15th week of 2012 patent applcation highlights part 26 |
Patent application number | Title | Published |
20120087399 | Systems and Methods that Provide Frequency Domain Supplemental Training of the Time Domain Equalizer for DMT - Using a known or later developed time domain equalizer coefficient training algorithm, a least square solution for the time domain equalizer coefficients is taken at a starting point and iteratively improved on. In particular, the improvement is directed towards maximizing number of bits per frame loaded over the time domain equalizer coefficient choice. This can be accomplished by maximizing capacity directly rather than setting a goal to shorten the channel and hoping that the capacity will be maximized as a result. | 2012-04-12 |
20120087400 | METHOD FOR RECEIVING DATA IN MULTI INPUT MULTI OUTPUT - Disclosed is a method for receiving data in a Multi Input Multi Output (MIMO) system, the method comprising: decoding data transmitted from a transmitter by using one beam-forming vector included in a codebook that beam-forming vectors are formed in a hierarchical structure according to at least one of change directions of radio channels, the number of channel change directions, and a change rate; determining whether to update the beam-forming vector based on the radio channel changes; selecting other beam-forming vector included in the codebook having a hierarchical structure when it is determined that update for the beam-forming vector is required; feed-backing information about an index indicating where the selected beam-forming vector is located in the hierarchical structure of the codebook to the transmitter; and decoding data received from the transmitter by using the selected beam-forming vector. | 2012-04-12 |
20120087401 | METHOD AND APPARATUS OF USING CDD LIKE SCHEMES WITH UE-RS BASED OPEN LOOP BEAMFORMING - A method and apparatus of wireless communication are disclosed. The wireless communication performs pilot signal transmissions using a first precoding matrix for user equipment specific pilot signals, the pilot signal transmissions having a first transmission rank. The wireless communication also performs data transmissions using a second precoding matrix for data when the data transmissions have a second transmission rank less than the first transmission rank, in which the second precoding matrix includes a transformed version of the first precoding matrix. Alternatively, the wireless communication can perform data transmissions using at least two precoding matrices for data when the data transmissions have a second transmission rank less than or equal to the first transmission rank. Accordingly, the precoding matrix used for data is a transformed version of the precoding matrix used for user equipment specific pilot signals. | 2012-04-12 |
20120087402 | IN-SYSTEM METHOD FOR MEASUREMENT OF CLOCK RECOVERY AND OSCILLATOR DRIFT - Various embodiments relate to an in-system measurement of clock signals in a communications circuit. A circuit may include a central processing unit and at least one phase error counter (PEC) that uses a measurement clock to determine the accuracy of a target signal. In some embodiments, the PEC may include a counter that compares a clock signal produced by a reference oscillator with the signal of the measurement clock by generating an oscillator phase error based the measured difference during a target period. In some embodiments, the PEC may measure the performance of a clock recovery module by measuring a difference between a produced recovered clock signal and the measurement clock signal, which may be the clock recovery phase error between the two signals. The CPU may also use the measured phase errors to determine other values related to the target signal(s). | 2012-04-12 |
20120087403 | COMMUNICATION APPARATUS FOR CONTINUOUS PHASE MODULATION SIGNAL - A communication apparatus for a continuous phase modulation signal. The communication apparatus includes a first processing unit configured to generate first information of the continuous phase modulation signal using first symbol data; a symbol converting unit configured to convert the first symbol data into second symbol data or convert the second symbol data into the first symbol data; a symbol storage unit configured to store the second symbol data; a second processing unit configured to second information of the continuous phase modulation signal using the second symbol data stored in the symbol storage unit; a third processing unit configured to generate third information of the continuous phase modulation signal using a modulo operation of an integer related to a modulation index; and an output unit configured to add an output from the third processing unit and an output from the first processing unit and generate the continuous phase modulation signal. | 2012-04-12 |
20120087404 | Calibrating Received Signal Measurements in a Communication Device - Received signal measurements are calibrated in a communication device by measuring a received signal level for each of one or more subcarriers of a transmitted signal received from another communication device, converting the measured received signal level for each of the one or more subcarriers into a corresponding measured power level, estimating a terminal-to-terminal impedance between the communication devices and calculating a corrected power level for each of the one or more subcarriers as a function of the measured power level for the subcarrier, a known reference input impedance for the communication device and the estimated terminal-to-terminal impedance. | 2012-04-12 |
20120087405 | Trace Canceller with Equalizer Adjusted for Trace Length Driving Variable-Gain Amplifier with Automatic Gain Control Loop - Distortions of both amplitude and phase along a transmission line are compensated for by a trace canceller inserted between a transmitter and a receiver. The trace canceller has an equalizer that compensates for a trace length between the transmitter and the trace canceller. A variable gain amplifier between the equalizer and an output buffer has its gain controlled by an automatic gain control circuit that compares low-frequency swings of the input and output of the trace canceller. The gain of the variable gain amplifier is reduced to prevent the output buffer from saturating and clipping peak voltages on its output. Thus both the variable gain amplifier and the output buffer remain in the linear region. Training pulses from the transmitter are passed through the trace canceller without clipping of peak voltages, allowing the transmitter and receiver to adjust transmission parameters to best match the transmission line. | 2012-04-12 |
20120087406 | DEVICE AND METHOD FOR RECEIVING DOWNLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A device and method is provided for iterative inter-cell interference cancellation and channel equalization in the mobile communication system. A downlink receiver of a mobile communication system according to the present invention includes a channel estimator for estimating channel impulse response of a selected cell from channel signals of respective cells; an equalizer for equalizing the channel impulse response output by the channel estimator using an equalization coefficient; a despreader for generating a symbol observation value per code channel by despreading the output of the equalizer with a code of the selected cell; and a cell interference estimator for estimating a symbol signal power and noise power of a data code channel from the symbol observation value and generates the estimated MMSE as a chip level regeneration sample. | 2012-04-12 |
20120087407 | Apparatus and method for applying unequal error protection during wireless video transmission - A method for wireless transmission of video including component data bytes representing components of a video block includes applying transmission bit coding adapted to provide relatively greater error protection to wireless transmission bits of a wireless transmission frame corresponding to bits of the component data byte which are more visually significant than to those transmission bits of the transmission frame corresponding to bits of the component data byte which are less visually significant. | 2012-04-12 |
20120087408 | METHOD AND SYSTEM FOR IMPROVING COMPRESSED IMAGE CHROMA INFORMATION - Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel. Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image. | 2012-04-12 |
20120087409 | METHOD AND SYSTEM FOR IMPROVING COMPRESSED IMAGE CHROMA INFORMATION - Methods, systems, and computer programs for improving compressed image chroma information. In one aspect of the invention, a resolution for a red color component of a color video image is used that is higher than the resolution for a blue color component of the color video image. Another aspect includes utilizing a lower or higher value of a quantization parameter (QP) for one or more chroma channels as compared to the luminance channel. Another aspect is use of a logarithmic representation of a video image to benefit image coding. Another aspect uses more than two chroma channels to represent a video image. | 2012-04-12 |
20120087410 | METHOD AND SYSTEM FOR GENERATING A TRANSFORM SIZE SYNTAX ELEMENT FOR VIDEO DECODING - In a video processing system, a method and system for generating a transform size syntax element for video decoding are provided. For high profile mode video decoding operations, the transform sizes may be selected based on the prediction macroblock type and the contents of the macroblock. A set of rules may be utilized to select from a 4×4 or an 8×8 transform size during the encoding operation. Dynamic selection of transform size may be performed on intra-predicted macroblocks, inter-predicted macroblocks, and/or direct mode inter-predicted macroblocks. The encoding operation may generate a transform size syntax element to indicate the transform size that may be used in reconstructing the encoded macroblock. The transform size syntax element may be transmitted to a decoder as part of the encoded video information bit stream | 2012-04-12 |
20120087411 | INTERNAL BIT DEPTH INCREASE IN DEBLOCKING FILTERS AND ORDERED DITHER - A dither processing system processes pixel data having an integer component and a fractional component. The system may parse picture data into a plurality of blocks having a size corresponding to a dither matrix. Fractional components of each pixel may be compared to a corresponding dither value from the dither matrix. Based on the comparison, the processing system may determine whether or not to increment the integer components of the respective pixels. By performing such comparisons on a pixel-by-pixel basis, it is expected that this dithering will be more effective than this other dither processing. | 2012-04-12 |
20120087412 | Method for Determining Boundary Strength - A method for determining the boundary strengths of edges in a block-based digitally encoded image is disclosed. The method includes setting the boundary strength of two adjacent blocks in an Inter macroblock to a first strength value if any one of the two adjacent blocks contains non-zero prediction residual in the encoding data and setting the boundary strength thereof to a second strength value if the two adjacent blocks are located in the same motion compensation block. An edge with boundary strength equal to the second strength value will be skipped in a deblocking process. | 2012-04-12 |
20120087413 | VIDEO DECODING DEVICE, VIDEO DECODING METHOD, VIDEO DECODING PROGRAM, AND VIDEO DECODING INTEGRATED CIRCUIT - With use of a simplified program or calculating device for motion compensation, a video decoding device decodes video data compressed by motion detection operations on macroblock units, as in the MPEG-4AVC standard. The video decoding device splits compressed data blocks of the prescribed size, 16×16 pixels for instance, to generate sub-blocks, which are smaller than the blocks and on which the video decoding device is able to execute motion compensation operations. The video decoding device duplicates a motion vector assigned to a given block to generate as many motion vectors as there are sub-blocks in the given block, and executes motion compensation on each sub-block using the corresponding duplicate motion vector. Data resulting from the motion compensation operation on each sub-block is combined to obtain a target block corresponding to the given block. | 2012-04-12 |
20120087414 | APPARATUS AND METHOD FOR PROCESSING VIDEO DATA - An apparatus and method for processing video data is disclosed. In an embodiment, the video data processing apparatus comprises a decoding unit configured to decode a frame image, divided into a number of slices and then encoded, on a slice basis and to deblock-filter a number of the decoded slices except boundary portions between the decoded slices and a slice edge deblock filter unit configured to comprise a number of slice edge deblock filters operated in conjunction with the decoding unit and to in parallel deblock-filter the boundary portions between the decoded slices using a number of the slice edge deblock filters. Accordingly, the boundary portions between slices can be efficiently deblock-filtered. | 2012-04-12 |
20120087415 | CONTEXT-BASED ADAPTATIONS OF VIDEO DECODER - A receive device receives video data in the form of an encoded video bit stream. A video decoder of the receive device identifies a portion of the video data corresponding to a first scene and determines a complexity for this first scene and also determines a quality of service for the receive device. If the complexity of the first portion of video data is greater than a complexity threshold value or the quality of service is less than a quality of service threshold value, then the video decoder uses a hardware accelerator to decode the portion of video data. If, however, the complexity of the portion of video data is less than the complexity threshold value and the quality of service is greater than the quality of service threshold value, then the video decoder may use software decoding to decode the portion of video data. | 2012-04-12 |
20120087416 | Method and System for Switching Elementary Streams on a Decoder with Zero Delay - Presented herein are system(s), method(s), and apparatus for rapid switching between streams of data. In one embodiment, there is described a circuit for providing media. The circuit comprises a multiplexed stream processor, a queue, and a decoder. The multiplexed stream processor receives a multiplexed stream and filtering at least one elementary stream. The queue queues the at least one elementary stream. The decoder decodes the at least one elementary stream. The multiplexed stream processor filters at least another elementary stream instead of at least one elementary stream after issuance of a command to switch from the at least one elementary stream to the at least another elementary stream. The queue stores a portion of the at least one elementary stream after issuance of the command, said portion of the at least one elementary stream being written into the queue before issuance of the command. The decoder decodes the portion of the at least one elementary stream and the at least another elementary stream. | 2012-04-12 |
20120087417 | APPARATUS AND METHOD FOR MULTIMEDIA SERVICE - An apparatus and method are provided for securing service quality in multimedia services. The method includes arranging media data samples in each data frame (moof) included a data field of a media data box (mdat), according to a specific rule, and recording control information based on the specific rule in a control information field (sidx) of the mdat. The control information defines an arrangement of the samples in each moof, and includes level information about a level assigned to each sample and index information about a location where each sample is arranged in the data field. | 2012-04-12 |
20120087418 | Communication Device and Method of Determining a Ranging Value in the Communication Device - A communication device and a method of determining a ranging value in the communication device are provided. The communication device, includes: a transmitter path, including: a transmitter clock generating circuit configured to generate a transmitter clock signal; a receiver path, including: a clock recovery circuit configured to recover a receiver clock signal from a received signal; a comparator circuit coupled to the clock recovery circuit and configured to compare the receiver clock signal and the transmitter clock signal to generate an output signal; a ranging determination circuit configured to determine a ranging value based on the output signal. | 2012-04-12 |
20120087419 | CHANNEL ESTIMATION METHODS AND SYSTEMS BASED ON POWER MEASUREMENT AT RECEIVERS - Methods and systems that enable the determination of accurate channel estimates by measuring only power values of pilot signal transmissions at a receiver are described. Various measurement procedures that are based on average power measurements or short term, per-symbol measurements can be employed. Furthermore, procedures utilizing adaptive pilots generated with receiver feedback and deterministic pilots generated without receiver feedback are also described. | 2012-04-12 |
20120087420 | Data Interface Apparatus Having Adaptive Delay Control Function - Disclosed herein is a data interface apparatus having an adaptive delay control function, which includes a transmitter generating and transmitting data and strobe signals through an intermediate signal path; and a receiver restoring data by receiving the signals, detecting a time difference of a low-level signal and a high-level signal of a strobe signal after an interval where data is high and strobe is low, regulating skew according to the detected time difference, and outputting the strobe signal with the regulated skew. Hence, the skew can be actively regulated in an environment where the skew changes. | 2012-04-12 |
20120087421 | DETECTING THE PASSING BETWEEN A TRANSMITTER AND A DETECTOR - Method and a system for detecting the passing between a transmitter module and a detecting module is described. The method may comprise: detecting a plurality of signals transmitted by said transmitter module; determining phase information associated with at least a part of said plurality of detected signals; and, determining said passing on the basis of said phase information. | 2012-04-12 |
20120087422 | METHOD FOR GENERATING CODEBOOK, METHOD AND APPARATUS FOR DATA TRANSMISSION - A method for generating a codebook and a method and an apparatus for data transmission are provided. The method includes: receiving a label of a codeword sent by a User Equipment (UE); selecting the codeword identified by the label from the codebook for eight-antenna; and coding data to be sent by using the codeword. The codebook for eight-antenna includes at least one rank-8 codeword for eight-antenna. The rank-8 codeword for eight-antenna is generated by multiplying an inverse matrix of a rotation matrix for eight-antenna with an eight-dimensional matrix formed by rank-4 codewords for four-antenna; or generated by extending rank-4 codewords for eight-antenna, where the rank-4 codeword for eight-antenna is generated according to codewords for four-antenna. Therefore, the codeword in the codebook for eight-antenna is applicable to scenarios including dual-polarization strong correlation, dual-polarization weak correlation, single-polarization strong correlation, and single-polarization weak correlation, etc. | 2012-04-12 |
20120087423 | MULTI-CELL COOPERATIVE COMMUNICATION SYSTEM AND TERMINAL DEVICE - Disclosed is a data transmission system that transmits data by using relay. The relay may select a transmission terminal from among a plurality of terminals accessing a base station. The base station may transmit base station data to the relay during a first time slot, the transmission terminal may transmit terminal data to the relay. The relay may transmit the terminal data to the base station and may transmit the base station data to the transmission terminal during a second time slot. | 2012-04-12 |
20120087424 | Uplink Precoding For Retransmission Without Explicit Precoding Instruction - A method in a wireless communication device includes receiving precoding matrix information including first and second precoding submatrices, transmitting a first transport block from a first set of at least two antennas according to the first precoding submatrix and a second transport block from a second set of at least two antennas according to the second precoding submatrix, receiving a retransmission request for the second transport block, and retransmitting the second transport block according to a retransmission precoding matrix from at least one of the first set of antennas and at least one of the second set of antennas. | 2012-04-12 |
20120087425 | CODEBOOK SUBSAMPLING FOR PUCCH FEEDBACK - A method in a mobile communication terminal includes holding a definition of a sub-sampled codebook identifying precoding matrices to be used for providing precoding feedback by the terminal The precoding matrices in the sub-sampled codebook are selected from a master codebook that is made-up of a long-term sub-codebook and a short-term sub-codebook. The definition defines a first subset of the long-term sub-codebook and a second subset of the short-term sub-codebook. A Multiple-Input Multiple-Output (MIMO) signal is received in the terminal via multiple receive antennas. Based on the received MIMO signal, a precoding matrix is selected from the sub-sampled codebook for precoding subsequent MIMO signals transmitted to the terminal. The precoding feedback indicating the selected precoding matrix is calculated. | 2012-04-12 |
20120087426 | COMPRESSED FEEDBACK FORMAT FOR WLAN - In a method for transmitting channel feedback data from a receiver to a transmitter, channel data for a plurality of orthogonal frequency division multiplexing (OFDM) tones for one or more spatial streams corresponding to a communication channel is determined. A plurality of angle values associated with the one or more spatial streams and one or more OFDM tones is determined. For each of the one or more spatial streams, a per-tone signal to noise ratio (PT-SNR) associated with one or more OFDM tones is determined, and an average signal to noise ratio (avg-SNR) is determined by averaging the signal to noise ratio (SNR) values. A feedback report is generated to include at least i) the plurality of angle values, ii) the PT-SNRs, and iii) the avg-SNR. The feedback report is included in a data unit to be transmitted from the receiver to the transmitter. | 2012-04-12 |
20120087427 | REFERENCE SIGNAL TRANSMITTING METHOD AND DEVICE IN A MULTI-ANTENNA SYSTEM - Provided are a reference signal transmitting method and device in a multi-antenna system. A terminal generates a plurality of reference signal sequences to which different cyclic shift values are allocated, respectively, generates an orthogonal frequency division multiplexing (OFDM) symbol to which the plurality of reference signal sequences are mapped, and transmits the OFDM symbol to a base station through a plurality of antennas. Each cyclic shift value allocated to each reference signal sequence is determined on the basis of a parameter n indicated by a cyclic shift field transmitted from a physical downlink control channel (PDCCH). | 2012-04-12 |
20120087428 | INTEGRATED CIRCUIT WITH CHANNEL ESTIMATION MODULE AND METHOD THEREFOR - An integrated circuit comprises channel estimation module for generating at least one channel estimation signal based on at least one of a plurality of pilot signals within concurrent resource elements. The channel estimation module comprising extension module arranged to receive a demodulation reference signal comprises the plurality of pilot signals and to add an extension to the demodulation reference signal, inverse discrete Fourier transform (IDFT) module arranged to perform an inverse discrete Fourier transform function on the extended demodulation reference signal to generate a time domain reference signal, reference signal separation module arranged to separate out at least one pilot signal component from the time domain reference signal. The channel estimation module further comprises and discrete Fourier transform (DFT) module arranged to perform a discrete Fourier transform function on the at least one pilot signal component to generate at least one extended channel estimation signal. | 2012-04-12 |
20120087429 | Method, Codebook and Base Station for Precoding - A method, a codebook, and a Base Station (BS) for precoding are provided. The precoding method includes: obtaining a total uplink power of a User Equipment (UE); if the total uplink power is greater than ¾ of a rated total transmit power of antennas, selecting a codeword from a first codebook with imbalanced power between layers; otherwise, selecting a codeword from the first codebook and a second codebook with balanced power between layers, so as for precoding data to be transmitted according to the selected codeword. | 2012-04-12 |
20120087430 | SYSTEMS AND METHODS TO EXPLOIT AREAS OF COHERENCE IN WIRELESS SYSTEMS - Non-linear or linear precoding is used to create separate areas of coherence to different users. Limited feedback techniques may also be employed to send channel state information (CSI) from the plurality of users to the MU-MAS. In some embodiments, a codebook is built based on basis functions that span the radiated field of a transmit array. Additionally, the precoding may be continuously updated to create non-interfering areas of coherence to the users as the wireless channel changes due to Doppler effect. Moreover, the size of the areas of coherence may be dynamically adjusted depending on the distribution of users. | 2012-04-12 |
20120087431 | ANTENNA DIVERSITY APPARATUS AND ANTENNA DIVERSITY METHOD - The present invention provides an antenna diversity apparatus and an antenna diversity method. The antenna diversity apparatus comprises: a plurality groups of antennas, a switching unit, a demodulating unit, an antenna switch selecting unit, and a control unit, wherein each group of the plurality groups of antennas comprises at least an antenna, and the control unit can comprises: a receiving signal quality detecting unit, a packet detecting unit, and an antenna decision unit. The antenna decision unit can be realized by hardware, firmware, or software, and the antenna switch selecting unit can be realized by hardware. The antenna diversity apparatus and the antenna diversity method provided by the present invention can switch antennas fast to avoid the defect of occurring burst error to reduce transmitting data rate, and switch to proper antennas fast when variation of the data transmission channels occurs. | 2012-04-12 |
20120087432 | WIRELESS RECEPTION DEVICE, WIRELESS RECEPTION METHOD, AND WIRELESS COMMUNICATION SYSTEM - A wireless reception device includes a determination section to determine, based on reception power of each of subcarriers of a multicarrier signal and a transfer function of each of the subcarriers, a value relating to an interference component between subcarriers, the interference component being from another subcarrier for each of the subcarriers, with respect to each of the subcarriers, and a removal section to remove the interference component from each of the subcarriers, based on the value relating to the interference component. | 2012-04-12 |
20120087433 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications apparatus accommodated in a communications system for exchange of information between a communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers. The communications apparatus includes a dedicated transmission data generator for each communications apparatus, configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between each communications apparatus; and a transmitter configured to transmit the dedicated frequency band information with dedicated control channel for each communications apparatus by using a specific frequency band which is set from among a plurality of frequency bands assigned to the communications system, in which the specific frequency band is set as a primary band in a frequency band assigned to the communication system. | 2012-04-12 |
20120087434 | Method and System for Pre-Equalization in a Single Weight Spatial Multiplexing MIMO System - Certain aspects of the method may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas at a base station. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of spatially multiplexed communication signals. A plurality of pre-equalization weights may be generated based on the generated plurality of vectors of baseband combined channel estimates. The received plurality of spatially multiplexed communication signals may be modified based on the generated plurality of pre-equalization weights. At least a portion of the generated plurality of pre-equalization weights may be fed back to the base station for modifying subsequently transmitted spatially multiplexed communication signals which are transmitted from at least a portion of the plurality of transmit antennas at the base station. | 2012-04-12 |
20120087435 | ENHANCED CHANNEL FEEDBACK FOR MULTI-USER MIMO - A method includes receiving in a mobile communication terminal over a communication channel a Multiple-Input Multiple-Output (MIMO) signal that includes at least a transmission addressed to the terminal. A Multi-User Signal to Noise Ratio (MU-SNR) is estimated in the terminal based on the received signal. The MU-SNR is indicative of a power ratio between the transmission addressed to the terminal and remaining components of the signal, which are assumed to include one or more transmissions addressed to one or more other terminals. Feedback, which is indicative of the communication channel and is based on the MU-SNR, is transmitted from the terminal. | 2012-04-12 |
20120087436 | TONE REORDERING IN A WIRELESS COMMUNICATION SYSTEM - In a method for generating an orthogonal frequency division multiplexing (OFDM) symbol to be included in a PHY data unit for transmission via a communication channel, wherein the OFDM symbol includes a plurality of OFDM tones, information bits to be included in the OFDM symbol are encoded to generate encoded information bits. The encoded information bits are parsed into a plurality of spatial streams. The spatial streams, or space-time streams generated from the spatial streams, are mapped to transmit chains using a plurality of spatial mapping matrices corresponding to the plurality of OFDM tones. Additionally, one of i) reordering OFDM tones before spatial mapping is applied, or ii) reordering OFDM tones after spatial stream mapping is applied and reordering spatial mapping matrices to match the reordered OFDM tones is performed. The OFDM symbol to be included in the PHY data unit is generated. | 2012-04-12 |
20120087437 | Message Rearrangement For Improved Code Performance - A system and method for permuting known and unknown message bits before encoding to provide a beneficial rearrangement of bits. Such a method can improve distance properties in the resulting subcode. In various embodiments, the structure of a beneficial rearrangement is dependent on the parameters of how known and unknown bits are grouped and on the specific type of code being used. Given these two parameters, the message bits can be rearranged to more efficiently leverage any apriori knowledge. | 2012-04-12 |
20120087438 | INTEGRATED CIRCUIT FOR RADIO TRANSMISSION - A radio transmitting device and method enables reduction of an increase of CGI memories for the control channel and an improvement of the throughput of the data channel. When multiplex transmission through the control channel and the data channel is carried out and when adaptive modulation is applied to both channels, an MCS selecting section ( | 2012-04-12 |
20120087439 | Modulation Method and Apparatus - Embodiments of the present invention disclose a modulation method and apparatus. The modulation method includes: processing at least two data blocks, and outputting at least two single-carrier Orthogonal Frequency Division Multiplex (OFDM) signals, where the at least two data blocks include a first data block and a second data block, the at least two single-carrier OFDM signals include a first single-carrier OFDM signal corresponding to the first data block and a second single-carrier OFDM signal corresponding to the second data block, a difference between a carrier center frequency RF | 2012-04-12 |
20120087440 | Method and Apparatus for Data Transmission Based on Coordinated Multiple Point Transmission - The present invention provides a method and an apparatus for transmitting data based on coordinated multiple point transmission and reception. The method includes: a transmitting point pre-configuring at least two coordinated multiple point transmission and reception policies; and the transmitting point determining a channel quality value of every cell according to received signals of multiple cells participating in coordinated transmission and reception; and selecting a corresponding coordinated multiple point transmission and reception policy according to the channel quality value of the cell, and transmitting a data stream to a receiving end according to the corresponding coordinated multiple point transmission and reception policy. In the present invention, when the channel quality is relatively poor, various cell participating in the coordinated multiple point transmission and reception transmit the same one data stream to ensure the data transmission and reception quality. | 2012-04-12 |
20120087441 | METHOD AND APPARATUS FOR OPTIMIZING TRANSMITTER POWER EFFICIENCY - A peak to average power ratio signal is generated from a first mapping function that selects the peak to average power ratio signal that corresponds to the data rate or data format of the signal to be transmitted. The selected peak to average power ratio signal is summed with a desired average transmit power signal. The resulting summation signal is input to a second effectively continuously valued mapping function comprising a table that has a plurality of power amplifier control signal values each with a corresponding peak transmit power. Each peak transmit power signal value results in a power amplifier control signal value that achieves the best possible transmitter power efficiency while still meeting out of band spurious emissions and waveform quality requirements. The summation signal value maps to one of the power amplifier control signal value that is then used to adjust a parameter such as bias of the power amplifier. | 2012-04-12 |
20120087442 | DESIGN ASPECTS TO SUPPORT LTE-A DOWNLINK HI-ORDER MIMO - A method of operation of a MIMO transmitter, in a cellular network supporting both legacy standard-compliant mobile terminals and next generation standard-compliant mobile terminals, the method comprising defining a matrix of resource blocks within an information channel of the cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency subband; assigning a first set of reference signals (RSs) for the legacy standard-compliant mobile terminals to resource blocks at specific locations within the matrix to be transmitted by the MIMO transmitter, the specific locations being defined by, the legacy standard; and assigning a second set of RSs for the next-generation standard-compliant mobile terminals to other resource blocks within the matrix to be transmitted by the MIMO transmitter. | 2012-04-12 |
20120087443 | Event Handling in a Radio Circuit - A radio circuit comprises an interface unit for communicating data and commands over a communication link between a digital baseband circuit and the radio circuit. Furthermore, the radio circuit comprises an event-scheduling unit, a local time-reference unit, a synchronization unit, and an execution-control unit. The event-scheduling unit is arranged to receive event-request commands specifying an event to be executed in the radio circuit and a time instant at which the specified event is to be executed, from the digital baseband circuit. Furthermore, the event-scheduling unit is arranged to, in response to receiving an event request-command, schedule the specified event to be executed on the specified time instant. The execution-control unit is arranged to issue execution of each scheduled event at the scheduled time instant based on time information from the local time reference unit. The local time-reference unit is synchronized with a time-reference unit in the digital baseband circuit in response to a synchronization command, from the synchronization unit. | 2012-04-12 |
20120087444 | Secure Information Transfer Based on Global Position - Secure communication of information is effected from a first party to a second party when the first party knows its own global location and the global location of the second party, and employs what essentially is an undiscoverable code signal that is broadcast to, and received by, both the first and the second parties. The first party securely communicates information to the second party by modifying the code signal with the information that is to be communicated and sends the modified code signal to the second party. Illustratively, the code signal is related to the Y component of a GPS signal. | 2012-04-12 |
20120087445 | Control Modules - A circuit is provided comprising detector circuitry, calculating circuitry, and determining circuitry. The detector circuitry is figured to generate an I data signal magnitude value of a sampled I data signal and a Q data signal magnitude value of a sampled Q data signal. The calculating circuitry is configured to calculate a phase shift angle φ | 2012-04-12 |
20120087446 | Systems and methods for sparse error removal in communications systems - A method for robust demodulation of the communications system in presence of sparse severe impulse noise is presented. In this invention, the application of impulse noise removal in orthogonal frequency domain multiplexing systems is investigated. The impulse noise causes catastrophic accuracy degradation at the output of the fast Fourier transform operations at the receiver. In this invention, an impulse noise identification scheme is proposed to determine the presence of the impulse noise. An impulse noise value search algorithm at known location based on the steepest descent method, an impulse noise location algorithm, and a novel iterative impulse error correction scheme are presented to remove the sparse error and demodulate the transmitted symbols accurately. | 2012-04-12 |
20120087447 | APPARATUS AND METHOD FOR ESTIMATING HIGH SPEED FREQUENCY OFFSET IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method estimate a high speed frequency offset in a wireless communication system. The apparatus includes a correlator, an accumulator, a phase calculator, and a frequency offset coupler. The correlator performs a first correlation and a second correlation based on a first reference signal and a second reference signal. The accumulator accumulates results of the correlations. The phase calculator calculates a first phase and a second phase from the accumulated first correlation value and the accumulated second correlation value. The frequency offset coupler determines whether a frequency offset deviates from a frequency offset estimate range based on a difference between the first phase and the second phase, and compensates the frequency offset according to the determination result. The apparatus can estimate a frequency offset within an error allowable range under an environment where a terminal moves at high speed. | 2012-04-12 |
20120087448 | SYSTEM AND METHOD FOR ACQUISITION OF SIGNALS - A system for processing a received signal having at least one code applied thereto, the received signal having a frequency, the system comprising: first correlator circuitry arranged to correlate the received signal with a first code to provide an output; second correlator circuitry arranged to correlate the received signal with a second code to provide an output, wherein the first code and the second code are different; and processor for processing together the outputs of the first and second correlator circuitry to cancel the frequency. | 2012-04-12 |
20120087449 | METHODS AND APPARATUS FOR SYNCHRONIZATION IN MULTIPLE-CHANNEL COMMUNICATION SYSTEMS - Methods and apparatus for processing multichannel signals in a multichannel receiver are described. In one implementation, a plurality of demodulator circuits may provide a plurality of outputs to a processing module, with the processing module then simultaneously estimating noise characteristics based on the plurality of outputs and generating a common noise estimate based on the plurality of outputs. This common noise estimate may then be provided back the demodulators and used to adjust the demodulation of signals in the plurality of demodulators to improve phase noise performance. | 2012-04-12 |
20120087450 | WIRELESS COMMUNICATION NODE CONNECTIONS - The present invention relates to a wireless communication node ( | 2012-04-12 |
20120087451 | Digital Correction of Analog Polyphase Filters - Embodiments of the present invention provide systems, devices and methods for modeling and correcting amplitude and quadrature phase errors generated within analog components of a receiver. A frequency-dependent correction method is employed that closely tracks the frequency dependent nature of the mismatch between the I and Q polyphase filter responses. In particular, digital correction is performed on a signal based on a modeled error function generated during a calibration of the receiver | 2012-04-12 |
20120087452 | Techniques for Adjusting Clock Signals to Compensate for Noise - A first integrated circuit (IC) has an adjustable delay circuit and a first interface circuit. A first clock signal is provided to the adjustable delay circuit to produce a delayed clock signal provided to the first interface circuit. A second IC has a supply voltage sense circuit and a second interface circuit that transfers data with the first IC. The supply voltage sense circuit provides a noise signal to the first IC that is indicative of noise in a supply voltage of the second IC. The adjustable delay circuit adjusts a delay of the delayed clock signal based on the noise signal. In other embodiments, edge-colored clock signals reduce the effects of high frequency jitter in the transmission of data between integrated circuits (ICs) by making the high frequency jitter common between the ICs. In other embodiments, a supply voltage is used to generate clocks signals on multiple ICs. | 2012-04-12 |
20120087453 | METHOD FOR SELECTING CLOCK SOURCE IN SYNCHRONIZATION DIGITAL HIERARCHY NETWORK - A method for selecting a clock source in Synchronization Digital Hierarchy (SDH) network and a clock module are provided in the present invention. The method includes: generating a clock information message based on the clock quality information in SDH network, and the clock module of every network node in said SDH network independently selects a clock source by using said clock information message. The method and clock module for selecting a clock source in SDH provided in the present invention enable automatic switch and recovery for a clock source, and effectively solve the problem of clock looping, and adequately maintain the compatibility with the existing system without increasing the cost of the system. | 2012-04-12 |
20120087454 | PRIMARY NEUTRON SOURCE MULTIPLIER ASSEMBLY - A neutron emitting assembly, which is useful in nuclear reactors and other industrial applications, is made of a major amount of beryllium encapsulating a minor amount of | 2012-04-12 |
20120087455 | Electromagnetic flow regulator, system, and methods for regulating flow of an electrically conductive fluid - Disclosed embodiments include electromagnetic flow regulators for regulating flow of an electrically conductive fluid, systems for regulating flow of an electrically conductive fluid, methods of regulating flow of an electrically conductive fluid, nuclear fission reactors, systems for regulating flow of an electrically conductive reactor coolant, and methods of regulating flow of an electrically conductive reactor coolant in a nuclear fission reactor. | 2012-04-12 |
20120087456 | APPARATUS AND METHOD FOR REINFORCING PIPING ARRANGEMENT OF REACTOR CORE SPRAY SYSTEM - A reinforcing device includes a clamp that is disposed on an outer side of a welded portion of a core spray system piping and holds the core spray system piping at axially symmetrical points on an outer surface thereof, the piping being located on opposite sides of a weld line of the welded portion and also includes a bolt that is provided on the clamp so as to serve as a mechanical fastening mechanism applying a compressive force to the welded portion from the outside of the core spray system piping. | 2012-04-12 |
20120087457 | CLADDING MATERIAL, TUBE INCLUDING SUCH CLADDING MATERIAL AND METHODS OF FORMING THE SAME - A multi-layered cladding material including a ceramic matrix composite and a metallic material, and a tube formed from the cladding material. The metallic material forms an inner liner of the tube and enables hermetic sealing of thereof. The metallic material at ends of the tube may be exposed and have an increased thickness enabling end cap welding. The metallic material may, optionally, be formed to infiltrate voids in the ceramic matrix composite, the ceramic matrix composite encapsulated by the metallic material. The ceramic matrix composite includes a fiber reinforcement and provides increased mechanical strength, stiffness, thermal shock resistance and high temperature load capacity to the metallic material of the inner liner. The tube may be used as a containment vessel for nuclear fuel used in a nuclear power plant or other reactor. Methods for forming the tube comprising the ceramic matrix composite and the metallic material are also disclosed. | 2012-04-12 |
20120087458 | NUCLEAR FUEL ASSEMBLY HOLD DOWN SPRING - A nuclear fuel assembly having a plurality of multi-leaf hold down spring sets extending from a top nozzle. Each spring set consists of a multiple number of springs leafs in order to provide a large working range of spring deflection. Each spring leaf has a straight, flat base section followed by a straight, flat tapered beam with a secondary spring set having a curvature at its peripheral end. | 2012-04-12 |
20120087459 | Shift Register And Display Device - To provide a shift register and a display device each capable of satisfactorily preventing noises of individual stage outputs without increasing circuit complexity, each stage of the shift register includes: a first output transistor; a first capacitor; an input gate; a first switching element; a second switching element; a third switching element; a fourth switching element; and a fifth switching element. | 2012-04-12 |
20120087460 | SEMICONDUCTOR DEVICE - A semiconductor device comprising a circuit including a plurality of thin film transistors and at least one diode (D | 2012-04-12 |
20120087461 | BIDIRECTIONAL SHIFTER REGISTER AND METHOD OF DRIVING SAME - A bidirectional shift register includes first, second, third and fourth control signal bus lines for providing first, second, third and fourth control signals, Bi | 2012-04-12 |
20120087462 | HYBRID COLLIMATOR FOR X-RAYS AND METHOD OF MAKING SAME - An x-ray collimator comprises a first plurality of x-ray attenuation plates having a width and a length, the length extending along a first direction, wherein the plates of the first plurality of x-ray attenuation plates are spaced apart from one another along a second direction. The collimator comprises a second plurality of x-ray attenuation plates having a width and a length, the length extending along the second direction, wherein the plates of the second plurality of x-ray attenuation plates are spaced apart from one another along the first direction and wherein the plates of the second plurality of x-ray attenuation plates extend through the plates of the first plurality of x-ray attenuation plates. The first and second directions are orthogonal, and the width of the plates of the first plurality of x-ray attenuation plates is greater than the width of the plates of the second plurality of x-ray attenuation plates. | 2012-04-12 |
20120087463 | PHOTON COUNTING AND ENERGY DISCRIMINATING DETECTOR THRESHOLD CALIBRATION - An imaging system includes an x-ray source, a detector that receives x-rays emitted from the x-ray source, a DAS configured to count photon hits in the detector that occur at photon energies above at least a low keV threshold, a medium keV threshold, and a high keV threshold, and a computer operably coupled to the DAS. The computer is programmed to vary each of the medium keV threshold and the high keV threshold over a continuous keV range during data acquisition to define low, medium, and high keV bins that are based on the low, medium, and high keV thresholds, obtain photon counts in the low, medium, and high keV bins in a plurality of keV threshold combinations, calculate a noise variance as a function of at least one of the keV thresholds, and identify a noise minimum and low, medium, and high keV thresholds that correspond thereto. | 2012-04-12 |
20120087464 | MULTI-SOURCE LOW DOSE X-RAY CT IMAGING APARATUS - Some embodiments include a low-dose CT apparatus. Such an apparatus can comprise a plurality of x-ray sources disposed on a gantry and spaced apart along a z-axis. The sources may be configured to produce substantially overlapping fan beams, wherein overlap is substantially complete at a detector surface. Some embodiments also include a controller in electronic communication with the plurality of x-ray sources. The controller may be adapted to switch the plurality of x-ray sources between on and off states such that only one x-ray source is in an on state at any time. Furthermore, the controller circuit may be in electronic communication with at least one x-ray detector and may be adapted to synchronize the x-ray detector with the plurality of x-ray sources such that detected x-rays can be matched to an x-ray source. | 2012-04-12 |
20120087465 | MULTI-FACETED TILEABLE DETECTOR FOR VOLUMETRIC COMPUTED TOMOGRAPHY IMAGING - A system and method for CT image acquisition with increased slice acquisition and minimal image data degradation is provided. The system includes an x-ray projection source positioned that projects a cone beam of x-rays from a focal spot of the x-ray projection source toward an object and a plurality of detector modules positioned on the rotatable gantry to receive x-rays attenuated by the object. Each of the detector modules includes a module frame having a top surface that includes a plurality of facets formed thereon constructed so as to be oriented at differing angles relative to the focal spot and a plurality of sub-modules positioned on the plurality of facets to receive the x-rays attenuated by the object and to convert the x-rays to electrical signals, with each sub-module being oriented at an angle relative to the focal spot based on a respective facet on which the sub-module is mounted. | 2012-04-12 |
20120087466 | X-ray Image Recording Method - The method includes using an angiography recording system to record a series of projection images of the organ or hollow organ of an examination object during a contrast-agent wash-in or wash-out process; using a CT recording system to record and reconstruct a 3D volume image of the organ or hollow organ of the examination object; at least partly superposing the series of projection images or image sections from the series of projection images on the 3D volume image; and displaying the 3D volume image on which the projection images are superposed. | 2012-04-12 |
20120087467 | X-RAY BASED DENSITOMETER FOR MULTIPHASE FLOW MEASUREMENT - Multiphase flow measuring unit for performing X-ray density measurements on a fluid flow, the unit comprising an X-ray source generating an X-ray beam within a chosen spectral range and a first detector aimed at the beam for detecting radiation scattered by or transmitted through the flow, the spectral range being a narrow, essentially monochromatic range. | 2012-04-12 |
20120087468 | Methods and Devices for Quantitative Analysis of X-Ray Images - The present invention relates to network enabled analysis of x-ray images. Also described are devices comprising calibration phantoms; methods of using these devices; methods of formulating databases containing information regarding x-ray images; the databases themselves; and methods of manipulating the information and databases. | 2012-04-12 |
20120087469 | X-RAY PHOTOGRAPHY SYSTEM - An X-ray photography device capable of visualizing the operating state or position of a support unit in an image system during examinations with memory switches and enhancing the operability of the memory switches is provided. When a plurality of memory switches | 2012-04-12 |
20120087470 | X-RAY IMAGE PHOTOGRAPHING METHOD AND X-RAY IMAGE PHOTOGRAPHING APPARATUS - An X-ray image photographing method and apparatus is capable of photographing a high resolution phase contrast image and a high resolution absorption contrast image in a short time by finely adjusting the distance between a specimen and a detector with respect to an X-ray source. | 2012-04-12 |
20120087471 | RADIATION IMAGING APPARATUS, CONTROL METHOD FOR RADIATION IMAGING APPARATUS, AND STORAGE MEDIUM - A radiation imaging apparatus comprises: an output unit adapted to output an analog signal for each pixel circuit by sampling and holding an electrical signal converted from radiation; and a selection unit adapted to select positions of pixel circuits which output the analog signals, wherein after the output unit outputs the electrical signals corresponding to a predetermined number of pixel circuits as analog signals, the selection unit stops the selection and the output unit stops the output in accordance with the stop of the selection. | 2012-04-12 |
20120087472 | DIGITAL X-RAY DETECTOR ARRANGEMENT AND DIGITAL X-RAY IMAGING METHOD - The invention relates to digital imaging implemented using X-radiation and to a detector arrangement designed to be used in such imaging, the operation of said arrangement being based on counters counting signal pulses. In the invention, the detector arrangement comprises switch arrangements which are always connectable to at least two counters and which allow at least one of the counters to be always disconnected from a pixel. It is thus always possible to read out the information from at least one counter while another counter is simultaneously being used for counting signal pulses. The invention provides the advantage that the integration of image information need not be interrupted when information is to be read out from the detector during exposure as a change of the integrating counter can be effected during exposure without losing any image information. | 2012-04-12 |
20120087473 | SURFACE MICROSTRUCTURE MEASUREMENT METHOD, SURFACE MICROSTRUCTURE MEASUREMENT DATA ANALYSIS METHOD AND X-RAY SCATTERING MEASUREMENT DEVICE - There is provided a surface microstructure measurement method, a surface microstructure measurement data analysis method, and an X-ray scattering measurement device which can accurately measure a microstructure on a surface and which can evaluate a three-dimensional structural feature. In the surface microstructure measurement method, the specimen surface is irradiated with X-ray at a grazing incident angle and a scattering intensity is measured; a specimen model with a microstructure on a surface in which one or more layers is formed in a direction perpendicular to the surface and unit structures are periodically arranged in a direction parallel to the surface within the layers is assumed; a scattering intensity of X-ray scattered by the microstructure is calculated in consideration of effects of refraction and reflection caused by the layer; and the scattering intensity of X-ray calculated by the specimen model is fitted to the measured scattering intensity. Then, as a result of the fitting, an optimum value of a parameter for specifying the shape of the unit structures is determined. Therefore, it is possible to accurately measure a microstructure. | 2012-04-12 |
20120087474 | LOW-DOSE AUTOMATIC EXPOSURE CONTROL SYSTEM FOR DIGITAL PORTABLE X-RAY IMAGING - A method for obtaining a radiographic image, the method executed at least in part on a computer, generates a first exposure and acquires image data from the first exposure as a first component image. A second exposure is generated using one or more parameters that are adjusted according to an image quality characteristic of the acquired image data from the first exposure. Image data is acquired from the second exposure as a second component image. One or more additional exposures are generated and an additional component image acquired with each additional exposure. A composite image is formed by combining image data content from the first and second component images and the one or more additional component images. | 2012-04-12 |
20120087475 | X-RAY GENERATING METHOD, AND X-RAY GENERATING APPARATUS - A method for generating an X-ray includes the steps of: disposing at least a target in a chamber; irradiating an electron beam onto the target from an electron beam source disposed in or outside the chamber so as to satisfy a relation of β≦60 degrees if an incident angle of the electron beam is defined as “β”; and generating and taking an X-ray out of the target so as to satisfy a relation of −30 degrees≦β−α≦60 degrees if an output angle of the X-ray relative to a surface of the target is defined as “α”. | 2012-04-12 |
20120087476 | POLYMER LAYER ON X-RAY WINDOW - An x-ray window comprising a plurality of thin film layers stacked together, including a thin film layer and a polymer layer. The thin film layer can be diamond, graphene, diamond-like carbon, beryllium, and combinations thereof. The polymer layer can be a polyimide. A boron hydride layer may also be included. | 2012-04-12 |
20120087477 | THREE-DIMENSIONAL FOCUSED ANTI-SCATTER GRID AND METHOD FOR MANUFACTURING THEREOF - A device for, and method of manufacture of, a focused anti-scatter grid for improving the image contrast of x-ray images produced in medical, veterinary or industrial applications. The grid comprising a series of modular units so juxtaposed with each other as to form a series of focused channels for the passage of the focused imaging x-rays. The modules comprise a series of focusing ribbons of a heavy metal or a series of mating solid arcuate forms, formed of a polymer and having on at least one side surface a layer of heavy metal. | 2012-04-12 |
20120087478 | BEAM FILTER POSITIONING DEVICE - A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line. | 2012-04-12 |
20120087479 | X-ray apparatus and control method thereof - An X-ray apparatus includes guide rails arranged along different axes, an X-ray tube movably mounted on at least one of the guide rails and adapted to be moved upon user force, motors provided at the guide rails to move the X-ray tube, a force detection unit to detect the user force, and a control unit to determine a direction of force and drive the motor provided at the guide rail on an axis corresponding to the determined direction. The X-ray apparatus may be easily moved based on force detection and velocity control of the motor, thereby achieving more precise and safe movement in a desired direction. Accordingly, the X-ray apparatus may provide rapid and efficient medical examination and treatment in hospitals. | 2012-04-12 |
20120087480 | RADIOGRAPHY SYSTEM AND MOVING METHOD THEREOF - A radiography system is provided. The radiography system includes a radiographic device arranged in a movable manner, a measuring device to measure at least one of external force and torque applied to the radiographic device, and a drive device to move the radiographic device based on a direction and magnitude of the at least one of the force and torque measured by the measuring device. | 2012-04-12 |
20120087481 | CORRECTION FOR SOURCE SWITCHING IN MULTI ENERGY SCANNER - The techniques described herein provide for correcting projection data that comprises contamination due to source switching in a multi energy scanner. The correction is a multi-neighbor correction. That is, it uses data from at least two other views of an object (e.g., generally a previous view and a subsequent view) to correct a current view of the object. The multi-neighbor correction may use one or more correction factors to determine how much data from the other two views to use to correct the current view. The correction factor(s) are determined based upon a calibration that utilizes image space data and/or projection space data of a phantom. In this way, the correction factor(s) account for source leakage that occurs in multi energy scanners. | 2012-04-12 |
20120087482 | Method Of Providing An Emergency Call Center - Once an emergency button is activated, a signal would go directly to an emergency call center. A worker at the call center will identify via a GPS program, the exact location of the call, and immediately search out the nearest 911 operator. The call center operator will instantly connect to the 911 operator and stay of the call. The emergency call center will become a back up for the 911 system by recording in both speech and text. The user is not required to dial 911, and may use voice activation, which removes the physical input action required to call for assistance and location information while under attack or other distress. In addition, images of the emergency situation are automatically submitted to a security-monitoring agency. | 2012-04-12 |
20120087483 | Retrievable Outgoing Audio Messaging - The present invention relates generally to retaining outgoing audio messages between two voice communicating devices. In particular, the present invention relates to a system and method for using an external device that monitors all outgoing communication from a voice communicating device and stores such voice data with associate information for future retrieval. A system and method is disclosed that uses a device on the sender's side or on a remote system offered through the voice data network to monitor and record voice mails simultaneously with the receiver's side voice mail device. The recorded mail is available for access from any voice data device and also through electronic mail. | 2012-04-12 |
20120087484 | FACSIMILE TELECOMMUNICATIONS SYSTEM AND METHOD - A fax processing system handles faxes that are originally destined for a recipient's phone number. The fax processing system communicates with the fax recipient via a data communications network (for example, the Internet) and can provide more sophisticated fax handling capabilities than conventional fax machines. | 2012-04-12 |
20120087485 | System and method for providing routing, mapping, and relative position information to users of a communication network - A system and method providing real-time position information of one party to another party by utilizing a conventional telecommunication network system (e.g., the telephone network, a mobile telecommunications network, a computer network, or the Internet). The present invention allows a caller and a receiver of a telephone call to provide to and receive from each other position information related to the caller and/or receiver's location, including address information, GPA coordinates, nearby fixed locations (e.g., a parking structure), etc. The present invention allows a caller and receiver to retrieve routing instructions or maps for travelling to/from one another. A party may locate the position of another party via entry of the other party's unique identifier (e.g., a phone number of the other party's mobile phone). The position information of a party may be concurrently delivered to another party's computer terminal whereby the other party can process the information in further detail. | 2012-04-12 |
20120087486 | CALL CENTER RESOURCE ALLOCATION - A method for determining call center resource allocation can include modeling call center performance over an operations time period using a computer. A number of replicas of the modeled call center performance are simulated, using the computer, over a planning time period, each replica having random contact arrivals and contact service times following a stochastic arrival and service process according to a probability distributions of inter-arrival time and service time. Multiple iterations of each simulation are run on the computer to optimize call center resource allocation. A particular simulation iteration is tested against a criterion of convergence, and call center resource is allocated based on the particular simulation iteration with a successful criterion of convergence. | 2012-04-12 |
20120087487 | TELEPHONE RELAY APPARATUS, TELEPHONE RELAY METHOD, AND PROGRAM - A telephone relay apparatus | 2012-04-12 |
20120087488 | CRYPTOGRAPHIC PROCESSOR WITH DYNAMIC UPDATE OF ENCRYPTION STATE - An efficient implementation of a cryptographic processor that dynamically updates the encryption state is described. The cryptographic processor can be implemented with a minimal number of gates, yet still perform cryptographic operations quickly. The cryptographic processor has an interface, a memory, a pseudorandom permutation block and control logic. The interface receives input data blocks and returns cryptographically processed data blocks. The memory is used to store an encryption state of the cryptographic processor. The pseudorandom permutation block transforms a portion of the encryption state that is modified for each input data block by at least the input data block and a previously transformed data block. The control logic routes data in the cryptographic processor to return cryptographically processed data blocks at the interface and update dynamically the encryption state stored in memory using the transformed data blocks from the pseudorandom permutation block. | 2012-04-12 |
20120087489 | CRYPTOGRAPHIC PROCESSING APPARATUS AND CONTROL METHOD FOR CRYPTOGRAPHIC PROCESSING CIRCUIT - An aspect of the present invention is a cryptographic processing apparatus including a division unit that divides input data into multiple partial data items, the input data being one of plaintext and a round processing result; multiple data holding units that hold the partial data items, respectively; and a combining unit that combines the partial data items held in the multiple data holding units into a single round processing target data item to be subjected to round processing. The division unit selects a storage destination of each partial data item from among the data holding units, and stores each of the partial data items into the storage destination selected. The combining unit combines the partial data items into a round processing target item to reconstruct the input data according to the storage destination of each partial data item selected by the division unit. | 2012-04-12 |
20120087490 | Method And Arrangement For Protecting File-Based Information - The invention represents a method for creating a ciphertext block from a plaintext block consisting of more than one consecutive plaintext character strings (M | 2012-04-12 |
20120087491 | A METHOD AND A DEVICE FOR PERFORMING TORUS-BASED CRYPTOGRAPHY - At CRYPTO 2003, Rubin and Silverberg introduced the concept of torus-based cryptography over a finite field. The present invention extends their setting to the ring of integers modulo N, thus obtaining compact representations for cryptographic systems that base their security on the discrete logarithm problem and the factoring problem. This can result in small key sizes and substantial savings in memory and bandwidth. However, unlike the case of finite field, analogous trace-based compression methods cannot be adapted to accommodate the extended setting of the invention when the underlying systems require more than a mere exponentiation. The invention finds particular application in a torus-based implementation of the ACJT group signature scheme. Also provided is a processor. | 2012-04-12 |
20120087492 | EXECUTION UNIT FOR PERFORMING THE DATA ENCRYPTION STANDARD - Described is an execution unit for performing at least part of the Data Encryption Standard that includes a Left Half input; a Key input; and a Table input, as well as a first group of transistors configured to receive the Table input, perform a table look-up, and output data. The execution unit further includes a first exclusive-or operator having two inputs and an output that is configured to receive the Left Half input and the Key input. The execution unit also includes a second exclusive-or operator having two inputs and an output that is configured to receive the data output by the first group of transistors and to receive the output of the first exclusive-or operator. The execution unit also includes a third exclusive-or operator having two inputs and an output that is configured to receive the Left Half input and the data output by the first group of transistors. | 2012-04-12 |
20120087493 | METHOD FOR SECURING CREDENTIALS IN A REMOTE REPOSITORY - A method of securing user credentials in a remote repository is provided. In accordance with one embodiment, there is provided a method comprising generating a first private key and a first public key pair from a registered password; generating a second private key and a second public key pair; generating a storage key from the second private key and the first public key; encrypting a set of credentials using the storage key; creating a encrypted credential signature from the encrypted set of credentials and the first private key; and storing the encrypted set of credentials, the encrypted credential signature, and the second public key in the remote repository. | 2012-04-12 |
20120087494 | METHOD FOR PROVIDING CRYPTOGRAPHICAL KEY PAIRS - The invention relates to a method for creating a second asymmetric cryptographic pair of keys ( | 2012-04-12 |
20120087495 | METHOD FOR GENERATING AN ENCRYPTION/DECRYPTION KEY - The present invention relates to a method for generating an encryption/decryption key, and especially for generating a one-time encryption/decryption key used for symmetric encryption, i.e. where the same key is used both for encryption and decryption. In order to start key generation a first node sends a request to a central server for setting up communication with a second node. The central server sends a key generating file both the nodes. Each node generates a different intermediate data set, i.e a first and second data set. The first data set generated by the first node is sent to the second node, which based on this data set generates a third data set which is sent back to the first node. The generating of a first cryptographic key in node is based on bit by bit comparison between the third and the first intermediate data set and the generation of a second cryptographic key is based on bit by bit comparison between the first and the second intermediate data set. The first and second cryptographic key being the same. | 2012-04-12 |
20120087496 | HOME USE ACTIVE REMOTE ENCRYPTION AND SWITCHING DEVICE - A home use active remote encryption and switching device is revealed. Transmission of remote images and information as well as switching of home appliances is controlled by wireless communication. The home use active remote encryption and switching device includes at least one video mobile phone with specific permission, a signal receiving interface receiving signals from the mobile phone, a digital signal processor that decrypts and modulates signals from the mobile phone, a central processing unit that integrates and converts decrypted signals into switching signals, and a storage device storing audio/video signals. Thereby signals from the video mobile phone are transmitted to the remote signal receiving interface by wireless communication equipments. Then the signals are decrypted by the digital signal processor, converted into switching signals by the central processing unit, and sent to home appliances. Thus remote switching of home appliances is achieved under the control of the video mobile phone. | 2012-04-12 |
20120087497 | CONTENT PROTECTION MESSAGE EXTRACTION - A system for extracting a video-watermark embedded in a video sequence, comprising a decryption and decoding engine to receive the video sequence in a video-codec-encoded format and encrypted, then decrypt the video sequence yielding a decrypted video sequence, then decode the decrypted video sequence yielding a decrypted decoded video sequence, and then output the decrypted decoded video sequence to a display device for rendering thereon, a measurement module to measure memory usage utilized by the engine decoding at least part of the video sequence yielding measurements of memory usage, a memory usage analyzer to analyze the measurements to determine an arrangement of video frames of at least one frame type in the video sequence, and an encoding feature analyzer to analyze the arrangement of the video frames to extract the video-watermark from the video sequence. Related apparatus and methods are also described. | 2012-04-12 |
20120087498 | Method and Apparatus for Using Counter-Mode Encryption to Protect Image Data in Frame Buffer of a Video Compression System - Certain aspects for protecting image data in a video compression system may include encrypting image data utilizing counter-mode scrambling. The encrypted image data may be buffered in at least one frame buffer. The buffered encrypted image data may be decrypted by utilizing counter-mode descrambling. | 2012-04-12 |