Data processing: measuring – calibrating – or testing – Testing system – Of sensing device
Reexamination Certificate
2007-06-05
2007-06-05
West, Jeffrey R (Department: 2857)
Data processing: measuring, calibrating, or testing
Testing system
Of sensing device
C702S094000, C702S104000, C702S107000, C702S150000, C701S034000
Reexamination Certificate
active
10299293
ABSTRACT:
Methods and apparatus are provided which generate an error signal if a sensor is either anticipated to fail or fails. At least two sensors provide input signals having magnitudes that approximately correspond to a sensed event. A processor calculates an actual correlation error for the two signals. A processor then further calculates an estimated new correlation value based on the difference of a stored initial correlation value and the actual correlation error. After a predetermined number of estimated correlation values are calculated, the error signal is generated if the difference between an estimated correlation value and the actual correlation error exceeds a predetermined threshold.
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Christopher DeVries
General Motors Corporation
West Jeffrey R
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