DE3684440D1 - Verfahren und geraet zur magneto-optischen aufnahme und wiedergabe. - Google Patents

Verfahren und geraet zur magneto-optischen aufnahme und wiedergabe.

Info

Publication number
DE3684440D1
DE3684440D1 DE8686118130T DE3684440T DE3684440D1 DE 3684440 D1 DE3684440 D1 DE 3684440D1 DE 8686118130 T DE8686118130 T DE 8686118130T DE 3684440 T DE3684440 T DE 3684440T DE 3684440 D1 DE3684440 D1 DE 3684440D1
Authority
DE
Germany
Prior art keywords
magneto
playback
optical recording
recording
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 - Lifetime
Application number
DE8686118130T
Other languages
English (en)
Inventor
Keiichi Komatsu
Shinji Ozaki
Hikaru Masui
Ken Kubo
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.)
Hitachi Ltd
Hitachi Advanced Digital Inc
Original Assignee
Hitachi Ltd
Hitachi Video and Information System 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
Application filed by Hitachi Ltd, Hitachi Video and Information System Inc filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3684440D1 publication Critical patent/DE3684440D1/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/62—Maintaining desired spacing between record carrier and head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • 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
    • G11B11/10502—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 characterised by the transducing operation to be executed
    • G11B11/10517—Overwriting or erasing
    • 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
    • G11B11/10576—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
    • G11B11/10595—Control of operating function
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
DE8686118130T 1986-01-10 1986-12-30 Verfahren und geraet zur magneto-optischen aufnahme und wiedergabe. Expired - Lifetime DE3684440D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61002070A JPS62162261A (ja) 1986-01-10 1986-01-10 光磁気記録再生装置

Publications (1)

Publication Number Publication Date
DE3684440D1 true DE3684440D1 (de) 1992-04-23

Family

ID=11519083

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686118130T Expired - Lifetime DE3684440D1 (de) 1986-01-10 1986-12-30 Verfahren und geraet zur magneto-optischen aufnahme und wiedergabe.

Country Status (5)

Country Link
US (1) US4901297A (de)
EP (1) EP0229395B1 (de)
JP (1) JPS62162261A (de)
KR (1) KR910001276B1 (de)
DE (1) DE3684440D1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2565265B2 (ja) * 1987-11-28 1996-12-18 ソニー株式会社 光情報処理装置
JP2679079B2 (ja) * 1988-02-18 1997-11-19 ソニー株式会社 光磁気記録方法
KR920004442B1 (ko) * 1989-12-08 1992-06-05 삼성전자 주식회사 광학 정보 기록 및 재생시스템
KR930012147B1 (ko) * 1991-10-23 1993-12-24 삼성전자 주식회사 광테이프의 기록 및/또는 재생장치
US5321684A (en) * 1992-09-15 1994-06-14 Sri International Bidirectional sinusoidal scanning system
CA2137062A1 (en) * 1993-12-08 1995-06-09 Takumi Shimamori Magneto-optical recording and reading-out method
JPH08506918A (ja) * 1993-12-15 1996-07-23 フィリップス エレクトロニクス ネムローゼ フェン ノートシャップ 光走査装置
JPH08506919A (ja) * 1993-12-15 1996-07-23 フィリップス エレクトロニクス ネムローゼ フェン ノートシャップ 光走査装置
BE1007872A3 (nl) * 1993-12-15 1995-11-07 Philips Electronics Nv Optische aftastinrichting, alsmede een opteken- en/of uitleesinrichting voorzien van een dergelijke aftastinrichting.
CN1067792C (zh) * 1994-12-05 2001-06-27 皇家菲利浦电子有限公司 对信息表面进行光学扫描的光学组件以及含有该光学组件的光学扫描装置
JP4150084B2 (ja) * 1995-11-24 2008-09-17 ソニー株式会社 ディスク記録媒体
EP0806038A1 (de) * 1995-11-27 1997-11-12 Koninklijke Philips Electronics N.V. Optisches gerät für die abtastung eines bandförmigen aufzeichnungsträgers
EP0855081A2 (de) * 1996-07-03 1998-07-29 Koninklijke Philips Electronics N.V. Vorrichtung zum abtasten von informationsspuren auf einem aufzeichnungsträger
TW319854B (en) * 1996-07-04 1997-11-11 Philips Electronics Nv Optical apparatus for scanning a tape-shaped record carrier
US5995269A (en) * 1996-10-09 1999-11-30 U.S. Philips Corporation Optical unit for optically scanning an information surface, and optical scanning arrangement including the optical unit
EP0923078A1 (de) * 1997-12-12 1999-06-16 Tandberg Data Asa Servomuster für Bandantrieb mit Linearaufzeichnungs-Servospurfolge und dieses verwendendes Positionsabfühlsystem und -verfahren
JP2000242321A (ja) * 1999-02-19 2000-09-08 Fujitsu Ltd フィードバック制御装置、ディジタルフィルタ装置、および記憶装置
FR2797514B3 (fr) * 1999-08-10 2001-10-12 Thomson Csf Dispositif de lecture magneto-optique pour bandes magnetiques multipistes
US7225984B2 (en) * 2003-02-20 2007-06-05 Harris Rodney C Systems and methods for providing multiple object planes in an optical image scanning environment
US8144878B2 (en) 2006-03-06 2012-03-27 Mediatek Inc. FM receiver and pilot detector thereof, and method for determining a type of a processed signal
JP5518612B2 (ja) * 2010-07-20 2014-06-11 株式会社ディスコ 光学装置およびこれを備えるレーザー加工装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651281A (en) * 1969-06-06 1972-03-21 Carl H Becker Laser recording system using photomagnetically magnetizable storage medium
DE2043766A1 (de) * 1970-09-03 1972-03-09 Siemens Ag Verfahren und Anordnung zum Speichern von Informationen in einem magnetooptischen Speicher
US3902048A (en) * 1974-07-11 1975-08-26 Ibm Omnidirectional optomechanical scanning apparatus
JPS5596917A (en) * 1979-01-17 1980-07-23 Canon Inc Two-dimensional scanner
US4669070A (en) * 1979-09-18 1987-05-26 Rca Corporation Signal format for optical tape record/playback system
US4403250A (en) * 1980-03-18 1983-09-06 Micro Consultants Limited Processing of T.V. pictures for subsequent stop mode reproduction
US4430675A (en) * 1980-05-02 1984-02-07 Sanyo Electric Co., Ltd. Still picture recording and reproducing system
JPS57117106A (en) * 1981-01-09 1982-07-21 Olympus Optical Co Ltd Optical magnetic recording and reproducing method
JPS57158004A (en) * 1981-03-24 1982-09-29 Toshiba Corp Magnetic transfer recorder
JPS58115602A (ja) * 1981-12-29 1983-07-09 Shiro Okamura 光磁気記録装置
JPS58146006A (ja) * 1982-02-24 1983-08-31 Shiro Okamura 光磁気記録装置
JPS60214437A (ja) * 1984-04-10 1985-10-26 Seiko Epson Corp 光ビデオテ−プレコ−ダ
JPH0650911B2 (ja) * 1984-10-26 1994-06-29 ソニー株式会社 再生映像信号処理装置

Also Published As

Publication number Publication date
EP0229395A3 (en) 1988-10-12
KR910001276B1 (ko) 1991-02-26
EP0229395B1 (de) 1992-03-18
JPS62162261A (ja) 1987-07-18
US4901297A (en) 1990-02-13
KR870007485A (ko) 1987-08-19
EP0229395A2 (de) 1987-07-22

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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