Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2005-05-03
2005-05-03
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207210, C324S207250, C324S166000
Reexamination Certificate
active
06888345
ABSTRACT:
The method for correction of evaluation of a switching threshold of a magnetic sensor arrangement includes evaluating switching edges of a transmitter signal produced by a moving transmitter element and generating a signal output when the switching edges exceed or fall below a default threshold value. Individual threshold values are determined for each switching edge during the course of a measurement cycle to correct the default threshold value. This occurs by determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge. Then the average values are stored in a non-volatile memory as individual threshold values for subsequent correction.
REFERENCES:
patent: 20020109501 (2002-08-01), Schroeder
patent: 20040100251 (2004-05-01), Lohberg
patent: 197 50 304 (1999-05-01), None
Rettig Rasmus
Walter Klaus
LeDynh Bot
Striker Michael J.
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