Design of Reversible Logic Circuits by Means of Control Gates

A design methodology for reversible logic circuits is presented. Any boolean function can be built using the three fundamental building blocks of Feynman. The implementation of these logic gates into electronic circuitry is based on c-MOS technology and pass-transistor design. We present a chip containing single Feynman gates, as well as an application: a chip containing a fully reversible four-bit adder. We propose a generalization of the Feynman gates: the reversible control gates.