Position control method

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system

Reexamination Certificate

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Details

C369S053180, C369S044290

Reexamination Certificate

active

07116611

ABSTRACT:
The present invention provides a control system of following a follow target position. A control system has a disturbance observer for obtaining a disturbance force estimation value and a speed estimation value as estimation values of a disturbance force and a speed as a speed to be controlled by using an actuator control signal cont and a zero follow position which can be observed. Since the disturbance force estimation value and speed estimation value are fed back.

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patent: 5633846 (1997-05-01), Okuyama et al.
patent: 6243226 (2001-06-01), Jeong
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patent: 09-320075 (1997-12-01), None
patent: 11-250478 (1999-09-01), None
patent: 2000-263873 (2000-09-01), None
patent: 2000-268373 (2000-09-01), None
patent: 2001-210032A (2001-08-01), None

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