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)
08/2004
08/18/2004CN1521965A Method of signal transmission in digital terrestrial broadcast transmission system
08/18/2004CN1163094C Turbine code decoder for logarithmic companding code and its realizing method
08/18/2004CN1162976C Chaotic interleaving method
08/18/2004CN1162841C Mitigating errors in distributed speech recognition process
08/17/2004US6779149 Burst error correction on DVD data
08/17/2004US6779148 Error detection and correction method in a computer system and main memory controller of the same
08/17/2004US6779014 Cyclic step by step decoding method used in discrete fourier transform cyclic code of a communication system
08/17/2004CA2327681C Channel code configurations for digital audio broadcasting systems and other types of communication systems
08/12/2004WO2004068756A1 Multi-carrier communication system and reception device thereof
08/12/2004WO2004068715A2 Systems and processes for fast encoding of hamming codes
08/12/2004WO2004068491A1 Data recording/reproducing system and method
08/12/2004WO2004068350A1 Data false alteration detecting method, data false alteration detecting device, and data false alteration detecting program
08/12/2004WO2004047461A3 Communication system and method using signal to noise ratio estimation for scaling in processing received wireless communication signals
08/12/2004US20040158798 Error correction circuit and error correction method
08/12/2004US20040158797 Rate matching device and rate matching method
08/12/2004US20040158792 Normalizing device and method, program, record medium on which the program is recorded, and communication terminal
08/12/2004US20040158791 Data recording/readback method and data recording/readback device for the same
08/12/2004US20040158598 Arithmetic logic unit over finite field GF(2m)
08/12/2004US20040158590 Method of calculating internal signals for use in a map algorithm
08/12/2004US20040158542 Viterbi decoder
08/12/2004US20040157601 Method for enabling a subscriber entity to actively communicate in a communication network
08/12/2004US20040156293 Apparatus for reprocucing a digital information signal
08/12/2004US20040156284 Method and apparatus for reading and writing a multilevel signal from an optical disc oscillators
08/12/2004US20040156136 Decoding apparatus and decoding method
08/12/2004US20040155802 Method of decoding a variable-length codeword sequence
08/12/2004DE4344811B4 Faltungscodierer und gittercodierte Modulationsvorrichtung mit einem Faltungscodierer Convolutional and trellis coded modulation device with a convolutional
08/12/2004DE10243319B4 Sichere Datenübertragung Secure data transmission
08/11/2004EP1445890A1 Cryptographic communication apparatus
08/11/2004EP1444803A1 Method, system and apparatus for transmitting interleaved data between stations
08/11/2004CN1520654A Method and device for transferring data according to ARQ-method
08/11/2004CN1520116A Method and system for transmission, recepting and processing of 4-level and 8-level signaling symbols
08/11/2004CN1520075A Method for controlling sublayer in wireless link aiming at dynamic configuration of packet data service
08/11/2004CN1520060A Turbo-interleaving device and method
08/11/2004CN1520059A Turbo-interleaving device and method
08/11/2004CN1520058A Turbo-interleaving device and method
08/11/2004CN1520045A Interleaving device and its interleaving method in communication system
08/11/2004CN1520044A Turbo-interleaving device and method
08/11/2004CN1520043A Error correction in CDMA mobile communication system using turbo codes
08/11/2004CN1519846A Appts. and method with checking and erasing and correcting functions
08/11/2004CN1519845A Error correction method, error correction circuit and information recording and reproducing device
08/11/2004CN1519840A Data regeneration method and appts. thereof
08/11/2004CN1161933C Low complexity decision feedback sequence estimation
08/11/2004CN1161918C Data transmssion method and equipment for encoding signal
08/11/2004CN1161911C Mapping method from calculated value of transmission format combination to indiction of transmiision format comination
08/11/2004CN1161910C Blind rate detection method and device based on foundamental-quartic viterbi decode
08/11/2004CN1161887C Method and appts. for transmitting coded data between transmitter and receiver
08/11/2004CN1161886C Coding method and apparatus
08/11/2004CN1161885C Partial response maximum likelihood (PRML) bit detection apparatus and method of actuating such bit detection
08/11/2004CN1161884C Quantization method for iterative decoder in communication system
08/10/2004US6775804 Determining integrity of a packet
08/10/2004US6775801 Turbo decoder extrinsic normalization
08/10/2004US6775800 System and method for high speed processing of turbo codes
08/10/2004US6775799 Protocol independent performance monitor with selectable FEC encoding and decoding
08/10/2004US6775250 Method of updating reference value in high speed closed loop based on likelihood
08/10/2004US6775219 Data reproduction control method and apparatus, and optical disk unit
08/10/2004US6774826 Synchronization code recovery circuit and method
08/10/2004US6774825 Modulation coding based on an ECC interleave structure
08/05/2004WO2004066506A1 Data receiving method and apparatus
08/05/2004WO2004066301A1 Method for encoding and decoding error correction block
08/05/2004WO2004066297A1 Lossless data embedding
08/05/2004WO2003096149A3 Frame formatting, coding and transmit power control method for a multicast/broadcast system
08/05/2004US20040153960 Method and system for routing in low density parity check (LDPC) decoders
08/05/2004US20040153959 LDPC decoding apparatus and method
08/05/2004US20040153958 Path metric calculation circuit in viterbi decoders
08/05/2004US20040153957 Convolutional decoding
08/05/2004US20040153956 Apparatus and method for reducing bit error rates (BER) and frame error rates (FER) using turbo decoding in a digital communication system
08/05/2004US20040153955 Decision function generator for a viterbi decoder
08/05/2004US20040153954 Method and system for indexing a decoder
08/05/2004US20040153953 Processor and method for convolutional decoding
08/05/2004US20040153952 CRC encoding scheme for conveying status information
08/05/2004US20040153946 Error correction method, error correction circuit and information-recording/reproduction apparatus
08/05/2004US20040153945 Error correction circuit employing cyclic code
08/05/2004US20040153944 Error correcting memory access means and method
08/05/2004US20040153942 Soft input soft output decoder for turbo codes
08/05/2004US20040153940 Apparatus and method for error correction in a CDMA mobile communication system
08/05/2004US20040153939 Error detection/correction system, and controller using this system
08/05/2004US20040153938 Error correcting code decoding device, program and method used in the same
08/05/2004US20040153934 Methods and apparatus for encoding LDPC codes
08/05/2004US20040153933 Error correction encoding method, error correction decoding method, error correction encoding apparatus, and error correction decoding apparatus
08/05/2004US20040153907 Safety network using phantom address information
08/05/2004US20040153722 Error correction code circuit with reduced hardware complexity
08/05/2004US20040152428 Method for transmitting a digital message and system for carrying out said method
08/05/2004US20040151259 Method of decoding a turbo-code encoded signal in a receiver and corresponding receiver
08/05/2004US20040151258 Bit likelihood calculation method and demodulation device
08/05/2004US20040151256 Apparatus and method for transmitting and receiving data in a mobile communication system using space-time trellis code
08/05/2004US20040151107 Method for transmitting a digital message and system for carrying out said method
08/05/2004DE10361194A1 Sicherheitsnetzwerk mit Phantomadressinformation Security network with phantom address information
08/04/2004EP1443658A1 Method to control the number of iterations of an iterative decoding process and device for carrying out the method
08/04/2004EP1443657A1 Turbo product code decoder
08/04/2004EP1443656A2 Method of generating parity data based on a low-density parity check (LDPC) matrix and apparatus therefor
08/04/2004EP1443655A1 Method for transmitting a digital message and system for carrying out said method
08/04/2004EP1442566A2 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
08/04/2004EP1442528A2 Decoding method and decoder for reed solomon code
08/04/2004EP1442527A1 Node processors for use in parity check decoders
08/04/2004EP1442373A1 Partially filling block interleaver for a communication system
08/04/2004EP1131893B1 Forward error corrector
08/04/2004CN2631163Y A time division duplex/code division multiple access (TDD/CDMA) communication system
08/04/2004CN1518799A Method for transmitting digital message and system for carrying out said method
08/04/2004CN1518336A Electronic camera and information equipment and portable information device
08/04/2004CN1518264A Transmitter and receiver in radio communication system using four transmitting antennas