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:
Feb. 28, 2017
Filed:
Dec. 17, 2014
Applicant:
Western Digital Technologies, Inc., Irvine, CA (US);
Inventor:
Lance Flake, Longmont, CO (US);
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 11/28 (2006.01); G05B 11/01 (2006.01);
U.S. Cl.
CPC ...
G05B 11/011 (2013.01);
Abstract
An apparatus includes: a media; a head over the media; a head actuation motor (HAM) coupled to the head; control circuitry, coupled to the head actuation motor, including: a system-on-chip (SOC) configured to manage a control of the head actuation motor, a pulse width modulation (PWM) code bus, coupled to the SOC, configured to communicate the control of the HAM, and a power integrated circuit (PIC), coupled to the PWM code bus, configured to drive a HAM control signal.