| 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) |
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| 10/12/1999 | US5966376 Apparatus and method for digital data transmission using orthogonal cyclic codes |
| 10/12/1999 | US5966257 Synchronous read channel integrated circuit employing discrete time timing recovery |
| 10/12/1999 | US5964897 Integrated structure for a convolutive viterbi decoder |
| 10/12/1999 | US5964896 Method and apparatus for a high speed cyclical redundancy check system |
| 10/07/1999 | WO1999051036A2 Modifying data which has been coded |
| 10/07/1999 | WO1999050990A1 An interleaving scheme for blocks in a packet switched system |
| 10/07/1999 | WO1999050983A1 Detection of code vectors in single frequency, multiple transmitter networks |
| 10/07/1999 | WO1999050981A1 Digital audio broadcasting method using puncturable convolutional code |
| 10/07/1999 | WO1999050963A2 TURBO ENCODING/DECODING DEVICE AND METHOD FOR PROCESSING FRAME DATA ACCORDING TO QoS |
| 10/07/1999 | CA2326531A1 Digital audio broadcasting method using puncturable convolutional code |
| 10/07/1999 | CA2326453A1 Detection of code vectors in single frequency, multiple transmitter networks |
| 10/07/1999 | CA2325993A1 An interleaving scheme for blocks in a packet switched system |
| 10/06/1999 | EP0948141A2 Decoding device for multichannel audio bitstream |
| 10/06/1999 | EP0948140A1 Iterative demapping and decoding of multilevel modulated signal |
| 10/06/1999 | EP0947069A1 Receiver decoder circuitry, and associated method, for decoding a channel encoded signal |
| 10/06/1999 | EP0947052A1 Error correction decoder for vocoding system |
| 10/06/1999 | CN1231083A Processor and processing method |
| 10/06/1999 | CN1230824A Acknowledgment message receiving method |
| 10/06/1999 | CA2234008A1 Encoding methods and apparatus |
| 10/05/1999 | US5961660 Method and apparatus for optimizing ECC memory performance |
| 10/05/1999 | US5961658 PR4 equalization and an EPR4 remod/demod sequence detector in a sampled amplitude read channel |
| 09/30/1999 | WO1999049609A1 Spread spectrum communication device and spread spectrum communication method |
| 09/30/1999 | WO1999049600A1 Parity determining apparatus and method |
| 09/30/1999 | CA2325421A1 Spread spectrum communication device and spread spectrum communication method |
| 09/29/1999 | EP0946014A1 Method for detecting a sequence of symbols from a received signal, and Viterbi processor for carrying out the method |
| 09/29/1999 | EP0946013A1 Device and method for transmitting digital data, device and method for demodulating digital data, and transmission medium |
| 09/29/1999 | EP0945989A1 Viterbi decoding |
| 09/29/1999 | EP0944963A1 Shortened fire code error-trapping decoding method and apparatus |
| 09/29/1999 | EP0944962A1 Method and circuit for decoding a cyclically coded signal |
| 09/29/1999 | CN1230319A Appts. for processing data elements to be inserted into frame |
| 09/29/1999 | CN1230055A State metric memory of viberbi decoder and its decoding method |
| 09/29/1999 | CN1229999A Semiconductor memory device, and method of checking the semiconductor device and method of using the same |
| 09/28/1999 | US5960150 Digital VTR |
| 09/28/1999 | US5960040 Communication signal processors and methods |
| 09/28/1999 | US5960011 Viterbi decoder |
| 09/28/1999 | US5959558 Method and an arrangement relating to communication systems |
| 09/28/1999 | US5958080 Method and apparatus for detecting and recovering from errors occurring in a transmission of digital information |
| 09/23/1999 | WO1999048216A1 Error correcting device and optical disk reader comprising same |
| 09/23/1999 | WO1999048097A1 Reed-solomon decoding of data read from dvd or cd supports |
| 09/23/1999 | WO1999035752A3 Method and apparatus for decoding punctured trellis code modulated data |
| 09/22/1999 | EP0944201A2 System and method for measuring channel quality in a communication system |
| 09/22/1999 | EP0944199A1 Data sequence generator, transmitter, information data decoder, receiver, transceiver, data sequence generating method, information data decoding method, and recording medium |
| 09/22/1999 | EP0944177A2 Spread spectrum encoding device and method using data to send as initial values of sequence generator |
| 09/22/1999 | EP0944174A1 Viterbi decoding apparatus and Viterbi decoding method |
| 09/22/1999 | EP0944173A2 Add-compare selection circuit for a Viterbi decoder |
| 09/22/1999 | EP0943182A1 Two-level error correction encoder |
| 09/22/1999 | CN1229554A Multilevel coding with time diversity |
| 09/22/1999 | CN1229232A Error correction device and optical disk reader comprising such device |
| 09/21/1999 | US5956351 Dual error correction code |
| 09/21/1999 | US5956305 Optical disk apparatus capable of simultaneously recording user data and correction codes |
| 09/21/1999 | US5954839 Error protection method for multimedia data |
| 09/21/1999 | US5954836 Method and apparatus for pipelined encoding |
| 09/21/1999 | CA2134230C Method and apparatus for coherent communication in a spread-spectrum communication system |
| 09/16/1999 | WO1999046883A1 Received signal quality determination methods and systems for convolutionally encoded communication channels |
| 09/16/1999 | WO1999046862A1 Technique for finding a starting state for a convolutional feedback encoder |
| 09/16/1999 | WO1999045911A2 Universal reed-solomon coder-decoder |
| 09/16/1999 | WO1999034271A3 A method for encoding multiword information |
| 09/16/1999 | WO1999007076A3 Adaptive channel encoding method and device |
| 09/15/1999 | EP0942561A2 Adaptive step size for channel estimation |
| 09/15/1999 | EP0942421A1 Error correction device and optical disk reader comprising such a device |
| 09/15/1999 | EP0891656B1 Data block convolutional coding device and method, and corresponding decoding method and device |
| 09/15/1999 | CN1228888A Variable length coding with error protection |
| 09/14/1999 | US5953418 Device for transmitting data to multiple receivers |
| 09/14/1999 | US5953376 Probabilistic trellis coded modulation with PCM-derived constellations |
| 09/14/1999 | US5951711 Method and device for determining hamming distance between two multi-bit digital words |
| 09/14/1999 | US5951709 Radio communication system using TDD scheme |
| 09/14/1999 | US5951708 Error correction coding and decoding method, and circuit using said method |
| 09/14/1999 | US5951707 Method for use in a communications system |
| 09/14/1999 | CA2140484C Method and apparatus for communicating multilevel modulated data using concatenated coding |
| 09/10/1999 | WO1999045660A1 Rate control device and method for cdma communication system |
| 09/08/1999 | CN1228214A Methods for generating side information in presence of time-selective fading |
| 09/08/1999 | CN1228176A Data de-rotator and de-interleaver |
| 09/07/1999 | US5949831 Method and apparatus for data detection for PRML data channels |
| 09/07/1999 | US5949790 In a wireless data transmission system |
| 09/07/1999 | US5949750 Method and apparatus for recording an information signal with scrambling thereof |
| 09/07/1999 | US5948119 Packet-based fifo |
| 09/07/1999 | US5948118 Error detection code forming method and apparatus |
| 09/07/1999 | US5948117 Modified Reed-Solomon error correction system using (W+i+1)-bit representations of symbols of GF(2w+i) |
| 09/07/1999 | CA2142846C device and method for precoding |
| 09/07/1999 | CA2131535C Method and apparatus of adaptive maximum likelihood sequence estimation using a variable convergence step size |
| 09/02/1999 | WO1999044328A1 Bit synchronizers and methods of synchronizing and calculating error |
| 09/02/1999 | WO1999044295A1 Full and half-rate signal space detection for channels with a time-varying mtr |
| 09/02/1999 | WO1999044294A2 Signal coding |
| 09/02/1999 | WO1999034522A3 A method for encoding multiword information |
| 09/02/1999 | WO1999030462A3 A forward error correction system for packet based real-time media |
| 09/01/1999 | EP0939403A2 High-speed error correcting apparatus with efficient data transfer |
| 09/01/1999 | EP0938781A2 Transmission system with improved reconstruction of missing parts |
| 09/01/1999 | EP0876710B1 Key equation solver circuit and reed-solomon decoder comprising same |
| 09/01/1999 | CN1227682A Method for determining connection quality and a receiver |
| 08/31/1999 | US5946707 Interleaved burst XOR using a single memory pointer |
| 08/31/1999 | US5946361 Viterbi decoding method and circuit with accelerated back-tracing and efficient path metric calculation |
| 08/31/1999 | US5946329 Viterbi decoding method and viterbi decoder |
| 08/31/1999 | US5946328 Method and means for efficient error detection and correction in long byte strings using integrated interleaved Reed-Solomon codewords |
| 08/31/1999 | US5946292 Method and digital receiver for receiving orthogonal frequency-division multiplexed signals |
| 08/31/1999 | US5944851 Method for concealing bit errors in a bit stream of a video |
| 08/31/1999 | US5944850 Digital transmission system and method comprising a punctured product code combined with a quadrature amplitude modulation |
| 08/31/1999 | US5944849 Method and system capable of correcting an error without an increase of hardware |
| 08/31/1999 | US5944848 Error decoding method and apparatus for Reed-Solomon codes |
| 08/31/1999 | US5944844 Method for determining connection quality in a receiver utilizing a Viterbi decoder |
| 08/31/1999 | US5944842 Method and apparatus for data encoding and communication over noisy media |