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:
Jul. 07, 2015
Filed:
Aug. 21, 2014
Applicant:
Western Digital (Fremont), Llc, Fremont, CA (US);
Inventors:
Paul Dylan Sherman, San Jose, CA (US);
Sergey Muchiyev, Mountian View, CA (US);
Assignee:
Western Digital (Fremont), LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01); G11B 5/09 (2006.01); G11B 15/46 (2006.01); G11B 5/596 (2006.01); G11B 19/28 (2006.01); G11B 19/04 (2006.01);
U.S. Cl.
CPC ...
G11B 5/59638 (2013.01); G11B 19/28 (2013.01); G11B 5/59661 (2013.01); G11B 19/04 (2013.01); G11B 5/59666 (2013.01);
Abstract
An apparatus is disclosed comprising control circuitry configured to measure a rotation speed of a disk over multiple revolutions of the disk to generate a measured range of rotation speeds, select a target rotation speed from the measured range of rotation speeds, and when the rotation speed of the disk substantially matches the target rotation speed, enable writing of servo data on the disk using a head.