Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Patent
1980-03-11
1982-01-26
Bookbinder, Marc E.
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
329 50, 329122, 331 4, 375 83, 375 97, H04B 126, H03D 302
Patent
active
043132197
ABSTRACT:
A receiver for high frequency electromagnetic oscillations, having frequency readjustment with a voltage-control oscillator, includes a phase control loop for regaining the carrier in the signal path of the receiver. The phase control loop comprises a device for recovering the carrier, a phase-locked loop oscillator and phase detector which receives the output signal of the carrier recovery device and the oscillations of the phase-locked loop oscillator as a reference, and a demodulator which receives the modulated input signal and the output of the phase-locked loop oscillator.
REFERENCES:
patent: 3069625 (1952-12-01), Morita et al.
patent: 3789302 (1974-01-01), Rearwin et al.
patent: 3878527 (1975-04-01), Rensin et al.
Gabler Egmont
Lehmann Uwe
Bookbinder Marc E.
Siemens Aktiengesellschaft
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