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:
Jul. 20, 2010
Filed:
Dec. 11, 2006
Applicant:
Ching-yu Lo, Taipei, TW;
Inventor:
Ching-Yu Lo, Taipei, TW;
Assignee:
Tyan Computer Corp., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 13/00 (2006.01); G05B 15/00 (2006.01); H02P 7/08 (2006.01); H02P 5/46 (2006.01); G01P 1/10 (2006.01); H01H 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A complex signal processing system for multiple fans is used to control the rotation of a first fan and a second fan. The speed signals of the first fan and the second fan are processed through an XOR operation to obtain a complex speed signal. In response to the complex speed signal, the speed and the operational status of the first fan and the second fan can be evaluated.