Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2006-12-08
2009-06-02
Whittington, Kenneth J (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207250, C324S173000
Reexamination Certificate
active
07541802
ABSTRACT:
A method for evaluating a sensor signal provided by a magnetic field sensor which is arranged at a distance from an object which is rotatable about an axis of rotation. The method includes defining an encoding pattern with a sequence of symbols, the sensor signal being dependent on the encoding pattern and at least one transmission parameter; regenerating the symbols of the encoding pattern from a corrected sensor signal using a threshold value detector to obtain an output signal; generating a filtered signal from the output signal using a filter having a plurality of filter coefficients; superposing the sensor signal and the filtered signal to obtain the corrected sensor signal; and wherein the corrected sensor signal and the output signal are used to estimate the at least one transmission parameter, and the filter coefficients are derived from the estimated transmission parameter.
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patent: 2005/0040814 (2005-02-01), Vig et al.
patent: 2006/0071659 (2006-04-01), Tatschl et al.
patent: 2007/0114988 (2007-05-01), Rossmann et al.
patent: 69713862 (2004-07-01), None
Hainz Simon
Hammerschmidt Dirk
Werth Tobias
Dicke Billig & Czaja, PLLC
Infineon - Technologies AG
Whittington Kenneth J
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