Industry Patents

Patent: 7642730

Methods and Apparatus for Conveying Information Via Color of Light

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Patent Number:	7642730
Title:	Methods and Apparatus for Conveying Information Via Color of Light
Abstract:	Methods and apparatus for conveying information. One or more information signals representing scalar or numeric information that is not associated with color is/are received from a data base, a network, the World Wide Web, or a software program. The information signal(s) is/are converted into one or more illumination control signals representing at least color information, and a color of illumination generated by one or more LED-based light sources is controlled in response to the illumination control signal(s) so as to convey the scalar or numeric information via at least the color of the generated illumination.
Country of Issue:	US
First Named Inventor:	Dowling, Morgan, Chemel, Mincheva, Lys
Assignee:	Philips SSL
Continuation or Divisional of:	7385359
International Classification:	G05F 1/00
US Classification:	315/292
Issue Date:	01-05-2010
Filing Date:	12-18-2007
Application :	11/958607
Notes:
Link to Patent at freepatentsonline.com:	7642730 at Freepatentsonline
Link to World Patent Family¹:	World Patent Family at European Patent Office
Link to Google Patents¹:	7642730 at Google Patents

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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