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:
May. 29, 2012
Filed:
May. 21, 2010
Min Chen, San Leandro, CA (US);
Qixing Zheng, Albany, CA (US);
Min Chen, San Leandro, CA (US);
Qixing Zheng, Albany, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo sectors that define a plurality of servo tracks. The servo sectors comprise a plurality of servo bursts including a first servo burst, a second servo burst following the first servo burst and offset radially by approximately one half of a servo track from the first servo burst, a third servo burst following the second servo burst and offset radially by approximately one full servo track from the second servo burst, and a fourth servo burst following the third servo burst and offset radially by approximately one half of a servo track from the third servo burst. A PES is generated form the servo bursts that is substantially insensitive to a radial velocity of the head.