Method for reducing channel change startup delays for multicast digital video streams
US8218654B2 · kind B2 · utility
11Cited by
89References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2006 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Apr 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6405
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for reducing channel change startup delays for multicast digital video streams are described. Packets of a multicast digital video transport stream having a plurality of normal Group of Pictures are received. Further, a channel change request is received and a speed-up Group of Pictures is inserted in the stream in response to the channel change request. In one embodiment, video stream specific information is also inserted in the stream. The packets are processed and transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.