System and method of providing video content
US9661358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2014 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | May 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8453
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system includes a processor and a memory. The memory stores instructions that, when executed by the processor, cause the processor to perform operations including sending a primary multicast video stream and a secondary multicast video stream to a media device. The secondary multicast video stream is limited to intra-coded frames (I-frames) extracted from the primary multicast video stream. Transmission of each intra-coded frame (I-frame) of the secondary multicast video stream is delayed with respect to transmission of a corresponding I-frame of the primary multicast video stream. The delay is based on an amount of writing time to satisfy a buffer threshold of a video content buffer at the media device to prevent a noticeable time shift of video displayed by the media device when the media device switches from outputting the secondary multicast video stream to outputting the primary multicast video stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.