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:
May. 18, 1999
Filed:
Apr. 28, 1995
Applicant:
Inventor:
Satoshi Matsui, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
708603 ; 708319 ; 708320 ;
Abstract
A product-sum device has a data register and a coefficient register and calculates the sum of products of the outputs of the data register and coefficient register. The data register has register elements that successively shift presently held data whenever new data is supplied to the data register. The coefficient register has register elements corresponding to the register elements. The product-sum device carries out a filtering operation at high speed.