KR870005376A - 광학 판독 및 서입 장치 - Google Patents

광학 판독 및 서입 장치 Download PDF

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Publication number
KR870005376A
KR870005376A KR860009296A KR860009296A KR870005376A KR 870005376 A KR870005376 A KR 870005376A KR 860009296 A KR860009296 A KR 860009296A KR 860009296 A KR860009296 A KR 860009296A KR 870005376 A KR870005376 A KR 870005376A
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KR
South Korea
Prior art keywords
optical
record carrier
reading
moving
objective lens
Prior art date
Application number
KR860009296A
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English (en)
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KR910002751B1 (ko
Inventor
마사또시 요네꾸보
시게루 고구레
Original Assignee
하마 고이찌
세이꼬 엡슨 가부시끼 가이샤
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.)
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Application filed by 하마 고이찌, 세이꼬 엡슨 가부시끼 가이샤 filed Critical 하마 고이찌
Publication of KR870005376A publication Critical patent/KR870005376A/ko
Application granted granted Critical
Publication of KR910002751B1 publication Critical patent/KR910002751B1/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • 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
    • G11B11/10556—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
    • 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
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

내용 없음

Description

광학 판독 및 서입 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 광학 판독 및 서입 장치의 일실시예의 구성도.
제3도는 본 발명에 의한 광학 판독 및 서입 장치용 트랙킹 장치의 다른 실시예의 구성도.
* 도면의 주요 부분에 대한 부호의 설명
101 : 광학 기록매체, 102 : 스핀들 모터, 103 : 메이저 다이오드, 104 : 시준(視準)렌즈, 105 : 극 비임 분광기, 106 : 콘덴서 렌즈, 107 : 서보용 4분할 PIN광 다이오드, 108 : 총 반사 프리즘, 109 : 대물렌즈, 110 : 2-축 렌즈 작동자, 111 : 코일, 112 : 분석기, 113 : 데이타용 PIN광 다이오드, 114 : 선형 모터, 115 : 데이타 신호용 헤드 증폭기, 116 : 자기 제어기, 117 : 레이저 구동기, 118 : 서보 신호용 헤드 증폭기, 119 : 출력 데이타, 120 : 입력 데이타, 121 : 형상면, 122 : 트랙엑세스 신호, 123 : 프레임, 124 : 나이프 연부, 201 : 4-소자 스트립형 광 다이오드, 202 : 포커싱 작동자, 203 : 트랙킹 작동자, 204 : 헤드 증폭기, 205 : 신호 분배회로, 300 : 포커싱 작동자, 301 : 갈바닉 거울, 302 : 포커싱 작동자

Claims (4)

  1. 광학 판독 및 서입 장치로서, 비임 발생 장치와, 상기 비임 발생 장치로 부터의 비임을 광학 기록매체 상으로 집광시키기 위한 광학 장치와, 상기 광학 기록 매체로 부터 전송된 광을 검출하여, 상기 광학 기록 매체내에 저장된 데이타를 판독하기 위한 제1검출 장치와, 상기 비임 발생 장치, 상기 광학 장치 및 상기 제1검출 잠치를 지지하기 위한 프레임과, 상기 광학 기록매체에 평행한 상기 프레임을 이동하기 위한 제1구동 장치와, 상기 광학 장치를 광학 축의 방향으로 이동하기 위한 제2구동 장치와, 상기 광학 기록매체 사엥 소정의 스포트에 상기 광학 기록매체 상의 상기 비임 스포트를 이동하기 위한 비임 스포트 이동 장치 및 상기 광학 기록매체로 부터 반사된 광을 검출하여 상기 제2구동 장치 및 상기 비임 스포트 이동 장치에로 서보 신호를 발생하기 위한 제2검출 장치를 구비하는 것을 특징으로 하는 광학 판독 및 서입 장치.
  2. 제1항에 있어서, 상기 제1검출 장치는 상기 광학 기록 매체로부터 비임의 극화된 각을 검출하기 위한 분석기를 가지며, 상기 광학 기록매체를 자화하기 위한 자화 장치는 상기 광학 기록매체 근처에 제공되는 것을 특징으로 하는 광학 판독 및 서입 장치.
  3. 제1항에 있어서, 상기 광학 장치는 대물렌즈이며, 상기 비임 스포트 장치는 상기 광학 기록매체 상의 데이타 트랙에 대하여 수직 방향으로 상기 대물렌즈를 움직이도록 보조하는 것을 특징으로 하는 광학 판독 및 서입 장치.
  4. 제1항에 있어서, 상기 광학 장치는 대물렌즈이며, 상기 비임 스포트 이동 장치는 상기 대물렌즈에 대한 비임의 입사각을 변화하기 위한 입사각 변환 장치인 것을 특징으로 하는 광학 판독 및 서입 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860009296A 1985-11-08 1986-11-05 광학 판독 및 서입 장치 KR910002751B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP250128 1985-11-08
JP60250128A JP2552109B2 (ja) 1985-11-08 1985-11-08 光記録再生装置

Publications (2)

Publication Number Publication Date
KR870005376A true KR870005376A (ko) 1987-06-08
KR910002751B1 KR910002751B1 (ko) 1991-05-04

Family

ID=17203240

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860009296A KR910002751B1 (ko) 1985-11-08 1986-11-05 광학 판독 및 서입 장치

Country Status (8)

Country Link
US (1) US4750152A (ko)
JP (1) JP2552109B2 (ko)
KR (1) KR910002751B1 (ko)
DE (1) DE3637947A1 (ko)
FR (1) FR2590064A1 (ko)
GB (1) GB2182787B (ko)
HK (1) HK28591A (ko)
SG (1) SG77290G (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2760812B2 (ja) * 1988-09-28 1998-06-04 株式会社日立製作所 光再生装置及び光再生方法
NL8902615A (nl) * 1988-11-15 1990-06-01 Seiko Epson Corp Optisch registratiestelsel.
US5179544A (en) * 1989-03-28 1993-01-12 U.S. Philips Corporation Control system for the magnetic head of a magneto-optical disc apparatus
US5235591A (en) * 1990-01-19 1993-08-10 Hitachi, Ltd. Stack type optical disc apparatus, sealed and separate type optical head therefor and optical disc medium
JPH07176168A (ja) * 1991-09-24 1995-07-14 Kalok Corp 大容量薄型ディスクドライブシステム、ディスクドライブアセンブリ及び組立方法
US5596738A (en) * 1992-01-31 1997-01-21 Teac Corporation Peripheral device control system using changeable firmware in a single flash memory
KR950003174B1 (ko) * 1992-06-09 1995-04-01 주식회사금성사 광자기 기록장치
US5966363A (en) * 1997-01-07 1999-10-12 Read Rite Corporation Optical and magneto-optic data storage systems utilizing transmissive media
EP1553581A1 (en) * 2004-01-06 2005-07-13 Deutsche Thomson-Brandt Gmbh Apparatus and method for playback of optical recording media

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR205243A1 (es) * 1972-05-11 1976-04-21 Philips Nv Aparato para la lectura de un portador de grabacion reflector plano
FR2280150B1 (fr) * 1974-07-26 1977-01-07 Thomson Brandt Dispositif de detection d'ecart de mise au point d'une tete de lecture optique par rapport a une surface de lecture
FR2288370A1 (fr) * 1974-10-18 1976-05-14 Thomson Brandt Perfectionnements aux supports d'information a lecture optique
JPS54102109A (en) * 1978-01-27 1979-08-11 Matsushita Electric Ind Co Ltd Focusing method of optical recorder
US4410277A (en) * 1978-11-01 1983-10-18 Hitachi, Ltd. Apparatus for detecting magneto-optical anisotropy
US4484319A (en) * 1980-09-19 1984-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for locating a track on disc-like optical information carriers
FR2522860B1 (fr) * 1982-03-02 1989-07-13 Thomson Csf Tete optique d'ecriture-lecture d'un disque optique et dispositif optique associe a une telle tete
EP0098076A1 (en) * 1982-06-14 1984-01-11 Nec Corporation Beam access apparatus for optical disc system
GB2126406B (en) * 1982-08-09 1986-12-17 Drexler Tech Optical data retrieval system for multi-characteristic reflective data storage media

Also Published As

Publication number Publication date
GB2182787B (en) 1989-10-04
GB2182787A (en) 1987-05-20
US4750152A (en) 1988-06-07
GB8626284D0 (en) 1986-12-03
KR910002751B1 (ko) 1991-05-04
JP2552109B2 (ja) 1996-11-06
HK28591A (en) 1991-04-26
JPS62110629A (ja) 1987-05-21
SG77290G (en) 1990-11-23
DE3637947A1 (de) 1987-05-14
FR2590064A1 (fr) 1987-05-15

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