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:
Jan. 12, 2016
Filed:
Jun. 11, 2015
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventor:
Ju-Il Lee, Eden Prairie, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/596 (2006.01); G11B 5/55 (2006.01); G05B 13/04 (2006.01);
U.S. Cl.
CPC ...
G11B 5/5565 (2013.01); G11B 5/5547 (2013.01); G11B 5/5552 (2013.01); G05B 13/042 (2013.01);
Abstract
A first friction coefficient that is modeled as affecting a rotational velocity of a voice coil motor is modified. A second friction coefficient that is modeled as affecting a rotational acceleration of the voice coil motor is also modified. The first and second friction coefficients change in response to a change in ambient temperature. A control effort used to control the voice coil motor is changed based on the modified first and second friction coefficients.
Lee, Ju-Il. (2016). Servo control using a model of temperature-dependent friction (U.S. Patent No. 9236072). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9236072
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile