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)
11/2004
11/04/2004WO2004095706A2 System and method for using a microlet-based modem
11/04/2004WO2004095349A2 Information exchanging and modem architecture using an intelligent database
11/04/2004WO2004095231A2 Error detection for multi-stream communications
11/04/2004US20040221223 Apparatus and method for encoding a low density parity check code
11/04/2004US20040221222 Method and apparatus for dedicated hardware and software split implementation of rate matching and de-matching
11/04/2004US20040221221 CRC operation unit and CRC operation method
11/04/2004US20040221220 Error detection and correction in a layered, 3-dimensional storage architecture
11/04/2004US20040220988 Parameter generation for interleavers
11/04/2004US20040218700 Digital implementation of multi-channel demodulators
11/04/2004US20040218694 Receiver
11/04/2004US20040218035 Mixed-media telecommunication call set-up
11/04/2004CA2522498A1 Turbo decoder with early termination of iterations
11/03/2004EP1473839A1 Data block reception method and device with error correction and error detection
11/03/2004EP1473838A1 Method for decoding variable length codes and corresponding receiver
11/03/2004EP1472880A1 Error correction of stream data
11/03/2004EP1472822A1 Enhancement of data frame re-transmission by using an alternative modulation scheme in a wlan
11/03/2004EP1472796A2 Robust signal coding
11/03/2004EP1472795A2 Method of encoding and decoding
11/03/2004EP1290808B1 System for data transmission according to the frequency hopping method
11/03/2004EP1142170B1 Method and apparatus for interleaving in a communication system
11/03/2004EP1121762B1 Method for coding or decoding and device for coding or decoding
11/03/2004EP1001543B1 Sequential decoder, and receiver using sequential decoder
11/03/2004EP0913040B1 Spiral scrambling
11/03/2004EP0880868B1 Method and apparatus for compressing and transmitting high speed data
11/03/2004CN1543115A A method for preventing network address translation (NAT) device from being attacked by network user
11/03/2004CN1543088A Iterative demodulating-decoding method and apparatus for code modulation system having output external information
11/03/2004CN1543081A Apparatus and method for transmitting and receiving ultra wideband signals
11/03/2004CN1543077A Soft demodulation method and apparatus
11/03/2004CN1542824A Optical information recording medium and data recording apparatus thereon
11/03/2004CN1542813A Examine code generating method, writing data generating method and repeat data writing method
11/03/2004CN1174631C partially buffering transmitted data to provide robust error recovery
11/03/2004CN1174556C Viterbi decoding with path metric update implemented in order of bit-slices
11/02/2004US6813744 ACS unit for a viterbi decoder
11/02/2004US6813743 Sliding window technique for map decoders
11/02/2004US6813742 High speed turbo codes decoder for 3G using pipelined SISO log-map decoders architecture
11/02/2004US6813323 Decoding method and communication terminal apparatus
11/02/2004US6812873 Method for decoding data coded with an entropic code, corresponding decoding device and transmission system
10/2004
10/28/2004WO2004093374A1 Method and device for data communication
10/28/2004WO2004093325A1 An enhanced circuit for performing error correction and detection of bch codewords
10/28/2004WO2004092873A2 Galois field linear transformer trellis system
10/28/2004US20040216029 Convolutional coding and decoding method and system
10/28/2004US20040216028 Picture encoding apparatus and method, picture decoding apparatus and method, error correction encoding apparatus and method and error correction decoding apparatus and method
10/28/2004US20040216026 Method and apparatus for interface failure survivability using error correction
10/28/2004US20040216025 Apparatus and method for encoding and decoding TFCI in a mobile communication system
10/28/2004US20040216024 Methods and apparatus for interleaving in a block-coherent communication system
10/28/2004US20040216016 Error correction in a locating method and system
10/28/2004US20040214585 Locating method and system
10/28/2004US20040213474 Data communication control apparatus and its control method, image processing apparatus and its method, and data communication system
10/28/2004DE10310812A1 Dekodiervorrichtung, Trellis-Prozessor und Verfahren Decoding, trellis processor and method
10/28/2004DE10297262T5 Metrik-Korrektur für Mehrbenutzererkennung für DS-CDMA mit langen Codes Metric correction for multiuser detection for DS-CDMA with long codes
10/27/2004EP1471677A1 Method of blindly detecting a transport format of an incident convolutional encoded signal, and corresponding convolutional code decoder
10/27/2004EP1471648A2 Method for a general turbo code trellis termination
10/27/2004EP1471647A2 Encoding and decoding of trellis codes comprising trellis sections constructed on block codes with good distance.
10/27/2004EP1471526A2 Method for recording main data on an optical information recording medium
10/27/2004EP1470656A1 Method for scrambling packet data using variable slot length and apparatus thereof
10/27/2004EP1470647A1 Dual chien search blocks in an error-correcting decoder
10/27/2004EP1092270B1 Address generator and address generating method for use in a turbo interleaver/deinterleaver
10/27/2004CN1541455A Method and appts. for efficient walsh covering and summing of signals in communication system
10/27/2004CN1540895A Method of self-adapting sub band Turbo encoding modulation in use for OFDM
10/27/2004CN1540871A LDPC iteration encoding Method based on improved Taneer graph
10/27/2004CN1173598C Method for adapting service model changed by GPRS coding mode
10/27/2004CN1173510C Constituting method and device of walls code
10/27/2004CN1173502C Self adaptable adjusting method for modulating code mode
10/27/2004CN1173496C Method for estimating signal-to-noise ratio of digital carriers in AM compatible digital audio broadcasting system
10/27/2004CN1173481C Double soft output witte. calculation decoder using improved retrospection
10/27/2004CN1173480C Weitebi decoder and transmission equipment
10/26/2004US6810502 Iteractive decoder employing multiple external code error checks to lower the error floor
10/26/2004US6810501 Single cycle cyclic redundancy checker/generator
10/26/2004US6810499 Product code based forward error correction system
10/26/2004US6810097 Carrier reproduction circuit, receiver, loop filter circuit, and oscillator circuit
10/26/2004US6810095 Viterbi decoder with reduced number of bits in branch metric calculation processing
10/26/2004US6810094 Viterbi decoder with pipelined parallel architecture
10/26/2004US6810091 Digital data deinterleaver
10/26/2004CA2233462C A digital signal system having a sync confidence counter
10/21/2004WO2004091210A1 Moving picture processing device, information processing device, and program thereof
10/21/2004WO2004091202A1 Moving picture processing device, information processing device, and program thereof
10/21/2004WO2004091201A1 Moving picture processing device, information processing device, and program thereof
10/21/2004WO2004091125A2 Methods and apparatus for interleaving in a block-coherent communication system
10/21/2004WO2004091102A1 Extracting soft information in a block-coherent communication system
10/21/2004WO2004077733A3 Method and apparatus for performing low-density parity-check (ldpc) code operations using a multi-level permutation
10/21/2004WO2004071106A3 Method for storing and transmitting data generated by a security module
10/21/2004WO2004051864B1 Dynamic real time generation of 3gpp turbo decoder interleaver sequence
10/21/2004US20040210816 Error-correcting device and decoder enabling fast error correction with reduced circuit scale
10/21/2004US20040210815 Method and system for error correction over serial link
10/21/2004US20040210814 Application of special ECC matrix for solving stuck bit faults in an ECC protected mechanism
10/21/2004US20040210813 Error detecting method and apparatus
10/21/2004US20040210812 Parallel concatenated code with soft-in soft-out interactive turbo decoder
10/21/2004US20040210811 Optimized testing of bit fields
10/21/2004US20040210618 Galois field linear transformer trellis system
10/21/2004US20040208315 Information exchanging and modem architecture using an intelligent database
10/21/2004US20040208252 Apparatus and method for generating (n,3) code and (n,4) code using simplex codes
10/21/2004US20040208240 Data encoding using an oscillator circuit
10/21/2004US20040207757 Mapping arrangement for digital communication system
10/21/2004CA2521041A1 Methods and apparatus for interleaving in a block-coherent communication system
10/20/2004EP1468499A1 Intra-decoder component block messaging
10/20/2004EP1468498A1 Chien search cell for an error-correcting decoder
10/20/2004EP1468497A1 Multi; stage code generator and decoder for communication systems
10/20/2004CN1539204A Turbo decoder with multiple scale selections
10/20/2004CN1538757A Error detecting method ofmoving image transmssion system
10/20/2004CN1538754A Error detecting method and apparatus