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)
04/1998
04/28/1998US5745508 Error-detection code
04/28/1998US5745506 Error correcting decoder
04/28/1998US5745505 Digital signal encoding method and apparatus, digital signal recording medium, and digital signal decoding method and apparatus
04/28/1998US5745504 For transmitting data over a channel in a telecommunications system
04/28/1998US5745503 Error correction decoder that operates in either ARDS system or a RBDS system
04/28/1998US5745502 Error detection scheme for ARQ systems
04/28/1998US5745497 Convolutional interleaving/DE-interleaving method and apparatus for data transmission
04/28/1998US5745398 Method for the implementation of modular multiplication according to the Montgomery method
04/28/1998CA2117560C Error detector circuit for receiver operative to receive discretely-encoded signals
04/23/1998WO1998017006A1 Interleaved data communications system for controlling multiple centrifuges
04/23/1998WO1998017005A1 Method and circuit for digital modulation and method and circuit for digital demodulation
04/23/1998WO1998016996A1 Decoder for a trellis encoded signal corrupted by ntsc co-channel interference and white noise
04/23/1998WO1998016919A1 Method of insuring data integrity with a data randomizer
04/22/1998EP0837564A2 Apparatus for performing a trace back operation in a Viterbi decoder
04/22/1998CN1179651A Convolutional interieaver and method for generating address
04/21/1998US5742640 Method and apparatus to improve PSTN access to wireless subscribers using a low bit rate system
04/21/1998US5742622 Error detection and correction system for a stream of encoded data
04/21/1998US5742621 Method for implementing an add-compare-select butterfly operation in a data processing system and instruction therefor
04/21/1998US5742620 GMD decoding apparatus and a method therefor
04/21/1998US5742612 Method and device for interleaving a sequence of data elements
04/21/1998CA2085426C Synchronized resetting of coding devices
04/16/1998WO1998016016A2 Error correction with two block codes and error correction with transmission repetition
04/16/1998WO1998016015A1 Method and apparatus for decoding block codes
04/16/1998WO1998015947A2 Parallel spectral reed-solomon encoder and decoder
04/16/1998CA2267837A1 Method and apparatus for decoding block codes
04/16/1998CA2267211A1 Error correction with two block codes
04/15/1998EP0836285A2 Reed-Solomon decoder with general-purpose processing unit and dedicated circuits
04/15/1998EP0836284A2 Code generator for selectively producing cyclic redundancy check data codes different in data length
04/15/1998EP0836187A1 Signal recording/reproduction apparatus and method of changing error recovery process execution sequence
04/15/1998EP0705510B1 Receiver for a direct sequence spread spectrum orthogonally encoded signal employing rake principle
04/14/1998US5740204 Digital radiocommuncation receiver
04/14/1998US5740203 Trellis demapper of a convolutional decoder for decoding pragmatic trellis codes suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data
04/14/1998US5740186 Apparatus and method for error correction based on transmission code violations and parity
04/14/1998US5740185 Interleaved data communications system for controlling multiple centrifuges
04/14/1998CA2136058C Error correction circuit
04/14/1998CA2068117C Viterbi decoder device
04/14/1998CA2042798C Viterbi decoder
04/09/1998WO1998015063A1 A method of data protection
04/09/1998WO1998014940A1 Reproducing device and device and method for correcting error
04/09/1998DE19719654A1 Error-corrected decoding for disease symptom detection
04/08/1998EP0834996A2 Improvements in or relating to error correction techniques
04/08/1998EP0834223A1 An optimal soft-output decoder for tail-biting trellis codes
04/08/1998EP0834222A1 Parallel concatenated tail-biting convolutional code and decoder therefor
04/08/1998EP0834125A1 Error detection and correction method and apparatus
04/08/1998EP0833946A1 Method and apparatus for determining a mutation
04/08/1998EP0795160A4 Neural network binary code recognizer
04/08/1998CN1178617A Method and apparatus for formatting of data for transmission
04/08/1998CN1178436A Base-band interleaver for code devision multiple access mobile telecommunication system
04/07/1998US5737345 Method for arithmetic decoding
04/07/1998US5737343 Circuit for localizing errors in Reed-Solomon decoders
04/07/1998US5737252 Circuit arrangement comprising a permutation unit and method of processing a batch of items
04/02/1998WO1998013941A1 Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters
04/02/1998WO1998013940A1 Error detection scheme for arq systems
04/02/1998CA2267373A1 Error detection scheme for arq systems
04/02/1998CA2265640A1 Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters
04/01/1998EP0832525A2 Communication system for superimposing data onto a video signal
04/01/1998EP0832520A1 Dedicated alu architecture for 10-bit reed-solomon error correction module
04/01/1998EP0832455A1 Method and apparatus to protect data within a disk drive buffer
03/1998
03/31/1998US5734962 Satellite communications system utilizing parallel concatenated coding
03/31/1998US5734681 Process and system for transferring vector signal with precoding for signal power reduction
03/31/1998US5734663 In a communications channel
03/31/1998US5734341 Encoding digital data
03/26/1998WO1998012848A1 Interference mitigation by joint detection of cochannel signals
03/26/1998WO1998012820A1 Convolutional decoding with the ending state decided by crc bits placed inside multiple coding bursts
03/26/1998WO1998012819A1 Improved multiple-burst-correction system
03/26/1998WO1998012818A1 Transmission system with improved lock detection
03/26/1998CA2266080A1 Convolutional decoding with the ending state decided by crc bits placed inside multiple coding bursts
03/25/1998EP0831600A1 Arrangement for transmitting digital information by satellite
03/25/1998EP0830770A1 Method and apparatus for determining coding rate in a wireless communication system
03/25/1998EP0830742A1 Improved system for correction of three and four errors
03/25/1998EP0830741A1 High speed cyclical redundancy check system using a programmable architecture
03/25/1998EP0830678A1 Trellis code with improved error propagation
03/25/1998CN1177429A Data receiving apparatus and method of deinterleaving data
03/25/1998CN1177426A Method and apparatus for coherent channel estimation in a communication system
03/19/1998WO1998011727A1 Apparatus for processing data elements to be inserted into a frame
03/19/1998WO1998011688A1 A decoding technique for tail biting codes
03/19/1998WO1998011671A1 An improved system for coding signals
03/19/1998WO1998011670A1 Method and apparatus for performing decoding of codes at variable data rates
03/19/1998WO1998001957A3 Transmission system and receiver with improved detection, and improved detection method
03/19/1998CA2185847A1 Method and apparatus for encoding and decoding digital signals
03/18/1998EP0829154A1 A method for identifying data transmission rate, and a receiver
03/18/1998EP0829144A1 Apparatus and method for adaptive forward error correction in data communications
03/18/1998CN1176722A Method and apparatus for decoding an encoded signal
03/18/1998CN1176721A A method for identifying data transmission rate, and a receiver
03/18/1998CN1176719A A method for determining connection quality, and a receiver
03/18/1998CN1176714A Improved system for correction of three and four errors
03/18/1998CN1176534A Apparatus for determining error locator plynomial for use in reed-solomon decoder
03/17/1998US5729560 Method and coding means for protected transmission of data on the basis of multi-component coding
03/17/1998US5729559 Method and apparatus for correcting errors using multiple estimates
03/17/1998US5729558 Method of compensating for Doppler error in a wireless communications system, such as for GSM and IS54
03/17/1998US5729526 Asynchronous transfer mode type multimedia radiocommunication system
03/17/1998US5729226 Rob bit compensation system and method associated with a transmitter or CODEC
03/11/1998EP0828248A2 Error correction method and error correction device
03/11/1998EP0827651A1 Method and apparatus for estimating a channel parameter in a digital radio frequency communication system
03/11/1998EP0787325A4 Error correction method and apparatus for disk drive emulator
03/11/1998CN1175825A Trace-back method and apparatus for use in viterbi decoder
03/10/1998US5727029 Branch metric module in viterbi decoder
03/10/1998US5727004 Method and apparatus for data encoding and communication over noisy media
03/10/1998US5727003 Method and apparatus for flash burst error correction
03/05/1998WO1998001954A3 Transmission and reception of a digital information signal