Patent ID: 6144721
Filing Date: 2000-11-07
Classification: H04M

Abstract:
A telephone line pair analyzer for measuring an electrical characteristic of a telephone line pair having a first leg, a second leg and a ground, comprising:a first line connector;a second line connector;a ground line connector;a microcomputer having an electronic memory;a waveform generator for generating a first source waveform having at least two frequencies and a second source waveform having at least one frequency equal to at least one frequency of said first source waveform electrically connected to said first and said second line connectors and to said ground line connector, said first source waveform being transmitted over said first line connector and said second source waveform being transmitted over said second line connector, each of said first and said second source waveforms propagating a first reflected waveform and a second reflected waveform over said first and said second line connector terminals;a meter for processing and converting the first and the second reflected waveforms into a digital form stored in the electronic memory electrically connected to said first and said second connector terminals to receive said first and said second reflected waveforms;a program executed on said microcomputer, said program having a frequency domain analysis algorithm tunable to the frequencies of said first and said second reflected waveforms to obtain the impedance and phase characteristics of the line pair; anda first and a second power supply terminal electrically connected to said waveform generator, said microcomputer and said meter for connection to a power supply.