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:
Dec. 06, 2011
Filed:
Feb. 19, 2009
Applicants:
Taiki Uemura, Kawasaki, JP;
Yoshiharu Tosaka, Kawasaki, JP;
Inventors:
Taiki Uemura, Kawasaki, JP;
Yoshiharu Tosaka, Kawasaki, JP;
Assignee:
Fujitsu Semiconductor Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A latch circuit includes: four or more gates; three input terminals and one or two output terminals which are connected to at least one of the four or more gates; a feedback circuit in which respective input terminals of the four or more gates are connected to output terminals of at least another two of the four gates; and a data inverting gate which, when all data input into the three input terminals is the same, outputs inverted data of the data from the output terminals, and when all the data input into the three input terminals is not the same, retains previous data.