Patent ID: 11869546
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A data storage device, comprising:
a disk;
one or more read/write heads configured to read data from the disk and to write data to the disk;
a plurality of heaters disposed in each of the one or more read/write heads and configured to thermally adjust a spacing of the corresponding read/write head from a surface of the disk; and
a controller configured to:
control an amount of power applied to the plurality of heaters based on a point during touchdown at which a reader shield and a writer shield of a corresponding read/write head have maximum contact with the surface of the disk (DHRmax); and
determine a temperature adaptive adjustment that is used to adjust the amount of power applied to the plurality of heaters based on a temperature of the corresponding read/write head during operation of the data storage device.