Bidirectional signal transmission circuit between units in vehicle radar system, has transmitters which apply respective currents to data line, where they are superimposed

摘要

The circuit includes a transmitter (Tx1,Tx2) and a receiver (Rx1,Rx2), for each unit. The transmitters and receivers form modules that are connected together via a data line (13). Each transmitter applies a current (I1,I2) to the data line, where they are superimposed to form one current (I12) A shunt resistor (4,7) is provided for each unit, for carrying the current applied by the data line. An Independent claim is included for a transceiver.