CN115550594A - Extension function method of conference system and conference system with extension function - Google Patents
Extension function method of conference system and conference system with extension function Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
- H04N7/152—Multipoint control units therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
- H04N21/6181—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving transmission via a mobile phone network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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Abstract
The invention provides a conference system and an extended function method thereof, comprising the following steps: providing a first circuit board and a second circuit board which are arranged in a receiving device; receiving a first wireless packet transmitted by the first transmission device only through a second communication module in the second circuit board; a second processor in the second circuit board controls the second communication module to execute a decapsulation program on the first wireless packet so as to obtain first compressed audio-video data; and the second processor in the second circuit board generates an instruction signal so that the first processor in the first circuit board receives the first compressed audio-video data through the data channel and decodes the first compressed audio-video data so that the first processor obtains the first audio-video content of the first transmission device.
Description
Technical Field
The present invention relates to a method for extending functions of a conference system and a conference system having the same, and more particularly, to a method for extending functions of a conference system using at least one additional circuit board and a conference system thereof.
Background
With the technology, various projector systems and meeting reporting systems have been rapidly developed and applied to daily life. Meeting reporting systems may incorporate projector systems to increase the convenience of the reporter in presenting the data. Most of the current conference reporting systems are mainly based on wireless communication data transmission. The data transmission mode of wireless communication can be divided into two modes. In the first mode, the computer used by the members participating in the conference must be installed with specific software, and the computer can identify devices such as a hard disk, a Universal Serial Bus (USB), or a compact disk read-only memory (CD-ROM). And then, transmitting the data in the physical or virtual storage device to a screen or a display through a wireless network. In the second mode, the computers used by the members participating in the conference can be connected with the transmitting device, and after the transmitting device is connected with the screen or the display through the receiving device, the data in the computers can be put on the screen or the display. In recent years, conference reporting is performed by using a data transmission method of wireless communication, so that the operation efficiency and the convenience can be increased.
However, the hardware specification of the receiving device is required to meet the predetermined standard design and to meet the requirements of light weight, thin and power saving. Therefore, the hardware functionality of the receiving device may be limited by native hardware standards. When a user wants to expand the functions of the receiving device, the circuit and chip in the receiving device are often required to be redesigned. In other words, the receiving device cannot expand the hardware function in a simple manner based on native circuits. Therefore, when a user wants to add a new hardware function to the receiving device, the internal circuitry of the receiving device needs to be redesigned and fabricated, which results in high cost and additional fabrication time. Therefore, it is an important issue to develop a receiving apparatus that facilitates expanding hardware functions.
Disclosure of Invention
The invention provides a conference system and an extended function method thereof, which are used for solving the problems.
Based on the above objectives, the present invention provides an extended function method of a conference system, the conference system including a first transmitting device and a receiving device coupled to the first transmitting device, the method including: providing a first circuit board and a second circuit board which are arranged in the receiving device; receiving a first wireless packet transmitted from the first transmission device only through a second communication module in the second circuit board; the second processor in the second circuit board controls the second communication module to execute a decapsulation procedure on the first wireless packet to obtain first compressed video data; the second processor in the second circuit board generates an instruction signal to enable the first processor in the first circuit board to receive the first compressed video data through a data channel and decode the first compressed video data to enable the first processor to obtain the first video content of the first transmission device; wherein the first circuit board and the second circuit board are two separate circuit boards before connection.
Preferably, the method further comprises: receiving a second wireless packet transmitted from a second transmitting device only through the second communication module in the second circuit board; the second processor in the second circuit board controls the second communication module to execute the decapsulation procedure on the second wireless packet to obtain second compressed video data; the second processor in the second circuit board generates the command signal to make the first processor in the first circuit board receive the second compressed video data through the data channel and decode the second compressed video data to make the first processor obtain the second video content of the second transmission device.
Preferably, it further comprises: after the first processor obtains the first audio-video content and the second audio-video content, a picture segmentation and/or composition program is executed according to the first audio-video content and the second audio-video content to generate a composite audio-video content.
Preferably, it further comprises: after the first processor obtains the first audio-video content and the second audio-video content, the first audio-video content and the second audio-video content are transmitted to the second processor; and after the second processor obtains the first audio-video content and the second audio-video content, executing a picture segmentation and/or composition program according to the first audio-video content and the second audio-video content to generate a composite audio-video content.
Preferably, it further comprises: after the first processor obtains the first audio-video content and the second audio-video content, the first audio-video content and the second audio-video content are transmitted to the second processor; the second processor transmits the first video content or the second video content to the first video output port and/or the second video output port; wherein the second circuit board comprises the first audio/video output port and the second audio/video output port.
Preferably, the second communication module of the second circuit board supports a second wireless communication specification, the first communication module of the first circuit board supports a first wireless communication specification, and the second wireless communication specification is better than the first wireless communication specification.
Preferably, the first circuit board does not support a wireless communication function.
Preferably, it further comprises: connecting the first circuit board and the second circuit board to form an instruction channel and a data channel between the first circuit board and the second circuit board; the second circuit board includes a first audio/video output port and a second audio/video output port, and the first circuit board includes a third audio/video output port and a data output port.
Preferably, the first circuit board is a basic function board, the second circuit board is an extended function board, and the clock frequency of the first processor is greater than the clock frequency of the second processor.
Preferably, the first processor in the first circuit board receives the first compressed video data through the data channel, and comprises: the first processor in the first circuit board receives the first compressed video data forwarded by the second circuit board from a third circuit board through the data channel, and the third circuit board is coupled with the first circuit board and the second circuit board.
Based on the above object, the present invention further provides a conference system with an expandable function, which comprises:
a first circuit board comprising a first processor;
a second circuit board connected to the first circuit board, the second circuit board comprising: a second communication module; and a second processor coupled to the second communication module; and
the first transmission device is connected with the second circuit board;
the second processor in the second circuit board controls the second communication module to execute a decapsulation program on the first wireless packet so as to obtain first compressed video data; the second processor in the second circuit board generates an instruction signal to enable the first processor in the first circuit board to receive the first compressed video data through a data channel and decode the first compressed video data to enable the first processor to obtain the first video content of the first transmission device; and the first circuit board and the second circuit board are two separated circuit boards before connection.
Preferably, it further comprises:
the second transmission device is connected with the second circuit board;
wherein, the second circuit board only receives the second wireless packet transmitted from the second transmitting device through the second communication module, and the second processor in the second circuit board controls the second communication module to execute the decapsulation procedure on the second wireless packet to obtain the second compressed video data; the second processor in the second circuit board generates the command signal to make the first processor in the first circuit board receive the second compressed video data through the data channel and decode the second compressed video data to make the first processor obtain the second video content of the second transmission device.
Preferably, after the first processor obtains the first audio-visual content and the second audio-visual content, the first processor executes a picture segmentation and/or composition program according to the first audio-visual content and the second audio-visual content to generate a composite audio-visual content.
Preferably, after the first processor obtains the first audio-video content and the second audio-video content, the first audio-video content and the second audio-video content are transmitted to the second processor; and after the second processor obtains the first audio-video content and the second audio-video content, executing a picture segmentation and/or composition program according to the first audio-video content and the second audio-video content to generate a composite audio-video content.
Preferably, the second circuit board further comprises a first audio/video output port and a second audio/video output port, the first processor transmits the first audio/video content and the second audio/video content to the second processor after acquiring the first audio/video content and the second audio/video content, and the second processor transmits the first audio/video content or the second audio/video content to the first audio/video output port and/or the second audio/video output port.
Preferably, the first circuit board further comprises a first communication module, the first communication module is coupled to the first processor, the second communication module in the second circuit board supports a second wireless communication specification, the first communication module in the first circuit board supports a first wireless communication specification, and the second wireless communication specification is superior to the first wireless communication specification.
Preferably, the first circuit board does not support a wireless communication function.
Preferably, after the first circuit board and the second circuit board are connected, a command channel and a data channel are provided between the first circuit board and the second circuit board, the second circuit board further includes a first audio/video output port and a second audio/video output port, the first audio/video output port and the second audio/video output port are coupled to the second processor, the first circuit board further includes a third audio/video output port and a data output port, and the third audio/video output port and the data output port are coupled to the first processor.
Preferably, the first circuit board is a basic function board, the second circuit board is an extended function board, and the clock frequency of the first processor is greater than the clock frequency of the second processor.
Preferably, the first processor in the first circuit board receives the first compressed video data through the data channel, and comprises: the first processor in the first circuit board receives the first compressed video data forwarded by the second circuit board from a third circuit board through the data channel, and the third circuit board is coupled with the first circuit board and the second circuit board.
The conference system and the expansion method thereof provided by the invention have the basic function board and the expansion function board in the receiving device. The basic function board has general and basic hardware functions, and the extended function board has advanced hardware functions. In order to expand the functions of the conference system, the basic function board can deactivate part of the basic hardware functions and then control the expansion function board to execute advanced hardware functions. Also, the basic function board only needs to perform a function of decoding. In other words, in the conference system of the present invention, when the user wants to perform hardware function expansion, only the circuit board (expansion function board) with different functions is provided, and no matter what connection method is used, the conference system can execute any high-order hardware function or operation function under the condition that the basic function board only needs to execute the decoding function.
Drawings
Fig. 1 is a block diagram of an embodiment of a conference system with an extensible function according to the present invention.
Fig. 2 is a schematic diagram of data transmission in the conference system with the extensible function of fig. 1.
Fig. 3 is a schematic diagram of a first data transmission mode in which an additional circuit board is introduced to expand hardware functions in the conference system with the extensible function of fig. 1.
Fig. 4 is a diagram illustrating a second data transmission mode in which an additional circuit board is introduced to expand hardware functions in the conference system with expandable functions of fig. 1.
Fig. 5 is a flowchart of a method for executing an extended function in the conference system with an extensible function of fig. 1.
Detailed Description
In order to further understand the objects, structures, features, and functions of the present invention, the following embodiments are described in detail.
Fig. 1 is a block diagram of an embodiment of an extensible conference system 100 according to the present invention. For convenience of description, the conference system 100 will be hereinafter referred to. The conferencing system 100 comprises a first circuit board PCB1, a second circuit board PCB2 and at least one transmission device, such as a first transmission device TX1 and/or a second transmission device TX2. The first circuit board PCB1 may comprise a first processor CPU1 and a first communication module WF1. The first communication module WF1 may be a wireless communication module, such as a wireless fidelity (Wi-Fi) module or a Bluetooth module, for receiving wireless signals. The first processor CPU1 is coupled to the first communication module WF1. The second circuit board PCB2 is connected to the first circuit board PCB1. The second circuit board PCB2 may comprise a second communication module WF2 and a second processor CPU2. The second processor CPU2 is coupled to the second communication module WF2. The second communication module WF2 can be a wireless communication module, such as a wireless fidelity module or a Bluetooth module, for receiving wireless signals. Furthermore, the first communication module WF1 in the first circuit board PCB1 supports the first wireless communication specification. The second communication module WF2 in the second circuit board PCB2 supports the second wireless communication specification. The first wireless communication specification and the second wireless communication specification can be different versions of communication standards under the same protocol. For example, the second wireless communication specification may be a sixth generation wireless fidelity (Wi-Fi 6) specification. The first wireless communication specification may be a fifth generation wireless fidelity (Wi-Fi 5) specification. Moreover, the second wireless communication specification may be better than the first wireless communication specification. For example, the specifications of the sixth generation wireless fidelity protocol are superior to those of the fifth generation wireless fidelity protocol in terms of performance, transmission speed and noise immunity. In the conference system 100, the first circuit board PCB1 may be a basic function board. The definition of the basic function board is: when the conference system 100 is shipped from the factory, the circuit board conforms to the established standard and has a basic function. However, as hardware requirements increase, the first circuit board PCB1 may not be used. For example, the specification of the sixth generation wireless fidelity protocol has been a trend, but the first circuit board PCB1 supports only the specification of the fifth generation wireless fidelity protocol. Thus, the conference system 100 may introduce a second circuit board PCB2 to add additional hardware functionality. In other words, the second circuit board PCB2 is an extended function board. The clock frequency of the first processor CPU1 is greater than the clock frequency of the second processor CPU2. The second circuit board PCB2 may further include a first video output port HDMI21 and a second video output port HDMI22. The first and second output ports HDMI21 and HDMI22 may be High Definition Multimedia Interface (High Definition Multimedia Interface) output ports, but are not limited thereto. The second circuit board PCB2 may further include at least one data output port, such as a Universal Serial Bus (USB) output port USB21 and a USB22. Also, the first and second audio/video output ports HDMI21 and HDMI22 and at least one data output port (USB 21 and USB 22) of the second circuit board PCB2 are coupled to the second processor CPU2. The first circuit board PCB1 may further include a third video output port HDMI11 and a data output port USB11. The third audio/video output port HDMI11 can be a high-definition multimedia interface output port. The data output port USB11 can be a USB output port. The third audio/video output port HDMI11 and the data output port USB11 are coupled to the first processor CPU1. The first processor CPU1 of the first circuit board PCB1 and the second processor CPU2 of the second circuit board PCB2 can communicate with each other by using an instruction channel and a data channel. The first transmission device TX1 and/or the second transmission device TX2 are/is communicatively connected to the second circuit board PCB2.
In the conference system 100, a first circuit board PCB1 and a second circuit board PCB2 are provided in the receiving apparatus RX. Moreover, the second circuit board PCB2 receives the first wireless packet transmitted from the first transmission device TX1 only through the second communication module WF2. The second processor CPU2 in the second circuit board PCB2 controls the second communication module WF2 to execute a decapsulation procedure on the first wireless packet to obtain the first compressed video data. Then, the second processor CPU2 in the second circuit board PCB2 can generate an instruction signal to make the first processor CPU1 in the first circuit board PCB1 receive the first compressed audio-video data through the data channel, and decode the first compressed audio-video data to make the first processor CPU1 obtain the first audio-video content of the first transmission device TX1. In other words, in the conference system 100, although the first circuit board PCB1 is a basic function board and has a poor function, since the function expansion of the second circuit board PCB2 is introduced to assist the first circuit board PCB1, the first processor CPU1 of the first circuit board PCB1 only needs to perform the operation of data decoding. Therefore, even if the first processor CPU1 has a poor operation level, the conference system 100 can still be expanded in functionality with the aid of the second circuit board PCB2. The first circuit board PCB1 and the second circuit board PCB2 are two separate circuit boards before being connected. However, in other embodiments, the first processor CPU1 and the second processor CPU2 may be processors having the same operation level, and even the first processor CPU1 may have a stronger operation level than the second processor CPU2. Any reasonable variation of hardware is within the scope of the disclosure.
Fig. 2 is a schematic diagram of data transmission in the conference system 100 with the extensible function. The first transmitting device TX1 can be used for receiving any multimedia video source, such as a computer, a mobile phone, a video player, etc. It should be understood that the first transmission device TX1 and the computer are two separate devices before being connected. When the first transmission device TX1 is coupled to the computer, the first transmission device TX1 may be used to trigger the computer to transmit the audio/video to the first transmission device TX1. The first transmission device TX1 may also have information of Extended Display Identification Data (EDID) stored therein, so the first transmission device TX1 may also be regarded as a virtual Display device. After the first transmitting device TX1 receives the first multimedia video data, the first multimedia video data can be transmitted to the receiving device RX through the data path F1 by using the wireless network, as described in detail below. As mentioned above, the receiving apparatus RX has a first circuit board PCB1 and a second circuit board PCB2. The second processor CPU2 of the receiving apparatus RX may control the second communication module WF2 via the data path F2 to receive the first wireless packet corresponding to the first multimedia video data transmitted by the first transmitting apparatus TX1. The first wireless packet may include first configuration information (e.g., header information) of the wireless packet and first compressed video data. The second processor CPU2 of the receiving apparatus RX may further control the second communication module WF2 through the data path F2 to perform a decompression procedure on the first wireless packet, so as to extract a portion of the first compressed video data. After the first compressed audio-visual data is obtained, the second processor CPU2 in the second circuit board PCB2 may transmit the instruction signal to the first processor CPU1 in the first circuit board PCB1 through the data path F3. Here, the data path F3 may be considered as an instruction channel. After receiving the command signal, the first processor CPU1 may receive the first compressed video data through the data path F4. Here, the data path F4 may be regarded as a data channel. After the first processor CPU1 receives the first compressed audio/video data, the first compressed audio/video data can be decoded. Finally, the first processor CPU1 may transmit the decoded video data to the first display 10 through the data path F5 and the data path F6. Alternatively, the first processor CPU1 may transmit the decoded video data to the second circuit board PCB2 through the data path F4. Then, the second processor CPU2 in the second circuit board PCB2 transmits the decoded video data to the second display 11 through the data path F7. Any reasonable technical change or hardware replacement is within the scope of the present disclosure. For example, the first transmission device TX1 can transmit the decoded video data wirelessly through the application program by using the second communication module WF2. Alternatively, the conference system 100 may start an online conference mode, and combine, integrate, or display the multimedia contents of two or more transmission apparatuses side by side. Alternatively, the conference system 100 may incorporate a plurality of receiving devices. Multiple receiving devices may be interconnected to each other using a network. The first transmission device TX1 may transmit the decoded video data to another receiving device via the second communication module WF2 for data sharing. The connection mode of the two receiving devices can be Wi-Fi Direct (Wi-Fi Direct) or Internet Protocol (Internet Protocol) address Direct (IP-NAT).
In the conference system 100, the receiving apparatus RX may be simultaneously wired to a plurality of transmitting apparatuses. For example, the receiving apparatus RX may be connected to the first transmitting apparatus TX1 and the second transmitting apparatus TX2 at the same time. The interaction between the second transmitter TX2 and the receiver RX is similar to the interaction between the first transmitter TX1 and the receiver RX, and is described as follows. The second circuit board PCB2 receives the second wireless packet transmitted from the second transmission device TX2 only through the second communication module WF2. The second processor CPU2 in the second circuit board PCB2 controls the second communication module WF2 to execute a decapsulation procedure on the second wireless packet to obtain the second compressed video data. Then, the second processor CPU2 in the second circuit board PCB2 can generate an instruction signal to make the first processor CPU1 in the first circuit board PCB1 receive the second compressed audio-video data through the data channel, and decode the second compressed audio-video data to make the first processor CPU1 obtain the second audio-video content of the second transmission device TX2. In other words, in the conference system 100, although the first circuit board PCB1 is a basic function board and has a poor function, since the function expansion of the second circuit board PCB2 is introduced to assist the first circuit board PCB1, the first processor CPU1 of the first circuit board PCB1 only needs to perform the operation of data decoding. Therefore, even if the first processor CPU1 has a poor operation level, the conference system 100 can still be expanded in functionality with the aid of the second circuit board PCB2.
After the conference system 100 obtains the first audio/video content and the second audio/video content, a frame splitting and/or synthesizing procedure may be performed to generate a synthesized audio/video content, as described below. As mentioned above, the first audio/video content and the second audio/video content can be obtained by the first processor CPU1 after decoding. In the first mode, after the first processor CPU1 obtains the first audio-video content and the second audio-video content, it can execute a frame splitting and/or synthesizing program according to the first audio-video content and the second audio-video content to generate a synthesized audio-video content. In other words, in the first mode, the screen segmentation and/or composition procedure is executed by the first processor CPU1. However, as mentioned above, if the first processor CPU1 has a weak computing power, the frame splitting and/or combining procedure can be executed with the assistance of the second processor CPU2. For example, in the second mode, after the first processor CPU1 obtains the first and second audio/video contents, the first and second audio/video contents may be transmitted to the second processor CPU2. After the second processor CPU2 obtains the first audio/video content and the second audio/video content, it can execute a frame division and/or composition program according to the first audio/video content and the second audio/video content to generate a composite audio/video content. In other words, in the second mode, the screen division and/or composition program is executed by the second processor CPU2. The first processor CPU1 and the second processor CPU2 of the conference system 100 may each independently execute operations or may execute operations in cooperation with each other. Any reasonable technical variations are within the scope of the disclosure. In the first circuit board PCB1, the first communication module WF1 may be omitted. In other words, when the first circuit board PCB1 does not support the wireless communication function, the conference system 100 can utilize the second communication module WF2 in the second circuit board PCB2 for wireless data access. In addition, the first audio/video content and the second audio/video content can also be transmitted wirelessly through the application program by using the second communication module WF2. Alternatively, the conference system 100 may start an online conference mode, and combine, integrate, or display the multimedia contents of two or more transmission apparatuses side by side. Alternatively, the conference system 100 may incorporate a plurality of receiving devices. Multiple receiving devices may be interconnected to each other using a network. The first audio/video content and the second audio/video content can be transmitted to another receiving device through the second communication module WF2 for data sharing. The connection mode of the two receiving devices can be Wi-Fi direct connection or Internet protocol address direct connection. The conference system 100 may also perform audio-visual separation processing. For example, the sound effect parts of the first and second audio/video contents can be processed by the second processor CPU2. Then, the processed sound effect part can be transmitted to the display through the connection port. For example, the processed sound effect part can be transmitted to the second display 11 connected to the second video output port HDMI22 through the second processor CPU2 to provide sound effect of the output image. Similarly, for example, the processed sound effect portion may be transferred back to the first processor CPU1 via the second processor CPU2. Therefore, the first processor CPU1 can transmit the processed audio part to the first display 10 connected to the third video output port HDMI11 to provide the audio of the output image. The conference system 100 may also select whether the audio is output according to the output video (provided by the first transmission device TX1, the second transmission device TX2, or both the first transmission device TX1 and the second transmission device TX 2). Alternatively, the conference system 100 may select whether the audio effect is output according to the audio effect mode.
Fig. 3 is a schematic diagram of a first data transmission mode in which an additional circuit board is introduced to expand hardware functions in the conference system 100 with expandable functions. Fig. 4 is a diagram illustrating a second data transmission mode in which an additional circuit board is introduced to expand hardware functions in the conference system 100 with expandable functions. The additional circuit board shown in fig. 3 and 4 is herein referred to as a third circuit board PCB3. The first circuit board PCB1, the second circuit board PCB2 and the third circuit board PCB3 of fig. 3 may be in a serial mode. That is, the third circuit board PCB3 may be coupled to the first circuit board PCB1, and the second circuit board PCB2 is coupled to the first circuit board PCB1 through the third circuit board PCB3. The second circuit board PCB2 and the third circuit board PCB3 of fig. 4 may be independently coupled to the first circuit board PCB1. Since the second circuit board PCB2 and the third circuit board PCB3 of fig. 4 are independently coupled to the first circuit board PCB1, the first circuit board PCB1 can simultaneously expand more than two hardware functions. In fig. 4, the operation modes of the first circuit board PCB1 and the third circuit board PCB3 and the operation modes of the first circuit board PCB1 and the second circuit board PCB2 are similar to the above embodiments, and therefore, the detailed description thereof will be omitted. In fig. 3, since the third circuit board PCB3 is coupled to the first circuit board PCB1 and the second circuit board PCB2, the third circuit board PCB3 can perform a function of data forwarding (Relay). In other words, after the second communication module WF2 in the second circuit board PCB2 decapsulates the packet and obtains the first compressed video data, the first processor CPU1 in the first circuit board PCB1 can receive the first compressed video data forwarded by the second circuit board PCB2 from the third circuit board PCB3 through the data channel. In fig. 3 and 4, the third circuit board PCB3 may be similar to the second circuit board PCB2. For example, the second circuit board PCB2 may include a first video output port HDMI21 and a second video output port HDMI22, and the first processor CPU1 may transmit the first video content and the second video content to the second processor CPU2 after obtaining the first video content and the second video content. The second processor CPU2 transmits the first video content or the second video content to the first video output port HDMI21 and/or the second video output port HDMI22. Similarly, the third circuit board PCB3 may include a fourth video output port HDMI31 and a fifth video output port HDMI32, and the first processor CPU1 may obtain the first video content and the second video content and transmit the first video content and the second video content to the third processor CPU3. The third processor CPU3 transmits the first video content or the second video content to the fourth video output port HDMI31 and/or the fifth video output port HDMI32. In one embodiment, the second circuit board PCB2 may be an expansion board of a wireless communication network, as mentioned above, and the second communication module WF2 therein may be of a specification of a sixth generation wireless fidelity (Wi-Fi 6), so that the specification of the first communication module WF1 in the base board may be upgraded. The third circuit board PCB3 may be an expansion board of the output port, for example, the third circuit board PCB3 may have a specific number of HDMI connection ports, so that it can be considered as upgrading the compatibility of the connection ports built in the base board. The second circuit board PCB2 and the third circuit board PCB3 may have independent processors or share one processor. The common processor may be arranged in the second circuit board PCB2 or in the third circuit board PCB3. In other words, in the conference system 100, when a user wants to perform hardware function expansion, only circuit boards (expansion function boards) with different functions are provided, and no matter what connection method is used, the conference system 100 can perform any high-level hardware function or operation function under the condition that the basic function board only needs to perform decoding.
Also, the internal structure of the extended function board (second circuit board PCB 2) of the conference system 100 can be changed in a rational manner. For example, the second circuit board PCB2 may include an audio/video separation module. The audio/video separation module may be an independent hardware circuit coupled to the second processor CPU2, or may be implemented in the second processor CPU2 by software. The second circuit board PCB2 may further include an image output port and a sound output port. The image output port and the sound output port can be coupled to the video/audio separation module. The video and audio separation module can separate video and audio of any multimedia data. For example, after the first processor CPU1 obtains the first audio-video content, the first processor CPU1 may utilize the audio-video separation module to perform audio-video separation on the first audio-video content to generate the first image data and the first sound data. After the first image data and the first voice data are generated, the audio-video separation module transmits the first image data to the image output port. The audio/video separation module transmits the first audio data to the audio output port. Alternatively, after the first video data and the first audio data are generated, the conference system 100 may mask the first video data or the first audio data according to the setting of the user, so as to generate the black screen/mute effect.
Fig. 5 is a flowchart of a method for executing the extended function in the conference system with the extensible function 100. The process of the conference system 100 executing the extended function method includes steps S501 to S504. Any reasonable technical variations are within the scope of the disclosure. The description of step S501 to step S504 is as follows.
Step S501: providing a first circuit board PCB1 and a second circuit board PCB2 arranged in the receiving device RX;
step S502: receiving a first wireless packet transmitted by a first transmission device TX1 only through a second communication module WF2 in a second circuit board PCB2;
step S503: a second processor CPU2 in the second circuit board PCB2 controls the second communication module WF2 to execute a decapsulation program on the first wireless packet so as to obtain first compressed audio-video data;
step S504: the second processor CPU2 in the second circuit board PCB2 generates an instruction signal to make the first processor CPU1 in the first circuit board PCB1 receive the first compressed audio-video data through the data channel, and decodes the first compressed audio-video data to make the first processor CPU1 obtain the first audio-video content of the first transmission device TX1.
The details of steps S501 to S504 are already described in detail above, and therefore will not be described herein again. In the conference system 100, since the second circuit board PCB2 is introduced to expand additional functions, the first circuit board PCB1 only needs to maintain the function of decoding. Thus, the conferencing system 100 can expand the hardware functionality in a convenient manner.
In summary, the present invention describes a conference system with an extensible function. The receiving device of the conference system is internally provided with a basic function board and an expansion function board. The basic function board has general and basic hardware functions, and the extended function board has advanced hardware functions. In order to expand the functions of the conference system, the basic function board can deactivate part of the basic hardware functions and then control the expansion function board to execute advanced hardware functions. And, the basic function board only has to perform a function of decoding. In other words, in the conference system of the present invention, when the user wants to perform hardware function expansion, only the circuit board (expansion function board) with different functions is provided, and no matter what connection method is used, the conference system can execute any high-order hardware function or operation function under the condition that the basic function board only needs to execute the decoding function.
The present invention has been described in relation to the above embodiments, which are only examples of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (20)
1. A method for extending functionality of a conferencing system, the conferencing system comprising a first transmitting device and a receiving device coupled to the first transmitting device, the method comprising:
providing a first circuit board and a second circuit board which are arranged in the receiving device;
receiving a first wireless packet transmitted by the first transmission device only through a second communication module in the second circuit board;
the second processor in the second circuit board controls the second communication module to execute a decapsulation program on the first wireless packet to obtain first compressed video data; and
the second processor in the second circuit board generates an instruction signal to enable the first processor in the first circuit board to receive the first compressed audio-video data through a data channel and decode the first compressed audio-video data to enable the first processor to obtain first audio-video content of the first transmission device;
wherein the first circuit board and the second circuit board are two separate circuit boards before connection.
2. The method of claim 1, further comprising:
receiving a second wireless packet transmitted by a second transmitting device only through the second communication module in the second circuit board;
the second processor in the second circuit board controls the second communication module to execute a decapsulation program on the second wireless packet to obtain second compressed video data;
the second processor in the second circuit board generates an instruction signal to enable the first processor in the first circuit board to receive the second compressed audio-video data through the data channel and decode the second compressed audio-video data to enable the first processor to obtain the second audio-video content of the second transmission device.
3. The method of claim 2, further comprising:
after the first processor obtains the first audio-video content and the second audio-video content, a picture segmentation and/or synthesis program is executed according to the first audio-video content and the second audio-video content to generate a synthesized audio-video content.
4. The method of claim 2, further comprising:
after the first processor obtains the first audio-video content and the second audio-video content, the first audio-video content and the second audio-video content are transmitted to the second processor; and
after the second processor obtains the first audio-video content and the second audio-video content, the second processor executes a picture segmentation and/or composition program according to the first audio-video content and the second audio-video content to generate a composite audio-video content.
5. The method of claim 2, further comprising:
after the first processor obtains the first audio-video content and the second audio-video content, the first audio-video content and the second audio-video content are transmitted to the second processor; and
the second processor transmits the first video content or the second video content to the first video output port and/or the second video output port;
wherein the second circuit board comprises the first audio/video output port and the second audio/video output port.
6. The method of claim 1, wherein the second communication module of the second circuit board supports a second wireless communication specification, the first communication module of the first circuit board supports a first wireless communication specification, and the second wireless communication specification is better than the first wireless communication specification.
7. The method of claim 1, wherein the first circuit board does not support wireless communication functionality.
8. The method of claim 1, further comprising:
connecting the first circuit board and the second circuit board to enable an instruction channel and a data channel to be arranged between the first circuit board and the second circuit board;
the second circuit board includes a first audio/video output port and a second audio/video output port, and the first circuit board includes a third audio/video output port and a data output port.
9. The method of claim 1, wherein the first circuit board is a basic function board, the second circuit board is an extended function board, and a clock frequency of the first processor is greater than a clock frequency of the second processor.
10. The method of claim 1, wherein the first processor in the first circuit board receives the first compressed video data via the data channel, and specifically comprises: the first processor in the first circuit board receives the first compressed audio-video data forwarded by the second circuit board through the data channel by a third circuit board, and the third circuit board is coupled with the first circuit board and the second circuit board.
11. An expandable conference system, comprising:
a first circuit board comprising a first processor;
a second circuit board connected to the first circuit board, the second circuit board comprising:
a second communication module; and
the second processor is coupled to the second communication module; and
the first transmission device is connected to the second circuit board;
the first circuit board and the second circuit board are arranged in the receiving device, the second circuit board only receives a first wireless packet transmitted by the first transmitting device through the second communication module, and the second processor in the second circuit board controls the second communication module to execute a packet unpacking program on the first wireless packet so as to obtain first compressed audio-video data; the second processor in the second circuit board generates an instruction signal to enable the first processor in the first circuit board to receive the first compressed audio-video data through a data channel and decode the first compressed audio-video data to enable the first processor to obtain first audio-video content of the first transmission device; and the first circuit board and the second circuit board are two separated circuit boards before connection.
12. The system of claim 11, further comprising:
the second transmission device is connected with the second circuit board;
the second circuit board receives a second wireless packet transmitted from the second transmission device only through the second communication module, and the second processor in the second circuit board controls the second communication module to execute a packet unpacking program on the second wireless packet so as to obtain second compressed audio-video data; the second processor in the second circuit board generates an instruction signal to enable the first processor in the first circuit board to receive the second compressed audio-video data through the data channel and decode the second compressed audio-video data to enable the first processor to obtain the second audio-video content of the second transmission device.
13. The system of claim 12, wherein the first processor performs a frame splitting and/or composition procedure to generate a composite audio/video content according to the first audio/video content and the second audio/video content after obtaining the first audio/video content and the second audio/video content.
14. The system of claim 12, wherein the first processor transmits the first and second audio/video content to the second processor after obtaining the first and second audio/video content; and after the second processor obtains the first audio-video content and the second audio-video content, executing a picture segmentation and/or composition program according to the first audio-video content and the second audio-video content to generate a composite audio-video content.
15. The system of claim 12, wherein the second circuit board further comprises a first audio/video output port and a second audio/video output port, the first processor transmits the first audio/video content and the second audio/video content to the second processor after acquiring the first audio/video content and the second audio/video content, and the second processor transmits the first audio/video content or the second audio/video content to the first audio/video output port and/or the second audio/video output port.
16. The system of claim 11, wherein the first circuit board further comprises a first communication module, the first communication module is coupled to the first processor, the second communication module in the second circuit board supports a second wireless communication specification, the first communication module in the first circuit board supports a first wireless communication specification, and the second wireless communication specification is better than the first wireless communication specification.
17. The system of claim 11, wherein the first circuit board does not support wireless communication functionality.
18. The system of claim 11, wherein after the first circuit board and the second circuit board are connected, the first circuit board and the second circuit board have a command channel and a data channel therebetween, the second circuit board further comprises a first audio/video output port and a second audio/video output port, the first audio/video output port and the second audio/video output port are coupled to the second processor, the first circuit board further comprises a third audio/video output port and a data output port, and the third audio/video output port and the data output port are coupled to the first processor.
19. The system of claim 11, wherein the first circuit board is a basic function board, the second circuit board is an extended function board, and the clock frequency of the first processor is greater than the clock frequency of the second processor.
20. The system of claim 11, wherein the first processor in the first circuit board receives the first compressed video data via the data channel, and specifically comprises: the first processor in the first circuit board receives the first compressed audio-video data forwarded by the second circuit board through the data channel by a third circuit board, and the third circuit board is coupled with the first circuit board and the second circuit board.
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