Method and apparatus for repeatable run-out compensation

Details Method and apparatus for repeatable run-out compensation Method and apparatus for repeatable run-out compensation

2011-05-10

2011-05-10

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S075000

Reexamination Certificate

active

07940489

ABSTRACT:
A control system is configured to receive an input signal. The control system includes a control module to generate an output signal that tracks the input signal to the control system. The output signal includes a repeatable disturbance component. A compensation module is configured to receive an error signal. The error signal corresponds to a difference between the input signal and the output signal. The compensation module is configured to generate an estimate of the repeatable disturbance component based on the error signal, and to combine the estimate with the input signal to compensate for the repeatable disturbance component associated with the output signal.

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