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. 29, 1999
Filed:
Feb. 27, 1997
Tadahiro Ohmi, Miyagi-ken, JP;
Makoto Imai, Miyagi-ken, JP;
Koji Kotani, Miyagi-ken, JP;
Tadashi Shibata, Sendai-shi, Miyagi-ken 982-02, JP;
Other;
Abstract
A semiconductor arithmetic circuit which realizes multiple-item addition processing at high speed and with a small surface areas The semiconductor arithmetic circuit adds a plurality of data expressed in binary format which is provided with terminals for the simultaneous input of the plurality of data, a mechanism for conducting a batch addition operation with respect to all the bits of the plurality of data, and for generating an analog or multi-valued signal having a linear relationship with the results of this addition and a mechanism for converting the analog or multi-valued signal to a digital signal. The plurality of data comprise bit data signals, and 4 or more of these are subjected to batch addition. A plurality of bit groups including a plurality of connected bits are also subjected to batch addition.