Media file format to support switching between multiple timeline-altered media streams
US7302490B1 · kind B1 · utility
87Cited by
111References
8Claims
0Family size
Assignee
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Key dates
| Filing date | May 3, 2000 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | May 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99931
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a networked client/server system, media content is streamed from a server computer to a client computer. A media file format is used to store data for multiple timeline-altered streams that provides support for switching between the different timeline-altered streams during their presentation. According to one embodiment, a time code stream includes multiple data objects mapping corresponding timeline-altered stream data units to primary stream presentation times, and an index table mapping primary stream presentation times to timeline-altered stream byte offsets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.