Electricity: motive power systems – Positional servo systems – Adaptive or optimizing systems including 'bang-bang' servos
Patent
1999-08-20
2000-11-14
Martin, David
Electricity: motive power systems
Positional servo systems
Adaptive or optimizing systems including 'bang-bang' servos
318560, 318632, G05B 1300
Patent
active
061474673
ABSTRACT:
A servo loop, including a dynamic compensator, for use in an optical disk player is provided. The optical disk player reproduces data over the optical disk. The pickup head reads data on a data track of the optical disk and generates a feedback signal. The dynamic compensator inputs a feedback signal and outputs a compensation signal after a predetermined transfer function operation over the feedback signal in order to adjust the dynamic response of the servo loop. The servo loop includes a switch, which is responsive to a signal indicative of high spinning rate of the optical disk for selectively outputting the compensation signal. The servo loop includes a device coupled to the switch for selectively transmitting the compensation signal into the servo loop.
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patent: 4494202 (1985-01-01), Yueh
patent: 5087866 (1992-02-01), Smith
patent: 5189620 (1993-02-01), Parsons et al.
patent: 5331296 (1994-07-01), Davis
patent: 5808978 (1998-09-01), Wang et al.
Chen Chih-Chen
Lee Shih-Chieh
Yu Wen-Hai
Asustek Computer Inc.
Leykin Rita
Martin David
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