Digital data optical recording and playback system

Details Digital data optical recording and playback system Digital data optical recording and playback system

1992-02-10

1994-03-08

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

235487, 235436, G06K 710, G06K 1900

Patent

active

052930327

ABSTRACT:
A digital data recording and playback system which includes an optical recording and playback head for recording and reproducing digital data onto and from a stationary optical storage card. The head contains a multiplicity of miniature laser cells mounted in rows and columns and directed to a surface of the stationary optical storage card. The head may be operated in any one of three modes, namely a record mode in which data is recorded on the card; a playback mode in which data recorded on the card is reproduced; and an erase mode in which data recorded on the card is completely or partially erased.

REFERENCES:
patent: 4701674 (1987-10-01), Oono et al.
patent: 4730293 (1988-03-01), Pierce et al.
patent: 4764931 (1988-08-01), Matsuda
patent: 4852075 (1989-07-01), Feyrer et al.
patent: 4901325 (1990-02-01), Kato et al.
patent: 5128919 (1992-07-01), Narahara et al.

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