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. 06, 2014
Filed:
Feb. 28, 2012
Jie Yu, Irvine, CA (US);
Guoxiao Guo, Irvine, CA (US);
Jianguo Zhou, Foothill Ranch, CA (US);
Sanghoon Chu, San Jose, CA (US);
Young-hoon Kim, Cupertino, CA (US);
Abhishek Dhanda, San Jose, CA (US);
Jie Yu, Irvine, CA (US);
Guoxiao Guo, Irvine, CA (US);
Jianguo Zhou, Foothill Ranch, CA (US);
Sanghoon Chu, San Jose, CA (US);
Young-Hoon Kim, Cupertino, CA (US);
Abhishek Dhanda, San Jose, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a disk having a plurality of servo tracks defined by servo sectors, and a head actuated over the disk. The disk drive further comprises control circuitry comprising a servo control system operable to position the head over the disk. A disturbance is induced in the servo control system, and while positioning the head over the disk, a data track is accessed. The disturbance induced in the servo control system causes the data track to be non-circular relative to a rotation axis of the disk such that the non-circular data track crosses multiple of the servo tracks over a revolution of the disk.