DE69018150D1 - Optisches Aufzeichnungs- und/oder Wiedergabegerät. - Google Patents

Optisches Aufzeichnungs- und/oder Wiedergabegerät.

Info

Publication number
DE69018150D1
DE69018150D1 DE69018150T DE69018150T DE69018150D1 DE 69018150 D1 DE69018150 D1 DE 69018150D1 DE 69018150 T DE69018150 T DE 69018150T DE 69018150 T DE69018150 T DE 69018150T DE 69018150 D1 DE69018150 D1 DE 69018150D1
Authority
DE
Germany
Prior art keywords
optical recording
reproducing device
reproducing
recording
optical
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
DE69018150T
Other languages
English (en)
Other versions
DE69018150T2 (de
Inventor
Kiyoshi Ohsato
Toshiki Udagawa
Hitoshi Okada
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 DE69018150D1 publication Critical patent/DE69018150D1/de
Application granted granted Critical
Publication of DE69018150T2 publication Critical patent/DE69018150T2/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
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs
    • 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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69018150T 1989-07-24 1990-07-18 Optisches Aufzeichnungs- und/oder Wiedergabegerät. Expired - Fee Related DE69018150T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1190881A JPH0354737A (ja) 1989-07-24 1989-07-24 光学記録および／または再生装置

Publications (2)

Publication Number Publication Date
DE69018150D1 true DE69018150D1 (de) 1995-05-04
DE69018150T2 DE69018150T2 (de) 1995-08-03

Family

ID=16265302

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69018150T Expired - Fee Related DE69018150T2 (de) 1989-07-24 1990-07-18 Optisches Aufzeichnungs- und/oder Wiedergabegerät.

Country Status (6)

Country Link
US (1) US5168487A (de)
EP (1) EP0410639B1 (de)
JP (1) JPH0354737A (de)
KR (1) KR910003614A (de)
DE (1) DE69018150T2 (de)
MY (1) MY106732A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258879A (en) * 1991-02-13 1993-11-02 Matsushita Electric Industrial Co., Inc. Tracking error detection circuit of magnetic recording and reproduction apparatus for determining tracking error based on pilot signals recorded on a recording meedium
US5425012A (en) * 1992-06-01 1995-06-13 Olympus Optical Co., Ltd. Track detector circuit for detecting a track when at least either optical recording or regenaration is performed on a card-like information recording medium
JP3186221B2 (ja) * 1992-06-02 2001-07-11 パイオニア株式会社 光学式記録情報再生装置
JPH06342522A (ja) * 1993-05-18 1994-12-13 Nec Corp 光ディスクのクロストークキャンセル装置
US5519679A (en) * 1994-10-12 1996-05-21 Eastman Kodak Company Apparatus and method for multi-spot sampled tracking in an optical data storage system
JPH08263855A (ja) * 1995-03-23 1996-10-11 Nec Corp 光学ヘッド用移送制御装置
JPH09161322A (ja) * 1995-12-04 1997-06-20 Lg Electron Inc 光ディスク及び光ディスク記録再生装置
KR0176888B1 (ko) * 1996-01-24 1999-04-15 구자홍 광디스크 기록재생기의 서보 제어 장치
DE19756457A1 (de) * 1997-12-18 1999-06-24 Thomson Brandt Gmbh Verfahren zur Korrektur eines Spurfehlersignals beim optischen Abtasten eines plattenförmigen Aufzeichnungsträgers
JP2001307352A (ja) * 2000-04-20 2001-11-02 Sony Corp 光学ピックアップ装置のトラッキングサーボ方法
TW508569B (en) * 2001-05-15 2002-11-01 Media Tek Inc Gain calibration device and method for differential push-pull tracking error signal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2548106B2 (ja) * 1984-05-23 1996-10-30 ソニー株式会社 光学式デイスクプレ−ヤのトラツキング・サ−ボコントロ−ル装置
JPS6139940A (ja) * 1984-07-31 1986-02-26 Pioneer Electronic Corp 光情報デイスク再生装置
JPS6194246A (ja) * 1984-10-15 1986-05-13 Sony Corp 光学式ヘッドのトラッキング誤差検出方法
NL8602911A (nl) * 1986-11-17 1988-06-16 Philips Nv Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager.
JPS63160022A (ja) * 1986-12-23 1988-07-02 Nippon Columbia Co Ltd 光デイスク装置
JP2689545B2 (ja) * 1988-12-08 1997-12-10 ソニー株式会社 アクセス速度検出装置

Also Published As

Publication number Publication date
JPH0354737A (ja) 1991-03-08
EP0410639A2 (de) 1991-01-30
MY106732A (en) 1995-07-31
US5168487A (en) 1992-12-01
KR910003614A (ko) 1991-02-28
DE69018150T2 (de) 1995-08-03
EP0410639A3 (en) 1992-05-06
EP0410639B1 (de) 1995-03-29

Similar Documents

Publication Publication Date Title
DE3777461D1 (de) Optisches aufzeichnungs-und wiedergabegeraet.
DE69011759D1 (de) Magneto-optisches Aufnahme- und/oder Wiedergabegerät.
DE68911331D1 (de) Aufzeichnungs- und Wiedergabegerät.
DE3888565D1 (de) Aufzeichnungs- und Wiedergabegerät.
DE69021227D1 (de) Daten-Aufzeichnungs- und -Wiedergabegerät.
DE3750173D1 (de) Aufnahme- und Wiedergabegerät.
DE69012945D1 (de) Optische aufzeichnungs- und/oder -wiedergabegerät.
DE58907308D1 (de) Optisches aufzeichnungs- und/oder wiedergabe-gerät.
DE3584615D1 (de) Optische aufnahme- und wiedergabevorrichtung.
DE69019248D1 (de) Optisches Aufnahme- und/oder Wiedergabegerät.
DE3684663D1 (de) Optisches informationsaufnahme- und -wiedergabegeraet.
DE3771527D1 (de) Aufzeichnungs- und/oder wiedergabegeraet.
DE69017937D1 (de) Tragbares Aufzeichnungs- und/oder Wiedergabegerät.
DE69024416D1 (de) Optisches Aufzeichnungs- und Wiedergabegerät
DE3780866D1 (de) Optisches informations-aufzeichnungs- und wiedergabegeraet.
DE3774589D1 (de) Aufzeichnungs- und/oder wiedergabegeraet.
DE69025276D1 (de) Optisches Speicher- und Informationsverarbeitungsgerät
DE3870339D1 (de) Optisches aufzeichnungs- und wiedergabegeraet.
DE68914550D1 (de) Optisches Datenaufzeichnungs- und -wiedergabegerät.
DE69024739D1 (de) Optisches Aufnahme-/Wiedergabegerät
DE69018150D1 (de) Optisches Aufzeichnungs- und/oder Wiedergabegerät.
DE59202739D1 (de) Optisches aufzeichnungs- und/oder wiedergabegerät.
DE3779668D1 (de) Aufnahme- und/oder wiedergabegeraet.
DE3887242D1 (de) Optisches Informationsaufzeichnungs und -wiedergabegerät.
DE68918679D1 (de) Optisches Plattenaufzeichnungs- und/oder -wiedergabegerät.

Legal Events

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