Method for delivering an audio-video live content in multicast form
US10277957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2015 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jul 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/85406
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For delivering an AV live content, time being divided into transmission periods, the AV live content being divided into chunks, a server performs: obtaining at least one multicast reference stream intended to transport one chunk per transmission period; obtaining at least one multicast side stream intended to transport, for each transmission period, a plurality of chunks which at least includes the same chunk as in each multicast reference stream and at least one preceding chunk; and synchronously transmitting each multicast reference stream and each multicast side stream along the transmission periods. A device willing to receive the AV live content performs: joining one multicast side stream for obtaining at least one chunk transmitted in a first transmission period; and switching to one multicast reference stream for obtaining subsequent chunks which are transmitted from a second transmission period following the first transmission period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.