DE69823093D1 - Informationswiedergabevorrichtung und -verfahren - Google Patents

Informationswiedergabevorrichtung und -verfahren

Info

Publication number
DE69823093D1
DE69823093D1 DE69823093T DE69823093T DE69823093D1 DE 69823093 D1 DE69823093 D1 DE 69823093D1 DE 69823093 T DE69823093 T DE 69823093T DE 69823093 T DE69823093 T DE 69823093T DE 69823093 D1 DE69823093 D1 DE 69823093D1
Authority
DE
Germany
Prior art keywords
reproduction device
information reproduction
information
reproduction
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.)
Expired - Lifetime
Application number
DE69823093T
Other languages
English (en)
Other versions
DE69823093T2 (de
Inventor
Shigeo Yamaguchi
Junichi Horigome
Takayoshi Chiba
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69823093D1 publication Critical patent/DE69823093D1/de
Publication of DE69823093T2 publication Critical patent/DE69823093T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
    • 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
    • G11B20/10009—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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
    • 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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
    • G11B20/10083—PR1 or PR(1,1,), i.e. partial response class 1, polynomial 1+D
    • 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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
    • G11B20/10101—PR2 or PR(1,2,1), i.e. partial response class 2, polynomial (1+D)2=1+2D+D2
    • 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
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
    • G11B20/10148—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom partial response PR(1,3,3,1)
    • 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
    • H03M13/31—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 coding for error detection or correction and efficient use of the spectrum
    • 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
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/3961—Arrangements of methods for branch or transition metric calculation
    • 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
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • 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
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • H03M13/4107—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing add, compare, select [ACS] operations
    • 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
    • H03M13/6331—Error control coding in combination with equalisation
    • 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
    • H03M13/6343—Error control coding in combination with techniques for partial response channels, e.g. 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
    • G11B20/18—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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE69823093T 1997-05-08 1998-05-04 Informationswiedergabevorrichtung und -verfahren Expired - Lifetime DE69823093T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11832397A JP3855361B2 (ja) 1997-05-08 1997-05-08 情報再生装置および再生方法

Publications (2)

Publication Number Publication Date
DE69823093D1 true DE69823093D1 (de) 2004-05-19
DE69823093T2 DE69823093T2 (de) 2004-10-21

Family

ID=14733835

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69823093T Expired - Lifetime DE69823093T2 (de) 1997-05-08 1998-05-04 Informationswiedergabevorrichtung und -verfahren

Country Status (5)

Country Link
US (2) US6289059B1 (de)
EP (1) EP0878797B1 (de)
JP (1) JP3855361B2 (de)
KR (1) KR100579014B1 (de)
DE (1) DE69823093T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3855361B2 (ja) * 1997-05-08 2006-12-06 ソニー株式会社 情報再生装置および再生方法
JP3429166B2 (ja) 1997-08-28 2003-07-22 富士通株式会社 光学的記憶装置
EP1046235A1 (de) * 1998-09-18 2000-10-25 Koninklijke Philips Electronics N.V. Vorrichtung zur bilddetektion unter anwendung von maximaler wahrscheinlichkeitstechnikund partial response
JP2000182292A (ja) * 1998-12-15 2000-06-30 Fujitsu Ltd 光学的記憶装置及び光記憶媒体の記録再生方法
JP4639441B2 (ja) * 1999-09-01 2011-02-23 ソニー株式会社 ディジタル信号処理装置および処理方法、並びにディジタル信号記録装置および記録方法
JP2001266355A (ja) * 2000-03-17 2001-09-28 Pioneer Electronic Corp ディスクドライブ装置
GB0018842D0 (en) * 2000-08-02 2000-09-20 Koninkl Philips Electronics Nv Data decoder
JP2002269925A (ja) 2001-03-09 2002-09-20 Matsushita Electric Ind Co Ltd 光ディスク再生装置
US6492925B2 (en) * 2001-04-18 2002-12-10 Raytheon Company Ultra-wide band (20 MHz to 5 GHz) analog to digital signal processor
JP3753951B2 (ja) 2001-05-31 2006-03-08 富士通株式会社 データ再生装置における欠陥検出装置及びそのデータ再生装置
CN1306516C (zh) * 2001-11-09 2007-03-21 株式会社东芝 信息记录/还原系统和记录校正方法
JP3897118B2 (ja) * 2003-10-31 2007-03-22 株式会社日立製作所 情報再生方法及び情報再生装置
JP2005267802A (ja) * 2004-03-19 2005-09-29 Sony Corp ディスクドライブ装置及び記録パワー設定方法
JP2006065918A (ja) * 2004-08-25 2006-03-09 Tdk Corp 磁気記録再生装置
TWI271711B (en) * 2004-09-03 2007-01-21 Mediatek Inc Decoding apparatus and method of optical information reproducing system
JP2007335012A (ja) * 2006-06-15 2007-12-27 Fujitsu Ltd 制御装置および記憶装置
JP4861435B2 (ja) * 2006-12-05 2012-01-25 パイオニア株式会社 情報再生装置及び方法、並びにコンピュータプログラム
JP2009180532A (ja) * 2008-01-29 2009-08-13 Renesas Technology Corp 標準セルおよび半導体装置
JP5992292B2 (ja) * 2012-10-30 2016-09-14 株式会社東芝 復号装置、方法およびプログラム
KR101668057B1 (ko) * 2014-11-18 2016-10-20 김현석 냉매 자가충전 키트

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US5424882A (en) * 1989-03-13 1995-06-13 Hitachi, Ltd. Signal processor for discriminating recording data
US5361247A (en) * 1989-09-12 1994-11-01 Sharp Kabushiki Kaisha Information recording and reproducing device with reproduction and automatic gain control circuit
US5715105A (en) * 1992-09-28 1998-02-03 Hitachi, Ltd. Method of and apparatus for recording on and reproducing from disk-type recording medium having recording tracks with sectors each having an ID area and a data area
JP3456592B2 (ja) 1993-05-11 2003-10-14 ソニー株式会社 光デイスク装置
JPH0745009A (ja) * 1993-07-28 1995-02-14 Hitachi Ltd データ伝送装置
US5602858A (en) * 1993-09-20 1997-02-11 Kabushiki Kaisha Toshiba Digital signal decoding apparatus having a plurality of correlation tables and a method thereof
EP0644661B1 (de) * 1993-09-20 2000-06-14 Canon Kabushiki Kaisha Signalverarbeitungsapparat
JPH0884047A (ja) * 1994-09-14 1996-03-26 Toshiba Corp ディジタル信号復号装置およびディジタル信号復号方法
JP3224181B2 (ja) * 1993-11-09 2001-10-29 富士通株式会社 光ディスクからのデータ再生システム
JPH07230670A (ja) * 1993-12-24 1995-08-29 Seiko Epson Corp 光磁気記録再生装置
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JPH0869672A (ja) * 1994-08-30 1996-03-12 Hitachi Ltd データ処理装置
JP3570791B2 (ja) * 1995-03-28 2004-09-29 パイオニア株式会社 デジタルデータ記録異種媒体情報再生装置
JPH08287608A (ja) * 1995-04-18 1996-11-01 Fujitsu Ltd 情報再生装置及び最尤等化検出方法
JP3674111B2 (ja) * 1995-10-25 2005-07-20 三菱電機株式会社 データ伝送装置
JP3576676B2 (ja) * 1996-01-31 2004-10-13 三菱電機株式会社 ダイバーシチ受信機
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KR100189906B1 (ko) * 1996-04-17 1999-06-01 윤종용 비터비 복호화방법 및 그 회로
US5901128A (en) * 1996-05-14 1999-05-04 Pioneer Electronic Corporation Recorded information reproducing apparatus
JPH10289539A (ja) 1997-04-11 1998-10-27 Sony Corp 情報再生装置および再生方法
JP3855361B2 (ja) * 1997-05-08 2006-12-06 ソニー株式会社 情報再生装置および再生方法

Also Published As

Publication number Publication date
EP0878797B1 (de) 2004-04-14
DE69823093T2 (de) 2004-10-21
JP3855361B2 (ja) 2006-12-06
EP0878797A1 (de) 1998-11-18
US6570940B2 (en) 2003-05-27
US20010048649A1 (en) 2001-12-06
US6289059B1 (en) 2001-09-11
KR100579014B1 (ko) 2006-08-30
JPH10312640A (ja) 1998-11-24
KR19980086821A (ko) 1998-12-05

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