Accession Number : ADD002342
Title : Binary Adder with Fast Ripple Carry.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Pridgen,Janius I
Report Date : 19 Jan 1976
Pagination or Media Count : 11
Abstract : The patent application describes a binary adder using a sequence of alternating pairs of stages. Each stage has a full adder including an exclusive NOR circuit and a fast ripple carry gate. The carry in signal is fed to a logic gating circuit which becomes a sum output or is inverted and then becomes a sum output. The necessity for inversion is dependent upon gating signals applied to a pair of CMOS transistors, which are derived by the exclusive NOR circuit that is connected to the addend and augend inputs.
Descriptors : *Binary processors, Patents, Digital computers, Logic circuits, Arithmetic units
Subject Categories : Computer Hardware
Distribution Statement : APPROVED FOR PUBLIC RELEASE