Patent ID: 7139149
Filing Date: 2006-11-21
Classification: G11B

Abstract:
1. A method of adapting compensation for repeatable runout of sectors of a disk in a disk drive, the method comprising: compensating for repeatable runout of a plurality of sectors of the disk; tracking for at least some of the sectors of the disk a status of whether the compensation for repeatable runout has been adapted and forming corresponding records based on the statuses; and selectively adapting or not adapting the compensation for repeatable runout of the tracked sectors based on the records, wherein tracking a status of whether the compensation for repeatable runout has been adapted, comprises: initializing the records to a first logical value; setting individual ones of the records to a second logical value as the compensation for repeatable runout of the corresponding ones of the sectors is adapted; and resetting the records to the first logical value when the repeatable runout compensation has been adapted based on all of the sectors of the disk.