DE69318517T2 - Vorrichtung zum magnetooptischen Lesen/Schreiben - Google Patents

Vorrichtung zum magnetooptischen Lesen/Schreiben

Info

Publication number
DE69318517T2
DE69318517T2 DE69318517T DE69318517T DE69318517T2 DE 69318517 T2 DE69318517 T2 DE 69318517T2 DE 69318517 T DE69318517 T DE 69318517T DE 69318517 T DE69318517 T DE 69318517T DE 69318517 T2 DE69318517 T2 DE 69318517T2
Authority
DE
Germany
Prior art keywords
magneto
writing device
optical reading
reading
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
DE69318517T
Other languages
English (en)
Other versions
DE69318517D1 (de
Inventor
Johannes Leopoldus Bakx
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of DE69318517D1 publication Critical patent/DE69318517D1/de
Publication of DE69318517T2 publication Critical patent/DE69318517T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording 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
    • G11B11/10Recording 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
    • G11B11/105Recording 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
    • G11B11/10595Control of operating function
    • G11B11/10597Adaptations for transducing various formats on the same or different carriers
DE69318517T 1992-11-20 1993-11-16 Vorrichtung zum magnetooptischen Lesen/Schreiben Expired - Fee Related DE69318517T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92203586 1992-11-20

Publications (2)

Publication Number Publication Date
DE69318517D1 DE69318517D1 (de) 1998-06-18
DE69318517T2 true DE69318517T2 (de) 1998-11-26

Family

ID=8211061

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69318517T Expired - Fee Related DE69318517T2 (de) 1992-11-20 1993-11-16 Vorrichtung zum magnetooptischen Lesen/Schreiben

Country Status (6)

Country Link
US (1) US5365508A (de)
EP (1) EP0599387B1 (de)
JP (1) JPH0773533A (de)
KR (1) KR100286068B1 (de)
DE (1) DE69318517T2 (de)
SG (1) SG44657A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69615474T2 (de) * 1995-01-31 2002-05-08 Sony Corp Detektionsschaltung für ein optisches signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215736A (ja) * 1982-06-07 1983-12-15 Pioneer Electronic Corp 光学式記録情報読取装置におけるサ−ボ装置
JPH07105081B2 (ja) * 1985-01-23 1995-11-13 株式会社日立製作所 光磁気ディスク装置及びその情報処理方法
US4833662A (en) * 1985-05-02 1989-05-23 Olympus Optical Co., Ltd. Reproduction apparatus for a magneto-optical recording medium
JPH071560B2 (ja) * 1985-09-20 1995-01-11 オリンパス光学工業株式会社 光学式記録再生装置
JPH0777048B2 (ja) * 1987-06-26 1995-08-16 三菱電機株式会社 記録媒体駆動装置
JP2655682B2 (ja) * 1988-06-08 1997-09-24 株式会社日立製作所 光磁気情報記録再生装置
JP2886200B2 (ja) * 1989-09-26 1999-04-26 シャープ株式会社 光磁気記録再生装置

Also Published As

Publication number Publication date
JPH0773533A (ja) 1995-03-17
KR940012278A (ko) 1994-06-23
SG44657A1 (en) 1997-12-19
KR100286068B1 (ko) 2001-04-16
DE69318517D1 (de) 1998-06-18
EP0599387A1 (de) 1994-06-01
US5365508A (en) 1994-11-15
EP0599387B1 (de) 1998-05-13

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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: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee