43rd week of 2012 patent applcation highlights part 30 |
Patent application number | Title | Published |
20120269244 | Amplitude Control In A Variable Load Environment - Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for varying symbol amplitude. In one aspect, a system includes a symbol generator that includes a waveform generator configured to output waveforms at a plurality of selectable fundamental frequencies and with a selectable duty cycle. The symbol generator can also include a bandpass filter having a pass-band that corresponds to a communications channel of a communications network. The system can also include data processing apparatus operable to interact with the symbol generator and further operable to determine that at least a threshold number of endpoints that receive symbols from the symbol generator are experiencing a same type of transmission error. In response to the determination, the data processing apparatus can cause the waveform generator to adjust at least one of the fundamental frequency or a duty cycle of the waveforms. The fundamental frequency can be adjusted to a frequency having a harmonic that is within the pass-band. | 2012-10-25 |
20120269245 | MIRROR SIGNAL IQ-IMBALANCE CORRECTION - A system and method are provided for calibrating the IQ-imbalance in a low-IF receiver. A Test Signal can be generated in a mirror frequency and conveyed to the receiver. The power of the signal produced in the receiver from the conveyed Test Signal can be measured. In the absence of an IQ-imbalance, the Test Signal can be completely eliminated in the receiver and the corresponding measured power of the produced signal can be minimized. Accordingly, a two dimensional algorithm is described for calibrating a receiver and correcting the IQ-imbalance by adjusting the phase and gain difference between the I and Q channels in the receiver based on the measured power of the signal produced in the receiver. | 2012-10-25 |
20120269246 | COGNITIVE RADIO SPECTRUM SENSOR EMPLOYING PEAK-TO-AVERAGE RATIO AS THE SIGNAL FEATURE - A white space sensing method includes measuring a peak to average power ratio (PAPR) of a signal of a channel in a spectrum band. The method also includes determining whether a ratio of the measured PAPR to a predetermined PAPR of a modulation scheme associated with the signal meets a predetermined threshold. The method further includes indicating the channel is available for use by an unlicensed user when the ratio meets the predetermined threshold. | 2012-10-25 |
20120269247 | MULTI-STAGE PHASE ESTIMATION METHOD AND APPARATUS - The embodiments provide a multi-stage phase estimation method and apparatus. The apparatus i a multi-stage phase estimation configuration. Each stage of the phase estimation configuration includes metric computation modules. Each of the metric computation modules computing a distance metric and search phase angles according to an input signal and an initial search phase angle or a search phase angle of the former stage phase estimation configuration. The number of the metric computation modules is equal to that of the search phase angles of this stage. A selection module selects the search phase angle corresponding to the minimal distance metric as the phase estimation result output of this stage according to the computation results of all metric computation modules. The average time window length of the former stage phase estimation configuration is larger than that of the subsequent stage phase estimation configuration. | 2012-10-25 |
20120269248 | METHOD AND APPARATUS OF DETECTING SIGNAL BASED ON MINIMUM MEAN SQUARE ERROR IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity. | 2012-10-25 |
20120269249 | COMMUNICATION SYSTEM, COMMUNICATION METHOD FOR THE SAME AND MOBILE STATION AND BASE STATION USED FOR THE SAME - A mobile station selecting one of a plurality of bands, obtaining two restored value candidates for respective adjacent bands in higher and lower directions by increasing or decreasing a predetermined step size by using the selected value as a reference, and generating relative value information on a restored value indicating which restored value candidate increased or decreased by the step size is the restored value candidate closer to the measured value as a bitmap. The mobile station transmits the communication channel quality information of the one band and the bitmap. The mobile station measures a communication channel quality of each of the plurality of bands obtained by dividing a communication band of a downlink. | 2012-10-25 |
20120269250 | PEER DISCOVERY IN A WIRELESS WIDE AREA NETWORK SYSTEM - A method of wireless communication of a wireless device includes receiving a signal indicating WWAN resources that can be utilized for communicating peer discovery signals. In addition, the method includes communicating an OFDM peer discovery signal in the WWAN resources. A method of wireless communication of a base station includes transmitting a signal to a wireless device indicating WWAN resources dedicated for a silence interval that can be utilized for communicating peer discovery signals. The WWAN resources dedicated for a silence interval include a first subset of resources and a second subset of resources. The method further includes measuring noise in the first subset of resources and refraining from measuring noise in the second subset of resources. | 2012-10-25 |
20120269251 | METHOD AND APPARATUS FOR ESTIMATING SIGNAL TO NOISE RATIO IN WIRELESS COMMUNICATION SYSTEM - There is provided a method and apparatus for estimating a signal to noise ratio (SNR) in a wireless communication system. The apparatus selects a preamble signal for each of a plurality of sectors from a reception signal experienced by fast Fourier transform (FFT), outputs a correlation signal by performing a correlation between the preamble signal for each sector and a preamble reference signal, estimates power of the reception signal and noise power for each sector based on the correlation signal, selects a minimum value from among the noise powers for the sectors, outputs a net power for each sector by subtracting the minimum value from the power of the reception signal for each sector, and calculates the SNR by dividing the net power for each sector by the minimum value. | 2012-10-25 |
20120269252 | Minimal Reconfiguration Spectrum Stitching with Overlapped Bands - Embodiments of this invention include a test and measurement instrument and associated methods for acquiring and stitching wide overlapped non-uniform frequency bands so that a user specified band can be efficiently displayed and analyzed. The test and measurement instrument includes a user interface to receive the user specified frequency span. Acquisition circuitry acquires one or more predefined frequency bands having non-uniform overlapping frequency ranges. A frequency band processing section can decimate the acquired frequency bands, mask the acquired frequency bands, and stitch the masked frequency bands together. A display section displays the user specified frequency span using the stitched frequency bands. Due to the overlap configuration of the wide non-uniform bands, any user specified span between 50 kHz and 6 GHz, or thereabout, can be covered by two bands. | 2012-10-25 |
20120269253 | METHOD FOR PROCESSING SIGNALS - A method for processing signals transmitted via a connection and received by a digital interface, where individual data frames are transmitted by the signals as a sequence of modulated symbols, and where the received signals are corrected by an equalizer; the equalizer sampling the received signals, and an adaptation of the equalizer only taking place in particular time intervals in a manner controlled by a protocol. | 2012-10-25 |
20120269254 | CHANNEL ARCHITECTURE WITH MULTIPLE SIGNAL PROCESSING BRANCHES FOR A GIVEN PHYSICAL CHANNEL - A communication system includes a physical communication channel. A signal is transmitted across the communication channel from a transmit end of the channel to a receive end of the channel. A plurality of processing branches process the signal at the receive end of the communication channel. This reduces complexity of the receive channel, without reducing a bandwidth of the given communication channel, and without comprising performance. | 2012-10-25 |
20120269255 | Parallel Closed-Loop DFE Filter Architecture - A DFE filter includes an input, a first filter loop coupled to the input for providing an odd bit-stream, and a second filter loop coupled to the input for providing an even bit-stream, wherein the first and second filter loops are identical and interleaved. | 2012-10-25 |
20120269256 | APPARATUS AND METHOD FOR PRODUCING/REGENERATING CONTENTS INCLUDING MPEG-2 TRANSPORT STREAMS USING SCREEN DESCRIPTION - Provided are a content writing apparatus and a content playback apparatus. The content writing apparatus may regard, as a single media file, a plurality of Moving Picture Experts Group (MPEG)-2 Transport Streams (TSs), may form a scene in a scene descriptor, such as a BInary Format for Scene (BIFS) or a Lightweight Application Scene Representation (LASeR), and may record the formed scene and the plurality of MPEG-2 TSs, as a media file in an International Standards Organization (ISO) format. The content playback apparatus may extract a scene from the media file in the ISO format, and may play back the extracted scene. | 2012-10-25 |
20120269257 | ENCODING AND DECODING MULTI-VIEW VIDEO WHILE ACCOMMODATING ABSENT OR UNRELIABLE CAMERA PARAMETERS - A method of encoding multi-view video using camera parameters and a method of decoding multi-view video using the camera parameters are provided. The method of encoding multi-view video using the camera parameters includes detecting the camera parameters from each of a plurality of video data input from a multi-view camera in predetermined video units, and adaptively encoding each of the plurality of the video data according to whether each video data has the camera parameters. Accordingly, it is possible to increase the efficiency of compressing video without degrading video quality. | 2012-10-25 |
20120269258 | RATE CONTROL WITH LOOK-AHEAD FOR VIDEO TRANSCODING - Systems and methods of transcoding video bitstreams that employ look-ahead approaches to enhance the overall perceptual quality of transcoded video information, communications, and entertainment delivered to an end user. The disclosed systems and methods of transcoding video bitstreams take into account the scene characteristics and the local coding complexity of video frames in a video sequence before performing bit allocations for the video frames, thereby significantly improving the perceptual quality of transcoded video delivered to the end user. | 2012-10-25 |
20120269259 | System and Method for Encoding VBR MPEG Transport Streams in a Bounded Constant Bit Rate IP Network - Various embodiments of methods and systems for buffering a video stream to smooth out the variable bit rate in an MPEG 2 transport stream to a capped bit rate, while not causing packet loss on the network, and allowing the streams to pass through a bit rate constrained IP network are disclosed. One method includes conditioning a variable bit rate video content stream such that the frames are packed back to back into a constant bit rate stream such that filler packets are not required to approximate a constant bit rate. The packed video content stream, having a constant bit rate due to portions of the frames being packed into a given transmission segment, may be transmitted across a channel in a constant bit rate network. | 2012-10-25 |
20120269260 | METHOD FOR CODING A SEQUENCE OF IMAGES - The invention relates to a method for coding a sequence of images divided into blocks, comprising the following steps for a current block:—selecting, for the current block, a coding mode in a set of coding modes that comprises at least two coding modes, and a transform in a set of transforms that comprises at least a first transform and a second transform; and—coding the current block according to the coding mode and the transform selected. The coding mode and the transform, themselves, are selected according to the following steps:—selecting the coding mode in the set of coding modes while using the first transform, and—selecting the transform in the set of transforms while using the coding mode selected. | 2012-10-25 |
20120269261 | METHODS AND APPARATUSES FOR ENCODING AND DECODING IMAGE USING ADAPTIVE FILTERING - Provided are methods and apparatuses for encoding and decoding an image by using adaptive filtering. The method of encoding an image by using adaptive filtering includes: determining a filter to be applied to a reference frame used for prediction encoding of a current block to be encoded, by adaptively changing a size and filter coefficients of the filter; filtering the reference frame by using the determined filter; prediction encoding the current block by using the filtered reference frame; and outputting data of the prediction encoded current block and information about the filter. | 2012-10-25 |
20120269262 | HIGH FREQUENCY EMPHASIS IN CODING SIGNALS - A decoder adapted to generate an intermediate decoded version of a video frame from an encoded version of the video frame, determine either an amount of high frequency basis functions or coefficients below a quantization threshold for at least one block of the video frame, and generate a final decoded version of the video frame based at least in part on the intermediate decoded version of the video frame and the determined amount(s) for the one or more blocks of the video frame, is disclosed. In various embodiments, the decoder may be incorporated as a part of a video system. | 2012-10-25 |
20120269263 | METHOD FOR CODING AND METHOD FOR RECONSTRUCTION OF A BLOCK OF AN IMAGE - A method for coding a current block of an image is disclosed that comprises:
| 2012-10-25 |
20120269264 | IMAGE PROCESSING DEVICE AND METHOD - An image processing device and method capable of improving image quality of a decoded image and of an image to be referenced from now on with motion compensation. A mosquito noise filter is provided within a motion compensation loop including at least a computing unit, an orthogonal transform unit, a quantization unit, an inverse quantization unit, an inverse orthogonal transform unit, a computing unit, a frame memory, a switch, a motion prediction/compensation unit, and a prediction image selecting unit. The mosquito noise filter uses information from the orthogonal transform unit, quantization unit, and a lossless encoding unit to determine whether to perform filter processing for removing mosquito noise. The device and method may be applied to an image encoding device for performing encoding with H.264/AVC format, for example. | 2012-10-25 |
20120269265 | METHOD AND ARRANGEMENT FOR VIDEO CODING - A method for encoding at least one video stream (IV | 2012-10-25 |
20120269266 | REGIONS OF INTEREST FOR QUALITY ADJUSTMENTS - Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information). | 2012-10-25 |
20120269267 | METHOD AND APPARATUS FOR UNIFIED SCALABLE VIDEO ENCODING FOR MULTI-VIEW VIDEO AND METHOD AND APPARATUS FOR UNIFIED SCALABLE VIDEO DECODING FOR MULTI-VIEW VIDEO - Methods for scalable video encoding and decoding for a multi-view video and apparatuses for scalable video encoding and decoding which implement the methods are provided. At least one root image and other remaining images of an image sequence of a video are classified into a plurality of layers. At least one reference image relating to a current image of the image sequence is generated by using a parent image of the current image based on a reference image conversion technique for scalable prediction encoding. Prediction encoding may be performed with respect to the current image by using the at least one reference image. | 2012-10-25 |
20120269268 | MOTION VECTOR ENCODING/DECODING METHOD AND DEVICE AND IMAGE ENCODING/DECODING METHOD AND DEVICE USING SAME - The present disclosure relates to a method and apparatus for encoding/decoding a motion vector and a method and apparatus for encoding/decoding video using same. The motion vector encoding method includes selecting a predicted motion vector candidate set including one or more predicted motion vector candidates for a block; determining one or more search ranges for predicted motion vector candidate set; selecting one predicted motion vector candidate among one or more predicted motion vector candidates as predicted motion vector for each search point with respect to each search point within search range by first determination criterion prearranged with video decoding apparatus; selecting one predicted motion vector among the predicted motion vectors for each search point by a second determination criterion not prearranged with the video decoding apparatus, and determining predicted motion vector, differential motion vector, and current motion vector; and generating and encoding the differential motion vector as motion information. | 2012-10-25 |
20120269269 | METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR OF MULTI-VIEW VIDEO - Provided are methods and apparatuses for encoding and decoding a motion vector in a multi-view view image sequence. A method of encoding includes: determining a view direction motion vector of a current block by performing motion prediction on the current block with reference to a first frame having a second view that is different from a first view of the current block; determining view direction motion vector predictor candidates using a view direction motion vector of an adjacent block that refers to a reference frame having a different view from the first view, and a view direction motion vector of a corresponding region included in a second reference frame having the first view and a different picture order count than the current frame; and encoding a difference value between the view direction motion vector of the current block and a selected view direction motion vector predictor, and mode information. | 2012-10-25 |
20120269270 | MOTION VECTOR PREDICTION IN VIDEO CODING - Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector. | 2012-10-25 |
20120269271 | MOTION VECTOR PREDICTION IN VIDEO CODING - Aspects of this disclosure relate to a method of coding video data. In an example, the method includes identifying a first block of video data in a first temporal location from a first view, wherein the first block of video data is associated with a first temporal motion vector. The method also includes determining, when a second motion vector associated with a second block of video data comprises a temporal motion vector and the second block is from a second view, a motion vector predictor for the second motion vector based on the first temporal motion vector. The method also includes coding prediction data for the second block using the motion vector predictor. | 2012-10-25 |
20120269272 | METHOD AND DEVICE FOR PROCESSING A VIDEO SEQUENCE - An embodiment of the invention relates to a method for processing the pixel amplitude of at least one block image pixel contained in a video sequence, said method comprising the steps of: —constructing an individual motion trajectory comprising motion-shifted versions of said block image pixel over a multiplicity of neighboring frames; and—combining the pixel amplitudes of the motion-shifted versions of said block image pixel along the individual motion trajectory using a weighting function, to form a processed pixel amplitude of said image pixel. | 2012-10-25 |
20120269273 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND PROGRAM - An image processing device is provided that includes an image acquisition unit that obtains video data that includes a plurality of consecutive frames, and also obtains image data that correspond to some of the frames and have a higher spatial resolution than the frames. The image processing device also includes a super resolution processing unit that uses a plurality of the frames to perform super resolution processing on the frames, and that generates super resolution images that correspond to the frames. The image processing device further includes a motion estimation unit that uses the video data to detect a motion vector between the super resolution images and an image generation unit that, based on the super resolution images corresponding to the image data and on the motion vector, generates motion compensated image data that corresponds to the frames. | 2012-10-25 |
20120269274 | METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO USING SPLIT LAYER - The present invention relates to a method and an apparatus for encoding/decoding a video using a split layer. The video encoding/decoding method generates an encoded image data by encoding a current block partitioned into a plurality of subblocks, generates an encoded partition information data by encoding partition information of the current block, generates a bitstream including the encoded image data and the encoded partition information data, and then reconstructs the video image from the generated bitstream. According to the present disclosure, when encoding a high resolution video with variable sized blocks, various block shapes may be used for the encoding, and efficient encoding and decoding of the block partition information can improve the compression efficiency. | 2012-10-25 |
20120269275 | Method and device for video coding and decoding - There is disclosed a method for encoding at least two views of a video scene into a multiview video bitstream, where said views have different spatial resolutions. The method comprises prediction between pictures belonging to different views after resampling of one of these pictures. There is also disclosed a method for decoding a multiview video bitstream comprising at least two views having different spatial resolutions. The method comprises prediction between pictures belonging to different views after resampling of one of these pictures. There are also disclosed corresponding apparatuses and computer program products. | 2012-10-25 |
20120269276 | NAL UNIT HEADER - Disclosed are techniques for scalable, multiview, and multiple descriptive video coding using an improved Network Adaptation Layer (NAL) unit header. A NAL unit header can include a layer-id that can be a reference into a table of layer descriptions, which specify the properties of the layer. The improved NAL unit header can further include fields for reference picture management and to identify temporal layers. | 2012-10-25 |
20120269277 | RELIABLE DIVERSITY ARCHITECTURE FOR A MOBILE DTV SYSTEM - A digital data stream comprises alternating groups of information blocks and groups of parity blocks, each group of information blocks includes multiple information blocks and each group of parity blocks includes multiple parity blocks. An apparatus for receiving a digital data stream comprises a demodulator that receives and demodulates a digital data stream. An equalizer compensates for distortions in the digital data stream. A delay buffer generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing a delayed version of the compensated digital data stream. A forward error correction block receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data. A transport block receives and processes the error corrected stream from the forward error correction block for display | 2012-10-25 |
20120269278 | DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT ENHANCEMENTS FOR SINGLE-CELL WITH REMOTE RADIO HEADS - A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment. | 2012-10-25 |
20120269279 | Method of Precoding with a Codebook for a Wireless System - A quantized multi-rank beamforming scheme for multiple-antenna systems such as a multiple-input-multiple-output (MIMO) wireless downlink. User equipment (UE) estimates downlink channel and transmit power and determines rank and power allocations. A quantized beamforming matrix is then determined by the UE using successive beamforming. The UE also determines channel quality indices (CQI) which it feeds-back to the wireless downlink base station along with the index of the quantized beamforming matrix. The base station uses the CQI information to select a UE for scheduling of downlink transmission and the quantized beamforming matrix index received from the selected UE to beamform the downlink transmission to the UE. Base station overhead and is minimized while providing near-optimal performance given the constraints of a limited feed-back channel and computational complexity of the UE. | 2012-10-25 |
20120269280 | RECURSIVE REDUCTION OF CHANNEL STATE FEEDBACK - Feedback bandwidth may be reduced in a closed loop MIMO system by Householder transformations and vector quantization using codebooks. | 2012-10-25 |
20120269281 | METHOD AND SYSTEM FOR UTILIZING TONE GROUPING WITH GIVENS ROTATIONS TO REDUCE OVERHEAD ASSOCIATED WITH EXPLICIT FEEDBACK INFORMATION - Aspects of a method and system for utilizing tone grouping with Givens rotations to reduce overhead associated with explicit feedback information are presented. In one aspect of the invention, Givens matrices may be utilized to reduce a quantity of information communicated in explicit feedback information via an uplink RF channel. The explicit feedback information may include specifications for a feedback beamforming matrix that may be utilized when transmitting signals via a corresponding downlink RF channel. The feedback beamforming matrix may represent a rotated version of an un-rotated matrix. The Givens matrices may be utilized to apply one or more Givens rotations to un-rotated matrix. The rotated matrix may reduce the quantity of information communicated in the explicit feedback information. The quantity of information communicated in the explicit feedback information may be further reduced by utilizing tone grouping. | 2012-10-25 |
20120269282 | ENCODING AND DECODING METHODS AND APPARATUS FOR USE IN A WIRELESS COMMUNICATION SYSTEM - The claimed subject matter relates to encoding and decoding information in a wireless communication system using soft-demodulation and interleaving of concatenated code received in a strip channel. A set of symbols is received containing a plurality of information bits, dividing the received set of symbols into a plurality of subsets of symbols, each subset corresponding to the input of an inner code demodulation selecting a set of initial a priori values of the inner code demodulation for each subset of symbols, and demodulating each subset of symbols, using the initial a priori values of the subset of symbols and an inner code generator matrix, to generate a plurality of first soft information values as the output of the inner code demodulation. | 2012-10-25 |
20120269283 | SIGNALING OF DEDICATED REFERENCE SIGNAL (DRS) PRECODING GRANULARITY - A method for communication includes receiving in a receiver signals, which include one or more dedicated reference signals and are transmitted from a transmitter over a communication channel in multiple blocks. The signals in each block, including the dedicated reference signals, are transmitted on a respective group of subcarriers over a respective time interval and are precoded using a respective precoding scheme that maps the signals onto multiple antenna ports of the transmitter. One or more parameters of the communication channel are estimated over the dedicated reference signals included in two or more of the blocks whose respective precoding schemes do not differ from one another. The signals are decoded based on the estimated parameters. | 2012-10-25 |
20120269284 | Method of Handling Antipodal Parauitary Precoding for MIMO OFDM and Related Communication Device - A method of transmitting a plurality of data symbols for a transmitter in a wireless communication system is disclosed. The method comprises encoding the plurality of data symbols into a plurality of precoded symbols according to an antipodal paraunitary (APU) precoding; processing the plurality of precoded symbols by using multi-input multi-output (MIMO) and orthogonal frequency-division multiplexing (OFDM), for generating a plurality of transmission symbols; and transmitting the plurality of transmission symbols via a plurality of transmit antennas according to operations of the MIMO and the OFDM. | 2012-10-25 |
20120269285 | METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME - Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved. | 2012-10-25 |
20120269286 | OUT-OF-BAND EMISSION CANCELLATION - A transmission signal pre-processing method and apparatus for out-of-band emission cancellation are disclosed. For each of N subchannels in a band weighting each of N subchannel symbols by a calculated value in the range from 0 to 1 is performed. Precoding said N weighted symbols, organised as an N×1 matrix, by multiplication by a unitary matrix is then performed. | 2012-10-25 |
20120269287 | APPARATUS FOR DIMENSIONING THE CONTROL CHANNEL FOR TRANSMISSION EFFICIENCY IN COMMUNICATIONS SYSTEMS - Embodiments of the invention provide methods for optimizing the spectral efficiency of control channel transmissions carrying scheduling assignments from a serving Node B to user equipments. This is accomplished by adjusting the control channel size between successive transmission time intervals according to the number of user equipments having scheduling assignments and possibly according to the modulation and coding scheme used for the transmission of each scheduling assignments. | 2012-10-25 |
20120269288 | SYSTEM AND METHOD FOR SIMULTANEOUS MIMO SIGNAL TESTING WITH SINGLE VECTOR SIGNAL ANALYZER - Signal conversion circuitry and method for converting a multiple input, multiple output (MIMO) packet data signal transmission to a plurality of complex data samples for processing by shared test equipment, e.g., a single vector signal analyzer (VSA). | 2012-10-25 |
20120269289 | METHODS AND APPARATUSES FOR DATA TRANSMISSION - Methods and devices are disclosed involving crosstalk reduction depending on weighting factors or grouping of transmission channels. In other embodiments, other methods or devices may be used. | 2012-10-25 |
20120269290 | SIX TRANSMIT ANTENNA CODEBOOK DESIGN - A method of wireless data transmission includes a base station having six antennas and at least one user equipment. The base station forms at least one layer of data stream including modulated symbols, precodes the at least one layer of data stream via multiplication with consecutive first and second precoding matrices and transmit the precoded data stream to the at least one user equipment via the six antennas. The first precoding matrix W | 2012-10-25 |
20120269291 | RF TRANSMITTER, INTEGRATED CIRCUIT DEVICE, WIRELESS COMMUNICATION UNIT AND METHOD THEREFOR - A radio frequency (RF) transmitter has at least one digital signal processing module and at least one power amplifier module. The digital signal processing module includes at least one digital pre-distortion component arranged to receive at least one complex input signal, perform two-dimensional non-uniform mapping of the complex input signal to a first, in-phase, digital pre-distortion control word and a further, quadrature, digital pre-distortion control word, and output the in-phase and quadrature pre-distortion digital control words. The power amplifier module includes a first, in-phase, array of switch-mode power cells and at least one further, quadrature, array of switch-mode power cells. The two-dimensional non-uniform mapping has a pre-distortion profile at least partly based on an input/output relationship for the power amplifier module arranged to generate an analogue RF signal based at least partly on the in-phase and quadrature digital pre-distortion control words. | 2012-10-25 |
20120269292 | RF TRANSMITTER, INTEGRATED CIRCUIT DEVICE, WIRELESS COMMUNICATION UNIT AND METHOD THEREFOR - A radio frequency (RF) transmitter including at least one digital signal processing module is described. The at least one digital signal processing module is arranged to receive a complex digital input signal, successively apply pre-distortion to the received complex digital input signal with a progressively finer granularity, simultaneously progressively increase a sampling rate of the received complex digital input signal, and output a first, in-phase digital control word and a second, quadrature, digital control word for controlling at least one digital power amplifier component to generate an RF signal representative of the received complex digital input signal. | 2012-10-25 |
20120269293 | RF TRANSMITTER ARCHITECTURE, INTEGRATED CIRCUIT DEVICE, WIRELESS COMMUNICATION UNIT AND METHOD THEREFOR - A radio frequency (RF) transmitter architecture includes at least one digital signal processing module. The at least one digital signal processing module is configurable to operate in at least a first mode wherein the at least one digital signal processing module is arranged to receive a digital input signal, select, from a reduced set of digital power amplifier (DPA) control values, a plurality of DPA control values based at least partly on the received digital input signal, perform interpolation of the plurality of selected DPA control values to determine a DPA control value from a non-reduced set of DPA control values representative of the received digital input signal, and output to at least one DPA component the determined DPA control value representative of the received digital input signal. | 2012-10-25 |
20120269294 | Modulation code set (MCS) and LDPC (Low Density Parity Check) coding within multiple user, multiple access, and/or MIMO wireless communications - Modulation code set (MCS) and LDPC (Low Density Parity Check) coding within multiple user, multiple access, and/or MIMO wireless communications. Selective operation in accordance with different operational modes is performed. Operation within a first mode may correspond to that which is in full compliance with a given protocol, standard, and/or recommended practice, while operation within a second mode may correspond to that which provides additional/augmented capability and/or functionality with respect to that protocol, standard, and/or recommended practice. Operational modes selectivity may be made between proprietary and non-proprietary modes of operation. All available modulation coding sets (MCSs) may be in employed by providing such multi-mode operation. When operating within one of the operational modes (e.g., proprietary), a signal is generated to include an integer number of data bits per orthogonal frequency division multiplexing (OFDM) symbol using any desired operation (e.g., floor, ceiling, rounding, etc.). | 2012-10-25 |
20120269295 | METHOD FOR TRANSMITTING CONTROL INFORMATION IN MULTIPLE ANTENNA SYSTEM - A method of transmitting control information includes dividing frequency bandwidth into ranges to which the same PMI (precoding matrix index) is applied, obtaining multiple antenna information by the range to which the same PMI is applied and transmitting the multiple antenna information. Since multiple antenna information is transmitted by the unit of a range to which the same PMI is applied, radio resources allocated for transmitting the multiple antenna information may be reduced, thereby enhancing data transmission efficiency. | 2012-10-25 |
20120269296 | MULTI-STAGE RECEIVER - A multi-stage receiver comprises an input stage, an intermediate stage, and an output stage. The input stage is configured to provide a first signal and a second signal. The intermediate stage is coupled to the input stage and comprises a first amplifying circuit and a second amplifying circuit. Positive and negative input terminals of the first amplifying circuit receive the first signal and the second signal, respectively. Positive and negative input terminals of the second amplifying circuit receive the second signal and the first signal, respectively. The output stage is coupled to the intermediate stage and configured to generate low-skewed differential signals according to output signals of the intermediate stage. | 2012-10-25 |
20120269297 | CARRIER FREQUENCY OFFSET ESTIMATION SCHEME, FOR DIGITAL STANDARDS WITH MPSK MODULATED PREAMBLE - A receiver for reducing acquisition time of a Carrier Frequency Offset (CFO) of an input intermediate frequency (IF) signal with M-PSK modulated preamble using spectral based analysis is provided. The receiver includes an analog to digital converter that converts the input IF signal into a digital signal, a down conversion unit that down converts the digital signal to a baseband complex signal, and a CFO estimation block that estimates the CFO. The CFO estimation block includes a carrier harmonic generation unit that generates an output of carrier M | 2012-10-25 |
20120269298 | PHASE ERROR COMPENSATION ARRANGEMENT AND PHASE ERROR COMPENSATION METHOD - A phase error compensation arrangement comprising a first phase error compensator and a second phase error compensator arranged downstream of the first phase error compensator. The first phase error compensator is configured to obtain a first estimated phase error ((φ | 2012-10-25 |
20120269299 | Precoded Data Receiver - Methods and apparatus are disclosed for applying successive multi-rank beamforming strategies (e.g., successive precoding strategies) for the design of precoders over a set of parallel channels. Successive beamforming is applied to a narrow band channel model and is also applied for finer quantization of a single beamforming vector (e.g., recursive beamforming). A first embodiment provides the optimal approach with high complexity. An alternative embodiment provides successive beamforming for near optimal precoding selection with medium complexity. A low complexity method for precoder selection is also provided wherein a channel representative matrix for the set of parallel channels is determined and successive beamforming on the calculated channel representative is applied. | 2012-10-25 |
20120269300 | DIGITAL DOWNCONVERSION AND FAST CHANNEL SELECTION OF NARROWBAND SIGNALS USING A WIDE BAND RF TUNER - A wide band receiver to select and demodulate an input signal with single scan spectrum sensing by performing filtering on the input signal in digital domain to achieve improved selectivity and sensitivity is provided. The input signal includes one or more narrowband radio frequency (RF) signals. The wide band receiver includes a wide band tuner that down converts the one or more narrowband RF signals to one or more IF signals. An analog to digital converter (ADC) converts the one or more IF signals to one or more digital signals. A filter rejects out-of-band signals from the one or more digital signals to achieve the improved selectivity. A numeric controlled oscillator (NCO) selects at least one narrowband digital signal from the digital signals based on a phase value obtained from a spectrum selection control unit. A demodulator demodulates the narrowband digital signal to obtain a demodulated digital signal. | 2012-10-25 |
20120269301 | MIMO DETECTOR - A MIMO detector for use in MIMO-OFDM wireless communication that forms a plurality of propagation paths by using a plurality of transmitting and receiving antennas includes: an inverse matrix calculator operating as an inverse matrix calculation unit configured to calculate an inverse matrix of a matrix of the propagation path based on a signal received by a receiver; a detection speed controller operating as an estimation unit configured to estimate a variation in the propagation path over time; and a phase synchronization circuit and a regulator configured to variably control a processing time required to calculate the inverse matrix by the inverse matrix calculator, according to the variation in the propagation path over time estimated by the detection speed controller. The MIMO detector is provided on the side of the receiver of the wireless communication. | 2012-10-25 |
20120269302 | PROCESS FOR DECODING ALAMOUTI BLOCK CODE IN AN OFDM SYSTEM, AND RECEIVER FOR THE SAME - A process for decoding a signal being representative of a Space Time or Frequency Block coding during two signaling periods (STBC) or two parallel channels (SFBC) is provided. The process receives an OFDM signal received from at least one antenna. The process also performs an OFDM demodulation in order to generate N frequency domain representations of the received signal. Then the process performs a decoding process on said OFDM demodulated signal and groups the received signal in word code, Y=(y | 2012-10-25 |
20120269303 | Branch Processing of Search Tree in a Sphere Decoder - Sphere decoding of signals for MIMO detection involves a first distance processor arranged to determine a distance between symbols of a received symbol vector and possible transmit symbols, in a search sequence according to a search tree. A line from root to leaf of the search tree represents a possible transmit symbol vector and the sequence of processing root level symbols can be ordered with respect to increasing distance without explicit sorting of the root level symbols based on distance calculations. A next symbol in the sequence is determined, based on a symbol currently being processed by the first distance processor, and a second distance processor determines the distance in respect of the next symbol in the search sequence for the same possible transmit symbol vector, in parallel with the determining of the distance in respect of the current symbol by the first distance processor. By looking ahead to the next symbol in the sequence and determining its distance in parallel, without waiting to see if the sequence jumps away from that next symbol, the processing can be speeded up or use less resources such as silicon area on an integrated circuit. | 2012-10-25 |
20120269304 | Symbol Clock Recovery Circuit - A symbol clock recovery circuit is provided for a data communication system using coherent demodulation. The symbol clock recovery circuit comprises an analog-to-digital converter comprising a first input for receiving a coherent-detected baseband analog signal derived from a carrier signal, a second input for receiving an adapted symbol clock signal, and an output for outputting a digital signal comprising a frame having a preamble with at least two symbols. The symbol clock recovery circuit comprises further a phase shifting unit comprising a first input for receiving a symbol clock signal derived from the carrier signal, and a timing detector, comprising a first input for receiving the digital signal from the analog-to-digital converter and an output for providing a signal comprising information about an optimum sample phase to the phase shifting unit. | 2012-10-25 |
20120269305 | BANG-BANG OFFSET CANCELLATION (AUTOZERO) - A receive channel offset correction scheme utilizes “eye edge” samplers and demultiplexers already present and essential for operation of the CDR algorithm, and adds only simple word-rate logic, with no new analog circuitry. The result is the ability to precisely determine the offset polarity as well as to get an approximate immediate measure of the offset magnitude. The offset detected includes all of the analog circuitry in the channel, including the samplers themselves. | 2012-10-25 |
20120269306 | METHOD AND APPARATUS FOR CROSS-POLARIZATION COMPENSATION - Methods and apparatus for compensating for polarization loss in communications systems that use orthogonally spaced polarization. In one example, a signal processing method uses a statistical decorrelation process to separate out two orthogonally polarized desired signals from noisy received signals that include these orthogonally polarized desired signals along with their cross-polarized components, thereby compensating for the polarization contamination. | 2012-10-25 |
20120269307 | PROCESSING A RADIO FREQUENCY SIGNAL - Circuitry and a method for use in a radio frequency receiver for processing a radio frequency signal are provided. The circuitry comprises a mixer arranged to receive the radio frequency signal and down-convert the received radio frequency signal to a lower frequency. The received radio frequency signal has an interference component and the interference component in the down-converted signal is within an interference frequency range. The circuitry also comprises an LC based notch filter arranged to receive the down-converted signal from the mixer, filter the down-converted signal, and output the filtered signal for processing by a baseband processing block. The LC based notch filter has a notch centered within said interference frequency range, such that the LC based notch filter is arranged to attenuate the interference component in the down-converted signal. | 2012-10-25 |
20120269308 | SAMPLING CLOCK SELECTION MODULE OF SERIAL DATA STREAM - A sampling clock selection module for a serial data stream is disclosed. The sampling clock selection module includes a multi-phase generation circuit, a sampling circuit, a comparison unit and a logic operation unit. The multi-phase generation circuit generates a plurality of non-overlapping clock phases derived from a reference clock signal. The phase selection circuit selects a sampling clock phase under a calibration mode. The sampling circuit performs sampling on the serial data stream a plurality of times to generate a plurality of sampled values in response to the sampling clock phase. The comparison unit compares the sampled values with the serial data stream so as to update a plurality of flag signals. The logic operation unit performs a logic operation on the flag signals so as to select a sampling clock phase under a normal operation mode from the clock phases. | 2012-10-25 |
20120269309 | NUCLIDE TRANSMUTATION DEVICE AND NUCLIDE TRANSMUTATION METHOD - A nuclide processing method which binds a first nuclide material including at least one of Cs, C, and Sr that undergoes nuclide transmutation to a surface layer of a multilayer structure body. The method heats the multilayer structure body by the heater. The method supplies deuterium gas, at atmospheric pressure supplied from a tank of deuterium, into an absorption chamber holding the multilayer structure body, and evacuates a desorption chamber holding the multilayer structure body to a vacuum level below atmospheric pressure to provide a flow of the deuterium gas that penetrates through the heated multilayer structure body and the first nuclide material bound on the multilayer structure body. | 2012-10-25 |
20120269310 | DYNAMIC PORT FOR MEASURING REACTOR COOLANT PUMP BEARING OIL LEVEL - A dynamic port that extends from the bottom wall of an oil reservoir that surrounds the lower guide bearing of a reactor coolant pump and is in fluid communication within an oil level gauge. The dynamic port is rotatable into and out of the oil flow path to adjust the dynamic oil level shown by the oil level gauge when the pump is at operating speed to be substantially equal to the static oil level when the motor is at rest. | 2012-10-25 |
20120269311 | IN-REACTOR PIPING WORK DEVICE AND IN-REACTOR PIPING WORK METHOD - According to an embodiment, a horizontally moving stage is mounted on a cylindrical structure within a reactor pressure vessel, travels horizontally along the surface of the cylindrical structure by wheels, and is positioned above an in-reactor pipe by the operation of the horizontally moving stage. A hollow mast is carried by the horizontally moving stage, and is expandable and contractible in a vertical attitude. When the mast is in the vertical attitude, a probe is movable within the mast and performs work in the proximity to the inner surface of the in-reactor pipe. A cable passes through the mast to be connected to the probe. | 2012-10-25 |
20120269312 | CORIUM COOLING STRUCTURE, REACTOR CONTAINMENT VESSEL PROVIDED WITH THE SAME, AND NUCLEAR POWER PLANT PROVIDED WITH THE SAME - An object is to provide a corium cooling structure that is capable of accumulating corium and debris that have flowed out from a reactor in small divided portions and of sufficiently cooling the high-temperature corium and debris, a reactor containment vessel provided with the same, and a nuclear power plant provided with the same. A capture portion that captures the corium that has flowed out from a reactor and a plurality of pipe portions that are provided in a coolant storing portion and into which the corium flows via the capture portion are provided. | 2012-10-25 |
20120269313 | STEAM GENERATOR DUAL HEAD SLUDGE LANCE - A moveable sludge lance ( | 2012-10-25 |
20120269314 | HIGH-TEMPERATURE GAS-COOLED REACTOR STEAM GENERATING SYSTEM AND METHOD - A high-temperature gas-cooled reactor steam generating system comprises a plurality of nuclear steam supply systems, a high-pressure cylinder ( | 2012-10-25 |
20120269315 | SHIFT REGISTER - Discussed herein is a shift register which is capable of stabilizing an output thereof. The shift register includes a plurality of stages for sequentially outputting scan pulses in such a manner that high durations of the scan pulses partially overlap with each other. Each of the stages includes a node controller for controlling a charging duration of a set node, and an output unit for outputting a corresponding one of the scan pulses through an output terminal for the charging duration of the set node. | 2012-10-25 |
20120269316 | SHIFT REGISTER - A shift register is provided in which leakage of charges from a voltage at a set node is prevented to stabilize an output from a stage. The shift register includes stages for sequentially outputting scan pulses. An nth one of the stages includes a node controller for controlling voltages at nodes, and an output unit for outputting any one of a corresponding one of the scan pulses and a first discharging voltage according to the voltages at the nodes. The nodes include set and reset nodes. The node controller of the nth stage includes a first switching device controlled by a voltage supplied to the reset node for supplying a second discharging voltage to the set node, and an inverter circuit controlled by a voltage supplied to the set node for supplying any one of a charging voltage and a third discharging voltage to the reset node. | 2012-10-25 |
20120269317 | MULTI-SOURCE CT SYSTEM - A multi-source computed tomography system has a first x-ray source and a second x-ray source that are respectively optimized for different imaging procedures and can be used simultaneously in the multi-source CT system. The first x-ray source can be optimized for higher power short-term operation and the second x-ray source can be optimized for lower power, longer term operation. | 2012-10-25 |
20120269318 | METHOD AND COMPUTED TOMOGRAPHY DEVICE AND DATA STORAGE MEDIUM FOR PERFORMING A DYNAMIC CT EXAMINATION ON A PATIENT - In a computed tomography apparatus and operating method, a radiation source and radiation detector are rotated around a system axis, and a patient support plate and diaphragm elements of a diaphragm associated with the x-ray source are also movable in the direction of the system axis. Movement of the patient support plate and the diaphragm plates between respective end positions is coordinated during a dynamic computed tomography examination of a subject so as to reduce and homogenize the dose of x-ray radiation to which the subject is exposed during the examination. | 2012-10-25 |
20120269319 | Versatile X-Ray Beam Scanner - Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that the total beam fluence incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis. | 2012-10-25 |
20120269320 | WASTE RECEPTACLE - A waste receptacle, including a housing; an opening for ingress of waste products into the housing, and, a receptor provided about at least a portion of an extremity of the housing. The waste receptacle is adapted to removably retain an image recording medium thereto. | 2012-10-25 |
20120269321 | SWITCHING OF ANODE POTENTIAL OF AN X-RAY GENERATING DEVICE - The present invention relates to X-ray generating technology in general. Providing X-radiation having multiple photon energies may help differentiating tissue structures when generating X-ray images. Consequently, an X-ray generating device that allows the switching of a potential of an electron collecting element versus an electron emitting element for providing different energy modes is presented. According to the present invention, an X-ray generating device is provided, comprising an electron emitting element ( | 2012-10-25 |
20120269322 | WAVELENGTH-CLASSIFYING TYPE X-RAY DIFFRACTION DEVICE - A wavelength-classifying type X-ray diffraction device bombards a sample with characteristic X-rays generated from an X-ray generation source, and detects characteristic X-rays diffracted by the sample using an X-ray detector. The X-ray generation source is composed of several metals of different atomic number, respective metals generating several characteristic X-rays of different wavelengths. An X-ray detector is composed of several pixels for receiving X-rays and outputting pulse signals corresponding to X-ray wavelengths. Pixels are respectively furnished with classification circuits. The classification circuits classify and output pixel output signals based on each of characteristic X-ray wavelengths. X-ray intensity is detected on a per-wavelength basis in individual pixels | 2012-10-25 |
20120269323 | X-ray source with an immersion lens - An x-ray source is described. During operation of the x-ray source, an electron source emits a beam of electrons. This beam of electrons is focused to a spot on a target by a magnetic focusing lens. In particular, the magnetic focusing lens includes an immersion lens in which a peak in a magnitude of an associated magnetic field occurs proximate to a plane of the target. Moreover, in response to receiving the beam of focused electrons, the target provides a transmission source of x-rays. | 2012-10-25 |
20120269324 | X-ray source with selective beam repositioning - During operation of an x-ray source, an electron source emits a beam of electrons. Moreover, a repositioning mechanism selectively repositions the beam of electrons on a surface of a target based on a feedback parameter, where a location of the beam of electrons on the surface of the target defines a spot size of x-rays output by the x-ray source. In response to receiving the beam of electrons, the target provides a transmission source of the x-rays. Furthermore, a beam-parameter detector provides the feedback parameter based on a physical characteristic associated with the beam of electrons and/or the x-rays output by the x-ray source. This physical characteristic may include: at least a portion of an optical spectrum emitted by the target, secondary electrons emitted by the target based on a cross-sectional shape of the beam of electrons; an intensity of the x-rays output by the target; and/or a current from the target. | 2012-10-25 |
20120269325 | X-ray source with increased operating life - An x-ray source is described. During operation of the x-ray source, an electron source emits a beam of electrons. This beam of electrons is focused to a spot on a target by a magnetic focusing lens. In response to receiving the beam of focused electrons, the target provides a transmission source of x-rays. Moreover, a repositioning mechanism selectively repositions the beam of focused electrons to different locations on a surface of the target based on a feedback parameter associated with operation of the x-ray source. This feedback parameter may be based on: an intensity of the x-rays output by the x-ray source; a position of the x-rays output by the x-ray source; an elapsed time during operation of the x-ray source; a cross-sectional shape of the x-rays output by the x-ray source; and/or a spot size of the x-rays output by the x-ray source. | 2012-10-25 |
20120269326 | X-ray source with high-temperature electron emitter - An x-ray source is described. This x-ray source includes an electron source with a refractory binary compound having a melting temperature greater than that of tungsten. For example, the refractory binary compound may include: hafnium carbide, zirconium carbide, tantalum carbide, lanthanum hexaboride and/or compounds that include two or more of these elements. | 2012-10-25 |
20120269327 | X-RAY WAVEGUIDE - An X-ray waveguide includes a cladding and a core. The core has a periodic structure formed in at least one period direction. The periodic structure includes periodically arranged members made of material having different refractive index real parts. The core is surrounded by the cladding in the plane perpendicular to a wave-guiding direction. The Bragg angle obtained from the periodicity of the periodic structure is smaller than the total reflection critical angle at which X-rays are incident on the interface between the cladding and the core. The at least one period direction is the direction of at least one fundamental vector expressing the periodicity of the periodic structure in a plane of the core perpendicular to the wave-guiding direction. | 2012-10-25 |
20120269328 | FOLDABLE PRESSING DEVICE AND X-RAY MACHINE - Disclosed in the present embodiments are a foldable pressing device and an X-ray machine. The foldable pressing device includes a motor, a lifting member, a pressing member, a linear guide member with a stop position, a pulling member and a resilient member. The lifting member, driven by the motor, causes a sliding element in the linear guide member with a stop position and the pressing member to move upwards. When the sliding element arrives at an uprising stop position, the pressing member, under the effect of the lifting member and the pulling member, overcomes the resistance of the resilient member to realize the folding thereof. The lifting member, driven by the motor, drives the pressing member to move downwards, and the pressing member is unfolded under the effect of the resilient member. | 2012-10-25 |
20120269329 | SYSTEM AND METHOD FOR PROVIDING CALL HANDLING IN LAW ENFORCEMENT ACTIONS - A method for providing law enforcement call preemption of VoIP subscribers may include receiving a call preemption request from a law enforcement agency (LEA) designating at least one subscriber telephone number and at least one LEA telephone number, wherein the at least one subscriber telephone number is associated with a voice over Internet protocol (VoIP) calling plan subscriber. An incoming call policy may be generated at a voice application server and configured to allow incoming calls to the at least one subscriber telephone number from only the at least one LEA telephone number. The incoming call policy may be stored in a memory associated with the voice application server. The incoming call policy may be activated. An outgoing call transfer policy may be generated at the voice application server and configured to automatically transfer all outgoing calls from the at least one subscriber telephone number to a designated one of the at least one LEA telephone numbers. The outgoing call transfer policy may be stored in the memory associated with the voice application server. The outgoing call transfer policy may be activated. | 2012-10-25 |
20120269330 | Navigation System Support of In-Vehicle TTY System - The described method and system provide for utilizing a navigation system to facilitate communications between a call center and a disabled individual who may have difficulty hearing or speaking. In one implementation, if TTY services are unavailable through a TIM or TTY device, a call center may communicate with occupants of a vehicle through a vehicle navigation unit, utilizing a display and input method associated with the navigation unit. In another implementation, the call center may communicate with occupants of a vehicle through the navigation unit in the first instance. | 2012-10-25 |
20120269331 | Media Relay Service - Disclosed are various embodiments for a call control application bridges communication devices with a media call. In one embodiment, the call control application receives a request to place a media call from a source device to a destination device. The call control application determines if at least one of the source device and the destination device is associated with a telephone number registered in a relay registry. In response to a determination that the telephone number is registered in the registry, the call control application directs an intermediary agent to place a first media call to the source device and a second media call to the destination device. The call control application then bridges the first media call and the second media call via the intermediary agent. | 2012-10-25 |
20120269332 | METHOD FOR ENCODING MULTIPLE MICROPHONE SIGNALS INTO A SOURCE-SEPARABLE AUDIO SIGNAL FOR NETWORK TRANSMISSION AND AN APPARATUS FOR DIRECTED SOURCE SEPARATION - A method is provided for encoding multiple microphone signals into a composite source-separable audio (SSA) signal, conducive for transmission over a voice network. The embodiments enable the processing of source separation of the target voice signal from its ambient sound to be performed at any point in the voice communication network, including the internet cloud. A multiplicity of processing is possible over the SSA signal, based on the intended voice application. The level of processing is adapted with the availability of the processing power at the chosen processing node in the network in one embodiment. An apparatus for separating out the target source voice from its ambient sound is also provided. The apparatus includes a directed source separation (DSS) unit, which processes the two virtual microphone signals in the SSA representation, to generate a new SSA signal including the enhanced target voice and the enhanced ambient noise. | 2012-10-25 |
20120269333 | Method and Apparatus for Identifying a Conference Call from an Event Record - A method for identifying a conference call from a communication device, wherein the communication device includes a memory for storing a calendar event record. The method includes: parsing at least some of the calendar event record, wherein the parsing includes an automatic discovery feature; determining, based on the parsing, whether the calendar event record includes conference call scheduling information in relation to a scheduled conference call session; generating, based on the parsing, one or more identifiers for at least some of the conference call scheduling information; and storing in the memory the one or more identifiers. A host communication device and a non-host participant communication device can also be configured for performing the method. | 2012-10-25 |
20120269334 | METHOD AND APPARATUS FOR JOIN SELECTION OF A CONFERENCE CALL - A method for join selection of a conference call from a communication device, wherein the communication device includes a memory for storing an event record. The method includes: identifying from the event record one or more addresses for contacting a conference call server for establishing a scheduled conference call session; automatically selecting, based on specified criteria, one of the addresses as a default address associated with a default join option for establishing the scheduled conference call session; generating an identifier for associating the selected default address with the default join option; and storing the identifier in the memory. | 2012-10-25 |
20120269335 | METHOD AND APPARATUS FOR PROTECTING MODERATOR ACCESS FOR A CONFERENCE CALL - A method for protecting moderator access using a communication device. The method includes: displaying an interface for editing a conference call profile, the conference call profile including conference call scheduling information including one or more addressees for communicating with a conference call server, wherein the conference call scheduling information further includes a moderator access code and a participant access code; generating an indicator for the conference call profile for excluding sending of the moderator access code to invited participants; and storing the conference call profile including the indicator in a memory of the communication device. A communication device can be configured to perform the method. | 2012-10-25 |
20120269336 | METHOD, APPARATUS AND SYSTEM FOR CALL LEG SELECTION - A method, apparatus and system for call leg selection is provided. In an embodiment, a call manger is provided which is connected to telephones that have the same telephone number. When the call manager receives an incoming call identifying that telephone number, the call manager sends a query to each of the telephones inquiring as to which telephone should receive the call. Depending on the response, the call manager will route the call to the appropriate one of the telephones. | 2012-10-25 |
20120269337 | TELEPHONE NUMBER-BASED ADVERTISING - Methods, systems, and apparatus, including computer program products, in which a first telephone number is associated with a second telephone number, and a web-based advertisement is served for an advertiser that includes the first telephone number. A call placed to the first telephone number is received, and the call is routed to the second telephone number based on the association of the second telephone number with the first telephone number. A determination as to whether a call-through event in response to receiving the call placed to the first telephone number has occurred, and an advertiser associated with the second telephone number is charged a cost-per-call amount if the call-through event is determined to have occurred. | 2012-10-25 |
20120269338 | Method for Increasing the Efficiency of Automated Telephony Systems - The problem of an automated telephony system having only a single way to measure a caller's difficulty in processing a transaction when using the system is solved by selecting from multiple thresholds for measuring the caller's difficulty. Having a choice of alternative thresholds to measure the caller's difficulty, referred to as inefficiency thresholds, allows for a more responsive approach to managing an automated telephony system. This choice of inefficiency thresholds overcomes multiple problems of systems only using one inefficiency threshold, such as: (1) transferring a call to a live agent too quickly, (2) transferring a call to a live agent too slowly, and (3) giving a caller a feeling that the automated telephony system is unresponsive to his or her needs. Having multiple inefficiency thresholds allows for a more dynamic response to a diverse audience of callers and serves different needs of a caller during various parts of a call. | 2012-10-25 |
20120269339 | System and Method for Providing Customer Activities While in Queue - A system and method for providing customer activities while in queue allows for one or more customers to interact with one or more customer activities while waiting to speak with a live agent. The customers engage the customer activities while holding in a queue where the customer activities reduce the boredom, frustration, and perceived hold duration associated with holding to speak to a live agent. The customers are offered one or more options of the customer activities to interact with and the system and method monitors the customers' selections and interaction with the customer activities. As agents become available, each customer is transferred to an agent along with information regarding the customer's interaction with a selected customer activity. Upon completion of the interaction between the agent and the customer, the customer has the option to return to the selected customer activity and continue interacting with the selected customer activity. | 2012-10-25 |
20120269340 | HIERARCHICAL ENCRYPTION/DECRYPTION DEVICE AND METHOD THEREOF - A hierarchical encryption device for decrypting a ciphertext and outputting a plaintext is disclosed in the invention, wherein the ciphertext comprises an encrypted block and a plurality of ciphertext blocks. The device comprises a first decryption unit, a generator and a second decryption unit. The second decryption unit is for decrypting the encrypted block by a secret key with a second decryption method to generate at least one index block and a plurality of confusion blocks. The generator is for generating a plurality of mask blocks according to the plurality of confusion blocks and the index block, wherein the number of the plurality of mask blocks is the same as that of the plurality of ciphertext blocks. The first decryption unit is for decrypting the plurality of ciphertext blocks by the plurality of mask blocks with a first decryption method to generate a plurality of plaintext blocks, wherein the number of the plurality of plaintext blocks is the same as that of the plurality of ciphertext blocks. | 2012-10-25 |
20120269341 | Method For Operating A Tachograph And Tachograph - A method for operating a tachograph having an application controller and a safety controller. A memory is associated with the application controller and a further memory is associated with the safety controller. An encrypted program code having at least one associated signature is made available to the safety controller. The encrypted program code is decrypted by means of the security controller and verified by the at least one signature. It is detected whether the decrypted program code (EPC) is intended for the application controller and/or for the security controller. Depending on what is detected, the program in the memory and/or the further program in the further memory is at least partially replaced by the decrypted program code and, depending on a result of the verification, the at least partially replaced program and/or the at least partially replaced further program is released for executing. | 2012-10-25 |
20120269342 | BLOCK ENCRYPTION DEVICE AND METHOD AND COMPUTER PROGRAM - In block cipher based on generalized Feistel network, pseudorandomness and strong-pseudorandomness may be fulfilled efficiently. In encrypting a plaintext of kn-bit blocks, Feistel permutation is applied in terms of 2n bits as a unit, and then block-based permutation based on a binary de Bruijn graph with symmetrical type 2 branch coloring is applied. The Feistel permutation and the block-based permutation are grouped together to form a round. The round is repeatedly performed a preset number of times to output a ciphertext. | 2012-10-25 |
20120269343 | Encrypting Communications - A method of securely communicating a data chirp signal from a transmitter to a receiver, the chirp signal comprising at least one symbol, each symbol comprising one or more identical chirps, each chirp encoding a symbol value, the method comprising: negotiating between the transmitter and the receiver encryption parameters of the chirp signal, the encryption parameters defining at least one property of each symbol of the chirp signal; at the transmitter, encrypting the chirp signal as negotiated; at the transmitter, encoding data in the chirp signal via the symbol value of each chirp; and transmitting the encrypted and encoded chirp signal from the transmitter to the receiver. | 2012-10-25 |