DE69424199T2 - Automatische Vorspannungsregelung für einen Fokusservokreis - Google Patents

Automatische Vorspannungsregelung für einen Fokusservokreis

Info

Publication number
DE69424199T2
DE69424199T2 DE69424199T DE69424199T DE69424199T2 DE 69424199 T2 DE69424199 T2 DE 69424199T2 DE 69424199 T DE69424199 T DE 69424199T DE 69424199 T DE69424199 T DE 69424199T DE 69424199 T2 DE69424199 T2 DE 69424199T2
Authority
DE
Germany
Prior art keywords
bias control
servo circuit
focus servo
automatic bias
automatic
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.)
Expired - Lifetime
Application number
DE69424199T
Other languages
English (en)
Other versions
DE69424199D1 (de
Inventor
Kazutoshi Shimizume
Mamoru Akita
Shigeru Inohana
Hidenobu Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE69424199D1 publication Critical patent/DE69424199D1/de
Application granted granted Critical
Publication of DE69424199T2 publication Critical patent/DE69424199T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/094—Methods and circuits for servo offset compensation
DE69424199T 1993-02-05 1994-02-03 Automatische Vorspannungsregelung für einen Fokusservokreis Expired - Lifetime DE69424199T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5042137A JPH06231477A (ja) 1993-02-05 1993-02-05 フォーカスサーボ回路

Publications (2)

Publication Number Publication Date
DE69424199D1 DE69424199D1 (de) 2000-06-08
DE69424199T2 true DE69424199T2 (de) 2001-01-18

Family

ID=12627558

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424199T Expired - Lifetime DE69424199T2 (de) 1993-02-05 1994-02-03 Automatische Vorspannungsregelung für einen Fokusservokreis

Country Status (5)

Country Link
US (1) US5475664A (de)
EP (1) EP0609882B1 (de)
JP (1) JPH06231477A (de)
KR (1) KR100283970B1 (de)
DE (1) DE69424199T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020491A1 (de) * 2005-04-29 2006-11-09 Deutsche Thomson-Brandt Gmbh Verfahren und Anordnung zum Kompensieren von Regelabweichungen in einem Regelkreis mit zyklischen Regelwertveränderungen

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US5729511A (en) 1991-02-15 1998-03-17 Discovision Associates Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal
US5677899A (en) 1991-02-15 1997-10-14 Discovision Associates Method for moving carriage assembly from initial position to target position relative to storage medium
US6236625B1 (en) 1991-02-15 2001-05-22 Discovision Associates Optical disc system having current monitoring circuit with controller for laser driver and method for operating same
KR100340266B1 (ko) * 1993-12-28 2002-12-05 마쯔시다덴기산교 가부시키가이샤 광기록매체,광디스크의재생장치,광디스크의재생방법,광디스크원반의제조방법및불법프로그램동작정지방법
US5568461A (en) * 1994-04-20 1996-10-22 Matsushita Electric Industrial Co., Ltd. Optical information recording and reproducing apparatus
US5663942A (en) * 1994-05-02 1997-09-02 Matsushita Electric Industrial Co., Ltd. Jitter measurement apparatus detecting amplitude of phase errors between information signal and synchronized clock signal
JP2790040B2 (ja) * 1994-05-20 1998-08-27 日本ビクター株式会社 情報記録媒体再生装置
US5627807A (en) * 1994-09-19 1997-05-06 Abe; Tetsuya Optical disk apparatus with focus bias means
JPH08180429A (ja) * 1994-12-22 1996-07-12 Sharp Corp 光情報記録再生装置及び光記録媒体
US6434087B1 (en) 1995-01-25 2002-08-13 Discovision Associates Optical disc system and method for controlling bias coil and light source to process information on a storage medium
US5629912A (en) * 1995-01-30 1997-05-13 Sony Corporation Focusing servo controlling apparatus
CN1110038C (zh) * 1995-01-31 2003-05-28 索尼公司 光记录媒体的再现设备
JP2783185B2 (ja) * 1995-03-22 1998-08-06 日本電気株式会社 光ディスク装置
JP3465413B2 (ja) * 1995-06-16 2003-11-10 ソニー株式会社 光ディスク駆動装置およびフォーカス制御方法
KR0162385B1 (ko) * 1995-08-05 1998-12-15 구자홍 멀티-레이어 디스크의 포커스 서보장치 및 방법
JPH09237424A (ja) * 1995-12-26 1997-09-09 Pioneer Electron Corp フォーカスエラー信号のバイアス量制御装置
JP3661297B2 (ja) * 1996-08-21 2005-06-15 ソニー株式会社 評価信号生成装置、フォーカスバイアス調整方法、スキュー調整方法
US6252835B1 (en) * 1996-09-19 2001-06-26 L G Electronics Inc Apparatus for automatically adjusting focus offset and method thereof in a disc player
JPH10134372A (ja) * 1996-10-31 1998-05-22 Sony Corp 再生装置および方法
KR100240339B1 (ko) * 1997-05-29 2000-01-15 전주범 광디스크 시스템의 포커스 바이어스 조정 장치
US6339565B1 (en) 1999-03-31 2002-01-15 Lsi Logic Corporation Non-linear center-error generator for DVD servo control
JP3872619B2 (ja) * 1999-10-07 2007-01-24 パイオニア株式会社 バイアス電圧制御装置並びに情報再生装置及び情報記録装置
KR100604791B1 (ko) * 1999-11-03 2006-07-31 삼성전자주식회사 광 디스크 재생 시스템의 포커스 바이어스 조정방법 및 장치
WO2002082429A2 (en) 2000-12-14 2002-10-17 Ecd Systems, Inc. Systems and methods for optical media modification
JP3576137B2 (ja) * 2000-12-20 2004-10-13 株式会社ソニー・コンピュータエンタテインメント 光ディスク装置、光ディスク装置のサーボ調整方法、光ディスクのサーボ調整プログラム、及び光ディスクのサーボ調整プログラムを記録したコンピュータ読み取り可能な記録媒体
US7716485B2 (en) 2002-02-01 2010-05-11 Sca Ipla Holdings Inc. Systems and methods for media authentication
JP2004079001A (ja) * 2002-06-17 2004-03-11 Pioneer Electronic Corp 光記録媒体のリンキングずれ検出装置及び方法
KR100422374B1 (ko) * 2003-02-04 2004-03-10 디브이에스 코리아 주식회사 광디스크 드라이브 장치의 재생 제어 방법 및 그 광디스크드라이브 장치
EP1599942A1 (de) * 2003-02-24 2005-11-30 Koninklijke Philips Electronics N.V. Timing-steuerschaltung für eine optischeaufzeichnungsvorrichtung
US20060153039A1 (en) * 2003-06-30 2006-07-13 Looijkens Marinus A H Optical recording apparatus
CN1310220C (zh) 2003-11-17 2007-04-11 威盛电子股份有限公司 产生稳定功率控制信号方法及其装置
TWI261226B (en) * 2004-01-20 2006-09-01 Via Tech Inc Apparatus and method of dynamic adjusting the detection window
TWI261240B (en) 2004-08-17 2006-09-01 Via Tech Inc Method for determining data storage quality of optical disc
JP4783670B2 (ja) * 2006-05-23 2011-09-28 株式会社日立製作所 フォーカス外れ検出装置およびそれを用いた光ディスク装置
US8000193B1 (en) * 2007-12-20 2011-08-16 Marvell International Ltd. Timing recovery for optical disc drive high frequency modulation
US8050157B1 (en) * 2007-12-20 2011-11-01 Marvell International Ltd. Timing recovery for optical disc drive high frequency modulation
US8958276B1 (en) 2012-10-31 2015-02-17 Marvell International Ltd. Optical disc drive high frequency modulation signal detection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755980A (en) * 1985-02-19 1988-07-05 Kabushiki Kaisha Toshiba Optical disk and recording/reproducing device for optical disk
JPH02246026A (ja) * 1989-03-18 1990-10-01 Pioneer Electron Corp フォーカスサーボループのループゲイン設定方法
JP2638279B2 (ja) * 1990-09-28 1997-08-06 ティアツク株式会社 光ディスク装置
DE4102857A1 (de) * 1991-01-31 1992-08-06 Thomson Brandt Gmbh Verfahren zum fokussieren eines lichtstrahls
JP3077771B2 (ja) * 1991-04-09 2000-08-14 ソニー株式会社 フォーカスサーボ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020491A1 (de) * 2005-04-29 2006-11-09 Deutsche Thomson-Brandt Gmbh Verfahren und Anordnung zum Kompensieren von Regelabweichungen in einem Regelkreis mit zyklischen Regelwertveränderungen

Also Published As

Publication number Publication date
KR100283970B1 (ko) 2001-03-02
DE69424199D1 (de) 2000-06-08
EP0609882A1 (de) 1994-08-10
US5475664A (en) 1995-12-12
EP0609882B1 (de) 2000-05-03
JPH06231477A (ja) 1994-08-19

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