Adaptive video switching for variable network conditions
US9420347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2012 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64769
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for video playback switching in response to changing network conditions. The method includes accessing a server to retrieve respective index files for a low bit rate version and a high bit rate version of the video file, and instantiating a low bit rate media player and a high bit rate media. Playback of the video file is begun by the high bit rate media player streaming the high bit rate version from the server. Upon an indication of impeded network conditions, a transition point is selected, wherein the transition point indicates where downloading of the high bit rate version stops and where downloading of the low bit rate version begins. The low bit rate media player is then positioned to begin playback at the transition point. Playback of the video file is then switched to the low bit rate player upon encountering the transition point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.