MX2009010940A - Metodo de verificacion de discos opticos y medio de disco optico. - Google Patents

Metodo de verificacion de discos opticos y medio de disco optico.

Info

Publication number
MX2009010940A
MX2009010940A MX2009010940A MX2009010940A MX2009010940A MX 2009010940 A MX2009010940 A MX 2009010940A MX 2009010940 A MX2009010940 A MX 2009010940A MX 2009010940 A MX2009010940 A MX 2009010940A MX 2009010940 A MX2009010940 A MX 2009010940A
Authority
MX
Mexico
Prior art keywords
optical disc
radius position
quality index
signal quality
test method
Prior art date
Application number
MX2009010940A
Other languages
English (en)
Inventor
Shigeru Furumiya
Atsushi Nakamura
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of MX2009010940A publication Critical patent/MX2009010940A/es

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
    • G11B7/0045—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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • 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
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10314—Improvement or modification of read or write signals signal quality assessment amplitude of the recorded or reproduced signal
    • 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
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10361—Improvement or modification of read or write signals signal quality assessment digital demodulation process
    • G11B20/10379—Improvement or modification of read or write signals signal quality assessment digital demodulation process based on soft decisions, e.g. confidence values, probability estimates, likelihoods values or path metrics of a statistical decoding algorithm
    • 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
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/268—Post-production operations, e.g. initialising phase-change recording layers, checking for defects
    • 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
    • G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
    • G11B2020/10981—Recording or reproducing data when the data rate or the relative speed between record carrier and transducer is variable
    • G11B2020/1099—Recording or reproducing data when the data rate or the relative speed between record carrier and transducer is variable wherein a disc is spun at a variable speed
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once discs
    • 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
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Optical Head (AREA)

Abstract

Se describe un método de prueba de discos ópticos que incluye una etapa que graba datos a una velocidad de grabación (Vi) en una primera posición de radio de un disco óptico, una segunda posición de radio del disco óptico es más interior que la primera posición de radio, y una tercera posición de radio está más adentro que la segunda posición de radio, respectivamente, y reproduce los datos grabados, para de esta manera medir valores de índice de calidad de señal (A, B, C) de la señal reproducida; una etapa que graba datos a una velocidad de grabación (V2) que es más grande que la primera velocidad de grabación (V1) en la primera posición de radio y la segunda posición de radio, respectivamente, y reproduce los datos grabados, para de esta manera medir valores de índice de calidad de señal (D, E) de la señal reproducida, respectivamente; y una etapa que corrige el índice de calidad de señal (C) de acuerdo con una diferencia entre los valores de índice de calidad de señal (B y E), para de esta manera grabar datos a la segunda velocidad (V2) en la tercera posición de radio, y calcula un valor de índice de calidad de señal (F) en caso de la reproducción de los datos grabados.
MX2009010940A 2008-02-15 2009-02-10 Metodo de verificacion de discos opticos y medio de disco optico. MX2009010940A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2893008P 2008-02-15 2008-02-15
PCT/JP2009/000532 WO2009101796A1 (ja) 2008-02-15 2009-02-10 光ディスクの検査方法および光ディスク媒体

Publications (1)

Publication Number Publication Date
MX2009010940A true MX2009010940A (es) 2009-10-29

Family

ID=40954995

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009010940A MX2009010940A (es) 2008-02-15 2009-02-10 Metodo de verificacion de discos opticos y medio de disco optico.

Country Status (10)

Country Link
US (1) US7990820B2 (es)
EP (1) EP2244259A4 (es)
JP (1) JP5437083B2 (es)
KR (1) KR20100110720A (es)
CN (1) CN101681652B (es)
BR (1) BRPI0902890A2 (es)
CA (1) CA2686881A1 (es)
MX (1) MX2009010940A (es)
RU (1) RU2009138050A (es)
WO (1) WO2009101796A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008299913A (ja) * 2007-05-29 2008-12-11 Hitachi Ltd 光ディスク装置及びその情報記録方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05225571A (ja) * 1992-02-14 1993-09-03 Sony Corp 光ディスク記録装置およびその方法
JPH0757267A (ja) * 1993-08-09 1995-03-03 Olympus Optical Co Ltd 光ディスク装置
JPH0773470A (ja) 1993-09-03 1995-03-17 Pioneer Electron Corp 追記型光ディスク及びその記録装置
US5963520A (en) * 1996-07-10 1999-10-05 Teac Corporation Method and apparatus for high speed data recovery from CD-ROMS or like disks or varying qualities
JP3442243B2 (ja) * 1996-07-12 2003-09-02 ティアック株式会社 デ−タ再生方法及び装置
JPH1064063A (ja) * 1996-08-22 1998-03-06 Sony Corp 記録媒体の感度特性検査装置の出力パワー管理方法
JPH10112076A (ja) * 1996-10-04 1998-04-28 Hitachi Ltd 情報の記録媒体とその製造方法および記録媒体の前処理方法
JPH10149586A (ja) * 1996-11-18 1998-06-02 Toray Ind Inc 記録媒体の製造方法および製造装置
CN1466126A (zh) * 2002-06-28 2004-01-07 上海乐金广电电子有限公司 确定光盘记录功率的最佳方法
JP2004086999A (ja) * 2002-08-27 2004-03-18 Ricoh Co Ltd 記録条件設定方法、プログラム及び記録媒体、並びに光ディスク装置
CN1983429A (zh) * 2002-12-17 2007-06-20 日本电气株式会社 光盘、光盘记录/再生装置以及光盘的信号品质评价方法
JP3833998B2 (ja) * 2002-12-20 2006-10-18 株式会社東芝 ディスク装置とディスク記録方法及びディスク
JP4186770B2 (ja) * 2003-09-22 2008-11-26 株式会社日立製作所 情報記録媒体、その制御方法及び情報記録再生方法
US7609595B2 (en) * 2003-10-31 2009-10-27 Pioneer Corporation Defining from a first recording speed a second recording speed for recording on an information recording medium
JP2005149571A (ja) * 2003-11-12 2005-06-09 Matsushita Electric Ind Co Ltd 光ディスク装置の記録方法及び光ディスク装置
JP2005216395A (ja) * 2004-01-30 2005-08-11 Sony Corp 記録媒体評価方法、記録再生装置、記録媒体
JP2006107696A (ja) 2004-09-13 2006-04-20 Ricoh Co Ltd 光情報記録媒体、その記録方法及び試験方法
JP2006092638A (ja) * 2004-09-24 2006-04-06 Hitachi Ltd 記録媒体、情報記録装置、および情報記録方法
US20080084803A1 (en) * 2006-10-04 2008-04-10 Mediatek Inc. Optical Disc Access Apparatus for Evaluating a Disc and Method Thereof
WO2009016754A1 (ja) * 2007-08-01 2009-02-05 Pioneer Corporation 記録装置及び方法、コンピュータプログラム、並びに記録媒体

Also Published As

Publication number Publication date
US20090207705A1 (en) 2009-08-20
CN101681652A (zh) 2010-03-24
CN101681652B (zh) 2012-06-27
EP2244259A1 (en) 2010-10-27
EP2244259A4 (en) 2011-08-24
BRPI0902890A2 (pt) 2017-05-30
CA2686881A1 (en) 2009-08-20
WO2009101796A1 (ja) 2009-08-20
JP5437083B2 (ja) 2014-03-12
JPWO2009101796A1 (ja) 2011-06-09
US7990820B2 (en) 2011-08-02
RU2009138050A (ru) 2011-04-20
KR20100110720A (ko) 2010-10-13

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