TWI631853B - Audiovisual control apparatus, and associated method - Google Patents

Abstract

The present invention provides an audio-visual control device and a method thereof, which are applicable to an audio-visual system, and the audio-visual control device includes: a decompression circuit for decompressing a multimedia signal to generate image data and sound data corresponding to one channel An audio decoding circuit for decoding the sound data to generate decoded data corresponding to the channel, wherein the decoded data is stored in a memory of the audiovisual system; a playback circuit is used to Reading the decoded data to play the decoded data; and a channel output control circuit for reading the decoded data from the memory to output the decoded data to at least one wireless connection a mobile electronic device for allowing the at least one mobile electronic device to acquire and play the decoded data.

Description

Video and audio control device and method thereof

The present invention relates to a user-configurable home theater, and more particularly to an audio-visual control device and related method applicable to an audio-visual system such as a television or a display having a sound output control function.

Due to advances in technology, television has become a fairly popular electronic product; however, related technologies tend to focus on improvements in display modules (such as display panels) in television, while ignoring the design of sound output. For example, in a television case, the display module typically occupies a large portion of the limited space, while other parts such as speakers are only allocated to a small space. Because there is not enough space, the size of the speaker is limited, so that the sound of the TV is not good. For another example, according to a certain type of design, the size of the display module seen from the front of the TV is almost the same as the size of the casing, so the speaker may be located behind the TV. When the direction of the speaker output sound is not appropriate, the sound of the TV is sacrificed. For another example, in the case where the space of the casing of the television is limited, at most two speakers are provided; this is only to meet the basic requirements of stereo.

Based on the inherent limitations of television, the design of TV sound effects in related technologies has encountered bottlenecks. As a result, existing televisions cannot provide sound effects such as home theaters. Therefore, a novel architecture and method is needed to enhance the sound of the TV.

One of the objects of the present invention is to provide a video and audio control apparatus and related method applicable to an audio-visual system such as a television or a display to solve the above problems.

At least one embodiment of the present invention provides a video and audio control device that can be applied to an audio-visual system (such as a television or a display). The audio-visual control device can include a decompression circuit for decompressing a multimedia signal to generate an image. Data and sound data corresponding to one channel; an audio decoding circuit for decoding the sound data to generate decoded data corresponding to the channel, wherein the decoded data is stored in one of the audio and video systems a playback circuit for reading the decoded data from the memory to play the decoded data; and a channel output control circuit for reading the decoded data from the memory to pass at least one The wireless connection outputs the decoded data to the at least one mobile electronic device to allow the at least one mobile electronic device to acquire and play the decoded data.

At least one embodiment of the present invention provides a method for operating a video and audio control device, the video and audio control device being applicable to a video and audio system, the method comprising the steps of: decompressing a circuit using one of the video and audio control devices Compressing a multimedia signal to generate image data and sound data corresponding to one channel; decoding the sound data by using one of the audio and video decoding devices to generate decoded data corresponding to the channel, wherein the The decoding data is stored in a memory of the audio-visual system; and the playback circuit reads the decoded data from the memory to play the decoded data; and utilizes the audio-visual control device The one channel output control circuit reads the decoded data from the memory to output the decoded data to the at least one mobile electronic device through the at least one wireless connection, to allow the at least one mobile electronic device to acquire and play the decoded data. data.

One of the advantages of the present invention is that the video control device and related method of the present invention can be applied to an audio-visual system (such as a television system or a display) to allow a user to arbitrarily utilize a plurality of mobile electronic devices as home theater accessories, wherein The AV control device can configure the AV system together with the mobile electronic devices into a home theater having a multi-channel sound output function. As a result, user experience has improved. In addition, based on the video and audio control apparatus and related method of the present invention, the user can have a home theater configurable by the user, and the problem in the related art can be reduced or eliminated by the user.

The present invention provides a video and audio control device, and a method for operating the video and audio control device (hereinafter simply referred to as "the method"). The video control device can be applied to a television, and the video control device can establish a wireless connection between the television and various mobile electronic devices to allow the mobile electronic devices to function as audio output (AO) devices of the television. The audio-visual control device can separately output sound data corresponding to different channels to the mobile electronic devices, so that the television together with the mobile electronic devices is configured as a home theater with multi-channel sound output to greatly enhance the television Sound quality. The above mobile electronic devices may be, for example, but not limited to: a multi-function mobile phone, a tablet computer, and a Bluetooth speaker.

FIG. 1 is a schematic diagram of a television according to an embodiment of the invention. As shown in FIG. 1, the television 10 includes a display panel 11, a memory 20, a network chip 33, speakers 41 and 42, and a video and audio control device 100. The display panel 11 can be a liquid crystal display panel, the memory 20 can be a dynamic random access memory, and the audio and video control device 100 can be implemented as a control chip, such as a system on chip (SoC). . The network chip 33 can be used to make wireless network connections, such as Wi-Fi connections. For example, the network chip 33 can operate in accordance with predetermined instructions to provide network services to the audio-visual system 10 to allow the audio-visual system 10 to communicate with external devices via a wireless network connection. In addition, the mobile electronic devices 43 and 44 may be electronic devices having a wireless network connection function, such as a multi-function mobile phone, and/or a tablet computer. These mobile electronic devices can be configured as external sound output devices of the audio-visual system 10 under the control of the video-audio control device 100.

As shown in FIG. 1, the video and audio control device 100 may include a decompression circuit 110, a video processing circuit 111, a parsing circuit 120, audio decoding circuits 121 and 122, a playback circuit 112, and a channel output control circuit 130. For example, the decompression circuit 110 can be a decompressor that conforms to one or more video compression specifications, such as the Motion Picture Experts Group (MPEG) specification. The decompression circuit 110 decompresses a multimedia signal to generate image data and sound data corresponding to a plurality of channels, such as left and right channels, respectively. The video processing circuit 111 can perform video processing on the image data to generate the display material DATA_V for display by the display panel 11. In addition, the parsing circuit 120 may parse the sound data respectively corresponding to the plurality of channels to provide the sound data to a plurality of audio decoding circuits respectively corresponding to the plurality of channels, such as respectively corresponding to Two audio decoding circuits 121 and 122 on the left and right channels. In addition, the audio decoding circuits 121 and 122 can respectively decode the sound data to generate decoded data DATA_L(0) and DATA_R(0) corresponding to the left and right channels, respectively, and decode the data DATA_L(0) and DATA_R ( 0) Stored in the memory 20. For example, the audio decoding circuits 121 and 122 may be decoders that conform to one or more audio encoding specifications, such as the Advanced Audio Coding (AAC) specification. In this embodiment, the playback circuit 112 and the channel output control circuit 130 can read the decoded data DATA_L(0) and DATA_R(0) stored in the memory 20, wherein the decoded data DATA_L read by the playback circuit 112 ( 1) DATA_R(1) is equivalent to the decoded data DATA_L(0) and DATA_R(0), respectively, and the decoded data DATA_L(2) and DATA_R(2) read by the channel output control circuit 130 are respectively equivalent to the decoded data DATA_L ( 0) and DATA_R(0). The playback circuit 112 can play the decoded data DATA_L(1) and DATA_R(1) read by it to output the sounds of the left and right channels through the speakers 41 and 42, respectively. The channel output control circuit 130 can output the decoded data DATA_L(2) and DATA_R(2) read by the channel to the mobile electronic devices 43 and 44 through the two wireless network connections, respectively, to allow the mobile electronic devices 43 and 44 respectively. The decoded data DATA_L(2) and DATA_R(2) are obtained and played.

According to the embodiment, the channel output control circuit 130 can use the network chip 33 to establish the wireless network connections between the television 10 and the mobile electronic devices 43 and 44, and maintain the wireless network connections to allow the action. The electronic devices 43 and 44 respectively acquire and play the decoded data DATA_L(2) and DATA_R(2). For example, the channel output control circuit 130 can control the network chip 33 to establish the two network connections between the television 10 and the mobile electronic devices 43 and 44 through one or more predetermined commands, and maintain these network connections.

Details of the implementation of establishing these network connections are further described below. The channel output control circuit 130 can perform dynamic device allocation on the mobile electronic devices 43 and 44 by using the network chip 33 to establish the network connections respectively corresponding to different protocol ports. The television 10 and the mobile electronic devices 43 and 44 are provided as a system having multi-channel sound output. For example, the channel output control circuit 130 can perform at least one scanning operation using the network chip 33 to find the mobile electronic devices 43 and 44, and establish the network connections and configure the mobile electronic devices 43 and 44 one by one to two protocols. Thus, the channel output control circuit 130 can use the network chip 33 to maintain the network connections corresponding to the two protocols, respectively, to allow the mobile electronic devices 43 and 44 to obtain and play corresponding decodings through the protocols respectively. The data, such as the decoded data DATA_L(2) of the left channel and the decoded data DATA_R(2) of the right channel.

2 is a flow chart of a method 200 for operating a video and audio control device in accordance with an embodiment of the present invention, wherein the method 200 can be used as an example of the method.

In step 210, the video and audio control device 100 decompresses the multimedia signal by using the decompression circuit 110 to generate the image data and the sound data corresponding to one channel. For example, the channel can represent the left channel, and the sound data can represent the sound material corresponding to the left channel. For another example, the channel can represent the right channel, and the sound data can represent the sound material corresponding to the right channel.

In step 220, the video and audio control device 100 decodes the sound data by using an audio decoding circuit to generate decoded data corresponding to the channel. For example, the audio-visual control device 100 can decode the sound data corresponding to the left channel by using the audio decoding circuit 121 to generate the decoded data DATA_L(0) corresponding to the left channel, and store the decoded data DATA_L(0) in the memory. Body 20. For example, the video and audio control device 100 can decode the sound data corresponding to the right channel by using the audio decoding circuit 122 to generate the decoded data DATA_R(0) corresponding to the right channel, and store the decoded data DATA_R(0) in Memory 20.

In step 230, the video and audio control device 100 reads the decoded data from the memory 20 by using the playback circuit 112 to play the decoded data. For example, the audio-visual control device 100 can read the decoded data DATA_L(0) corresponding to the left channel from the memory 20 as the decoded data DATA_L(1) read by the playback circuit 112 by using the playback circuit 112 to play the decoded data DATA_L ( 1). For example, the video and audio control device 100 can read the decoded data DATA_R(0) corresponding to the right channel from the memory 20 by using the playback circuit 112 as the decoded data DATA_R(1) read by the playback circuit 112 to play the decoded data DATA_R. (1).

In step 240, the video control device 100 reads the decoded data from the memory 20 by using the channel output control circuit 130 to output the decoded data to at least one mobile electronic device through at least one wireless connection to allow the at least A mobile electronic device acquires and plays the decoded data. For example, the video and audio control device 100 can use the channel output control circuit 130 to read the decoded data DATA_L(0) corresponding to the left channel from the memory 20 as the decoded data DATA_L(2) read by the channel output control circuit 130. The network connection between the television 10 and the mobile electronic device 43 outputs the decoded data DATA_L(2) to the mobile electronic device 43 to allow the mobile electronic device 43 to acquire and play the decoded data DATA_L(2). For example, the video and audio control device 100 can use the channel output control circuit 130 to read the decoded data DATA_R(0) corresponding to the right channel from the memory 20 as the decoded data DATA_R(2) read by the channel output control circuit 130. The decoded data DATA_R(2) is output to the mobile electronic device 44 via the network connection between the television 10 and the mobile electronic device 44 to allow the mobile electronic device 44 to acquire and play the decoded data DATA_R(2).

According to certain embodiments, the steps shown in Figure 2 can be varied. For example, at least some of steps 210, 220, 230, and 240 can be performed simultaneously. For another example, when the operation of one of steps 210, 220, 230, and 240 proceeds, another step can begin. For another example, one or more steps can be added or modified.

FIG. 3 illustrates an arrangement of the method 200 shown in FIG. 2 in one embodiment. For example, the television 10 and the mobile electronic devices 43 and 44 can be arranged roughly around the user. Thus, the user can stay (e.g., stand or sit) between the television 10 and the mobile electronic devices 43 and 44 to enjoy the home theater.

The architecture shown in FIG. 1 may vary depending on certain embodiments, wherein method 200 may vary correspondingly as various examples of the method. For example, the audio-visual control device 100 can include at least one processor, and the circuits in the audio-visual control device 100 can be implemented as a plurality of program modules executed on the processor, wherein the plurality of program modules can be pre-stored in one Non-volatile memory, and can be loaded into the processor to effect operation of the AV control device 100, such as in the above-described embodiments. For another example, the AV control device 100 can include at least one customized wafer, and the circuits in the AV control device 100 can be implemented as a plurality of sub-circuits in the customized wafer to implement the operation of the AV control device 100, such as The operation in the above examples. For another example, the network chip 33 can be replaced by one or more Bluetooth chips, and the network connections can be replaced by one or more Bluetooth connections, wherein the number of channels can be changed. For another example, the network chip 33 and the at least one Bluetooth chip may be present in the television 10, and the wireless connections may include one or more network connections and one or more Bluetooth connections, wherein the number of channels Can be changed. As another example, at least one wafer (such as a network chip 33 or a Bluetooth chip) can be integrated into the AV control device 100. For another example, the memory 20 can be integrated into the video and audio control device 100.

According to some embodiments, the number of mobile electronic devices may increase, and the number of wireless connections may increase correspondingly. For example, the mobile electronic device 43 can be replaced by a first set of mobile electronic devices, and the channel output control circuit 130 can decode the data DATA_L through a first set of network connections between the television 10 and the first set of mobile electronic devices. (2) outputting to the first set of mobile electronic devices to allow the first set of mobile electronic devices to acquire and play the decoded data DATA_L(2). In particular, the channel output control circuit 130 can perform the dynamic device configuration on the first set of mobile electronic devices by using the network chip 33 to establish and maintain the first set of network connections respectively corresponding to a first set of protocols. To allow the first set of mobile electronic devices to obtain and play the decoded data DATA_L(2) through the first set of protocols, wherein any one of the first set of protocols is different from each other. For another example, the mobile electronic device 44 can be replaced by a second set of mobile electronic devices, and the channel output control circuit 130 can decode the data through a second set of network connections between the television 10 and the second set of mobile electronic devices. DATA_R(2) is output to the second set of mobile electronic devices to allow the second set of mobile electronic devices to acquire and play the decoded data DATA_R(2). In particular, the channel output control circuit 130 can perform the dynamic device configuration on the second set of mobile electronic devices by using the network chip 33 to establish and maintain the second set of network connections respectively corresponding to a second set of protocols. The second set of mobile electronic devices are allowed to obtain and play the decoded data DATA_R(2) through the second set of protocols, wherein any two of the second set of protocols are different from each other. Please note that any of the first set of agreements is different from any of the second set of agreements. In addition, the mobile electronic devices can be arranged roughly around the user. Thus, the user can stay (e.g., stand or sit) between the television 10 and the mobile electronic devices to enjoy the home theater.

According to some embodiments, the number of users may be greater than one. For example, multiple users may bring their own mobile electronic devices (eg, mobile electronic devices 43 and 44; for example, the first set of mobile electronic devices and the second set of mobile electronic devices). Thus, the users can stay between the television 10 and the mobile electronic devices to enjoy the home theater.

According to some embodiments, the memory 20 can be used to store buffered data. For the sake of brevity, the buffer path for accessing buffer data may not be shown. The main data paths can be drawn between the circuits at each level to indicate the processing order of the relevant operations, such as the processing order in the architecture shown in Figure 1. For example, the image data and sound data generated by the decompression operation of the decompression circuit 110 can be temporarily stored in the memory 20 for use by subsequent circuits such as the video processing circuit 111 and the parsing circuit 120. For another example, the channel output control circuit 130 can perform buffer control by the memory 20 to cause the television 10 to output the decoded data DATA_L(2) and DATA_R(2) to the corresponding mobile electronic devices 43 and 44, respectively.

For the sake of easy understanding, in the above embodiment, the television 10 having the display panel 11 is used as an example of the audio-visual system, but the present invention is not limited thereto. According to some embodiments, the video control device 100 can be provided in any of various types of audio and video systems, such as other types of televisions, or various displays having sound output control functions. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧ TV
11‧‧‧ display panel
20‧‧‧ memory
33‧‧‧Network Chip
41, 42‧‧‧ Speakers
43, 44‧‧‧Mobile electronic devices
100‧‧‧Video control device
110‧‧‧Decompression circuit
111‧‧‧Video Processing Circuit
112‧‧‧Playing circuit
120‧‧‧analysis circuit
121, 122‧‧‧ audio decoding circuit
130‧‧‧Channel output control circuit
210‧‧‧Steps for decompression using decompression circuit
220‧‧‧Steps of decoding using audio decoding circuit
230‧‧‧Steps for reading decoded data for playback using a playback circuit
240‧‧‧Steps for reading decoded data using the channel output control circuit for output
DATA_L(0), DATA_R(0), DATA_L(1), DATA_R(1), DATA_L(2), DATA_R(2)‧‧‧ Decode data
DATA_V‧‧‧Display data

FIG. 1 is a schematic diagram of a television according to an embodiment of the invention. 2 is a flow chart of a method for operating a video and audio control device in accordance with an embodiment of the present invention. FIG. 3 is a diagram showing an arrangement of the method shown in FIG. 2 in an embodiment.

Claims (18)

An audio-visual control device is applicable to an audio-visual system, the audio-visual control device includes: a decompression circuit for decompressing a multimedia signal to generate image data and sound data corresponding to one channel; and an audio decoding a circuit for decoding the sound data to generate decoded data corresponding to the channel, wherein the decoded data is stored in a memory of the audio and video system; and a playback circuit is configured to read from the memory Decoding data to play the decoded data; a channel output control circuit for reading the decoded data from the memory to output the decoded data to at least one mobile electronic device through at least one wireless connection And the parsing circuit is configured to parse the sound data respectively corresponding to the plurality of channels to respectively correspond to the plurality of channels. The sound data is provided to a plurality of audio decoding circuits respectively corresponding to the plurality of channels, wherein the plurality of audio decoding circuits include the sound a decoding circuit, and the plurality of channels include the channel. The video control device of claim 1, wherein the at least one wireless connection comprises at least one network connection between the audio-visual system and the at least one mobile electronic device; and the channel output control circuit utilizes the The network chip of the video system maintains the at least one network connection to allow the at least one mobile electronic device to acquire and play the decoded data. The video control device of claim 2, wherein the at least one wireless connection comprises a plurality of wireless connections; the plurality of wireless connections comprise the at least one network connection, and the audio and video system further comprises a Bluetooth connection between another mobile electronic device; The channel output control circuit maintains the Bluetooth connection by using a Bluetooth chip of the audio-visual system, and outputs the decoded data to the other mobile electronic device through the Bluetooth connection to allow the other mobile electronic device to acquire and play The decoding data. The video control device of claim 2, wherein the at least one mobile electronic device comprises a plurality of mobile electronic devices, and the at least one wireless connection comprises a plurality of wireless communication systems between the audiovisual system and the plurality of mobile electronic devices And the channel output control circuit uses the network chip to maintain the plurality of network connections to allow the plurality of mobile electronic devices to acquire and play the decoded data. The video control device of claim 1, wherein the at least one wireless connection comprises at least one Bluetooth connection between the audio-visual system and the at least one mobile electronic device; and the channel output control circuit Maintaining the at least one Bluetooth connection by using at least one Bluetooth chip of the audio-visual system to allow the at least one mobile electronic device to acquire and play the decoded data. The video control device of claim 5, wherein the at least one Bluetooth chip comprises a plurality of Bluetooth chips, the at least one mobile electronic device comprises a plurality of mobile electronic devices, and the at least one wireless connection comprises the audio and video system And a plurality of Bluetooth connections between the plurality of mobile electronic devices; and the channel output control circuit uses the plurality of Bluetooth chips to maintain the plurality of Bluetooth connections to allow the plurality of mobile electronic devices to acquire and play the plurality of Bluetooth devices data. A video and audio control device applicable to an audio-visual system, the audio-visual control device comprising: a decompression circuit for decompressing a multimedia signal to generate image data and sound data corresponding to one channel; an audio decoding circuit for decoding the sound data to generate decoded data corresponding to the channel The decoding data is stored in a memory of the audio-visual system; a playback circuit is configured to read the decoded data from the memory to play the decoded data; and a channel output control circuit Reading the decoded data from the memory to output the decoded data to the at least one mobile electronic device through the at least one wireless connection, to allow the at least one mobile electronic device to acquire and play the decoded data; The at least one mobile electronic device includes a plurality of mobile electronic devices, and the at least one wireless connection includes a set of network connections between the audio-visual system and one of the plurality of mobile electronic devices; and the channel The output control circuit uses a network chip of the video system to perform dynamic device configuration on the set of mobile electronic devices (dynamic device alloca And establishing the network connection corresponding to different protocol ports to set the audio-visual system and the plurality of mobile electronic devices into a system having multi-channel sound output. An audio-visual control device is applicable to an audio-visual system, the audio-visual control device includes: a decompression circuit for decompressing a multimedia signal to generate image data and sound data corresponding to one channel; and an audio decoding a circuit for decoding the sound data to generate decoded data corresponding to the channel, wherein the decoded data is stored in a memory of the audio and video system; and a playback circuit is configured to read from the memory Decoding the data to play the decoded data; a channel output control circuit for reading the decoded data from the memory to output the decoded data to the at least one mobile electronic device through at least one wireless connection, to allow the at least one mobile electronic device to acquire and play The decoded data, wherein the at least one mobile electronic device comprises a plurality of mobile electronic devices, and the at least one wireless connection comprises a set of networks between the audiovisual system and one of the plurality of mobile electronic devices And the channel output control circuit uses the network chip of the video system to maintain the set of network connections respectively corresponding to a set of protocol ports to allow the set of mobile electronic devices to pass through the group The protocol retrieves and plays the decoded data corresponding to the channel, wherein any of the set of protocols is different from each other. The video control device of claim 8, wherein the channel output control circuit uses the network chip to maintain another set of network connections respectively corresponding to another set of protocols to allow another set of mobile electronic devices. The device obtains and plays decoded data corresponding to another channel through the other set of protocols, respectively, wherein any one of the other sets of protocols is different from each other. A method for operating a video and audio control device, the video and audio control device being applicable to a video and audio system, the method comprising the steps of: decompressing a multimedia signal by using a decompression circuit of the video control device to generate image data And sound data corresponding to one channel; decoding the sound data by using one of the audio and video decoding devices to generate decoded data corresponding to the channel, wherein the decoded data is stored in the audio and video system In a memory, using one of the audio and video control devices to read the decoded data from the memory to play the decoded data; Using the channel output control circuit of the video control device to read the decoded data from the memory to output the decoded data to the at least one mobile electronic device through at least one wireless connection to allow the at least one mobile electronic device The device obtains and plays the decoded data; and parses the sound data corresponding to the plurality of channels by using one of the audio and video control devices to respectively correspond to the sound data of the plurality of channels Provided to the plurality of audio decoding circuits respectively corresponding to the plurality of channels, wherein the plurality of audio decoding circuits comprise the audio decoding circuit, and the plurality of channels comprise the channel. The method of claim 10, wherein the at least one wireless connection comprises at least one network connection between the audio-visual system and the at least one mobile electronic device; and the channel output control circuit utilizes the audio-visual system One of the network chips maintains the at least one network connection to allow the at least one mobile electronic device to retrieve and play the decoded data. The method of claim 11, wherein the at least one wireless connection comprises a plurality of wireless connections; the plurality of wireless connections comprise the at least one network connection, and the audio and video system further comprises another a Bluetooth connection between the mobile electronic device; and the channel output control circuit uses the Bluetooth chip of the audio and video system to maintain the Bluetooth connection, and outputs the decoded data to the other through the Bluetooth connection Mobile electronic device to allow the other mobile electronic device to acquire and play the decoded data. The method of claim 11, wherein the at least one mobile electronic device comprises a plurality of mobile electronic devices, and the at least one wireless connection comprises a plurality of networks between the audiovisual system and the plurality of mobile electronic devices Road connection; and the channel output control circuit utilizes the network The circuit chip maintains the plurality of network connections to allow the plurality of mobile electronic devices to acquire and play the decoded data. The method of claim 10, wherein the at least one wireless connection comprises at least one Bluetooth connection between the audiovisual system and the at least one mobile electronic device; and the channel output control circuit utilizes the At least one Bluetooth chip of the audio-visual system maintains the at least one Bluetooth connection to allow the at least one mobile electronic device to acquire and play the decoded data. The method of claim 14, wherein the at least one Bluetooth chip comprises a plurality of Bluetooth chips, the at least one mobile electronic device comprises a plurality of mobile electronic devices, and the at least one wireless connection comprises the audiovisual system and the a plurality of Bluetooth connections between the plurality of mobile electronic devices; and the channel output control circuit uses the plurality of Bluetooth chips to maintain the plurality of Bluetooth connections to allow the plurality of mobile electronic devices to capture and play the decoded data. A method for operating a video and audio control device, the video and audio control device being applicable to a video and audio system, the method comprising the steps of: decompressing a multimedia signal by using a decompression circuit of the video control device to generate image data And sound data corresponding to one channel; decoding the sound data by using one of the audio and video decoding devices to generate decoded data corresponding to the channel, wherein the decoded data is stored in the audio and video system In a memory, using one of the audio and video control devices to read the decoded data from the memory to play the decoded data; and using one of the video control devices to output a control circuit from the memory Read the decoding Transmitting, by the at least one wireless connection, the decoded data to the at least one mobile electronic device, to allow the at least one mobile electronic device to acquire and play the decoded data; wherein the at least one mobile electronic device comprises a plurality of mobile electronic devices And the at least one wireless connection comprises a set of network connections between the audio-visual system and one of the plurality of mobile electronic devices; and the channel output control circuit utilizes a network of the audio-visual system The circuit chip performs a dynamic device allocation on the set of mobile electronic devices to establish the set of network connections respectively corresponding to different protocol ports to associate the audiovisual system with the plurality of actions The electronic device is set up as a system with multi-channel sound output. A method for operating a video and audio control device, the video and audio control device being applicable to a video and audio system, the method comprising the steps of: decompressing a multimedia signal by using a decompression circuit of the video control device to generate image data And sound data corresponding to one channel; decoding the sound data by using one of the audio and video decoding devices to generate decoded data corresponding to the channel, wherein the decoded data is stored in the audio and video system In a memory, using one of the audio and video control devices to read the decoded data from the memory to play the decoded data; and using one of the video control devices to output a control circuit from the memory Reading the decoded data to output the decoded data to the at least one mobile electronic device through the at least one wireless connection, to allow the at least one mobile electronic device to acquire and play the decoded data; wherein the at least one mobile electronic device Include a plurality of mobile electronic devices, and the at least one wireless connection includes the audio-visual system and the complex A group of mobile electronic devices one of a set of network connection between the mobile electronic device; and control circuit using one of the output channel of the audio network system wafer Maintaining the set of network connections respectively corresponding to a set of protocol ports to allow the set of mobile electronic devices to obtain and play the decoded data through the set of protocols, wherein any two of the set of agreements People are different from each other. The method of claim 17, wherein the channel output control circuit uses the network chip to maintain another set of network connections respectively corresponding to another set of protocols to allow another set of mobile electronic devices to respectively The decoded data corresponding to the other channel is obtained and played through the other set of protocols, wherein either of the other sets of protocols is different from each other.