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:
Jun. 13, 2000
Filed:
Oct. 18, 1996
Applicant:
Inventor:
Ted Nguyen, Saratoga, CA (US);
Assignee:
Samsung Electronics Co., Ltd., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
708706 ; 708710 ; 708714 ;
Abstract
A circuit is disclosed herein which generates the sum of two numbers (A and B) and the sum plus 1 in parallel so as not to take any additional time to generate the sum plus 1 value. The circuit comprises a carry look-ahead (CLA) tree portion and a summer portion. The CLA tree portion generates carry bits, as well as the logical relationship A.sub.i XOR B.sub.i, for application to a summer for bit position i. The carry bits contain information for either inverting or not inverting the A.sub.i XOR B.sub.i bit for both the sum and the sum plus 1 output of the summer. The sum bit and sum plus 1 bit are generated at approximately the same time.