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SamsungPatent applicationAudio & voiceInterest 6/10

Samsung patents method to fix audio-video lag in wireless devices

Samsung has filed a patent for a method that keeps sound and picture in sync when data is sent wirelessly between two devices. The system compares labels on video and audio frames; if they match, it plays both at normal speed. If the audio label is ahead, it plays the audio slightly faster to catch up to the video without changing the video speed.

Why it mattersThis could improve the viewing experience for users of wireless speakers or headphones by reducing the common issue of lip-sync delays.

In the filing’s own words

A method of synchronizing audio and video comprises receiving, by a first electronic device, video frame data and audio frame data from a second electronic device through wireless communication; playing, by the first electronic device, video and audio at a first playback speed based on an index of the video frame data being the same as an index of the audio frame data; and playing, by the first electronic device, the audio at a second playback speed faster than the first playback speed while maintaining the playback speed of the video at the first playback speed, based on the index of the video frame data being different from the index of the audio frame data.

What exactly they claim (claim 1)

1. A method of synchronizing audio and video, the method comprising: receiving, by a first electronic device, video frame data and audio frame data from a second electronic device through wireless communication; playing, by the first electronic device, video and audio at a first playback speed based on an index of the video frame data being the same as an index of the audio frame data; and playing, by the first electronic device, the audio at a second playback speed faster than the first playback speed while maintaining the playback speed of the video at the first playback speed, based on the index of the video frame data being different from the index of the audio frame data.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
METHOD OF SYNCHRONIZING AUDIO AND VIDEO AND ELECTRONIC DEVICE
Publication number
US20260292289A1
Application number
19685536
Filed
May 22, 2026
Published
Sep 24, 2026
Inventors
2
Claims
15

Classified under

H04N 21/43072 Electricity & electronicsH04N 21/4333 Electricity & electronicsH04N 21/43637 Electricity & electronicsH04N 21/439 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.