Methods of controlling video signals in a video conference
US7007098B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2000 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Sep 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling video signals in a multi-participant video conference involves assessing the level of video signal required from each participant to mix the desired broadcast video signals, and using the result of this assessment to dynamically control the video output from the endpoints of the conference participants. The assessment of the required level of video signal preferably utilizes an audio mixing algorithm, such that the video outputs of those participants whose audio signals are currently being discarded in the audio mixing process are switched off at the endpoints, or are transmitted in a lower bandwidth format, thereby reducing the overall bandwidth requirements of the conference and reducing processor resources to mix the broadcast video signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.