CN210839812U

CN210839812U - HDMI distributor

Info

Publication number: CN210839812U
Application number: CN201922288972.6U
Authority: CN
Inventors: 周金花
Original assignee: Ask Technology Co ltd
Current assignee: Ask Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-06-23
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a HDMI distributor, including HDMI input module, multichannel HDMI output module, power supply module, central processing unit and EDID management module all the way, HDMI input module, multichannel HDMI output module all the way, EDID management module all is connected with the central processing unit electricity, and power supply module is HDMI input module, multichannel HDMI output module all the way, and EDID management module all is connected the power supply with the central processing unit electricity. The utility model discloses carry out a plurality of allocations with advanced high definition multimedia technology HDMI signal all the way, transmit respectively for eight display device to support current highest video resolution 4K 60Hz scaler Down function, with the mesh ground that reaches compatible more display device.

Description

HDMI distributor

Technical Field

The utility model relates to a multichannel HDMI high definition distribution output transmission equipment field, concretely relates to HDMI distributor.

Background

In television and other display device presentations, many display devices may need to be presented simultaneously. And display devices of different brands and different resolutions can be presented simultaneously. Currently, a dispenser on the market has the lowest resolution to output images for each display device.

For a high-definition television, the advantage of high definition cannot be realized, and if a high-resolution image needs to be output, a low-resolution display device needs to be removed. The demonstration is completed and then accessed, so the operation is quite complicated.

The HDMI products are increasingly applied in the current market, and HDMI multiplex transmission products are also appeared one after another and are in a variety. And the HDMI of 2.0 editions that uses on the existing market advances many dispensers and the utility model discloses there is similar part, but these products do not support resolution Scaler Down function, what the distributor input was connect is the 4K signal source, and output signal can not satisfy at this moment the rear end has connect display device outputs such as 1.3 editions, 1.4 editions, 2.0 editions simultaneously. The user has no way to show the best effect to the guest during the demonstration process, so that the best promotion effect cannot be achieved.

Disclosure of Invention

The utility model aims to solve the technical problem that a HDMI distributor is provided to solve the problem of proposing among the above-mentioned background art.

The utility model discloses a realize through following technical scheme: an HDMI distributor comprises a path of HDMI input module, a plurality of paths of HDMI output modules, a power supply module, a central processing unit and an EDID management module, wherein the path of HDMI input module and the plurality of paths of HDMI output modules are all electrically connected with the central processing unit;

the signals are transmitted to the central processing unit and the EDID management module through the HDMI input module and processed until the processed signals are output through the HDMI output module.

As a preferred technical scheme, the power supply module consists of a direct current module converting 5V to 1.0V, a direct current module converting 5V to 1.05V, a direct current module converting 5V to 3.3V and a plurality of groups of DC-DC conversion modules;

the direct current module for converting 5V into 3.3V comprises a power supply module with the model number of FT840, a peripheral circuit connected with the power supply module, an IT6664 and an MCU for power supply;

the 5V to 1.0V DC module comprises a power supply module of type FT840 and is supplied with IT 6664.

As a preferred technical scheme, the central processing unit comprises a group of IT6664 and connected peripheral circuits.

As a preferred technical solution, the HDMI input module includes an HDMI input terminal and an allocation unit connected to the HDMI input terminal.

As a preferred technical solution, the HDMI output module includes an HDMI output terminal and an ESD protection device of a type Rclamp0524 connected to the HDMI output terminal.

The utility model has the advantages that:

1. scaler Down video signal processing techniques;

2. by adopting the HDMI signal shunting and signal amplification processing technology, one path of TMDS signal is distributed into a plurality of paths of TMDS signals to be displayed on display equipment or a projector supporting the HDMI signal, so that the effect of no signal attenuation is achieved;

3. the anti-interference performance of the display device is enhanced by the transmission of differential signals, and the problems of poor transmission interference performance, display on a plurality of display devices and the like are solved;

4. the latest decryption technology is adopted to process the input signals, so that the compatibility of the output signals is improved, and the signals of different channels are not influenced by the interference of other channels and connecting equipment; the distributed output signals can be compatible with all connected displays;

5. each path of signal is isolated and processed by adopting the large-bandwidth processing circuit and the large-current driving circuit, so that signals of different channels are not influenced by interference of other channels and connecting equipment, and the compatibility of products is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the system of the present invention;

fig. 2 is a circuit diagram of the HDMI output module of the present invention;

fig. 3 is a circuit diagram of an EDID module according to the present invention;

fig. 4 is a circuit diagram of the cpu of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, the utility model discloses a HDMI distributor, including HDMI input module, multichannel HDMI output module, power supply module, central processing unit and EDID management module all the way, HDMI input module, multichannel HDMI output module all the way, EDID management module all is connected with central processing unit electricity, power supply module is HDMI input module, multichannel HDMI output module all the way, EDID management module all is connected with central processing unit electricity and supplies power;

In this embodiment, the power supply module is composed of a 5V to 1.0V DC module, a 5V to 1.05V DC module, a 5V to 3.3V DC module, and a plurality of DC-DC conversion modules;

In this embodiment, the central processing unit includes a set of IT6664 and connected peripheral circuits.

In this embodiment, the HDMI input module includes an HDMI input terminal and an allocation unit connected to the HDMI input terminal.

In this embodiment, the HDMI output module includes an HDMI output terminal and an ESD protection device of a type Rclamp0524 connected to the HDMI output terminal.

When the high-definition distributor works, firstly, a high-definition signal source is connected with the input port of the distributor through an HDMI cable, then the output end of the distributor is connected with a display through the HDMI cable, then a 5V power supply is connected with the distributor, and a power switch is turned on, so that one path of 4K and 2K signal can be connected to a plurality of display devices supporting different resolutions for display.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An HDMI distributor, comprising: the system comprises a path of HDMI input module, a plurality of paths of HDMI output modules, a power supply module, a central processing unit, an EDID management module, a path of HDMI input module and a plurality of paths of HDMI output modules, wherein the EDID management module is electrically connected with the central processing unit;

the signal is transmitted to the central processing unit and the EDID management module through the HDMI input module for processing until the processed signal is output through the HDMI output module.

2. The HDMI dispenser of claim 1, wherein: the power supply module consists of a direct current module for converting 5V into 1.0V, a direct current module for converting 5V into 1.05V, a direct current module for converting 5V into 3.3V and a plurality of groups of DC-DC conversion modules;

3. The HDMI dispenser of claim 1, wherein: the central processor includes a set of IT6664 and connected peripheral circuits.

4. The HDMI dispenser of claim 1, wherein: the HDMI input module includes an HDMI input terminal and an allocation unit connected to the HDMI input terminal.

5. The HDMI dispenser of claim 1, wherein: the HDMI output module comprises an HDMI output terminal and an ESD protection device which is connected with the HDMI output terminal and has the model number Rclamp 0524.