Laser communication system
US4662004A · kind A · utility
18Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1984 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Dec 17, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1121
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An atmospheric optical communications link which compensates for variations caused by changes in the atmospheric transmission medium. The signal carrying light link includes a separate control laser at the receiver which communicates back to the primary transmitter to control it so that the primary beam light intensity is adjusted to compensate for atmospheric conditions. The reverse laser system is also used to remotely operate the control system at the transmitter and for other communication from the receiver station to the transmitter station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.