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:
Nov. 13, 2012
Filed:
Apr. 27, 2007
Applicants:
Olivier Tico, Toulouse, FR;
Ludovic Oddoart, Frouzins, FR;
Cor Voorwinden, Toulouse, FR;
Inventors:
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/033 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power supply controller for a plurality of lighting components in a battery-powered apparatus. The power supply controller comprises a current source common to the lighting components, and a sequencer for coupling the current source sequentially to each of the lighting components with a repetition rate substantially faster than the flicker perception rate. Each of the lighting components comprises a respective array of lighting elements connected in series to receive the same current as the other lighting elements of the same lighting component.