Patent ID: 11948603
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. The data storage device of claim 14, wherein incrementally reducing a PWM change time and measuring the corresponding track arrival PES comprises:
selecting a first pair of setting values;
selecting a second pair of setting values;
selecting an initial PWM change time for operating the first VCM in the PWM mode, wherein the PWM change time corresponds to a time at which the first VCM transitions from the first pair of setting values to the second pair of setting values for the PWM mode;
decreasing the PWM change time by an interval amount; and
measuring the corresponding track arrival PES after each decrease in the PWM change time to identify an optimal PWM change time corresponding to a minimal or no increase in the track arrival PES.