Optical disk apparatus

Details Optical disk apparatus Optical disk apparatus

Filed on

1983-03-14

Date issued

1985-04-02

Examiner

Stephan, Steven L.

Patent Class

Dynamic information storage or retrieval

SubClass

Information location or remote operator actuated control

SubSubClass

Selective addressing of storage medium

Other Related Categories

369 41, G11B 1706

Type

Patent

Status

active

Patent number

045091544

Description

ABSTRACT:
An optical disk apparatus is provided in which a track pitch is computed in accordance with a track number currently corresponding to a recording/reproduction head and with a scale value detected by a position detection section when the difference between a scale value obtained by a scale translator and the scale value detected by the position detection section exceeds a predetermined number of tracks, thereby correcting a track pitch used in the scale translator using the computed track pitch.

REFERENCES:
patent: 4145724 (1979-03-01), Medding et al.
patent: 4301526 (1981-11-01), Morii et al.
patent: 4321635 (1982-03-01), Tsuyuguchi
patent: 4323997 (1982-04-01), Kuribayashi et al.
patent: 4361880 (1982-11-01), Kitamura et al.
patent: 4437181 (1984-03-01), Kishma

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