Video switching without instantaneous decoder refresh-frames
US8629893B2 · kind B2 · utility
1Cited by
0References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2008 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Mar 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for reducing blurred video caused by intra-coded IDR-frames sent in response to when a destination endpoint in a multipoint videoconference switches to a new video source. An embodiment according to the invention comprises using inter-coded temporal predictive referencing a long term reference frame (LTRF) instead of IDR-frames in a multipoint videoconference system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.