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:
Apr. 21, 2015
Filed:
Jun. 20, 2014
Applicant:
Western Digital Technologies, Inc., Irvine, CA (US);
Inventor:
Alain Chahwan, Irvine, CA (US);
Assignee:
Western Digital Technologies, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01); G11B 5/58 (2006.01); G11B 5/012 (2006.01);
U.S. Cl.
CPC ...
G11B 5/58 (2013.01); G11B 5/012 (2013.01);
Abstract
An apparatus includes: a media; a head assembly over the media; a head actuation motor coupled to the head assembly; control circuitry, coupled to the head actuation motor, configured to position the head assembly; and a microphone, coupled to the control circuitry, configured to generate a signal in response to a vibration; and wherein: the control circuitry is further configured to: generate a compensation value based on the signal; and control the head actuator motor based on the compensation value.