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Distributed HDMI matrix equipment

A distributed and matrix technology, applied in TV, data exchange through path configuration, color TV parts, etc., can solve the problems that HDMI cables are short and cannot meet long-distance wiring, and control data transmission cannot be realized. Long-distance transmission, best display effect, and convenient wiring effect

Pending Publication Date: 2021-01-05
ANFU COUNTY HAINENG INDAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The existing HDMI matrix device is an integrated device, which also has the problem of being unable to meet long-distance wiring due to the short HDMI cable
Although the above-mentioned network cable extension transmission scheme can realize long-distance transmission of media data, in addition to media data, control data is also involved in the application of HDMI matrix equipment, and a single network cable has only four pairs of differential lines, and all four pairs of differential lines are used. Transmission of media data, so the transmission of control data cannot be realized

Method used

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] It should be pointed out that "first", "second", "third", "fourth" and so on in this application are only used to distinguish the same terms, and do not have other meanings such as order, size, primary and secondary. The media data in this application may be video, audio or a combination of both.

[0037] Please refer to figure 1 , the HDMI matrix device includes a host 100 and multiple slaves 300, and each of the multiple slaves 300 is connected to the host 100 through a network cable 200 to form a distributed HDMI matrix device.

[0038] The host 100 includes a plurality of HDMI input ports 110, a crossover switch 130 and a plurality of host network cable ports 150, the multiple HDMI input ports 110 are respectively connected to the crossover switch 130 through an HDMI decoder 120, and the plurality of host network cable ports 150 are respecti...

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Abstract

The invention discloses distributed HDMI matrix equipment which comprises a host and a plurality of slaves, the slaves are connected to the host through network cables respectively, and the host comprises: a first network transformer used for loading media data to a network cable port of the host, and a control data receiving unit which is connected to a center tap of a first coil of the first network transformer. Each slave comprises: a second network transformer used for receiving media data from a slave network cable port; and a control data sending unit which is connected to a center tap of a first coil of the second network transformer. The HDMI matrix equipment provided by the invention is formed by connecting the host and the plurality of slaves through the network cables, and can realize long-distance transmission of HDMI signals. Media data are transmitted by using differential mode voltage, control data are transmitted by using common mode voltage, and each slave machine andthe host machine are connected by using only one network cable, so that wiring is greatly facilitated, and the cost is saved.

Description

technical field [0001] The invention relates to audio and video signal transmission equipment, in particular to a distributed HDMI matrix equipment. Background technique [0002] Due to the outstanding advantages of HDMI (High Definition Multimedia Interface, high-definition multimedia interface) technology in transmitting digital audio-visual signals, the HDMI interface has been widely used in the fields of home appliances and computers. However, HDMI signal attenuation is serious, resulting in short HDMI cable and high cost, which cannot meet long-distance wiring. [0003] In order to solve the problem of short transmission distance of the HDMI cable, people have proposed a solution to extend the transmission through the network cable, specifically: by converting the HMDI signal into a signal suitable for transmission on the network cable, after using the network cable to transmit, and then converting it to an HMDI signal output, Such as the patent document of notificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/268H04L12/46H04L29/06H04N5/232H04N5/63H04N5/765
CPCH04N5/268H04N5/765H04N5/63H04L63/0218H04L12/46H04N23/632
Inventor 周洪亮徐前
Owner ANFU COUNTY HAINENG INDAL