DE69319773T2 - Magnetkopfverwendende magneto-optische Informationsaufnahme und -wiedergabegerät und -verfahren - Google Patents

Magnetkopfverwendende magneto-optische Informationsaufnahme und -wiedergabegerät und -verfahren

Info

Publication number
DE69319773T2
DE69319773T2 DE69319773T DE69319773T DE69319773T2 DE 69319773 T2 DE69319773 T2 DE 69319773T2 DE 69319773 T DE69319773 T DE 69319773T DE 69319773 T DE69319773 T DE 69319773T DE 69319773 T2 DE69319773 T2 DE 69319773T2
Authority
DE
Germany
Prior art keywords
magneto
information recording
magnetic head
reproducing apparatus
optical information
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
DE69319773T
Other languages
English (en)
Other versions
DE69319773D1 (de
Inventor
Masahisa Fujino
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP10404492A external-priority patent/JP2970788B2/ja
Priority claimed from JP10404392A external-priority patent/JP2970787B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE69319773D1 publication Critical patent/DE69319773D1/de
Application granted granted Critical
Publication of DE69319773T2 publication Critical patent/DE69319773T2/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
    • 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
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10573—Control of relative positioning of the magnetic and optical transducers, e.g. to move simultaneously
DE69319773T 1992-03-31 1993-03-24 Magnetkopfverwendende magneto-optische Informationsaufnahme und -wiedergabegerät und -verfahren Expired - Lifetime DE69319773T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10404492A JP2970788B2 (ja) 1992-03-31 1992-03-31 対物レンズ制御システム
JP10404392A JP2970787B2 (ja) 1992-03-31 1992-03-31 対物レンズ制御システム

Publications (2)

Publication Number Publication Date
DE69319773D1 DE69319773D1 (de) 1998-08-27
DE69319773T2 true DE69319773T2 (de) 1999-01-07

Family

ID=26444598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69319773T Expired - Lifetime DE69319773T2 (de) 1992-03-31 1993-03-24 Magnetkopfverwendende magneto-optische Informationsaufnahme und -wiedergabegerät und -verfahren

Country Status (3)

Country Link
US (1) US5581524A (de)
EP (1) EP0564148B1 (de)
DE (1) DE69319773T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06349218A (ja) * 1993-04-12 1994-12-22 Sony Corp 光磁気ディスク装置
JPH0855449A (ja) * 1994-08-11 1996-02-27 Sony Corp ディスクドライブ装置
JP3282958B2 (ja) * 1996-01-23 2002-05-20 株式会社リコー 光ディスク装置
JP3532406B2 (ja) * 1998-02-16 2004-05-31 富士通株式会社 情報記憶装置
JP2000048374A (ja) * 1998-07-30 2000-02-18 Matsushita Electric Ind Co Ltd ディスク記録再生装置
JP2000235775A (ja) * 1999-02-12 2000-08-29 Fujitsu Ltd 記憶装置
US6865743B2 (en) * 1999-02-24 2005-03-08 Matsushita Electric Industrial Co., Ltd. Optical head and method of manufacturing the same
JP2002008281A (ja) * 2000-06-19 2002-01-11 Sanyo Electric Co Ltd 光磁気ディスク装置及び該装置の磁気ヘッド位置調整方法
CN1277266C (zh) * 2002-01-10 2006-09-27 松下电器产业株式会社 光盘记录再现装置
JP2003223420A (ja) * 2002-01-31 2003-08-08 Fujitsu Ltd アクセス制御方法、記憶装置及び情報処理装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868802A (en) * 1986-07-28 1989-09-19 Kabushiki Kaisha Toshiba Magnetooptic recording and erasing head which performs biasing, tracking and focusing
US4789972A (en) * 1986-12-22 1988-12-06 International Business Machines Corporation Selectively controlling the erasure in a magneto-optic recording medium
JP2547219B2 (ja) * 1987-09-16 1996-10-23 富士通株式会社 ベクトルデータのアクセス制御装置及び方法
JPS6489054A (en) * 1987-09-30 1989-04-03 Nippon Denki Home Electronics Magneto-optical device
JPH01155504A (ja) * 1987-12-11 1989-06-19 Hitachi Ltd 光磁気デイスク装置の外部磁場制御装置
JPH0221444A (ja) * 1988-07-08 1990-01-24 Mitsubishi Electric Corp 光学的情報記録再生装置
JPH0725858Y2 (ja) * 1988-08-15 1995-06-07 パイオニア株式会社 光学式ピックアップの光学部品駆動装置
JPH02193346A (ja) * 1989-01-21 1990-07-31 Mitsubishi Electric Corp 光磁気記録媒体駆動装置
JP2883101B2 (ja) * 1989-05-24 1999-04-19 キヤノン株式会社 情報記録装置
JPH0340250A (ja) * 1989-07-06 1991-02-21 Matsushita Electric Ind Co Ltd 光磁気ディスクおよび光磁気ディスク装置
US5159584A (en) * 1989-08-15 1992-10-27 Olympus Optical Company Limited Bias-Magnetic field generating system of photo-magnetic recording device
NL9001546A (nl) * 1990-07-06 1992-02-03 Philips Nv Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.
JPH0485741A (ja) * 1990-07-27 1992-03-18 Matsushita Electric Ind Co Ltd 光磁気ディスク装置
EP0503095B1 (de) * 1990-10-03 1996-06-12 Fujitsu Limited Suchsteuersystem für magneto-optisches scheibenantriebsgerät

Also Published As

Publication number Publication date
EP0564148B1 (de) 1998-07-22
EP0564148A1 (de) 1993-10-06
US5581524A (en) 1996-12-03
DE69319773D1 (de) 1998-08-27

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