Coding and decoding a modulated radio frequency signal

Coding and decoding apparatus for the protection of communicatio

Coding apparatus with low-frequency and DC suppression

Coding device and a decoding device

Coding device selectively connected to a transmission line

Coding digital data

Coding for digital transmission

Coding method for reducing the D.C. component in the data stream

Coding method, coder and decoder for digital signal, and recordi

Coding transmission equipment for carrying out coding with adapt

Coefficient tap leakage for fractionally-spaced equalizers

Coherent data communications technique

Coherent demodulating device with carrier wave recovering digita

Coherent demodulation method for a digitally modulated signal ha

Coherent demodulation with decision-directed channel estimation

Coherent demodulator for .pi./4 shifted QPSK signal

Coherent detection architecture for remote calibration of cohere

Coherent detection for QPSK modulation

Coherent detector for QPSK modulation in a TDMA system

Coherent dual-channel QPSK modulator/demodulator for CDMA system