Optically inscribable record carrier with prerecorded informatio

Details Optically inscribable record carrier with prerecorded informatio Optically inscribable record carrier with prerecorded informatio

1989-01-09

1992-02-18

Psitos, Aristotelis

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

G11B 07013

Patent

active

050900072

ABSTRACT:
An optical record carrier having an information track structure on a surface thereof, one or more of the tracks being pre-recorded with standard information pertaining to a particular class of information of common use to an undefined number of users. Portions of one or more tracks which are not so pre-recorded are covered with a layer of optically recordable material, for recording thereon of information of the aforesaid class which completes or updates the standard information in whole or in part.

REFERENCES:
patent: 3510658 (1970-05-01), Rabedean
patent: 3673412 (1972-06-01), Olson
patent: 3931457 (1976-01-01), Mes
patent: 4094010 (1978-06-01), Pepperl et al.
patent: 4094013 (1978-06-01), Hill et al.
patent: 4142209 (1979-02-01), Hedlund et al.
patent: 4209804 (1980-06-01), Dil
patent: 4230915 (1980-10-01), Dil et al.
patent: 4363116 (1982-12-01), Kleuters et al.
patent: 4930116 (1979-01-01), Dil
Kybett, "Video Tape Recorders", 1974, pp. 248-250.

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