Patent ID: 8063629

Claim:
A method for processing sensor signals, which are subject to an offset, of a sensor ( 6 ), which is operated in a plurality of measurement cycles with 2n (n =1, 2, . . . ) successive phases each with different driving, in which the sensor signals of the individual phases are amplified in an amplifier ( 9 ) and subsequently digitized using an analog/digital converter ( 10 ), and in which the amplified digitized signals of the individual phases of each measurement cycle are summed to obtain an offset-reduced output signal for each measurement cycle, the sensor signals being modulated before the amplification in a modulator ( 1 ) and demodulated again after the amplification in a demodulator ( 3 ), characterized in that, by the modulation, the sensor signals of n phases of each measurement cycle are weighted with negative mathematical sign and the sensor signals of the remaining n phases of the measurement cycle are weighted with positive mathematical sign, and before the amplification of the modulated sensor signals of each two phases which were weighted with different mathematical sign and have an offset of the same mathematical sign after the modulation, an offset averaged from the sensor signals of the two phases is subtracted.