Method and apparatus compensating disturbance in state...

Details Method and apparatus compensating disturbance in state... Method and apparatus compensating disturbance in state...

2006-06-26

2009-10-06

Sniezek, Andrew L (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077070

Reexamination Certificate

active

07599144

ABSTRACT:
A method and system are disclosed for compensating disturbance applied to a plant, such as a HDD component, controlled by a state control device having an estimator & controller. The estimator & controller is adapted to generate a first control signal in response to a state signal indicating an estimated state of the plant. A second control signal is generated by applying a transfer function H(s) having defined gain/frequency characteristics to a control signal derived from the first control signal. An overall control signal is generated in response to the second control signal and the control signal derived from the first control signal and applied to the plant.

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patent: 2006/0176605 (2006-08-01), Baek et al.
patent: 2007/0064334 (2007-03-01), Jia et al.
patent: 2002093084 (2002-03-01), None
patent: 2001-0113648 (2001-12-01), None
patent: 1020040097944 (2004-11-01), None

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