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)
11/2000
11/21/2000CA2192515C Identification number issuing device and identification number verification device
11/21/2000CA2154995C Process and system for interleaving and desinterleaving sdh blocks
11/21/2000CA2148199C Convolutional interleaver with reduced memory requirements and address generator therefor
11/16/2000WO2000069135A1 Method and device for correcting digital code words in a digital communication network
11/16/2000WO2000069105A1 Method for processing transmission errors in a digital communication system
11/16/2000WO2000069079A1 Multiplexing method and multiplexing device, and data signal transmission method and data signal transmission device
11/16/2000WO2000019616A3 Turbo product code decoder
11/16/2000DE19918319A1 Verfahren zum Decodieren von faltungscodierten Codewörtern und entsprechender Faltungsdecodierer A method for decoding convolutionally encoded codewords and corresponding convolutional decoder
11/15/2000EP0906665A4 MODIFIED REED-SOLOMON ERROR CORRECTION SYSTEM USING (w+i+1)-BIT REPRESENTATIONS OF SYMBOLS OF GF(2w+i )
11/15/2000EP0885488A4 Method and apparatus for generating a transform
11/15/2000CN1273724A Method for protecting important data bits using less important data bits
11/15/2000CN1273713A Transmission system comprising error correction circuit, interlever and puncturing or repeating device
11/15/2000CN1273468A Method for likelihood-based correction reference value in high-speed closed loop
11/14/2000US6148431 Add compare select circuit and method implementing a viterbi algorithm
11/14/2000US6148430 Encoding apparatus for RAID-6 system and tape drives
11/14/2000US6148428 Method and apparatus for modulation encoding data for storage on a multi-level optical recording medium
11/14/2000US6148288 Scalable audio coding/decoding method and apparatus
11/14/2000US6148043 Viterbi decoder and viterbi decoding method
11/14/2000US6147823 Method for recording digital data including a data conversion or format conversion, and apparatus using the method
11/09/2000WO2000067439A1 Estimation method, receiver and decoder, of channel conditions in wireless communications
11/09/2000WO2000067386A1 Apparatus and method for normalizing metric values in a component decoder in a mobile communication system
11/09/2000WO2000067383A1 Low delay decoding
11/09/2000WO2000067125A1 Processor
11/08/2000EP1050990A1 Method of updating reference value in a high speed closed loop based on likelihood
11/08/2000EP1050989A2 MAP rate detection for variable rate CODECs
11/08/2000EP1050110A1 Method for a general turbo code trellis termination
11/08/2000EP1020035A4 Method and apparatus for encoding a binary signal
11/08/2000EP0754341A4 A method and apparatus for protecting data from mis-synchronization errors
11/08/2000CN1272978A Interleaving method and device, and deinterleaving method and device
11/08/2000CN1272733A Rate match and channel interweaving of communication system
11/07/2000US6145114 Method of enhanced max-log-a posteriori probability processing
11/07/2000US6145113 Series reed-solomon decoder synchronized with bit clock signal
11/07/2000US6145112 Error correcting method and apparatus
11/07/2000US6145111 High-performance low-complexity error-correcting codes
11/07/2000US6145110 Digital data decoder that derives codeword estimates from soft data
11/07/2000US6145109 Forward error correction system for packet based real time media
11/07/2000US6144710 Joint maximum likelihood sequence estimator with dynamic channel description
11/07/2000US6144676 Method for enhancing data transmission
11/07/2000US6144324 Method of modulating and demodulating digital data and digital data modulator/demodulator
11/02/2000WO2000065727A2 Method for decoding convolution-encoded code words and corresponding convolutional decoder
11/02/2000WO2000065726A1 Method and apparatus for error control
11/02/2000WO2000065446A1 A system and method employing a rate matching algorithm in a communication network
11/02/2000EP1049284A2 Multiresolution transmission with multicarrier signals
11/02/2000EP1049283A2 Multiresolution transmission with multicarrier signals
11/02/2000EP1049282A2 Multiresolution modulation with multicarrier signals
11/02/2000EP1049001A1 Arithmetic apparatus
11/02/2000EP1048155A2 Apparatus and method for determining the closest coset points in a trellis decoder
11/02/2000EP1048114A1 Device and method for inserting previously known bits in input stage of channel encoder
11/01/2000CN1272289A Modifying data with has been coded
11/01/2000CN1272271A Transmission system for transmitting main signal and auxiliary signal
11/01/2000CN1272255A Transmission system with adaptive channel encoder and decoder
11/01/2000CN1272254A Transmission system having simplified channel decoder
11/01/2000CN1272253A Soft output decoder for convolution code and soft output decoding method
11/01/2000CN1272252A Channel coding device and method for rate matching
11/01/2000CN1272251A Error protecting method and error protective device
10/2000
10/31/2000US6141789 Technique for detecting memory part failures and single, double, and triple bit errors
10/31/2000US6141788 Method and apparatus for forward error correction in packet networks
10/31/2000US6141787 Digital modulation and demodulation
10/31/2000US6141786 Method and apparatus for performing arithmetic operations on Galois fields and their extensions
10/31/2000US6141783 Error propagation limiting encoder/decoder for multilevel decision feedback equalization
10/31/2000US6141781 Process for editing of data, in particular with variable channel bit rate
10/31/2000US6141388 Received signal quality determination method and systems for convolutionally encoded communication channels
10/31/2000US6141384 Decoder for trellis encoded interleaved data stream and HDTV receiver including such a decoder
10/31/2000US6140841 High speed interface apparatus
10/31/2000CA2167745C Communication arrangement with improved echo and noise suppression in a channel containing quantization
10/26/2000WO2000064058A1 Encoder and decoder
10/26/2000WO2000064057A1 Segmentation mechanism for a block encoder
10/26/2000WO2000063885A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063884A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063883A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063882A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063881A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000DE19918507A1 Datenübertragungsvorrichtung und -verfahren Data transmission apparatus and method
10/25/2000EP1047219A1 Method for balancing the ratio Eb/I in a service multiplexing CDMA system and telecommunication systems using same
10/25/2000EP1047199A2 Data transmission device and method
10/25/2000EP1046291A1 Recording arrangement for digitally recording a received analog video signal in data packets of an mpeg transport stream
10/25/2000EP1046236A1 Turbo code interleaver with near optimal performance
10/25/2000EP1046235A1 Partial response maximum likelihood (prml) bit detection apparatus
10/25/2000EP1046165A1 Generation of amplitude levels for a partial response maximum likelihood (prml) bit detector
10/24/2000US6138265 Decoding trellis coded modulated data with a conventional Viterbi decoder
10/24/2000US6138264 Syndrome calculation circuit
10/24/2000US6138263 Error correcting method and apparatus for information data having error correcting product code block
10/24/2000US6138262 Memory address generator in convolutional interleaver/deinterleaver
10/24/2000US6138261 Concatenated coding system for satellite communications
10/24/2000US6138133 Circuit for calculating the inverse of an arbitrary element of a finite field
10/19/2000WO2000062461A2 Interleavers and de-interleavers
10/19/2000WO2000062427A1 Apparatus and method for viterbi decoding
10/19/2000WO2000062426A1 Intra-row permutation for turbocode
10/19/2000WO2000062425A1 Method for coding channels
10/19/2000WO2000028693A9 Method and apparatus for performing error correction by combining two instances of a message
10/18/2000EP1045541A2 Multiresolution transmission and error correction coding with multicarrier signals
10/18/2000EP1045522A1 Method and device for channel interleaving and multiplexing
10/18/2000EP1045521A2 Rate matching and channel interleaving for a communications system
10/18/2000EP1044508A1 Transmission system comprising an error correction circuit, an interleaver, and a puncturing or repeating device
10/18/2000EP1044507A1 Non-binary viterbi decoder using butterfly operations
10/18/2000CN1270724A Method and system for rapid initial signal detection in a wireless communications system
10/17/2000US6134696 Encoding and decoding rate-1/n convolutional codes and their punctured versions
10/17/2000US6134694 Error control method and error control device for digital communication
10/17/2000US6134225 Device for broadcasting digital information via satellite
10/17/2000US6134061 Digital signal recording and reproducing apparatus and digital signal recording and reproducing method collectively recording inspecton codes and forming a gap therebetween during post-scoring