Method of detecting phase pulse signals from an AC distribution

Details Method of detecting phase pulse signals from an AC distribution Method of detecting phase pulse signals from an AC distribution

1986-06-13

1988-05-10

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

340310R, 340538, G08B 2300

Patent

active

047440937

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.

REFERENCES:
patent: 3838448 (1974-09-01), Garde et al.
patent: 3947769 (1976-03-01), Rousos et al.
patent: 4399547 (1983-08-01), Moore et al.
patent: 4463341 (1984-07-01), Iwasaki
patent: 4554532 (1985-11-01), Ise et al.
patent: 4608552 (1986-08-01), Boutonnat et al.

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