KR860000636A - 광자기 정보 기록장치 - Google Patents

광자기 정보 기록장치 Download PDF

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KR860000636A
KR860000636A KR1019850004089A KR850004089A KR860000636A KR 860000636 A KR860000636 A KR 860000636A KR 1019850004089 A KR1019850004089 A KR 1019850004089A KR 850004089 A KR850004089 A KR 850004089A KR 860000636 A KR860000636 A KR 860000636A
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recording
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magnetic field
recording film
magnetization
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KR920005757B1 (ko
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마쓰시(외 3) 사이고
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미쓰다 가쓰시게
가부시기 가이샤 히다찌 세이사꾸쇼
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • 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
    • 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
    • G11B11/10504—Recording
    • G11B11/10506—Recording by modulating only the light beam of the transducer
    • 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
    • G11B11/1055—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
    • G11B11/1056—Switching or mechanically reversing the magnetic field generator
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
    • G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
    • G11B13/045—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties combined recording by magnetic and optic means
    • 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

Abstract

내용 없음

Description

광자기 정보 기록장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 1실시예인 광자기 디스크 장치의 구성도.
제2도는 제1도의 장치에서 사용하는 디스크의 기록포오매트의 1예를 도시한 도면.
제3도는 본 발명에 의한 정보의 기록, 재생, 소거동작의 1예를 설명하기 위한 타임챠아트.

Claims (12)

  1. 자화방향의 변화에 의하여 정보를 기록하고, 또 소거할 수가 있는 기록막을 가진 기록단체에다 레이저광과 자장을 사용해서 광열자기효과에 의하여 정보의 기록과 소거를 할때에 상기 레이저광을 상기 기록막위에다 광스폿트로서 집속시켜, 상기 레이저광의 강도를 상기 기록막의 자화를 없애게 하는 제1의 레벨에 절환하기 이전에, 상기 자장의 인가방향을 적어도 기록시와 소거시와의 사이에서 절환시켜 상기 기록막에 인가하여 두는 광자기 정보 처리방법.
  2. 특허청구범위 제1항에 있어서, 기록동작과 소거동작과의 사이에 적어도 상기 기록단체의 일주분의 재생동작을 마련하고, 그 재생동작중에 상기 레이저광의 강도를, 상기 기록막의 자화를 없어지지 않게 하는 제2의 레벨이 되게 하여두는 광자기 정보 처리방법.
  3. 특허청구범위 제2항에 있어서, 상기 재생동작중에는 상기 자장의 인가를 정지시켜두고, 상기 레이저광의 강도를 상기 제2의 레벨에서 제1의 레벨로 절환하기 전에 상기 자장의 인가를 개시시키는 것을 특징으로 한다.
  4. 특허청구범위 제1항에 있어서, 상기 기록단체로서 디스크 1주의 각 트랙이 다수의 섹터로 분할되어서 이루어지게 되고 이 섹터의 각각이 적어도 그 섹터를 식별하는 섹터번호를 포함하는 헤더 신호를 기록한 헤더부와, 이 헤더부에 뒤이어지는 데이터부를 가지며, 그 데이터부에다 자화정보를 기록할 수 있는 디스크 모양의 단체를 사용하고, 상기 광스폿트가 목표섹터에 대하여 소정의 수만큼 앞에 있는 섹터에 위치한 때로부터, 상기 목표섹터에 대하여 실행할 동작에 따르는 소정의 방향의 상기 자장을 인가하여 두는 것을 특징으로 한다.
  5. 특허청구범위 제4항에 있어서, 기록동작과 소거동작과의 사이에다 적어도 디스크 일주분의 재생동작을 마련하고, 그 재생동작중에 상기 레이저광의 강도를 상기 기록막의 자화를 없어지지 않게 하는 제2의 레벨로 하여두는 것을 특징으로 한다.
  6. 특허청구범위 제5항에 있어서, 상기 자장의 인가방향의 절환을 상기 목표섹터에 대하여 소정의 수만큼 앞에 있는 섹터에서 검출되는 헤더신호를 사용해서 실행하고 상기 레이저광의 강도 절환을 상기 목표섹터에서 검출된 헤더신호를 사용하여 실행하는 것을 특징으로 한다.
  7. 특허청구범위 제6항에 있어서, 상기 재생동작중에는 상기 자장의 인가를 정지하여 두고, 상기 목표섹터에 대하여 소정의 수만큼 앞에 있는 섹터에서 검출되는 헤더신호를 사용하여 상기 목표섹터에 대해서 실행할 동작에 따르는 소정의 방향의 상기 자장의 인가를 개시하게 하는 것을 특징으로 한다.
  8. 자화방향의 변화에 의하여, 정보를 기록하고 또 소거할 수가 있는 기록막을 가진 기록단체로서 각트랙이 다수의 섹터로 분할되어서 이루어지며, 각 섹터의 각각이 적어도 그 섹터를 식별하는 섹터번호를 포함하는 헤더신호를 기록한 헤더부와, 이 헤더 일부에 계속되는 데이터부를 가지며, 그 데이터부에다 자화정보를 기록할 수 있는 디스크 모양의 단체와, 레이저의 광원과, 그리고 그 레이저광원으로부터의 레이저광을 상기 기록단체의 기록막위에다 광스폿트로서 집속시키는 광학계와, 그리고 또 상기 기록막에다 자장을 인가하는 코일수단, 그리고 상기 기록막으로부터의 광에 의하여 상기 헤더신호와 자기정보를 검출하는 검출계통과, 상기 자장의 인가방향을 적어도 기록시와 소거시와의 사이에서 절환하여서 인가하는 코일 구동수단과, 또 상기 검출계통에 결합되고 검출된 헤더신호를 사용하여 상기 광스폿트가 목표섹터에 대하여 소정의 수만큼 앞에 있는 섹터에 위치해 잇는 것을 검출하는 제1수단과, 해당 제1의 수단에 결합되어 상기 목표 섹터에 대해서 실행할 동작에 따르는 소정의 방향의 자장이 인가되게끔 상기 코일 구동수단을 제어하는 신호를 발생하는 제2의 수단을 구비한 광자기 정보 처리장치.
  9. 특허청구범위 제8항에 있어서, 상기 제1의 수단은 상기 검출계통에 의하여 검출된 헤더신호에 포함되는 섹터번지를 기억하는 제1의 기억수단과 상기 목표섹테에 대한 섹터 번지를 기억하는 제2의 기억수단, 그리고 상기 제1과 제2의 기억수단에 결합되어 어느 한쪽의 기억수단의 기억내용에 대하여 소정의 연산을 한 후에 양쪽의 기억내용을 비교하는 비교수단으로 이루어진 것을 특징으로 한다.
  10. 특허청구범위 제8항에 있어서, 상기 제2의 수단은, 상기 목표섹터에 대하여 실행할 기록동작과, 및 소거동작의 한쪽에 따라서 동작이 가능한 상태로 어느 한쪽에 셋트되고, 상기 제1의 수단의 출력에 의하여 상기 제어신호를 발생하는 제1과 제2의 회로로 이루어지는 것을 특징으로 한다.
  11. 특허청구범위 제8항에 있어서, 상기 레이저광의 강도를, 상기 기록막의 자화를 없애게 하는 제1의 레벨과, 상기 기록막의 자화를 없애지 않게 하는 제2의 레벨과의 사이에서 절환시키는 레이저광의 변조수단을 마련하고, 기록동작과 소거동작과의 사이에서 상기 제2의 레벨에 절환한 광스폿트에 의하여 적어도 디스크 일주분의 재생동작을 하도록 구성한 것을 특징으로 한다.
  12. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850004089A 1984-06-13 1985-06-11 광자기 정보처리방법 및 그 장치 KR920005757B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59120000A JPH0619863B2 (ja) 1984-06-13 1984-06-13 光磁気情報記憶方法及び装置
JP59-120000 1984-06-13

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KR860000636A true KR860000636A (ko) 1986-01-30
KR920005757B1 KR920005757B1 (ko) 1992-07-18

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US (1) US4712203A (ko)
EP (1) EP0164745B1 (ko)
JP (1) JPH0619863B2 (ko)
KR (1) KR920005757B1 (ko)
DE (1) DE3586072D1 (ko)

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JPH0664767B2 (ja) * 1984-10-12 1994-08-22 株式会社東芝 光情報記録方法及び光情報記録装置
JPS61276103A (ja) * 1985-05-31 1986-12-06 Canon Inc 光磁気メモリ記録方法
US4926408A (en) * 1985-06-14 1990-05-15 Kabushiki Kaisha Toshiba Magneto-optic recording/erasing system with simultaneous dual head control and disk error detection
US4937799A (en) * 1985-12-13 1990-06-26 Canon Kabushiki Kaisha Method and apparatus for setting light quantity most suitable for reproducing information from an optical recording medium
JPH0687323B2 (ja) * 1986-04-10 1994-11-02 キヤノン株式会社 光磁気記録再生装置
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JPH0619863B2 (ja) 1994-03-16
DE3586072D1 (de) 1992-06-25
JPS61950A (ja) 1986-01-06
EP0164745B1 (en) 1992-05-20
EP0164745A2 (en) 1985-12-18
EP0164745A3 (en) 1988-03-30
US4712203A (en) 1987-12-08
KR920005757B1 (ko) 1992-07-18

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