TWI448118B - With a wireless transmission function of the multimedia system - Google Patents

Description

Multimedia audio and video system with wireless transmission

The invention relates to a multimedia audio-visual system, in particular to a computer host can be properly stored in any suitable and safe location, and the user can use a computer peripheral device to play or operate the file or program in the computer host. And through a large-size screen with a TV, the multimedia system that presents high-definition audio and video content.

According to the vigorous development of the digital industry, most of the current audio and video information is in digital format. If you want to display digital audio and video information on today's digital TV, you usually have to assemble an audio and video playback device on the digital TV (such as: Media player) can decode video and audio messages through video and audio playback devices, so that digital TV can play digital video and audio messages normally. Therefore, in order to play digital video and audio messages, users must purchase an appropriate video and audio playback after purchasing digital TV. Equipment, because different specifications of digital audio and video messages (such as: rmvb, avi, mkv) have different decoding specifications, users who want to see a certain number of video and audio information, you must purchase the corresponding digital audio and video playback equipment In order to play the corresponding digital video and audio messages normally on the digital TV in the home, however, when the user wants to watch another digital video information, it is necessary to repurchase another suitable video playback device. Phenomenon, not only causes a burden on the user, but also causes no use. . In addition, if the video playback device fails, the user is not able to repair or update the playback software by himself, but the entire audio and video playback device must be sent to the original factory for repair. This result is the most Rickets.

In recent years, due to the rapid development of the micro-computer industry and the continuous improvement of wireless network technology, personal computers equipped with wireless Internet access functions are becoming more and more inexpensive, and have become an indispensable standard equipment for many people in daily life and work. I have gradually become accustomed to using personal computers to handle all kinds of information in daily life and work. Therefore, the functional requirements of personal computers have evolved from simple paperwork to the need to connect to other computers via the Internet. In order to obtain more network information through the characteristics of the network, such as: audio-visual entertainment, security, instant messaging and distance learning, etc., to meet the needs of personal life and work. Taking digital audio and video information as an example, most people can use the personal computer to directly download the audio and video playback software corresponding to the decoding specification provided by the software company from the Internet, so that the user can normally play the corresponding digital video and audio information on the personal computer once the video is heard. In the event of malfunction or damage to the playback software, the user can also quickly rectify the problem by reinstalling the AV playback software or surfing the Internet for a solution. According to the above, most of the personal computer's network interactive functions not only provide a friendly operating environment, but also provide a fast and diverse platform for technical support. Therefore, in recent years, many companies have combined the idea of combining personal computers with home TVs to create a multimedia audio-visual system that enables home members to use their personal computers to conveniently control home TVs through digital and network technology assistance. After all, most people are very familiar with the operating interface and environment of personal computers, and even have the basic maintenance capabilities of personal computers. Today, most personal computers have built-in audio and video playback software with various digital decoding specifications. If you can smoothly combine your personal computer with your home TV, people can easily view digital audio and video information of various digital specifications on home TV without having to spend extra money to purchase audio and video playback software or video playback equipment.

Taking the more common multimedia audio and video system as an example, as shown in FIG. 1 , the television 11 is connected to the host computer 13 through a transmission line 14 to display the information transmitted from the host computer 13 on the display screen of the television 11 . The computer host 13 is further connected with a keyboard 131 and a mouse 133. Thus, the user can view the system desktop installed in the computer host 13 on the display screen of the television 11, and through the keyboard 131 or the mouse. 133, and select or operate the file or program stored in the computer host 13, so that the whole family can gather in the living room, browse the information or news on the webpage together, and since there are almost all types of the computer mainframe 13 at present. Connections (such as: USB, 1394, PCMCIA, RS232), so members of the family can directly transfer photos or images from digital cameras or digital cameras directly to the host computer 13 through the cable, and then play them on the TV. The display on the screen allows the whole family to clearly view photos or videos on the large screen of TV 11 to share the joy of life or travel.

However, as shown in Figure 1, the above connection method has some defects and inconveniences in use. First, because the size of the TV 11 screen is large, it will occupy more configuration space in the living room, and the computer host 13 Because the TV 11 is electrically connected by a physical transmission line 14, it cannot be too far apart. Therefore, unless there is a TV cabinet with a large area and a large length in the home, the two cannot be properly placed on the TV cabinet. The disorder of the living room configuration is formed; in addition, since the computer mainframe 13 is placed directly beside the television 11, the children in the home can easily touch the host computer 13, and it is easy to accidentally push down the host computer 13 during the playing process. The computer host 13 is damaged. Further, since the keyboard 131 and the mouse 133 are respectively connected to the host computer 13 through a physical connection line 130, 132, the lengths of the physical connection lines 130 and 132 of the keyboard 131 and the mouse 133 are currently Not long, the user must be close to the large-size TV 11 screen when operating the computer mainframe 13, and the result of watching the TV 11 screen at a close distance and for a long time will not only make the user's eyes uncomfortable. It is easier for the user to have problems such as myopia or astigmatism; in addition, when other people in the home want to pass the path between the TV 11 and the keyboard 131 or the mouse 133, it is also easy to be connected to the physical connection line 130 without paying attention. Or 132 is injured and injured, or caused by strong pull, causing damage to the host computer 13, keyboard 131 or mouse 133.

Therefore, how to design a new multimedia audio and video system, so that the user can properly collect the computer host 13 in any suitable location, and can directly click or operate the computer host 13 through the keyboard 131 or the mouse 133. The file or program, and through the large-size display device of the television 11, displaying high-definition digital video and audio information, and effectively solving the aforementioned problems, is an important goal of the present invention.

In view of the traditional multimedia audio-visual system, there are still many shortcomings, and the inventors have developed a multimedia audio-visual system with wireless transmission function of the present invention, in order to enable a computer host to be properly stored in any appropriate and safe manner. Position and enable users to play or manipulate files or programs in the host computer through a computer peripheral device to present high-definition audio and video content on a large-size screen of a home TV, and effective To solve the above problems, provide a more operating environment for the "digital audio and video family."

An object of the present invention is to provide a multimedia audio and video system with wireless transmission function, including a universal serial bus (USB) device, a computer host, and a high-definition multimedia interface (High Definition Multimedia Interface, Referring to the HDMI) transmitting device, an HDMI receiving device, and a display device (such as a liquid crystal television), wherein the USB device is provided with a first microprocessor, at least one USB port, and a first wireless unit, the first micro processing The devices are respectively electrically connected to each of the USB ports and the first wireless unit, and a network virtual USB device (USB over IP) software is installed therein, so that the first microprocessor detects that the USB port is inserted into a computer periphery. When a device (such as a mouse, a keyboard, etc.) is automatically generated, a connection signal is automatically generated and transmitted to the host computer via the first wireless unit, and the computer host automatically receives the connection signal after receiving the connection signal. The computer peripheral device on the USB device is connected, and after the connection is completed, receiving the control signal of the peripheral device of the computer subsequently transmitted by the USB device (eg, keyboard code, Mouse signal...etc.), so that the user can use the computer peripheral device, click on the file in the computer host, or operate the computer host, and the HDMI transmitting device is electrically connected to the computer host, and a second microprocessor, a first digital signal control unit and a second wireless unit are provided. The first digital signal control unit can receive the audio and video signals of the HDMI format transmitted by the computer host, and is transmitted to the second a microprocessor, the second microprocessor can convert the video signal into a wireless signal, and transmit the signal to the HDMI receiving device through the second wireless unit, and further, the HDMI receiving device is provided with a third microprocessor and a a second digital signal control unit and a third wireless unit. After receiving the wireless signal transmitted by the second wireless unit, the third wireless unit transmits the wireless signal to the third microprocessor. The wireless signal is converted into a video signal and transmitted to the display device through the second digital signal control unit. In this way, the user can use the computer peripheral device to play or operate the file or program in the host computer through the large-size screen of the display device, because the computer peripheral device transmits the USB device through the wireless device. The computer main body is controlled, so that the computer main body can be placed in any appropriate and safe position, without being limited by the length of the connecting line, and is reluctantly placed adjacent to the display device, so as to effectively improve the use. Convenience and security.

Another object of the present invention is to provide a multimedia audio and video system with wireless transmission function, including an HDMI receiving device, a computer host, an HDMI transmitting device, and a display device, wherein the HDMI receiving device is provided with a first micro processing , at least one USB port, a first digital signal controller and a first wireless unit, the first microprocessor is electrically connected to each of the USB ports, the first digital signal controller and the first wireless unit, respectively When the microprocessor detects that the USB port is inserted into a computer peripheral device, a connection signal is automatically generated and transmitted to the HDMI transmission device via the first wireless unit, and the HDMI transmission device is provided with a second micro a second wireless unit, a USB interface, and a second digital signal control unit, wherein the second microprocessor is electrically connected to the second wireless unit, the USB interface, and the second digital signal control unit, the second wireless After receiving the connection signal, the unit transmits the connection signal to the second microprocessor, and the second microprocessor transmits the connection signal to the computer main body via the USB interface. After receiving the connection signal, the host computer automatically connects with the computer peripheral device on the HDMI receiving device, and after receiving the connection, receives the control signal generated by the computer peripheral device subsequently transmitted by the HDMI receiving device. In addition, the second digital signal control unit can receive the audio and video signal of the HDMI format transmitted by the host computer, and transmit the video signal to the second microprocessor, and the second microprocessor can convert the video signal into a wireless signal. And transmitting, by the second wireless unit, the first wireless unit, after receiving the wireless signal transmitted by the second wireless unit, the first wireless unit transmits the wireless signal to the first microprocessor, the first micro The processor converts the wireless signal into an audio-visual signal and transmits the video signal to the display device through the first digital signal control unit, so that the multimedia audio-visual system can effectively combine the television with the computer without any wiring problem. , I believe that the "digital audio and video family" provides a better and more diverse operating environment.

For your convenience, the review committee can make a further understanding and understanding of the purpose, technical features and effects of the present invention. The embodiments are combined with the drawings, and the details are as follows:

According to the so-called "USB over IP" technology, by using a computer host as a server (Sever), when the server is inserted into a peripheral device with a USB interface (such as: When the keyboard, mouse, etc.), the server will be wirelessly connected to another computer host as a client through the TCP/IP network protocol, and installed on the client. The application emulates the peripheral device of the computer inserted on the servo terminal into the client, and after receiving the control signal from the peripheral device of the computer, the servo terminal transmits the control signal to the control signal. The client allows the user to directly control the client's computer host, so that the client's computer host executes the predetermined processing procedure according to the control signals.

The inventor has invented a multimedia audio and video system with wireless transmission function according to the technical principle of the foregoing network virtual USB device. In the first embodiment of the present invention, please refer to the multimedia audio and video system shown in FIG. 2 includes a Universal Serial Bus (USB) device 21, a computer host 22, a High Definition Multimedia Interface (HDMI) transmission device 23, an HDMI receiving device 25, and a display. a device (such as a liquid crystal television), wherein the USB device 21 is provided with a first microprocessor 211, at least one USB port 213, and a first wireless unit 215; wherein the first microprocessor 211 is electrically connected to each The USB port 213 and the first wireless unit 215, and the first microprocessor 211 is provided with a network virtual USB device (USB over IP) software, and the network virtual USB device software enables the first microprocessor 211 When it is detected that each USB port 213 is inserted into a computer peripheral device 217 (eg, a mouse, a keyboard, etc.), a connection signal can be automatically generated and transmitted to the USB wireless unit 215 via the first wireless unit 215. The brain host 22; the computer host 22 also has a network virtual USB device software installed to automatically connect to the computer peripheral device 217 connected to the USB device 21 after receiving the connection signal, and is completed. After the connection, the computer peripheral device 217 is simulated to be electrically connected to the computer host 22, and receives corresponding control signals generated by the computer peripheral device 217 subsequently transmitted by the USB device 21 (eg, keyboard code, mouse) The signal...etc.), so that the user can use the computer peripheral device 217 to select or execute the file or program in the computer host 22, so that the computer host 22 can control the signal according to the computer peripheral device 217. The predetermined processing procedure is executed. Since the USB device 21 and the computer host 22 are connected by wireless, the computer host 22 can receive the control transmitted from the USB device 21 in an area that can be covered by the wireless signal. The signal, therefore, the user can properly store the computer host 22 in any suitable location, in case the child touches improperly, or avoids occupying the desktop space of the TV cabinet, and only retains A computer peripheral device 217 such as a mouse or a keyboard is placed in the living room to facilitate the home member to operate the computer host 22 without affecting the course of action of other members of the family in the living room.

In addition, the HDMI transmitting device 23 is electrically connected to the computer host 22, and is provided with a second microprocessor 231, a first digital signal control unit 233 and a second wireless unit 235. The first digital signal is provided. The control unit 233 can receive and process the video signal of the HDMI format transmitted by the host computer 22, and transmit the video signal to the second microprocessor 231, and the second microprocessor 231 converts the video signal into The wireless signal is transmitted to the HDMI receiving device 25 through the wireless home digital interface (WHDI) technology through the second wireless unit 235, because the WHDI technology can provide high image quality, no compression and stability. Sexual multi-room wireless performance with 5 GHz unlicensed band and the ability to transmit video data at up to 3 Gbps in the 40 MHz band, enabling users to enjoy superior and high image quality Digital audio and video content; the HDMI receiving device 25 is provided with a third microprocessor 251, a second digital signal control unit 253 and a third wireless unit 255. The third wireless unit 255 is After receiving the wireless signal transmitted by the second wireless unit 235, the wireless signal is transmitted to the third microprocessor 251, and the third microprocessor 251 can convert the wireless signal back to the HDMI format video signal and transmit it to the The second digital signal control unit 253, after receiving and processing the video signal, the second digital signal control unit 253 transmits the video signal to the display device 26 through an HDMI transmission line, so that the display device 26 can directly play the HDMI. The format audio and video signals enable the members of the home to enjoy high-definition video and audio information through the large-size screen on the display device 26.

In order to clearly describe the overall technical features of the first embodiment of the present invention, and the signal transmission path and sequence, please refer to FIGS. 2 and 3, first, after the USB device 21 is connected to the power supply, That is, the computer host 22 is automatically connected. When the USB device 21 is plugged into the computer peripheral device 217, a connection signal is sent to the computer host 22 (such as the solid line a1 in FIG. 3). After receiving the connection signal, the host computer 22 will reply to establish a connection signal to the USB device 21 (such as the solid line a2 in FIG. 3), and automatically establish a connection with the computer peripheral device 217 through the USB device 21, The USB device 21 can automatically transmit the control signal sent by the computer peripheral device 217 to the computer host 22 (such as the solid line a3 in FIG. 3), and the computer host 22 executes the command according to the command content of the control signal. The file or program in the host computer 22 generates a corresponding computer screen and an audio and video signal in the HDMI format, and is transmitted to the HDMI transmitting device 23 via the HDMI interface on the host computer 22 (as shown by the solid line a4 in FIG. 3). The HDMI transmitting device 23 converts the video signal The wireless signal automatically transmits the wireless signal to the HDMI receiving device 25 (as shown by the solid line a5 in FIG. 3), and the HDMI receiving device 25 converts the wireless signal into the original video signal, and the original Some of the audio and video signals are transmitted to the display device 26 (such as the solid line a6 in FIG. 3), and the corresponding computer screen and the audio and video signals in the HDMI format can be played on the display device 26. In this way, since the HDMI transmitting device 23 and the HDMI receiving device 25 are connected and transmitted by the wireless signal, the user only needs to place the small HDMI transmitting device 23 in the vicinity of the host computer 22, and the volume is The compact HDMI receiving device 25 is placed in the vicinity of the display device 26, and the high-definition video and audio content played in the computer host 22 can be sequentially displayed through the transmission paths of the HDMI transmitting device 23 and the HDMI receiving device 25. On the display device 26, that is, the computer main unit 22 does not need to be placed around the display device 26, and can be properly stored in any appropriate position to prevent the child from inadvertently touching, causing shutdown or knocking down. In the case of the host computer 22, at the same time, the user does not need to plan the location of the host computer 22 in the living room, in order to better design or utilize the space of the living room.

Referring to FIG. 2, with the multimedia system 2 of the present invention, the user can store the computer main unit 22 in a personal bedroom or a study room, and only place a computer peripheral device 217 such as a keyboard or a mouse in the living room. And through the computer peripheral device 217, click on various formats of video and audio signals in the computer main unit 22, and play high-definition audio and video content on the LCD TV in the living room (equivalent to the display device 26) for the whole family to be together. Appreciating in the living room, without being limited by the fact that the traditional computer screen is too small, or the personal bedroom or the study room is too small to allow too many people to enjoy the disadvantages of high-definition video and audio content, the multimedia audio-visual system 2 of the present invention can effectively The high-definition multimedia audio and video content provided by the personal computer is brought into the display device 26 of the living room to meet the more diverse needs of people's lives or work.

In other embodiments of the present invention, the USB device and the HDMI receiving device can be integrated into one body according to actual needs. Since the USB device and the HDMI receiving device are both provided with a microprocessor and a wireless unit, By integrating the common components between the two, the overall size of the USB device and the HDMI receiving device can be effectively reduced, and the overall production cost of the USB device and the HDMI receiving device can be greatly saved.

In addition, in the second embodiment of the present invention, as shown in FIG. 4, the multimedia system 3 includes an HDMI receiving device 31, a computer host 32, an HDMI transmitting device 33, and a display device 36. The HDMI receiving device 31 includes a first microprocessor 311, a USB port 313, a first wireless unit 315, and a first digital signal control unit 317. The first microprocessor 311 is electrically connected to the USB port 313, respectively. The first wireless unit 315 and the first digital signal control unit 317 transmit signals and data to the units, and receive signals and data from the units. When the first microprocessor 311 detects a computer peripheral After the device 37 is electrically connected to the USB port 313, a connection signal is generated, and the connection signal is transmitted to the first wireless unit 315. Further, the first digital signal control unit 317 is electrically connected to the display device 36. The HDMI transmission device 33 includes a second microprocessor 331 , a USB interface unit 332 , and a second number The signal control unit 333 and the second wireless unit 335 are electrically connected to the USB interface unit 332, the second digital signal control unit 333 and the second wireless unit 335 respectively to transmit signals. And the data to each unit, and receiving signals and data from the unit, the USB interface unit 332 is electrically connected to the computer host 32 to transmit or receive signals to each other, and since the computer host 32 is The USB interface unit 332 directly exchanges signals and establishes a connection. Therefore, it is not necessary to additionally install a network virtual USB device software as in the first embodiment of the present invention. Moreover, the second digital signal control unit 333 is also connected to the computer. The host 32 is electrically connected and can receive the audio and video signals of the HDMI format transmitted by the host computer 32. The second wireless unit 335 is connected to the first wireless unit 315 in a wireless manner to receive the first The signal transmitted by the wireless unit 315.

Referring to FIG. 5, when the first microprocessor 311 of the HDMI receiving device 31 detects that the USB port 313 is inserted into the computer peripheral device 37 (eg, a mouse), the first wireless unit 315 passes through the first wireless unit 315. Sending a connection signal to the second wireless unit 335 of the HDMI transmitting device 33 (such as the solid line b1 in FIG. 5), the second wireless unit 335 transmits the connection signal to the second microprocessor 331, the second microprocessor The 331 transmits the connection signal to the host computer 32 via the USB interface unit 332 (as shown by the solid line b2 in FIG. 5). The computer host 32 then replies with a connection signal and passes through the HDMI transmission device 33 ( As shown by the solid line b3) of FIG. 5, it is transmitted to the HDMI receiving device 31 (as shown by the solid line b4 in FIG. 5), and is automatically connected to the computer peripheral device 37 on the HDMI receiving device 31 (ie, simulated into the computer). The peripheral device 37 is directly inserted into the computer host 32) to receive the control signals (such as keyboard code, mouse signal, etc.) generated by the computer peripheral device 37 subsequently transmitted by the HDMI receiving device 31. The user can directly operate the computer peripheral device 37 and select the computer host The file in 32, or the application in the host computer 32, at this time, because the computer peripheral device 37 and the computer host 32 wirelessly transmit signals through the HDMI receiving device 31 and the HDMI transmitting device 33, instead of being physically The line is connected, so that the user can collect the computer main body 32 in an appropriate safe position to prevent the child from being inadvertently collided with the computer host 32 during play, or causing damage to the computer main unit 32.

Furthermore, as shown in FIGS. 4 and 5, after the user operates the computer host 32 to play a video file through the computer peripheral device 37, the HDMI receiving device 31 passes through the HDMI transmitting device 33 (as shown in FIG. 5). The solid line b5) transmits the control signal to the host computer 32 (such as the solid line b6 in FIG. 5), and the computer host 32 transmits the video signal of the played video file to the HDMI transmitting device 33. The second digital signal control unit 333 (such as the solid line b7 in FIG. 5), after receiving and processing the video signal, the second digital signal control unit 333 transmits the video signal to the second microprocessor 331, and the second micro The processor 331 converts the video signal into a wireless signal, and transmits the signal to the HDMI receiving device 31 (such as the solid line b8 in FIG. 5) through the second wireless unit 335, and the first wireless unit 315 receives the second The wireless signal transmitted by the wireless unit 335 is transmitted to the first microprocessor 311, and the first microprocessor 311 converts the wireless signal back to the audio and video signal of the HDMI format, and is controlled by the first digital signal. Unit 317 is transmitted to the display device 36 (as shown in Figure 5) The solid line b9) plays the high-definition video signal of the HDMI format on the display device 36, so that the user can play or operate the computer host 32 through the large-size screen on the display device 36. The content of the file, even online games, in addition to the computer peripheral device 37 used by the user, can still be wirelessly transmitted (eg, wireless mouse, wireless keyboard, etc.) with the HDMI receiving device 31. The computer mainframe 32 is connected and operated, so that the user can operate the computer peripheral device 37 at a position far from the display device 36 without being limited by the length of the physical connection line of the computer peripheral device 37. The operation screen is barely viewed adjacent to the display device 36, causing discomfort to the eyes, and when other people want to pass the path between the display device 36 and the computer peripheral device 37, there is no need to worry that the connection line will collapse. Improve the convenience and security of the use of home members.

In summary, the multimedia audio and video system of the present invention enables the user to place the computer mainframe, the display device, and the computer peripheral device in a suitable location, and the devices are transmitted to each other by wireless transmission. The signal can avoid the user's troubles in wiring, and can improve the convenience and safety of other people's walking, not to mention the user wants to play different specifications of audio and video signals (such as: AVI, H.264, rmbv) At the same time, it can be converted or transmitted through the program of the computer itself, without having to assemble a special playback device beside the TV, which greatly improves the convenience of use, and can also be used when there is any problem in the playback software. The basic computer maintenance capability that most people have, and the rapid elimination of problems, enable the multimedia audio and video system of the present invention to effectively combine a personal computer with a home television to provide a more operating environment for the "digital audio and video family."

The above is only the preferred embodiment of the present invention, but the scope of the claims of the present invention is not limited thereto, and according to those skilled in the art, according to the technical content disclosed in the present invention, Equivalent changes that are easily considered are within the scope of protection of the invention.

2, 3. . . Multimedia audio and video system

twenty one. . . USB device

211, 311. . . First microprocessor

213, 313. . . USB埠

215, 315. . . First wireless unit

217, 37. . . Computer peripheral device

22, 32. . . Computer host

23, 33. . . HDMI transmitter

231, 331. . . Second microprocessor

233, 317. . . First digital signal control unit

235, 335. . . Second wireless unit

25, 31. . . HDMI receiver

251. . . Third microprocessor

253, 333. . . Second digital signal control unit

255. . . Third wireless unit

26, 36. . . Display device

332. . . USB interface unit

The first picture is a multimedia audio and video system combining traditional TV and computer;

2 is a hardware structure diagram of a first embodiment of the present invention;

Figure 3 is a schematic diagram of a signal transmission path of the first embodiment of the present invention;

4 is a hardware structure diagram of a second embodiment of the present invention; and

Figure 5 is a schematic diagram of a signal transmission path of a second embodiment of the present invention.

2. . . Multimedia audio and video system

twenty one. . . USB device

211. . . First microprocessor

213. . . USB埠

215. . . First wireless unit

217. . . Computer peripheral device

twenty two. . . Computer host

twenty three. . . HDMI transmitter

231. . . Second microprocessor

233. . . First digital signal control unit

235. . . Second wireless unit

25. . . HDMI receiver

251. . . Third microprocessor

253. . . Second digital signal control unit

255. . . Third wireless unit

26. . . Display device

Claims (3)

A multimedia audio and video system with wireless transmission function, comprising: a high resolution multimedia video interface receiving device, comprising a first microprocessor, at least one universal serial bus, a first digital signal control unit and a first wireless unit The first microprocessor is electrically connected to each of the universal serial bus, the first digital signal control unit, and the first wireless unit, and the first microprocessor detects the universal serial bus When a computer peripheral device is inserted, a connection signal is automatically generated and transmitted to the first wireless unit, and transmitted through the first wireless unit, or the first wireless device receives the first wireless In the case of a wireless signal transmitted by the unit, the wireless signal is converted into a high-resolution multimedia audio and video interface format video signal, and transmitted to the first digital signal control unit, and transmitted through the first digital signal control unit. a display device electrically connected to the first digital signal control unit and capable of receiving the first digital signal control unit And a high-resolution multimedia video interface device, including a second microprocessor, a universal serial bus interface, a second digital signal control unit, and a second wireless unit, the second microprocessor The second wireless unit can receive the connection signal from the first wireless unit and transmit the connection signal to the first wireless unit, and the second wireless unit. a second microprocessor, the second microprocessor transmits the connection signal to a computer host via the universal serial bus interface, so that the computer host and the high resolution multi The media audio interface receiving device establishes a connection, and the second digital signal control unit can receive the video signal of the high resolution multimedia video interface format transmitted by the computer host, and transmit the video signal to the second microprocessor, the second microprocessor The video signal is converted into a wireless signal and transmitted to the second wireless unit, and the second wireless unit transmits the wireless signal to the first wireless unit. The multimedia audio-visual system of claim 1, wherein the computer host automatically connects to the computer peripheral device on the high-resolution multimedia video interface receiving device after receiving the connection signal from the universal serial bus interface. And after the connection is completed, receiving the control signal of the computer peripheral device subsequently transmitted by the high-resolution multimedia video interface receiving device. The multimedia audio-visual system of claim 1 or 2, wherein the high-resolution multimedia audio-visual interface transmitting device and the high-resolution multimedia audio-video interface receiving device transmit video and audio signals by using a wireless home digital interface technology.