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:
Feb. 13, 2007
Filed:
Apr. 07, 2005
Applicant:
Katsutoshi Moriyama, Saga, JP;
Inventor:
Katsutoshi Moriyama, Saga, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data readout circuit for reading memory data from a resistance change memory disposed at a point where a bit line and a word line intersect by setting a potential of the bit line to a predetermined bias potential and detecting a current value flowing in the resistance change memory, includes a capacitance device connected to the bit line via a switching device; and a current supply circuit connected to both ends of the switching device to provide a current to the bit line such that the potential of the bit line is equal to a potential of the capacitance device.