Method and apparatus for transmission line analysis
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United States of America Patent
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Aug 23, 2005
Grant Date -
Oct 31, 2002
app pub date -
Mar 16, 2001
filing date -
Mar 16, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method and system for performing sequence time domain reflectometry to determine the location of line anomalies in a communication channel is disclosed. In one embodiment, the system generates a sequence signal and transmits the sequence signal over a channel that is the subject of the sequence time domain reflectometry analysis. The system monitors for and receives one or more reflections, collectively a reflection signal, and presents the reflection signal to a reflection processing module. In one embodiment, the reflection signal is correlated with the original sequence signal to generate a correlated signal. The system may perform signal analysis on the correlated signal to determine a time value between the start of the reflection signal and the subsequent points of correlation. Based on the time value and the rate of propagation of the signals through the channel, the reflection processing module determines a distance to a line anomaly.
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