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Video signal transmission method and device

A technology of video signal and transmission method, applied in the field of splicing wall, can solve the problem of wasting bandwidth, etc., and achieve the effect of improving bandwidth utilization rate

Inactive Publication Date: 2014-02-26
GUANGDONG VTRON TECH CO LTD
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  • Description
  • Claims
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Problems solved by technology

However, the signal loop connection adopts the SERDES (SERializer / DESerializer, serializer / deserializer) protocol, and the bandwidth is above 10G; while the general video signal bandwidth is about 2G, so it is a great waste to use one cable to transmit one video signal Bandwidth

Method used

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  • Video signal transmission method and device
  • Video signal transmission method and device
  • Video signal transmission method and device

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] see figure 2 Shown, a kind of video signal transmission method comprises the following steps:

[0025] Step S101, when the access video signal is received, judge whether the display unit already has a loop input signal; if so, enter step S102, otherwise, it means that there is no other video signal except the access video signal in the current display unit , at this time, the access video signal can still be transmitted according to the method of transmitting one video signal by one cable in the traditional solution.

[0026] Step S102, if there is a loop input signal in the display unit ...

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Abstract

The invention provides a video signal transmission method and device. The method includes the first step of judging whether looping-in input signals exist in a display unit when video access signals are received, the second step of combining the received video access signals and the looping-in input signals if the looping-in input signals exist in the display unit, the third step of detecting the path number of the combined video signals and carrying out partition on a whole data transmission cycle according to the path number of the video signals to obtain minor cycles in the corresponding path number, and the fourth step of respectively transmitting corresponding video signals in the minor cycles. Through the video signal transmission method and device, transmitting multi-path video signals in a cable is achieved, and the bandwidth utilization rate in the video signal transmitting process is effectively improved.

Description

technical field [0001] The present invention relates to the technical field of splicing walls, in particular to a video signal transmission method and a video signal transmission device. Background technique [0002] With the development of video wall display technology, the application of video wall technology is becoming more and more extensive. A splicing wall system is usually spliced ​​by multiple display units, and a control host sends control commands to the multiple display units to control the image display of the entire splicing wall. [0003] In traditional video splicing walls, in order to open multi-screen windows, such as figure 1 As shown, the signal source needs to be connected through a cable loop, and the video signal is transmitted by transmitting one video signal in one cable. However, the signal loop connection adopts the SERDES (SERializer / DESerializer, serializer / deserializer) protocol, and the bandwidth is above 10G; while the general video signal b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18
Inventor 张涛
Owner GUANGDONG VTRON TECH CO LTD
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