Visible light communication via solid state lighting devices
US10142018B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Nov 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/116
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A solid-state lighting fixture includes a first group of solid-state light elements, a second group of solid-state light elements, and a light control module. The first group of solid-state light elements is configured to emit visible light at a first wavelength. The second group of solid-state light elements is configured to emit light at a second wavelength, which is different from the first wavelength. The light control module is configured to modulate the light emitted from the first group of solid-state light elements and modulate the light emitted from the second group of solid-state light elements, respectively, such that the modulation pattern of the emitted light from each one of the first group of solid-state light elements and the second group of solid-state light elements communicates a first subset of data and a second subset of data, respectively, while being undetectable to the human eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.