Patent ID: 7894156

Claim:
In a disk drive that has a recording medium configured with a plurality of servo wedges, a method for generating a servo control signal for a transducer head of the disk drive after the transducer passes over a current servo wedge but before the transducer head passes over the next servo wedge, comprising the steps of: computing an interim result using one or more position error signals associated with at least one servo wedge other than the current servo wedge; measuring a position error signal associated with the current servo wedge; determining a correction factor for the position error signal associated with the current servo wedge based on the interim result and said position error signal associated with the current servo wedge; and applying the correction factor to the position error signal associated with the current servo wedge; and generating the servo control signal for the current servo wedge after the correction factor is applied to the position error signal associated with the current servo wedge.