JP4959749B2 - 記録条件の調整方法及び光ディスク装置 - Google Patents

記録条件の調整方法及び光ディスク装置 Download PDF

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JP4959749B2
JP4959749B2 JP2009113152A JP2009113152A JP4959749B2 JP 4959749 B2 JP4959749 B2 JP 4959749B2 JP 2009113152 A JP2009113152 A JP 2009113152A JP 2009113152 A JP2009113152 A JP 2009113152A JP 4959749 B2 JP4959749 B2 JP 4959749B2
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Japan
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circuit
bit string
target signal
euclidean distance
evaluation value
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JP2009113152A
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Japanese (ja)
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JP2010262702A5 (enExample
JP2010262702A (ja
Inventor
悠介 中村
孝一郎 西村
浩行 峯邑
貴弘 黒川
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Hitachi Ltd
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Hitachi Ltd
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Priority to JP2009113152A priority Critical patent/JP4959749B2/ja
Priority to CN200910168240.1A priority patent/CN101882452B/zh
Priority to US12/608,099 priority patent/US8531932B2/en
Priority to EP09252534.4A priority patent/EP2249343B1/en
Priority to MYPI2010000792A priority patent/MY150349A/en
Priority to BRPI1000385-1A priority patent/BRPI1000385A2/pt
Priority to MX2010002322A priority patent/MX2010002322A/es
Publication of JP2010262702A publication Critical patent/JP2010262702A/ja
Publication of JP2010262702A5 publication Critical patent/JP2010262702A5/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
    • G11B20/10009—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
    • 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
    • G11B20/1012—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(1,2,2,2,1)
    • 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
    • G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
    • 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
    • G11B20/10481—Improvement or modification of read or write signals optimisation 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
    • G11B20/1816—Testing
    • 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
    • G11B20/182—Testing using test patterns
    • 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
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • 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
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • G11B20/225—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions for reducing wow or flutter
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1267—Power calibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP2009113152A 2009-05-08 2009-05-08 記録条件の調整方法及び光ディスク装置 Active JP4959749B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2009113152A JP4959749B2 (ja) 2009-05-08 2009-05-08 記録条件の調整方法及び光ディスク装置
CN200910168240.1A CN101882452B (zh) 2009-05-08 2009-08-20 记录条件的调整方法和光盘装置
US12/608,099 US8531932B2 (en) 2009-05-08 2009-10-29 Adjusting method for recording condition and optical disc device
EP09252534.4A EP2249343B1 (en) 2009-05-08 2009-10-30 Adjusting method for recording condition and optical disc device
MYPI2010000792A MY150349A (en) 2009-05-08 2010-02-24 Adjusting method for recording condition and optical disc device
BRPI1000385-1A BRPI1000385A2 (pt) 2009-05-08 2010-02-26 dispositivo de disco óptico, e, método de ajuste para condição de gravação para um disco óptico
MX2010002322A MX2010002322A (es) 2009-05-08 2010-02-26 Metodo de ajuste para condicionar la grabacion y dispositivo de disco optico.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009113152A JP4959749B2 (ja) 2009-05-08 2009-05-08 記録条件の調整方法及び光ディスク装置

Related Child Applications (2)

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JP2011231255A Division JP5309197B2 (ja) 2011-10-21 2011-10-21 記録条件の調整方法及び光ディスク装置
JP2012020446A Division JP5427903B2 (ja) 2012-02-02 2012-02-02 記録条件の調整方法及び光ディスク装置

Publications (3)

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JP2010262702A JP2010262702A (ja) 2010-11-18
JP2010262702A5 JP2010262702A5 (enExample) 2011-07-21
JP4959749B2 true JP4959749B2 (ja) 2012-06-27

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US (1) US8531932B2 (enExample)
EP (1) EP2249343B1 (enExample)
JP (1) JP4959749B2 (enExample)
CN (1) CN101882452B (enExample)
BR (1) BRPI1000385A2 (enExample)
MX (1) MX2010002322A (enExample)
MY (1) MY150349A (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5469390B2 (ja) 2009-07-15 2014-04-16 日立コンシューマエレクトロニクス株式会社 再生信号評価方法及び記録調整方法
JP4812881B2 (ja) * 2010-01-20 2011-11-09 日立コンシューマエレクトロニクス株式会社 記録条件の調整方法及び光ディスク装置
CN102473439B (zh) 2010-04-20 2015-05-27 松下电器产业株式会社 信息再生方法、信息记录方法及信息记录介质
US8149529B2 (en) * 2010-07-28 2012-04-03 Lsi Corporation Dibit extraction for estimation of channel parameters
CN109643559B (zh) * 2016-08-30 2020-11-27 索尼半导体解决方案公司 信号质量评估设备、信号质量评估值生成方法及再现设备
US9892752B1 (en) * 2017-06-15 2018-02-13 Seagate Technology Llc Selecting a maximum laser power for a calibration based on a previously measured function
WO2020202765A1 (ja) * 2019-03-29 2020-10-08 パナソニックＩｐマネジメント株式会社 記録状態評価方法、記録補償方法及び情報記録再生装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3926688B2 (ja) * 2001-07-19 2007-06-06 松下電器産業株式会社 再生信号品質評価方法および情報再生装置
JP3697409B2 (ja) * 2001-11-09 2005-09-21 株式会社東芝 信号品質評価方法および記録補償方法
JP3668202B2 (ja) * 2002-03-13 2005-07-06 株式会社東芝 情報記録再生装置及びその信号評価方法
JP3857685B2 (ja) * 2003-01-28 2006-12-13 日本電気株式会社 信号評価方法と情報記録再生装置と情報再生装置及び情報媒体
EP1443509A3 (en) 2003-01-28 2006-01-11 Kabushiki Kaisha Toshiba Signal evaluation method, information recording/reproducing apparatus, information reproducing apparatus, and information recording medium
JP4313755B2 (ja) * 2004-05-07 2009-08-12 株式会社日立製作所 再生信号の評価方法および光ディスク装置
JP4160533B2 (ja) 2004-06-03 2008-10-01 株式会社東芝 光ディスク記録再生方法及び光ディスク記録再生装置
JP3711140B2 (ja) * 2005-03-07 2005-10-26 株式会社東芝 情報記録再生装置及びその信号評価方法
JP4622632B2 (ja) * 2005-03-31 2011-02-02 ソニー株式会社 最尤復号装置、信号評価方法、再生装置
JP4655892B2 (ja) * 2005-11-07 2011-03-23 ソニー株式会社 記録再生装置、記録方法
JP5089939B2 (ja) 2006-08-11 2012-12-05 ソニーオプティアーク株式会社 記録再生装置、評価値演算方法
JP2008152846A (ja) * 2006-12-15 2008-07-03 Toshiba Corp 光ディスク装置および光ディスク記録再生方法
JPWO2009041598A1 (ja) * 2007-09-26 2011-01-27 日本電気株式会社 信号品質評価装置、方法、及び、情報記録再生装置
JP5057925B2 (ja) * 2007-10-18 2012-10-24 株式会社日立製作所 デジタル情報再生方法

Also Published As

Publication number Publication date
CN101882452A (zh) 2010-11-10
MX2010002322A (es) 2010-11-11
EP2249343A1 (en) 2010-11-10
CN101882452B (zh) 2013-08-21
US20100284257A1 (en) 2010-11-11
US8531932B2 (en) 2013-09-10
EP2249343B1 (en) 2014-04-02
BRPI1000385A2 (pt) 2011-03-22
MY150349A (en) 2013-12-31
JP2010262702A (ja) 2010-11-18

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