Patent ID: 7019939
Filing Date: 2006-03-28
Classification: G11B

Abstract:
1. A disk drive comprising: a disk having a recording surface on which a plurality of concentric tracks are arranged at a fixed pitch; a head arranged in association with the recording surface of the disk and used to read and write data from and to the disk; means for calculating a first offset value on the basis of the position of a first target track specified by a command from a host, the first offset value reflecting a track pitch which enables adverse effects of crosstalk to be suppressed, the first offset value indicating an offset of a target position at which the head is to be actually positioned from a predetermined position on the first target track in a radial direction of the disk; means for determining a second target track, to which the target position belongs, and a second offset value on the basis of the position of the first target track and the first offset value calculated by the calculating means, the second offset value indicating an offset of the target position from a predetermined position on the second target track in the radial direction of the disk; and means for executing control to position the head at the target position on the second target track on the basis of the second target track position and second offset value each determined by the determining means.