Method and apparatus for communication using pulse-width-modulated visible light
US7570246B2 · kind B2 · utility
114Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | May 24, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1141
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A visible light communications transmitter combines a modulated carrier signal with a pulse from a pulse generator. The carrier signal is modulated according to data read from a buffer during the pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.