Multiple independent/dependent monochromatic light frequency fiber optic communication system and method
US5796502A · kind A · utility
Inventor
Key dates
| Filing date | Jan 6, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jan 6, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0283
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical fiber communication system has an optical fiber extending along a communication path between spaced stations. The stations include transmitting and receiving units, or combined transmitter and receiver units at each station. Each transmitter unit is designed to produce information signals on one or more different topics, and is associated with one light source for each topic of information assigned to that station. The light sources produce output light signals modulated by the information signals, and these light signals are coupled to the optical fiber. The light sources are of different frequencies, and each topic of information to be communicated is assigned to a predetermined light frequency, so that all light signals at a certain frequency carry only information on the one topic assigned to that frequency. Each receiver unit includes a filter for filtering out signals at one or more of the frequencies and a decoder for extracting the information from the filtered signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.