Synchronizing playback of segmented video content across multiple video playback devices
US10021438B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/668
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and devices for synchronizing playback of segmented video content across multiple video playback devices are described herein. In example implementations, a video server provides, to one or more playback devices, an age of a playlist for the video content. A particular playback device receives fragments of the video content from the video server and schedules the video fragments for playback. If the actual playback time of a video fragment is not aligned with its scheduled playback time, then video fragment is modified, e.g., by adding video frames to or removing video frames from the video fragment. Modification of the video fragments continues until the actual playback times of the video fragments synchronize with their respective scheduled playback times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.