Switching system having capability for telecommunication conferences
US4656625A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | May 28, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/561
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A switching system having a capability for telecommunication conferences, including therein, at least, a speech path memory, a mixing circuit, and a feedback circuit. The speech path memory is operative to store therein voice data signals provided from subscribers holding a conference. The mixing circuit is operative to mix two voice data signals. The feedback circuit is operative to feed the thus mixed voice data signals back to the speech path memory to accumulate therein each set of the mixed voice data signals for the subscriber's subscriber except each own voice data signal, whereby the subscribers receive respective accumulated voice data signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.