Modulation method and apparatus for dimming and/or colour mixing utilizing LEDs
US8299987B2 · kind B2 · utility
53Cited by
14References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2006 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided apparatus for controlling a set of light emitting diodes (LEDs) comprising at least one current source for powering the set of LEDs; a main controller for receiving dimming and/or color mixing information and for translating the information into LED control information and transmitting the LED control information to control the set of LEDs; wherein the LED control information is based on and off times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.