Patent ID: 6313677
Filing Date: 2001-11-06
Classification: H03K

Abstract:
A signal transmission circuit, comprising:a driver circuit configured for transmitting a signal;a signal line having one end coupled to the driver circuit and configured for propagating the transmitted signal;a driven circuit coupled to the other end of the signal line, the driven circuit being configured so as to be powered by two power source voltages Vss and Vdd (Vdd>Vss) and for receiving the transmitted signal; andan assist circuit, coupled to the signal line at a point between the one end and the other end, the assist-circuit being configured for outputting a prescribed voltage to the signal line, the prescribed voltage being larger than power source voltage Vss and being smaller than power source voltage Vdd;wherein an output impedance of the assist-circuit is lower than an output impedance of the driver circuit.