Radio receiver and a radio transmitter

Receiver adaptively operable for multiple signal transmission sy

Receiver addressable AM compatible digital broadcast system

Receiver and IC thereof capable of receiving analog...

Recovering analog and digital signals from superimposed analog a

Sample rate converter

Side-channel communications in simultaneous voice and data trans

Signal processing

Squelch circuitry for high speed high frequency operation

Switchable circuit for processing and demodulating digital and a

System and method for simultaneous voice and data with adaptive

Technique for modulating orthogonal signals with one or more ana

Technique for simultaneous communications of analog frequency-mo

Unbalanced quadrature waveform

Zero value-detecting circuit