Optical disk and optical disk apparatus with pause mode protecti

Details Optical disk and optical disk apparatus with pause mode protecti Optical disk and optical disk apparatus with pause mode protecti

1987-07-02

1989-03-28

McElheny, Jr., Donald

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369111, 369116, G11B 700

Patent

active

048170682

ABSTRACT:
An optical disk and an apparatus for recording/reproducing on the disk. The disk has extra tracks that are used for tracing by the pickup when the apparatus is started or remains in a pause mode longer than a predetermined time. The intensity of the light emitted by the pickup can be reduced while scanning the extra tracks.

REFERENCES:
patent: 4094010 (1978-06-01), Pepperl et al.
patent: 4445188 (1984-04-01), Barrett
patent: 4458273 (1984-07-01), Johnson
patent: 4507767 (1985-03-01), Takasugi
patent: 4611248 (1986-09-01), Honjo et al.
patent: 4656079 (1987-04-01), Yamada et al.
patent: 4691252 (1987-09-01), Okada et al.
patent: 4717968 (1988-01-01), Painton et al.

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