| 摘要 |
PROBLEM TO BE SOLVED: To enable moving quickly a head to the final target track center with respect to a disk device in which a head is continuously moved by a VCM (voice coil motor) and the like, because the transfer speed of the head moving by every seek command pulse is delayed when are track gives the seek command pulse corresponding to one pulse, and as a result, it takes time until it is on-tracked on the trackcenter of final target. SOLUTION: When a seek command pulse is given, a head is moved by one track, but when the next seek command pulse is given before a head reaches an adjacent track center, distance of one track is added to distance to an adjacent track center, and a head is accelerated with speed in accordance with this added distance. Thereby, a head can be moved quickly to the target track center.
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