A head position control method controls the position of a head by correcting components synchronizing rotation of a disk based on the head control amount. A correction signal for components synchronizing rotation is generated by using a filter function. The filter function that integrates the sine and...http://www.google.com/patents/US7869156?utm_source=gb-gplus-sharePatent US7869156 - Method of creating correction table for head position control, head position control method, and disk device