Signalling method for a radio system

Signalling processing system for circuit mode systems of a telec

Signalling switching system in a time switching network and time

Signalling transmission system

Simple adapter for multiplexing ISDN terminals

Simplex, party-line electromagnetic data packet transmission sys

Simplified transmission system for sequential time-compression o

Simulcast transmission of digital programs to shared antenna rec

Simulcasting digital video programs

Simultaneous AM and FM transmitter and receiver

Simultaneous analog and digital communication

Simultaneous bidirectional transceiver

Simultaneous broadcasting method and apparatus for interrupting

Simultaneous communication system using time delays

Simultaneous ringing control in the time division duplex telecom

Simultaneous TDMA communication system

Simultaneous transmission of speech and data over an analog chan

Simultaneous transmission of speech and data over an analog chan

Simultaneous transmission of two information signals within a ba

Simultaneous transmission of voice and data signals over a digit