Complementary logic circuit

A logic circuit having n inputs for accepting n binary inputs (X, Y) and having an output terminal for providing as an output a predetermined logical binary function (B) of said n inputs. … The logic circuit comprises n transistors (11, 12) of a first conductivity type, the bases of which form the inputs, an n + 1 transistor (2) of said first conductivity type, and an n + 2 transistor (1) of the second conductivity type. … The collectors of said n transistors (11, 12) and the emitter of said n + 2 transistor (1) are connected. … The emitters of said n transistors and the emitter of said n + 1 transistor (2) are connected. … A first resistor (3) is connected between the emitter of said n + 2 transistor (1) and a first source of potential. … A second resistor (4) is connected between the collector of said n + 1 transistor (2) and said first source of potential. … A third resistor (5) is connected between the emitter of said n + 1 transistor (2) and a third source of potential. … The collector of said n + 2 transistor (1) is connected to said third source of potential. … The base of said n + 1 transistor (2) and the base of the n + 2 transistor (1) are fed in common to a second source of potential. … The collector of said n + 1 transistor (3) forms the output of the circuit.