Patent ID: 6160676
Filing Date: 2000-12-12
Classification: G11B

Abstract:
A storage disk apparatus comprising:a plurality of heads for at least reading information recorded on storage disks having servo information:a plurality of first actuators for accurately positioning said heads with respect to said storage disks, said heads being supported on said first actuators;a second actuator for coarsely positioning said heads with respect to said storage disks, said first actuators being supported on said second actuator; andcontrol means for controlling said first actuators and said second actuator according to servo information read by one of said heads;wherein said control means drive one of said first actuators to position said one of said heads with a first drive current value depending on said servo information read by said one of said heads, and drive at least one of the other said first actuators to position at least one of the other said heads with a second drive current value depending on said servo information read by said one of said heads.