DE69320997D1 - Wiedergabegerät - Google Patents

Wiedergabegerät

Info

Publication number
DE69320997D1
DE69320997D1 DE69320997T DE69320997T DE69320997D1 DE 69320997 D1 DE69320997 D1 DE 69320997D1 DE 69320997 T DE69320997 T DE 69320997T DE 69320997 T DE69320997 T DE 69320997T DE 69320997 D1 DE69320997 D1 DE 69320997D1
Authority
DE
Germany
Prior art keywords
playback device
playback
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
DE69320997T
Other languages
English (en)
Other versions
DE69320997T2 (de
Inventor
Nobuyuki Oka
Toshio Sato
Masayuki Mizuki
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
Application granted granted Critical
Publication of DE69320997D1 publication Critical patent/DE69320997D1/de
Publication of DE69320997T2 publication Critical patent/DE69320997T2/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
    • G11B7/09—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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10595—Control of operating function
    • G11B11/10597—Adaptations for transducing various formats on the same or different carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • 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
    • G11B7/0945—Methods for initialising servos, start-up sequences
DE69320997T 1992-08-04 1993-07-28 Wiedergabegerät Expired - Fee Related DE69320997T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22800692 1992-08-04

Publications (2)

Publication Number Publication Date
DE69320997D1 true DE69320997D1 (de) 1998-10-15
DE69320997T2 DE69320997T2 (de) 1999-03-11

Family

ID=16869705

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69320997T Expired - Fee Related DE69320997T2 (de) 1992-08-04 1993-07-28 Wiedergabegerät
DE69317831T Expired - Fee Related DE69317831T2 (de) 1992-08-04 1993-07-28 Wiedergabegerät

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69317831T Expired - Fee Related DE69317831T2 (de) 1992-08-04 1993-07-28 Wiedergabegerät

Country Status (4)

Country Link
US (1) US5463602A (de)
EP (2) EP0586084B1 (de)
KR (1) KR100275061B1 (de)
DE (2) DE69320997T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
KR0133982B1 (ko) * 1994-04-13 1998-04-22 김광호 픽업장치의 초기위치 설정방법
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
CN1110038C (zh) * 1995-01-31 2003-05-28 索尼公司 光记录媒体的再现设备
US5978329A (en) 1995-06-07 1999-11-02 Discovision Associates Technique for closed loop servo operation in optical disc tracking control
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
JP3525572B2 (ja) * 1995-09-12 2004-05-10 松下電器産業株式会社 媒体自動交換装置および記録再生装置
ATE201277T1 (de) 1995-12-06 2001-06-15 Discovision Ass Gerät und verfahren zum regeln der fokussierung
US5892743A (en) * 1996-04-02 1999-04-06 Matsushita Electric Industrial Co., Ltd. Information reproducing method and apparatus with servo characteristic change for sound reproduction
TW385435B (en) * 1996-05-30 2000-03-21 Hitachi Ltd An optical disk discriminating system of optical disk apparatus
US5959280A (en) * 1997-01-16 1999-09-28 Laser Dynamics, Inc. Multi-standard optical disk reading apparatus and method of reading using same
US20050058039A1 (en) * 1997-01-16 2005-03-17 Yasuo Kamatani Multi-standard optical disk and method and apparatus of reading from and recording to the disk
WO1999017283A1 (en) * 1997-09-26 1999-04-08 Daewoo Electronics Co., Ltd. Method and apparatus for automatically adjusting a focus bias voltage
MY118961A (en) * 1998-09-03 2005-02-28 Sony Corp Beam irradiation apparatus, optical apparatus having beam irradiation apparatus for information recording medium, method for manufacturing original disk for information recording medium, and method for manufacturing information recording medium
JP3856989B2 (ja) * 1999-06-30 2006-12-13 パイオニア株式会社 記録再生装置及び自動フォーカスバイアス調整方法
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
JP3917878B2 (ja) * 2002-02-28 2007-05-23 富士通株式会社 光記憶装置及び、その最適フォーカスオフセット値決定方法
KR20080021157A (ko) * 2005-06-30 2008-03-06 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학 드라이브 시스템의 포커스 제어 루프를 서서히 닫는방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755548A (en) * 1980-09-19 1982-04-02 Fujitsu Ltd Magnetic disk device
JPS58121137A (ja) * 1982-01-09 1983-07-19 Sony Corp 光学式デイスク再生装置のフオ−カス引込み回路
US5289451A (en) * 1984-11-29 1994-02-22 Canon Kabushiki Kaisha Optical information recording/reproduction apparatus including means for detecting the type of recording medium
JPS61188745A (ja) * 1985-02-15 1986-08-22 Olympus Optical Co Ltd フオ−カスサ−ボ制御方式
JPH0736233B2 (ja) * 1985-04-16 1995-04-19 オリンパス光学工業株式会社 光学的情報記録再生装置
CA1261467A (en) * 1985-11-28 1989-09-26 Akira Minami Focus servomechanism control system of optical disc system having offset setting means
US5173886A (en) * 1986-02-07 1992-12-22 Matsushita Electric Industrial Co., Ltd. Composite optical disc having both a data read-only area and a data rewritable area, and a recording/reproducing system for use therewith
JPS63109366U (de) * 1986-12-27 1988-07-14
JPH02294938A (ja) * 1989-05-09 1990-12-05 Olympus Optical Co Ltd 光学式情報記録再生装置
JPH03130972A (ja) * 1989-10-16 1991-06-04 Matsushita Electric Ind Co Ltd トラック検索装置及びトラッキング制御装置
KR100254716B1 (ko) * 1990-04-05 2000-05-01 이데이 노부유끼 광학식 디스크상의 정보기록 및 재생장치
JP2809835B2 (ja) * 1990-07-30 1998-10-15 松下電器産業株式会社 光ディスク装置および光ディスク

Also Published As

Publication number Publication date
EP0782133B1 (de) 1998-09-09
KR940006095A (ko) 1994-03-23
DE69317831D1 (de) 1998-05-14
DE69320997T2 (de) 1999-03-11
US5463602A (en) 1995-10-31
DE69317831T2 (de) 1998-08-06
EP0586084A2 (de) 1994-03-09
KR100275061B1 (en) 2000-12-15
EP0782133A1 (de) 1997-07-02
EP0586084A3 (de) 1994-08-03
EP0586084B1 (de) 1998-04-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee