Patent ID: 6545483
Filing Date: 2003-04-08
Classification: G01R,H04B

Abstract:
Apparatus for detecting signal waveforms on a pair of conductors, comprising:a first and second capacitive coupler, each connected to an associated termination impedance and each adapted for placement adjacent to a related one of the two conductors to capacitively couple first and second sample signals, respectively, of the signal waveforms from the related conductor to the associated termination impedance; a first and second buffer amplifier responsive, respectively, to the first and second sample signals at the termination impedances of the first and second capacitive couplers, for providing at a first and second output thereof, respectively, an amplified difference of the first and second sample signals; and a utility module including a battery source connected to the buffer amplifiers by a line for providing power to the buffer amplifiers at a location distant from the buffer amplifiers.