KR880002145A - 디스크 기록재생장치 - Google Patents

디스크 기록재생장치 Download PDF

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KR880002145A
KR880002145A KR870006664A KR870006664A KR880002145A KR 880002145 A KR880002145 A KR 880002145A KR 870006664 A KR870006664 A KR 870006664A KR 870006664 A KR870006664 A KR 870006664A KR 880002145 A KR880002145 A KR 880002145A
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optical
disc
light beam
information signal
optical head
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KR870006664A
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KR950010417B1 (ko
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다다시 오츠키
후미아키 헨미
유헤이 고바야시
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오가 노리오
소니 가부시키가이샤
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Priority claimed from JP61155732A external-priority patent/JPS6310332A/ja
Priority claimed from JP61170425A external-priority patent/JP2642928B2/ja
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Publication of KR950010417B1 publication Critical patent/KR950010417B1/ko

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    • 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
    • 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
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • 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
    • G11B11/10515—Reproducing
    • 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
    • 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
    • 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

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  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

내용 없음

Description

디스크 기록재생장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명에 관한 디스크 기록재생장치의 일례를 나타내는 개략구성도
제2도는 제1도에 나타낸 예에 있어서의 광학헤드부와 마그네트와의 위치관계를 나타내는 개략구성도
제3도는 제1도에 나타낸 예에 있어서의 광학헤드부의 구체예를 나타내는 개략구성도

Claims (13)

  1. 장착되어 있는 기입가능 광디스크를 회전시키는 디스크구동부와, 상기 디스크구동부에 장착된 기입가능 광디스크의 중앙부를 사이에 두고 서로 대향하는 동시에 각각 기입가능 광디스크에 대면하고 있는 제1 및 제2의 광학헤드부와, 상기 제1 및 제2 광학헤드부는 각각 기록 트랙에 대하여 정보신호의 기입 및 소거용 제1의 광 빔 및 기록트랙으로부터의 정보신호의 판독용 제2의 광 빔을 발생하고, 제1 광 빔이 기록트랙에 따르는 방향으로 제2 광 빔보다 선행하는 상태가 되도록 상기 제1 및 제2 광 빔을 상기 디스크구동부에 의해 회전되는 기입가능 광디스크에 입사시키며, 상기 디스크구동부에 장착된 기입가능 광디스크의 반경방향으로 상호 근접 또는 격리되도록 동시에 상기 제1 및 제2 광학헤드부를 이동시키는 헤드구동부로 이루어진 디스크 기록재생장치.
  2. 제1항에 있어서, 상기 디스크구동부는 기입가능 광디스크의 중앙부에 위치하도록 상기 제1 및 제2 광학헤드부사이에 회전 가능하게 설치되어 있는 디스크장착부와, 소정 속도로 상기 디스크를 회전시키는 디스크장착부에 연결되어 있는 모터로 이루어진 디스크 기록재생장치.
  3. 제1항에 있어서, 상기 헤드구동부는 상기 제1 및 제2 광학헤드부가 각각 이동하는 것을 안내하는 상기 디스크구동부에 장착된 기입가능 광디스크의 반경방향으로 각각 뻗어 배설된 한쌍의 가이드 부재와, 상기 한쌍의 가이드부재에 따라서 상기 제1 및 제2 광학헤드부를 각각 이동시키는 한쌍의 헤드구동부로 이루어진 디스크 기록재생장치.
  4. 3항에 있어서, 상기 헤드구동부는 상기 제1 및 제2 광학헤드부의 이동을 제어하므로써, 상기 제1 및 제2 광학헤드부로부터 발산되는 제1 및 제2 광 빔이 상기 디스크구동부에 장착된 기입가능 광디스크에 설치된 기록트랙중의 하나의 공통트랙에 입사되는 디스크 기록재생장치.
  5. 제1항에 있어서, 상기 제1 및 제2 광학헤드부는 각각 상기 제1 및 제2 광 빔을 발생하는 제1 및 제2 레이저광원과, 상기 제1 및 제2 레이저광원으로부터의 상기 제1 및 제2 광 빔을 상기 디스크구동부에 장착된 기입가능 광디스크에 접속시키기 위하여 상기 제1 및 제2 광 빔에 공통으로 설치된 대물렌즈부와, 상기 제1 및 제2 광 빔을 각각 투과시키는 광로를 형성하는 광학부로 이루어진 디스크 기록재생장치.
  6. 제5항에 있어서, 상기 제1 및 제2 광학헤드부는 또 상기 디스크구동부에 장착된 기능가능 광디스크로부터 반사되는 최소한 상기 제2 광 빔을 검출하는 광검출부로 이루어진 디스크 기록재생장치.
  7. 제6항에 있어서, 상기 제1 및 제2 레이저광원은 상이한 파장으로 상기 제1 및 제2 광 빔을 발생시키는 디스크 기록재생장치.
  8. 제7항에 있어서, 상기 광학부는 상기 디스크구동부에 장착된 기입가능 광디스크로부터 반사되는 상기 제1 및 제2 광 빔을 분리하기 위하여 상기 제1 및 제2 광 빔에 설치된 광로에 공통으로 배설된 광 빔 분리수단을 포함하는 디스크 기록재생장치.
  9. 제5항에 있어서, 또 상기 광검출부로부터 얻은 검출출력신호에 따라서 판독신호, 트래킹에러신호 및 포커스에러신호를 발생하는 신호형성부로 이루어지는 디스크 기록재생장치.
  10. 제1항에 있어서, 또 상기 디스크구동부에 장착된 기입가능 광디스크를 사이에 두고 상기 제1 광학헤드부와 대향하여 배설된 제1자계형성부와 상기 디스크구동부에 장착된 기입가능 광디스크를 사이에두고 상기 제2광학헤드부와 대향하여 배설된 제2자계 형성부로 이루어지며, 상기 제1 및 제2자계형성부는 상기 디스크구동부에 장착된 기입가능 광디스크의 반경방향으로 뻗어 있는 디스크 기록재생장치.
  11. 제10항에 있어서, 상기 제1 및 제2자계형성부는 상기 디스크구동부에 장착된 기입가능 광디스크에 서로 반대방향으로 작용하는 자계를 각각 형성하도록 배치된 디스크 기록재생장치.
  12. 제1항에 있어서, 또 상기 제1 및 제2광학헤드부중 하나로부터의 상기 제1 광 빔에 의하여 기록트랙의 일부분에 형성된 각 섹터에 정보신호를 기입하고, 상기 제1 및 제2광학헤드중 하나로부터의 상기 제2광 빔에 의하여 섹터에 기입된 정보신호를 판독하는 광 빔 제어부와, 상기 제1 및 제2광학헤드부의 동작과 상기 광 빔 제어부의 동작을 제어하는 동작제어부로 이루어지는 디스크 기록재생장치.
  13. 제12항에 있어서, 상기 동작제어부는 상기 제1 및 제2광학헤드부중 하나로부터의 상기 제1 광 빔에 의해 기록트랙의 최소한 1섹터에 정보신호를 기입하고, 상기 제2 광 빔에 의해 상기 제1 섹터에 기입된 정보신호를 판독하는 수단과 상기 제1 및 제2 광학헤드부중 하나로부터의 상기 제2 광 빔에 의해 판독된 정보신호에 따라서 상기 정보신호가 상기 1섹터에 적정히 기입되어 있는지의 여부를 검증하는 수단과 상기 검증수단에 의해 상기 1섹터에 정보신호가 적정하게 기입되어 있지 않다고 판단되었을 때, 상기 제1 및 제2광학헤드부중 하나로부터의 상기 제1 광 빔에 의해 상기 1섹터에 기입된 것과 동일한 정보신호를 상기 제1섹터를 포함하는 기록트랙상의 소정 위치에 설치된 최소한 1교체섹터부에 재기입하는 수단으로 이루어진 디스크 기록재생장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870006664A 1986-07-02 1987-06-30 디스크 기록재생장치 KR950010417B1 (ko)

Applications Claiming Priority (14)

Application Number Priority Date Filing Date Title
JP61155732A JPS6310332A (ja) 1986-07-02 1986-07-02 デイスク記録再生装置
JP?????86-155732 1986-07-02
JP155732 1986-07-02
JP?????86-156914 1986-07-03
JP156914 1986-07-03
JP159379 1986-07-07
JP?????86-159379 1986-07-07
JP170428 1986-07-18
JP61170425A JP2642928B2 (ja) 1986-07-18 1986-07-18 光デイスク記録再生装置
JP?????86-170425 1986-07-18
JP?????86-171318 1986-07-21
JP171318 1986-07-21
JP174238 1986-07-24
JP?????86-174238 1986-07-24

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Publication Number Publication Date
KR880002145A true KR880002145A (ko) 1988-04-29
KR950010417B1 KR950010417B1 (ko) 1995-09-16

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US (1) US4845696A (ko)
EP (1) EP0252445B1 (ko)
KR (1) KR950010417B1 (ko)
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Also Published As

Publication number Publication date
KR950010417B1 (ko) 1995-09-16
US4845696A (en) 1989-07-04
AU7450787A (en) 1988-01-07
AU600280B2 (en) 1990-08-09
EP0252445A1 (en) 1988-01-13
DE3776597D1 (de) 1992-03-19
EP0252445B1 (en) 1992-02-05

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