Two way communication using light links
US7193661B2 · kind B2 · utility
25Cited by
23References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Two-way communications between a video system and a control device is disclosed. The communications links comprise visible light, IR light, or a combination of visible and IR light. The communications link provide a convenient route to capture data or lock system features or various combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.