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:
Mar. 28, 2017
Filed:
Oct. 07, 2013
Philips Lighting Holding B.v., Eindhoven, NL;
Ties Van Bommel, Horst, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Tim Corneel Wilhelmus Schenk, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
A method for embedding data in light, wherein the method comprises the step of operating at least two light sources (A, B) arranged to emit light () having color coordinates (x, y) and luminous intensity (Y), wherein each light source is arranged to emit light () which is distinguishable from the light of at least one other light source, and embedding data in the light emitted from the at least two light sources. The method further comprises the step of operating the at least two light sources such that the color coordinates of the light emitted from the at least two light sources are maintained over time within a first, bounded interval (), and the luminous intensity of the light emitted from the at least two light sources is maintained over time within a second, bounded interval ().