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. 09, 2002
Filed:
Apr. 07, 2000
Klaus Dietmayer, Ulm, DE;
Koninklijke Philips Electronics N.V., New York, NY (US);
Abstract
Offset compensation of two orthogonal sensor signals, which are supplied by two sensors and are preferably designed for angle measurements, occurs in dependence on the geometric arrangement of three pairs of test values of the sensor signals in a system of coordinates, the center of a circle on which the three pairs of test values are situated in the system of coordinates having center coordinates &Dgr;x and &Dgr;y relative to the origin of the system of coordinates, correction means are provided which perform a sign determination of the values &Dgr;x and &Dgr;y of the center coordinates of the circle in a repetitive cycle in each measuring cycle, while in each measuring cycle at least one of the pairs of test values differs from the pair of test values used in the preceding measuring cycle, and which means generate correction signals with which the sensor signals are complemented.