Preformatted optical media for use in an optical memory system

Details Preformatted optical media for use in an optical memory system Preformatted optical media for use in an optical memory system

1981-10-15

1983-08-30

Fears, Terrell W.

Static information storage and retrieval

Information masking

Transparency

369 46, G11C 1304

Patent

active

044020619

ABSTRACT:
A preformatted optical recording disk for use in an optical data storage system in which a laser beam of predetermined frequency is focused on the disk. The disk comprises a substrate having reflective, dielectric and absorbing layers deposited in a manner so as to establish an anti-reflection condition for an incident laser beam. The disk is preformatted by recording optical holes in the absorbing layer so as to form one or more tracks wherein each track includes a plurality of headers positioned at predetermined locations along the track. Each header comprises a plurality of optical holes constructed and arranged so as to constitute predetermined embedded timing, track following and focusing data on the disk for use by an optical data storage system.

REFERENCES:
patent: 3795902 (1974-03-01), Russell

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