FR2668638B1 - Carte musicale a lecture optique. - Google Patents

Carte musicale a lecture optique.

Info

Publication number
FR2668638B1
FR2668638B1 FR9013757A FR9013757A FR2668638B1 FR 2668638 B1 FR2668638 B1 FR 2668638B1 FR 9013757 A FR9013757 A FR 9013757A FR 9013757 A FR9013757 A FR 9013757A FR 2668638 B1 FR2668638 B1 FR 2668638B1
Authority
FR
France
Prior art keywords
optical reading
music card
music
card
reading
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
FR9013757A
Other languages
English (en)
Other versions
FR2668638A1 (fr
Inventor
Bertaux Christophe
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.)
Individual
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
Priority to FR9013757A priority Critical patent/FR2668638B1/fr
Publication of FR2668638A1 publication Critical patent/FR2668638A1/fr
Application granted granted Critical
Publication of FR2668638B1 publication Critical patent/FR2668638B1/fr
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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/03—Containers for flat record carriers
    • G11B23/032—Containers for flat record carriers for rigid discs
    • G11B23/0323—Containers for flat record carriers for rigid discs for disc-packs
    • 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
    • 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
    • G11B7/24003—Shapes of record carriers other than disc shape
    • G11B7/24012—Optical cards
FR9013757A 1990-10-31 1990-10-31 Carte musicale a lecture optique. Expired - Lifetime FR2668638B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9013757A FR2668638B1 (fr) 1990-10-31 1990-10-31 Carte musicale a lecture optique.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9013757A FR2668638B1 (fr) 1990-10-31 1990-10-31 Carte musicale a lecture optique.

Publications (2)

Publication Number Publication Date
FR2668638A1 FR2668638A1 (fr) 1992-04-30
FR2668638B1 true FR2668638B1 (fr) 1992-12-18

Family

ID=9401907

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9013757A Expired - Lifetime FR2668638B1 (fr) 1990-10-31 1990-10-31 Carte musicale a lecture optique.

Country Status (1)

Country Link
FR (1) FR2668638B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU548984B2 (en) * 1981-05-22 1986-01-09 Staar Societe Anonyme Audio-visual cartridge
GB2102614A (en) * 1981-07-14 1983-02-02 John Cowan A card having a disc record
JPS61214290A (ja) * 1985-03-20 1986-09-24 Hitachi Maxell Ltd デイスクカ−トリツジ
JPH01296453A (ja) * 1988-05-25 1989-11-29 Matsushita Electric Ind Co Ltd 光ディスク装置

Also Published As

Publication number Publication date
FR2668638A1 (fr) 1992-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse