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:
Oct. 14, 2003
Filed:
May. 02, 2001
Applicant:
Inventor:
Klaus Dietmayer, Ulm/Donau, DE;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/00 ; G01C 1/738 ;
U.S. Cl.
CPC ...
G01K 7/00 ; G01C 1/738 ;
Abstract
Angle measurement is accomplished through an angle sensor ( ) supplying two sensor signals which are phase-shifted by 90 degrees relative to each other and whose amplitudes are dependent on the temperature, determined by a temperature sensor ( ) and fed to a microprocessor ( ). The microprocessor ( ) computes amplitude values of the sensor signals expected in dependence upon the temperature value supplied by the temperature sensor ( ), compares these values with the actual amplitude values of the sensor signals, and generates an error signal when the deviation between the expected and actual amplitude values exceeds a predetermined limit value.