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:
Mar. 19, 2002
Filed:
Jun. 02, 1999
Naoki Hayashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A summing circuit includes a summing section and a shift bit searching section. The summing section receives an input data and a previous summation resultant data, bit-shifts the input data and the previous summation resultant data in response to first and second bit shift control signals, respectively. Also, the summing section adds the bit-shifted input data and the bit-shifted previous summation resultant data to generate a current summation resultant data and to output a part of the current summation resultant data as a shift bit calculation data. The shift bit searching section outputs the first and second bit shift control signals for addition of a next input data and the current summation resultant data to the summing section based on the shift bit calculation data.