Digital signal receiver having a dual bandwidth tracking loop

Digital subharmonic sampling down-converter

Digital synchronous detectors using time division for extracting

Digital transmission demodulator including an automatic fault co

Digital/analog phase-locked oscillator

Digitalized amplitude detection circuit for analog input signal

Digitally implemented fast frequency estimator/demodulator for l

Digitally processed demodulator for quadrature modulated signals

Digitized synchronous demodulator

Digitizing circuit for demodulated digital data signals

Diode detecting circuit

Diode detector with linearity compensating circuit

Direct conversion FSK receiver using frequency tracking filters

Direct conversion receiver using single reference clock signal

Direct digital synthesis in a QAM demodulator

Direct function receivers and transmitters for multichannel comm

Direct microwave demodulator of PSK signals with automatic gain

Discrimination circuit for isolating disturbance signals which a

Discritized phase constellation continuous phase modulation...

Doppler learning phase lock loop for burst demodulator