GB2174531B - Moving an optical head - Google Patents

Moving an optical head

Info

Publication number
GB2174531B
GB2174531B GB8608345A GB8608345A GB2174531B GB 2174531 B GB2174531 B GB 2174531B GB 8608345 A GB8608345 A GB 8608345A GB 8608345 A GB8608345 A GB 8608345A GB 2174531 B GB2174531 B GB 2174531B
Authority
GB
United Kingdom
Prior art keywords
moving
optical head
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 - Lifetime
Application number
GB8608345A
Other versions
GB2174531A (en
GB8608345D0 (en
Inventor
Kazuhiko Matsuoka
Hideki Hosoya
Akio Aoki
Masahiko Enari
Masayuki Usui
Hiroshi Matsuoka
Kazuo Minoura
Kenichi Suzuki
Satoshi Shikichi
Fumiaki Kawaguchi
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
Publication of GB8608345D0 publication Critical patent/GB8608345D0/en
Publication of GB2174531A publication Critical patent/GB2174531A/en
Priority to GB8922654A priority Critical patent/GB2221563B/en
Application granted granted Critical
Publication of GB2174531B publication Critical patent/GB2174531B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
GB8608345A 1985-04-05 1986-04-04 Moving an optical head Expired - Lifetime GB2174531B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8922654A GB2221563B (en) 1985-04-05 1989-10-09 Optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60072042A JP2556465B2 (en) 1985-04-05 1985-04-05 Optical head access method for recording / reproducing apparatus

Publications (3)

Publication Number Publication Date
GB8608345D0 GB8608345D0 (en) 1986-05-08
GB2174531A GB2174531A (en) 1986-11-05
GB2174531B true GB2174531B (en) 1990-05-30

Family

ID=13477941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8608345A Expired - Lifetime GB2174531B (en) 1985-04-05 1986-04-04 Moving an optical head

Country Status (6)

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

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 (en) * 1987-07-31 1996-10-30 オリンパス光学工業株式会社 Optical card device
JPH0610879B2 (en) * 1988-07-08 1994-02-09 シャープ株式会社 Optical memory device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1073875A (en) * 1964-12-16 1967-06-28 Ibm A system for cyclically generating a control signal for controlling the operation of a positionable mechanism
US3550085A (en) * 1965-06-09 1970-12-22 Daniel Silverman Information system using arrays of multiple spot patterns
GB1573563A (en) * 1976-03-25 1980-08-28 Blazevic M Means for rocording and reproducing sounds and displaying an associated written test
GB2055503A (en) * 1979-07-30 1981-03-04 Atlantic Richfield Co Information carrier
GB2092791A (en) * 1981-02-02 1982-08-18 Smiths Industries Plc Record carriers
EP0077641A2 (en) * 1981-10-15 1983-04-27 BURROUGHS CORPORATION (a Delaware corporation) Method for improved focusing control in an optical memory system

Family Cites Families (7)

* 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
NL7212015A (en) * 1972-09-04 1974-03-06
DE2543276A1 (en) * 1975-09-27 1977-03-31 Licentia Gmbh Reproduction system for data carried on tapes - has monochromatic light source and pick-up units for optical signals to be converted to audio output
CH612524A5 (en) * 1976-12-28 1979-07-31 Gretag Ag Identification card with optically retrievable information stored in three-dimensional form
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 (en) * 1983-04-14 1984-10-29 ティーディーケイ株式会社 optical card

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1073875A (en) * 1964-12-16 1967-06-28 Ibm A system for cyclically generating a control signal for controlling the operation of a positionable mechanism
US3550085A (en) * 1965-06-09 1970-12-22 Daniel Silverman Information system using arrays of multiple spot patterns
GB1573563A (en) * 1976-03-25 1980-08-28 Blazevic M Means for rocording and reproducing sounds and displaying an associated written test
GB2055503A (en) * 1979-07-30 1981-03-04 Atlantic Richfield Co Information carrier
GB2092791A (en) * 1981-02-02 1982-08-18 Smiths Industries Plc Record carriers
EP0077641A2 (en) * 1981-10-15 1983-04-27 BURROUGHS CORPORATION (a Delaware corporation) Method for improved focusing control in an optical memory system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
WO A1 84/02221 *
WO A1 84/04990 *

Also Published As

Publication number Publication date
JP2556465B2 (en) 1996-11-20
GB2174531A (en) 1986-11-05
FR2580085A1 (en) 1986-10-10
FR2580085B1 (en) 1990-09-21
CA1270059A (en) 1990-06-05
DE3611334A1 (en) 1986-10-16
CH671475A5 (en) 1989-08-31
CH674681A5 (en) 1990-06-29
GB8608345D0 (en) 1986-05-08
JPS61230629A (en) 1986-10-14
DE3611334C2 (en) 1992-06-25

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20060403