Digital signaling device

Details Digital signaling device Digital signaling device

1975-04-07

1977-02-22

Claffy, Kathleen H.

H04J 312

Patent

active

040093360

ABSTRACT:
A digital signaling device for use with a digital transmission network comprising signal generator means including carrier signal generation means to generate a synthetic digital request-to-send/carrier detect signal and command signal generator means to generate a plurality of digital command signals and signal control means to selectively control the transmission of the synthetic digital request-to-send/carrier detect signal and digital command signals, and signal recovery means including carrier signal recovery means to recover the synthetic digital request-to-send/carrier detect signal and command signal recovery means to recover any of the plurality of digital command signals and generate a control signal corresponding to the particular command signal recovered.

REFERENCES:
patent: 3694757 (1972-09-01), Hanna
patent: 3718767 (1973-02-01), Ellis
patent: 3789148 (1974-01-01), Ishii
patent: 3872257 (1975-03-01), Bleickardt et al.

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