Differential audio-video synchronization
US10063907B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2017 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Jun 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4302
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques of audio-video synchronization that can be performed on audio and video streams are described. In one scenario, a processor can receive audio-video information comprising a video stream and an audio stream. Each of the video and audio streams can include one or more of: a compressed stream; and a decoded stream. A region of motion in the video stream can be determined based on a property of the video stream. A video signal can be generated based on the determined region of motion. Also, a relative delay between the streams can be determined based, at least in part, on the generated video signal. A delay value associated with one or more of the audio and video streams may be adjusted to assist with synchronizing the audio and video streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.