High-definition video transmission cascading network cable extender

Abstract

The invention discloses a high-definition video transmission cascading network cable extender. The extender comprises an emitter, at least one cascading unit, and a receiver, wherein the emitter is used for coding a first high-definition video signal input by a high-definition video source into a second high-definition video signal, and coupling the second high-definition video signal to a first network cable; the cascading units are connected in series, an input end of the cascading unit(s) is connected with the emitter through the first network cable, and the cascading unit(s) is / are used for amplifying the second high-definition video signal into a third high-definition video signal; and the receiver is connected with an output end of the cascading unit(s) through a second network cable, and is used for decoding the third high-definition video signal into a fourth high-definition video signal and outputting the fourth high-definition video signal to electronic equipment for playing. The extender provided by the embodiment of the invention has the advantages that after signal amplification through the cascading unit(s), a signal transmission distance can be extended (experiments show that the transmission distance can be extended by 50 meters through each cascading unit), so that ultra-distance high-definition video transmission can be achieved.

Description

technical field [0001] The invention relates to the technical field of high-definition video transmission, in particular to a high-definition transmission cascade network cable extender. Background technique [0002] The HDMI extender is a device used to extend the signal. It is usually used when the long-distance direct connection wire cannot meet the transmission requirements. It is generally designed to ensure long-distance signal transmission without attenuation. [0003] There are two types of HDMI extenders in the related art. One type of HDMI extender transmits analog signals. The transmission distance is said to be 300 meters in the market, but the farthest can reach 250 meters after the current actual measurement. The analog signal is transmitted from the Attenuation will occur from the first meter, and the farther the transmission distance is, the stronger the signal attenuation will be. If the transmitted signal is output to a large screen, the output picture will...

AI Technical Summary

Problems solved by technology

[0003] There are two types of HDMI extenders in the related art. One type of HDMI extender transmits analog signals. The transmission distance is said to be 300 meters in the market, but the farthest can reach 250 meters after current actual measurement. The analog signal is transmitted from the There will be attenuation from the first meter. The farther the transmission distance is, the stronger the signal attenuation will be. If the transmitted signal is output to a large screen, the output picture will not be visible at all.

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