Carrier control system for suppressed carrier modulators

Details Carrier control system for suppressed carrier modulators Carrier control system for suppressed carrier modulators

1977-02-14

1980-06-10

Richardson, Robert L.

Telecommunications

Transmitter

Amplitude modulation

332 44, H04B 168

Patent

active

042075254

ABSTRACT:
A suppressed carrier radio signaling system is described in which there is a servo loop utilizing balanced circuit techniques and using the carrier as the reference, in which a phase detector (or coherent demodulator) constantly senses the phase difference between the carrier source and the carrier component in the output signal to derive an error signal which is used to vary the amount of the carrier component toward zero.

REFERENCES:
patent: 2833992 (1958-05-01), McKay
patent: 3136950 (1964-06-01), Mackey
patent: 3221251 (1965-11-01), Margerum et al.
patent: 3396340 (1968-08-01), Black et al.

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