Digital modulator and digital demodulator

Digital radio transmission-reception apparatus

Digital transmission system

Direct QAM modulator with digital feedback control and...

Distortion compensating device

Dual-mode baseband controller for radio-frequency interfaces rel

Efficient pre-distorted 12/4 QAM modulator

FMOD transceivers including continuous and burst operated...

Forward error correction coding for AM 9kHz and 10kHz...

Frequency dependent phase rotation prior to mapping in an...

Impairment sensitive selection of constellation points for...

Independent LO IQ tuning for improved image rejection

IQ modulation systems and methods that use separate phase...

IQ modulator, and associated method

Limiting method and limiter apparatus

M-ary signal constellations suitable for non-linear...

Maximizing data rate by adjusting codes and code rates in...

Maximizing data rate by adjusting codes and code rates in...

Method and apparatus for constant envelope quadrature amplitude

Method and apparatus for determining signal components using dig