Patent ID: 6298118
Filing Date: 2001-10-02
Classification: H04B,H04M

Abstract:
A communication line tester for testing a communication line comprising:a transmitter electrically coupled to the communication line;an analog-to-digital converter electrically coupled to the communication line;a main processor electrically coupled to the analog-to-digital converter, the main processor comprising:a pseudo-random code processor configured to generate pseudo-random coded signals for transmission by the transmitter on to the communication line and to decode pseudo-random coded signals received by the main processor from the analog-to-digital converter; anda multiple waveform based distortion removal processor configured to remove distortion produced by imperfect operation of tester components coupled to the communication line from signals based on a plurality of signals received from the analog-to-digital converter, the distortion removal based on a plurality of coded signals generated by the pseudo-random code processor.