KR20100132047A - 데이터 기록 평가 방법 및 광디스크 기록 재생 장치 - Google Patents

데이터 기록 평가 방법 및 광디스크 기록 재생 장치 Download PDF

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Publication number
KR20100132047A
KR20100132047A KR1020107024125A KR20107024125A KR20100132047A KR 20100132047 A KR20100132047 A KR 20100132047A KR 1020107024125 A KR1020107024125 A KR 1020107024125A KR 20107024125 A KR20107024125 A KR 20107024125A KR 20100132047 A KR20100132047 A KR 20100132047A
Authority
KR
South Korea
Prior art keywords
recording
evaluation index
state
index value
signal
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
KR1020107024125A
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English (en)
Korean (ko)
Inventor
히로야 카키모토
Original Assignee
다이요 유덴 가부시키가이샤
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 다이요 유덴 가부시키가이샤 filed Critical 다이요 유덴 가부시키가이샤
Publication of KR20100132047A publication Critical patent/KR20100132047A/ko
Withdrawn legal-status Critical Current

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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
    • G11B7/0045—Recording
    • G11B7/00458—Verification, i.e. checking data during or after recording
    • 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
    • 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
    • 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
    • G11B7/1263—Power control during transducing, e.g. by monitoring
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
KR1020107024125A 2008-03-27 2009-03-26 데이터 기록 평가 방법 및 광디스크 기록 재생 장치 Withdrawn KR20100132047A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008082369A JP2009238301A (ja) 2008-03-27 2008-03-27 データ記録評価方法及び光ディスク記録再生装置
JPJP-P-2008-082369 2008-03-27

Publications (1)

Publication Number Publication Date
KR20100132047A true KR20100132047A (ko) 2010-12-16

Family

ID=41114080

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020107024125A Withdrawn KR20100132047A (ko) 2008-03-27 2009-03-26 데이터 기록 평가 방법 및 광디스크 기록 재생 장치

Country Status (5)

Country Link
US (1) US20110019520A1 (enExample)
EP (1) EP2270781A4 (enExample)
JP (1) JP2009238301A (enExample)
KR (1) KR20100132047A (enExample)
WO (1) WO2009119902A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013062000A (ja) * 2010-01-18 2013-04-04 Panasonic Corp 光ディスク記録再生装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4010086B2 (ja) * 1999-12-24 2007-11-21 日本ビクター株式会社 ビタビ復号器
JP3815543B2 (ja) 2000-12-27 2006-08-30 日本電気株式会社 記録状態検出装置およびこれを備えた情報記録再生装置
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
JP2005267759A (ja) * 2004-03-19 2005-09-29 Sanyo Electric Co Ltd 復号装置
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
JP4154608B2 (ja) * 2004-05-27 2008-09-24 日本電気株式会社 情報記録媒体への記録方法及び情報記録再生装置並びに情報記録媒体
JP4564461B2 (ja) * 2006-03-09 2010-10-20 太陽誘電株式会社 光情報記録再生装置、光情報記録処理方法、プログラム、及び中央演算装置
JP4597911B2 (ja) * 2006-06-02 2010-12-15 太陽誘電株式会社 光記録再生方法および装置および信号処理回路および光記録再生プログラムおよび情報記録媒体
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

Also Published As

Publication number Publication date
EP2270781A1 (en) 2011-01-05
US20110019520A1 (en) 2011-01-27
EP2270781A4 (en) 2011-09-14
JP2009238301A (ja) 2009-10-15
WO2009119902A1 (ja) 2009-10-01

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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20101027

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid