KR920701946A - 광학식 기록매체 및 정보기록장치 - Google Patents

광학식 기록매체 및 정보기록장치

Info

Publication number
KR920701946A
KR920701946A KR1019910700391A KR910700391A KR920701946A KR 920701946 A KR920701946 A KR 920701946A KR 1019910700391 A KR1019910700391 A KR 1019910700391A KR 910700391 A KR910700391 A KR 910700391A KR 920701946 A KR920701946 A KR 920701946A
Authority
KR
South Korea
Prior art keywords
recording medium
optical
information
track
read
Prior art date
Application number
KR1019910700391A
Other languages
English (en)
Other versions
KR0158662B1 (ko
Inventor
다모쓰 야마가미
요이찌로 사꼬
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR920701946A publication Critical patent/KR920701946A/ko
Application granted granted Critical
Publication of KR0158662B1 publication Critical patent/KR0158662B1/ko

Links

Classifications

    • 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
    • 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
    • G11B7/0901—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 for track following only
    • G11B7/0904—Dithered tracking systems
    • 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
    • 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
    • G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
    • 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
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • 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
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24082—Meandering
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/213—Read-only discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525—Magneto-optical [MO] discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Abstract

내용 없음

Description

광학식 기록매체 및 정보기록장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명에 관한 광학식 기록매체의 일실시예인 광디스크상의 트랙을 모식적으로 나타낸 평면도이며, 제2도는 광자기디스크용 픽업의 구성을 나타낸 도면이며, 제3도는 포토디렉터의 구성을 나타낸 도면이다.

Claims (4)

  1. 광학적 수단에 의해 기록정보가 독출되는 광학식 기록매체에 있어서, 상기 기록정보의 베이스밴드신호의 고주파성분을 제거한 신호에 따라서 트랙을 트랙폭방향으로 변위시켜서 형성함으로써, 미리 재생전용정보가 기록되는 것을 특징으로 하는 광학식 기록매체.
  2. 제1항에 있어서, 상기 재생전용정보의 주파수는 상기 트랙을 주사했을 때에 얻어지는 트래킹에러신호의 주파수보다 충분히 높은 것을 특징으로 하는 광학식 기록매체.
  3. 제2항에 있어서, 상기 기록매체는 광자기디스크인 것을 특징으로 하는 광학식 기록매체.
  4. 광학적수단에 의해 기록정보가 독출되는 광학식 기록매체의 트랙을 형성하기 위한 정보기록장치에 있어서, 상기 트랙형성용의 기록빔을 상기 광기록매체의 트랙폭방향으로 변위시키는 편향수단과, 상기 편향수단을 제어하는 편향제어신호를 발생하는 편향제어 신호발생수단과, 상기 편향제어신호의 고주파성분을 제거하여, 상기 편향수단에 공급하는 로패스필터를 가진 것을 특징으로 하는 정보 기록 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019910700391A 1989-08-25 1990-08-22 광학식 기록매체 정보기록장치 및 정보기록방법 KR0158662B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1219411A JP2953710B2 (ja) 1989-08-25 1989-08-25 記録装置及び記録方法
JP89-219411 1989-08-25

Publications (2)

Publication Number Publication Date
KR920701946A true KR920701946A (ko) 1992-08-12
KR0158662B1 KR0158662B1 (ko) 1999-01-15

Family

ID=16734982

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910700391A KR0158662B1 (ko) 1989-08-25 1990-08-22 광학식 기록매체 정보기록장치 및 정보기록방법

Country Status (6)

Country Link
EP (1) EP0440810B1 (ko)
JP (1) JP2953710B2 (ko)
KR (1) KR0158662B1 (ko)
CA (1) CA2039737C (ko)
DE (1) DE69014588T2 (ko)
WO (1) WO1991003045A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100404530B1 (ko) * 1994-12-19 2004-02-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 다층기록매체및그매체를주사하는장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583297B2 (ja) * 1978-06-09 1983-01-20 株式会社日立製作所 情報記録再生方法，その装置およびその記録媒体
NL8000122A (nl) * 1980-01-09 1981-08-03 Philips Nv Schijfvormige, optisch uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen en/of weergeven van datainformatie in c.q. van zo'n registratiedrager.
NL8000123A (nl) * 1980-01-09 1981-08-03 Philips Nv Inrichting voor het schrijven van digitale informatie in een schijfvormige optisch uitleesbare registratiedrager.
JPS61236046A (ja) * 1985-04-10 1986-10-21 Sony Corp デイスク状記録媒体及びその製造装置
JP2565196B2 (ja) * 1986-09-30 1996-12-18 ソニー株式会社 記録装置及び記録方法
NL8800152A (nl) * 1988-01-22 1989-08-16 Philips Nv Optische uitleesbare registratiedrager van het beschrijfbare type, een inrichting voor het vervaardigen van een dergelijke registratiedrager, en inrichtingen voor het optekenen en/of uitlezen van informatie op/uit een dergelijke registratiedrager.

Also Published As

Publication number Publication date
KR0158662B1 (ko) 1999-01-15
EP0440810A1 (en) 1991-08-14
CA2039737A1 (en) 1991-02-26
DE69014588D1 (de) 1995-01-12
DE69014588T2 (de) 1995-05-04
EP0440810B1 (en) 1994-11-30
EP0440810A4 (en) 1992-10-14
WO1991003045A1 (fr) 1991-03-07
JP2953710B2 (ja) 1999-09-27
JPH0383231A (ja) 1991-04-09
CA2039737C (en) 1999-10-19

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