Patent ID: 11875821
Assignee: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A method of controlling a disk device including a disk, an actuator assembly, a head mounted on the actuator assembly, a first actuator configured to move the actuator assembly, a second actuator configured to move the head, and a vibration sensor, the method comprising:
performing a first filtering to generate a first filter value based on a vibration detected by the vibration sensor at multiple points in time and filter coefficients;
determining a first operation amount of the first actuator based on a difference between a current position of the head and a target position of the head;
correcting the first operation amount using the first filter value;
determining a second operation amount of the second actuator based on the difference;
performing a second filtering to generate a second filter value based on the vibration detected by the vibration sensor at each of the multiple points in time;
determining a difference between the target position and an updated position of the head, which has been positioned by operating the first actuator by the corrected first operation amount and operating the second actuator by the second operation amount; and
updating the filter coefficients based on the second filter values and the determined difference.