.pi./4 differential encoding for digital cellular mobile systems
16 QAM modulator and method of 16 QAM modulation
90° phase generator
Active 90-degree phase shifter with LC-type emitter...
Adaptively self-correcting modulation system and method
Amplitude and phase error normalization of subcarrier generator
Amplitude imbalance compensation of quadrature modulator
Apparatus and method for adjusting microwave BPSK modulator and
Apparatus for correcting quadrature error in a modulator and/or
Architecture for universal modulator
Bi-phase modulator apparatus and method
Bi-polar modulator
Bias circuit for use in quadrature modulator
Binary phase shift key modulator with programmable level control
Biphase modulaton circuit having continuous phase changes
Biphase modulator and method without matching elements
Biphase modulator with balun design
Biphase shift keying modulation circuit having constant envelope
CDMA modulation method and device therefor
Circuit and method for compensating for non-linear distortion