Gateway multi-view video stream processing for second-screen content overlay
US9628839B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2015 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8451
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Particular embodiments use a multi-view coding (MVC) extension to provide second-screen content along with the first-screen content. In one embodiment, a head-end multiplexes the first-screen content with the second-screen content into a single content stream. The second-screen content is added to the video stream according to the MVC extension requirements. At the user end, such as at a gateway, instead of sending the first-screen content and second-screen content to the first-screen device, the gateway de-multiplexes the first-screen content and the second-screen content. The gateway can then send the first-screen content to the first-screen device while caching the second-screen content. When the gateway determines that the second-screen content should be displayed on the second-screen device, the gateway can send the second-screen content to the second-screen device for display on the second-screen of the second-screen device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.