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Audio and video synchronization processing method and display device

A display device, audio and video synchronization technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problem of out-of-synchronization of sound and picture, achieve the effect of synchronizing audio and video, and improve the effect of video playback

Active Publication Date: 2022-01-28
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a method for synchronizing audio and video and a display device to solve the problem of out-of-sync sound and picture when the existing dual-system display device plays video

Method used

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  • Audio and video synchronization processing method and display device
  • Audio and video synchronization processing method and display device
  • Audio and video synchronization processing method and display device

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Embodiment Construction

[0064] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0065] This application is mainly aimed at the synchronous processing of audio and video of a display device with a first chip (the first hardware system, A chip) and a second chip (the second hardware system, N chip) with a dual system structure. The structure, function and implementation of the display device of the system hardware structure are described in detail.

[0066] For the convenience of users, various external device interfaces are usually provided ...

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Abstract

The present application discloses an audio-video synchronization processing method and a display device. The display device includes a first chip and a second chip, the first chip is provided with a first video processor, a first audio processor and a controller, and the second chip is provided with a The second video processor and the second audio processor; the second video processor obtains the time-consuming processing of the second image quality, and the second audio processor obtains the time-consuming processing of the second sound; the first video processor obtains the first image quality processing Time-consuming; the first audio processor obtains the first sound processing time; the controller calculates according to the first image quality processing time, the second image quality processing time, the first sound processing time, and the second sound processing time Audio-video synchronization time difference, judging whether the audio-video synchronization time difference is within the threshold range, if not, performing synchronous compensation for the video signal and audio signal output by the second chip. This application can realize the synchronization of sound and picture, thereby improving the video playback effect of the display device, especially this solution can be applied to social TV.

Description

technical field [0001] The present application relates to the technical field of display devices, in particular to an audio-video synchronization processing method and a display device. Background technique [0002] figure 1 It is a video processing flowchart of a dual-system display device. The dual system includes a first chip (A chip) and a second chip (N chip). The first chip and the second chip can communicate through an interface module, such as HDMI ( HighDefinition Multimedia Interface, high-definition multimedia interface), network port and USB (Universal SerialBus, universal serial bus), etc. Video signals such as network sources and local media are decoded in the A chip to separate the sound data and image data in the video, and the A chip performs PQ (Picture-Quality, picture quality) processing on the image data in the video, and Perform sound processing on the sound data in the video, and then the first chip transmits the processed image data and sound data t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/43H04N21/41H04N21/4788H04N21/443H04N21/426H04N21/431H04N21/44H04N21/439H04N21/485
CPCH04N21/4307H04N21/4122H04N21/4788H04N21/443H04N21/426H04N21/4312H04N21/44H04N21/439H04N21/4854H04N21/4852H04N21/431H04N21/485H04N21/41H04N21/43
Inventor 陈俊宁李慧娟初德进
Owner HISENSE VISUAL TECH CO LTD
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