Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2007-04-24
2007-04-24
Nguyen, Vincent Q. (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C073S073000
Reexamination Certificate
active
10595085
ABSTRACT:
A device and method for detecting environmental change of automobile windshield includes a plane capacitor having two electrodes disposed on a common plane on the inner surface of the windshield, and with a total area of said two electrodes less than 100 sq. centimeters. A sensor detection circuit is responsive to the change of capacitance of the plane capacitor to produce a control signal to control equipment work.
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English Translation of International Preliminary Report on Patentability for PCT/CN2004/000682, mailed Apr. 27, 2006.
International Search Report, PCT/CN2004/00682.
Sun Tengchen
Yu Jie
Nguyen Vincent Q.
Wood Herron & Evans LLP
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