Technique for providing virtual N-way video conferencing to IP videophones
US7701930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2005 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Dec 29, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/147
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A technique and method provide virtual N-way video conferencing to participants having IP stations/videophones, which have limited processing capacity, by auto-selecting a limited subset of the participants for video display and restricting the rest of the participants to voice-only mode which requires reduced processing capability. The method uses a virtual n-way conferencing module (VNCM) to provide the video conferencing, and an auto caller select module (ACSM) for causing selective video display. Some of the participants might have VoIP terminals instead of IP videophones. The invention includes a technique, e.g., by using a video transmission control module (VTCM) for reducing the bandwidth requirement of IP videophones by signaling the participants in voice-only mode not to transmit the video information in bandwidth-constrained situations. Also taught herein is an article comprising a storage medium having instructions thereon which when executed by a computing platform will result in execution of the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.