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:
Jan. 21, 2014
Filed:
Aug. 08, 2011
Brian P. Rigney, Louisville, CO (US);
Edgar D. Sheh, San Jose, CA (US);
Charles A. Park, Aromas, CA (US);
Scott A. Ottele, Longmont, CO (US);
Siri S. Weerasooriya, Campbell, CA (US);
Brian P. Rigney, Louisville, CO (US);
Edgar D. Sheh, San Jose, CA (US);
Charles A. Park, Aromas, CA (US);
Scott A. Ottele, Longmont, CO (US);
Siri S. Weerasooriya, Campbell, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a head actuated over a disk, wherein a bootstrap spiral track is written on the disk. While servoing on the bootstrap spiral track at least one circular reference track is written on the disk. A velocity profile is adjusted in response to the circular reference track, and a plurality of spiral tracks are written to the disk in response to the velocity profile.