Bendix Electronics S.a.

Van T Nguyen

Georges Deschamps

Claude Chateignon

The invention relates to the transmission of logic signals. The circuit comprises a port D connected to a line for the transmission of unipolar logic signals and a port (D+, D-) connected to a pair of wires for the transmission of differential logic signals. Current generators (T4, T5) send a positive differential signal when a unipolar 'low' logic signal is applied to port D. When the differential signal received at (D+, D-) must be transmitted on the D port by a 'low' level, the signal representing the low level remains higher than the voltage level V.sub.L1 below which the voltage generators are activated, in order to prevent any blockage of the circuit by looping of the signals within the circuit. Application to the multiplexing of the flow of data processed in an automobile vehicle.

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Toulouse, France

Van T Nguyen