ES2099128T3 - Dispositivo para inscribir y/o leer un portador de informacion magneto-optico. - Google Patents

Dispositivo para inscribir y/o leer un portador de informacion magneto-optico.

Info

Publication number
ES2099128T3
ES2099128T3 ES91201687T ES91201687T ES2099128T3 ES 2099128 T3 ES2099128 T3 ES 2099128T3 ES 91201687 T ES91201687 T ES 91201687T ES 91201687 T ES91201687 T ES 91201687T ES 2099128 T3 ES2099128 T3 ES 2099128T3
Authority
ES
Spain
Prior art keywords
rotation
axis
unit
coil
magnetic unit
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
ES91201687T
Other languages
English (en)
Inventor
Johannes Martinus Mari Hensing
Cornelius Anthonius Hezemans
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 ES2099128T3 publication Critical patent/ES2099128T3/es
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
    • 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
    • G11B11/10532—Heads
    • 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

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

ESTA INVENCION SE REFIERE A UN DISPOSITIVO PARA ESCRIBIR Y/O LEER EN UN DISCO MAGNETO-OPTICO (7). EL DISPOSITIVO CONSTA DE UNA ARMADURA (1) QUE LLEVA UN GIRADISCO (5) QUE ROTA ALREDEDOR DE UN EJE DE ROTACION (11), Y DE UNA UNIDAD OPTICA (19) QUE CONSTA DE OBJETIVO (22) Y UN ACTUADOR PARA MOVER EL OBJETIVO EN AL MENOS UNA DIRECCION PARALELA A DICHO EJE DE ROTACION, Y DE UNA UNIDAD MAGNETICA (59), COLOCADA FRENTE A Y SEPARADA DE , LA UNIDAD OPTICA, VISTA DESDE EL EJE DE ROTACION. POR MEDIO DE DESLIZADORES (101, 107), LA UNIDAD OPTICA Y LA UNIDAD MAGNETICA SON DESPLAZADOS EN UN PLANO TRANSVERSAL A DICHO EJE DE ROTACION. LA UNIDAD MAGNETICA COMPRENDE UNA BOBINA (131) DISPUESTA SOBRE UN SOPORTE Y DE OTRO ACTUADOR PARA MOVER LA BOBINA, EN AL MENOS UN PLANO ORIENTADO TRANSVERSALMENTE A DICHO EJE DE ROTACION. ADEMAS, EL DISPOSITIVO COMPRENDE UN SISTEMA DE MEDIDA Y DE CONTROL PARA DETERMINAR LA POSICION RADIAL DE LA UNIDAD OPTICA Y DE LA UNIDAD MAGNETICA, VISTOS DESDE DICHOS EJES DE ROTACION, Y PARACONTROLAR, AL MENOS, LA POSICION RADIAL DE LA BOBINA CON RELACION AL OBJETIVO.
ES91201687T 1990-07-06 1991-07-02 Dispositivo para inscribir y/o leer un portador de informacion magneto-optico. Expired - Lifetime ES2099128T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9001546A NL9001546A (nl) 1990-07-06 1990-07-06 Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.

Publications (1)

Publication Number Publication Date
ES2099128T3 true ES2099128T3 (es) 1997-05-16

Family

ID=19857378

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91201687T Expired - Lifetime ES2099128T3 (es) 1990-07-06 1991-07-02 Dispositivo para inscribir y/o leer un portador de informacion magneto-optico.

Country Status (8)

Country Link
US (1) US5191562A (es)
EP (1) EP0464947B1 (es)
JP (1) JPH04229436A (es)
KR (1) KR920003275A (es)
DE (1) DE69124150T2 (es)
ES (1) ES2099128T3 (es)
MY (1) MY107575A (es)
NL (1) NL9001546A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3393655B2 (ja) * 1992-02-27 2003-04-07 パイオニア株式会社 光ディスクプレーヤ
EP0564148B1 (en) * 1992-03-31 1998-07-22 Canon Kabushiki Kaisha Magnetooptical information recording/reproducing apparatus and method using magnetic head
US5408455A (en) * 1992-04-08 1995-04-18 Asahi Kogaku Kogyo Kabushiki Kaisha Control device for head unit having optical head and multiple magnetic heads
US5495455A (en) * 1992-04-28 1996-02-27 Sony Corporation Magneto-optical disk recording and reading apparatus and method wherein the recording head is controlled in the radial direction of the disk to a desired position
US5297122A (en) * 1992-09-14 1994-03-22 Hewlett-Packard Company Dust protection assembly for magneto-optic drive apparatus
US5416753A (en) * 1992-11-16 1995-05-16 Asahi Kogaku Kogyo Kabushiki Kaisha Magneto-optical disk drive system with head position adjustability
US5666333A (en) * 1995-04-07 1997-09-09 Discovision Associates Biasing level controller for magneto-optical recording device
WO1999018576A2 (en) * 1997-10-06 1999-04-15 Koninklijke Philips Electronics N.V. An apparatus for reading and/or writing information from/on a recording medium
JP3579616B2 (ja) * 1999-06-21 2004-10-20 ペンタックス株式会社 磁気ヘッド昇降機構
US7933191B2 (en) * 2006-10-27 2011-04-26 Van Brocklin Andrew L Optical disc drive having two optomechanical mechanisms

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2522405C2 (de) * 1975-05-21 1982-04-15 Philips Patentverwaltung Gmbh, 2000 Hamburg Optisches Mehrkanal-Plattenspeichersystem zum Speichern von digitaler Information
US4327434A (en) * 1980-01-28 1982-04-27 Rca Corporation Video disc stylus position sensor system
JPH0619863B2 (ja) * 1984-06-13 1994-03-16 株式会社日立製作所 光磁気情報記憶方法及び装置
US4843600A (en) * 1985-09-13 1989-06-27 Canon Kabushiki Kaisha Recording head for magneto-optical information recording apparatus
JP2574747B2 (ja) * 1985-11-20 1997-01-22 株式会社日立製作所 光磁気記録装置
US4870635A (en) * 1986-09-19 1989-09-26 International Business Machines Corporation Precision measurement and positioning system for disk storage system
US4789972A (en) * 1986-12-22 1988-12-06 International Business Machines Corporation Selectively controlling the erasure in a magneto-optic recording medium
JPS63177304A (ja) * 1987-01-16 1988-07-21 Sanyo Electric Co Ltd 光磁気情報記録装置の外部磁界印加装置
JPS6479942A (en) * 1987-09-21 1989-03-24 Toshiba Corp Information processor
DE68921087D1 (de) * 1988-04-06 1995-03-23 Mitsubishi Electric Corp Gerät zur Aufnahme auf eine und Wiedergabe von einer optischen Scheibe.
JPH01287849A (ja) * 1988-05-13 1989-11-20 Tokyo Electric Co Ltd 光磁気デイスク装置
JP2624793B2 (ja) * 1988-08-12 1997-06-25 株式会社東芝 Ｐｗｍ昇圧コンバータの制御装置
JPH02220273A (ja) * 1989-02-21 1990-09-03 Pioneer Electron Corp ディスク演奏装置におけるスライダー制御装置
NL8900751A (nl) * 1989-03-28 1990-10-16 Philips Nv Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.
NL8900752A (nl) * 1989-03-28 1990-10-16 Philips Nv Inrichting voor het inschrijven en/of uitlezen van een magneto-optische informatiedrager.
JPH07118106B2 (ja) * 1990-03-08 1995-12-18 パイオニア株式会社 光磁気記録再生装置

Also Published As

Publication number Publication date
US5191562A (en) 1993-03-02
JPH04229436A (ja) 1992-08-18
DE69124150D1 (de) 1997-02-27
DE69124150T2 (de) 1997-07-10
KR920003275A (ko) 1992-02-29
EP0464947B1 (en) 1997-01-15
MY107575A (en) 1996-04-30
NL9001546A (nl) 1992-02-03
EP0464947A1 (en) 1992-01-08

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