DE69109382T2 - Optisch magnetische speicher/wiedergabe Vorrichtung. - Google Patents

Optisch magnetische speicher/wiedergabe Vorrichtung.

Info

Publication number
DE69109382T2
DE69109382T2 DE69109382T DE69109382T DE69109382T2 DE 69109382 T2 DE69109382 T2 DE 69109382T2 DE 69109382 T DE69109382 T DE 69109382T DE 69109382 T DE69109382 T DE 69109382T DE 69109382 T2 DE69109382 T2 DE 69109382T2
Authority
DE
Germany
Prior art keywords
playback device
magnetic storage
optical magnetic
optical
playback
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
DE69109382T
Other languages
English (en)
Other versions
DE69109382D1 (de
Inventor
Tetsu Watanabe
Tamotsu Yamagami
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69109382D1 publication Critical patent/DE69109382D1/de
Publication of DE69109382T2 publication Critical patent/DE69109382T2/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
    • 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
    • G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
    • 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
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
    • 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
DE69109382T 1990-01-31 1991-01-30 Optisch magnetische speicher/wiedergabe Vorrichtung. Expired - Fee Related DE69109382T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021211A JP2861188B2 (ja) 1990-01-31 1990-01-31 光磁気記録再生装置
PCT/JP1991/000112 WO1991011806A1 (en) 1990-01-31 1991-01-30 Magneto-optical recording/reproducing apparatus

Publications (2)

Publication Number Publication Date
DE69109382D1 DE69109382D1 (de) 1995-06-08
DE69109382T2 true DE69109382T2 (de) 1995-11-30

Family

ID=12048662

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69109382T Expired - Fee Related DE69109382T2 (de) 1990-01-31 1991-01-30 Optisch magnetische speicher/wiedergabe Vorrichtung.

Country Status (7)

Country Link
US (1) US5784343A (de)
EP (1) EP0465676B1 (de)
JP (1) JP2861188B2 (de)
KR (1) KR100241984B1 (de)
AU (1) AU639533B2 (de)
DE (1) DE69109382T2 (de)
WO (1) WO1991011806A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308531A1 (de) * 1993-03-17 1994-09-22 Thomson Brandt Gmbh Kompatibles Aufzeichnungs- und/oder Wiedergabegerät
JPH06309690A (ja) * 1993-04-26 1994-11-04 Sony Corp 光ピックアップ
US5757758A (en) * 1995-12-19 1998-05-26 Konica Corporation Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus
JP3567444B2 (ja) * 1996-03-21 2004-09-22 ソニー株式会社 記録媒体再生装置および記録媒体再生方法
JP2891191B2 (ja) * 1996-06-28 1999-05-17 日本電気株式会社 光磁気ディスク装置
US5886959A (en) * 1997-04-18 1999-03-23 Read-Rite Corporation Thin-film electro-magnetic coil design for use in a flying magneto-optical head
US6922376B1 (en) * 1997-10-17 2005-07-26 Sony Corportion Sil magneto-optic transducer having thin film magnetic coil and holded magnetic core
US6061169A (en) 1998-03-26 2000-05-09 Digital Optics Corporation Integrated micro-optical systems
US6426829B1 (en) 1998-03-26 2002-07-30 Digital Optics Corp. Integrated micro-optical systems
US6130779A (en) * 1998-07-06 2000-10-10 Read-Rite Corporation Near field magneto-optical head made using wafer processing techniques
TW509908B (en) * 2001-01-12 2002-11-11 Ind Tech Res Inst Pickup structure and method for accessing signals of the same
US8059345B2 (en) 2002-07-29 2011-11-15 Digitaloptics Corporation East Integrated micro-optical systems

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923014B2 (ja) * 1979-03-07 1984-05-30 日本放送協会 光磁気記録再生方法
US4447899A (en) * 1980-06-18 1984-05-08 Eastman Kodak Company Optical disc method, media and apparatus for writing and/or reading information
JPS59148159A (ja) * 1983-02-15 1984-08-24 Canon Inc 光ピツクアツプ装置
JPS59203258A (ja) * 1983-04-30 1984-11-17 Matsushita Electric Ind Co Ltd 光学式記録再生装置
JPS605404A (ja) * 1983-06-24 1985-01-12 Hitachi Ltd 光磁気記録再生方式
EP0180459B1 (de) * 1984-10-30 1991-12-18 Brother Kogyo Kabushiki Kaisha Magnetooptisches Speichermedium und Gerät zum Schreiben auf und Lesen von dem Medium
JPS61242301A (ja) * 1985-04-18 1986-10-28 Fujitsu Ltd 光磁気走査方式
JP2574747B2 (ja) * 1985-11-20 1997-01-22 株式会社日立製作所 光磁気記録装置
JPS6313421U (de) * 1986-07-12 1988-01-28
US4807204A (en) * 1986-07-07 1989-02-21 Brother Kogyo Kabushiki Kaisha Magneto-optical recording medium having pairs of mutually corresponding recording segments, and apparatus for recording information on the medium
JPS6314347A (ja) * 1986-07-07 1988-01-21 Brother Ind Ltd 光磁気記録装置
US5051970A (en) * 1987-05-08 1991-09-24 Nippon Telegraph And Telephone Corporation Magneto-optic recording system with overwrite capability
JPS643841A (en) * 1987-06-24 1989-01-09 Nec Corp Magneto-optical reproducing device
JPS6413203A (en) * 1987-07-06 1989-01-18 Nec Corp Thin film electromagnet impressing magnetic field for optical magnetic disk
US5105408A (en) * 1988-05-12 1992-04-14 Digital Equipment Corporation Optical head with flying lens
US5022018A (en) * 1989-02-16 1991-06-04 Minnesota Mining And Manufacturing Company System for applying a perpendicular magnetic field to the illuminated side of a magneto-optic medium
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
JPH03122855A (ja) * 1989-10-06 1991-05-24 Fuji Xerox Co Ltd 光磁気記録型記録装置の浮動ヘッド
US5124961A (en) * 1989-12-28 1992-06-23 Fuji Xerox Co., Ltd. Floating head for use with a recording apparatus of magneto-optical memory device

Also Published As

Publication number Publication date
AU7186391A (en) 1991-08-21
AU639533B2 (en) 1993-07-29
KR920701962A (ko) 1992-08-12
WO1991011806A1 (en) 1991-08-08
JP2861188B2 (ja) 1999-02-24
EP0465676A4 (en) 1992-06-24
EP0465676B1 (de) 1995-05-03
EP0465676A1 (de) 1992-01-15
KR100241984B1 (ko) 2000-02-01
US5784343A (en) 1998-07-21
JPH03225651A (ja) 1991-10-04
DE69109382D1 (de) 1995-06-08

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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