Digital servo system with second order compensator

Details Digital servo system with second order compensator Digital servo system with second order compensator

2005-05-10

2005-05-10

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044320, C369S044340, C369S053120

Reexamination Certificate

active

06891781

ABSTRACT:
A tracking servo system with a at least one second order digital filter is presented. The servo system calculates an error signal and offsets, amplifies, and filters the error signal before a control signal is calculated. The control signal is then utilized to position an optical pick-up unit which provides signals from which the error signal is calculated. Filters in the servo system can include a low-pass integrator, a phase lead filter, notch filters, or other filters. At least one of the filters is a second order digital filter.

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