AM/FM synchronizing circuit

Details AM/FM synchronizing circuit AM/FM synchronizing circuit

1986-07-18

1987-09-01

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381 15, 455142, 455144, H04N 500

Patent

active

046913564

ABSTRACT:
A synchronizing circuit used for both an AM intermediate frequency signal and an FM composite signal. A phase detector, voltage-controlled oscillator, frequency divider and phase shifter are connected in a phase-locked loop. The division factor of the frequency divider is controlled to different values for the AM and FM signals.

REFERENCES:
patent: 4435618 (1984-03-01), Fujishima

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