Method and apparatus to communicate traffic jams to vehicle users

Abstract

Abstract The invention relates to radio communications between at least one transmitter station 1 and receivers 5 installed in vehicles. It is characterised in that there are superimposed on the normal audible transmission, coded signals, preferably inaudible, which are picked up by the usual antennas 4 then decoded by decoders 7 in order to act on breakers 16 each corresponding to a lighting unit 13 such as a light-emitting diode. The box 12 which receives the diodes 13 and the breakers 16 receives a plan or road map 15, provided with windows 14 opposite the diodes 13 and at sites which correspond to actual locations where traffic jams occur. The station 1 periodically transmits coded signals which update the situation indicated by the table by lighting or extinguishing each relevant diode. <IMAGE>

Inventors

• 👤 Robert Serina

Bibliographic Details