For the offset calibration of a magnetoresistive angle sensor for the determination of the directions of magnetic fields, the sensor includes a Wheatstone bridge with at least four magnetoresistive resistors. The Wheatstone bridge receives an input signal at its input side, in particular an input voltage,...http://www.google.de/patents/US6304074?utm_source=gb-gplus-sharePatent US6304074 - Method for the offset calibration of a magnetoresistive angle sensor including at least one wheatstone bridge
