Optical recording disc

Details Optical recording disc Optical recording disc

1987-08-10

1990-02-20

Stephan, Steven L.

Dynamic information storage or retrieval

Storage medium structure

Layered

283 81, 369272, 369286, G11B 726

Patent

active

049032550

ABSTRACT:
An optical recording disc, such as a compact disc, having a non-playback side including a write-in region available for adding a message or an illustration so that it can be provided with such one and only design as each individual consumer may desire and it is suitable for a gift.

REFERENCES:
patent: 2010867 (1935-08-01), Kubo
patent: 2200866 (1940-04-01), Thompson
patent: 2353369 (1944-07-01), Sears
patent: 3245691 (1966-04-01), Gorman
patent: 3642284 (1987-11-01), Russell
patent: 3970803 (1976-07-01), Kinzie et al.
patent: 4752554 (1988-06-01), Sato et al.
Movement of Electronic History--"Digital Audio Disc in Which Optical System is a Main Factor", Nikkei Electronics, 1981, 8.17, pp. 187-206.

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