Fast channel change companion stream solution with bandwidth optimization
US9137477B2 · kind B2 · utility
1Cited by
0References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 26, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Apr 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention concerns a method for reducing the channel change time in a broadcast television system by encoding a termed companion service in addition to the main service. The companion service is sent along with the original service and helps the receiver to retrieve and display the new service more rapidly during the channel change process. With this solution the service is encoded and streamed in its original format, plus encoded and streamed in a low resolution format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.