PCM switching system for wide and narrow band signals
US4257119A · kind A · utility
39Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1978 |
| Grant date | Mar 17, 1981 |
| Priority date | — |
| Expiry date | Dec 29, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A common control telecommunications switching system capable of efficiently handling both narrow band and wide band information. The system uses a hybrid digital network having a time division section for switching narrow band signals and a space division section for switching wide band signals. Both networks include connection memories accessible by the central processor for writing connections therein to set up or take down communication paths between selected access ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.