High speed, low power consumption pickup head position control d

Details High speed, low power consumption pickup head position control d High speed, low power consumption pickup head position control d

1985-05-29

1989-02-07

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 44, G11B 1722, G11B 700

Patent

active

048036757

ABSTRACT:
A pickup head position control device in an optical type disc reproducing device controls a pickup head position for a search operation for selection of a music piece. In this device, a tracking servo-control is periodically switched on and off while an optical head is forcibly moved toward a target position by driving a feed motor, a tracking actuator is deviated in the moving direction of the optical head by supplying a kick pulse to the tracking actuator when the tracking servo is off, and reading of a disc address is effected to conduct a search of a target position when the tracking servo is on.

REFERENCES:
patent: 4138663 (1979-02-01), Lehureau et al.
patent: 4397009 (1983-08-01), Eriksson
patent: 4403259 (1983-09-01), Masaki
patent: 4428074 (1984-01-01), Abe et al.
patent: 4432082 (1984-02-01), Hsieh et al.
patent: 4539664 (1985-09-01), Deguchi et al.
patent: 4550393 (1985-10-01), Sugiyama et al.
patent: 4630250 (1986-12-01), Nonomura

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