DE69025785D1 - Gerät zum Aufzeichnen und Wiedergeben optischer Platten - Google Patents

Gerät zum Aufzeichnen und Wiedergeben optischer Platten

Info

Publication number
DE69025785D1
DE69025785D1 DE69025785T DE69025785T DE69025785D1 DE 69025785 D1 DE69025785 D1 DE 69025785D1 DE 69025785 T DE69025785 T DE 69025785T DE 69025785 T DE69025785 T DE 69025785T DE 69025785 D1 DE69025785 D1 DE 69025785D1
Authority
DE
Germany
Prior art keywords
recording
optical disks
reproducing optical
reproducing
disks
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
DE69025785T
Other languages
English (en)
Other versions
DE69025785T2 (de
Inventor
Tadao Yoshida
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
Publication of DE69025785D1 publication Critical patent/DE69025785D1/de
Application granted granted Critical
Publication of DE69025785T2 publication Critical patent/DE69025785T2/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • 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
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
DE69025785T 1989-02-14 1990-01-30 Gerät zum Aufzeichnen und Wiedergeben optischer Platten Expired - Fee Related DE69025785T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1034486A JP2850348B2 (ja) 1989-02-14 1989-02-14 光デイスクの記録再生方法

Publications (2)

Publication Number Publication Date
DE69025785D1 true DE69025785D1 (de) 1996-04-18
DE69025785T2 DE69025785T2 (de) 1996-07-25

Family

ID=12415575

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69025785T Expired - Fee Related DE69025785T2 (de) 1989-02-14 1990-01-30 Gerät zum Aufzeichnen und Wiedergeben optischer Platten

Country Status (5)

Country Link
US (1) US5050145A (de)
EP (1) EP0383451B1 (de)
JP (1) JP2850348B2 (de)
KR (1) KR100225443B1 (de)
DE (1) DE69025785T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016551A1 (de) * 1990-05-23 1991-11-28 Thomson Brandt Gmbh Verfahren zum anhalten eines rotierenden plattenfoermigen aufzeichnungstraegers
JPH04252462A (ja) * 1991-01-28 1992-09-08 Nec Corp 光学情報の記録・消去・再生方法および記録・消去・再生装置
JPH05101527A (ja) * 1991-10-07 1993-04-23 Chuo Denki Kk デイスク再生装置
KR0165392B1 (ko) * 1995-05-12 1999-04-15 윤종용 씨디-롬 드라이브에서의 스핀들 모터 게인 제어방법
JP3961142B2 (ja) * 1999-02-05 2007-08-22 富士通株式会社 ディスクドライブの制御方法及び制御装置
JP2001195829A (ja) * 2000-01-07 2001-07-19 Hitachi Ltd データ記録再生装置
TW519619B (en) * 2001-05-23 2003-02-01 Lite On It Corp Method for determining rotating speed of compact disc player by system detection

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838254B1 (de) * 1969-11-21 1973-11-16
NL7201920A (de) * 1972-02-15 1973-08-17 Philips Nv
US4710825A (en) * 1983-05-26 1987-12-01 Nippon Kogaku K.K. Disc recording system with speed control
JPS6196583A (ja) * 1984-10-17 1986-05-15 Sony Corp ディスク記録再生装置
EP0196590B1 (de) * 1985-03-27 1992-05-20 Sony Corporation Signalaufnahme- und -wiedergabegerät für eine optomagnetische Platte
JPH0760564B2 (ja) * 1985-12-20 1995-06-28 ソニー株式会社 デイスク再生装置
JPS62189654A (ja) * 1986-02-17 1987-08-19 Nec Corp 光磁気記録装置
JPS62219367A (ja) * 1986-03-20 1987-09-26 Toshiba Corp デイスク記録再生装置のデイスクモ−タ制御回路
JP2617176B2 (ja) * 1986-04-10 1997-06-04 シャープ株式会社 光ヘツド
JPS63112869A (ja) * 1986-10-28 1988-05-17 Pioneer Electronic Corp 光学的情報再生装置
JPH02195545A (ja) * 1989-01-24 1990-08-02 Olympus Optical Co Ltd 光磁気ディスクの情報再生方法

Also Published As

Publication number Publication date
JPH02214050A (ja) 1990-08-27
JP2850348B2 (ja) 1999-01-27
KR900013481A (ko) 1990-09-05
EP0383451B1 (de) 1996-03-13
KR100225443B1 (ko) 1999-10-15
US5050145A (en) 1991-09-17
EP0383451A1 (de) 1990-08-22
DE69025785T2 (de) 1996-07-25

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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