Patents
Patents for H03M 13 - Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes (37,393)
10/2003
10/29/2003EP1357669A1 Decoding device and decoding method
10/29/2003EP1356652A1 Bit interleaved coded modulation (BICM) mapping
10/29/2003EP1356598A2 Robust checksums
10/29/2003EP1356597A2 Scaling of demodulated data in an interleaver memory
10/29/2003EP1356596A2 Method and apparatus for protecting lossless transmission of a data stream
10/29/2003CN1452321A Error correcting code block encoder and decoder with reduced random access memory requirement
10/29/2003CN1452320A Synchronous code restoring circuit and method
10/29/2003CN1126382C Channel interleaving method in digital communication system
10/29/2003CN1126341C Rate changeable communication system and receiving transmitting device adated to said system
10/29/2003CN1126314C Transmission system with adaptive channel encoder and decoder, and transmitter, receiver and transmitting method therewith
10/29/2003CN1126312C Digital data decoder that derives codeword estimates from soft data
10/29/2003CN1126271C Method for encoding multiword information with high protectivity error locative clues directed to object data words
10/29/2003CN1126253C Method and device for determining thresholds of metric values used in virterbi synchronization circuits
10/28/2003US6640327 Fast BCH error detection and correction using generator polynomial permutation
10/28/2003US6640319 Mis-synchronization detection system
10/28/2003US6639954 Mobile communication terminal and transmission-bit-rate detection method
10/28/2003US6639865 Memory device, method of accessing the memory device, and reed-solomon decoder including the memory device
10/28/2003US6639525 Method of converting a stream of databits of a binary information signal into a stream of databits of a constrained binary channel signal, device for encoding, signal comprising a stream of databits of a constrained binary channel signal, record carrier, and device for decoding
10/28/2003US6638318 Method and device for coding sequences of data, and associated decoding method and device
10/23/2003WO2003088590A1 Network comprising an interconnecting network and several network nodes that are coupled to said interconnecting network
10/23/2003WO2003088550A1 System and method for channel mapping a wireless communication system
10/23/2003WO2003088537A1 Multi-carrier communication device and multi-carrier communication method
10/23/2003WO2003088505A2 A decoding method and apparatus
10/23/2003WO2003088504A1 Method for coding and/or decoding error correcting codes, and corresponding devices and signal
10/23/2003WO2003088503A1 A method and device for space-time-frequency turbo encoding
10/23/2003WO2003088502A1 A coding method and apparatus involves the concatenation of turbo product code and time-space block code
10/23/2003WO2003088501A2 Signal, storage medium, method and device for encoding, method and device for decoding
10/23/2003WO2003088311A1 Data communication bus
10/23/2003WO2003088240A2 Method and apparatus for calibrating data-dependent noise prediction
10/23/2003WO2003088040A1 Method and apparatus for unifying self-test with scan-test during prototype debug and production test
10/23/2003WO2002071736A8 Systems and methods of error resilience in a video decoder
10/23/2003US20030200500 Obtaining cyclic redundancy code
10/23/2003US20030198215 Router for use with a link that has a set of concurrent channels
10/23/2003US20030198169 Data reproduction control method and apparatus, and optical disk unit
10/22/2003EP1355461A2 Method and unit for bit stream decoding
10/22/2003EP1355459A2 Method for synchronizing clocks in a distributed communication system
10/22/2003EP1355458A2 Method for transmitting data within a communication system
10/22/2003EP1355456A1 FlexRay communication protocol
10/22/2003EP1355431A1 Viterbi decoder
10/22/2003EP1355430A1 Error detection methods in wireless communication systems
10/22/2003EP1355429A2 ECC block encoder and decoder with reduced RAM memory requirement
10/22/2003EP1354413A2 Apparatus and method for providing optimal adaptive forward error correction in data communications
10/22/2003EP1354412A2 Space-efficient turbo decoder
10/22/2003EP1054326B1 Memory error correction using redundant sliced memory and standard ECC mechanisms
10/21/2003US6637007 System to limit memory access when calculating network data checksums
10/21/2003US6637006 Digital data decoder with improved unreliable frame detection performance
10/21/2003US6637004 Error correction circuit and method
10/21/2003US6637003 Viterbi decoder and synchronism controlling method
10/21/2003US6637002 Decoder for error correcting block codes
10/21/2003US6637001 Apparatus and method for image/voice transmission
10/21/2003US6637000 Turbo code interleaver using linear congruential sequences
10/16/2003WO2003085842A2 Method for iterative hard-input forward error correction
10/16/2003WO2003085841A2 Apparatus for iterative hard-input forward error correction decoding
10/16/2003WO2003085840A1 Method and apparatus for embedding an additional layer of error correction into an error correcting code
10/16/2003WO2003085839A1 Method and apparatus for embedding an additional layer of error correction into an error correcting code
10/16/2003WO2003085838A1 Interleave device, interleave method, deinterleave device, and deinverleave method
10/16/2003WO2003085837A1 A method for time-space block coding based on hyper-set partition
10/16/2003WO2003026295A3 A system and method for shared decoding using a data replay scheme
10/16/2003WO2003013004A3 Signal coding
10/16/2003US20030196163 ACS circuit and viterbi decoder with the circuit
10/16/2003US20030196162 Folding systolic architecture for comma-free reed-solomon decoding circuit
10/16/2003US20030196161 Weighted decoding method and circuits for comma-free reed-solomon codes
10/16/2003US20030196160 Systolic architecture for comma-free reed-solomon decoding circuit
10/16/2003US20030196159 Source coding to provide for robust error recovery during transmission losses
10/16/2003US20030196157 ECC block encoder and decoder with reduced RAM memory requirement
10/16/2003US20030196144 Processor condition sensing circuits, systems and methods
10/16/2003US20030196023 Data redundancy methods and apparatus
10/16/2003US20030194036 Synchronization code recovery circuit and method
10/16/2003US20030194027 Partial response maximum likelihood (PRML) bit detection apparatus
10/16/2003US20030194026 Viterbi decoder and decoding method using rescaled branch metrics in add-compare-select operations
10/16/2003US20030194025 Viterbi decoder and method using sequential two-way add-compare-select operations
10/16/2003US20030193971 Transmission system for transmitting a main signal and an auxiliary signal
10/16/2003CA2480575A1 Apparatus for iterative hard-input forward error correction decoding
10/16/2003CA2480524A1 Method for iterative hard-input forward error correction
10/15/2003EP1353446A2 System and method for generating cyclic codes for error control in digital communications
10/15/2003EP1353333A1 Shaped spectral coding and recording systems therefor
10/15/2003EP1353272A2 Improved carryout word calculation for cyclic shift registers
10/15/2003EP1352478A2 Method and system for allocating convolutional encoded bits into symbols before modulation
10/15/2003EP1005726B1 TURBO ENCODING/DECODING DEVICE AND METHOD FOR PROCESSING FRAME DATA ACCORDING TO QoS
10/15/2003CN1449613A A modulation technique providing high data rate through band limited channels
10/15/2003CN1449191A Data interlacing method in digital television transmission
10/15/2003CN1449152A Error correction with two block codes
10/15/2003CN1449151A Error-code pattern generating circuit and decoding circuit using the same
10/15/2003CN1449121A Turbo encoding/decoding device and method for processing frame data according to qos
10/15/2003CN1449120A Carryout word calculation for cyclic shift registers which shift multiple bits at the same time
10/15/2003CN1124726C Method and apparatus for determining rate of received data in variable rate communication system
10/15/2003CN1124694C Noncoherent receiver employing a dual-maxima metric generation process
10/15/2003CN1124692C Maximal-probability decode method for soft output of convolution code
10/15/2003CN1124691C Serial/parallel caseade convolutional code decoder and method for realizing decoding
10/15/2003CN1124590C Method for improving performance of voice coder
10/14/2003US6634007 Algebraic soft decoding of reed-solomon codes
10/14/2003US6633945 Fully connected cache coherent multiprocessing systems
10/14/2003US6633856 Methods and apparatus for decoding LDPC codes
10/14/2003US6633615 Trellis transition-probability calculation with threshold normalization
10/14/2003US6633250 Average bubble correction circuit
10/14/2003CA2174343C Method and apparatus for the transmission of variable rate digital data
10/09/2003WO2003084114A1 Error correction/decoding device and error correction/decoding method
10/09/2003WO2003084078A1 Separable cyclic redundancy check
10/09/2003WO2003084076A1 Coding transform coefficients in image / video encoder and/or decoders
10/09/2003WO2003052997A3 Method and apparatus for coding bits of data in parallel