Patent ID: 11915731
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The data storage device of claim 1, wherein detecting the frequency response of the actuator mechanism in response to the multi-rate excitation comprises:
detecting a frequency response of a primary actuator; and
detecting a frequency response of at least one fine actuator, and
wherein calibrating the at least one multi-rate notch filter of the actuator mechanism control system, based at least in part on the detected frequency response of the actuator mechanism, comprises:
calibrating the at least one primary actuator multi-rate notch filter of the actuator mechanism control system based at least in part on the detected frequency response of the primary actuator; and
calibrating the at least one fine actuator multi-rate notch filter based at least in part on the detected frequency response of the at least one fine actuator.