Optical wireless communications system
US7356261B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2004 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Aug 22, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical wireless communications system has a first optical wireless communications apparatus for transmitting a pilot beam and a second optical wireless communications apparatus for receiving the pilot beam to have a match for an optical axis of the first optical wireless communications apparatus and another optical axis of the second optical wireless communications apparatus. The first optical wireless communications apparatus has a modulator for modulating the pilot beam with a specific signal. The second optical wireless communications apparatus has a demodulator for demodulating the modulated and transmitted pilot beam to reproduce the specific signal and sending the reproduced specific signal to at least either the second optical wireless communications apparatus or an apparatus connected to the second optical wireless communications apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.