DE2624380B1 - Plattenfoermiger informationstraeger - Google Patents

Plattenfoermiger informationstraeger

Info

Publication number
DE2624380B1
DE2624380B1 DE19762624380 DE2624380A DE2624380B1 DE 2624380 B1 DE2624380 B1 DE 2624380B1 DE 19762624380 DE19762624380 DE 19762624380 DE 2624380 A DE2624380 A DE 2624380A DE 2624380 B1 DE2624380 B1 DE 2624380B1
Authority
DE
Germany
Prior art keywords
greater thickness
centre
periphery
video signal
signal recording
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.)
Granted
Application number
DE19762624380
Other languages
German (de)
English (en)
Other versions
DE2624380C2 (enrdf_load_html_response
Inventor
Werner Ing Heuer
Heinrich Ing Reinmueller
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.)
Polygram GmbH
Original Assignee
Polygram GmbH
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 Polygram GmbH filed Critical Polygram GmbH
Priority to DE19762624380 priority Critical patent/DE2624380B1/de
Publication of DE2624380B1 publication Critical patent/DE2624380B1/de
Application granted granted Critical
Publication of DE2624380C2 publication Critical patent/DE2624380C2/de
Granted 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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • 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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
DE19762624380 1976-05-31 1976-05-31 Plattenfoermiger informationstraeger Granted DE2624380B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762624380 DE2624380B1 (de) 1976-05-31 1976-05-31 Plattenfoermiger informationstraeger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762624380 DE2624380B1 (de) 1976-05-31 1976-05-31 Plattenfoermiger informationstraeger

Publications (2)

Publication Number Publication Date
DE2624380B1 true DE2624380B1 (de) 1977-06-08
DE2624380C2 DE2624380C2 (enrdf_load_html_response) 1978-01-26

Family

ID=5979432

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762624380 Granted DE2624380B1 (de) 1976-05-31 1976-05-31 Plattenfoermiger informationstraeger

Country Status (1)

Country Link
DE (1) DE2624380B1 (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129225A1 (de) * 1983-06-20 1984-12-27 POLYGRAM GmbH Plattenförmiger, optisch auslesbarer Informationsträger mit Schutzrand
EP0105374A4 (en) * 1982-02-05 1985-07-01 Matsushita Electric Industrial Co Ltd Optical recording/reproduction disc.
FR2559608A1 (fr) * 1984-02-14 1985-08-16 Philips Nv Disque a memoire lisible par voie optique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105374A4 (en) * 1982-02-05 1985-07-01 Matsushita Electric Industrial Co Ltd Optical recording/reproduction disc.
EP0129225A1 (de) * 1983-06-20 1984-12-27 POLYGRAM GmbH Plattenförmiger, optisch auslesbarer Informationsträger mit Schutzrand
FR2559608A1 (fr) * 1984-02-14 1985-08-16 Philips Nv Disque a memoire lisible par voie optique

Also Published As

Publication number Publication date
DE2624380C2 (enrdf_load_html_response) 1978-01-26

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Free format text: HEUER, WERNER ING.(GRAD.), 3160 LEHRTE, DE REINMUELLER, HEINRICH ING.(GRAD.), 3000 HANNOVER, DE

8339 Ceased/non-payment of the annual fee