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. 26, 2013
Filed:
Apr. 14, 2009
Peter Hubertus Franciscus Deurenberg, S-Hertogenbosch, NL;
Joannes Wilhemus Gertrudis Marie Jacobs, Roermond, NL;
Peter Hubertus Franciscus Deurenberg, S-Hertogenbosch, NL;
Joannes Wilhemus Gertrudis Marie Jacobs, Roermond, NL;
NXP B.V., Eindhoven, NL;
Abstract
A driver for driving an LED uses PWM in a sequence of the periods. The driver has a modulo counter, that is reset after each period. The driver has a first adder for combining the count value with a quantity indicative of a shift of the LED's control pulse relative to the start of the period; a second adder for combining the count value with a width quantity indicative of a width of the control pulse; and a logic gate receiving the MSBs at the outputs of the adders and supplying the control pulse.