JP3926688B2 - 再生信号品質評価方法および情報再生装置 - Google Patents

再生信号品質評価方法および情報再生装置 Download PDF

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Publication number
JP3926688B2
JP3926688B2 JP2002196099A JP2002196099A JP3926688B2 JP 3926688 B2 JP3926688 B2 JP 3926688B2 JP 2002196099 A JP2002196099 A JP 2002196099A JP 2002196099 A JP2002196099 A JP 2002196099A JP 3926688 B2 JP3926688 B2 JP 3926688B2
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Japan
Prior art keywords
reproduction signal
value
state transition
time
state
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JP2002196099A
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Japanese (ja)
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JP2003141823A5 (enrdf_load_stackoverflow
JP2003141823A (ja
Inventor
健 中嶋
晴旬 宮下
成 古宮
広通 石橋
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2002196099A priority Critical patent/JP3926688B2/ja
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Publication of JP2003141823A5 publication Critical patent/JP2003141823A5/ja
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    • 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

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2002196099A 2001-07-19 2002-07-04 再生信号品質評価方法および情報再生装置 Expired - Lifetime JP3926688B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002196099A JP3926688B2 (ja) 2001-07-19 2002-07-04 再生信号品質評価方法および情報再生装置

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2001-219372 2001-07-19
JP2001219372 2001-07-19
JP2001-251138 2001-08-22
JP2001251138 2001-08-22
JP2002196099A JP3926688B2 (ja) 2001-07-19 2002-07-04 再生信号品質評価方法および情報再生装置

Publications (3)

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JP2003141823A JP2003141823A (ja) 2003-05-16
JP2003141823A5 JP2003141823A5 (enrdf_load_stackoverflow) 2005-10-13
JP3926688B2 true JP3926688B2 (ja) 2007-06-06

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JP (1) JP3926688B2 (enrdf_load_stackoverflow)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7038869B2 (en) * 2003-04-14 2006-05-02 Matsushita Electric Industrial Co., Ltd. Recording control apparatus, recording and reproduction apparatus, and recording control method
JP4143489B2 (ja) 2003-07-09 2008-09-03 キヤノン株式会社 情報再生装置
JP4109173B2 (ja) 2003-09-09 2008-07-02 松下電器産業株式会社 適応等化装置、及び適応等化方法
EP1679709A1 (en) * 2003-10-31 2006-07-12 Matsushita Electric Industrial Co., Ltd. Recording method, recording apparatus, program and recording control apparatus
US7646686B2 (en) 2003-11-06 2010-01-12 Panasonic Corporation Recording/reproduction apparatus which adjusts recording power based on a partial response maximum likelihood (PRML) technique
JPWO2005073963A1 (ja) * 2004-01-28 2008-01-10 松下電器産業株式会社 サーボ位置調整方法およびサーボ位置調整装置
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
CN1922663B (zh) 2004-12-07 2010-08-11 松下电器产业株式会社 访问装置、访问方法以及控制装置
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
JP4750488B2 (ja) 2005-07-08 2011-08-17 ソニー株式会社 評価装置、再生装置、評価方法
JP2007207284A (ja) * 2006-01-30 2007-08-16 Toshiba Corp 光ディスク装置と光ディスク装置のチルト制御方法
US8004945B2 (en) 2006-03-13 2011-08-23 Panasonic Corporation Recording medium access device
JP4523583B2 (ja) 2006-12-27 2010-08-11 太陽誘電株式会社 データ記録評価方法及び光ディスク記録再生装置
JP5042236B2 (ja) 2006-12-28 2012-10-03 パナソニック株式会社 情報記録媒体評価方法、情報記録媒体、情報記録媒体の製造方法、信号処理方法、アクセス制御装置
JP5003284B2 (ja) * 2007-05-24 2012-08-15 日本電気株式会社 信号品質測定装置及び情報再生装置
JP4987843B2 (ja) 2007-12-28 2012-07-25 パナソニック株式会社 位相誤差検出装置、波形整形装置及び光ディスク装置
CA2684790A1 (en) 2008-02-28 2009-09-03 Panasonic Corporation Signal evaluation method and signal evaluation device
JP2009238301A (ja) 2008-03-27 2009-10-15 Taiyo Yuden Co Ltd データ記録評価方法及び光ディスク記録再生装置
WO2009122642A1 (ja) * 2008-03-31 2009-10-08 パナソニック株式会社 再生信号品質評価装置及び方法
RU2497205C2 (ru) 2008-07-01 2013-10-27 Панасоник Корпорэйшн Способ оценки сигнала воспроизведения, устройство оценки сигнала воспроизведения и устройство на оптическом диске, оснащенное таким устройством оценки сигнала воспроизведения
RU2010122319A (ru) 2008-10-02 2011-12-10 Панасоник Корпорэйшн (Jp) Способ оценки сигнала воспроизведения, носитель информации, устройство воспроизведения и устройство записи
US8179760B2 (en) 2008-10-02 2012-05-15 Panasonic Corporation Reproduction signal evaluation method, information recording medium, reproduction apparatus and recording apparatus
IN2010KN02337A (enrdf_load_stackoverflow) 2009-02-03 2015-05-15 Panasonic Corp
JP4764932B2 (ja) 2009-02-03 2011-09-07 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
JP4764939B2 (ja) 2009-04-14 2011-09-07 株式会社日立製作所 記録条件の調整方法及び光ディスク装置
JP4959749B2 (ja) * 2009-05-08 2012-06-27 株式会社日立製作所 記録条件の調整方法及び光ディスク装置
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
US8797832B2 (en) 2011-10-04 2014-08-05 Panasonic Corporation Decoding method and decoding device
JP5309197B2 (ja) * 2011-10-21 2013-10-09 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
JP5427903B2 (ja) * 2012-02-02 2014-02-26 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
EP2833360B9 (en) 2012-03-29 2018-04-25 Panasonic Intellectual Property Management Co., Ltd. Decoding device and decoding method
JP7316587B2 (ja) 2018-11-15 2023-07-28 パナソニックＩｐマネジメント株式会社 光ディスク装置

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