Radio transmitter/receiver for digital and analog communications

Details Radio transmitter/receiver for digital and analog communications Radio transmitter/receiver for digital and analog communications

1980-09-26

1982-10-19

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 21, 375 8, 455 26, 455 78, H04M 170

Patent

active

043554016

ABSTRACT:
According to the present invention, a radio apparatus has a section for receiving an analog signal and a digital angle-modulated carrier wave signal. The analog signal and digital angle-modulated carrier wave output of the receiver section are demodulated to provide first and second demodulated signals. A clock signal is regenerated from the output of either the demodulating means or receiver section. A control signal selectively operates a switch for passing either the first or the second demodulated signals. The regenerated clock signal controls the switch.

REFERENCES:
patent: 3939431 (1976-02-01), Cohlman
patent: 4167700 (1979-09-01), Coe et al.
Recommendations and Reports of the CCIR, 1978, International Telecommunication Union, pp. 242-243.

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