CA1270059A - Method of detecting the position of an optical head - Google Patents

Method of detecting the position of an optical head

Info

Publication number
CA1270059A
CA1270059A CA000505632A CA505632A CA1270059A CA 1270059 A CA1270059 A CA 1270059A CA 000505632 A CA000505632 A CA 000505632A CA 505632 A CA505632 A CA 505632A CA 1270059 A CA1270059 A CA 1270059A
Authority
CA
Canada
Prior art keywords
optical
track
optical card
card
optical head
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.)
Expired
Application number
CA000505632A
Other languages
English (en)
French (fr)
Inventor
Hideki Hosoya
Kazuhiko Matsuoka
Fumiaki Kawaguchi
Kazuo Minoura
Kenichi Suzuki
Masahiko Enari
Masayuki Usui
Hiroshi Matsuoka
Akio Aoki
Satoshi Shikichi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of CA1270059A publication Critical patent/CA1270059A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/34—Guiding record carriers during transducing operation, e.g. for track following
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/015—Aligning or centering of the sensing device with respect to the record carrier
    • 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
    • G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
CA000505632A 1985-04-05 1986-04-02 Method of detecting the position of an optical head Expired CA1270059A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60072042A JP2556465B2 (ja) 1985-04-05 1985-04-05 記録再生装置の光ヘッドアクセス方法
JP072042/1985 1985-04-05

Publications (1)

Publication Number Publication Date
CA1270059A true CA1270059A (en) 1990-06-05

Family

ID=13477941

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000505632A Expired CA1270059A (en) 1985-04-05 1986-04-02 Method of detecting the position of an optical head

Country Status (6)

Country Link
JP (1) JP2556465B2 (de)
CA (1) CA1270059A (de)
CH (2) CH671475A5 (de)
DE (1) DE3611334A1 (de)
FR (1) FR2580085B1 (de)
GB (1) GB2174531B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1294705C (en) * 1986-04-09 1992-01-21 Wataru Sakagami Optical information recording medium and recording-reproducing apparatus
US4982391A (en) * 1987-02-20 1991-01-01 Canon Kabushiki Kaisha Method and apparatus for accessing a desired track of a recording medium during a stopped state of recording or reproduction
JP2549664B2 (ja) * 1987-07-31 1996-10-30 オリンパス光学工業株式会社 光カ−ド装置
JPH0610879B2 (ja) * 1988-07-08 1994-02-09 シャープ株式会社 光メモリ装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398223A (en) 1955-06-14 1983-08-09 Lemelson Jerome H System for recording video information on a record card
US3518658A (en) * 1964-12-16 1970-06-30 Ibm Digital comparison-to-analog signal converter
US3550085A (en) * 1965-06-09 1970-12-22 Daniel Silverman Information system using arrays of multiple spot patterns
NL7212015A (de) * 1972-09-04 1974-03-06
DE2543276A1 (de) * 1975-09-27 1977-03-31 Licentia Gmbh Wiedergabesystem fuer auf einem bandfoermigen traeger aufgezeichnete informationen
FR2345769A1 (fr) * 1976-03-25 1977-10-21 Blazevic Milos Dispositif d'enregistrement, de lecture et de traduction automatique et support correspondant
CH612524A5 (en) * 1976-12-28 1979-07-31 Gretag Ag Identification card with optically retrievable information stored in three-dimensional form
US4296491A (en) * 1979-07-30 1981-10-20 Atlantic Richfield Company Information carrier having inter-track identification code information
GB2092791B (en) * 1981-02-02 1984-12-05 Smiths Industries Plc Record carriers
US4402061A (en) * 1981-10-15 1983-08-30 Burroughs Corporation Preformatted optical media for use in an optical memory system
US4519054A (en) * 1982-06-03 1985-05-21 News Log International, Inc. Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby
US4534031A (en) * 1982-08-02 1985-08-06 News Log International Coded data on a record carrier and method for encoding same
JPS59161524U (ja) * 1983-04-14 1984-10-29 ティーディーケイ株式会社 光カ−ド

Also Published As

Publication number Publication date
DE3611334C2 (de) 1992-06-25
GB8608345D0 (en) 1986-05-08
CH674681A5 (de) 1990-06-29
GB2174531A (en) 1986-11-05
FR2580085B1 (de) 1990-09-21
JP2556465B2 (ja) 1996-11-20
FR2580085A1 (de) 1986-10-10
DE3611334A1 (de) 1986-10-16
GB2174531B (en) 1990-05-30
CH671475A5 (de) 1989-08-31
JPS61230629A (ja) 1986-10-14

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Legal Events

Date Code Title Description
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