Control interface for converting subtractive color input to additive primary color output

• US 20060187236A1
• Filed: 02/18/2005
• Published: 08/24/2006
• Est. Priority Date: 02/18/2005
• Status: Abandoned Application

• Current Assignee: Creativity, Inc.
• Original Assignee: Creativity, Inc.
• Inventors: Garrett, Joshua W., Runnels, Robert C.
• Application Number:
  US11/061,949
• Publication Number:
  US 20060187236A1
• Time in Patent Office: Days
• US Class Current: 345/593
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/22 using optical feedback

Abstract

A control interface for producing a composite color through the mixing of primary colors selected from a first color spectrum including red, yellow, and blue, resulting in the display of said composite color through a light array containing lights of a second primary color spectrum is disclosed. The user selects a color or colors from the first primary color spectrum, and a circuit and control algorithm controls the relative intensities of the colors comprising the second primary color spectrum, rendering the selected color or a mix of previously selected colors through the light array. Through the selection and graduated combination of the primary colors of the first spectrum, the creation of a wide range of colors in the visual spectrum is obtained for lighted color applications. When the first spectrum comprises the primary colors of red, yellow, and blue, the user is able to use the familiar three-primary, three-secondary color wheel, used in art education and taught in elementary school, for their color combination reference. The color selections from the first spectrum are coded to produce corresponding electrical signals to control the output of the light array to establish the proper mix of colors that displays the selected color.

Claims

1. A system for controlling the color output of a product, the system comprising:

a selector circuit providing a selection of colors from a first spectrum of colors comprising the colors red, yellow, and blue;

a light array comprising a second spectrum of colors linked to the controller circuit;

a controller circuit that configures the light array to display a color that reflects the mixing of one or more colors selected from the first spectrum with any color displayed by the light array prior to such selection.

2. The system of claim 1 wherein the light array comprises a tri-color light emitting diode (LED) array.

3. The system of claim 2 further comprising a microprocessor coupled to the selector circuit and light array, and configured to control the light array through pulse width modulation.

4. The system of claim 3 wherein the microprocessor is programmed to display a first color selected by the selector circuit on the light array and add a color component of a second color selected by the selector circuit on the light array.

5. A system for controlling the color output of a product, the system comprising:

a selector circuit providing a selection of colors from a first spectrum of colors comprising the colors red, yellow, and blue;

a light array comprising a second spectrum linked to the controller circuit;

a controller circuit that configures the light array to display a color that reflects the complete or partial removal of the color selected from the first spectrum from any color displayed by the light array prior to such selection.

6. The system of claim 5 wherein the light array comprises a tri-color light emitting diode (LED) array.

7. The system of claim 6 further comprising a microprocessor coupled to the selector circuit and light array, and configured to control the light array through pulse width modulation.

8. A system for controlling the color output of a product, the system comprising:

a selector circuit providing a selection of colors from a first spectrum of colors comprising the colors red, yellow, and blue;

a light array in a neutral state, wherein the light array is configured to display colors derived from a second spectrum of colors when placed in an activated state; and

a controller circuit that configures the light array to display a color that reflects a mixing of one or more colors selected from the first spectrum of colors.

9. The system of claim 8 wherein the light array comprises a tri-color light emitting diode (LED) array.

10. The system of claim 9 further comprising a microprocessor coupled to the selector circuit and light array, and configured to control the light array through pulse width modulation.

11. A method of interfacing a color selector to a light array, comprising the steps of:

receiving a first color selection from a palette containing an option of red, yellow, or blue color input;

determining whether the first color selection is red, yellow, or blue;

generating the relative intensity values of a light array comprising a red light element, a blue light element, and a green light element in order to produce the first selected color on the light array, the first selected color producing a red light value, a blue light value, and a green light value, the light values corresponding to relative intensities of the light elements;

receiving a second color selection from the palette;

altering the relative light values of the light array to add the color component corresponding to the second color selection for display on the light array.

12. The method of claim 11 wherein, if the first or second color selection is red, the method further comprises the step of determining whether the red light value is less than maximum, and if so, increasing the red light value;

then decreasing the blue light value if the blue light value is greater than zero, and then decreasing the green light value if the green light value is greater than zero.

13. The method of claim 12 wherein, if the first or second color selection is yellow, the method further comprises the step of determining whether the blue light value is greater than zero, and if so decreasing the blue light value and increasing the green light value if the green light value is less than maximum;

and if not, increasing the red light value if the red light value is less than maximum, then increasing the green light value if the green light value is less than maximum.

14. The method of claim 13 wherein, if the first or second color selection is blue, the method further comprises the step of determining whether the red light value is greater than zero, and if so decreasing the red light value and increasing the blue light value if the green light value is less than one;

and if not, increasing the blue light value if the blue light value is less than maximum, then decreasing the green light value if the green light value is greater than zero.