JP4457041B2 - ベリファイ処理方法及び光ディスク装置 - Google Patents

ベリファイ処理方法及び光ディスク装置 Download PDF

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Publication number
JP4457041B2
JP4457041B2 JP2005147491A JP2005147491A JP4457041B2 JP 4457041 B2 JP4457041 B2 JP 4457041B2 JP 2005147491 A JP2005147491 A JP 2005147491A JP 2005147491 A JP2005147491 A JP 2005147491A JP 4457041 B2 JP4457041 B2 JP 4457041B2
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JP
Japan
Prior art keywords
data
run length
error
error correction
signal
Prior art date
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Expired - Fee Related
Application number
JP2005147491A
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English (en)
Japanese (ja)
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JP2006323954A5 (enExample
JP2006323954A (ja
Inventor
浩行 峯邑
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.)
Hitachi Ltd
Hitachi LG Data Storage Inc
Original Assignee
Hitachi Ltd
Hitachi LG Data Storage Inc
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Filing date
Publication date
Application filed by Hitachi Ltd, Hitachi LG Data Storage Inc filed Critical Hitachi Ltd
Priority to JP2005147491A priority Critical patent/JP4457041B2/ja
Priority to US11/236,742 priority patent/US7738332B2/en
Publication of JP2006323954A publication Critical patent/JP2006323954A/ja
Publication of JP2006323954A5 publication Critical patent/JP2006323954A5/ja
Application granted granted Critical
Publication of JP4457041B2 publication Critical patent/JP4457041B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • G11B7/0045—Recording
    • G11B7/00458—Verification, i.e. checking data during or after recording
    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G11B20/10287—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors
    • G11B20/10296—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors using the Viterbi algorithm
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • 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
    • G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
    • G11B2020/10981—Recording or reproducing data when the data rate or the relative speed between record carrier and transducer is variable

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP2005147491A 2005-05-20 2005-05-20 ベリファイ処理方法及び光ディスク装置 Expired - Fee Related JP4457041B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005147491A JP4457041B2 (ja) 2005-05-20 2005-05-20 ベリファイ処理方法及び光ディスク装置
US11/236,742 US7738332B2 (en) 2005-05-20 2005-09-28 Reproduction method, optical disk drive, and IC circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005147491A JP4457041B2 (ja) 2005-05-20 2005-05-20 ベリファイ処理方法及び光ディスク装置

Publications (3)

Publication Number Publication Date
JP2006323954A JP2006323954A (ja) 2006-11-30
JP2006323954A5 JP2006323954A5 (enExample) 2008-03-06
JP4457041B2 true JP4457041B2 (ja) 2010-04-28

Family

ID=37448200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005147491A Expired - Fee Related JP4457041B2 (ja) 2005-05-20 2005-05-20 ベリファイ処理方法及び光ディスク装置

Country Status (2)

Country Link
US (1) US7738332B2 (enExample)
JP (1) JP4457041B2 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921224B1 (ko) * 2007-02-05 2009-10-12 다이요 유덴 가부시키가이샤 광디스크 기록 재생 시스템의 기록 조건 조정방법,광디스크 기록 재생장치 및 광디스크
US7747903B2 (en) * 2007-07-09 2010-06-29 Micron Technology, Inc. Error correction for memory
JP2009123289A (ja) * 2007-11-15 2009-06-04 Hitachi Ltd オフセット補償器及びそれを用いた光ディスクドライブ
FR2933792A1 (fr) * 2008-07-08 2010-01-15 Commissariat Energie Atomique Procede de construction d'un metamodele de simulation de donnees techniques
JP5136349B2 (ja) * 2008-10-10 2013-02-06 ティアック株式会社 光ディスク検査装置および検査方法
US8493509B2 (en) * 2011-06-14 2013-07-23 Sigear Europe Sarl Digital video formatting scheme for analog format video signals using adaptive filtering
US9768988B1 (en) * 2012-12-20 2017-09-19 Seagate Technology Llc Jointly optimizing signal equalization and bit detection in a read channel
FR3034274B1 (fr) * 2015-03-27 2017-03-24 Stmicroelectronics Rousset Procede de traitement d'un signal analogique issu d'un canal de transmission, en particulier un signal vehicule par courant porteur en ligne
JP6836340B2 (ja) * 2015-09-29 2021-02-24 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 不正検知電子制御ユニット、車載ネットワークシステム及び通信方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6318523A (ja) 1986-07-11 1988-01-26 Ricoh Co Ltd 追記型光デイスクの欠陥検査方式
EP0758784A3 (en) 1995-08-16 1998-06-03 Nikon Corporation Information regenerating apparatus
JPH0955030A (ja) 1995-08-16 1997-02-25 Nikon Corp 情報記録再生装置
JPH11149679A (ja) 1997-11-18 1999-06-02 Sony Corp 光ディスク記録再生装置及び光ディスク記録の実証方法
JPH11296987A (ja) 1998-04-02 1999-10-29 Sony Corp 基準振幅レベル更新回路、適応型ビタビ復号化装置及び記録再生制御装置
JP2002298514A (ja) 2001-04-02 2002-10-11 Sharp Corp 光ディスク装置
JP2003115110A (ja) * 2001-08-01 2003-04-18 Yamaha Corp レーザパワー制御方法、光ディスク記録装置および光ディスク
JP4142537B2 (ja) * 2003-09-19 2008-09-03 松下電器産業株式会社 光ディスク装置
JP4265530B2 (ja) 2004-12-02 2009-05-20 ソニー株式会社 ディスク再生装置及びディスク再生方法、並びにコンピュータ・プログラム、並びにコンピュータ・プログラム

Also Published As

Publication number Publication date
US7738332B2 (en) 2010-06-15
JP2006323954A (ja) 2006-11-30
US20060262687A1 (en) 2006-11-23

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