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:
Nov. 08, 2011
Filed:
Oct. 27, 2008
Applicants:
Susumu Takahashi, Tokyo, JP;
Kanji Oishi, Tokyo, JP;
Inventors:
Susumu Takahashi, Tokyo, JP;
Kanji Oishi, Tokyo, JP;
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes a memory cell array divided into a plurality of areas, a common data bus connected to an input/output circuit, a plurality of individual data buses connected to different areas of the memory cell array through different paths respectively, and a bidirectional buffer connected to the common data bus and the individual data buses. In the semiconductor memory device, the bidirectional buffers transmit data bidirectionally between the common data bus and a selected one of the individual data buses.