HK1041373A1 - Turbo產品代碼譯碼器 - Google Patents

Turbo產品代碼譯碼器

Info

Publication number
HK1041373A1
HK1041373A1 HK02100621.5A HK02100621A HK1041373A1 HK 1041373 A1 HK1041373 A1 HK 1041373A1 HK 02100621 A HK02100621 A HK 02100621A HK 1041373 A1 HK1041373 A1 HK 1041373A1
Authority
HK
Hong Kong
Prior art keywords
product code
code decoder
hard decision
decision vector
turbo product
Prior art date
Application number
HK02100621.5A
Other languages
English (en)
Inventor
Hewitt Eric
Original Assignee
Comtech Telecommunications Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Comtech Telecommunications Corp filed Critical Comtech Telecommunications Corp
Publication of HK1041373A1 publication Critical patent/HK1041373A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957—Turbo codes and decoding
    • H03M13/296—Particular turbo code structure
    • H03M13/2963—Turbo-block codes, i.e. turbo codes based on block codes, e.g. turbo decoding of product codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2906—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes
    • H03M13/2918—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using block codes with error correction codes in three or more dimensions, e.g. 3-dimensional product code where the bits are arranged in a cube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/45—Soft decoding, i.e. using symbol reliability information
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
    • H03M13/6583—Normalization other than scaling, e.g. by subtraction
    • H03M13/6586—Modulo/modular normalization, e.g. 2's complement modulo implementations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13—Linear codes
    • H03M13/19—Single error correction without using particular properties of the cyclic codes, e.g. Hamming codes, extended or generalised Hamming codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—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
    • H03M13/61—Aspects and characteristics of methods and arrangements for error correction or error detection, not provided for otherwise
    • H03M13/618—Shortening and extension of codes
HK02100621.5A 1998-09-28 2002-01-25 Turbo產品代碼譯碼器 HK1041373A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10216898P 1998-09-28 1998-09-28
PCT/US1999/022441 WO2000019616A2 (en) 1998-09-28 1999-09-27 Turbo product code decoder

Publications (1)

Publication Number Publication Date
HK1041373A1 true HK1041373A1 (zh) 2002-07-05

Family

ID=22288467

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02100621.5A HK1041373A1 (zh) 1998-09-28 2002-01-25 Turbo產品代碼譯碼器

Country Status (8)

Country Link
US (2) US6526538B1 (zh)
EP (2) EP1118159B1 (zh)
JP (1) JP2002526965A (zh)
AT (1) ATE270795T1 (zh)
CA (1) CA2344046C (zh)
DE (1) DE69918562D1 (zh)
HK (1) HK1041373A1 (zh)
WO (1) WO2000019616A2 (zh)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526538B1 (en) 1998-09-28 2003-02-25 Comtech Telecommunications Corp. Turbo product code decoder
US7035897B1 (en) 1999-01-15 2006-04-25 California Institute Of Technology Wireless augmented reality communication system
US7016401B1 (en) * 1999-12-22 2006-03-21 Motorola, Inc Method and apparatus for automated correlation of digital modulation impairment
IL133896A0 (en) * 2000-01-06 2001-04-30 Telescicom Ltd Method and system for encoding data for transmission channels
US6810502B2 (en) * 2000-01-28 2004-10-26 Conexant Systems, Inc. Iteractive decoder employing multiple external code error checks to lower the error floor
US7356752B2 (en) * 2000-03-14 2008-04-08 Comtech Telecommunications Corp. Enhanced turbo product codes
WO2001076079A2 (en) * 2000-04-04 2001-10-11 Comtech Telecommunication Corp. Enhanced turbo product code decoder system
US6888897B1 (en) 2000-04-27 2005-05-03 Marvell International Ltd. Multi-mode iterative detector
US7184486B1 (en) 2000-04-27 2007-02-27 Marvell International Ltd. LDPC encoder and decoder and method thereof
US6728927B2 (en) * 2000-05-26 2004-04-27 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre Method and system for high-spread high-distance interleaving for turbo-codes
US7000177B1 (en) 2000-06-28 2006-02-14 Marvell International Ltd. Parity check matrix and method of forming thereof
US7072417B1 (en) 2000-06-28 2006-07-04 Marvell International Ltd. LDPC encoder and method thereof
US6965652B1 (en) 2000-06-28 2005-11-15 Marvell International Ltd. Address generator for LDPC encoder and decoder and method thereof
US7099411B1 (en) 2000-10-12 2006-08-29 Marvell International Ltd. Soft-output decoding method and apparatus for controlled intersymbol interference channels
US7120213B2 (en) * 2000-10-27 2006-10-10 Texas Instruments Incorporated Using SISO decoder feedback to produce symbol probabilities for use in wireless communications that utilize single encoder turbo coding and transmit diversity
FR2816773B1 (fr) * 2000-11-10 2004-11-26 France Telecom Module, dispositif et procede de decodage a haut debit, d'un code concatene
JP3540224B2 (ja) * 2001-03-06 2004-07-07 シャープ株式会社 ターボ復号器とターボ復号方法及びその方法を記憶した記憶媒体
US20030033570A1 (en) * 2001-05-09 2003-02-13 Khannanov Roman R. Method and apparatus for encoding and decoding low density parity check codes and low density turbo product codes
US7389463B2 (en) * 2001-05-29 2008-06-17 Thomson Licensing Hierarchical block coding for a packet-based communications system
US6633856B2 (en) * 2001-06-15 2003-10-14 Flarion Technologies, Inc. Methods and apparatus for decoding LDPC codes
US7673223B2 (en) 2001-06-15 2010-03-02 Qualcomm Incorporated Node processors for use in parity check decoders
US6775801B2 (en) * 2001-09-26 2004-08-10 Texas Instruments Incorporated Turbo decoder extrinsic normalization
US6883131B2 (en) * 2001-09-28 2005-04-19 Sun Microsystems, Inc. XOR processing incorporating error correction code data protection
AU2002334863A1 (en) * 2001-10-04 2003-04-14 Comtech Aha Corporation Method of decoding a turbo product code utilizing a scalable and hardware efficient forward error correction decoder
US20030093740A1 (en) * 2001-10-19 2003-05-15 Nebojsa Stojanovic Iterative hard decoding method for multidimensional SPC
US20030093741A1 (en) * 2001-11-14 2003-05-15 Cenk Argon Parallel decoder for product codes
FR2834146A1 (fr) * 2001-12-20 2003-06-27 St Microelectronics Sa Turbo-decodeur compact a haute efficacite
JP3889286B2 (ja) * 2002-01-31 2007-03-07 三菱電機株式会社 復号方法、復号装置及びディジタル伝送システム
MXPA04012474A (es) * 2002-06-21 2005-09-20 Thomson Licensing Sa Metodo para correccion de error delantero.
AU2002320749A1 (en) * 2002-07-01 2004-01-19 Linkair Communications, Inc. Iterative decoding method and apparatus for product code based on adjoint formula
KR100703307B1 (ko) * 2002-08-06 2007-04-03 삼성전자주식회사 터보 복호화 장치 및 방법
US6961888B2 (en) 2002-08-20 2005-11-01 Flarion Technologies, Inc. Methods and apparatus for encoding LDPC codes
US7100101B1 (en) * 2002-11-08 2006-08-29 Xilinx, Inc. Method and apparatus for concatenated and interleaved turbo product code encoding and decoding
US7296212B1 (en) * 2002-11-15 2007-11-13 Broadwing Corporation Multi-dimensional irregular array codes and methods for forward error correction, and apparatuses and systems employing such codes and methods
US20040157626A1 (en) * 2003-02-10 2004-08-12 Vincent Park Paging methods and apparatus
CN100576168C (zh) * 2003-02-26 2009-12-30 高通股份有限公司 用于迭代解码的软信息比例变换
US6957375B2 (en) * 2003-02-26 2005-10-18 Flarion Technologies, Inc. Method and apparatus for performing low-density parity-check (LDPC) code operations using a multi-level permutation
US20070234178A1 (en) * 2003-02-26 2007-10-04 Qualcomm Incorporated Soft information scaling for interactive decoding
US6931583B2 (en) * 2003-03-21 2005-08-16 Arraycomm, Inc. Decoding extended error correcting codes using soft information
WO2004088852A1 (ja) * 2003-03-31 2004-10-14 Fujitsu Limited ターボ復号器
US7231557B2 (en) * 2003-04-02 2007-06-12 Qualcomm Incorporated Methods and apparatus for interleaving in a block-coherent communication system
US7434145B2 (en) * 2003-04-02 2008-10-07 Qualcomm Incorporated Extracting soft information in a block-coherent communication system
US8196000B2 (en) * 2003-04-02 2012-06-05 Qualcomm Incorporated Methods and apparatus for interleaving in a block-coherent communication system
US7738736B2 (en) * 2003-05-09 2010-06-15 Inphase Technologies, Inc. Methods and systems for holographic data recovery
IL157885A0 (en) * 2003-09-11 2004-03-28 Bamboo Mediacasting Ltd Iterative forward error correction
US7237181B2 (en) * 2003-12-22 2007-06-26 Qualcomm Incorporated Methods and apparatus for reducing error floors in message passing decoders
US7383484B2 (en) 2004-03-12 2008-06-03 Seagate Technology Llc Cyclic redundancy check based message passing in turbo product code decoding
US7441175B2 (en) 2004-03-12 2008-10-21 Seagate Technology Llc Turbo product code implementation and decoding termination method and apparatus
US7415659B2 (en) * 2004-05-07 2008-08-19 Comtech Aha Corporation SISO decoder
US7415651B2 (en) * 2004-06-02 2008-08-19 Seagate Technology Data communication system with multi-dimensional error-correction product codes
US7395490B2 (en) * 2004-07-21 2008-07-01 Qualcomm Incorporated LDPC decoding methods and apparatus
US7346832B2 (en) * 2004-07-21 2008-03-18 Qualcomm Incorporated LDPC encoding methods and apparatus
US7260762B2 (en) 2004-07-26 2007-08-21 Motorola, Inc. Decoder performance for block product codes
US7310767B2 (en) 2004-07-26 2007-12-18 Motorola, Inc. Decoding block codes
US7127659B2 (en) * 2004-08-02 2006-10-24 Qualcomm Incorporated Memory efficient LDPC decoding methods and apparatus
JP4494238B2 (ja) * 2005-02-03 2010-06-30 株式会社エヌ・ティ・ティ・ドコモ Ｍｉｍｏ多重送信装置およびｍｉｍｏ多重送信方法
US7571369B2 (en) * 2005-02-17 2009-08-04 Samsung Electronics Co., Ltd. Turbo decoder architecture for use in software-defined radio systems
FR2888062A1 (fr) * 2005-07-04 2007-01-05 Groupe Ecoles Telecomm Codeur et turbo decodeur de code produit
US7861131B1 (en) 2005-09-01 2010-12-28 Marvell International Ltd. Tensor product codes containing an iterative code
US20070071139A1 (en) * 2005-09-23 2007-03-29 Guner Arslan Channel decoding using hard and soft decisions
EP1980074A4 (en) * 2006-02-13 2012-12-19 Digital Fountain Inc CONTINUOUS CONTINUOUS CONTINUOUS TRANSMISSION WITH CONCURRENT FLUX AGGREGATION FOR CONTINUOUS CONTROL CALCULATION
US8024645B2 (en) * 2006-06-29 2011-09-20 Motorola Solutions, Inc. Method for error detection in a decoded digital signal stream
CN101449466B (zh) * 2006-08-02 2012-07-04 富士通株式会社 接收装置及其解码方法
US7783952B2 (en) * 2006-09-08 2010-08-24 Motorola, Inc. Method and apparatus for decoding data
US7649965B2 (en) * 2006-09-15 2010-01-19 Applied Micro Circuits Corporation Maximum likelihood channel estimator
US8761144B2 (en) * 2007-06-28 2014-06-24 Telefonaktiebolaget Lm Ericsson (Publ) HS-PDSCH blind decoding
US8259868B1 (en) * 2007-09-25 2012-09-04 University Of Southern California Conditionally cycle-free generalized tanner graphs based decoding
CN101983489B (zh) 2008-03-31 2016-11-09 马维尔国际贸易有限公司 对传输块的多码块进行选择性组合和译码的方法和装置
US8321769B1 (en) 2008-11-06 2012-11-27 Marvell International Ltd. Multi-parity tensor-product code for data channel
US8443267B2 (en) * 2009-04-28 2013-05-14 Lsi Corporation Systems and methods for hard decision assisted decoding
US20110202819A1 (en) * 2010-02-12 2011-08-18 Yuan Lin Configurable Error Correction Encoding and Decoding
EP2579468B1 (en) * 2011-10-05 2020-05-06 Telefonaktiebolaget LM Ericsson (publ) Method and device for decoding a transport block of a communication signal
US9231623B1 (en) * 2013-09-11 2016-01-05 SK Hynix Inc. Chase decoding for turbo-product codes (TPC) using error intersections
US9425952B2 (en) * 2014-03-27 2016-08-23 Samsung Israel Research Corporation Algebraic manipulation detection codes from algebraic curves
GB2525877B (en) 2014-05-07 2016-08-10 Cisco Tech Inc Forward error correction with turbo/non-turbo switching
CN104022786B (zh) * 2014-05-21 2017-09-01 上海宏光经济信息发展中心青岛电子技术部 乘积码译码方法
US9906241B2 (en) * 2014-11-20 2018-02-27 SK Hynix Inc. Apparatus and method for turbo product codes
US9935659B2 (en) * 2015-05-18 2018-04-03 SK Hynix Inc. Performance optimization in soft decoding for turbo product codes
US10200066B2 (en) 2016-03-09 2019-02-05 SK Hynix Inc. Code reconstruction scheme for multiple code rate TPC decoder
KR101858123B1 (ko) * 2017-04-25 2018-05-17 고려대학교 산학협력단 혼합형 반복 복호 방법 및 장치
US10998922B2 (en) * 2017-07-28 2021-05-04 Mitsubishi Electric Research Laboratories, Inc. Turbo product polar coding with hard decision cleaning
JP6957392B2 (ja) * 2018-03-15 2021-11-02 キオクシア株式会社 メモリシステム
KR102118899B1 (ko) * 2019-03-07 2020-06-04 한양대학교 산학협력단 연판정 기반으로 선형 부호를 고속 복호화하는 방법 및 장치
JP2023137091A (ja) 2022-03-17 2023-09-29 キオクシア株式会社 メモリシステムおよびメモリ制御方法

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295218A (en) 1979-06-25 1981-10-13 Regents Of The University Of California Error-correcting coding system
US4763331A (en) 1985-12-11 1988-08-09 Nippon Telegraph And Telephone Corporation Method for decoding error correcting block codes
US4845714A (en) 1987-06-08 1989-07-04 Exabyte Corporation Multiple pass error correction process and apparatus for product codes
US5157671A (en) 1990-05-29 1992-10-20 Space Systems/Loral, Inc. Semi-systolic architecture for decoding error-correcting codes
FR2675968B1 (fr) 1991-04-23 1994-02-04 France Telecom Procede de decodage d'un code convolutif a maximum de vraisemblance et ponderation des decisions, et decodeur correspondant.
FR2675971B1 (fr) 1991-04-23 1993-08-06 France Telecom Procede de codage correcteur d'erreurs a au moins deux codages convolutifs systematiques en parallele, procede de decodage iteratif, module de decodage et decodeur correspondants.
US5574834A (en) 1992-01-09 1996-11-12 Matsushita Graphic Communications Systems, Inc. Image communication system for following a communication procedure to simultaneously transmit image code data
AU5550694A (en) * 1992-11-06 1994-06-08 Pericle Communications Company Adaptive data rate modem
US5457704A (en) * 1993-05-21 1995-10-10 At&T Ipm Corp. Post processing method and apparatus for symbol reliability generation
FR2712760B1 (fr) 1993-11-19 1996-01-26 France Telecom Procédé pour transmettre des bits d'information en appliquant des codes en blocs concaténés.
JP3321976B2 (ja) * 1994-04-01 2002-09-09 富士通株式会社 信号処理装置および信号処理方法
US5559506A (en) 1994-05-04 1996-09-24 Motorola, Inc. Method and apparatus for encoding and decoding a digital radio signal
CA2131242C (en) 1994-08-31 1999-02-16 Masao Ikekawa Apparatus for error-correct decoding in a digital data communications system
US5657354A (en) * 1995-05-15 1997-08-12 Thesling, Iii; William H. Planar approximating method for computing the log-likelihood ratio optimal signal metric of each component code decoder in 8-PSK block coded modulation systems
DE59610391D1 (de) 1995-06-12 2003-06-05 Siemens Ag Verfahren und Codiereinrichtung zur gesicherten Übertragung von Daten mittels Mehrkomponenten-Codierung
DE19526416A1 (de) 1995-07-19 1997-01-23 Siemens Ag Verfahren und Anordnung zur Bestimmung eines adaptiven Abbruchkriteriums beim iterativen Decodieren multidimensional codierter Infomation
US5719884A (en) 1995-07-27 1998-02-17 Hewlett-Packard Company Error correction method and apparatus based on two-dimensional code array with reduced redundancy
US5703911A (en) 1995-08-17 1997-12-30 Chung-Chin Chen Decoding method for trellis codes with large free distances
JP3171772B2 (ja) 1995-08-23 2001-06-04 沖電気工業株式会社 ビタビ復号方法及びビタビ復号装置
US5684811A (en) 1995-09-01 1997-11-04 Motorola, Inc. Method and apparatus for decoding convolutionally encoded information
US5841818A (en) 1996-01-17 1998-11-24 Chung-Chin Chen Decoding method for trellis codes employing a convolutional processor
US5802116A (en) 1996-04-04 1998-09-01 Lucent Technologies Inc. Soft decision Viterbi decoding with large constraint lengths
US5721746A (en) 1996-04-19 1998-02-24 General Electric Company Optimal soft-output decoder for tail-biting trellis codes
US5721745A (en) 1996-04-19 1998-02-24 General Electric Company Parallel concatenated tail-biting convolutional code and decoder therefor
FR2753026B1 (fr) 1996-08-28 1998-11-13 Pyndiah Ramesh Procede de transmission de bits d'information avec codage correcteur d'erreurs, codeur et decodeur pour la mise en oeuvre de ce procede
FR2753025B1 (fr) 1996-08-28 1998-11-13 Pyndiah Ramesh Procede de transmission de bits d'information avec codage correcteur d'erreurs, codeur et decodeur pour la mise en oeuvre de ce procede
US5901182A (en) 1997-03-26 1999-05-04 Sharp Laboratories Of America, Inc. Metric sifting in breadth-first decoding of convolutional coded data
US5930272A (en) 1997-06-10 1999-07-27 Efficient Channel Coding, Inc. Block decoding with soft output information
US5907582A (en) 1997-08-11 1999-05-25 Orbital Sciences Corporation System for turbo-coded satellite digital audio broadcasting
FR2778289B1 (fr) 1998-05-04 2000-06-09 Alsthom Cge Alcatel Decodage iteratif de codes produits
US6526538B1 (en) 1998-09-28 2003-02-25 Comtech Telecommunications Corp. Turbo product code decoder
US6499128B1 (en) 1999-02-18 2002-12-24 Cisco Technology, Inc. Iterated soft-decision decoding of block codes
US6594318B1 (en) * 1999-12-02 2003-07-15 Qualcomm Incorporated Method and apparatus for computing soft decision input metrics to a turbo decoder
US6539367B1 (en) 2000-05-26 2003-03-25 Agere Systems Inc. Methods and apparatus for decoding of general codes on probability dependency graphs
WO2002009300A2 (en) 2000-07-21 2002-01-31 Catena Networks, Inc. Method and system for turbo encoding in adsl
US20020150167A1 (en) 2001-02-17 2002-10-17 Victor Demjanenko Methods and apparatus for configurable or assymetric forward error correction

Also Published As

Publication number Publication date
US20030106012A1 (en) 2003-06-05
ATE270795T1 (de) 2004-07-15
US6763494B2 (en) 2004-07-13
WO2000019616A2 (en) 2000-04-06
US6526538B1 (en) 2003-02-25
EP1443657A1 (en) 2004-08-04
EP1118159B1 (en) 2004-07-07
EP1118159A2 (en) 2001-07-25
DE69918562D1 (de) 2004-08-12
WO2000019616A3 (en) 2000-11-16
CA2344046A1 (en) 2000-04-06
JP2002526965A (ja) 2002-08-20
CA2344046C (en) 2008-02-05

Similar Documents

Publication Publication Date Title
HK1041373A1 (zh) Turbo產品代碼譯碼器
WO2002031983A3 (en) Soft decision maximum likelihood encoder and decoder
JP4975301B2 (ja) 連結された反復型と代数型の符号化
AU2052392A (en) Method and apparatus for communicating digital data using trellis coded qam
WO2001076079A3 (en) Enhanced turbo product code decoder system
EP0333321A2 (en) Even mark modulation coding
CA2273169A1 (en) Variable length decoder and decoding method
CA2167746A1 (en) Multilevel Coding for Fractional Bits
JP2004502264A5 (zh)
TW200711323A (en) Soft decoding method and apparatus, error correction method and apparatus, and soft output method and apparatus
EP1221772A3 (en) Pre-decoder for a turbo decoder, for recovering punctured parity symbols, and a method for recovering a turbo code
KR100276780B1 (ko) 신호 전송 시스템
CA2206688A1 (en) Digital transmission system for encoding and decoding attribute data into error checking symbols of main data, and method therefor
WO2003085842A3 (en) Method for iterative hard-input forward error correction
EP0823787A3 (en) A rate 16/17 ENDEC with independent high/low byte decoding
CA2160913A1 (en) Digital signal encoding method and apparatus, digital signal recording medium, and digital signal decoding method and apparatus
EP0915571A3 (en) A coding/decoding method for high density data recording and reproduction
CA2131242C (en) Apparatus for error-correct decoding in a digital data communications system
EP1197967A3 (en) Data modulation and correction methods
JP2000201085A (ja) 符号化方法および復号方法
EP0880284A3 (en) Error correction in data encoding
EP1137006A3 (en) Recording and/or reproducing data
CA2116069A1 (en) Method and Apparatus for Error-Control Coding in a Digital Data Communications System
DE69901765T2 (de) Turbo-Code Dekodierer
KR970705241A (ko) 가변 블럭 길이 데이타 엔코딩(Encoding Data with Variable Block Lengths)