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:
Apr. 12, 2016
Filed:
May. 08, 2013
Koninklijke Philips N.v., Eindhoven, NL;
Anteneh Alemu Abbo, Eindhoven, NL;
Johan-Paul Marie Gerard Linnartz, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
The present invention concerns LED drivers and is in particular directed to signal overlay for feature addition to an existing LED driver. Specifically, the invention is directed to an apparatus () for operating a LED driver (), to a method of operating a LED driver, to a computer program for operating a LED driver and to a LED driver unit. The apparatus () is capable of overlaying an overlay signal (digital or analogue) to a control signal () of the LED driver () in dependence of external control information (). The control signal () is provided to the LED driver at a control signal inlet (). By overlaying the overlay signal, the apparatus () modulates the control signal () and provides a modulated control signal () to the same control signal inlet ().