Industry Patents
Patent: 6897622
Incremental Color Blending Illumination System Using LEDs
(Click image for PDF of full patent)
| Patent Number: |
6897622 |
| Title: |
Incremental Color Blending Illumination System Using LEDs |
| Abstract: |
A plurality of color LEDs are commonly coupled to a source of operating
supply. A plurality of switching transistors and current limiting
resistors in series therewith are coupled to the color LEDs to control the
current there through in response to switching transistor conduction. A
microcontroller having an input signal and a plurality of outputs
configured in response thereto is operatively coupled to the plurality of
switching transistors to control the conduction and thereby illumination
output of the color LEDs to achieve incremental color blending.
|
| Country of Issue: |
US |
| First Named Inventor: |
Lister |
| Assignee: |
Mattel |
| Continuation or Divisional of: |
|
| International Classification: |
G05F 1/00 |
| US Classification: |
315/291 |
| Issue Date: |
05-24-2005 |
| Filing Date: |
06-30-2003 |
| Application : |
10/610808 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
6897622 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
6897622 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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