Method and device for adjusting a control parameter of a...

Details Method and device for adjusting a control parameter of a... Method and device for adjusting a control parameter of a...

2007-11-20

2007-11-20

Korzuch, William (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044320

Reexamination Certificate

active

10990669

ABSTRACT:
A method and a device for adjusting control parameters of a servo system of an optical disk drive. A first sinusoidal signal is introduced into a control loop of the servo system, while a band-pass filter is used to extract a second sinusoidal signal. Gain and/or phase variations of the control loop are derived by comparing signal parameters of both the first and second sinusoidal signals. A compensator is then employed to adjust the derived gain and/or phase variations of the control loop so as to overcome the disadvantage of system instability after a long-term working.

REFERENCES:
patent: 5146443 (1992-09-01), Iwase et al.
patent: 5367513 (1994-11-01), Bates et al.
patent: 6157601 (2000-12-01), Kao et al.
patent: 6560173 (2003-05-01), Shimamura et al.
patent: 6611123 (2003-08-01), Ono
patent: 6906986 (2005-06-01), Lee et al.
patent: 2002/0009026 (2002-01-01), Shimamura et al.
patent: 2003/0053387 (2003-03-01), Lee et al.
patent: 2003/0147315 (2003-08-01), Iwazawa et al.

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