Optical disk drive with adaptive compensator

Details Optical disk drive with adaptive compensator Optical disk drive with adaptive compensator

2006-02-21

2006-02-21

Edun, Muhammad (Department: 2656)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044290, C369S044320, C369S044250

Reexamination Certificate

active

07002880

ABSTRACT:
An optical disk drive for accessing data stored on a compact disc has a housing, a sled sliding inside the housing, a driving device for driving the sled, an actuator installed on the sled, a servo device for providing a push force to drive the actuator, a control circuitry for controlling operations of the optical disk drive, an adaptive compensator, and an error signal generation circuit. The actuator can move within a predetermined range on the sled, wherein the predetermined range includes a linear region and a non-linear region. It is desirable to keep the actuator within the linear region of the predetermined range. For this, an adaptive compensator is used to provide a supplementary force to the sled when the actuator is near the non-linear region.

REFERENCES:
patent: 6341107 (2002-01-01), Watanabe
patent: 2003/0031097 (2003-02-01), Chan

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