Large capacity local access network
US5764821A · kind A · utility
42Cited by
19References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Nov 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0201
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for the transmission of signals over a large capacity local access network which provides users a dedicated two-way link to a central office The network is built along a single optical fiber ring. Connection to the fiber is obtained by combining time and frequency division multiplexing techniques and by using an optical channel-dropping filter. Optical signals are generated at the central office. The users have a simple device integrated with the channel-dropping filter to receive and transmit data without the use of an optical source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.