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US 8,408,744 B2Granted
RGB LED control using vector calibration
AssigneeHewlett-Packard Development Company, L.P.
InventorsThomas H Szolyga, Luca Di Fiore
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Abstract
Color matching and coordinated illumination is achieved using RGB LEDs and vector calibration.
Claims12
A computer comprising:
- a housing separating a computer interior from a computer exterior;
- a processor in said interior;
- computer-readable media in said interior;
- plural RGB LEDs illuminating at least some of said housing and at least some of said exterior, wherein said RGB LEDs have respective color production functions that differ from each other;
- and
- an RGB LED controller for controlling said RGB LEDs, said RGB LED controller applying color vector adjustments to requested color values according to one or more calibration functions, the calibration functions configured to yield an adjusted color vector.
3 more elements
A method comprising:
- adjusting a requested color vector according to a vector calibration function to yield an adjusted color vector;
- and driving an RGB LED using voltages determined as a function of said adjusted color vector.
An RGB LED controller comprising:
- media including calibration data for converting a requested color vector to an adjusted color vector according to a vector calibration function;
- and
- digital-to-analog converters for converting said adjusted color vector to voltages for driving one or more RGB LEDs.
Dependencies are inferred from the claim text.