CA2248644A1 - Dispositif de lecture et d'ecriture pour supports optiques d'enregistrement - Google Patents

Dispositif de lecture et d'ecriture pour supports optiques d'enregistrement Download PDF

Info

Publication number
CA2248644A1
CA2248644A1 CA002248644A CA2248644A CA2248644A1 CA 2248644 A1 CA2248644 A1 CA 2248644A1 CA 002248644 A CA002248644 A CA 002248644A CA 2248644 A CA2248644 A CA 2248644A CA 2248644 A1 CA2248644 A1 CA 2248644A1
Authority
CA
Canada
Prior art keywords
optical head
arrangement
sensing means
tracks
optical
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002248644A
Other languages
English (en)
Inventor
Cornelis Verburg
Fred Bouwmeester
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales Nederland BV
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2248644A1 publication Critical patent/CA2248644A1/fr
Abandoned legal-status Critical Current

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
    • 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
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G11B7/08588—Sled-type positioners with position sensing by means of an auxiliary system using an external scale
    • 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
    • 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
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners

Abstract

L'invention concerne un dispositif de lecture et d'écriture conçu pour des supports optiques d'enregistrement. Le support optique est lu ou enregistré à l'aide d'une tête optique mobile (14). Pendant une opération de recherche, on utilise un compteur de pistes afin de déterminer la position de la tête optique. Un deuxième indicateur de position (18, 20, 21) est fixé à la tête optique afin de limiter la vitesse transversale de ladite tête optique en cas de non disponibilité de l'information de position du compteur de pistes.
CA002248644A 1996-03-21 1997-03-12 Dispositif de lecture et d'ecriture pour supports optiques d'enregistrement Abandoned CA2248644A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1002671A NL1002671C2 (nl) 1996-03-21 1996-03-21 Lees/schrijfinrichting voor optische media.
NL1002671 1996-03-21

Publications (1)

Publication Number Publication Date
CA2248644A1 true CA2248644A1 (fr) 1997-09-25

Family

ID=19762538

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002248644A Abandoned CA2248644A1 (fr) 1996-03-21 1997-03-12 Dispositif de lecture et d'ecriture pour supports optiques d'enregistrement

Country Status (9)

Country Link
EP (1) EP0888613A1 (fr)
JP (1) JP2000508106A (fr)
KR (1) KR20000064539A (fr)
CN (1) CN1214143A (fr)
AU (1) AU2155897A (fr)
CA (1) CA2248644A1 (fr)
NL (1) NL1002671C2 (fr)
NO (1) NO984193D0 (fr)
WO (1) WO1997035305A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880000999B1 (ko) * 1981-11-25 1988-06-10 미쓰다 가쓰시게 광학적 정보 기억장치
KR910003458B1 (ko) * 1986-12-02 1991-05-31 미쓰비시뎅끼 가부시끼가이샤 광디스크의 구동장치
EP0394572B1 (fr) * 1989-04-26 1995-06-28 International Business Machines Corporation Dispositif de mémorisation de données
KR920006926A (ko) * 1990-09-29 1992-04-28 정용문 광디스크 구동장치의 트랙편심 보정 방법 및 그 장치
US5481510A (en) * 1992-02-28 1996-01-02 Fujitsu Limited Seek control system for optical storage apparatus
JP2928849B2 (ja) * 1993-12-10 1999-08-03 株式会社日本コンラックス 光学的情報記録再生装置におけるトラックシーク方法及び装置

Also Published As

Publication number Publication date
NL1002671C2 (nl) 1997-09-23
CN1214143A (zh) 1999-04-14
EP0888613A1 (fr) 1999-01-07
AU2155897A (en) 1997-10-10
KR20000064539A (ko) 2000-11-06
JP2000508106A (ja) 2000-06-27
NO984193L (no) 1998-09-11
WO1997035305A1 (fr) 1997-09-25
NO984193D0 (no) 1998-09-11

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Legal Events

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