WO2009117914A1

WO2009117914A1 - Audio video wireless broadcast apparatus and control method

Info

Publication number: WO2009117914A1
Application number: PCT/CN2009/070575
Authority: WO
Inventors: 林忠宏
Original assignee: 昭通科技股份有限公司
Priority date: 2008-03-27
Filing date: 2009-02-27
Publication date: 2009-10-01
Also published as: CN101547027A

Abstract

An audio video (AV) wireless broadcast apparatus and control method, the apparatus includes an AV transmitter (1), an AV receiver (2) and a remoter (3). The AV transmitter (1) is provided for connecting with a computer (4) or various multimedia players (5), such as MP3, MP4, CD player, VCD player or DVD player etc., the AV receiver (4) is provided for connecting with various players (7), such as TV, projector, stereo device or speaker etc., the multimedia AV information in computer (4) or various multimedia players (5) can be transmitted by the AV transmitter (1) by means of wireless, then the multimedia AV information received by the AV receiver (2) is displayed by the players (7). In order to control the playing of the multimedia AV information, the remoter (3) can be used to operate the device that is connected with the AV receiver (2) or remote the AV transmitter (1) to operate the computer (4). Therefore, it is more useful and convenient for users when they are watching and listening to the multimedia AV data.

Description

Video and audio wireless broadcasting device and control method

The invention relates to an audio-visual wireless broadcasting device and a control method thereof, in particular to a video or audio data of a computer or various multimedia players, which can be transmitted to a television, a projector, an audio, a speaker and the like by using a wireless transmission method. Broadcast, for users to watch and listen, to get a clearer, larger viewing screen and higher quality viewing experience, and to receive audio and video at the same place in each device and in each room. Data and viewing, and the practical and convenient audio-visual wireless broadcasting device and control method are innovatively designed.

Background technique

In the modern society where technology is increasingly advancing, all kinds of computer equipment are everywhere in people's lives, and personal computer equipment is almost one of the products necessary for every household. The personal computer can not only be It is convenient for people to deal with various things, data, etc., and it is also convenient for people to search for various information on the Internet. In addition, with the relatively rapid development of computer equipment and various peripheral devices, more and more people are also Using a personal computer to watch a variety of multimedia audio and video information, coupled with the success of You Tube, more video sharing sites on the Internet came into being, making it easier for people to get more video and music information through the computer.

In addition, in addition to using the personal computer to view various multimedia audio and video information, various types of electronic products such as MP3 (MPEG-Movie Picture Experts Group-) can also be displayed on the market for playing music, images, sounds, and the like. 1 Layer3) Player, MP4 (MPEG-4; Movie Picture Experts Group-4) player, CD (Compat Disk) player, VCD (Video Compact Disk) player, DVD (Digital Versatile/Video Disk) playback A multimedia player such as a machine can satisfy various sensory needs of people watching various multimedia videos and music information in daily life.

However, whether it is a personal computer device or other various multimedia players, although it can achieve the expected effect of viewing various multimedia audio and video information, it is also exercised in its actual operation. It has been found that the above structure has the following disadvantages:

1. The personal computer device, because it is limited by the size limit of its computer screen, causes its visual effect when watching a movie or playing a game is not good, and long-time viewing is easy to affect people's vision, and Personal computers are usually placed in the study room. In addition to being unable to allow many people to share the viewing, there is no way to have a comfortable environment (such as the living room, audio-visual room) to get a better sense of presence.

2. The multimedia player can be directly connected to the TV screen to play, but usually connected in a one-to-one manner, so the people to be watched must be in the same room, and cannot be viewed in each room. , the selectivity in its use is relatively reduced.

Therefore, in view of this, the inventors have provided research and development and practical production experience of relevant industries for many years, and have researched and improved the existing structure and defects, and provided an audio-visual wireless broadcasting device and a control method, in order to achieve each In other rooms and places, you can receive video and audio data at the same time, and play the effect of clearer and higher quality audio and video, and thus improve the better practical value of the surrounding matching device.

Summary of the invention

The audio-visual radio broadcasting device and the control method of the present invention are mainly provided with an audio-visual transmitter, a video-audio receiver and a remote controller, respectively, and the audio-visual transmitter can be used for playing with a computer or an MP3, an MP4, a CD player, a VCD player, a DVD player. Various multimedia players such as a computer are connected, and the video receiver is connected to various playback devices such as a television, a projector, an audio, a speaker, etc., and the computer or other multimedia can be utilized by the audio and video transmitter. The multimedia audio and video information in the player is wirelessly transmitted, and is received by the audio/video receiver for playing through the playing device, and the remote controller can also be used to control the video receiver or the video transmitter to operate the connected external device, or far The computer at the end controls the playback of multimedia audio and video information; thereby enabling the user to view and listen to the multimedia audio and video data, and to obtain a clearer, larger viewing screen and higher quality, better sound quality. At the same time, it can achieve the same viewing in different places and rooms, and it will increase its practical convenience. DRAWINGS

Figure 1 is an external view of the structure of the present invention; Figure 2 is a block diagram showing the overall structure of the present invention;

Figure 3 is a block diagram showing the structure of the audio and video transmitter of the present invention;

4 is a block diagram showing the structure of a video receiver of the present invention;

Figure 5 is a block diagram showing the structure of the remote controller of the present invention;

Figure 6 is a flow chart showing the use of the audio and video transmitter of the present invention;

Figure 7 is a flow chart showing the use of the video receiver of the present invention;

8 is a flow chart of using a radio frequency module of a remote controller according to the present invention;

Figure 9 is a flow chart showing the use of the remote controller of the present invention;

10 is a flow chart showing the use of the remote controller of the present invention in a computer mode; FIG. 11 is a flow chart showing the use of the remote controller of the present invention in a television mode;

Figure 13 is a schematic view of the use state of the present invention

Reference number

1 AV transmitter 1 1 multiplex interface input unit 12 Central processing unit 13 Video codec unit 14 Wireless transmission and reception unit 141 antenna

15 remote control RF module 151 control unit

152 wireless receiving unit 153 antenna

154 USB connector 2 AV receiver 21 Central processing unit 22 Wireless receiving and transmitting unit 221 Antenna 23 AV output module

24 Video codec unit 25 Remote control module 251 Control unit 252 Infrared receiver unit 26 External input unit 3 Remote control

31 Control unit 32 Input unit 321 button 322 mouse

323 joystick 33 wireless transmitter unit

331 antenna 34 indicator unit

35 infrared emission unit 4 computer

5 Multimedia player 6 source signal

7 playback device

detailed description

For a more complete and clear disclosure of the technical contents, the objects of the invention, and the effects thereof, the present invention will be described in detail below, and reference should be made to the accompanying drawings and drawings.

First, please refer to FIG. 1 for the appearance of the structure of the present invention and FIG. 2 for the overall structure of the present invention. The present invention is mainly provided with an audio-visual transmitter 1, a video receiver 2 and a remote controller 3, respectively. 1 can be connected with a computer 4 or a variety of multimedia players 5 and audio source signals 6 such as CD, DVD, MP3, MP4, and the audio and video receiver 2 can be used with various playback devices such as televisions, projectors, stereos, speakers, and the like. 7-phase connection; where:

The video transmitter 1 is shown in the block diagram of the video transmitter of the present invention. The multiplexer input unit 11 is provided with the computer 4 and various multimedia modules. The player 5 or the network cable is connected for inputting audio and video signals such as VGA, DVI, HDMK RCA or Composite, and the multiplex interface input unit 11 is connected to the central processing unit 12, and the central processing unit 12 is also connected with video and audio codec. The unit 13 is also connected to the multiplexed interface input unit 11, and the audio/video codec unit 13 is directly connected to the audio source signal 6, and the central processing unit 12 is further connected with a wireless transmitting and receiving unit. 14. The wireless transmitting and receiving unit 14 is connected to the antenna 141 at the same time, so that the antenna 141 can transmit and receive signals complying with the IEEE 802.11 wireless network communication protocol standard at a frequency of 2.4 GHz to 5 GHz, and the central processing unit 12 A remote control radio frequency module 15 is connected, and the remote control radio frequency module 15 is connected to the central processing unit 12 by the control unit 151, the control list The wireless receiving unit 152 is connected to the wireless receiving unit 152, and the antenna 153 is connected to the wireless receiving unit 152 to receive the radio frequency signal by using the antenna 153, and the USB (Universal Serial Bus) connector is connected to the control unit 151. 154 is provided for connection with the computer 4.

The video receiver 2, as shown in the block diagram of the video receiver of the present invention, is provided with a central processing unit 21, and the central processing unit 21 is connected to the wireless receiving and transmitting unit 22, and the The wireless receiving and transmitting unit 22 is connected to the antenna 221, so that the antenna 221 can receive and transmit signals with a frequency of 2.4 GHz to 5 GHz conforming to the IEEE 802.11 wireless network communication protocol standard, and the central processing unit 21 is respectively connected with the audio and video output. The module 23 and the audio/video codec unit 24, the video and audio codec unit 24 is simultaneously connected to the video and audio output module 23, and the video output module 23 is played through various lines such as a signal line and a television, a projector, an audio, a speaker, and the like. The device 7 is connected for outputting an image and a sound signal, and a remote control module 25 is connected to the central processing unit 21, and the remote controller control module 25 is connected to the central processing unit 21 by a control unit 251, the control The unit 251 is connected to the infrared receiving unit 252 so as to be receivable by the infrared receiving unit 252. The infrared signal sent by the controller 3; the external processing unit 26 of the USB interface and the RJ-45 specification network cable slot is connected to the central processing unit 21 for externally plugging the hard disk HD, the portable memory card, and the network. Line, and the video and audio data is input to the central processing unit 21 for reading and processing, and is coded and processed by the audio/video codec unit 24, and then connected to the television, projector, audio, speaker, etc. by the audio/video output module 23 by signal lines. 7 Do the play.

The remote controller 3, as shown in the block diagram of the remote controller of the present invention, is provided with a control unit 31, and the control unit 31 is connected with an input unit 32, and the input unit 32 can be a general button. 321 or a mouse 322 corresponding to the operation computer 4, a rocker 323, etc., and a wireless transmitting unit 33 is connected to the control unit 31, and the wireless transmitting unit 33 is connected with an antenna 331 to enable the radio frequency to be transmitted by using the antenna 331 The signal is used to remotely operate the video transmitter 1 , and the infrared light emitting unit 35 is connected to the control unit 31 for remote operation of the video receiver 2 , and the control unit 31 is connected to the indication unit 34 . 34 can be a laser The module is configured to utilize the laser light emitted by the indicating unit 34 as a presentation indication. The invention is divided into two parts, one part is implemented in the wireless transmission connection method between the audio-visual transmitter 1 and the audio-visual receiver 2, and the other part is implemented in the control method of the remote control 3 between the audio-visual transmitter 1 and the video-audio receiver 2, when When the wireless transmission connection portion is implemented, the video transmitter 1 is used in the startup program. Please refer to FIG. 6 for the video transmitter usage flowchart of the present invention, where: S101: The audio transmitter 1 is powered on, starting action;

S102: The audio and video transmitter 1 performs its booting process;

S103: The audio and video transmitter 1 performs initial setting of the central processing unit 12;

S104: The audio and video transmitter 1 checks whether the network connection is completed. If the network connection is not completed, the process returns to S102 to re-execute the booting process, and if the network connection is completed, the next action is continued;

S105: The audio and video transmitter 1 is turned on;

S106: A video transmitter 1 selects a source of the input video signal;

S107: The audio and video transmitter 1 determines that the received video signal source is an analog video signal or a digital video signal. If it is determined that the analog video signal is performed, the S108 step is performed, and if it is determined to be a digital video signal, the step S109 is performed;

S108: If the source of the video signal is an analog video signal, the analog video signal is encoded into a corresponding digital video signal by using the audio/video codec unit 13;

S109: If the source of the video signal received by the video transmitter 1 is determined to be a digital video signal by S107, or the analog video signal is encoded into a corresponding digital video signal by S108, the digital video signal is compressed;

S110: packetizing the compressed digital video signal;

S111: The digital video signal after the packet is waiting to be transmitted;

S112: determining whether the video receiver 2 starts to receive the signal, if it has not started receiving, then returns to S111 to wait for transmission, and if the video receiver has started receiving, the process proceeds to S113; S113: according to the 802.11 wireless communication protocol The subsequent digital video signal is transmitted to the video receiver 2; S114: determining whether the video receiver 2 ends the reception of the signal, if the signal reception has not been completed, then returns to S113 to continue the transmission, and if the video receiver 2 has stopped the signal reception, the step S115 is performed;

S115: End the action of the video transmitter 1.

When the video receiver 2 is used in the startup program, please refer to FIG. 7 for the use of the video receiver of the present invention, where:

S201: The audio and video receiver 2 starts up and starts to operate;

S202: The video receiver 2 performs its booting process;

S203: The video receiver 2 performs initial setting of the central processing unit 21;

S204: The audio and video receiver 2 is turned on, and the user operation screen is displayed;

S205: The audio/video receiver 2 determines whether the user selects to perform the setting procedure, and if the user selects to perform the setting procedure, the process proceeds to S206, and if the user does not select to perform the setting procedure, the process proceeds to S207;

S206: The user performs a setting procedure, and after the setting is completed, returns to S204 and restarts the booting operation;

S207: determining whether the user selects to play the multimedia file connected to the external input unit 26, and if the multimedia file connected to the external input unit 26 is selected to be played, executing S2071, if the multimedia file connected to the external input unit 26 is not selected, Execute S208 step;

S2071: playing multimedia files (such as: video, picture, music, etc.) through the external input unit 26;

S2072: Decode the captured video signal;

S2073: converting the decoded video signal into an analog signal;

S2074: The analog signal is sent to the audio and video output module 23 for output playback;

S2075: It is judged whether the playback ends or not. If the playback is to be continued, the process returns to step S2071, and the steps S2071 to S2074 are repeated. If the playback ends, the process returns to S204.

S208: Determine whether the user chooses to play the received multimedia message transmitted by the audio and video transmitter 1. No., if the multimedia signal transmitted by the video transmitter 1 is selected, the S2081 step is performed, and if the multimedia signal transmitted by the video transmitter 1 is not selected, the process returns to S204.

S2081: receiving a packet digital video signal transmitted by the video transmitter 1 according to the 802.11 wireless communication protocol;

S2082: Decode the received video signal;

S2083: converting the decoded video signal into an analog signal;

S2084: The analog signal is sent to the audio and video output module 23 for output playback;

S2085: It is judged whether or not the playback is finished. If the playback is to be continued, the process returns to step S2081, and the steps S2081 to S2084 are repeated. If the playback ends, the process returns to S204.

In addition, the video transmitter 1 is connected to the computer 4, and the remote control radio module 15 controlled by the remote controller 3 is used in the startup program. Please refer to FIG. 8 for the remote control radio module of the present invention. , among them:

S1501 : Remote control RF module 15 The power is turned on and starts to operate;

S1502: The remote control radio frequency module 15 performs initial setting;

S1503: USB connector of remote control RF module 15 154 interface for initial setting;

S1504: The bus is reset;

S1505: Perform device enumeration;

S1506: Clear the packet data of each input unit 32 of the remote controller 3, such as: button 321, mouse 322, joystick 323, etc.;

S1507: Waiting for the remote control RF module 15 to receive the signal, if there is no reception, continue to wait, if there is a command signal sent by the wireless transmitting unit 33 of the remote controller 3, then S1508 is performed;

S1508: Convert the received data into a format;

S1509: storing the converted data into an endpoint buffer;

S1510: The start transmission function transmits data back to the computer 4 to control the computer 4 connected to the USB connector 154 of the remote control RF module 15, and returns to S1507 to wait for the remote control RF module 15 to receive the signal. When the present invention is implemented in the remote control device 3, when the remote controller 3 is used in the startup program, please refer to FIG. 9 for the remote controller usage flowchart of the present invention, where:

S301 : The remote control 3 starts up and starts to operate;

S302: The control unit 31 of the remote controller 3 performs initial setting;

S303: The wireless transmitting unit 33 of the remote controller 3 performs initial setting;

S304: When the user inputs an operation command, it is determined to be the computer 4 mode or the playback device 7 (eg, TV) mode, if the computer 4 mode is performed, the S3051 step is performed, and if the playback device 7 (eg, the television mode) is Perform S3061 step;

In the computer 4 mode, please refer to FIG. 10 together with the flow chart of the remote control application of the present invention in the computer mode, wherein:

S3051: Enter computer 4 mode;

S3052: It is judged whether the input unit 32 of the remote controller 3 has an instruction input, and if there is no instruction input, the input of the instruction is continuously waited, and if there is an instruction input, the step S3053 is performed;

S3053: It is judged whether the input command is the change mode, if it is the change mode, it returns to S3061, and if the input command is not the change mode, S3054 is performed;

S3054: Start the wireless transmitting unit 33;

S3055: The conversion input unit 32 corresponds to a protocol code, such as a button 321, a mouse 322, a joystick 323, and the like;

S3056: The remote control radio frequency module 15 connected to the video transmitter 1 and the computer 4 transmits an instruction to receive an instruction of the user to operate the remote controller 3 by the wireless receiving unit 152 of the remote control radio frequency module 15 to be connected to the USB connector 154. The computer 4 performs the corresponding command manipulation;

S3057: It is judged whether the information of the input unit 32 is stopped. If there is no stop, the process proceeds to S3055 to S3056, and if the information of the input unit 32 is stopped, the process proceeds to S3058.

S3058: Turn off the wireless transmitting unit 33, and return to S3052.

In the playback device 7 (eg, TV) mode, please refer to FIG. 11 for the use of the remote controller of the present invention in the television mode, where: S3061: Enter the playback device 7 (eg: TV) mode;

S3062: determining whether the input unit 32 of the remote controller 3 has an instruction input, and if there is no instruction input, continuously waiting for the input of the instruction, and if there is an instruction input, performing S3063 step;

S3063: It is judged whether the input command is the change mode, if it is the change mode, it returns to step S3051, and if the input command is not the change mode, S3064 is performed;

S3064: Start the infrared emitting unit 35;

S3065: The corresponding protocol code of the conversion button 321 position;

S3066: transmitting information to the video receiver 2 to receive the command of the user operating the remote controller 3 by the infrared receiving unit 252 of the remote controller control module 25 of the video receiver 2, and outputting the video output module 23 Go to the audio and video files of the playback device 7 (such as: TV) to select, play, fast forward, stop and other related operations;

S3067: It is judged whether the button 321 is released, if not released, the S3068 step is performed, and if the button 321 is released, the step S3069 is performed;

S3068: Transfer the repeated button 321 yards;

S3069: Turn off the infrared emission unit 35 and return to S3062.

In this way, please refer to FIG. 12 for a schematic diagram of the state of use of the present invention. For example, in general, various types of playback devices 7 such as a television, a projector, an audio, and a speaker are installed in an audio-visual room or a living room, and The computer 4 is placed in the study room, and the computer 4 is directly connected to the video transmitter 1 when the device is in use, and the playback device 7 and the video receiver 2 are connected to each other. The operation of the remote controller 3 enables the video transmitter 1 to be operated. The central processing unit 12 selects the designated signal source input by the multiplex interface input unit 11, and the video transmitter 1 encodes the video information in the computer 4, the connected multimedia player 5 or the network line by the video/audio encoding and decoding unit 13. Thereafter, the frequency signal converted to the IEEE 802.11 standard is processed by the wireless transmitting and receiving unit 14 to be transmitted by the antenna 141, and the wireless receiving and transmitting unit 22 of the video receiver 2 receives the wireless transmitting and receiving unit with the antenna 221. 14 A signal conforming to the IEEE 802.11 standard of the audio and video information transmitted by the antenna 141, that is, the video encoding and decoding unit 24 of the video receiver 2 can be solved. And then using the connection The playback device 7 is played back for viewing by the public; here, even when the computer 4 is set farther and is disposed in a different room from the playback device 7, since the screen of the playback device 7 is a computer with another room The 4 screens are the same, so you can get better presence and audio-visual enjoyment when watching movies and music through the higher-quality, high-quality and larger-screen playback device 7; In the game, since the video transmitter 1 is connected to the computer 4 by the USB connector 154, the remote controller 3 is controlled by the general button 321 of the input unit 32 or the mouse 322, the joystick 323, etc., the remote controller 3 The emitted radio frequency signal can be received by the antenna 153 of the remote control radio frequency module 15 on the AV transmitter 1, and the central processing unit 12 of the AV transmitter 1 can make the audio and video transmitter according to the command issued by the remote controller 3. The computer 4 to which the USB connector 154 of 1 is connected performs the corresponding action.

Further, please refer to FIG. 13 for a view of the state of use of the present invention. When the video transmitter 1 is connected to a multimedia player 5 such as a VCD or a DVD, the movie and music of the multimedia player 5 can be passed. The audio-visual transmitter 1 receives the video and audio data from the video receivers 2 of different places and different rooms in a one-to-many manner, and then plays them out by the connected playback device 7 to make them different places and different places. People in the room don't miss out on exciting programs because they have to deal with things.

The video receiver 2 is additionally provided with an external input unit 26 of a USB interface and an RJ-45 network line slot, in addition to the above-described wireless transmission of video and audio signals by the video transmitter 1 to be received by the video receiver 2 for playback. The other device inputs audio and video data to be processed by the central processing unit 21 and the audio/video codec unit 24, and then the signal line is connected through the video output module 23, played by the playback device 7, and the user can transmit the infrared light from the remote controller 3. The command signal sent by the unit 35 remotely operates the video and audio data connected by the external input unit 26 of the video receiver 2 to play, stop, fast forward, rewind, pause, etc., thereby increasing the practicality of the overall implementation. Convenience.

However, the above-described embodiments or the drawings do not limit the structural design and control method of the present invention, and any suitable changes or modifications made by those skilled in the art should be regarded as not departing from the present invention. The scope of the claims.

It can be seen from the above-described component composition and implementation description that the present invention clearly has the following advantages as compared with the prior art:

1. The present invention enables a personal computer device to wirelessly transmit video and audio information through an audio-visual transmitter, and is received by the audio-visual receiver and played by the playback device, and is not limited by the venue setting, so that the personal computer device is utilized. Appreciate, listen to audio and video information, or play games to get better visual and auditory effects, and increase the sense of presence and practical convenience.

2. The present invention enables the multimedia player to wirelessly transmit video and audio information through a video transmitter with one-to-many transmission, and is received by the audio-video receiver in different places and different rooms to play the same at the same time, so that it can Not limited by the setting, it not only makes it easier to install, but also avoids the damage of the beautiful signal lines connected to each other, and can increase its practical convenience.

3. The invention can be connected to a computer, a multimedia player or a network line by using a multiplex interface input unit in an audio-visual transmitter, so that the video signal is diversified and the scope of application is wider, and the value of the use is increased. .

4. The video player of the present invention has an external input unit of a USB interface and an RJ-45 network cable slot, so that it can input audio and video data by using other devices, and play it out through the playback device, and the user can The remote control remotely operates the video and audio data connected to the external input unit of the AV receiver, which further enhances the practicality and convenience of the overall implementation.

In summary, the embodiments and operating methods of the present invention can achieve the intended use efficiency, and the specific structure disclosed therein has not been seen in the same product, nor has it been disclosed before the application, and has completely complied with the patent. The provisions and requirements of the law, therefore, the application for invention patents in accordance with the law, pleading for review, and granting patents, it is really sensible.

Claims

Claim

An audio-visual radio broadcasting apparatus, wherein the video-audio radio broadcasting apparatus is mainly provided with an audio-visual transmitter, a video-audio receiver, and a remote controller; wherein:

The video transmitter has a multiplex interface input unit for inputting video and audio signals, and the multiplex interface input unit is connected with a central processing unit, and the central processing unit is connected with a video and audio codec unit, and the video and audio codec unit Connected to the multiplexed interface input unit, the central processing unit is further connected with a wireless transmitting and receiving unit, the wireless transmitting and receiving unit is connected with an antenna, and the central processing unit is further connected with a remote control radio frequency module, the remote controller The radio frequency module is connected to the central processing unit by a control unit, the control unit is connected to the wireless receiving unit, and the antenna is connected to the wireless receiving unit, and the USB connector is connected to the control unit;

The video receiver is provided with a central processing unit, the central processing unit is connected with a wireless receiving and transmitting unit, and the wireless receiving and transmitting unit is connected with an antenna, and the central processing unit is respectively connected with an audio and video output module and a video encoding and decoding unit, the video encoding and decoding unit is simultaneously connected to the audio and video output module, the audio and video output module is configured to output a video and audio signal, and the central processing unit is connected with a remote control module, and the remote controller controls The module is connected to the central processing unit by a control unit, and the control unit is connected with an infrared receiving unit;

The remote controller is provided with a control unit, the control unit is connected with an input unit, and a wireless transmitting unit is connected to the control unit, the wireless transmitting unit is connected with an antenna, and the infrared emitting unit is connected to the control unit.

The video-to-air radio broadcasting apparatus according to claim 1, wherein the central processing unit of the video receiver is connected to an external input unit.

3. A method for controlling an audio-visual radio broadcast device, wherein the method is implemented in an audio-visual transmitter and at least one video receiver, wherein the video transmitter and the video receiver are configured by using a wireless communication protocol. Connecting, the method implemented in the video transmitter includes at least the following steps:

(al) Perform boot initialization settings;

(a2) selecting the source of the input video signal; (a3) compressing the video signal;

(a4) enclosing the video signal;

(a5) transmitting the video and audio data of the packet to the video receiver according to the communication protocol;

And the method implemented in the video receiver includes at least the following steps:

(bl) perform boot initialization settings;

(b2) selecting the source of the video signal and executing it;

(b3) decoding the video and audio data;

(b4) converted to an analog signal;

(b5) The output to the AV output module is played by the playback device.

The video wireless broadcasting apparatus control method according to claim 3, wherein

(al) The step includes determining whether the network connection is complete.

The method of controlling an AV radio broadcast device according to claim 3, wherein the (a3) step further encodes the analog signal into a corresponding digital video signal.

The method of controlling an AV radio broadcast device according to claim 3, wherein said (b2) step comprises a user selection setting procedure.

The video wireless broadcasting apparatus control method according to claim 3, wherein the (b2) step comprises receiving packet data transmitted by the video transmitter according to a wireless communication protocol.

The audio-visual radio broadcast device control method according to claim 3, wherein the (b2) step comprises capturing a multimedia file of the external input unit.

A method for controlling an audio-visual radio broadcast device, characterized in that: the radio broadcast device comprises a video transmitter connected to a computer, and a remote controller for controlling the video transmitter, the method being implemented on the remote computer to execute a command, It includes the following steps:

The remote control RF module initialization setting of the audio and video transmitter;

Initialization setting of the USB connector of the AV transmitter;

Clearing the input unit packet data of the remote controller;

Waiting for the remote control RF module to receive data; Convert the received data format;

Store the converted data in the endpoint buffer;

Start the transfer function to transfer the data back to the computer.

10. A method for controlling an audio-visual radio broadcast device, characterized in that the radio broadcast device comprises an audio-visual transmitter, at least one video receiver and a remote controller, and the method comprises the following steps:

(a) remote control initialization settings;

(b) receiving the command and determining whether it is in the computer remote control mode or the remote control playback mode; performing the remote control mode on the computer, including:

(cl) determining an input unit instruction;

(c2) starting the wireless transmitting unit;

(c3) converting the input unit corresponding protocol code;

(c4) transmitting an instruction to the remote control RF module of the audio and video transmitter;

(c5) determining whether the input unit information is stopped;

And executing a remote control device mode step, including:

(dl) determine whether the button is pressed;

(d2) starting the infrared emitting unit;

(d3) converting the button position corresponding to the protocol code;

(d4) transmitting information to the video receiver;

(d5) Determine if the button command continues.

The audio-visual radio broadcast device control method according to claim 10, wherein the (cl) step comprises determining whether the input unit command is changed to the remote-play device mode.

The audio-visual radio broadcast device control method according to claim 10, wherein the input unit command in the (c3) step comprises command information from a mouse, a joystick, and a button of the remote controller.

The video and audio broadcasting apparatus control method according to claim 10, wherein the (dl) step comprises determining whether the input unit command is changed to a computer remote control mode.