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:
Sep. 14, 1993
Filed:
Sep. 20, 1991
Applicant:
Inventor:
Charles E Hauck, Jr, Framingham, MA (US);
Assignee:
Kendall Square Research Corporation, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364745 ; 364748 ;
Abstract
A method and processor for evaluating numbers processes components of a pair of input numbers A, B in a plurality of identical gate structures. Each gate structure receives information from two bit positions and operates without carry information or any earlier computations to produce a conditional sum word. A control signal derived from the conditional sum word provides the same evaluation as the actual sum in fewer processing steps. A preferred embodiment produces the sticky bit for a rounding off unit in a floating point processor.