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:
Mar. 08, 2011
Filed:
Jun. 07, 2007
Applicant:
Toshiyuki Matsunaga, Kanagawa, JP;
Inventor:
Toshiyuki Matsunaga, Kanagawa, JP;
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A voltage drop measurement circuit includes a voltage drop circuit to generate an output voltage and fluctuate the output voltage according to a fluctuation in a power supply voltage, where the output voltage being the power supply voltage dropped by a predetermined amount and a flip-flop to retain a flag indicating a drop in the power supply voltage according to the output voltage.