Sound and picture synchronous processing method and display equipment

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

Active Publication Date: 2021-03-05
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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  • Sound and picture synchronous processing method and display equipment
  • Sound and picture synchronous processing method and display equipment
  • Sound and picture synchronous processing method and display equipment

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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 invention discloses a sound and picture synchronous processing method and display equipment, the display equipment comprises a first chip and a second chip, the first chip is provided with a firstvideo processor, a first audio processor and a controller, and the second chip is provided with a second video processor and a second audio processor; the second video processor acquires second imagequality processing time consumption, and the second audio processor acquires second sound processing time consumption; the first video processor acquires first image quality processing time consumption; the first audio processor acquires first sound processing time consumption; and the controller calculates a sound and picture synchronization time difference according to the first picture qualityprocessing time consumption, the second picture quality processing time consumption, the first sound processing time consumption and the second sound processing time consumption, judges whether the sound and picture synchronization time difference is within a threshold range or not, and performs synchronization compensation on the video signal and the audio signal outputted by the second chip ifnot. According to the invention, sound and picture synchronization can be realized, so that the video playing effect of the display device is improved, and particularly, the scheme can be applied to social televisions.

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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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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