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

Claim 13:
14. A method comprising:
outputting, by one or more processing devices, a multi-rate excitation to at least one multi-rate notch filter of an actuator mechanism control system, the at least one multi-rate notch filter comprising at least one primary actuator multi-rate notch filter and at least one fine actuator multi-rate notch filter, wherein the comprises an actuator mechanism that is configured to position one or more heads proximate to one or more disk surfaces of a data storage device;
detecting, by the one or more processing devices, a frequency response of the actuator mechanism in response to the multi-rate excitation; and
calibrating, by the one or more processing devices, 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.