Method for synchronizing audio and video and related apparatus
US11457266B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2020 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Jul 16, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio and video synchronization method is provided, which includes the following operations: obtaining a first presentation time stamp (PTS) of a first video data and a second PTS of a second video data; selecting a master PTS corresponding to an audio data or to a vertical synchronization (Vsync) pulse; calculating a first timestamp difference value between the first PTS and the master PTS, and calculating a second timestamp difference value between the second PTS and the master PTS; and selectively outputting either the first video data or the second video data according to the first timestamp difference value, the second timestamp difference value, and whether the first video data has been outputted for a predetermined number of times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.