Optical disk apparatus and track access method therefor

Details Optical disk apparatus and track access method therefor Optical disk apparatus and track access method therefor

1984-12-17

1986-09-09

Stephan, Steven L.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

360 78, 369 41, G11B 509, G11B 1700

Patent

active

046113150

ABSTRACT:
There is disclosed an optical disk apparatus provided with an optical pickup for recording or reproducing information by irradiating an optical disk with a light beam, a tracking device for causing the light beam to exactly follow a track formed on the optical disk, a driving mechanism for moving the optical pickup in the radial direction of the disk for track access, a circuit for outputting a signal representing the rotational position of the disk at the start and end of the track access, and regulating device for starting or terminating the track tracing operation of the tracking device in synchronization with a signal from the signal output circuit, and is also disclosed a track access method for enabling high-speed, precise track access without the influence of track eccentricity.

REFERENCES:
patent: 4310861 (1982-01-01), Kashio
patent: 4480279 (1984-10-01), Hashimoto
patent: 4481613 (1984-11-01), Yokota

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