Method and system for compensating a head positioning servo in a storage device

摘要

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.