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Synchronous control method and device of video streams

A technology for synchronous control and video streaming, which is applied in the field of video transmission and can solve problems such as difficulty in synchronizing video streams with dual control chips

Active Publication Date: 2015-02-04
ANALOGIX CHINA SEMICON +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a method and device for synchronous control of video streams to solve the problem of difficult synchronization of video streams with dual control chips in the prior art

Method used

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  • Synchronous control method and device of video streams
  • Synchronous control method and device of video streams

Examples

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Embodiment 1

[0029]According to the embodiment of the present invention, a method embodiment that can be implemented or executed by the device embodiment of the present application is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a program such as a set of computer-executable instructions computer system, and although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0030] According to an embodiment of the present invention, a video stream synchronization control method is provided, and the video stream synchronization control method provided by the embodiment of the present invention will be specifically introduced below.

[0031] In the embodiment of the present invention, the synchronization control method of the above-mentioned video stream can be applied to figure 1 The hardware environment diagram com...

Embodiment 2

[0053] According to an embodiment of the present invention, there is also provided a video stream synchronization control device for implementing the video stream synchronization control method described above. The stream synchronization control method, the following is a specific introduction to the process video stream synchronization control device provided by the embodiment of the present invention:

[0054] Figure 8 is a schematic diagram of a video stream synchronization control device according to an embodiment of the present invention, such as Figure 8 As shown, the video stream synchronization control device mainly includes a control unit 10 and a sending unit 20, wherein:

[0055] The control unit 10 is used to control the main control chip and the slave control chip to perform frame synchronization and line synchronization sequentially, wherein the master control chip and the slave control chip constitute a timing control chip of the video stream.

[0056] The s...

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PUM

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Abstract

The invention discloses a synchronous control method and device of video streams. The synchronous control method of the video streams includes controlling a master control chip and a slave control chip to be subjected to frame and line synchronization in sequence, wherein the master control chip and the slave control chip constitute a time sequence control chip of the video streams; transmitting cached line data of the video streams to corresponding display units by the master control chip and the slave control chip after once line synchronization of the master control chip and the slave control chip is completed. By the aid of the synchronous control method and device, the problem that the video streams are difficult to synchronize in double control chips in the prior art is solved, and on the basis of high-speed transmission of the video stream signals, signal transmission integrity is guaranteed, and display effect of the video streams is optimized.

Description

technical field [0001] The present invention relates to the field of video transmission, in particular to a video stream synchronization control method and device. Background technique [0002] In a large-size LCD display, the distance between the video timing control chip and the driving chips on the left and right sides of the screen is very large, resulting in a long connection from the timing control chip to the driving chips on the left and right sides of the screen, which affects the integrity of high-speed transmission signals. Based on the above situation, at present, large-size display screens generally use two timing control chips to control a screen strategy, that is, the left and right chips control half of the display screen, but the left and right chips each control half of the display screen. There is a problem that the video streams of the two timing control chips are difficult to synchronize. [0003] Aiming at the problem in the related art that the video ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/242H04N21/43
CPCH04N21/242H04N21/4302
Inventor 谢青青崔玥
Owner ANALOGIX CHINA SEMICON
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