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. 02, 2008
Filed:
Dec. 05, 2006
Applicants:
Kenneth J. Farkas, Brighton, MI (US);
Duo Deng, Canton, MI (US);
Inventors:
Kenneth J. Farkas, Brighton, MI (US);
Duo Deng, Canton, MI (US);
Assignee:
Continental Automotive Systems US, Inc., Auburn Hills, unknown;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
An encoder failure detector system and method for detecting failure of an encoder during time periods when a zero rotational speed is expected. For example, in one embodiment a test signal is applied during a period when a zero rotational speed is expected and a failure is indicated if no movement of a rotor is detected in response to the test signal.