Playlists for real-time or near real-time streaming
US8843586B2 · kind B2 · utility
270Cited by
87References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Mar 31, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47217
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A content streaming system, such as an HTTP streaming system, can use a variant audio playlist that identifies different audio playlists, such as one playlist in English and one playlist in Spanish, for the same program such as a video program which is specified by a video playlist which can be separate from the variant audio playlist. A client can use the variant audio playlist to select a particular audio content for the same program, and the particular audio content can be referred to by one URL in the variant audio playlist, among a set of alternative URLs, in the variant audio playlist, for alternative audio content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.