WO2008139784A1 - 光ディスク再生光量設定方法及び光ディスク装置 - Google Patents

光ディスク再生光量設定方法及び光ディスク装置 Download PDF

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Publication number
WO2008139784A1
WO2008139784A1 PCT/JP2008/056312 JP2008056312W WO2008139784A1 WO 2008139784 A1 WO2008139784 A1 WO 2008139784A1 JP 2008056312 W JP2008056312 W JP 2008056312W WO 2008139784 A1 WO2008139784 A1 WO 2008139784A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical disk
light quantity
reproduction
setting method
reproduction light
Prior art date
Application number
PCT/JP2008/056312
Other languages
English (en)
French (fr)
Inventor
Nobuo Takeshita
Toshiya Matozaki
Original Assignee
Mitsubishi Electric Corporation
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 Mitsubishi Electric Corporation filed Critical Mitsubishi Electric Corporation
Priority to US12/596,075 priority Critical patent/US20100110866A1/en
Priority to DE112008000895T priority patent/DE112008000895T5/de
Priority to JP2009514036A priority patent/JP5052604B2/ja
Priority to CN200880015895A priority patent/CN101681641A/zh
Publication of WO2008139784A1 publication Critical patent/WO2008139784A1/ja

Links

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
    • G11B7/12—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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Head (AREA)

Abstract

　光ディスクを再生するために照射する光量を設定する方法において、光ディスク上の情報が記録された領域をテスト用再生光量を用いて再生し(Ｓ１４、Ｓ２４)、その再生信号の品質値が所定の値に達するまでの再生時間や再生回数を求め(Ｓ２０、Ｓ３０)、それらの値を用いて演算を行うことにより本再生で用いる再生光量を設定する（Ｓ３２）。記録マークが大きく劣化している状態も検出することができ、記録マークを再生不可能な状態まで劣化させることを回避することができる。  
PCT/JP2008/056312 2007-05-16 2008-03-31 光ディスク再生光量設定方法及び光ディスク装置 WO2008139784A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/596,075 US20100110866A1 (en) 2007-05-16 2008-03-31 Optical disc reproducing light quantity setting method and optical disc apparatus
DE112008000895T DE112008000895T5 (de) 2007-05-16 2008-03-31 Optische-Speicherplatte-Reduzierlichtmengen-Festlegungsverfahren und Optische-Speicherplatte-Vorrichtung
JP2009514036A JP5052604B2 (ja) 2007-05-16 2008-03-31 光ディスク再生光量設定方法及び光ディスク装置
CN200880015895A CN101681641A (zh) 2007-05-16 2008-03-31 光盘再现光量设定方法及光盘装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007130032 2007-05-16
JP2007-130032 2007-05-16
JP2007-238807 2007-09-14
JP2007238807 2007-09-14

Publications (1)

Publication Number Publication Date
WO2008139784A1 true WO2008139784A1 (ja) 2008-11-20

Family

ID=40002007

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056312 WO2008139784A1 (ja) 2007-05-16 2008-03-31 光ディスク再生光量設定方法及び光ディスク装置

Country Status (5)

Country Link
US (1) US20100110866A1 (ja)
JP (1) JP5052604B2 (ja)
CN (1) CN101681641A (ja)
DE (1) DE112008000895T5 (ja)
WO (1) WO2008139784A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010116734A1 (ja) * 2009-04-10 2010-10-14 三菱電機株式会社 光ディスク再生パワー設定方法、光ディスク再生方法、及び光ディスク装置
CN102110445A (zh) * 2009-12-25 2011-06-29 日立乐金资料储存股份有限公司 光盘装置和光盘再现方法
JP2013118022A (ja) * 2011-12-01 2013-06-13 Hitachi Consumer Electronics Co Ltd パワー調整方法及び情報記録再生装置
JP2013251022A (ja) * 2012-05-31 2013-12-12 Funai Electric Co Ltd 光ディスク装置、光ディスクの再生方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2398019B1 (en) * 2009-02-12 2017-12-13 Panasonic Intellectual Property Management Co., Ltd. Optical information reproducing device and optical information reproducing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001319332A (ja) * 2000-05-12 2001-11-16 Fujitsu Ten Ltd ディスク装置
JP2003006941A (ja) * 2001-06-25 2003-01-10 Tdk Corp 光記録媒体の評価方法
JP2004319033A (ja) * 2003-04-18 2004-11-11 Tdk Corp 光記録媒体
JP2006120275A (ja) * 2004-10-25 2006-05-11 Hitachi Ltd 光ディスク装置及びサーボ系調整方法
JP2006309921A (ja) * 2005-03-29 2006-11-09 Hitachi Maxell Ltd 光記録媒体の評価方法、光記録媒体及び情報記録再生装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909497A (en) * 1974-04-12 1975-09-30 Stanford Research Inst Solid polymers thermally degradable to flowable compositions
JP2001034944A (ja) 1999-07-14 2001-02-09 Victor Co Of Japan Ltd 光記録再生装置
KR100925213B1 (ko) * 2002-06-07 2009-11-06 엘지전자 주식회사 고밀도 멀티 레이어 광디스크와, 그에 따른 광 파워조절방법
TW200703325A (en) * 2005-03-29 2007-01-16 Hitachi Maxell Method for evaluating optical recording medium, optical recording medium, and information-recording/reproducing apparatus
JP4216293B2 (ja) * 2006-04-24 2009-01-28 Ｔｄｋ株式会社 光ディスクの再生耐久性評価方法及び情報再生装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001319332A (ja) * 2000-05-12 2001-11-16 Fujitsu Ten Ltd ディスク装置
JP2003006941A (ja) * 2001-06-25 2003-01-10 Tdk Corp 光記録媒体の評価方法
JP2004319033A (ja) * 2003-04-18 2004-11-11 Tdk Corp 光記録媒体
JP2006120275A (ja) * 2004-10-25 2006-05-11 Hitachi Ltd 光ディスク装置及びサーボ系調整方法
JP2006309921A (ja) * 2005-03-29 2006-11-09 Hitachi Maxell Ltd 光記録媒体の評価方法、光記録媒体及び情報記録再生装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010116734A1 (ja) * 2009-04-10 2010-10-14 三菱電機株式会社 光ディスク再生パワー設定方法、光ディスク再生方法、及び光ディスク装置
CN102388419A (zh) * 2009-04-10 2012-03-21 三菱电机株式会社 光盘再现功率设定方法、光盘再现方法及光盘装置
CN102110445A (zh) * 2009-12-25 2011-06-29 日立乐金资料储存股份有限公司 光盘装置和光盘再现方法
JP2013118022A (ja) * 2011-12-01 2013-06-13 Hitachi Consumer Electronics Co Ltd パワー調整方法及び情報記録再生装置
JP2013251022A (ja) * 2012-05-31 2013-12-12 Funai Electric Co Ltd 光ディスク装置、光ディスクの再生方法

Also Published As

Publication number Publication date
JPWO2008139784A1 (ja) 2010-07-29
US20100110866A1 (en) 2010-05-06
DE112008000895T5 (de) 2010-04-22
CN101681641A (zh) 2010-03-24
JP5052604B2 (ja) 2012-10-17

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