Receiver for CVSD modulation with integral filtering

Details Receiver for CVSD modulation with integral filtering Receiver for CVSD modulation with integral filtering

1980-12-30

1983-09-20

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

332 11D, 364724, H03K 1322

Patent

active

044060106

ABSTRACT:
CVSD modulation is detected by applying a digital signal containing CVSD information to a digital filter that is in the CVSD loop that includes a syllabic filter and a rule circuit. The digital filter includes voltage-operated switches that switch one of two voltages to a resistor network and thereby combine multiplication and digital filtering. The output of the digital filter is the output of the circuit.

REFERENCES:
patent: 3857111 (1974-12-01), Deschenes et al.
patent: 3878465 (1975-04-01), Stephenne et al.
patent: 3899754 (1975-08-01), Brolin
patent: 4035724 (1977-07-01), Stephenne et al.
patent: 4044306 (1977-08-01), Villeret et al.
patent: 4151517 (1979-04-01), Kelley
patent: 4233684 (1980-11-01), Eggermont
patent: 4264974 (1981-04-01), Crouse

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