Patent ID: 7429872

Claim:
A logic circuit combining an exclusive OR logic function and an exclusive NOR logic function, the logic circuit comprising: a first switch passing a first input signal as a first output signal when a second input signal is active and the first switch blocking the first input signal when the second input signal is inactive; a second switch passing the first input signal as a second output signal when the second input signal is inactive and blocking the first input signal when the second input signal is active; a first inverter receiving, inverting and outputting the first output signal as the second output signal when the first switch passes the first input signal; and a second inverter receiving, inverting and outputting the second output signal as the first output signal when the second switch passes the first input signal, wherein the first output signal is a logical exclusive NOR of the first and second input signal and the second output signal is a logical exclusive OR of the first and second input signal.