The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 2021
Filed:
Jun. 05, 2020
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Guoxiao Guo, Irvine, CA (US);
Edgar D. Sheh, Cupertino, CA (US);
Kei Yasuna, Kanagawa, JP;
Due H. Banh, San Jose, CA (US);
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/54 (2006.01); G11B 5/58 (2006.01); G11B 5/596 (2006.01); G11B 20/12 (2006.01);
U.S. Cl.
CPC ...
G11B 5/59688 (2013.01); G11B 20/1258 (2013.01);
Abstract
A data storage device is disclosed comprising a head actuated over a disk. The head is used to read servo information from the disk and generate a position error signal (PES) representing a position of the head over the disk. A control signal is generated based on the PES and a triangle-shape dither signal, and the head is positioned over the disk using the control signal.