Dual rail time and control unit for a duplex T-S-T-digital switching system
US4402077A · kind A · utility
4Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1980 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Dec 23, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A duplex time-space-time switching network is shown in which there is a multiple crossover of voice information from one rail to another rail in a large digital switching system. The time and control unit is divided into two rails both incoming and outgoing. Each rail multiplexes two 193 channel streams into one 386 channel stream of information. These two rails crossover in the originating and terminating time switching stages but remain segregated throughout the space switching stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.