DE69022289T2 - Aufzeichnungs- und Wiedergabegerät mit einem magnetooptischen Medium. - Google Patents

Aufzeichnungs- und Wiedergabegerät mit einem magnetooptischen Medium.

Info

Publication number
DE69022289T2
DE69022289T2 DE69022289T DE69022289T DE69022289T2 DE 69022289 T2 DE69022289 T2 DE 69022289T2 DE 69022289 T DE69022289 T DE 69022289T DE 69022289 T DE69022289 T DE 69022289T DE 69022289 T2 DE69022289 T2 DE 69022289T2
Authority
DE
Germany
Prior art keywords
magneto
recording
playback device
optical medium
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
DE69022289T
Other languages
English (en)
Other versions
DE69022289D1 (de
Inventor
Ryoichi Imanaka
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP13491589A external-priority patent/JP2712563B2/ja
Priority claimed from JP18287689A external-priority patent/JPH0346146A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69022289D1 publication Critical patent/DE69022289D1/de
Application granted granted Critical
Publication of DE69022289T2 publication Critical patent/DE69022289T2/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
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • G11B11/1051—Recording by modulating both the magnetic field and the light beam at the transducers
    • G11B11/10513—Recording by modulating both the magnetic field and the light beam at the transducers one of the light beam or the magnetic field being modulated by data and the other by a clock or frequency generator
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10517—Overwriting or erasing
    • 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
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
DE69022289T 1989-05-29 1990-05-25 Aufzeichnungs- und Wiedergabegerät mit einem magnetooptischen Medium. Expired - Fee Related DE69022289T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13491589A JP2712563B2 (ja) 1989-05-29 1989-05-29 記録装置
JP18287689A JPH0346146A (ja) 1989-07-14 1989-07-14 記録再生装置

Publications (2)

Publication Number Publication Date
DE69022289D1 DE69022289D1 (de) 1995-10-19
DE69022289T2 true DE69022289T2 (de) 1996-03-21

Family

ID=26468905

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022289T Expired - Fee Related DE69022289T2 (de) 1989-05-29 1990-05-25 Aufzeichnungs- und Wiedergabegerät mit einem magnetooptischen Medium.

Country Status (3)

Country Link
US (1) US5208792A (de)
EP (1) EP0400927B1 (de)
DE (1) DE69022289T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103854A1 (de) * 1991-02-08 1992-08-27 Thomson Brandt Gmbh Optische abtastvorrichtung
JP3057518B2 (ja) * 1991-02-13 2000-06-26 ソニー株式会社 光記録媒体の信号再生方法
US5327417A (en) * 1991-09-27 1994-07-05 Nsk Ltd. Optical disk drive and read/write apparatus
JP3095546B2 (ja) * 1992-09-10 2000-10-03 キヤノン株式会社 光学的情報記録再生装置
US5363200A (en) * 1992-09-15 1994-11-08 Samsung Electronics Co., Ltd. Buffering method and system for resonant scanner used to read and write data with respect to a storage medium
JP3183364B2 (ja) * 1992-10-12 2001-07-09 キヤノン株式会社 光学的情報記録再生方式
JP3476879B2 (ja) * 1992-12-09 2003-12-10 パイオニア株式会社 複数の読取または記録ビームを有する光ディスク情報記録装置及び再生装置
US5381390A (en) * 1993-06-03 1995-01-10 Eastman Kodak Company Directly overwrite information by using two radiation beams onto a single magneto-optical recording
JP3287648B2 (ja) * 1993-06-07 2002-06-04 株式会社リコー 相変化型情報記録媒体の記録同時ベリファイ方法及び相変化型情報記録ドライブ装置
US5535179A (en) * 1993-08-10 1996-07-09 Asahi Kogaku Kogyo Kabushiki Kaisha Magneto-optic disc apparatus with signal detector for detecting recorded signals based on split beams
US5566150A (en) * 1994-09-26 1996-10-15 Martin Marietta Corporation Multibeam optical apparatus and method for tracking control for an optical disk having a set of tracks
US5561655A (en) * 1994-12-02 1996-10-01 Eastman Kodak Company Apparatus and method for differential tracking in a magneto-optic data storage system using mark edge detection
JP3129629B2 (ja) * 1995-04-03 2001-01-31 シャープ株式会社 光ディスク装置
KR100224915B1 (ko) * 1996-10-29 1999-10-15 윤종용 다중 트랙 스캔 가능한 광픽업의 트랙 스캔방법
JP3547589B2 (ja) * 1997-06-27 2004-07-28 パイオニア株式会社 高速データ再生方法
JP3325505B2 (ja) * 1997-11-14 2002-09-17 松下電器産業株式会社 光ディスク装置信号処理方法と光ディスク装置
JPH11232662A (ja) * 1998-02-13 1999-08-27 Pioneer Electron Corp 記録情報読取方法及び記録情報再生装置
US6947364B1 (en) * 2000-05-15 2005-09-20 Hewlett-Packard Development Company, L.P. Detecting track jumps during reading or writing of data on an optical disk
US6985414B2 (en) * 2001-01-08 2006-01-10 Dragsholm Wireless Holdings Llc Method and apparatus for writing on an optical disk with beam spots aligned at an angle to data tracks
US7187819B1 (en) 2003-12-31 2007-03-06 Storage Technology Corporation Optical power distribution management and apparatus

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130240A (en) * 1981-02-05 1982-08-12 Olympus Optical Co Ltd Optical information recording and reproducing device and information recording medium for it
JPS59121559A (ja) * 1982-12-28 1984-07-13 Canon Inc 情報記録再生方式
JPS6093646A (ja) * 1983-10-26 1985-05-25 Seiko Epson Corp 光メモリ記録再生装置
JPH0612580B2 (ja) * 1985-02-12 1994-02-16 キヤノン株式会社 光磁気記録装置
JP2517898B2 (ja) * 1985-04-20 1996-07-24 ソニー株式会社 光学記録方法及びその装置
JPH0721897B2 (ja) * 1986-04-24 1995-03-08 インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション 光磁気データ記録装置
JP2575120B2 (ja) * 1986-07-31 1997-01-22 ソニー株式会社 光磁気記録装置
JPH0828046B2 (ja) * 1987-01-30 1996-03-21 オリンパス光学工業株式会社 カ−ド状記録媒体へのデ−タ記録方法
DE3804701A1 (de) * 1987-03-20 1988-09-29 Hitachi Ltd Mehrfachlichtfleck-lageregeleinrichtung
EP0309200B1 (de) * 1987-09-22 1993-12-01 Hitachi Maxell Ltd. Optisches Informationsaufzeichnungs-/wiedergabegerät
US5043960A (en) * 1987-09-25 1991-08-27 Hitachi, Ltd. Overwritable magneto-optic recording and reproducing apparatus
JP2745518B2 (ja) * 1988-01-29 1998-04-28 松下電器産業株式会社 記録方式および記録装置
JP2701403B2 (ja) * 1988-12-29 1998-01-21 ソニー株式会社 光磁気デイスク装置

Also Published As

Publication number Publication date
US5208792A (en) 1993-05-04
EP0400927B1 (de) 1995-09-13
DE69022289D1 (de) 1995-10-19
EP0400927A2 (de) 1990-12-05
EP0400927A3 (de) 1991-09-11

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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