| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for reducing power consumption at the time of seeking without slowing an access time to a specified sector when a request for accessing to the specified sector is generated, in the moving speed control of a magnetic head of the magnetic disk device. SOLUTION: When a magnetic head is moved to a target sector, the present position of the magnetic head 1 is obtained from the information on the head position of the magnetic head 1 from a head position detecting part 4. A time firstly accessible to the target sector is calculated beforehand from the physical position information on the target sector and the present position information on the head 1, as well as head structure driving capability of the disk device. The moving speed of the head and the acceleration-deceleration pattern are decided so that the seek operation to the track, where the target sector exists, is completed spending that time, and the motion of the head structure driving part 3 is controlled.
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