CN216414435U

CN216414435U - Multi-interface input card for video splicer hybrid matrix

Info

Publication number: CN216414435U
Application number: CN202123157162.0U
Authority: CN
Inventors: 朱翠林; 叶晓峰
Original assignee: Suzhou Retina Electronic Technology Co ltd
Current assignee: Suzhou Retina Electronic Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-29
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a multi-interface input card for a mixed matrix of a video splicer, which comprises an input card body and DVI (digital video interface), wherein power interfaces are arranged on two sides of the input card body, and the DVI is arranged in the middle of the input card body. This a many interfaces input card for mixed matrix of video splicer utilizes the pin of an interface of DVI, can draw forth four kinds of different interface signals simultaneously, thereby can support the input signal of the different interfaces of multichannel simultaneously on a slice input card, utilize the physical structure of DVI interface, be connected to different interface circuit with different pins on, the rethread conversion line just can support the input signal of different formats, accomplished to support four kinds of input signal interfaces simultaneously on a kind of interface. Therefore, the applicability of the input board is greatly improved, each input card does not need to be redesigned within time, time and cost are saved, the multi-interface input card supports various interface input signals, the applicability is strong, the structure is simple, and extra cost is not increased.

Description

Multi-interface input card for video splicer hybrid matrix

Technical Field

The utility model relates to the technical field of electronic equipment manufacturing, in particular to a multi-interface input card for a mixed matrix of a video splicer.

Background

A video splicer/hybrid matrix is a device used in the field of security monitoring and display. Generally, an input card, a switch card and an output card are required. The input card is responsible for receiving input signals, the output card is responsible for outputting signals to different display devices, and the switch card is used for switching between the input signals and the output signals. Because the input and output signals have different formats, a video splicer/mixing matrix is often equipped with different input and output interface type cards.

The mixed matrix input card of the video splicer in the market needs to be provided with a plurality of different types of input cards to meet the requirements of different signal access, and the actual cost is high.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a multi-interface input card for a video splicer mixing matrix, which solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a many interfaces input card for mixed matrix of video concatenation ware, includes the input card body and DVI interface, the both sides of the input card body are provided with power source, the DVI interface sets up in the middle part of the input card body.

Preferably, the MSTMVG television processor chip is adopted in the input card body.

Preferably, the input card body supports HDMI, VGA, YPbP and CVBS input interfaces.

Preferably, the DVI interface is provided with twenty-nine pins.

Preferably, the DVI interface can simultaneously extract four different interface signals.

Preferably, the DVI interface signals include four differential pairs of high speed signal lines TMDS DATA +/-, TMDS DATA +/-and TMDS CLK +/-, respectively.

Preferably, the DATA signal lines of the DVI interface are DDC CLK and DDC DATA, respectively.

Preferably, the power line of the power interface is HOT PLUG DETECT.

The utility model provides a multi-interface input card for a mixed matrix of a video splicer, which has the following beneficial effects: this a many interfaces input card for mixed matrix of video splicer utilizes the pin of an interface of DVI, can draw forth four kinds of different interface signals simultaneously, thereby can support the input signal of the different interfaces of multichannel simultaneously on a slice input card, utilize the physical structure of DVI interface, be connected to different interface circuit with different pins on, the rethread conversion line just can support the input signal of different formats, accomplished to support four kinds of input signal interfaces simultaneously on a kind of interface. Therefore, the applicability of the input board is greatly improved, meanwhile, each input card does not need to be redesigned within time, time and cost are saved, the multi-interface input card supports various interface input signals, the applicability is strong, the structure is simple, and extra cost is not increased.

Drawings

FIG. 1 is a schematic diagram of a DVI interface structure of a multi-interface input card for a hybrid matrix of a video splicer according to the present invention;

FIG. 2 is a schematic diagram of a DVI interface pin list of a multi-interface input card for a hybrid matrix of a video splicer in accordance with the present invention;

FIG. 3 is a schematic diagram of a multi-interface input card for a hybrid matrix of a video splicer according to the present invention;

in the figure: 1. an input card body; 2. a power interface; 3. a DVI interface.

Detailed Description

Referring to fig. 1-3, the present invention provides a technical solution: a multi-interface input card for a mixed matrix of a video splicer comprises an input card body 1 and a DVI interface 3, wherein power interfaces 2 are arranged on two sides of the input card body 1, the DVI interface 3 is arranged in the middle of the input card body 1, an MST6M182VG television processor chip is adopted in the input card body 1, the input card body 1 supports HDMI, VGA, YPbP and CVBS input interfaces, the DVI interface 3 is provided with twenty-nine pins, the DVI interface 3 can lead out four different interface signals simultaneously, the signals of the DVI interface 3 comprise four pairs of differential high-speed signal lines which are respectively TMDS DATA0+/-, TMDS DATA1+/-, TMDS DATA2 +/-and TMDS CLK +/-, the DATA signal lines of the DVI interface 3 are respectively DDC CLK and DDC DATA, and the power line of the power interface 2 is HOT PLUG DET;

the specific operation is as follows, the pin of an interface of DVI can be used for leading out four different interface signals simultaneously, so that the input signals of multiple different interfaces can be supported on one input card simultaneously, different pins are connected to different interface circuits by using the physical structure of the DVI interface, and then the input signals of different formats can be supported by the conversion line, so that four input signal interfaces can be supported on one type of interface simultaneously. Therefore, the applicability of the input board is greatly improved, meanwhile, each input card does not need to be redesigned within time, time and cost are saved, the multi-interface input card supports various interface input signals, the applicability is strong, the structure is simple, and extra cost is not increased.

In summary, the multi-interface input card for the hybrid matrix of the video splicer is used, first, as shown in fig. 2, the DVI signal uses

pins

1,2,9,10,17,18,23,24,6,7,14, and 16 of the DVI interface. The DVI signal includes 4 pairs of differential high speed signal lines TMDS DATA0+/-, TMDS DATA1+/-, TMDS DATA2+/-, TMDSLK +/-, and DDC DATA signal lines DDC CLK and DDC DATA, respectively. In addition, a POWER line and a detection line are respectively HOT PLUG DETECT and +5V POWER, if the input signal is an HDMI signal, the HDMI signal can be directly multiplexed with a DVI signal through an HDMI-to-DVI conversion joint, and the connection pins of the HDMI signal and the DVI signal are the same;

then, as shown in fig. 3, the VGA signals are the 8, C1, C2, C3, C4 pins using the DVI interface. The VGA signal includes three-color RED, GREEN and BLUE signals ANALOG RED, ANALOG GREEN, ANALOG BLUE. And line synchronization signal ANALOG HORIZONTAL SYNC and field synchronization signal ANALOG VERTICAL SYNC, if input be YPbPr signal, utilize 13, 20,21 pins of DVI interface, these three pins only use the binary channels to use in DVI, and do not need to use in the input card, so define these three lines as Y respectively, Pb, Pr signal line, this many interfaces input card draws out 4 kinds of interface signal lines through the DVI interface, accomplished to support 4 kinds of input signal interfaces on an interface of kind simultaneously. Therefore, the applicability of the input board is greatly improved, and meanwhile, each input card does not need to be redesigned within time, so that the time and the cost are saved.

Claims

1. The utility model provides a many interfaces input card for mixed matrix of video concatenation ware which characterized in that, includes the input card body (1) and DVI interface (3), the both sides of the input card body (1) are provided with power source (2), DVI interface (3) set up in the middle part of the input card body (1).

2. The multi-interface input card for a video splicer mixing matrix according to claim 1, characterized in that the input card body (1) internally employs an MST6M182VG television processor chip.

3. A multi-interface input card for a video splicer mixing matrix according to claim 1, characterized in that the input card body (1) supports HDMI, VGA, YPbP and CVBS input interfaces.

4. The multi-interface input card for a video splicer mixing matrix according to claim 1, wherein the DVI interface (3) is provided with twenty-nine pins.

5. The multi-interface input card for a hybrid matrix of video splicers, according to claim 1, wherein the DVI interface (3) is capable of four different interface signal extraction simultaneously.

6. The multi-interface input card for a hybrid matrix of video splicers according to claim 1, wherein the DVI interface (3) signals comprise four pairs of differential high speed signal lines TMDS DATA0+/-, TMDS DATA1+/-, TMDS DATA2 +/-and TMDS CLK +/-, respectively.

7. The multi-interface input card for a video splicer mixing matrix according to claim 1, wherein the DATA signal lines of the DVI interface (3) are DDC CLK and DDC DATA, respectively.

8. The multi-interface input card for a video splicer hybrid matrix in accordance with claim 1, wherein the power line of the power interface (2) is HOT PLUG DETECT.