Method and device for outputting signals by multiple screen processors

An output signal and processor technology, applied in the field of multi-screen processor output signals, can solve problems such as being susceptible to external interference, difficult wiring, and out-of-sync images, so as to achieve a system that is not easily disturbed, easy to receive and process, and eliminates phase differences Effect

Inactive Publication Date: 2012-10-03
GUANGDONG VTRON TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, there is a delay when the field synchronization signal is transmitted through cables, especially for long-distance transmission, and the delay phenomenon is serious; It will cause a large phase difference due to delay, which will cause the pictures output by each screen processor to be out of sync;
[0005] Second, due to the introduction of additional cables for transmission, it will cause wiring difficulties; lack of flexibility;
[0006] Third, when the field synchronization signal is stored and transmitted through the cable, it is easily disturbed by the outside world, and the cable itself will also damage the signal, making it difficult for the screen processors to receive the synchronization signal

Method used

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  • Method and device for outputting signals by multiple screen processors
  • Method and device for outputting signals by multiple screen processors
  • Method and device for outputting signals by multiple screen processors

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Embodiment Construction

[0035] In order to facilitate understanding of the present invention, the following will be described in conjunction with the accompanying drawings.

[0036] This invention proposes a method for multi-screen processor output signal, please refer to figure 1 , including the steps:

[0037] S101, modulating the wireless signal;

[0038] The wireless signal is modulated according to the synchronous signal; wherein, the frequency of the synchronous signal is the same as the frequency of the field synchronous signal of the video signal of the screen processor.

[0039] S102, transmitting wireless signals;

[0040] Transmits a wireless signal to each screen processor.

[0041] S103. Receive a wireless signal;

[0042] Each screen processor receives wireless signals.

[0043] S104. Synchronously output the video signal according to the wireless signal.

[0044] The synchronous signal is demodulated from the wireless signal, and the video signal is synchronously output according...

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Abstract

The invention discloses a method for outputting signals by multiple screen processors. The method comprises the following steps of: according to synchronizing signals, modulating wireless signals, wherein the frequencies of the synchronizing signals are the same with those of field synchronizing signals of video signals of the screen processors; transmitting the wireless signal to each screen processor; receiving the wireless signal by each screen processor; according to the synchronizing signals demodulated from the wireless signals, synchronously outputting the video signals. The invention also discloses a device for outputting the signals by multiple screen processors. According to the method and the device for outputting the signals by multiple screen processors, each screen processor can correctly receive the synchronizing signals; the synchronous output of the video signals of the screen processors is implemented; and the configuration flexibility of a multiscreen display system is improved.

Description

technical field [0001] The invention relates to the field of multi-screen splicing display, in particular to a method and a device for outputting signals from a multi-screen processor. Background technique [0002] The current multi-screen image processors need to use the expansion screen roaming between multiple multi-screen processors to display when realizing the super large screen splicing display. In order to ensure the synchronization of the display screens of each processor, each processor needs Provide a field synchronization signal with the same frequency as the video signal at 50HZ or 60HZ as a synchronization signal; the current implementation method is to introduce the field synchronization to each processor in the form of a daisy chain through a cable, that is, through a cable The synchronization signal is introduced into one of the screen processors, and after shaping and driving, it is then introduced into the other screen processor until all processors get th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/12G09G5/14H04N7/56
Inventor 陈羽杨灯
Owner GUANGDONG VTRON TECH CO LTD
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