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:
Dec. 24, 2013
Filed:
Aug. 29, 2012
Applicants:
Kiyotada Ito, Hiratsuka, JP;
Takahiro Inoue, Chigasaki, JP;
Foo Leng Leong, Singapore, SG;
Inventors:
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/16 (2006.01); G05B 11/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
In some implementations, a method includes receiving rotational speed information corresponding to a rotational speed of a spindle motor having a plurality of poles, down sampling the rotational speed information to obtain speed-related information associated with the spindle motor, and adjusting the rotational speed of the spindle motor based on the speed-related information.