WO2009041011A1 - 再生信号評価方法 - Google Patents

再生信号評価方法 Download PDF

Info

Publication number
WO2009041011A1
WO2009041011A1 PCT/JP2008/002616 JP2008002616W WO2009041011A1 WO 2009041011 A1 WO2009041011 A1 WO 2009041011A1 JP 2008002616 W JP2008002616 W JP 2008002616W WO 2009041011 A1 WO2009041011 A1 WO 2009041011A1
Authority
WO
WIPO (PCT)
Prior art keywords
sampling
identification system
evaluation method
reproduced signal
data obtained
Prior art date
Application number
PCT/JP2008/002616
Other languages
English (en)
French (fr)
Inventor
Takashi Kikukawa
Original Assignee
Tdk 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 Tdk Corporation filed Critical Tdk Corporation
Publication of WO2009041011A1 publication Critical patent/WO2009041011A1/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
    • 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
    • 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
    • G11B20/10101—PR2 or PR(1,2,1), i.e. partial response class 2, polynomial (1+D)2=1+2D+D2
    • 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
    • G11B20/1012—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 partial response PR(1,2,2,2,1)
    • 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
    • G11B20/10481—Improvement or modification of read or write signals optimisation methods
    • 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

Abstract

　レーザー光を対物レンズを介して媒体に照射し、反射光から得るデータをＰＲＭＬ識別方式によって再生する再生信号を評価する際に、クロックタイミング毎にレーザー光の反射光から得るデータをサンプリングしてサンプリング値を得るサンプリングステップと、ＰＲＭＬ識別方式のＰＲクラスの拘束長が偶数となる場合に、クロックタイミング順に隣り合う２つのサンプリング値を少なくとも利用して、評価用の中間サンプリング値を算出するステップを備えるようにする。これにより、ＰＲＭＬ識別方式を利用する場合の客観的な評価方法を提供し、記録媒体や再生装置の選定を容易化する。
PCT/JP2008/002616 2007-09-26 2008-09-22 再生信号評価方法 WO2009041011A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007249639A JP5012366B2 (ja) 2007-09-26 2007-09-26 再生信号評価方法
JP2007-249639 2007-09-26

Publications (1)

Publication Number Publication Date
WO2009041011A1 true WO2009041011A1 (ja) 2009-04-02

Family

ID=40471443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002616 WO2009041011A1 (ja) 2007-09-26 2008-09-22 再生信号評価方法

Country Status (3)

Country Link
US (2) US8081555B2 (ja)
JP (1) JP5012366B2 (ja)
WO (1) WO2009041011A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI440021B (zh) * 2012-03-09 2014-06-01 Sunplus Technology Co Ltd 資料擷取裝置與方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1021651A (ja) * 1996-07-04 1998-01-23 Sony Corp 情報記録再生装置の余裕度検出装置
JPH10334605A (ja) * 1997-05-27 1998-12-18 Sony Corp 情報再生装置および再生方法
JP2004158090A (ja) * 2002-11-05 2004-06-03 Matsushita Electric Ind Co Ltd データ再生装置
JP2007149180A (ja) * 2005-11-25 2007-06-14 Hitachi Ltd 光ディスク装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6421651A (en) 1987-07-17 1989-01-25 Fanuc Ltd Memory device
US5488591A (en) * 1993-12-24 1996-01-30 Seiko Epson Corporation Improved magneto-optical recording apparatus for digital signal information
US5935791A (en) 1997-09-23 1999-08-10 Becton, Dickinson And Company Detection of nucleic acids by fluorescence quenching
JP2002230904A (ja) * 2000-11-30 2002-08-16 Matsushita Electric Ind Co Ltd 情報再生装置
CN1181472C (zh) 2000-11-30 2004-12-22 松下电器产业株式会社 信息再现装置
JP2002230907A (ja) 2001-01-31 2002-08-16 Ricoh Co Ltd 情報再生装置と情報再生方法とプログラム
JP3657901B2 (ja) * 2001-10-10 2005-06-08 株式会社東芝 光ディスク装置
JP3668202B2 (ja) 2002-03-13 2005-07-06 株式会社東芝 情報記録再生装置及びその信号評価方法
JP3762356B2 (ja) * 2002-10-31 2006-04-05 株式会社東芝 光ディスク装置
JP4554972B2 (ja) * 2003-04-11 2010-09-29 日本電気株式会社 光学情報媒体の再生信号等化方法及び光学情報記録再生装置
US8059511B2 (en) * 2006-12-05 2011-11-15 Pioneer Corporation Device and method for reproducing information, and computer program
JP4861432B2 (ja) * 2006-12-05 2012-01-25 パイオニア株式会社 情報再生装置及び方法、並びにコンピュータプログラム
JP4861435B2 (ja) * 2006-12-05 2012-01-25 パイオニア株式会社 情報再生装置及び方法、並びにコンピュータプログラム
JP2022030904A (ja) 2020-08-07 2022-02-18 ミツミ電機株式会社 回転往復駆動アクチュエーター

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1021651A (ja) * 1996-07-04 1998-01-23 Sony Corp 情報記録再生装置の余裕度検出装置
JPH10334605A (ja) * 1997-05-27 1998-12-18 Sony Corp 情報再生装置および再生方法
JP2004158090A (ja) * 2002-11-05 2004-06-03 Matsushita Electric Ind Co Ltd データ再生装置
JP2007149180A (ja) * 2005-11-25 2007-06-14 Hitachi Ltd 光ディスク装置

Also Published As

Publication number Publication date
US20120069727A1 (en) 2012-03-22
US8081555B2 (en) 2011-12-20
US20090080320A1 (en) 2009-03-26
JP5012366B2 (ja) 2012-08-29
JP2009080889A (ja) 2009-04-16
US8385174B2 (en) 2013-02-26

Similar Documents

Publication Publication Date Title
DK1607969T3 (da) Optagelsesmedium af engangsskrivningstype, optagelsesindretning og optagelsesfremgangsmåde til optagelsesmedium af engangsskrivningstype, samt gengivelsesindretning og gengivelsesfremgangsmåde til optagelsesmedium af engangsskrivningstype
TW200630984A (en) Optical disc and optical disc apparatus
MX2010002253A (es) Metodo de evaluacion de señal reproducida, dispositivo de evaluacion de señal reproducida y dispositivo de disco optico equipado con los mismos.
TW200721144A (en) Optical recording method, optical recording apparatus, optical recording medium and optical recording regeneration method
EP1494217A4 (en) OPTICAL INFORMATION DEVICE, OPTICAL STORAGE MEDIUM, OPTICAL STORAGE MEDIUM INSPECTION DEVICE, AND OPTICAL STORAGE INSPECTION METHOD
TW200703277A (en) Evaluation apparatus, evaluation method, and optical disk manufacturing method
TW200721139A (en) Method and apparatus for recording and reproducing signal on and from optical information recording medium
WO2008032700A9 (ja) 光学的情報記録再生装置及び記録マーク品質測定方法
EP1981024A4 (en) OPTICAL RECORDING / REPRODUCING DEVICE, OPTICAL RECORDING METHOD AND OPTICAL PLAYING METHOD
EP1607942A4 (en) OPTICAL INFORMATION RECORDING DEVICE, OPTICAL RECORDING INFORMATION MEDIUM, OPTICAL INFORMATION RECORDING METHOD, PROGRAM, AND COMPUTER READABLE INFORMATION MEDIUM
TW200639826A (en) Optical recording method and optical recoridng regeneration device
NL1030397A1 (nl) Werkwijze voor het bepalen van een type van een optische schijf, en een dataopname en/of weergave inrichting daarvoor.
WO2009041011A1 (ja) 再生信号評価方法
DE602006014905D1 (de) Aufzeichnungs/Wiedergabegerät für optische Platten, welches eine Festplatte enthält
BRPI0917413A2 (pt) método de medição de meio de informação óptica, meio de informação óptica, aparelho de gravação e aparelho de reprodução
TW200641808A (en) Methods for tuning write strategy parameters utilizing data-to-clock edge deviations, and systems thereof
WO2008139784A1 (ja) 光ディスク再生光量設定方法及び光ディスク装置
WO2007138479A3 (en) Circuits, architectures, apparatuses, systems, algorithms and methods and software for optimum power calibration for optical disc recording
EP1926092A4 (en) OPTICAL RECORDING METHOD, OPTICAL RECORDER, OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING / REPRODUCING METHOD
WO2009084843A3 (en) Method of reading optical information and method of recording optical information
EP2053604A4 (en) OPTICAL INFORMATION RECORDING / REPRODUCING DEVICE, OPTICAL INFORMATION RECORDING / REPRODUCING METHOD, AND CONTROL CIRCUIT
TW200733093A (en) Optical pickup, information processing apparatus and signal processing method
JP2008310922A5 (ja)
BRPI0905745A2 (pt) Método de avaliação de sinal de reprodução, meio de gravação de informações, aparelho de reprodução e aparelho de gravação
EP2287839A4 (en) OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE, OPTICAL INFORMATION INFORMATION RECORDING AND REPRODUCING METHOD, OPTICAL INFORMATION RECORDING MEDIUM, AND SOLID IMMERSION LENS

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08834459

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08834459

Country of ref document: EP

Kind code of ref document: A1