Multi-channel video signal distribution and conversion device based on VGA (Video Graphics Array) interface

Abstract

The utility model discloses a multi-channel video signal distribution and conversion device based on a VGA interface, and the device comprises a VGA input interface which is used for receiving an analog signal inputted by the VGA; the VGA processing module is connected with the VGA input interface and is used for processing the analog signal input by the VGA and received by the VGA input interface into a VGA video signal and a USB Video signal; the VGA output interface is connected with the VGA processing module and is used for outputting the VGA video signal; and the USB Video output interface is connected with the VGA processing module and is used for outputting the USB Video signal. According to the multi-channel video signal distribution and conversion device provided by the utility model, the VGA analog signal input is realized through the VGA input interface, and the external analog signal input by the VGA can be processed through the VGA processing module, so that the diversified requirements of recording, editing or live broadcasting and the like of a user can be met by supporting the output of the VGA video signal and the USB Video signal; the device is wide in application range, simple in structure, easy to implement and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of signal distribution and conversion technology, and in particular to a multi-channel video signal distribution and conversion device based on a VGA interface. Background Technology

[0002] VGA, short for Video Graphics Array, is a video transmission standard introduced by IBM in 1987 with the PS / 2 computer. It boasts advantages such as high resolution, fast display speed, and rich colors, and has been widely used in the field of analog signal displays.

[0003] The VGA interface is based on the VGA standard and is the most widely used interface type on graphics cards; the vast majority of graphics cards have this interface. As a common video interface, the VGA interface is widely used in computers, monitors, and other devices.

[0004] However, traditional VGA devices typically only support one-to-one VGA output, which cannot meet users' needs for VGA input and USB VIDEO output, such as inputting VGA video signals from other devices to other computers for recording, editing, or live streaming. Utility Model Content

[0005] Therefore, the purpose of this utility model is to at least partially address the shortcomings of the existing technology, thereby proposing a multi-channel video distribution and conversion device based on a VGA interface.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a multi-channel video signal distribution and conversion device based on a VGA interface, comprising:

[0008] VGA input interface, used to receive analog signals from VGA input;

[0009] The VGA processing module is connected to the VGA input interface and is used to process the analog signal of the VGA input received by the VGA input interface into VGA video signal and USB video signal.

[0010] A VGA output interface is connected to the VGA processing module and is used to output the VGA video signal;

[0011] The USB Video output interface is connected to the VGA processing module and is used to output the USB Video signal.

[0012] Furthermore, the VGA processing module includes a VGA allocation unit, which is connected to the VGA input interface and is used to split the analog signal of the VGA input received by the VGA input interface into one VGA video signal and one HDMI video signal.

[0013] Furthermore, the VGA allocation unit includes an allocation chip, the model of which includes AD8184 and ZY5621.

[0014] Furthermore, the VGA distribution unit is also connected to the VGA output interface for outputting the VGA video signal through the VGA output interface.

[0015] Furthermore, the VGA processing module also includes a VGA conversion unit, which is connected to the VGA allocation unit and the USB Video output interface respectively. The VGA conversion unit is used to convert the HDMI video signal allocated by the VGA conversion unit into the USB Video signal and transmit it to the USB Video output interface.

[0016] Furthermore, the VGA processing module also includes an HDMI output interface, which is connected to both the VGA distribution unit and the VGA conversion unit. The HDMI output interface transmits the HDMI video signal distributed by the VGA distribution unit to the VGA conversion unit for conversion into the USB video signal.

[0017] Furthermore, the VGA conversion unit includes a conversion chip, and the conversion chip model includes MS2030 and MS2031.

[0018] This invention provides a multi-channel video signal distribution and conversion device based on a VGA interface, comprising: a VGA input interface for receiving analog signals input via VGA; a VGA processing module connected to the VGA input interface for processing the analog signals received via the VGA input interface into VGA video signals and USB video signals; a VGA output interface connected to the VGA processing module for outputting the VGA video signals; and a USB video output interface connected to the VGA processing module for outputting the USB video signals. This multi-channel video signal distribution and conversion device allows for the input of VGA analog signals via the VGA input interface and the processing of external VGA analog signals via the VGA processing module. By supporting the output of VGA video signals and USB video signals, it meets diverse user needs such as recording, editing, and live streaming, and has a wide range of applications. Furthermore, the device has a simple structure, is easy to implement, and is inexpensive. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a flowchart of the multi-channel video signal distribution and conversion device based on the VGA interface of this utility model;

[0021] Figure 2 This is a structural block diagram of the multi-channel video signal distribution and conversion device based on the VGA interface of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the multi-channel video signal distribution and conversion device based on the VGA interface of this utility model.

[0023] The reference numerals in the diagram are as follows: 1. VGA input interface; 2. VGA processing module; 21. VGA distribution unit; 22. HDMI output interface; 23. VGA conversion unit; 3. VGA output interface; 4. USB Video output interface. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0026] Please refer to Figures 1 to 3 This utility model provides a multi-channel video signal distribution and conversion device based on a VGA interface, comprising:

[0027] VGA input interface 1 is used to receive analog signals from VGA input;

[0028] VGA processing module 2, connected to VGA input interface 1, is used to process the analog signal of VGA input received by VGA input interface 1 into VGA video signal and USB video signal;

[0029] VGA output interface 3 is connected to VGA processing module 2 and is used to output VGA video signals;

[0030] USB Video output interface 4 is connected to VGA processing module 2 and is used to output USB Video signals.

[0031] In this embodiment, VGA input interface 1 is used to connect to the VGA output interface of an external device, receiving the VGA analog signal input, and can input the VGA analog signal from the external device into the device. VGA processing module 2 is connected to VGA input interface 1 and is used to process the VGA analog signal received from VGA input interface 1, outputting VGA video signal and USB video signal to meet the user's needs for recording, editing, or live streaming. VGA output interface 3 is connected to VGA processing module 2 and is used to output the VGA video signal processed by VGA processing module 2, which can be output to a display or other device for display. USB video output interface 4 is also connected to VGA processing module 2 and is used to output the USB video signal processed by VGA processing module 2, which can be transmitted to other video processors or computer hosts for image monitoring, acquisition, and recording.

[0032] The VGA-based multi-channel video signal distribution and conversion device of this invention provides a VGA input interface 1, a VGA processing module 2, a VGA output interface 3, and a USB Video output interface 4. While supporting VGA input, it can process analog signals received from external VGA inputs through the VGA processing module 2, and then output VGA video signals and USB video signals through the VGA output interface 3 and the USB Video output interface 4. This allows the device to be functionally expanded according to user needs, such as adding video capture, video compression, and video transmission functions, making it widely applicable. Furthermore, the device adopts a modular design, has a simple structure, is easy to implement, and is inexpensive.

[0033] Furthermore, the VGA processing module 2 includes a VGA distribution unit 21, which is connected to the VGA input interface 1 and is used to split the analog signal of the VGA input received by the VGA input interface 1 into a VGA video signal and an HDMI video signal.

[0034] In this embodiment, the VGA processing module 2 includes a VGA allocation unit 21, which is connected to the VGA input interface 1. The VGA input interface 1 receives analog VGA input signals from external devices and transmits the received analog VGA input signals to the VGA allocation unit 21. The VGA allocation unit 21 divides the received analog VGA input signals into one VGA video signal and one HDMI video signal.

[0035] Specifically, the VGA distribution unit 21 includes a distribution chip, the model of which includes AD8184 and ZY5621. The model of the distribution chip is not limited here and is set according to actual production needs.

[0036] Furthermore, the VGA distribution unit 21 is also connected to the VGA output interface 3 for outputting VGA video signals through the VGA output interface 3.

[0037] In this embodiment, the VGA distribution unit 21 distributes the received VGA input analog signal into one VGA video signal and one HDMI video signal, and then outputs one of the VGA video signals to a device such as a monitor through the VGA output interface 3.

[0038] Furthermore, the VGA processing module 2 also includes a VGA conversion unit 23, which is connected to the VGA distribution unit 21 and the USB Video output interface 4 respectively. The VGA conversion unit 23 is used to convert the HDMI video signal distributed by the VGA conversion unit 23 into a USB video signal and transmit it to the USB Video output interface 4.

[0039] In this embodiment, the VGA processing module 2 further includes a VGA conversion unit 23, which is also connected to the VGA distribution unit 21 and the USB Video output interface 4. After the VGA distribution unit 21 distributes the received VGA input analog signal into one VGA video signal and one HDMI video signal, one VGA video signal is output to the monitor through the VGA output interface 3, and the other HDMI video signal is converted into a USB Video signal through the VGA conversion unit 23. The USB Video signal is then transmitted to another external device through the USB Video output interface 4 for image monitoring, acquisition, recording, etc.

[0040] The VGA conversion unit 23 includes a conversion chip, with models including MS2030 and MS2031. The specific model of the conversion chip is not limited here and is determined based on actual production requirements.

[0041] Furthermore, the VGA processing module 2 also includes an HDMI output interface 22, which is connected to the VGA distribution unit 21 and the VGA conversion unit 23 respectively. The HDMI output interface 22 transmits the HDMI video signal distributed by the VGA distribution unit 21 to the VGA conversion unit 23 to convert it into a USB video signal.

[0042] In this embodiment, the VGA processing module 2 further includes an HDMI output interface 22, wherein the HDMI output interface 22 is connected to the VGA allocation unit 21 and the VGA conversion unit 23 respectively. The VGA allocation unit 21 allocates one VGA video signal and one HDMI video signal to the VGA output interface 3 and the HDMI output interface 22 respectively. The HDMI output interface 22 converts the allocated HDMI video signal into a USB video signal through the VGA conversion unit 23.

[0043] Furthermore, the specific steps of the VGA interface-based multi-channel video signal distribution and conversion device in this application embodiment are as follows:

[0044] 1. VGA Input Interface 1 receives analog signals from VGA input via the VGA output interface of an external device:

[0045] 2. The VGA input interface 1 is connected to the VGA distribution unit 21 in the VGA processing module 2. The VGA distribution unit 21 divides the received VGA input analog signal into one VGA video signal and one HDMI video signal.

[0046] 3. The VGA distribution unit 21 is connected to the VGA output interface 3 and the HDMI output interface 22 respectively, and distributes one VGA video signal and one HDMI video signal to the VGA output interface 3 and the HDMI output interface 22 respectively;

[0047] 4. VGA output interface 3 outputs the received VGA video signal to a monitor or other device for display;

[0048] 5. The HDMI output interface 22 is connected to the VGA conversion unit 23 in the VGA processing module 2, and converts the received HDMI video signal into a USB video signal through the VGA conversion unit 23.

[0049] 6. The VGA conversion unit 23 is connected to the USB Video output interface 4, and the converted USB Video signal is transmitted through the USB Video output interface 4 to other video processors or computer hosts for image monitoring, acquisition, and recording, and is used as a video source.

[0050] This invention provides a multi-channel video signal distribution and conversion device based on a VGA interface, comprising: a VGA input interface for receiving analog signals input via VGA; a VGA processing module connected to the VGA input interface for processing the analog signals received via the VGA input interface into VGA video signals and USB video signals; a VGA output interface connected to the VGA processing module for outputting the VGA video signals; and a USB video output interface connected to the VGA processing module for outputting the USB video signals. This multi-channel video signal distribution and conversion device allows for the input of VGA analog signals via the VGA input interface and the processing of external VGA analog signals via the VGA processing module. By supporting the output of VGA video signals and USB video signals, it meets diverse user needs such as recording, editing, and live streaming, and has a wide range of applications. Furthermore, the device has a simple structure, is easy to implement, and is inexpensive.

[0051] It should be noted that the various embodiments in this utility model are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] It should also be noted that, in the present invention, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined in the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-channel video signal distribution and conversion apparatus based on VGA interface, characterized in that, The application relates to a VGA input interface for receiving analog signals of VGA input, a VGA processing module connected with the VGA input interface for processing the analog signals of VGA input received by the VGA input interface into VGA video signals and USB Video signals, a VGA output interface connected with the VGA processing module for outputting the VGA video signals, and a USB Video output interface connected with the VGA processing module for outputting the USB Video signals. The VGA processing module comprises a VGA distribution unit connected with the VGA input interface for distributing the analog signals of VGA input received by the VGA input interface into one-way VGA video signals and one-way HDMI video signals. The VGA distribution unit comprises a distribution chip, and the model of the distribution chip comprises AD8184 and ZY5621. The VGA distribution unit is also connected with the VGA output interface for outputting the VGA video signals through the VGA output interface. The VGA processing module further comprises a VGA conversion unit connected with the VGA distribution unit and the USB Video output interface respectively, and the VGA conversion unit is used for converting the HDMI video signals distributed by the VGA conversion unit into the USB Video signals and transmitting the USB Video signals to the USB Video output interface.

2. The VGA interface based multi-video signal distribution and conversion apparatus according to claim 1, wherein, The VGA processing module further comprises an HDMI output interface connected with the VGA distribution unit and the VGA conversion unit respectively, and the HDMI output interface transmits the HDMI video signals distributed by the VGA distribution unit to the VGA conversion unit to be converted into the USB Video signals.

3. The VGA interface based multi-video signal distribution and conversion apparatus according to claim 2, wherein, The VGA conversion unit comprises a conversion chip, and the model of the conversion chip comprises MS2030 and MS2031.

4. The VGA interface based multi-video signal distribution and conversion apparatus according to claim 2, wherein, ​ 5. The VGA interface based multi-video signal distribution and conversion apparatus according to claim 2, wherein, ​ 6. The VGA interface based multi-video signal distribution and conversion apparatus according to claim 5, wherein, ​ 7. The VGA interface based multi-video signal distribution and conversion apparatus according to claim 5, wherein, ​

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