System for tele-locating regenerative repeaters

Details System for tele-locating regenerative repeaters System for tele-locating regenerative repeaters

1981-09-15

1984-01-10

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 10, 371 22, H04B 346

Patent

active

044256620

ABSTRACT:
A transmission path between two terminal stations for transmitting digital information signals at a predetermined rate in one direction via a forward path and in the other direction via a return path. The transmission path comprises regenerative repeaters. A system for tele-location of these repeaters comprises in one of the terminal stations a transmitter for transmitting tele-location commands to the repeaters via the forward path, carrier signals of the said rate being on-off modulated in this transmitter by an amplitude modulator in accordance with output signals of a command sequence generator, and further comprises in every repeater a loop circuit between forward and return paths having an associated control circuit which cooperates with a detector for detecting the presence of carrier signals in the return path and for receiving tele-location commands.

REFERENCES:
patent: 3739098 (1973-06-01), Camiciottoli et al.
patent: 3769454 (1973-10-01), Liberman et al.
patent: 4112263 (1978-09-01), Lender
patent: 4161635 (1979-07-01), Wolaver
patent: 4196321 (1980-04-01), Bosik
patent: 4242750 (1980-12-01), Finck et al.

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