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:
Sep. 06, 2016
Filed:
Sep. 14, 2015
Applicant:
Western Digital Technologies, Inc., Irvine, CA (US);
Inventors:
Thao Hieu Banh, Lake Forest, CA (US);
Tom Sai-Cheung Chan, San Marino, CA (US);
Chun Sei Tsai, Tustin, CA (US);
Assignee:
Western Digital Technologies, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 27/36 (2006.01); G11B 20/12 (2006.01); H02P 25/02 (2016.01); G11B 5/596 (2006.01); G11B 15/18 (2006.01);
U.S. Cl.
CPC ...
G11B 20/1217 (2013.01); G11B 5/59627 (2013.01); H02P 25/028 (2013.01); G11B 2020/1229 (2013.01); G11B 2020/1232 (2013.01); G11B 2020/1238 (2013.01);
Abstract
A data storage device is disclosed comprising a disk comprising a plurality of data tracks each comprising a plurality of data sectors, and a head actuated over the disk. A first frequency preamble is written to a first data sector of a first data track and a second frequency preamble is written to a second data sector of a second data track, wherein the first frequency is different from the second frequency and the first data track is adjacent to the second data track.