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.

Date of Patent:
Sep. 24, 2024

Filed:

Mar. 18, 2021
Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:

Peter Isaac Goldstein, Woburn, MA (US);

James William Preston, Westford, MA (US);

Hong Zhang, Lexington, MA (US);

Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/20 (2020.01);
U.S. Cl.
CPC ...
H05B 45/20 (2020.01);
Abstract

A method of driving a plurality of LED-based light sources to provide accurate white points and saturated color points. The method includes receiving or setting a selectable target chromaticity; determining that the selectable target chromaticity is between two vertices of the global common gamut; defining an inner region within the global common gamut; calculating a first directed distance between the selectable target chromaticity and the transition boundary of the inner region and a second directed distance between the selectable target chromaticity and a straight side of the global common gamut; and modifying the selectable target chromaticity to a modified target chromaticity within a light fixture gamut based at least in part on the calculated first and second directed distances; or generating an activation signal for driving the plurality of light sources based on the selectable target chromaticity based at least in part on the calculated first and second directed distances.


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