Switching system for digital transmission network
US4774703A · kind A · utility
20Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1985 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Nov 29, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A switching system is provided for application to a multichannel digital transmission network. It allows a defective channel to be replaced by an emergency channel without the user of the channel being aware of the replacement. On the emission side as well as on the reception side, switching and processing take place of bipolar signals, for example a High Density Bipolar 3 code, which allows the path doubled or extended so as to increase the operating safety of the network and provide greater flexibility in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.