Conferencing bridge
US4797876A · kind A · utility
14Cited by
12References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jul 10, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/568
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A conferencing bridge is provided for an electronic telephone system to support telephone conversations involving three or more parties. The conferencing bridge implements a conferencing algorithm using simple arithmetic operations. The conferencing bridge circuitry implements the algorithm by summing each party's contribution to the conference deriving a grand total, and subtracting each party's contribution from the grand total.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.