Patent ID: 7064581

Claim:
A bus interface for connecting a bus device to a bus using a pair of complementary bus lines, the bus interface comprising: a first driver circuit that includes an input connected to the bus device, and an output connected to a first bus line of the pair of complementary bus lines; and a second driver circuit that is complementary to the first driver circuit and that includes an output connected to a second bus line of the pair of complementary bus lines, wherein an input of the second driver circuit is connected to the output of the first driver circuit via a center tapping point of a voltage divider, which is connected between the output of the first driver circuit and the output of the second driver circuit, the second driver circuit including a regulator to regulate a potential at the center tapping point of the voltage divider at a predetermined level, wherein the second driver circuit is inverse-operated relative to the first driver circuit with respect to a common voltage.