WO2009051246A1 - 光情報記録媒体再生装置および光情報記録媒体 - Google Patents

光情報記録媒体再生装置および光情報記録媒体 Download PDF

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Publication number
WO2009051246A1
WO2009051246A1 PCT/JP2008/068904 JP2008068904W WO2009051246A1 WO 2009051246 A1 WO2009051246 A1 WO 2009051246A1 JP 2008068904 W JP2008068904 W JP 2008068904W WO 2009051246 A1 WO2009051246 A1 WO 2009051246A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
optical information
information recording
reproducing
super resolution
Prior art date
Application number
PCT/JP2008/068904
Other languages
English (en)
French (fr)
Inventor
Hirohisa Yamada
Masaki Yamamoto
Yasuhiro Harada
Go Mori
Hideharu Tajima
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to JP2009538180A priority Critical patent/JP5068824B2/ja
Priority to US12/734,190 priority patent/US8094544B2/en
Priority to CN200880111857.3A priority patent/CN101828223B/zh
Publication of WO2009051246A1 publication Critical patent/WO2009051246A1/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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins

Abstract

　光学系の解像限界より短い長さの記録マークを含み、複数の記録マークがランダムパターン方式に従って配置されることによって情報が記録された超解像光情報記録媒体（１００ａ）を再生する光情報記録媒体再生装置（１）は、超解像光情報記録媒体（１００ａ）の記録面に対してレーザ光を照射して、超解像光情報記録媒体（１００ａ）の再生品質に関する指標を計測するテストリードを、再生レーザパワーを所定の初期値から変動させながら実行し、計測した指標に基づき、再生レーザパワーを設定する。これにより、テストリードの結果に基づいて、超解像光情報記録媒体（１００ａ）に記録されている情報を再生する再生レーザパワーを決定するので、良好な再生品質を得ることができる。
PCT/JP2008/068904 2007-10-19 2008-10-17 光情報記録媒体再生装置および光情報記録媒体 WO2009051246A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009538180A JP5068824B2 (ja) 2007-10-19 2008-10-17 光情報記録媒体再生装置および光情報記録媒体
US12/734,190 US8094544B2 (en) 2007-10-19 2008-10-17 Optical information recording medium reproducing device
CN200880111857.3A CN101828223B (zh) 2007-10-19 2008-10-17 光信息记录介质再生装置以及光信息记录介质

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007273203 2007-10-19
JP2007-273203 2007-10-19

Publications (1)

Publication Number Publication Date
WO2009051246A1 true WO2009051246A1 (ja) 2009-04-23

Family

ID=40567508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068904 WO2009051246A1 (ja) 2007-10-19 2008-10-17 光情報記録媒体再生装置および光情報記録媒体

Country Status (4)

Country Link
US (1) US8094544B2 (ja)
JP (1) JP5068824B2 (ja)
CN (1) CN101828223B (ja)
WO (1) WO2009051246A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015008514A1 (ja) * 2013-07-16 2015-01-22 シャープ株式会社 再生装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9583135B1 (en) * 2016-04-27 2017-02-28 Seagate Technology Llc Laser mode hopping detection method and apparatus for a heat-assisted magnetic recording device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773506A (ja) * 1993-08-31 1995-03-17 Victor Co Of Japan Ltd 光記録媒体及びその再生装置
JPH07320291A (ja) * 1994-05-19 1995-12-08 Victor Co Of Japan Ltd 光ディスク装置
JPH09320094A (ja) * 1996-05-27 1997-12-12 Nikon Corp 光ディスクの再生方法及び光ディスク
JP2003045034A (ja) * 2001-07-30 2003-02-14 Matsushita Electric Ind Co Ltd 光ディスク再生装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3866016B2 (ja) 1999-07-02 2007-01-10 Ｔｄｋ株式会社 光情報媒体およびその再生方法
JP4287580B2 (ja) * 1999-11-30 2009-07-01 Ｔｄｋ株式会社 光情報媒体の再生方法
JP2001307334A (ja) * 2000-04-21 2001-11-02 Toshiba Corp 情報記憶媒体、情報記録方法、及び情報再生方法
JP3855702B2 (ja) * 2000-12-15 2006-12-13 ソニー株式会社 再生信号評価装置および方法、再生装置および方法、ならびに、記録装置および方法
JP3895933B2 (ja) 2001-01-30 2007-03-22 三洋電機株式会社 ディスク記録再生装置
US7206351B2 (en) * 2001-05-28 2007-04-17 Sharp Kabushiki Kaisha Signal evaluation devices and signal evaluation methods, signal quality evaluation methods and reproducing devices and recording devices
RU2346344C2 (ru) * 2002-05-30 2009-02-10 Эл Джи Электроникс Инк. Оптический диск высокой плотности и способ воспроизведения и записи его данных
JP2004355783A (ja) * 2003-05-30 2004-12-16 Sharp Corp 光情報記録媒体とその再生方法
JP2006018976A (ja) 2004-07-05 2006-01-19 Victor Co Of Japan Ltd 光記録媒体及びその再生装置
KR101244908B1 (ko) * 2005-12-20 2013-03-18 티디케이가부시기가이샤 광기록 매체에 대한 최적 재생 파워를 결정하는 방법 및 장치
JP2007234170A (ja) * 2006-03-02 2007-09-13 Tdk Corp 光記録媒体の再生方法、再生装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773506A (ja) * 1993-08-31 1995-03-17 Victor Co Of Japan Ltd 光記録媒体及びその再生装置
JPH07320291A (ja) * 1994-05-19 1995-12-08 Victor Co Of Japan Ltd 光ディスク装置
JPH09320094A (ja) * 1996-05-27 1997-12-12 Nikon Corp 光ディスクの再生方法及び光ディスク
JP2003045034A (ja) * 2001-07-30 2003-02-14 Matsushita Electric Ind Co Ltd 光ディスク再生装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015008514A1 (ja) * 2013-07-16 2015-01-22 シャープ株式会社 再生装置
JPWO2015008514A1 (ja) * 2013-07-16 2017-03-02 シャープ株式会社 再生装置
US9633688B2 (en) 2013-07-16 2017-04-25 Sharp Kabushiki Kaisha Reproducing device
CN111755032A (zh) * 2013-07-16 2020-10-09 夏普株式会社 再生装置

Also Published As

Publication number Publication date
JP5068824B2 (ja) 2012-11-07
US8094544B2 (en) 2012-01-10
JPWO2009051246A1 (ja) 2011-03-03
US20100278026A1 (en) 2010-11-04
CN101828223B (zh) 2012-10-10
CN101828223A (zh) 2010-09-08

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