitates extinction of electrical arc and extinguishes both positive and negative DC arcs in a DC application.
US08947177B2 Coupling mechanism for a PCB mounted microwave re-entrant resonant cavity
The microwave signals are coupled from a transmission line embedded in a Printed Circuit Board PCB to a resonant cavity mounted on an external metalized surface of this PCB. The coupling mechanism implements an easy-to-fabricate mechanism leading to high-quality filtering owing to the fact that the end of the transmission line is provided with a metalized feeding pad located at the external layer of the PCB inside the resonant cavity. The resonant cavity is provided with a re-entrant inner stub orthogonal to the PCB and separated from the PCB by a capacitive gap. The metalized feeding pad is facing the inner stub in the area of the capacitive gap and is offset from the axial direction of this inner stub. The metalized feeding pad is further separated from the external metalized surface of the PCB by a surface capacitive gap.
US08947173B2 Ferrite circulator with asymmetric features
A ferrite element for a circulator comprises a first segment extending in a first direction from a center portion of the ferrite element; a second segment extending in a second direction from the center portion of the ferrite element; and a third segment extending in a third direction from the center portion of the ferrite element. Each of the first segment, the second segment, and the third segment has a respective width and include a channel located at a respective distance from a center point of the ferrite element. At least one of the respective width of each segment or the respective distance from the center point for the channel in each segment is different for each respective segment such that the first segment operates over a first frequency sub-band, the second segment operates over a second frequency sub-band, and the third segment operates over a third frequency sub-band.
US08947172B2 Polar transmitter having frequency modulating path with interpolation in compensating feed input and related method thereof
A frequency modulating path for generating a frequency modulated clock includes a direct feed input arranged for directly modulating frequency of an oscillator, and a compensating feed input arranged for compensating effects of frequency modulating on a phase error; wherein the compensating feed input is resampled by a down-divided clock that is an integer edge division of the oscillator. A reference phase generator for generating a reference phase output includes a resampling circuit, an accumulator and a sampler. The resampling circuit is for resampling a modulating frequency command word (FCW) input to produce a plurality of samples. The accumulator is for accumulating the samples to generate an accumulated result. The sampler is for sampling the accumulated result according to a frequency reference clock, and accordingly generating a sampled result, wherein the reference phase output is updated according to at least the sampled result.
US08947168B2 Electronic circuitry
Electronic circuitry comprising operational circuits of active switching type requiring timing signals, and conductive means for distributing said timing signals to the operational circuits, wherein the timing signal distribution means includes a signal path that has different phases of a drive signal are supplied via active means at different positions about the signal path where that path exhibits endless electro-magnetic continuity without signal phase inversion or has interconnections with another signal path having different substantially unidirectional signal flow where there is no endless electromagnetic continuity between those signal paths and generally has non-linear associated circuit means where the signal path is of a transmission line nature.
US08947167B2 Reference-less frequency detector
Embodiments provide a reference-less frequency detector that overcomes the “dead zone” problem of conventional circuits. In particular, the frequency detector is able to accurately resolve the polarity of the frequency difference between the VCO clock signal and the data signal, irrespective of the magnitude of the frequency difference and the presence of VCO clock jitter and/or ISI on the data signal.
US08947166B2 Radio frequency power amplifier
A radio frequency power amplifier includes: an amplifying element which amplifies an input signal and outputs the signal from an output terminal; and an output load circuit which includes a first resonant circuit and a second resonant circuit that are connected to the output terminal. The first resonant circuit has a resonance frequency higher than the frequency of the second harmonic of the input signal, and the second resonant circuit has a resonance frequency lower than the frequency of the third harmonic of the input signal. The output load circuit has such an impedance looking from the output terminal that a phase of a reflection coefficient at the second harmonic of the input signal is greater than 180 degrees and less than 360 degrees, and a phase of a reflection coefficient at the third harmonic of the input signal is greater than 0 degrees and less than 180 degrees.
US08947164B2 Integrated technique for enhanced power amplifier forward power detection
A power amplifier has power detection capabilities that include a radio frequency (RF) power amplifier that has a gain stage that includes a gain stage input, a gain stage output, and a feedback loop coupled between an input and an output of the power amplifier. A detection circuit has a first detection circuit input electrically coupled to the gain stage input and has a detection circuit output. An amplitude control circuit and a phase control circuit are electrically coupled together in series between the gain stage output and a second detection circuit input. The amplitude control circuit and the phase control circuit produce a signal that is received by the second detection circuit input so that the detection circuit can detect a signal at the detection circuit output that is proportional to a the forward power output of the power amplifier and is insensitive to power amplifier output load mismatch.
US08947162B2 Power control
An amplification stage comprising: an input scaling block for scaling an input signal based on an input scaling factor to generate a scaled version of the input signal; a power amplifier for receiving the scaled version of the input signal and for generating an amplified version of said signal; an envelope detector for generating a signal representing the envelope of the input signal; an envelope scaling block for scaling the envelope signal based on an envelope scaling factor to generate a scaled version of the envelope signal; a non-linear mapping block for generating a voltage representative of the supply voltage based on the scaled envelope signal; a modulator for generating a power supply voltage for the amplifier based on the voltage generated by the non-linear mapping block; and a power control block for maintaining a linear relationship between the envelope scaling factor and the input scaling factor.
US08947160B2 On-chip millimeter wave Lange coupler
A Lange coupler having a first plurality of lines on a first level and a second plurality of lines on a second level. At least one line on the first level is cross-coupled to a respective line on the second level via electromagnetic waves traveling through the first and second plurality of lines. The first and second plurality of lines may be made of metal, and the first level may be higher than the second level. A substrate may be provided into which the first and second plurality of lines are etched so as to define an on-chip Lange coupler.
US08947155B2 Solid-state relay
A solid-state relay is provided, which includes a first transistor, a second transistor, a first transmission circuit, and a second transmission circuit. A gate of the first transistor is connected to one of a source and a drain of the second transistor, one of a source and a drain of the first transistor is connected to a first terminal, and the other of the source and the drain of the first transistor is connected to a second terminal. The first transmission circuit supplies a first signal to the gate of the first transistor. The second transmission circuit supplies a second signal to a gate of the second transistor. The first terminal is connected to the second terminal when the first transistor is turned on by the first signal.
US08947154B1 Method and system for operating gallium nitride electronics
An electronic circuit comprising a driver and a main transistor are provided. The driver may include a bias voltage generator, a supplementary transistor, and an output driver. The bias voltage generator may be configured to receive a voltage input and generate a biased voltage output based on the voltage input. The supplementary transistor may have a gate coupled to the biased voltage output of the bias voltage generator, and a source of the supplementary transistor providing a current to the bias voltage generator. The output driver may be configured to receive the biased voltage output from the bias voltage generator and the voltage input, receive the voltage input, and output a drive voltage. The main transistor of the electronic circuit may have a gate, a coupled to the drive voltage, and a drain coupled to a drain of the supplementary transistor.
US08947139B1 Apparatus for doubling the dynamic range of a time to digital converter
An apparatus increases the dynamic range of a time to digital converter. The apparatus includes: an input network configured to receive a first signal, a second signal, and a control signal having a sign value; and a time-to-digital converter (TDC) configured to generate a digital code value that represents a time delay value between the first signal and the second signal. The input network is configured to switch where the first signal and second signal are output in response to the sign value that is determined by the time delay value between the first signal and the second signal.
US08947131B2 Multi-voltage supplied input buffer
An input buffer capable of interfacing higher-voltage logic signals to lower voltage internal circuitry includes a first stage configured to generate a first output signal in response to an input signal, the first stage configured to receive a first power supply voltage and including semiconductor circuit components configured to be variably biased responsive to a variable voltage. The input buffer also includes a second stage configured to receive the first output voltage and to responsively generate a second output signal, the second stage biased according to the first power supply voltage. The input buffer further includes a bias circuit configured to generate the variable voltage responsive to a state of the input signal.
US08947130B2 Driver having low power consumption and method thereof
A driver having low power consumption includes a first input terminal, a second input terminal, an output terminal, a power supply terminal, a ground terminal, a driving circuit, an adjusting circuit connected to the driving circuit and a biasing circuit which is connected to the driving circuit and the adjusting circuit. A method for accomplishing low power consumption of a driver is also provided. The method accomplishes an object of low power consumption by dynamically adjusting a driving current of a driver according to a difference between inputted differential signals.
US08947129B2 High voltage switching circuits
The preferred embodiments of the present invention use low voltage transistors to support high voltage switching circuits by connecting low voltage circuits in a stacking configuration. High voltage switching signals are divided into a plurality of small amplitude switching signals before sending into transformers, filters or other circuits. The resulting circuits can support high voltage applications while achieving cost and performance advantages of low voltage circuits.
US08947118B2 Defect detection in integrated circuit devices
In a method of testing integrated circuit devices, a parameter, such as initial voltage may first be measured. A low pass filter operation may be applied to the measured data to generate peer data. A particular integrated circuit device may be identified as failed or rejected when its measured parameter varies sufficiently relative to the peer data.
US08947117B2 Signal transmission circuit device, semiconductor device, method and apparatus for inspecting semiconductor device, signal transmission device, and motor drive apparatus using signal transmission device
Disclosed is a signal transmission circuit device (200) including a feedback signal transmission unit (210) that feeds back a control output signal (Sout) as a feedback signal (Sf) to an input side circuit (200A). A logical comparison circuit (212) detects “mismatch” between input and output by performing logical comparison between a control input signal (Sin) and the feedback signal (Sf). When a state of “mismatch” between input and output occurs, a first pulse generating circuit (202) or a second pulse generating circuit (204) outputs a first correction signal (Sa1) or a second correction signal (Sa2) corresponding to a potential (high level or low level) of the control input signal (Sin), and corrects the control output signal (Sout) to the same potential (high level or low level) as the control input signal (Sin). With such configuration, the mismatch between input and output can be automatically corrected.
US08947116B2 System for testing an integrated circuit of a device and its method of use
A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.
US08947112B2 Switching apparatus and test apparatus
Provided is a switching apparatus that switches a connection state between two terminals, comprising a switch that switches the connection state between the two terminals according to a control voltage supplied thereto; a driving section that provides the switch with the control voltage corresponding to a control signal supplied thereto; and a changing section that changes the control voltage output from the driving section, according to a designated switching time. The changing section may change power supplied as a power supply to the driving section, according to the designated switching time. The changing section may change the control voltage output from the driving section prior to switching of the switch.
US08947110B2 Suspension device for a membrane test system
Embodiments of suspension clamps for use in testing membrane samples used in fuel cells are provided. One example of a suspension clamp comprises a frame, a clamp member, a plurality of electrodes, and a suspension component. The clamp member is hingedly attached to one end of the frame. Each of the plurality of electrodes extends along a membrane-facing surface of at least one of the clamp member and the frame. A suspension component is attached to at least one of the clamp member and the frame and is configured to suspend the suspension clamp during testing of a membrane sample. The suspension clamp can be used to measure one or more of resistance, impedance, conductance, proton permeability and through-thickness of the membrane sample.
US08947107B2 Capacitance measurement of high voltage device
Described herein are systems and methods that facilitate the measurement of the capacitance of high voltage devices while shielding an active device involved in the measurement from the high voltage. The systems and methods employ capacitors to store the high voltage such that the active device does not experience the high voltage. Placement of a reset device ensures that the active device is shielded from the high voltage.
US08947106B2 Plug insertion detection circuits that sense a change in capacitance and related methods and communications connectors
Methods of detecting a plug insertion into a plug aperture of a communications connector are provided in which a control signal is received that is electromagnetically coupled across a plug aperture of the communications connector using a reactive coupling element. A determination may be made that a mating plug (e.g., an RJ-45 plug or a connector on a fiber optic jumper cable) has been inserted into the plug aperture based on this received control signal. Related connectors are also provided.
US08947104B2 In situ membrane monitoring
A method for in situ monitoring of a membrane of a membrane separation system comprises measuring a complex impedance of the membrane at a plurality of frequencies to provide an indication of the electrical conduction and electrical polarization properties of the membrane. The membrane based separation system for removing or reducing the concentration of materials carried in a fluid including a separation membrane has a first pair of electrodes separated by the membrane and arranged for measurement of the complex impedance of the membrane at a plurality of frequencies to provide the indication of the membrane properties. There may also be a second pair of electrodes separated by the membrane for injecting the stimulus current such that the injecting and monitoring functions are separated.
US08947098B2 Ionization gauge with emission current and bias potential control
An ionization gauge that measures pressure has an electron source that emits electrons, and an anode that defines an ionization space. The gauge also includes a collector electrode to collect ions formed by an impact between the electrons and a gas and to measure pressure based on the collected ions. The electron source is dynamically varied in emission current between a plurality of emission levels dependent on pressure and a second parameter other than pressure. The ionization gauge may also vary various operating parameters of the gauge components according to parameters stored in a non-volatile memory and selected by a user.
US08947095B2 Multi-array laterolog tools and methods
Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means. This novel arrangement of currents provides a complete set of measurements that enables one tool to simultaneously emulate a whole range of laterolog tools.
US08947092B2 Methods and systems for estimating formation resistivity and porosity
A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant.
US08947091B2 Magnetic resonance imaging apparatus and method with wireless transmission of compressed echo signals that are expanded and extracted at the receiver
According to one embodiment, an MRI apparatus includes a probe unit and a control/imaging unit. The probe unit includes a probe, a converter, a compressor and a transmitter. The control/imaging unit includes a receiver, an expander and a reconstructor. The probe detects an RF echo signal generated in a subject by a magnetic resonance phenomenon. The converter digitizes the detected signal. The compressor compresses the digitized signal in accordance with a predetermined compression parameter to obtain a compressed signal. The transmitter generates a transmission signal to wirelessly transmit the compressed echo signal and sends the transmission signal to a radio channel. The receiver receives the transmission signal and extracts the compressed signal from the received signal. The expander expands the extracted compressed signal in accordance with the parameter to obtain the RF echo signal. The reconstructor generates a video signal regarding the subject on the basis of the obtained signal.
US08947087B2 Magnetic resonance apparatus with a basic field magnet formed by at least two separated magnetic coils
A magnetic resonance apparatus for examination in THE teeth and/or jaw region of a patient has at least one basic magnet to generate a constant basic magnetic field. The basic magnet is formed at least in part from at least one magnetic coil pair with at least two magnetic coils, and the at least one magnetic coil pair generates the basic magnetic field with a homogeneous magnetic field region between the at least two magnetic coils thereof.
US08947085B2 Magnetic resonance method and apparatus to reduce artifacts in diffusion-weighted imaging
In a method and system for diffusion-weighted acquisition of MR signals with an image acquisition sequence that has multiple diffusion coding gradients and readout gradients to read out the MR signals, MR signal portions are generated with a desired signal coherence path and MR signal portions are generated with unwanted signal coherence paths, with predominantly the MR signal portions with the desired signal coherence path being acquired by the readout gradients by activating dephasing gradients that reduce the acquisition of MR signal portions with unwanted coherence paths. The dephasing gradients are determined under consideration of the diffusion gradients that are used and under consideration of the unwanted signal coherence paths, so that each has a dephasing gradient moment for each unwanted signal coherence path that is greater than a threshold.
US08947081B2 Micromachined resonant magnetic field sensors
A micromachined magnetic field sensor is disclosed. The micromachined magnetic field sensor includes a substrate; and a drive subsystem partially supported by the substrate with a plurality of beams, and at least one anchor; a mechanism for providing an electrical current through the drive subsystem along a first axis; and Lorentz force acting on the drive subsystem along a second axis in response to a magnetic field vector along a third axis. The micromachined magnetic field sensor also includes a position transducer to detect the motion of the drive subsystem and an electrostatic offset cancellation mechanism coupled to the drive subsystem.
US08947080B2 High sensitivity solid state magnetometer
A magnetometer for sensing a magnetic field may include a solid state electronic spin system, and a detector. The solid state electronic spin system may contain one or more electronic spins that are disposed within a solid state lattice, for example NV centers in diamond. The electronic spins may be configured to receive optical excitation radiation and to align with the magnetic field in response thereto. The electronic spins may be further induced to precess about the magnetic field to be sensed, in response to an external control such as an RF field, the frequency of the spin precession being linearly related to the magnetic field by the Zeeman shift of the electronic spin energy levels. The detector may be configured to detect output optical radiation from the electronic spin, so as to determine the Zeeman shift and thus the magnetic field.
US08947074B1 Inductive position sensor
An inductive position sensor uses three independent inductors inductively coupled by a common medium such as air. First and second inductors are separated by a fixed distance with the first inductor's axial core and second inductor's axial core maintained parallel to one another. A third inductor is disposed between the first and second inductors with the third inductor's axial core being maintained parallel to those of the first and second inductors. The combination of the first and second inductors are configured for relative movement with the third inductor's axial core remaining parallel to those of the first and second inductors as distance changes from the third inductor to each of the first inductor and second inductor. An oscillating current can be supplied to at least one of the three inductors, while voltage induced in at least one of the three inductors not supplied with the oscillating current is measured.
US08947070B2 Apparatus and method for testing driver writeability strength on an integrated circuit
An apparatus and method for testing driver write-ability strength on an integrated circuit includes one or more drive detection units each including a number of drivers. At least some of the drivers may have a different drive strength and each may drive a voltage onto a respective driver output line. Each drive detection unit may include a number of keeper circuits, each coupled to a separate output line and configured to retain a given voltage on the output line to which it is coupled. Each detection unit may also include a number of detection circuits coupled to detect the drive voltage on each of the output lines. In one implementation, the drive voltage appearing at the output line of each driver may be indicative of that the driver was able to overdrive the voltage being retained on the output line to which it is coupled by the respective keeper circuits.
US08947066B2 Control apparatus
According to one embodiment, a control apparatus communicable with a power measuring apparatus includes a communication unit, a threshold storage, and a controller. The communication unit acquires a usable power value from the power measuring apparatus. The threshold storage stores a threshold value. The controller changes a working state thereof in accordance with a comparison result of the usable power value and the threshold value.
US08947064B2 System and method for driving an electronic switch dependent on temperature
An electronic switch is connected in series with a load dependent on an input signal. The electronic switch is operated in a first operation mode for a first time period after a signal level of the input signal has changed from an off-level to an on-level. The first operation mode includes driving the electronic switch dependent on a voltage across the load and dependent on a temperature of the electronic switch. The electronic switch is operated in a second operation mode after the first time period. The second operation mode includes driving the electronic switch dependent on the temperature according to a hysteresis curve.
US08947058B2 Switching power supply device, AC power supply device, and image forming apparatus
A switching power supply device includes a switching power supply integrated circuit that includes a dead time generating unit that generates high-side and low-side drive signals having a dead time based on a PWM signal, a drive signal generating unit that generates first and second PWM signals based on the drive signals and a voltage of an output terminal, and a driver that includes high-side and low-side switch elements driven by the PWM signals; a filter that is connected to the output terminal; a first diode having a cathode connected to the source of the high-side switch element and an anode connected to the output terminal; and a second diode having a cathode connected to the source of the low-side switch element and an anode connected to the output terminal. The first and second diodes are arranged outside the switching power supply integrated circuit.
US08947054B2 Battery charger and method utilizing alternating DC charging current
A battery charger is disclosed for use with various batteries, such as automotive and marine-type batteries. In accordance with an aspect of the invention, the charging current is alternated between non-zero DC charging current levels. By alternating the charging current between non-zero DC charging levels, the battery can be charged to a higher capacity (i.e., ampere hours) faster, thus reducing the charging time and at the same time allow the rating of the battery charger to be increased. In accordance with another important aspect of the invention, the technique for alternating the charging current can be implemented in both linear and switched-mode battery chargers.
US08947052B2 Charge-discharge control circuit, semiconductor integrated circuit, method of controlling charging and discharging
A charge-discharge control circuit includes a cell balance detection circuit that detects that a voltage of a cell reaches a predetermined voltage; a memory circuit that stores the cell that reaches the predetermined voltage first among plural of the cells; bypass circuits respectively connected to the plural cells in parallel, each of the bypass circuits including a switch unit for bypassing the current that flows through the corresponding cell when charging; and a control circuit that controls the switch units, wherein the control circuit controls the switch unit based on the cell stored in the memory circuit so that an ON/OFF status of the switch unit is maintained from a start to an end of a next charging operation subsequent to a charging operation during which the cell is stored in the memory circuit.
US08947049B2 Battery heating circuits and methods using voltage inversion and freewheeling circuit components
Certain embodiments of the present invention provide a battery heating circuit, comprising a switch unit 1, a switching control module 100, a damping component R1, an energy storage circuit, a freewheeling circuit 20, and an energy superposition unit; the energy storage circuit is configured to connect with the battery to form a loop, and comprises a current storage component L1 and a charge storage component C1; the damping component R1, the switch unit 1, the current storage component L1, and the charge storage component C1 are connected in series; the switching control module 100 is connected with the switch unit 1, and is configured to control ON/OFF of the switch unit 1, so as to control the energy flowing between the battery and the energy storage circuit; the energy superposition unit is connected with the energy storage circuit.
US08947047B2 Efficiency and flexibility in inductive charging
A system and method for improved efficiency and flexibility in inductive charging. In accordance with an embodiment, the system comprises a base unit having one or more primary coils, wherein each primary coil is configured so that when a current is passed through it, a magnetic field is generated in a direction substantially perpendicular to the plane of the primary coil; one or more secondary coils or receivers associated with one or more mobile device; and one or more components within the base unit and/or the mobile device, for improving efficiency and/or flexibility in inductive charging. When the one or more mobile device is placed in proximity to the base unit, the perpendicular magnetic field is used to inductively generate a current in the one or more secondary coils or receivers associated therewith, to charge or power the device.
US08947045B2 Method for controlling power transmission in wireless power transmission apparatus and wireless power transmission apparatus thereof
A method for controlling a power transmission in a wireless power transmission apparatus, and a power transmission apparatus thereof. The method includes detecting via an object detecting sensor whether a foreign object is placed on a charging position of the wireless power transmission apparatus during a wireless charging; calculating a power loss of the wireless charging by a controller of the wireless power transmission apparatus if the foreign object is detected by the object detecting sensor; and stopping the wireless charging if the power loss is over a reference value.
US08947041B2 Bidirectional wireless power transmission
Exemplary embodiments are directed to wireless power transfer. A wireless power transceiver and device comprise an antenna including a parallel resonator configured to resonate in response to a substantially unmodulated carrier frequency. The wireless power transceiver further comprises a bidirectional power conversion circuit coupled to the parallel resonator. The bidirectional power conversion circuit is reconfigurable to rectify an induced current received at the antenna into DC power and to induce resonance at the antenna in response to DC power.
US08947038B2 Power supply apparatus of home appliance
A power supply apparatus of a home appliance which meets standby power regulation of 0.5 watts using one SMPS. As compared with a general circuit which meets the standby power regulation using two or more SMPSs, it may be possible to curtail expenses required for addition of a separate standby only SMPS and miniaturize a PCB, resulting in a reduction in cost. Further, in a washing machine employing a motor, a circuit is provided to bypass a back EMF generated in the motor even if AC power is not supplied to the washing machine due to occurrence of a power failure or unplugging of the washing machine. Therefore, it may be possible to prevent a PCBA from being damaged due to the back EMF.
US08947036B2 Parallel drive system
To provide a parallel drive system that can reduce vibrations of an arm member and can realize positioning at a high speed even when a slave servomotor does not have a position detector, at a low cost. To achieve this object, a parallel drive system of the invention includes: a master servomotor and a slave servomotor that include linearly-moving movable units that are arranged in parallel to each other, respectively; and an arm member that forms a bridge between the two movable units. The system includes: a position detector detecting position information on the movable unit of the master servomotor; an acceleration sensor detecting acceleration information on the movable unit of the slave servomotor; a master servo amplifier controlling the master servomotor based on the position information; and a slave servo amplifier controlling the slave servomotor based on the position information and the acceleration information.
US08947033B2 Delay circuit, fan assembly, and electronic device using the delay circuit
A delay circuit for a fan includes a signal generation circuit, a first switch, a delay microchip, and a second switch. The signal generation circuit receives a driving signal and generates a control signal according to the driving signal. The first switch is electronically connected to the signal generation circuit to receive the control signal. The second switch is electronically connected between the delay microchip and the fan. When the signal generation circuit is electronically connected to the fan via the first switch, the control signal is transmitted to the fan to activate the fan. When the signal generation circuit is electronically connected to the delay microchip, the delay microchip receives the control signal and outputs a delayed control signal after a predetermined delay time, and the delayed control signal is transmitted to the fan via the second switch to activate the fan.
US08947031B1 Systems and method for speed and torque control of a DC motor
A method for operating a direct current (DC) motor is shown and described. The method includes using pulse width modulated (PWM) DC output to control the speed of the DC motor. The method further includes sensing current output to the motor. When the sensed current exceeds a threshold, the method holds the PWM DC output off.
US08947030B2 Low switch count AC-to-AC power converter
A load control device to control current flow to an AC load includes a circuit having line-side switches and floating-neutral side switches, along with a controller connected to the circuit that is programmed to control the circuit so as to cause each of the line-side switches and each of the floating-neutral side switches to switch between an On condition or an Off condition to selectively operate the circuit in an active mode and a free-wheeling mode. A full phase voltage is provided to the AC load during the active mode and a zero voltage is provided to the AC load during the free-wheeling mode. The controller applies a modulating function to the circuit, so as to modulate a supply voltage to control a frequency and an average of a load voltage present across terminals of the AC load, thereby enabling variable frequency operation of the AC load.