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:
Nov. 18, 2014
Filed:
Mar. 02, 2012
Applicant:
Kenichi Kitamura, Kawasaki, JP;
Inventor:
Kenichi Kitamura, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 5/00 (2006.01); G06F 5/01 (2006.01); G06F 7/523 (2006.01); G06F 7/50 (2006.01);
U.S. Cl.
CPC ...
G06F 5/01 (2013.01); G06F 7/523 (2013.01); G06F 7/50 (2013.01);
Abstract
An arithmetic operation circuit includes: an extractor circuit that extracts one or a plurality of bits consecutive from a most significant bit or from a least significant bit of a binary number; a sum register that stores an X-adic sum, where X is an integer more than two; and an update circuit that updates the stored X-adic sum with a value obtained by adding a first X-adic number to be cyclically multiplied by a certain coefficient to the X-adic sum in accordance with the extracted one or plurality of bits.