Method for adjusting a control parameter and optical disc...

Details Method for adjusting a control parameter and optical disc... Method for adjusting a control parameter and optical disc...

2007-12-25

2007-12-25

Korzuch, William (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044350, C369S044340

Reexamination Certificate

active

10892849

ABSTRACT:
A method for adjusting a control parameter is adopted in an optical disc drive server system, which has a compensator, a control loop and a parameter regulator. The control loop includes an optical pickup and outputs a first tracking error signal/focus error signal. The compensator adjusts the first tracking error signal/focus error signal to obtain a compensated signal for driving the optical pickup to read/write the optical disc. The parameter regulator generates a first sinusoidal signal to be inputted to the control loop, which amplifies the first sinusoidal signal to obtain a second sinusoidal signal. The parameter regulator filters the second sinusoidal signal and calculates a relationship between the first sinusoidal signal and the second sinusoidal signal to obtain a control parameter. The parameter regulator adjusts the compensator to output the compensated signal according to the control parameter.

REFERENCES:
patent: 5761164 (1998-06-01), Abe et al.
patent: 5910751 (1999-06-01), Winn et al.
patent: 6833766 (2004-12-01), Kim et al.
patent: 6999012 (2006-02-01), Kim et al.
patent: 2003/0011437 (2003-01-01), Ozawa
patent: 1221254 (1999-06-01), None

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