Optical communication system utilizing light emitting diode
US4207459A · kind A · utility
7Cited by
4References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1977 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Sep 9, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/58
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical communication system, wherein light intensity modulation with no carrier is performed using a light emitting diode with linear relation of the drive signal current vs. optical output power over a range which changes with frequency of the drive signal, the input signal is modulated for relatively larger amplification of frequencies higher than a predetermined frequency, above the thermal response frequency of the light emitting diode, than for frequencies lower than the predetermined frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.