Video streaming
US8125901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Feb 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The bitrate for any practical video streaming system will vary considerably as a function of the difficulty of encoding the sequence in question. This variation is even more apparent when comparing different video clips of different genres for example where sports clips might require a higher average bitrate and fluctuate more due to the high activity of typical scenes, whereas a news report clip might require a much lower bitrate and be relatively static. As such, to deliver video streams at a constant quality to users sharing a contended network, a constant bandwidth method is not efficient to use across all the streams. The bandwidth allocated to each stream must be allowed to dynamically vary in time in accordance with the precise demands of the video being streamed at that time and also be within any network bandwidth constraints. The present invention defines such a method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.