PBX system with assignable relationships between network loops and ports
US4961187A · kind A · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Aug 11, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A peripheral controller for a PBX system accepts PCM data from a plurality of channels. The channels may be processed in time and space switches of more than one network loop. A channel-merge device merges the PCM data into a combined PCM data stream for connection to a time switch. The time switch is controlled by a connection memory to direct data on specific channels to specific terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.