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:
Mar. 18, 2003
Filed:
Oct. 26, 1999
Klaus Dietmayer, Hamburg, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
In a device for measuring an angle &phgr; between a magnetic field and an MR sensor ( ) which supplies at least two electrical sensor signals x and y mutually 90° phase-shifted, which are supplied to an A/D converter ( ) whose output is connected to an angle calculating device ( ), the absolute sensor signal value |r| of the two sensor signals x and y is determined from the equation |r|={square root over (y +x )} in a total calculation device ( ) for the purpose of an automatic and continuous offset compensation of the static and dynamic offsets, and the change in the absolute sensor signal value is determined therefrom in dependence on the calculated angle, whereupon an offset control of the sensor signals x and y is carried out in dependence on said change in absolute value.