π/4 QPSK modulator

&pgr;/4 DQPSK encoder and modulator

&pgr;/4 shift QPSK modulator and communication device

8PSK modulator

Alternating quadratures differential binary phase shift...

Analog FSK modulator for a radio transmitter

Apparatus and method for frequency shift keying

Apparatus and method for GMSK baseband modulation based on a...

Apparatus and method for implementing a low complexity...

Apparatus and method for increasing the effective data rate...

Apparatus and method for processing data using COPSK of...

Apparatus and method for ultra narrow band wireless...

Apparatus and method for ultra narrow band wireless...

Apparatus and method for WGIO phase modulation

Apparatus and method to communicate information within a...

Apparatus for and method of generating .pi.-/N-shifted N-differe

Apparatus for reducing electromagnetic radiation from a differen

Backward compatible DVB-S standard transmission system

Base band signal processing circuit capable of improving...

Baseband compensation of an offset phase locked loop