Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2007-11-27
2009-12-08
Rogers, David A. (Department: 2856)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S057000, C702S059000
Reexamination Certificate
active
07630840
ABSTRACT:
An oxygen sensor readiness module comprises a voltage source, a current detection module, and a control module. The voltage source selectively produces a bias signal, which is applied to a sensing element of an oxygen sensor. The current detection module measures a pumping current of the oxygen sensor. The control module generates a readiness signal based upon a comparison of the pumping current with a pumping current threshold.
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Gibson Bradley
Sell Jeffrey A.
GM Global Technology Operations Inc.
Harness & Dickey & Pierce P.L.C.
Rogers David A.
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