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WO2008093423A1 - Data signal processing apparatus and method - Google Patents

Data signal processing apparatus and method Download PDF

Info

Publication number
WO2008093423A1
WO2008093423A1 PCT/JP2007/051701 JP2007051701W WO2008093423A1 WO 2008093423 A1 WO2008093423 A1 WO 2008093423A1 JP 2007051701 W JP2007051701 W JP 2007051701W WO 2008093423 A1 WO2008093423 A1 WO 2008093423A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording
code word
bit string
word bit
reproducing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/051701
Other languages
French (fr)
Japanese (ja)
Inventor
Takuya Shiroto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer 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 Pioneer Corp filed Critical Pioneer Corp
Priority to PCT/JP2007/051701 priority Critical patent/WO2008093423A1/en
Priority to JP2008555992A priority patent/JPWO2008093423A1/en
Publication of WO2008093423A1 publication Critical patent/WO2008093423A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded 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
    • H03M13/03—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
    • H03M13/61—Aspects and characteristics of methods and arrangements for error correction or error detection, not provided for otherwise
    • H03M13/615—Use of computational or mathematical techniques
    • H03M13/616—Matrix operations, especially for generator matrices or check matrices, e.g. column or row permutations
    • 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
    • H03M13/63—Joint error correction and other techniques
    • H03M13/635—Error control coding in combination with rate matching
    • H03M13/6362—Error control coding in combination with rate matching by puncturing
    • H03M13/6368—Error control coding in combination with rate matching by puncturing using rate compatible puncturing or complementary puncturing
    • H03M13/6393—Rate compatible low-density parity check [LDPC] codes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0065—Recording, reproducing or erasing by using optical interference patterns, e.g. holograms

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • Computing Systems (AREA)
  • Error Detection And Correction (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

A data signal processing apparatus comprises a coding means (110) for coding data in an error correcting coding system whose error correcting capability in decoding a code word bit string after the coding has difference for each code word bit string to generate the code word bit string and recording/reproducing means (140,150) for recording/reproducing a code word bit string generated by a recording/reproducing system in which error occurrence probability or signal-to-noise ratio in performing recording/reproducing varies with at least one of the place, order, and direction to be recorded/reproduced. The recording/reproducing means records/reproduces the generated code word bit string so that high and low levels of the error correcting capability and the size of the error occurrence probability or the signal-to-noise ratio have a predetermined correspondence relation. This makes it possible to record/reproduce the data so as to perform an efficient error correction.
PCT/JP2007/051701 2007-02-01 2007-02-01 Data signal processing apparatus and method Ceased WO2008093423A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/051701 WO2008093423A1 (en) 2007-02-01 2007-02-01 Data signal processing apparatus and method
JP2008555992A JPWO2008093423A1 (en) 2007-02-01 2007-02-01 Data signal processing apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/051701 WO2008093423A1 (en) 2007-02-01 2007-02-01 Data signal processing apparatus and method

Publications (1)

Publication Number Publication Date
WO2008093423A1 true WO2008093423A1 (en) 2008-08-07

Family

ID=39673743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/051701 Ceased WO2008093423A1 (en) 2007-02-01 2007-02-01 Data signal processing apparatus and method

Country Status (2)

Country Link
JP (1) JPWO2008093423A1 (en)
WO (1) WO2008093423A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5719998B2 (en) * 2010-02-10 2015-05-20 パナソニックＩｐマネジメント株式会社 Transmission device, reception device, transmission method, and reception method
CN115149965A (en) * 2021-03-31 2022-10-04 华为技术有限公司 Low density parity check LDPC decoder, decoding method and related equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005039585A (en) * 2003-07-16 2005-02-10 Science Univ Of Tokyo Information transmission method and apparatus
JP2005141879A (en) * 2003-11-10 2005-06-02 Sony Corp Hologram reproducing device, hologram reproducing method and hologram recording medium
JP2005277784A (en) * 2004-03-24 2005-10-06 Toshiba Corp Coded bit mapping method using LPC code, transmitting apparatus, and receiving apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101042747B1 (en) * 2005-06-21 2011-06-20 삼성전자주식회사 Apparatus and method for transmitting / receiving data in communication system using structured low density parity check code

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005039585A (en) * 2003-07-16 2005-02-10 Science Univ Of Tokyo Information transmission method and apparatus
JP2005141879A (en) * 2003-11-10 2005-06-02 Sony Corp Hologram reproducing device, hologram reproducing method and hologram recording medium
JP2005277784A (en) * 2004-03-24 2005-10-06 Toshiba Corp Coded bit mapping method using LPC code, transmitting apparatus, and receiving apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5719998B2 (en) * 2010-02-10 2015-05-20 パナソニックＩｐマネジメント株式会社 Transmission device, reception device, transmission method, and reception method
US9077377B2 (en) 2010-02-10 2015-07-07 Panasonic Intellectual Property Management Co., Ltd. Transmission device and reception device for communication in an environment with strong external noise, and transmission method and reception method for the same
US10097205B2 (en) 2010-02-10 2018-10-09 Sun Patent Trust Transmission device, reception device, transmission method, and reception method for suppressing the degrading of decoding performance due to combinations of eliminations at the bit level
CN115149965A (en) * 2021-03-31 2022-10-04 华为技术有限公司 Low density parity check LDPC decoder, decoding method and related equipment

Also Published As

Publication number Publication date
JPWO2008093423A1 (en) 2010-05-20

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