TRANSMISSION SYSTEM FOR TRANSMITTING A MAIN SIGNAL AND AN AUXILIARY SIGNAL

摘要

In a transmission system with a transmitter (4) coupled to a receiver (6) a main signal (SPEECH INPUT) encoded according to a coding property is transmitted together with an auxiliary signal (AUX). In order to transmit the auxiliary signal without needing additional space in the transmission frame, it is proposed to transmit the auxiliary signal by changing the coding property according to a predetermined sequence. This is done by means of the sequencer (13). In the receiver (6) the decoding of the predetermined sequence is performed by a decoder (31).