JP4946844B2 - 記録再生装置および記録再生方法 - Google Patents

記録再生装置および記録再生方法 Download PDF

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Publication number
JP4946844B2
JP4946844B2 JP2007322159A JP2007322159A JP4946844B2 JP 4946844 B2 JP4946844 B2 JP 4946844B2 JP 2007322159 A JP2007322159 A JP 2007322159A JP 2007322159 A JP2007322159 A JP 2007322159A JP 4946844 B2 JP4946844 B2 JP 4946844B2
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Japan
Prior art keywords
reproduction data
decoding
data
block
recording
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Expired - Fee Related
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JP2007322159A
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English (en)
Japanese (ja)
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JP2009146494A5 (https=
JP2009146494A (ja
Inventor
努 原田
良彦 出岡
久門 平坂
俊彦 廣瀬
寿幸 廣瀬
修 中村
明 伊藤
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Sony Corp
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Sony Corp
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Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2007322159A priority Critical patent/JP4946844B2/ja
Priority to US12/270,004 priority patent/US8266502B2/en
Priority to CN2008101786694A priority patent/CN101458947B/zh
Publication of JP2009146494A publication Critical patent/JP2009146494A/ja
Publication of JP2009146494A5 publication Critical patent/JP2009146494A5/ja
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    • 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
    • G11B20/1879—Direct read-after-write methods
    • 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
    • H03M13/1105—Decoding
    • H03M13/1128—Judging correct decoding and iterative stopping criteria other than syndrome check and upper limit for decoding iterations
    • 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
    • G11B20/1816—Testing
    • G11B2020/1823—Testing wherein a flag is set when errors are detected or qualified
    • 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
    • G11B20/1816—Testing
    • G11B2020/183—Testing wherein at least one additional attempt is made to read or write the data when a first attempt is unsuccessful
    • 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
    • G11B2020/185—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information using an low density parity check [LDPC] code
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G11B2220/91—Helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Error Detection And Correction (AREA)
JP2007322159A 2007-12-13 2007-12-13 記録再生装置および記録再生方法 Expired - Fee Related JP4946844B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007322159A JP4946844B2 (ja) 2007-12-13 2007-12-13 記録再生装置および記録再生方法
US12/270,004 US8266502B2 (en) 2007-12-13 2008-11-13 Recording/reproducing apparatus and recording/reproducing method
CN2008101786694A CN101458947B (zh) 2007-12-13 2008-11-27 记录/再现设备和记录/再现方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007322159A JP4946844B2 (ja) 2007-12-13 2007-12-13 記録再生装置および記録再生方法

Publications (3)

Publication Number Publication Date
JP2009146494A JP2009146494A (ja) 2009-07-02
JP2009146494A5 JP2009146494A5 (https=) 2010-04-30
JP4946844B2 true JP4946844B2 (ja) 2012-06-06

Family

ID=40754911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007322159A Expired - Fee Related JP4946844B2 (ja) 2007-12-13 2007-12-13 記録再生装置および記録再生方法

Country Status (3)

Country Link
US (1) US8266502B2 (https=)
JP (1) JP4946844B2 (https=)
CN (1) CN101458947B (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4353295B2 (ja) * 2007-10-03 2009-10-28 ソニー株式会社 再生装置および再生方法
WO2010001502A1 (ja) * 2008-06-30 2010-01-07 国立大学法人愛媛大学 復号化装置、垂直磁気記録再生装置、受信装置、および、復号化方法
CN101997652B (zh) * 2009-08-14 2014-09-10 中兴通讯股份有限公司 基于ldpc-mimo通信系统的接收检测方法和装置
US8316281B2 (en) * 2009-11-03 2012-11-20 Oracle America, Inc. High density tape drive multi-channel low density parity check coding control
US8495464B2 (en) * 2010-06-28 2013-07-23 Intel Corporation Reliability support in memory systems without error correcting code support
JP6344348B2 (ja) * 2015-09-14 2018-06-20 株式会社デンソー バッファ制御装置、通信ノード、及び中継装置
JP2018160302A (ja) * 2017-03-23 2018-10-11 株式会社東芝 ストレージ装置及びコントローラ
CN107704372A (zh) * 2017-10-12 2018-02-16 郑州云海信息技术有限公司 一种验证存储系统中逻辑卷数据销毁有效性的方法及系统
KR102467072B1 (ko) 2017-10-26 2022-11-11 삼성전자주식회사 반복 연산 과정을 이용하여 디코딩을 수행하는 디코더 및 이를 이용한 스토리지 장치
US11211094B1 (en) * 2021-05-11 2021-12-28 Western Digital Technologies, Inc. Data storage device duplicating an ECC sub-block in downstream ECC super-block
US12373130B2 (en) * 2023-02-02 2025-07-29 Western Digital Technologies, Inc. Global variance parameter based on mutual information in a data channel
US12374365B2 (en) 2023-02-03 2025-07-29 Western Digital Technologies, Inc. Data storage device configuration using mutual information

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3555664B2 (ja) * 1993-09-29 2004-08-18 ソニー株式会社 データ再生方法及びデータ再生装置
JPH08249832A (ja) * 1995-03-10 1996-09-27 Sony Corp ディジタル信号記録／再生装置
JP2000163708A (ja) * 1998-11-30 2000-06-16 Victor Co Of Japan Ltd データ記録再生装置
JP2001307434A (ja) * 2000-04-20 2001-11-02 Seiko Epson Corp ディジタル信号再生方法と装置及びそれに用いる半導体装置
JP2003100035A (ja) * 2001-09-25 2003-04-04 Matsushita Electric Ind Co Ltd データ記録装置
JP3829741B2 (ja) * 2002-03-19 2006-10-04 ソニー株式会社 記録媒体、記録方法、記録装置
JP4132934B2 (ja) * 2002-04-12 2008-08-13 株式会社ソニー・ディスクアンドデジタルソリューションズ 再生専用光記録媒体および光記録方法
AU2002354137A1 (en) * 2002-11-29 2004-06-23 Fujitsu Limited Data recording and reproducing device, and data recording and reproducing method
EP1437888A3 (en) * 2003-01-06 2007-11-14 Samsung Electronics Co., Ltd. Video recording and reproducing apparatus
JP2005166089A (ja) * 2003-11-28 2005-06-23 Toshiba Corp ディスク記憶装置、データ再生装置及びデータ再生方法
JP3972911B2 (ja) * 2004-02-24 2007-09-05 ソニー株式会社 データ処理装置および方法、ならびに、再生装置および方法
US20050240856A1 (en) * 2004-04-06 2005-10-27 Samsung Electronics Co., Ltd. Hologram recording and reproducing apparatus and hologram reproducing apparatus
JP2007087530A (ja) * 2005-09-22 2007-04-05 Rohm Co Ltd 信号復号方法、信号復号装置および信号記憶システム
JP2007087529A (ja) * 2005-09-22 2007-04-05 Rohm Co Ltd 信号復号装置、信号復号方法、および記憶システム
KR20070080989A (ko) * 2006-02-09 2007-08-14 삼성전자주식회사 통신 시스템에서 반복 복호 장치 및 방법
KR101266594B1 (ko) * 2006-08-05 2013-05-22 벤호프 게엠베하 엘엘씨 솔리드 스테이트 스토리지 소자 및 방법
JP2008065969A (ja) * 2006-08-09 2008-03-21 Fujitsu Ltd 符号化装置、復号化装置、符号化方法、復号化方法および記憶装置
JP4791912B2 (ja) * 2006-08-31 2011-10-12 株式会社東芝 不揮発性半導体記憶装置及び不揮発性記憶システム
US7979775B2 (en) * 2006-10-30 2011-07-12 Motorola Mobility, Inc. Turbo interference suppression in communication systems
US7765453B2 (en) * 2006-12-13 2010-07-27 Nortel Networks Limited Early termination controller for iterative FEC decoders and method therefor

Also Published As

Publication number Publication date
CN101458947B (zh) 2011-08-10
CN101458947A (zh) 2009-06-17
US8266502B2 (en) 2012-09-11
JP2009146494A (ja) 2009-07-02
US20090158125A1 (en) 2009-06-18

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