System and method to address and control serially connected LEDs
US8492983B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Dec 6, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application relates to the systems and methods for networking and control of lighting systems. In particular, this application relates to the addressing and control of light emitting diodes (LEDs) connected serially on a bus within a network of serially bussed LEDs. The approaches described in this application simplify and lower the cost of control by distributing the control functions between a serial bus controller and controllers associated with individual LEDs or LED circuits on the serial bus. Hardware intensive decoding of predefined addresses, or time consuming address processing and determining algorithms, are not employed. Instead, the addressing method disclosed both simplifies the system by reducing hardware requirements and improves the speed of the data packets and reduces packet latency moving down the serial bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.