Sound channel circuit for frequency-modulated signals

Details Sound channel circuit for frequency-modulated signals Sound channel circuit for frequency-modulated signals

1980-02-13

1981-07-14

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

329110, 455214, H04N 560

Patent

active

042789982

ABSTRACT:
The present invention describes a sound channel circuit for frequency-modulated signals which operates according to fully digital principles. The circuit contains a VMOS output D-stage and no analog FM demodulator is necessary.

REFERENCES:
patent: 3609555 (1971-09-01), Blerkom et al.

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