Multi-stage switching network in a telecommunication switching system
US4095055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1976 |
| Grant date | Jun 13, 1978 |
| Priority date | — |
| Expiry date | Nov 11, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0407
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-stage switching network in a telecommunication switching system includes a virtual link frame having fixedly closed virtual switches which are inserted according to the switching system size required by the application range of telephone traffic into a specified intermediate stage of the multi-stage switching network to permit the switching network of large or upper size to be degenerated to a switching network with smaller numbers of stages by degeneratively inducing a partial path structure from the path structure of the upper sized switching network having a great traffic capacity. The switching network with smaller numbers of stages can be incremented to a switching network of larger or upper size according to the switching system size. In either case, the multi-stage switching network can be controlled by the same control circuit and the same control program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.