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:
Aug. 22, 1989
Filed:
Jan. 05, 1989
Applicant:
Inventor:
Nobuyuki Ikumi, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364768 ;
Abstract
In a prehcarge-type carry chained adder circuit, stages as represented by adders are grouped into a plurality of blocks each consisting of a plurality of stages. When the propagating functions of the stages of each block are active, a carry signal reproduced from the preceding block is transferred to the succeeding blocks through a bypass circuit.