Data communication unit using light-emitting diode for data communication, and electronic device
US7978984B2 · kind B2 · utility
2Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2006 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Nov 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/502
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention enables device downsizing by utilizing a light-emitting diode as a plurality of interfaces. A light-emitting diode 11 of a data communication unit using a light-emitting diode for data communication outputs light when a current flows therethrough. A transmission circuit 13 applies a forward bias to the light-emitting diode 11 based on transmission data. A separation circuit 14 outputs a voltage that changes according to a voltage which is generated in the light-emitting diode 11 when the transmission circuit 13 does not apply the forward bias to the light-emitting diode 11.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.