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:
Oct. 21, 2025
Filed:
Dec. 01, 2021
Applicant:
Renesas Design (Uk) Limited, Bourne End, GB;
Inventors:
Weihai Huang, Bourne End, GB;
Ze Han, Bourne End, GB;
Assignee:
Renesas Design (UK) Limited, Bourne End, GB;
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/397 (2020.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
H05B 45/397 (2020.01); G09G 3/32 (2013.01); G09G 2310/0264 (2013.01);
Abstract
A driver for use with a light source is presented. The driver includes a first circuit and a second circuit. The first circuit is adapted to control an amount of current flowing through the light source to switch the light source between a first state when the light source is on and a second state when the light source is off. The second circuit is adapted to generate a leak current so that during the second state the leak current flows through the light source.