(under subclass 52) Subject matter comprising a logic circuit which has two input and two output channels for binary signals, and which operates to produce an output signal (i.e., sum) on one of the output channels when one, but not both, of the input signals is present and an output (i.e., carry) on the other output channel when both of the input signals are present.
SEE OR SEARCH CLASS
327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
361, for miscellaneous circuits producing the algebraic sum of two or more input voltages.
708, Electrical Computers: Arithmetic Processing and Calculating,
670+, for the complete arithmetic operation of addition or subtraction, for example, full adders.
