DE69029029T2 - Gerät zur magnetooptischen Aufzeichnung/Wiedergabe - Google Patents

Gerät zur magnetooptischen Aufzeichnung/Wiedergabe

Info

Publication number
DE69029029T2
DE69029029T2 DE69029029T DE69029029T DE69029029T2 DE 69029029 T2 DE69029029 T2 DE 69029029T2 DE 69029029 T DE69029029 T DE 69029029T DE 69029029 T DE69029029 T DE 69029029T DE 69029029 T2 DE69029029 T2 DE 69029029T2
Authority
DE
Germany
Prior art keywords
magneto
optical recording
playback device
playback
recording
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
DE69029029T
Other languages
English (en)
Other versions
DE69029029D1 (de
Inventor
Junichiro Nakayama
Hiroyuki Katayama
Kenji Ohta
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Publication of DE69029029D1 publication Critical patent/DE69029029D1/de
Application granted granted Critical
Publication of DE69029029T2 publication Critical patent/DE69029029T2/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
    • G11B11/10576—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
    • G11B11/1055—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
    • G11B11/10567—Mechanically moving the transducers
DE69029029T 1989-12-28 1990-12-28 Gerät zur magnetooptischen Aufzeichnung/Wiedergabe Expired - Lifetime DE69029029T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1342982A JP2601553B2 (ja) 1989-12-28 1989-12-28 光磁気記録再生装置

Publications (2)

Publication Number Publication Date
DE69029029D1 DE69029029D1 (de) 1996-12-05
DE69029029T2 true DE69029029T2 (de) 1997-04-03

Family

ID=18358019

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69029029T Expired - Lifetime DE69029029T2 (de) 1989-12-28 1990-12-28 Gerät zur magnetooptischen Aufzeichnung/Wiedergabe

Country Status (4)

Country Link
US (1) US5068841A (de)
EP (1) EP0435697B1 (de)
JP (1) JP2601553B2 (de)
DE (1) DE69029029T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0767457B1 (de) * 1990-01-19 2001-08-29 Sharp Kabushiki Kaisha Vorrichtung zur magnetooptischen Aufzeichnung
JP3038754B2 (ja) * 1990-01-20 2000-05-08 ソニー株式会社 光磁気ディスクの記録装置
JP2600004B2 (ja) * 1990-02-06 1997-04-16 シャープ株式会社 光磁気記録媒体及びその表面処理方法
US5336531A (en) * 1990-02-06 1994-08-09 Sharp Kabushiki Kaisha Magneto-optical disk and manufacturing methods thereof
JPH03276475A (ja) * 1990-03-27 1991-12-06 Matsushita Electric Ind Co Ltd 磁気ディスク装置
JP2936656B2 (ja) * 1990-06-25 1999-08-23 ソニー株式会社 正圧スライダのローディング装置
DE69228279T2 (de) * 1991-08-30 1999-07-08 Canon Kk Gerät für magnetooptische Platte mit schwebendem Magnetkopf
US5625607A (en) * 1992-02-13 1997-04-29 Canon Kabushiki Kaisha Magneto-optical disk apparatus including two magnetic field applying devices, one of which has a substantial ring-shaped core member with a gap in a portion thereof
JP2813261B2 (ja) * 1992-02-14 1998-10-22 シャープ株式会社 光磁気ディスク用磁気ヘッド装置及び光磁気記録再生装置
JPH0778435A (ja) * 1993-09-09 1995-03-20 Fujitsu Ltd 磁気ディスク装置
US5585980A (en) * 1994-06-09 1996-12-17 International Business Machines Corporation Low friction device for an actuator arm of a disk drive
KR0135111B1 (ko) * 1994-09-01 1998-04-22 김광호 헤드 서스팬션의 기록매체 비접촉에 의한 기동-정지 제어방법 및 장치
US6078468A (en) * 1997-05-01 2000-06-20 Fiske; Orlo James Data storage and/or retrieval methods and apparatuses and components thereof
JP2000163899A (ja) * 1998-11-30 2000-06-16 Fujitsu Ltd 記録ディスク駆動装置
US6501625B1 (en) * 1999-06-29 2002-12-31 Hutchinson Technology Incorporated Disk drive suspension with multi-layered piezoelectric actuator controlled gram load
US6301073B1 (en) 1999-11-18 2001-10-09 International Business Machines Corporation Device for preventing mechanical shock-induced damage between actuator and disk in computer hard disk drive
EP1460616B1 (de) * 2003-03-20 2013-10-16 Panasonic Corporation Kopfträgeranordnung und Plattenlaufwerk dieses benützend
US7821741B2 (en) * 2006-12-27 2010-10-26 Hitachi Global Storage Technologies Netherlands, B.V. Disk drive head stack assembly interacting with movement guide for preventing head from contacting the disk during read/write operations

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146911A (en) * 1977-12-23 1979-03-27 Burroughs Corporation Head spacing control
FR2420809A1 (fr) * 1978-03-24 1979-10-19 Cii Honeywell Bull Dispositif de lecture-ecriture d'un support d'information a prise de vol par rampe a faible charge
US4393425A (en) * 1981-03-30 1983-07-12 Disctron, Inc. Linear head actuator
JPS59157878A (ja) * 1983-02-28 1984-09-07 Nippon Seiko Kk フロツピ−デイスク駆動装置の磁気ヘツドロ−デイング機構
US4503439A (en) * 1983-03-08 1985-03-05 Springer Gilbert D Thin-film, compliant, non-pressure-point-telegraphing, electromagnetic read/write head structure
KR930009999B1 (ko) * 1986-03-07 1993-10-13 가부시기가이샤 히다찌세이사꾸쇼 자기 헤드 슬라이더 및 슬라이더를 사용한 자기 디스크의 제조방법
US4777544A (en) * 1986-08-15 1988-10-11 International Business Machine Corporation Method and apparatus for in-situ measurement of head/recording medium clearance
JPS6352180U (de) * 1986-09-20 1988-04-08
JPS63108576A (ja) * 1986-10-27 1988-05-13 Nec Corp 浮動ヘツドのロ−デイング機構
JPS63175275A (ja) * 1987-01-14 1988-07-19 Victor Co Of Japan Ltd 磁気記録媒体面に対する磁気ヘツドの摺接姿態の調整装置
JPS63197056A (ja) * 1987-02-12 1988-08-15 Tdk Corp 磁気デイスク装置
US4814907A (en) * 1987-11-24 1989-03-21 Goor Associates, Inc. Method and apparatus for maintaining constant flying height via magnetic interaction
JPH01251359A (ja) * 1987-12-15 1989-10-06 Seiko Epson Corp 光磁気記緑再生装置のデータ書換え方法
US4931887A (en) * 1988-02-01 1990-06-05 International Business Machines Corporation Capacitive measurement and control of the fly height of a recording slider
JPH01199302A (ja) * 1988-02-03 1989-08-10 Hitachi Ltd 光磁気記憶装置
JPH0296455A (ja) * 1988-09-30 1990-04-09 Konica Corp ファクシミリ装置
JPH03233322A (ja) * 1990-01-16 1991-10-17 Hitachi Medical Corp 核医学データ処理装置

Also Published As

Publication number Publication date
EP0435697A1 (de) 1991-07-03
JP2601553B2 (ja) 1997-04-16
EP0435697B1 (de) 1996-10-30
JPH03203055A (ja) 1991-09-04
DE69029029D1 (de) 1996-12-05
US5068841A (en) 1991-11-26

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Legal Events

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8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN

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