TERMINAL ENABLING FULL-DUPLEX VOCAL COMMUNICATION OR DATA COMMUNICATION ON AN AUTONOMOUS NETWORK SIMULTANEOUSLY WITH A DIRECT CONNECTION WITH OTHER COMMUNICATION MEANS ON OTHER NETWORKS

摘要

The portable communication terminal for communicating on at least two independent radio networks, comprises, in a single housing:Communication means (47, 49) by time multiplexing on a single radio channel, TDMA type full-duplex, for audio communication in “conference” and “hands-free” mode on a first autonomous network without infrastructure,Access means (43, 50) for half-duplex audio communication on a second autonomous network, independent from the first full-duplex network,A connection to a microphone (41) and a speaker (52),A wireless connection for a cellular telephone network,At least one pushbutton (45) for switching the communication of the microphone and the loudspeaker to and from the communication on the first network, the second network or the cellular telephone network by means of electronic switching circuits andAn electronic codec type audio signal mixer (42, 51) having a plurality of inputs and outputs, configured to mix half-duplex communications on the full-duplex local area network to provide to a user, via the microphone and the loudspeaker, simultaneous access to multiple audio communications on different networks, depending on the press on the push button.