System and method for signal validation and leakage detection
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United States of America Patent
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-
Jul 1, 2008
Grant Date -
Jan 30, 2003
app pub date -
Jul 26, 2001
filing date -
Jul 26, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method of validating signals and detecting signal leakage in a cable communications includes the steps of a) tuning a radio frequency receiver to a carrier frequency of a selected RF channel, b) measuring a signal level of the carrier frequency, c) off-tuning the receiver by a predetermined offset, d) measuring a signal level of the off-tuned carrier frequency, e) obtaining a signal level difference between the signal level of the carrier frequency and the signal level of the off-tuned carrier frequency to determine if interference exists, f) declaring an interference condition if the signal level difference is less than a predetermined difference amount, and g) providing an indication of the signal level of the carrier frequency to permit a determination of whether a signal leakage condition exists.
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