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:
Sep. 20, 2005
Filed:
Aug. 20, 2003
Applicant:
Koji Naganawa, Tokyo, JP;
Inventor:
Koji Naganawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03K019/003 ;
U.S. Cl.
CPC ...
Abstract
A data output circuit which outputs data on an internal bus line onto an external bus line includes a comparator, inverter, and controller. The comparator compares data on the external bus line and data to be output on the internal bus line. The inverter outputs a signal obtained by inverting the data on the internal bus line when the number of changed bits exceeds half the total number of bits on the basis of an output result from the comparator. The controller outputs an inversion display signal representing that the data has been inverted. A data output method is also disclosed.