Systems and methods for implementing internet video conferencing using standard phone calls
US6750897B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2002 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Feb 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video conferencing system (100) includes a switch (125), a server (140), a telephone device (152), and a node (102) in a packet-switched network (135). The switch (125) establishes a circuit-switched connection between a calling party number and a called party number. The server (140) associates first and second network addresses in a packet-switched network (135) with each of the called party and calling party numbers. The telephone device (152) transmits audio data via the circuit-switched connection. The node (102) in the packet-switched network (135) transmits packetized video between the first and second network addresses responsive to establishment of the circuit-switched connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.