Method and device for detecting an amount of actuator offset for

Details Method and device for detecting an amount of actuator offset for Method and device for detecting an amount of actuator offset for

1997-08-12

1999-06-29

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4432, 369 4435, G11B 7085

Patent

active

059177896

ABSTRACT:
A method which detects an actuator offset amount for an optical disk device is disclosed. The device reproduces signals by forming a spot of a light beam from an optical system on an optical disk and has an actuator for moving the spot in a radial direction of the optical disk. The method includes the steps of controlling a driving signal supplied to the actuator so as to keep the spot at a predetermined position on a moving path of the spot, detecting the driving signal which keeps the spot at the predetermined position, and storing the driving signal as the actuator offset amount. A device for carrying out the method is also disclosed.

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patent: 5189653 (1993-02-01), Yanagi
patent: 5197058 (1993-03-01), Bell, Jr. et al.
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patent: 5251194 (1993-10-01), Yoshimoto et al.
patent: 5301174 (1994-04-01), Matoba et al.
patent: 5333083 (1994-07-01), Nakano
patent: 5481517 (1996-01-01), Yoshimoto et al.

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