Optical communication equipment and optical communication method
US5212577A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1992 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Aug 4, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/50
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical communication terminal detects an unused first wavelength in a wavelength range in response to a transmission request and transmits a call signal to a transmission destination using the first wavelength. An acknowledgement signal from the destination is detected in a portion of the wavelength range not including the first wavelength. When a call signal addressed to the terminal from another terminal is detected thereat and the terminal is ready for communication, an unused second wavelength in the wavelength range is detected and an acknowledgement signal is sent using the second wavelength in response to the call signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.