KR920001460A - 광자기 디스크 - Google Patents

광자기 디스크 Download PDF

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Publication number
KR920001460A
KR920001460A KR1019910010861A KR910010861A KR920001460A KR 920001460 A KR920001460 A KR 920001460A KR 1019910010861 A KR1019910010861 A KR 1019910010861A KR 910010861 A KR910010861 A KR 910010861A KR 920001460 A KR920001460 A KR 920001460A
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KR
South Korea
Prior art keywords
signal
counter
output
magneto
disk
Prior art date
Application number
KR1019910010861A
Other languages
English (en)
Other versions
KR100248932B1 (ko
Inventor
다까시 오오모리
히로또시 후지사와
다다오 요시다
Original Assignee
오오가 노리오
소니 가부시씨가이샤
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
Priority claimed from JP17249590A external-priority patent/JP2841752B2/ja
Priority claimed from JP31261890A external-priority patent/JPH04176038A/ja
Application filed by 오오가 노리오, 소니 가부시씨가이샤 filed Critical 오오가 노리오
Publication of KR920001460A publication Critical patent/KR920001460A/ko
Application granted granted Critical
Publication of KR100248932B1 publication Critical patent/KR100248932B1/ko

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    • 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
    • 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
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • 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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/03—Containers for flat record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/032—Positioning by moving the door or the cover
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature

Abstract

내용 없음

Description

광자기 디스크
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 광자기 디스크의 사시도.
제2도는 제1도에 도시된 광자기 디스크의 확대 부분 단면도.
제3도는 본 발명에 따른 광자기 디스크의 다양한 수정을 도시하는 확대 부분 단면도.
제7도는 본 발명에 따른 광자기 디스크가 장착되는 기록 장치를 도시하는 사시도.

Claims (7)

  1. 정보 신호가 기록되고, 서보 섹터 펄스가 회전 방향으로 예정된 구간에서 기록되는 디스크로부터 상기 정보 신호를 재생하기 위한 디스크 드라이브 장치로서, 상기 디스크를 회전 가능하게 구동하는 스핀들 모터, 상기 스핀들 모터의 회전을 검출하여, 검출 출력을 발생시키는 수단, 상기 디스크로부터 상기 섹터 펄스를 재생시키는 수단, 상기 검출 출력 및 상기 섹터 펄스를 스위치하는 수단, 기준 클럭 신호를 카운트하는 카운터, 상기 스위칭 수단의 출력 신호에 의해 상기 카운터의 출력을 샘플링하는 샘플링 수단, 상기 샘플링 수단이 출력내에 포함된 연속적인 샘플링 값의 차를 검출하여, 속도 제어 신호를 발생시키는 발생 수단, 상기 속도 제어 신호를 이용하여 상기 스핀들 모터를 제어하는 모터 제어 수단 및, 상기 스위칭 수단이 상기 회전 속도가 느릴 시에 상기 검출 출력을 선택하고, 상기 회전 속도가 정상 속도와 거의 같을 시에 상기 섹터 펄스를 선택하도록 상기 디스크의 회전 속도에 응답하여 상기 스위칭 수단을 제어하는 제어 수단을 구비하는 디스크 드라이브 장치.
  2. 제1항에 있어서, 상기 발생 수단은 연속적인 샘플링 값의 차를 기준 값과 비교하는 비교 수단을 포함하는 디스크 드라이브 장치.
  3. 제1항에 있어서, 상기 샘플링 수단은 상기 카운터의 출력을 래치하는 래치 수단을 포함하는 디시크 드라이브 장치.
  4. 제1항에 있어서, 상기 카운터는 상기 발생 수단으로 검출 신호를 공급하는 오버 플로우를 검출하는 검출 수단을 포함하며, 상기 속도 제어 신호는 상기 검출 신호에 의해 고정되는 디스크 드라이브 장치.
  5. 제1항에 있어서, 상기 검출 수단은 상기 스핀들 모터의 역기 전력을 검출하는 수단을 포함하는 디스크 드라이브 장치.
  6. 제1항에 있어서, 상기 카운터는 다수 비트 카운터로서 구성되고, 상기 샘플링 수단은 상기 제어 수단에 의해 선택적으로 제어되는 상기 카운터의 선택되는 서로 다른 비트 위치의 출력을 샘플하는 디시크 드라이브 장치.
  7. 제1항에 있어서, 상기 카운터는 상기 기준 클릭 신호를 카운트하는 제1모드 및, 상기 기준 클릭 신호의 분주 신호를 카운트하는 제2모드를 가지며, 상기 제1및 제2모드는 사이 제어 수단의 출력에 의해 스위치되는 디스크 드라이브 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910010861A 1990-06-29 1991-06-28 광자기 디스크 KR100248932B1 (ko)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP172495 1990-06-29
JP17249590A JP2841752B2 (ja) 1990-06-29 1990-06-29 光磁気ディスクの記録装置
JP90-172495 1990-06-29
JP177251 1990-07-06
JP17725190 1990-07-06
JP312618 1990-11-20
JP31261890A JPH04176038A (ja) 1990-07-06 1990-11-20 光磁気ディスク

Publications (2)

Publication Number Publication Date
KR920001460A true KR920001460A (ko) 1992-01-30
KR100248932B1 KR100248932B1 (ko) 2000-03-15

Family

ID=27323628

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910010861A KR100248932B1 (ko) 1990-06-29 1991-06-28 광자기 디스크

Country Status (6)

Country Link
US (1) US5506023A (ko)
EP (2) EP0464674A3 (ko)
KR (1) KR100248932B1 (ko)
AT (1) ATE187839T1 (ko)
DE (1) DE69131855T2 (ko)
HK (1) HK1013500A1 (ko)

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JPH06314446A (ja) * 1992-06-19 1994-11-08 Tdk Corp 光磁気ディスク
JPH09259440A (ja) * 1996-03-25 1997-10-03 Sony Corp 記録媒体、アドレス記録方法および装置、並びに、記録再生方法および装置
US6135958A (en) * 1998-08-06 2000-10-24 Acuson Corporation Ultrasound imaging system with touch-pad pointing device
US6268073B1 (en) 1998-11-09 2001-07-31 Seagate Technology Llc Flash layer overcoat for magnetically-induced super resolution magneto-optical media
US6355342B1 (en) 1998-11-18 2002-03-12 Seagate Technology Llc Flash layer overcoat for high density multilayer magneto-optical media
US6381200B1 (en) 1998-11-18 2002-04-30 Seagate Technology Llc Flash layer overcoat for first surface magneto-optical media
US6324131B1 (en) 1999-01-04 2001-11-27 Seagate Technology Llc Low glide magneto-optical recording medium
TW455965B (en) * 2000-08-29 2001-09-21 Phoenix Prec Technology Corp Method for forming solder bumpers on IC package substrate and structure formed by the same
EP2425820B1 (en) 2007-02-11 2015-04-08 MAP Pharmaceuticals Inc Method of therapeutic administration of dhe to enable rapid relief of migraine while minimizing side effect profile

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JPH0664821B2 (ja) * 1984-12-30 1994-08-22 オリンパス光学工業株式会社 記録媒体の装着装置
EP0208503B1 (en) * 1985-07-04 1990-03-21 Matsushita Electric Industrial Co., Ltd. Signal recording disc
JP2633230B2 (ja) * 1985-09-26 1997-07-23 日本電気株式会社 磁気記憶体
JP2566924B2 (ja) * 1986-07-14 1996-12-25 キヤノン株式会社 光磁気記録装置
IT1199770B (it) * 1986-12-16 1988-12-30 Ausimont Spa Resine epossidiche ottenute mediante coreticolazione di prepolimeri epossidici fluorurati e prepolimeri epossidici non fluorurati
JPS63229643A (ja) * 1987-03-19 1988-09-26 Fujitsu Ltd 光磁気記録媒体
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JP2556709B2 (ja) * 1987-08-10 1996-11-20 アルプス電気株式会社 光磁気記録装置
US5053288A (en) * 1987-11-20 1991-10-01 Teijin Limited Optical recording medium
JPH01168115A (ja) * 1987-12-24 1989-07-03 Hitachi Electron Eng Co Ltd 波形発生装置
JPH0643854Y2 (ja) * 1988-01-25 1994-11-14 パイオニア株式会社 光磁気ディスク装置
JPH01227241A (ja) * 1988-03-04 1989-09-11 Alps Electric Co Ltd 光磁気記録媒体
US5237560A (en) * 1988-06-23 1993-08-17 Mitsubishi Denki Kabushiki Kaisha Optical disc cartridge
JP2804045B2 (ja) * 1988-07-29 1998-09-24 株式会社日立製作所 光記録媒体
EP0373763B1 (en) * 1988-12-12 1996-01-03 John P. Murphy Compact disc playback enhancer
JPH02308445A (ja) * 1989-05-23 1990-12-21 Fujitsu Ltd 光磁気ディスク

Also Published As

Publication number Publication date
US5506023A (en) 1996-04-09
DE69131855D1 (de) 2000-01-20
EP0756275B1 (en) 1999-12-15
ATE187839T1 (de) 2000-01-15
EP0756275A1 (en) 1997-01-29
HK1013500A1 (en) 1999-12-03
DE69131855T2 (de) 2000-04-13
EP0464674A3 (en) 1992-07-08
KR100248932B1 (ko) 2000-03-15
EP0464674A2 (en) 1992-01-08

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