Method of detecting phase pulse signals from an AC distribution line
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United States of America Patent
Stats
-
May 10, 1988
Issued Date -
N/A
app pub date -
Jun 13, 1986
filing date -
Jan 10, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of detecting the levels of phase pulse signals involves the establishment of a pilot channel in addition to channels into which phase pulse signals are injected. Prior to the injection of the phase pulse signals, a transmitter injects a pilot signal into the pilot channel. A receiver sets a reception threshold level to a level somewhat lower than the peak level of the pilot signal, and a detection of the levels of the phase pulse signals is carried out by comparing the phase pulse signals with the reception threshold level established by the pilot signal so that ghost signals below the threshold level are eliminated.
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