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:
Dec. 03, 2019
Filed:
May. 12, 2017
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Tadashi Kobayashi, Kyoto, JP;
Masafumi Seike, Kyoto, JP;
Atsushi Momota, Kyoto, JP;
Hideki Nishiyama, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 11/00 (2006.01); H05B 37/03 (2006.01); B60Q 1/04 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
B60Q 11/005 (2013.01); B60Q 1/04 (2013.01); B60Q 11/00 (2013.01); H05B 33/0893 (2013.01); H05B 37/03 (2013.01); Y02B 20/42 (2013.01); Y02B 20/44 (2013.01);
Abstract
An abnormality detection apparatus () is configured to detect an abnormality of a lighting device (). The abnormality detection apparatus () includes an illuminance sensor (), a memory () and a controller (). The controller () is configured to detect the abnormality of the lighting device () based on a criterion stored in the memory () and a difference between an illuminance detected by the illuminance sensor () during on state of the lighting device () and an illuminance detected by the illuminance sensor () during off state of the lighting device ().