Patent ID: 7031101
Filing Date: 2006-04-18
Classification: G11B

Abstract:
1. A method of controlling seeking of a transducer that is adjacent to a rotatable disk in a disk drive, the method comprising: seeking the transducer from an initial track to a target track on the disk based on a current command; estimating at least one transducer state relative to the disk while seeking; measuring at least one transducer state relative to the disk while seeking; determining an acceleration-phase state error that is indicative of an error between the estimated at least one transducer state and the measured at least one transducer state as the transducer is accelerated toward the target track during the seeking; and generating the current command based on the acceleration-phase state error, wherein determining an acceleration-phase state error comprises substantially determining the acceleration-phase state error while the transducer is accelerating at least a threshold amount toward the target track during the seeking.