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:
Oct. 25, 2022
Filed:
Aug. 06, 2021
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Manoj Keshavan, San Jose, CA (US);
Yanning Liu, San Jose, CA (US);
Hitoshi Shindo, San Jose, CA (US);
Siddhesh V. Sakhalkar, Berkeley, CA (US);
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/48 (2006.01); G11B 21/10 (2006.01);
U.S. Cl.
CPC ...
G11B 21/106 (2013.01);
Abstract
Control circuitry is disclosed configured to control inner fine actuators of a first plurality of inner actuator arms and independently control a first outer fine actuator of a first outer actuator arm. Inner fine actuators of a second plurality of inner actuator arms are controlled while independently controlling a second outer fine actuator of a second outer actuator arm. Each actuator arm comprises at least one head configured to access a disk surface of a disk.