Tracking servo system for an information recording disc player

Details Tracking servo system for an information recording disc player Tracking servo system for an information recording disc player

1987-06-04

1989-03-28

McElheny, Jr., Donald

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

358907, 369 30, G11B 7095, G11B 2108

Patent

active

048170739

ABSTRACT:
A tracking servo system for use in an information recording disc player including an equalizing circuit for compensating a frequency characteristic of a tracking error signal generated at a pickup of the disc player. The equalizing characteristic of the equalizing circuit is changed for a predetermined time period after the servo loop is closed during a track jump operation of the disc player. By this feature the servo loop is locked in when a decelerating force is exerted on the actuator of the tracking servo system, thereby to increase the stability of the lock in of the tracking servo system.

REFERENCES:
patent: 4613963 (1986-09-01), Hirano
patent: 4677602 (1987-06-01), Okano et al.
patent: 4698795 (1987-10-01), Yoshio
patent: 4698796 (1987-10-01), Kimura

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