FR2646546B1 - METHOD FOR OPTICALLY RECORDING AND / OR REPRODUCING INFORMATION ON A CARD-LIKE MEDIUM - Google Patents

METHOD FOR OPTICALLY RECORDING AND / OR REPRODUCING INFORMATION ON A CARD-LIKE MEDIUM

Info

Publication number
FR2646546B1
FR2646546B1 FR9007160A FR9007160A FR2646546B1 FR 2646546 B1 FR2646546 B1 FR 2646546B1 FR 9007160 A FR9007160 A FR 9007160A FR 9007160 A FR9007160 A FR 9007160A FR 2646546 B1 FR2646546 B1 FR 2646546B1
Authority
FR
France
Prior art keywords
card
medium
reproducing information
optically recording
optically
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 - Fee Related
Application number
FR9007160A
Other languages
French (fr)
Other versions
FR2646546A1 (en
Inventor
Enari Masahiko
Shikichi Satoshi
Kawaguchi Fumiaki
Suzuki Kenichi
Usui Masayuki
Matsuoka Hiroshi
Matsuoka Kazuhiko
Hosoya Hideki
Aoki Akio
Minoura Kazuo
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
Priority claimed from JP59275172A external-priority patent/JPH0756705B2/en
Priority claimed from JP60084109A external-priority patent/JP2592794B2/en
Priority claimed from JP60084111A external-priority patent/JPH0727638B2/en
Priority claimed from JP60124696A external-priority patent/JPH0727639B2/en
Priority claimed from FR858519290A external-priority patent/FR2580413B1/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of FR2646546A1 publication Critical patent/FR2646546A1/en
Application granted granted Critical
Publication of FR2646546B1 publication Critical patent/FR2646546B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1018—Source control

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
FR9007160A 1984-12-29 1990-06-08 METHOD FOR OPTICALLY RECORDING AND / OR REPRODUCING INFORMATION ON A CARD-LIKE MEDIUM Expired - Fee Related FR2646546B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP59275172A JPH0756705B2 (en) 1984-12-29 1984-12-29 Optical information recording / reproducing method
JP60084109A JP2592794B2 (en) 1985-04-19 1985-04-19 Optical information recording / reproducing method
JP60084111A JPH0727638B2 (en) 1985-04-19 1985-04-19 Optical information recording / reproducing method
JP60124696A JPH0727639B2 (en) 1985-06-07 1985-06-07 Optical information recording / reproducing method
FR858519290A FR2580413B1 (en) 1984-12-29 1985-12-27 OPTICAL INFORMATION RECORDING-REPRODUCING APPARATUS

Publications (2)

Publication Number Publication Date
FR2646546A1 FR2646546A1 (en) 1990-11-02
FR2646546B1 true FR2646546B1 (en) 1993-10-15

Family

ID=27515457

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9007160A Expired - Fee Related FR2646546B1 (en) 1984-12-29 1990-06-08 METHOD FOR OPTICALLY RECORDING AND / OR REPRODUCING INFORMATION ON A CARD-LIKE MEDIUM

Country Status (1)

Country Link
FR (1) FR2646546B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498657A3 (en) * 1991-02-08 1993-03-03 Canon Kabushiki Kaisha Optical recording medium, method of reproducing recorded data of optical recording medium, and system for reproducing recorded data of optical recording medium
JP2954404B2 (en) * 1991-10-09 1999-09-27 株式会社日本コンラックス Optical information recording / reproducing device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0675334B2 (en) * 1981-05-01 1994-09-21 株式会社東芝 Optical disk device
JPS59127266A (en) * 1983-01-07 1984-07-23 Canon Inc Information reproducing device
DE3484902D1 (en) * 1983-10-12 1991-09-12 Drexler Tech Quadruple density optical data system.

Also Published As

Publication number Publication date
FR2646546A1 (en) 1990-11-02

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Legal Events

Date Code Title Description
ST Notification of lapse