The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 1991
Filed:
Nov. 21, 1989
Richard S Schlunt, Loma Linda, CA (US);
General Dynamics Corporation Air Defense Systems Div., Pomona, CA (US);
Abstract
A system for calculating the dot product of the vectors A(k) and B(k) of dimension Q written in two's complement representation. A bus has a width sufficient for communicating signals representing a plurality of bit planes A(j,Q) and B(n,Q) corresponding to the two's complement representations of A(k) and B(k), respectively. Circuitry connected to the bus calculates C(j,n)=A(j,Q).B(n,Q) for each of said bit planes. An adder sequentially determines R(n)=C(0,n)2.sup.0 +C(1,n)2.sup.1 + . . . C(N-1,n)2.sup.(N-1) -C(N,n)2.sup.N for n=0,1,2 . . . N. An accumulator connected to the adder shifts and accumulates the R(n)'s to thereby determine the dot product according to: ##EQU1##