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. 13, 2004
Filed:
May. 06, 2002
Applicant:
Inventors:
Dawn M. Mason, Cedar Falls, IA (US);
David J. Easton, Cedar Falls, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 5/00 ;
U.S. Cl.
CPC ...
B62D 5/00 ;
Abstract
A system and method is provided for use in a control system, such as a steering control system, for validating quadrature signals. A system makes a determination of validity based on the timing of detected state changes in the quadrature signals. To accomplish this, the amount of time that elapses between successive transitions is compared to the amount of time that elapses in an adjacent time period. If the two time periods are close enough, the signals are considered valid.