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:
Jun. 28, 2022
Filed:
Feb. 18, 2021
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/54 (2006.01); G11B 5/55 (2006.01); G11B 5/596 (2006.01); H03M 1/12 (2006.01); G11B 5/35 (2006.01);
U.S. Cl.
CPC ...
G11B 5/59666 (2013.01); G11B 5/35 (2013.01); G11B 5/5573 (2013.01); G11B 5/59622 (2013.01); H03M 1/12 (2013.01);
Abstract
A data storage device is disclosed comprising a voice coil motor (VCM) configured to actuate a head over a disk. The data storage device further comprises control circuitry comprising a digital current control loop including a windowed delta-sigma analog-to-digital converter (ADC) configured to control the VCM. A vibration of the data storage device is measured, and at least one of a gain or a window of the windowed delta-sigma ADC is configured based on the measured vibration.