Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2006-09-05
2006-09-05
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C327S603000
Reexamination Certificate
active
07102366
ABSTRACT:
A proximity detection circuit. An oscillator circuit is adapted to provide charge to an antenna. An operational amplifier, operated as a unity gain follower, receives an antenna signal which is representative of an external capacitive load on the antenna. A detector circuit receives the antenna signal via the operational amplifier and outputs a detection signal in response to changes in the antenna signal. A comparator receives the detection signal and is adapted to generate an output signal in response thereto.
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Denen Dennis Joseph
Groezinger Charles W.
Knittle John J.
Myers Gary Edwin
Deb Anjan
Dole Timothy J.
Fulbright & Jaworski L.L.P
Georgia-Pacific Corporation
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