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.

Date of Patent:
Feb. 03, 2009

Filed:

Dec. 14, 2006
Applicants:

Akira Masuo, Osaka, JP;

Norihiko Sumitani, Osaka, JP;

Shigeo Houmura, Kyoto, JP;

Inventors:

Akira Masuo, Osaka, JP;

Norihiko Sumitani, Osaka, JP;

Shigeo Houmura, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01); H03K 19/084 (2006.01);
U.S. Cl.
CPC ...
Abstract

The decoder circuit includes: a power supply control circuit for supplying a first voltage; first and second transistors connected in series between the power supply control circuit and a first reference node; and third and fourth transistors connected between a connection node between the first and second transistors and a second reference node. The first transistor receives a first signal at its gate, and the second transistor receives a second signal corresponding to the first signal at its gate. The third transistor receives a third signal at its gate, and the fourth transistor receives a fourth signal corresponding to the third signal at its gate. The potential difference between the first voltage and the first reference node is smaller than the potential difference between the first reference node and the second reference node.


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