Method of decoding an incoming audio/video stream
US11756590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Dec 12, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/611
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of decoding an incoming audio/video stream received by a decoder box that is connected to audio playback equipment and to video playback equipment, the method comprising the steps of evaluating an audio latency and a video latency; if the audio (or respectively video) latency is greater than the video (or resp. audio) latency, testing a first condition to ensure that the time difference (Δt_a, Δt_v) between the presentation time stamp of the audio (or resp. video) samples and the reference clock signal is sufficient, and if the first condition is satisfied, acting, when decoding the audio (or resp. video), to decrease the presentation time stamp of the audio (or resp. video) samples in order to advance playback of the audio (or resp. video) samples, thereby compensating at least in part the latency difference between the audio (or resp. video) latency and the video (or resp. audio) latency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.