Resource-efficient media streaming to heterogeneous clients
US7657651B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A resource-efficient live streaming system includes a broadcaster and a streaming server. The broadcaster receives a live feed and broadcasts a media stream to the streaming server containing several descriptions of the live feed along with control information. The broadcaster includes a stream thinner that implements a pruning algorithm. If descriptions from different streams are similar enough, one or more of them may be discarded without penalizing the quality of service perceived by the receivers. The streaming server assembles compressed data units into streams according to the control information from the broadcaster. The streaming server may also gather client feedback in order to estimate the status of the transmission channels and forwards the information to the broadcaster. The streaming server builds and streams media information to clients according to user preferences and receiver capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.