Optical data recordation and reproduction system

Details Optical data recordation and reproduction system Optical data recordation and reproduction system

1982-03-04

1985-06-25

Faber, Alan

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 59, 369124, 375 87, G11B 700

Patent

active

045258228

ABSTRACT:
An optical data recordation and reproduction system comprising a first optical means modulates a light beam with digitized data and impacts this modulated light beam onto a photosensitive material, producing discontinuities in the photosensitive material corresponding to the data. A second optical means then directs a beam of unmodulated light onto this photosensitive material, and converts the resulting modulated light into an electric signal. An electric circuit then differentiates and samples the signal, producing the recorded digitized data via self-locking.

REFERENCES:
patent: 3983317 (1976-09-01), Glorioso
patent: 3988532 (1976-10-01), Korpel
patent: 4222072 (1980-09-01), Bailey
patent: 4281292 (1981-07-01), Caldarella
patent: 4353130 (1982-10-01), Carasso
patent: 4410877 (1983-10-01), Carasso
"An Experimental Approach to Digital Television Recording", by Jones et al., Int'l Broadcasting Convention, London, 9/23/74, pp. 114-118.

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