Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2011-01-25
2011-01-25
Nguyen, Hoai-An D (Department: 2831)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C280S735000, C340S667000
Reexamination Certificate
active
07876106
ABSTRACT:
An occupancy detection system includes a signal generator coupled to an electrode, the signal generator configured to output a first signal at a first frequency and a second signal at a second frequency. The system further includes a voltage detection circuit connected to an output terminal of the signal generator and to an input terminal of the electrode, wherein the voltage detection circuit is configured to measure a first voltage responsive to the first signal at the first frequency and a second voltage responsive to the second signal at the second frequency. A control module in communication with the voltage detection circuit is configured to detect a state of occupancy based on the first voltage and the second voltage.
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Griffin Dennis P.
Hansen Mark C.
Jaraki Mohamed R.
Kincaid Kevin D.
Delphi Technologies Inc.
Nguyen Hoai-An D
Twomey Thomas N.
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