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:
Aug. 11, 2015
Filed:
Mar. 08, 2012
Applicant:
Daisuke Kanzaki, Tokyo, JP;
Inventor:
Daisuke Kanzaki, Tokyo, JP;
Assignee:
RICOH ELECTRONIC DEVICES CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3658 (2013.01); G01R 31/362 (2013.01); H02J 7/0021 (2013.01); H02J 2007/004 (2013.01); H02J 2007/0037 (2013.01);
Abstract
A voltage monitor semiconductor device to monitor voltages of multiple rechargeable devices to output a detection result signal to indicate overcharge, over-discharge, or excess-current, the voltage monitor semiconductor device including multiple voltage input terminals, corresponding to the multiple rechargeable devices, to monitor the voltages of the corresponding rechargeable devices as monitor voltages; and a test signal generation circuit to generate a first test signal that inverts when at least one of the monitor voltages falls below a predetermined first threshold voltage that is not used normally as an abnormal state.