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. 22, 2015
Filed:
Oct. 11, 2011
Applicant:
Takashi Ito, Kawasaki, JP;
Inventor:
Takashi Ito, Kawasaki, JP;
Assignee:
RENESAS ELECTRONICS CORPORATION, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/3565 (2006.01); G11C 7/20 (2006.01); H03K 17/22 (2006.01); G11C 5/14 (2006.01); G11C 7/12 (2006.01); G11C 7/02 (2006.01);
U.S. Cl.
CPC ...
H03K 3/3565 (2013.01); G11C 5/147 (2013.01); G11C 7/02 (2013.01); G11C 7/12 (2013.01); G11C 7/20 (2013.01); H03K 17/223 (2013.01);
Abstract
A control logic unit generates a control signal which is activated while a power supply normally operates. A charge circuit is connected to a first node on a voltage control line supplied with a voltage generated by a voltage generation circuit, so that its capacitive element is charged with electric charge. A first discharge circuit is connected to a charge storage node of the charge circuit and discharges the stored electric charge when the control signal is activated. A second discharge circuit discharges the first node when the charge storage node has a potential exceeding a predetermined potential.