ATE362675T1 - Verfahren und system für die generierung von low density parity check (ldpc) codes - Google Patents

Verfahren und system für die generierung von low density parity check (ldpc) codes

Info

Publication number
ATE362675T1
ATE362675T1 AT03254308T AT03254308T ATE362675T1 AT E362675 T1 ATE362675 T1 AT E362675T1 AT 03254308 T AT03254308 T AT 03254308T AT 03254308 T AT03254308 T AT 03254308T AT E362675 T1 ATE362675 T1 AT E362675T1
Authority
AT
Austria
Prior art keywords
parity check
nodes
ldpc
codes
groups
Prior art date
Application number
AT03254308T
Other languages
English (en)
Inventor
Mustafa Eroz
Feng-Wen Sun
Lin-Nan Lee
Original Assignee
Directv Group Inc
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
Priority claimed from US10/353,230 external-priority patent/US20040019845A1/en
Application filed by Directv Group Inc filed Critical Directv Group Inc
Application granted granted Critical
Publication of ATE362675T1 publication Critical patent/ATE362675T1/de

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
    • H03M13/03—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
    • H03M13/11—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 using multiple parity bits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • 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
    • H03M13/11—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 using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] 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
    • H03M13/03—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
    • H03M13/11—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 using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105—Decoding
    • H03M13/1111—Soft-decision decoding, e.g. by means of message passing or belief propagation algorithms
    • 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
    • H03M13/11—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 using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148—Structural properties of the code parity-check or generator matrix
    • H03M13/118—Parity check matrix structured for simplifying encoding, e.g. by having a triangular or an approximate triangular structure
    • 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
    • H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H03M13/151—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials
    • H03M13/152—Bose-Chaudhuri-Hocquenghem [BCH] 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/255—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with Low Density Parity Check [LDPC] 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
    • H03M13/2927—Decoding strategies
    • H03M13/293—Decoding strategies with erasure setting
    • 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
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • H03M13/356—Unequal error protection [UEP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/007—Unequal error protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
AT03254308T 2002-07-26 2003-07-07 Verfahren und system für die generierung von low density parity check (ldpc) codes ATE362675T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39876002P 2002-07-26 2002-07-26
US10/353,230 US20040019845A1 (en) 2002-07-26 2003-01-28 Method and system for generating low density parity check codes

Publications (1)

Publication Number Publication Date
ATE362675T1 true ATE362675T1 (de) 2007-06-15

Family

ID=30002875

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03254308T ATE362675T1 (de) 2002-07-26 2003-07-07 Verfahren und system für die generierung von low density parity check (ldpc) codes

Country Status (8)

Country Link
EP (1) EP1385270B1 (de)
JP (2) JP4422436B2 (de)
KR (1) KR100543154B1 (de)
CN (1) CN1481130A (de)
AT (1) ATE362675T1 (de)
DE (1) DE60313832T2 (de)
DK (1) DK1385270T3 (de)
ES (1) ES2285049T3 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7234098B2 (en) * 2003-10-27 2007-06-19 The Directv Group, Inc. Method and apparatus for providing reduced memory low density parity check (LDPC) codes
KR20050052184A (ko) * 2003-11-29 2005-06-02 삼성전자주식회사 저밀도 패리티 검사 부호화를 위한 인터리빙 방법
CN1310433C (zh) * 2004-03-29 2007-04-11 上海交通大学 采用分层低密度校验码的信道编码方法
US7831883B2 (en) * 2004-04-02 2010-11-09 Nortel Networks Limited LDPC encoders, decoders, systems and methods
KR100540663B1 (ko) * 2004-04-19 2006-01-10 삼성전자주식회사 저밀도 패리티 체크 코딩의 패리티 체크 행렬 변환 방법
US7171603B2 (en) 2004-05-06 2007-01-30 Motorola, Inc. Method and apparatus for encoding and decoding data
KR20050118056A (ko) * 2004-05-12 2005-12-15 삼성전자주식회사 다양한 부호율을 갖는 Ｂｌｏｃｋ ＬＤＰＣ 부호를 이용한이동 통신 시스템에서의 채널부호화 복호화 방법 및 장치
WO2006011744A2 (en) * 2004-07-27 2006-02-02 Lg Electronics Inc. Method of encoding and decoding using low density parity check code
WO2006016769A1 (en) * 2004-08-10 2006-02-16 Samsung Electronics Co., Ltd. Apparatus and method for encoding and decoding a block low density parity check code
DE602005025896D1 (de) * 2004-08-13 2011-02-24 Dtvg Licensing Inc Codeentwurfs- und implementierungsverbesserungen für wenig dichte paritätsprüfcodes für kanäle mit mehreren eingängen und mehreren ausgängen
EP1800408A1 (de) * 2004-10-01 2007-06-27 Thomson Licensing Niederdichte-paritätsprüfungs-(ldpc-)decoder
KR100846869B1 (ko) 2004-12-16 2008-07-16 한국전자통신연구원 저 복잡도 ｌｄｐｃ복호 장치 및 그 방법
US7617439B2 (en) * 2005-01-10 2009-11-10 Broadcom Corporation Algebraic construction of LDPC (Low Density Parity Check) codes with corresponding parity check matrix having CSI (Cyclic Shifted Identity) sub-matrices
CN100414841C (zh) * 2005-05-11 2008-08-27 电子科技大学 一种ldpc编码的实现方法
KR100727316B1 (ko) * 2005-06-01 2007-06-12 삼성전자주식회사 저밀도채리티체크 채널 디코딩 방법 및 장치
CN100424999C (zh) * 2005-06-06 2008-10-08 重庆市成鑫机电制造有限公司 逐条添加边算法的多进制低密度奇偶校验码编译码方法
JP4808722B2 (ja) * 2005-09-06 2011-11-02 Ｋｄｄｉ株式会社 データ伝送システム及びデータ伝送方法
CN100438394C (zh) * 2006-01-12 2008-11-26 北京大学 非规则置换矩阵ldpc码的构造方法及装置
CN101005333B (zh) * 2006-01-17 2010-05-12 华为技术有限公司 低密度奇偶校验码编码方法
KR100899738B1 (ko) * 2006-02-02 2009-05-27 삼성전자주식회사 노드 메모리 기반의 ｌｄｐｃ 복호기 및 복호방법
CN100546205C (zh) * 2006-04-29 2009-09-30 北京泰美世纪科技有限公司 构造低密度奇偶校验码的方法、译码方法及其传输系统
WO2007145491A1 (en) * 2006-06-15 2007-12-21 Samsung Electronics Co., Ltd. Apparatus and method of encoding/decoding block low density parity check codes in a communication system
KR101154995B1 (ko) * 2006-07-14 2012-06-15 엘지전자 주식회사 Ｌｄｐｃ 부호화를 수행하는 방법
JP4603518B2 (ja) * 2006-07-27 2010-12-22 日本放送協会 符号化装置及び復号化装置
US8230299B2 (en) 2006-09-18 2012-07-24 Availink, Inc. Interleaving scheme for an LDPC coded QPSK/8PSK system
WO2008034291A1 (en) * 2006-09-18 2008-03-27 Ming Yang An interleaving scheme for an ldpc coded qpsk/8psk system
CN101127581B (zh) * 2007-09-07 2010-09-08 普天信息技术研究院有限公司 一种ldpc编码调制的映射及逆映射方法和设备
KR101431268B1 (ko) 2007-12-14 2014-08-20 삼성전자주식회사 직렬 부호화를 위한 저밀도 패리티 검사 부호의 생성 장치및 방법
CN101459430B (zh) * 2007-12-14 2010-12-08 中兴通讯股份有限公司 低密度生成矩阵码的编码方法及装置
WO2010090374A1 (en) * 2009-02-06 2010-08-12 Lg Electronics Inc. Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal
US8464123B2 (en) 2009-05-07 2013-06-11 Ramot At Tel Aviv University Ltd. Matrix structure for block encoding
CN102460977A (zh) 2009-05-27 2012-05-16 诺沃尔赛特有限公司 具有迭代调度的ldpc码迭代解码
CN102386995A (zh) * 2010-09-01 2012-03-21 国家广播电影电视总局广播科学研究院 低密度奇偶校验码校验矩阵构造方法及装置
US9264182B2 (en) 2012-09-13 2016-02-16 Novelsat Ltd. Iterative receiver loop
MX394364B (es) * 2015-02-25 2025-03-24 Samsung Electronics Co Ltd Transmisor y metodo para generar paridad adicional del mismo
WO2019003301A1 (ja) * 2017-06-27 2019-01-03 三菱電機株式会社 尤度生成装置
CN108462496B (zh) * 2018-04-24 2021-04-02 成都吉纬科技有限公司 一种基于随机比特流更新的ldpc译码器
CN108880563A (zh) * 2018-06-14 2018-11-23 东南大学 一种ldpc码的改进编码方法及系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2266107T3 (es) * 2001-01-16 2007-03-01 Koninklijke Philips Electronics N.V. Mapeo por modulacion codificada de entrelazado de bits (bicm).
EP1379001A3 (de) * 2002-07-03 2004-03-10 Hughes Electronics Corporation Verfahren und System für die Decodierung von Low Density Parity Check (LDPC) Codes

Also Published As

Publication number Publication date
DE60313832D1 (de) 2007-06-28
EP1385270A3 (de) 2004-02-04
DE60313832T2 (de) 2008-01-24
CN1481130A (zh) 2004-03-10
EP1385270B1 (de) 2007-05-16
KR20040010116A (ko) 2004-01-31
JP2010050994A (ja) 2010-03-04
EP1385270A2 (de) 2004-01-28
JP2004064756A (ja) 2004-02-26
ES2285049T3 (es) 2007-11-16
KR100543154B1 (ko) 2006-01-20
JP4422436B2 (ja) 2010-02-24
DK1385270T3 (da) 2007-09-24

Similar Documents

Publication Publication Date Title
DE60313832D1 (de) Verfahren und System für die Generierung von Low Density Parity Check (LDPC) Codes
CA2345237A1 (en) Information additive code generator and decoder for communication systems
US5390198A (en) Soft decision viterbi decoder for M-ary convolutional codes
Conan The weight spectra of some short low-rate convolutional codes
EP3639374B1 (de) Kodierung und dekodierung eines polarkodes mit niedriger latenz durch zusammenfassung von stufen des polarkodegraphs
Zhang et al. An efficient embedder for BCH coding for steganography
DE60001370D1 (de) Verfahren und vorrichtung zur erkennung von doppelbitfehlern und korrektur von fehlern durch bauelementfehler verursacht
WO2004034589A3 (en) Systematic encoding and decoding of chain reaction codes
BR9906648A (pt) Processo e dispositivo para codificar e decodificar informação de múltiplas palavras e portador de armazenamento unitário
WO2004003750A3 (en) Error detection/correction code which detects component failure and which provides single bit error correction upon such detection
UA89217C2 (ru) Анализатор для множества потоков данных в системе связи
US4691319A (en) Method and system for detecting a predetermined number of unidirectional errors
US5594742A (en) Bidirectional trellis coding
CN100456640C (zh) 调制和解调方法与装置、信息传输方法和装置
CN102543182B (zh) 随机化电路、存储器控制单元、存储器、通信系统及方法
Bergmann et al. Half weight block codes for optical communications
CN107094050B (zh) 处理数字信号的装置和方法
Li et al. Optimal-repair-cost MDS array codes for a class of heterogeneous distributed storage systems
KR970024634A (ko) 주기적 여유 코드를 이용한 오류검출회로
KR102109589B1 (ko) 고속직렬인터페이스용 송수신 오류 정정기법이 포함된 오버헤드최소화 코딩 기법과 하드웨어 구현 방법
CN106098100B (zh) 一种otp rom的单向比特错误纠正方法
CN119602909B (zh) 基于多径信道下短码rm编码的方法、设备、介质及程序产品
RU29816U1 (ru) Кодирующее устройство помехоустойчивого кода
CN115833993B (zh) 一种面向下一代光纤通信标准的oFEC译码系统
RU42143U1 (ru) Декодирующее устройство помехоустойчивого кода

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties