WO2008102600A1 - 記録条件調整方法、及び光ディスク装置 - Google Patents

記録条件調整方法、及び光ディスク装置 Download PDF

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Publication number
WO2008102600A1
WO2008102600A1 PCT/JP2008/051068 JP2008051068W WO2008102600A1 WO 2008102600 A1 WO2008102600 A1 WO 2008102600A1 JP 2008051068 W JP2008051068 W JP 2008051068W WO 2008102600 A1 WO2008102600 A1 WO 2008102600A1
Authority
WO
WIPO (PCT)
Prior art keywords
output level
setting section
recording strategy
pulse width
optical disc
Prior art date
Application number
PCT/JP2008/051068
Other languages
English (en)
French (fr)
Inventor
Masatsugu Ogawa
Masaki Nakano
Original Assignee
Nec 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 Nec Corporation filed Critical Nec Corporation
Priority to JP2009500114A priority Critical patent/JPWO2008102600A1/ja
Priority to US12/527,649 priority patent/US20100014406A1/en
Publication of WO2008102600A1 publication Critical patent/WO2008102600A1/ja

Links

Classifications

    • 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
    • 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
    • G11B7/0045—Recording
    • G11B7/00456—Recording strategies, e.g. pulse sequences
    • 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
    • G11B7/006—Overwriting
    • G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
    • 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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1275—Calibration data, e.g. specific training patterns for adjusting equalizer settings or other recording or playback parameters
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
    • H03M5/08—Code representation by pulse width

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

　本発明による光ディスク装置は、初期値設定部、出力レベル設定部、パルス幅設定部を有する記録ストラテジ調整部を具備する。初期値設定部は、基本記録ストラテジとして、レーザ光のパルス幅及び出力レベルの初期値を設定する。出力レベル設定部は、基本記録ストラテジの出力レベルを変化させて出力した複数の第１調整用レーザ光によって、記録ストラテジの出力レベルを調整する。パルス幅設定部は、出力レベル設定部において調整された前記出力レベルに固定し、前記基本ストラテジのパルス幅を変化させて出力した複数の第２調整用レーザ光によって、記録ストラテジのパルス幅を調整する。
PCT/JP2008/051068 2007-02-19 2008-01-25 記録条件調整方法、及び光ディスク装置 WO2008102600A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009500114A JPWO2008102600A1 (ja) 2007-02-19 2008-01-25 記録条件調整方法、及び光ディスク装置
US12/527,649 US20100014406A1 (en) 2007-02-19 2008-01-25 Recording condition adjusting method and optical disc apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007037590 2007-02-19
JP2007-037590 2007-02-19

Publications (1)

Publication Number Publication Date
WO2008102600A1 true WO2008102600A1 (ja) 2008-08-28

Family

ID=39709879

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051068 WO2008102600A1 (ja) 2007-02-19 2008-01-25 記録条件調整方法、及び光ディスク装置

Country Status (3)

Country Link
US (1) US20100014406A1 (ja)
JP (1) JPWO2008102600A1 (ja)
WO (1) WO2008102600A1 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005149610A (ja) * 2003-11-14 2005-06-09 Ricoh Co Ltd 情報記録方法及び情報記録装置
WO2006117913A1 (ja) * 2005-04-28 2006-11-09 Mitsubishi Denki Kabushiki Kaisha 光記録方法、光記録装置、及び光記録再生装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006277800A (ja) * 2005-03-28 2006-10-12 Taiyo Yuden Co Ltd 光情報記録装置および方法および信号処理回路
JP4281717B2 (ja) * 2005-07-19 2009-06-17 ティアック株式会社 光ディスク装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005149610A (ja) * 2003-11-14 2005-06-09 Ricoh Co Ltd 情報記録方法及び情報記録装置
WO2006117913A1 (ja) * 2005-04-28 2006-11-09 Mitsubishi Denki Kabushiki Kaisha 光記録方法、光記録装置、及び光記録再生装置

Also Published As

Publication number Publication date
JPWO2008102600A1 (ja) 2010-05-27
US20100014406A1 (en) 2010-01-21

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