CN203366192U - Multi-stream transmission expansion card - Google Patents

Abstract

A multi-serial streaming expansion card comprising: a circuit board having a connection port terminal; the video separation chips are arranged on the circuit board, wherein each video separation chip is respectively provided with an input end and two output ends, and the video separation chips are respectively electrically connected in series with one of the input end and the output end. A digital video input connector configured at the connection port of the circuit board and electrically coupled to the input terminal of one of the video splitter chips. At least one digital video output connector configured at the port end of the circuit board; and a plurality of video output ports disposed at the port end of the circuit board, wherein the video output port is selected from the group consisting of a digital video interface port, a high-definition multimedia interface port, an ultra-high-density cable connection port, and a video output port of the above-mentioned components, and the other output end of each video splitter chip is electrically connected to the digital video output connector or one of the video output ports.

Description

Multi-stream transmission expansion card

technical field

The utility model relates to an expansion card for multimedia output, in particular to a multi-stream transport (Multi-Stream Transport, MST) expansion card. the

Background technique

In this era of information and knowledge explosion, the way people receive information has gradually changed from traditional print media (such as books, newspapers and magazines, etc.) to audio-visual multimedia through the rapid growth of network applications. A lot of information and knowledge have been transformed into e-books, audio books, video, audio-visual and other multimedia presentations, delivery and storage. Therefore, people have more and more demands on related devices for multimedia output, transmission and storage. the

Based on the above, today's electronic products have higher and higher requirements for audio-visual and file data transmission, which also requires continuous improvement of high-speed transmission interface technology. Some old transmission interface technologies, such as DVI, VGA, LVDS, etc. can no longer meet the needs of the market, and the open, patent-free digital video connector (Display Port, DP) interface technology is gradually replacing these technologies. And the field of embedded systems has become a pivotal standard. The Display Port standard formulated by the Video Electronics Standards Association (VESA) has been approved by major manufacturers such as Intel, AMD, Dell, HP, IDT, LG, Philips and Samsung. Widely supported. The latest version 1.2 of Display Port is scheduled for November 22, 2009, and supports multi-stream transport (Multi-Stream Transport, MST). Through these high-speed digital video transmission technologies, it can be widely used in audio-visual equipment in our daily life. For example, a PC can connect multiple monitors in series to display the same or different videos; or a TV composed of multiple display devices The wall is also achieved through this technique. the

Currently, some display cards on the market have outputs that support the Display Port interface standard, but most of them only have a single DP output. If users want to connect multiple monitors, they need to replace a high-end graphics card with multiple DP output specifications. This kind of graphics card is usually expensive, and usually only supports the connection of 3 to 4 monitors at the same time. Another option is to purchase a multi-stream transmission adapter (MST hub), which is currently available in the market as an external connection, and must be connected to an external power supply, and must be connected to the Display Port output, and it can only be connected to 3~ 4 monitors. In addition, the multi-stream transmission adapter (MST hub) does not provide the function of connecting them in series. the

Utility model content

Therefore, the purpose of this utility model is to provide a kind of multi-stream transmission expansion card that conforms to Peripheral Interconnect Standard (PCI) or Express Peripheral Interconnect Standard (PCIE), which can receive the DP output on the motherboard or display card, And expand to multiple display devices for video stream output; at the same time, it can also have DP output ports and DP input ports, so that multiple multi-stream transmission expansion cards of the present utility model can be connected in series to connect more display devices; Can provide more than four digital video interface (DVI) output. the

In order to achieve the above object, the utility model discloses a multi-stream transmission expansion card, which is applied to a motherboard of a computer. It is characterized in that the multi-stream transmission expansion card includes:

A circuit board has a plurality of golden fingers suitable for electrical coupling with the slot, and the circuit board has a connecting port end providing external connection of the computer;

A plurality of video separation chips are arranged on the circuit board, the video separation chips are electrically connected in series with each other, and the video separation chips are electrically coupled to the golden fingers;

A digital video input connector is arranged at the connection port of the circuit board and is electrically coupled with one of the video splitter chips;

at least one digital video output connector, configured at the port end of the circuit board, and electrically coupled with at least one of the video splitter chips; and

A plurality of video output ports are arranged on the port end of the circuit board and electrically coupled with at least one of the video separation chips, wherein the video output ports are selected from the digital video interface connection ports, high-definition Multimedia interface connection port, a video output port in the group consisting of ultra-high-density cable connection ports. the

Wherein, each of the video separation chips has an input terminal and two output terminals respectively. the

Wherein, the video separation chips are electrically connected in series with one of the input end and the output ends, and the other output end of each of the video separation chips is respectively electrically connected to the digital video output connector, or one of these video output ports. the

Wherein, the input end of one of the video separation chips is electrically coupled to the digital video input connector to receive a video signal. the

Wherein, the video separation chips support the digital video interface version 1.2 (DP1.2) specification. the

Wherein, the digital video input connector is electrically connected in series with an image processing interface card in the computer. the

Wherein, the digital video input connector is electrically serially connected with another multi-stream transmission expansion card. the

Wherein, the video output ports provide 4 to 8 digital video interface connection port outputs. the

Among them, the ultra-high-density cable connection port provides 1 to 4 digital video interface port outputs. the

Also disclosed is a multi-stream transmission expansion card, characterized in that it comprises:

a circuit board having a connection port;

A plurality of video signal separation chips are arranged on the circuit board, wherein each of the video signal separation chips has an input terminal and two output terminals respectively, and the video signal separation chips are respectively connected to each other by one of the input terminal and the output terminals electrical series connection;

a digital video input connector, configured at the connection port of the circuit board, and electrically coupled with the input of one of the video splitter chips;

at least one digital video output connector configured at the port end of the circuit board; and

A plurality of video output ports are configured on the port end of the circuit board, wherein the video output ports are selected from the digital video interface port, the high-definition multimedia interface port, and the ultra-high-density cable connection port A video output port in the formed group, wherein the other output end of each of the video separation chips is respectively electrically connected to the digital video output connector, or one of the video output ports. the

Wherein, the video separation chips support the digital video interface version 1.2 (DP1.2) specification. the

Wherein, the digital video input connector is suitable for electrical serial connection with a video output of an image processing interface card. the

Wherein, the digital video input connector is electrically serially connected with another multi-stream transmission expansion card. the

Wherein, the video output ports provide 4 to 8 digital video interface connection port outputs. the

Among them, the ultra-high-density cable connection port provides 1 to 4 digital video interface port outputs. the

Through the above structure, the multi-stream transmission expansion card of the present invention conforms to PCI or PCI Express, and can be directly plugged into the PCI or PCIE slot of the computer to improve the convenience of use. Moreover, the multi-stream transmission expansion card of the present invention can be serially connected with the digital video output connector on the motherboard or display card to receive video signals for subsequent video stream output. Therefore, the multi-stream transmission expansion card of the present invention can be directly connected in series with the existing graphics display interface to output video streams, which can reduce the investment cost of users. According to the embodiment of the present invention, the multi-stream transmission expansion card has a digital video input connector and a digital video output connector respectively, so the multi-stream transmission expansion cards of the present invention can be connected in series to provide more video streams output. The multi-stream transmission expansion card of the utility model is matched with an ultra-high-density cable connection line (VHDCI), which can provide more than four DVI outputs, and can even reach 99 DVI outputs through series connection. the

With regard to the advantages, spirit and features of the present utility model, it will be described and discussed in detail with reference to the accompanying drawings. It is worth noting that, in order to make the utility model easier to understand, the accompanying drawings are only schematic diagrams, and the relevant dimensions are not shown in actual scale. the

Description of drawings

FIG. 1 is a schematic block diagram of a video separation chip according to some embodiments of the present invention. the

FIG. 2 is a schematic diagram illustrating a series connection of video separation chips according to some embodiments of the present invention. the

FIG. 3 : is a schematic diagram of a series connection of video separation chips according to other embodiments of the present invention. the

FIG. 4 is a schematic diagram of a multi-stream transmission expansion card according to some embodiments of the present invention. the

FIG. 5 is a schematic diagram illustrating a connection port of a multi-stream transmission expansion card according to another embodiment of the present invention. the

Detailed ways

In order to make the advantages, spirit and characteristics of the present invention more easily and clearly understood, the following will be described and discussed in detail with reference to the accompanying drawings. It should be noted that these embodiments are only representative embodiments of the present invention, and the specific methods, devices, conditions, materials, etc. cited therein are not intended to limit the present invention or the corresponding embodiments. the

Please refer to FIG. 1 , which shows a schematic block diagram of a video separation chip according to some embodiments of the present invention. According to some embodiments of the present invention, the signal separation chip 100 at least includes an input terminal 102 and two output terminals 104 , 106 . As shown in the figure, the input terminal 102 can receive a video signal in the digital video interface version 1.2 (DP1.2) format, or a video signal in the high-definition multimedia interface version 1.4 (HDMI1.4) format. After the received video signal is processed by the video signal processor 108 and the audio signal processor 110 , the video signal is split and sent to the output terminals 104 and 106 respectively. As shown in the figure, the output signals of the output terminals 104 and 106 can conform to the video signal of the digital video interface version 1.2 (DP1.2) format, or the video signal of the high-definition multimedia interface version 1.4 (HDMI1.4) format. However, other components in the signal separation chip 100, such as high bandwidth content protection (high bandwidth content protection, HDCP) components, consumer electronics control components (consumer electronics control, CEC), general purpose input/output components (general purpose input/output, GPIO), etc., should be known to those who are familiar with this technology, so they will not be repeated here. the

Next, please refer to FIG. 2 , which shows a schematic diagram of a series connection of video separation chips according to some embodiments of the present invention. As mentioned above, the video separation chip of the present invention can receive a video signal and divide it into two video signals for output. In some embodiments of the present invention, the video separation chips are electrically connected in series to achieve multi-stream transport (Multi-Stream Transport, MST). Please refer to FIG. 2 , the video splitter chips 210 , 220 , 230 are electrically coupled in series. For example, the video separation chip 210, 220, 230 has an input end and two output ends respectively, that is to say, the video signal separation chip 210 has an input end 212, output ends 214, 216; the video signal separation chip 220 has an input end 222, The output terminals 224, 226; the video separation chip 230 has an input terminal 232 and an output terminal 234, 236. The video separation chip 210 can receive a video signal in DP1.2 format from a video signal source, such as a graphics processing unit (GPU) of a computer motherboard, or a display interface card, through a digital video connector or a high-definition multimedia interface connector. , or a video signal in HDMI1.4 format. After the splitting process of the video signal by the video separation chip 210 , two video signals are generated by splitting, one of which is output through the output terminal 214 , and the other video signal is output through the output terminal 216 . The output terminal 214 is used to connect in series with the input terminal 222 of the video splitter chip 220 , and the output terminal 216 can directly output to a display 250 . The output terminal 216 can output through various output interfaces, such as a digital video interface connection port (DVI port), a high-definition multimedia interface connection port (HDMI port), a very high-density cable connection port (VHDCI port), or DP. As shown in the figure, the output terminal 216 can be connected to a display 250 through a digital video interface. the

The input end 222 of the video separation chip 220 receives a video signal 240 from the output end 214 of the video separation chip 210 , such as a video signal in DP1.2 format or a video signal in HDMI1.4 format. After the splitting process of the video signal by the video separation chip 220 , two video signals are generated by splitting, one of which is output through the output end 224 , and the other is output through the output end 226 . The output terminal 224 is used for serial connection with the input terminal 232 of the video splitter chip 230 , and the output terminal 226 can directly output to a display 252 . As shown in the figure, the output terminal 226 can be connected to the display 252 through a digital video interface. Similarly, the input terminal 232 of the video separation chip 230 receives a video signal 242 from the output terminal 224 of the video separation chip 220 , such as a video signal in DP1.2 format or a video signal in HDMI1.4 format. After the splitting process of the video signal by the video separation chip 230, the splitting generates two video signals, and the output terminals 234, 236 directly output to the displays 254, 256. For example, the output terminals 234, 236 can be connected to the displays 254, 256 through a digital video interface. In this embodiment, the output of four displays 250 , 252 , 254 , 256 can be provided through the electrical serial connection of the video splitter chips 210 , 220 , 230 to achieve a multi-stream transmission (MST) function. the

Please refer to FIG. 3 , which shows a schematic diagram of a series connection of video separation chips according to other embodiments of the present invention. Please refer to FIG. 3, five video separation chips 310, 320, 330, 340, 350 are electrically connected in series in a manner similar to FIG. output. Similarly, according to the serial connection mode in Fig. 2, when N video separation chips are electrically connected in series, video output of N+1 displays can be provided, and N is 1-98, that is to say, the utility model has multiple Streaming can provide video output for up to 99 displays. the

Next, please refer to FIG. 4 , which shows a schematic diagram of a multi-stream transmission expansion card according to some embodiments of the present invention. In order to improve the convenience of users, the multi-stream transmission expansion card of the present utility model conforms to the Peripheral Interconnect Standard (PCI) or the Express Peripheral Interconnect Standard (PCIE), and can be directly plugged into the PCI or PCIE card on the motherboard of the computer. socket (not shown). In some embodiments of the present invention, the multi-stream transmission expansion card 400 includes a circuit board 460, and the circuit board 460 has a plurality of gold fingers 408 (gold fingers), which can be plugged into PCI or PCIE slots. The circuit board 460 also has a connection port 402, which can be configured with multiple input/output connection ports, and is located at the back of the computer to provide external connections, such as connecting to a display. In some embodiments of the present invention, a plurality of video separation chips 410 , 420 , 430 , 440 , 450 are disposed on the circuit board 460 , and can be electrically connected in series using the serial connection mode shown in FIG. 2 or FIG. 3 . For example, in this embodiment, the connection is performed in the manner shown in FIG. 3 , the video splitter chip 410 is equivalent to the video splitter chip 310 in FIG. 3 ; the video splitter chip 420 is equal to the video splitter chip 320 in FIG. 3 ; the video splitter chip 430 is equal to the video splitter chip 330 in FIG. 3 ; the video splitter chip 440 is equal to the video splitter chip 340 in FIG. 3 ; the video splitter chip 450 is equal to the video splitter chip 350 in FIG. 3 . the

The input end of the video splitter chip 410 can be electrically connected to an input port (input port) 404 of the port end 402, such as a digital video input connector (DP input). In some embodiments of the present invention, the video separation chip 410 can be electrically coupled to an output port (not shown) of a display card through the input port 404 to receive the video signal of the display card; however, the video separation chip The 410 can also receive video signals from the graphics processing unit (GPU) on the motherboard. As mentioned above, the video signal can be in the format of DP1.2 or HDMI1.4. 3, the video splitter chips 410, 420, 430, 440, 450 are electrically connected in series to provide outputs of six displays, and these video output signals are passed through the output ports of the port 402 port)406, external output. That is, one of the output ends of each video splitter chip 410 , 420 , 430 , 440 , 450 can be electrically coupled to the output port 406 respectively. In some embodiments, the output port 406 may be a very high density cable connection port (VHDCI port). As shown in the figure, the output port 406 is two VHDCI ports, which can be connected to six displays via two VHDCI cables (the related technology is disclosed in another application of the applicant "connector and video data sharing method" ). It should be noted that the multi-stream transmission expansion card of the present utility model is equipped with an output port, such as a digital video output port, on the connection port 402 in order to facilitate serial connection with another multi-stream transmission expansion card. Connector (DP output) (not shown). For example, one of the output ports of the video splitter chip 450 can be electrically connected to a DP output for serial connection with another multi-stream transmission expansion card. It should be noted that the arrangement of the video separation chips 410, 420, 430, 440, 450 on the circuit board 460 shown in FIG. 410 , 420 , 430 , 440 , and 450 are electrically serially connected to each other, and there are many other variations. This embodiment is not intended to limit the circuit configuration of the present invention. the

Please refer to FIG. 5 , which is a schematic diagram of a connection port of a multi-stream transmission expansion card according to another embodiment of the present invention. Although the connection port 402 in the embodiment of FIG. 4 only shows an input port 404 (DP input or HDMI input), and two output ports 406 (VHDCI port). However, the output of the multi-stream transmission expansion card of the present invention can meet various specifications. For example, referring to FIG. 5, the connection port 500 (equivalent to 402 in FIG. 4) of the multi-stream transmission expansion card of the present invention may include a digital video input connector 502 (DP input) for communicating with the display card or motherboard DP output port connection. The output port part may include a digital video output connector 504 for electrical connection with another multi-stream transmission expansion card or a display. The output ports connected to the display can include ultra-high density cable connection ports 506, 508 (VHDCI port), digital video interface connection port 514 (DVI port), and high-definition multimedia interface connection port 512 (HDMI port). Those skilled in the art should know that this embodiment only takes the more commonly used video output specifications as an example, but does not limit the scope of application of the present invention. Other video output specifications or connection ports (such as mini HDMI, micro HDMI), or are under development The video output specifications in all can be applied in the utility model. the

Although the multi-stream transmission expansion card of the present invention is disclosed above in the form of a PCI or PCIE interface card, those skilled in the art should know that the multi-stream transmission expansion card of the present invention can also be in the form of an external box. This makes the application of the utility model more flexible, but this application must be connected to the SATA power supply of the computer. To sum up, the multi-stream transmission expansion card of the present invention conforms to the PCI or PCIE standard, and can be directly plugged into the PCI or PCIE slot of the computer to improve the convenience of use. Moreover, the multi-stream transmission expansion card of the present utility model can be serially connected with the digital video output connector on the motherboard or display card to receive video signals for subsequent video stream output, thereby reducing the investment cost of users . The multi-stream transmission expansion card of the present invention has a digital video input connector and a digital video output connector respectively, so the multi-stream transmission expansion cards of the present invention can be connected in series to provide more video stream outputs. The multi-stream transmission expansion card of the utility model is matched with an ultra-high-density cable connection line (VHDCI), which can provide more than four DVI outputs, and can even reach 99 DVI outputs through series connection. It is also worth mentioning that those skilled in the art should know that the multi-stream transmission expansion card of the present invention can not only provide the stream output of video signals, but also provide the stream output of audio signals. the

Through the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present utility model can be described more clearly, and the scope of the present utility model is not limited by the preferred embodiments disclosed above. On the contrary, the purpose is to cover various changes and arrangements with equivalents within the scope of the patent scope of the utility model. Although the present utility model has been disclosed as above in terms of implementation, it is not intended to limit the present utility model. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the scope of protection of the present utility model should be defined by the scope of the appended patent application as the criterion. the

Claims (15)

1. crossfire more than a kind transmits expansion board, is applied to a motherboard of a computer, and this motherboard has at least one slot that meets peripheral hardware interconnect standard or quick peripheral hardware interconnect standard, it is characterized in that these many crossfires transmission expansion boards comprise:

One circuit board, have a plurality of golden fingers that are suitable for this slot electric property coupling, and this circuit board has a Port end that the external connection of this computer is provided;

A plurality of video signal separating wafers, be disposed on this circuit board, and those video signal separating wafers are electrically series connection each other, and those video signal separating wafers and those golden finger electric property couplings;

One digital video signal input adapter, be disposed at this Port end of this circuit board, and with those one of them electric property couplings of video signal separating wafer;

At least one digital video signal out splice going splice, be disposed at this Port end of this circuit board, with those video signal separating wafers one of them electric property coupling at least; And

A plurality of video signal output ports, be disposed at this Port end of this circuit board, with those video signal separating wafers one of them electric property coupling at least, wherein those video signal output ports are selected from by the digital video interface port, high-definition multimedia interface port, a kind of video signal output port in the cohort that super-high density cable link Port forms.

2. many crossfire transmission expansion boards as claimed in claim 1, is characterized in that, each those video signal separating wafer has respectively an input end and two output terminals.

3. many crossfires as claimed in claim 2 transmit expansion board, it is characterized in that, those video signal separating wafers respectively with this input end and those output terminals one of them each other electrically the series connection, and this output terminal of another of each those video signal separating wafer is electrically connected respectively this digital video signal out splice going splice, or those video signal output ports one of them.

4. many crossfires transmission expansion board as claimed in claim 2, is characterized in that, one of them this digital video signal input adapter of this input end electric property coupling of those video signal separating wafers is to receive a video signal.

5. many crossfire transmission expansion boards as claimed in claim 1, is characterized in that, those video signal separating wafers are supported 1.2 editions (DP1.2) specifications of digital video signal interface.

6. many crossfire transmission expansion boards as claimed in claim 1, is characterized in that, this digital video signal input adapter electrically is connected in series with the image processing interface card in this computer.

7. many crossfire transmission expansion boards as claimed in claim 1, is characterized in that, this digital video signal input adapter electrically is connected in series with another many crossfire transmission expansion boards.

8. many crossfire transmission expansion boards as claimed in claim 1, is characterized in that, those video signal output ports provide 4～8 digital video interface port outputs.

9. many crossfire transmission expansion boards as claimed in claim 1, is characterized in that, super-high density cable link Port provides 1～4 digital video interface port output.

10. crossfire more than a kind transmits expansion board, it is characterized in that comprising:

One circuit board, have a Port end;

A plurality of video signal separating wafers, be disposed on this circuit board, and wherein each those video signal separating wafer has respectively an input end and two output terminals, those video signal separating wafers respectively with this input end and those output terminals one of them each other electrically the series connection;

One digital video signal input adapter, be disposed at this Port end of this circuit board, and with one of them this input end electric property coupling of those video signal separating wafers;

At least one digital video signal out splice going splice, be disposed at this Port end of this circuit board; And

A plurality of video signal output ports, be disposed at this Port end of this circuit board, wherein those video signal output ports are selected from by the digital video interface port, high-definition multimedia interface port, a kind of video signal output port in the cohort that super-high density cable link Port forms, wherein another this output terminal of each those video signal separating wafer is electrically connected respectively this digital video signal out splice going splice, or those video signal output ports one of them.

11. many crossfire transmission expansion boards as claimed in claim 10 is characterized in that those video signal separating wafers are supported 1.2 editions (DP1.2) specifications of digital video signal interface.

12. many crossfire transmission expansion boards as claimed in claim 10, is characterized in that this digital video signal input adapter is suitable for being connected in series with a video signal output electric property of an image processing interface card.

13. many crossfire transmission expansion boards as claimed in claim 10, is characterized in that, this digital video signal input adapter electrically is connected in series with another many crossfire transmission expansion boards.

14. many crossfire transmission expansion boards as claimed in claim 10 is characterized in that those video signal output ports provide 4～8 digital video interface port outputs.

15. many crossfire transmission expansion boards as claimed in claim 10 is characterized in that super-high density cable link Port provides 1～4 digital video interface port output.

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