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:
May. 10, 2016
Filed:
Jan. 13, 2012
Applicant:
Koji Katsura, Kyoto, JP;
Inventor:
Koji Katsura, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60Q 1/02 (2006.01); B60Q 11/00 (2006.01); G01R 31/26 (2014.01); H05B 33/08 (2006.01); G01R 31/02 (2006.01);
U.S. Cl.
CPC ...
B60Q 11/005 (2013.01); G01R 31/2635 (2013.01); H05B 33/0887 (2013.01); G01R 31/025 (2013.01);
Abstract
An LED short-circuit detection circuit produces an LED short-circuit detection signal by monitoring an LEDC terminal voltage (a first voltage obtained at a chip-to-chip node in a row of LED chips, or a divided voltage thereof) and an LEDR terminal voltage (a second voltage obtained by dividing the end-to-end voltage of the row of LED chips).
Katsura, Koji. (2016). Led short-circuit detection circuit, led drive device, led lighting device, and vehicle (U.S. Patent No. 9333914). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9333914
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile