DE69222210D1 - Verfahren und Schaltung zur Korrektur des Nullkreuzungssignals in einem optischen Scheibensystem - Google Patents

Verfahren und Schaltung zur Korrektur des Nullkreuzungssignals in einem optischen Scheibensystem

Info

Publication number
DE69222210D1
DE69222210D1 DE69222210T DE69222210T DE69222210D1 DE 69222210 D1 DE69222210 D1 DE 69222210D1 DE 69222210 T DE69222210 T DE 69222210T DE 69222210 T DE69222210 T DE 69222210T DE 69222210 D1 DE69222210 D1 DE 69222210D1
Authority
DE
Germany
Prior art keywords
correcting
circuit
optical disk
zero crossing
disk system
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 - Fee Related
Application number
DE69222210T
Other languages
English (en)
Other versions
DE69222210T2 (de
Inventor
Hidekazu Takata
Shigenori Yanagi
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.)
Panasonic Corp
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69222210D1 publication Critical patent/DE69222210D1/de
Publication of DE69222210T2 publication Critical patent/DE69222210T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
DE69222210T 1991-03-19 1992-03-16 Verfahren und Schaltung zur Korrektur des Nullkreuzungssignals in einem optischen Scheibensystem Expired - Fee Related DE69222210T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3080970A JP2693281B2 (ja) 1991-03-19 1991-03-19 光ディスク装置のシーク制御方法及びその回路

Publications (2)

Publication Number Publication Date
DE69222210D1 true DE69222210D1 (de) 1997-10-23
DE69222210T2 DE69222210T2 (de) 1998-01-15

Family

ID=13733375

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69222210T Expired - Fee Related DE69222210T2 (de) 1991-03-19 1992-03-16 Verfahren und Schaltung zur Korrektur des Nullkreuzungssignals in einem optischen Scheibensystem

Country Status (4)

Country Link
US (1) US5457671A (de)
EP (1) EP0505252B1 (de)
JP (1) JP2693281B2 (de)
DE (1) DE69222210T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05205416A (ja) * 1991-10-18 1993-08-13 Internatl Business Mach Corp <Ibm> 媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法
JP2940891B2 (ja) * 1991-12-12 1999-08-25 富士通株式会社 光ディスクのトラック検索装置
JP2699842B2 (ja) * 1993-12-16 1998-01-19 日本電気株式会社 速度検出回路
JP2802479B2 (ja) * 1994-08-09 1998-09-24 富士通株式会社 光ディスク装置
US5675562A (en) 1995-03-20 1997-10-07 Fujitsu Limited Seek control method in optical storage device
US5742568A (en) * 1995-06-09 1998-04-21 Olympus Optical Co., Ltd. Tracking controller and seek controller for optical recording device
JP3815809B2 (ja) * 1995-08-07 2006-08-30 富士通株式会社 光学的記憶装置
KR100280868B1 (ko) * 1996-05-09 2001-02-01 윤종용 트랙크로스신호 보정장치
JP3791723B2 (ja) * 1997-08-28 2006-06-28 富士通株式会社 光学的記憶装置
US5914922A (en) * 1997-12-12 1999-06-22 Cirrus Logic, Inc. Generating a quadrature seek signal from a discrete-time tracking error signal and a discrete-time RF data signal in an optical storage device
JP2000285479A (ja) * 1999-03-31 2000-10-13 Fujitsu Ltd 情報記憶装置
JP3530429B2 (ja) * 1999-09-03 2004-05-24 三洋電機株式会社 ディスク装置
US6473369B1 (en) * 1999-12-23 2002-10-29 Oak Technology, Inc. Methods and apparatus for regenerating track crossing signals for searches across unrecorded areas on read/write optical discs
KR20010059876A (ko) * 1999-12-30 2001-07-06 구자홍 광 기록재생기의 제어 방법
TWI223796B (en) * 2002-05-23 2004-11-11 Via Optical Solution Inc Control method for switching actuating modes
TW594694B (en) 2002-09-13 2004-06-21 Mediatek Inc Method for counting number of tracks of an optical disc in an optical disc system
TWI229331B (en) * 2003-10-22 2005-03-11 Mediatek Inc Compensation method for detecting seeking speed of optical disk device

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145576A (ja) * 1984-01-10 1985-08-01 Canon Inc 光学情報記録再生装置のトラックシーク方法
JPS60171637A (ja) * 1984-02-15 1985-09-05 Fujitsu Ltd 横断トラツク数カウント回路
JPH0760574B2 (ja) * 1984-03-26 1995-06-28 株式会社日立製作所 光デイスク装置のセクタ開始信号発生回路
JPS60256991A (ja) * 1984-06-01 1985-12-18 Matsushita Electric Ind Co Ltd 情報トラックの検索装置
US4833664A (en) * 1985-01-31 1989-05-23 Matsushita Electric Industrial Co., Ltd. Servo system for scanning the same track circumference of a spiral track on a disc shaped recording medium
JPS62180568A (ja) * 1986-02-04 1987-08-07 Sony Corp デイスク状記録媒体の欠陥検出装置
US4872155A (en) * 1987-03-13 1989-10-03 Pioneer Electronic Corporation Clock generator circuit and a synchronizing signal detection method in a sampled format system and a phase comparator circuit suited for generation of the clock
JPH0748257B2 (ja) * 1987-05-07 1995-05-24 富士通株式会社 光ディスク装置のマルチトラックジャンプ回路
JPH0668889B2 (ja) * 1987-07-20 1994-08-31 沖電気工業株式会社 トラックシ−ク装置
US4989190A (en) * 1987-07-20 1991-01-29 Oki Electric Industry Co., Ltd. Apparatus for seeking a track of an optical disk in which information is recorded
JPH0719452B2 (ja) * 1987-07-20 1995-03-06 沖電気工業株式会社 トラックシ−ク装置
JPH0719453B2 (ja) * 1987-08-07 1995-03-06 キヤノン株式会社 情報記録再生装置のトラックアクセス方法
JPH0198169A (ja) * 1987-10-09 1989-04-17 Matsushita Electric Ind Co Ltd トラック検索装置
JPH01223675A (ja) * 1988-03-01 1989-09-06 Nec Corp シーク制御回路
JPH01276474A (ja) * 1988-04-27 1989-11-07 Olympus Optical Co Ltd 情報記録再生装置のトラック検索制御装置
JPH01277378A (ja) * 1988-04-28 1989-11-07 Olympus Optical Co Ltd トラッククロス信号計数装置
JP2732591B2 (ja) * 1988-06-30 1998-03-30 株式会社東芝 記録媒体処理装置
JPH0258736A (ja) * 1988-08-24 1990-02-27 Nec Corp トラック横断検出方式
US5146440A (en) * 1988-08-29 1992-09-08 Matsushita Electric Industrial Co., Ltd. Track search apparatus
JPH02137129A (ja) * 1988-11-17 1990-05-25 Mitsubishi Electric Corp 光ディスク駆動装置
US5172353A (en) * 1989-03-02 1992-12-15 Olympus Optical Co., Ltd. Track seeking control apparatus for use in data recording/reproduction systems having data tracks thereon
US5157645A (en) * 1989-04-06 1992-10-20 Kabushiki Kaisha Toshiba Optical disk unit
US5038333A (en) * 1989-05-05 1991-08-06 International Business Machines Corporation Positioning systems including reliable track crossing detection for high speed relative motions
KR930003191B1 (ko) * 1991-01-25 1993-04-23 삼성전자 주식회사 콤팩트 디스크 플레이어의 트래킹 안정장치

Also Published As

Publication number Publication date
JPH04291025A (ja) 1992-10-15
JP2693281B2 (ja) 1997-12-24
EP0505252A3 (en) 1992-12-09
DE69222210T2 (de) 1998-01-15
US5457671A (en) 1995-10-10
EP0505252B1 (de) 1997-09-17
EP0505252A2 (de) 1992-09-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

8339 Ceased/non-payment of the annual fee