Media stream synchronization
US7088774B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Mar 31, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4788
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of synchronizing a media stream involves determining urgency measures and favorability measures. An urgency measure relates to a degree by which a media stream is currently out of synchronization. A favorability measure indicates the disruptiveness or likely noticeability altering the media stream at a particular temporal point. As a media stream becomes more and more out of synchronization, the urgency factor increases, and the system looks for places in the media stream at which units such as video frames or audio samples can be added or subtracted to re-achieve synchronization. When the urgency measure is at lower values, the system selects only points in the media stream having relatively high favorability measures. When the urgency measure increases, the system selects points having relatively lower favorability measures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.