Direct conversion receiver for frequency-shift keying...

Direct conversion receiver having filter with cut-off frequency

Direct conversion receiver including mixer down-converting...

Direct conversion receiver with direct current offset...

Direct conversion receiving apparatus with DC component cut...

Direct demodulation method and apparatus

Direct phase digitizing apparatus and method

Direct-conversion receiver for digital-modulation signal

Discrete time control loop method and apparatus for clocking dat

Diversity combining

Diversity Pi/4-DQPSK demodulation

Double sideband-intermediate frequency radio receiver...

Down/up-conversion apparatus and method

Downconvert and average identification of biphase coded...

DPSK communications with Doppler compensation

DQPSK mapping circuit

DSP implementation of a cellular base station receiver

Dual band telemetry system

Dual layer signal processing in a layered modulation digital...

Dual layer signal processing in a layered modulation digital...