Optical multi-channel digital disc storage system

Details Optical multi-channel digital disc storage system Optical multi-channel digital disc storage system

1976-05-13

1978-06-06

Konick, Bernard

Static information storage and retrieval

Read/write circuit

Optical

358128, 360 77, 365234, G11B 2110, G11B 700

Patent

active

040940101

ABSTRACT:
An optical storage system for the simultaneous or random storage of digital information in a plurality of channels, comprising a rotating storage disc which is scanned by a light beam. The digital information of each channel is stored in points along a spiral track comprising interruptions. A concentrical guide track is associated with each channel. The light beam being focussed onto both tracks of each channel for optical addressing. The light beams of all channels are controlled via deflection systems so that, during the interruptions, they are briefly directed onto the guide tracks while following the spiral tracks. From the radial deviation of the moving disc, measured by way of a detector system, control signals are derived by the deflection systems to compensate for undesired radial motions of the spiral-shaped tracks.

REFERENCES:
patent: 3573471 (1971-04-01), Kolb
patent: 3654624 (1972-04-01), Becker et al.
patent: 3720924 (1973-03-01), Aagard
patent: 3737877 (1973-06-01), Feinleib
patent: 3919697 (1975-11-01), Walker
patent: 3962688 (1976-06-01), Westerberg

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