Systems and methods for precision downstream synchronization of content
US11736662B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 20, 2022 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Sep 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for precision downstream synchronization of digital streaming content on an edge content processor in the absence of access to pixel-level data by a video player app operative on the edge content processor are disclosed. Encrypted video streams are synchronized to unencrypted video streams using acquired knowledge of the edge content processor's latency, i.e., the time elapsed between a command to render a video frame and that frame being displayed by the edge content processor. Once a predicted time of display of an encrypted video is obtained by a video player app operative on the edge content processor, a corresponding RGBA video frame is delayed by an amount of time equal to that predicted time minus the edge content processor's latency before a command to render it is issued by the video player app, thereby ensuring both frames are displayed simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.