Method and system for compensating a head positioning servo in a storage device
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United States of America Patent
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Mar 4, 2003
Grant Date -
N/A
app pub date -
Oct 25, 1999
filing date -
Oct 26, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and system for compensating head positioning servo in a storage device. In accordance with the method and apparatus of the present invention, an open-loop gain of a head positioning servo is calculated when the head positioning servo causes a head to follow a predetermined position of a target track of a storage media surface by generating a position detecting signal utilizing a position detecting signal gain. A compensated position detecting signal gain is generated by compensating the position detecting signal gain according to a difference between a first predetermined value and the open-loop gain of the head positioning servo, such that variability of the position detecting signal and the open-loop gain is reduced to achieve stability in a head positioning servo.
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