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. 13, 2014
Filed:
Jun. 21, 2012
Steven C. Smith, San Jose, CA (US);
Charles A. Park, Aromas, CA (US);
Siri S. Weerasooriya, Campbell, CA (US);
Jenghung Chen, Cupertino, CA (US);
Guoxiao Guo, Irvine, CA (US);
Wei Guo, Fremont, CA (US);
Steven C. Smith, San Jose, CA (US);
Charles A. Park, Aromas, CA (US);
Siri S. Weerasooriya, Campbell, CA (US);
Jenghung Chen, Cupertino, CA (US);
Guoxiao Guo, Irvine, CA (US);
Wei Guo, Fremont, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a head actuated over a disk, the disk comprising a plurality of servo sectors defining a plurality of servo tracks, wherein the servo tracks form a plurality of servo zones. A servo data rate of servo sectors in a first servo zone is different than a servo data rate of servo sectors in a second servo zone. A boundary of a first servo zone overlaps with a boundary of a second servo zone over a transition zone. The servo sectors of the first servo zone are interleaved with the servo sectors of the second servo zone within the transition zone. At least one servo parameter is adjusted when the head is over the transition zone in order to transition between the first servo zone and the second servo zone.