Patents by Inventor Tanaat Wut Chayarangkan

Tanaat Wut Chayarangkan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Disk drive compensating for repeatable run out selectively per zone
    Patent number: 8953271
    Abstract: A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo tracks, wherein each servo track comprises a plurality of servo sectors. A plurality of zones are defined, wherein each zone comprises a plurality of the servo tracks. A metric is generated for each zone, and when the metric for a first zone exceeds a first threshold, feedback compensation values for at least two servo tracks are generated, wherein the feedback compensation values compensate for a written-in error of the servo sectors of each servo track. When the metric for a second zone does not exceed the first threshold, generating feedback compensation values for the second zone is skipped.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: February 10, 2015
    Assignee: Western Digital Technologies, Inc.
    Inventors: Tanaat Wut Chayarangkan, Julasak Kungsadankosit, Thitinun Jittramatr, Siam Samuhatananon, Chin Yang Choong, Wei Kiat Chen, Eugene Chun-Tsing Wu