Synchronizing independent media and data streams using media stream synchronization points
US11876851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Mar 22, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A messaging channel is embedded directly into a media stream. Messages delivered via the embedded messaging channel are extracted at a client media player. According to a variant embodiment, and in lieu of embedding all of the message data in the media stream, only a coordination index is injected, and the message data is sent separately and merged into the media stream downstream (at the client media player) based on the coordination index. In one example embodiment, multiple data streams (each potentially with different content intended for a particular “type” or class of user) are transmitted alongside the video stream in which the coordination index (e.g., a sequence number) has been injected into a video frame. Based on a user's service level, a particular one of the multiple data streams is released when the sequence number appears in the video frame, and the data in that stream is associated with the media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.