WO2021168649A1

WO2021168649A1 - Multifunctional receiving device and conference system

Info

Publication number: WO2021168649A1
Application number: PCT/CN2020/076590
Authority: WO
Inventors: 钟毅
Original assignee: 深圳市乐橙互联有限公司
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2021-09-02
Also published as: CN111386700A

Abstract

The embodiments of the present invention provide a multifunctional receiving device. The multifunctional receiving device comprises a receiving module, a mode identification module, a screen projection decoding module, a video decoding module, a transmission module, and a control module; the multifunctional receiving device is connected to a first terminal by means of an HDMI interface and a USB interface; and the receiving module, the mode identification module, the screen projection decoding module, the video decoding module, and the transmission module are connected to the control module. The multifunctional receiving device transmits data information to the first terminal by means of the HDMI interface, which can be realized without installing software in the first terminal, having high transmission efficiency; in addition, the multifunctional receiving device can not only realize a wireless screen projection function, but also can realize a remote video conference function, having various functions. In addition, a conference system is also provided.

Description

Multifunctional receiving equipment and conference system

Technical field

The present invention relates to the field of wireless communication technology, in particular to a multifunctional receiving device and a conference system.

Background technique

With the development of science and technology, intelligent conference systems are becoming more and more common, and conferences are divided into local conferences and remote conferences according to the scene. Local meetings refer to meetings held in the same place. In order to improve convenience, local meetings often use wireless projection to project the screen of the local computer onto a large screen for display. In order to achieve wireless projection, wireless projection is needed. Screen equipment.

technical problem

Traditional wireless projection equipment generally uses USB wireless projection equipment for projection. However, this projection method requires the installation of projection software on the terminal connected to the wireless projection equipment to achieve low efficiency and traditional wireless projection. The screen device has a single function.

Technical solutions

In view of this, the present invention provides a multifunctional receiving device and conference system with high screen projection efficiency and multiple functions.

A multifunctional receiving device, the multifunctional receiving device includes: a receiving module, a pattern recognition module, a projection screen decoding module, a video decoding module, a transmission module, and a control module. The multifunctional receiving device communicates with each other through an HDMI interface and a USB interface The first terminal is connected;

The receiving module, the pattern recognition module, the projection decoding module, the video decoding module, and the transmission module are respectively connected to the control module;

The receiving module is configured to receive data information sent by the second terminal, and the data information includes: a data transmission mode;

The pattern recognition module is connected to the receiving module, and is used to identify the data transmission mode in the data information to obtain a pattern recognition result;

The projection decoding module is connected to the pattern recognition module, and is configured to decode the projection information in the received data information when the pattern recognition result is a projection mode to obtain target projection information;

The video decoding module is connected to the pattern recognition module, and is configured to decode the video information in the received data information when the pattern recognition result is a video mode to obtain target video information;

The transmission module is connected to the projection decoding module, and is configured to use a first preset protocol to transmit the target projection information to the first terminal through the HDMI interface, so that the first terminal displays the State the target projection information;

The transmission module is connected to the video decoding module, and is configured to use a second preset protocol to transmit the target video information to the first terminal through the HDMI interface, so that the first terminal displays the target Video information.

In one of the embodiments, the receiving module includes: a long-distance wireless receiving module and a short-distance wireless receiving module, the long-distance wireless receiving module is used to receive data information containing video information sent by the second terminal through the server, The short-range wireless receiving module is used for receiving data information containing projection information sent by the second terminal.

In one of the embodiments, the long-range wireless receiving module is a mobile communication module, and the short-range wireless receiving module is a Bluetooth module or a WIFI module.

In one of the embodiments, the multifunctional receiving device further includes: a first format conversion module and a second format conversion module, the first format conversion module is respectively connected with the projection decoding module and the control module, The second format conversion module is respectively connected to the video decoding module and the control module; the first format conversion module is used to convert the target screen information obtained by decoding when the format of the target screen information does not meet the preset format requirements The format of the target projection information is converted into a target projection format; the second format conversion module is configured to convert the format of the video projection information when the format of the target video information obtained by decoding does not meet the preset format requirements The format is converted to the target video format.

In one of the embodiments, the multifunctional receiving device further includes: a switch module, the switch module is respectively connected to the transmission module and the control module, and is used to control the transmission module to start or stop transmitting the first Screen projection information in one format or video information in the second format.

In one of the embodiments, the multifunctional receiving device further includes: a switching module, the switching module is respectively connected to the receiving module and the control module, and is configured to, when simultaneously receiving projection information and video information, Control the receiving module to select and receive screen projection information and/or video information.

In one of the embodiments, the second preset protocol is the RTP protocol, and the first preset protocol is the Airplay protocol or the Chromecast protocol or the Miracast protocol or the DLNA protocol.

In one of the embodiments, a conference system is proposed, including: the multi-function receiving device, the first terminal, and the second terminal in any of the above embodiments, the multi-function receiving device is connected to the first terminal, The multifunctional receiving device and the second terminal are connected through short-range wireless communication.

In one of the embodiments, a conference system is proposed, including: the multi-function receiving device, the first terminal, the second terminal, and the sending device in any of the above embodiments, the multi-function receiving device and the first Terminal connection, the sending device is connected to the second terminal through the HDMI interface and the USB interface, and is used to receive the projection information transmitted by the second terminal, encode the projection information, and send the encoded data information to all述 Multifunctional receiving equipment.

In one of the embodiments, a conference system is proposed, including: the multifunctional receiving device in any of the above embodiments, a first terminal, a local second terminal, a remote second terminal, and a server, the multifunctional receiving device Is connected to the first terminal, the remote second terminal is connected to the server through a network, the server is connected to the multifunctional receiving device through the network, and the local second terminal is connected to the multifunctional receiving device through Short-range wireless communication connection.

Beneficial effect

The above-mentioned multifunctional receiving device includes: a receiving module, a pattern recognition module, a projection decoding module, a video decoding module, a transmission module, and a control module. The multifunctional receiving device is connected to the first terminal through an HDMI interface and a USB interface; the receiving The module, the pattern recognition module, the projection decoding module, the video decoding module, and the transmission module are respectively connected with the control module. The multifunctional receiving device receives the data information through the receiving module, and then recognizes the data transmission mode in the data information through the pattern recognition module. When the recognition result is the projection mode, it decodes the projection information in the received data information into The projection information in the first format, when the recognition result is the video mode, the video information in the received data information is decoded into the video information in the second format, and then the projection information or video information is transmitted to the first format through the transmission module. Terminal for display. The multi-function receiving device decodes the data information through the built-in projection decoding module and video decoding module, and then transmits the data information to the first terminal through the HDMI interface. It can realize wireless projection without installing additional software on the first terminal. Screen, high transmission efficiency. Further, the multifunctional receiving device can not only realize the wireless projection function, but also realize the remote video conference function, and has various functions. During a meeting, when both local wireless projection and remote video connection are needed, there is no need to switch between devices, just select on the multi-function receiving device. The operation is simple and convenient. The function receiving device can not only realize the free switching of wireless projection and remote video, but also can display the wireless projection and remote video in split screen at the same time.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a structural block diagram of a multifunctional receiving device in an embodiment;

Figure 2 is a structural block diagram of a multifunctional receiving device in another embodiment;

Figure 3 is a structural block diagram of a multifunctional receiving device in another embodiment;

Figure 4 is a schematic diagram of a conference system in an embodiment;

Figure 5 is a schematic diagram of a conference system in another embodiment;

Figure 6 is a schematic diagram of a conference system in another embodiment;

Fig. 7 is a schematic diagram of the internal structure of a multifunctional receiving device in an embodiment.

Embodiments of the present invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In order to illustrate the technical solutions of the present invention, specific embodiments are used for description below.

Figure 1 is a multifunctional receiving device 10 provided by an embodiment of the present invention. The multifunctional receiving device 10 includes: a receiving module 102, a pattern recognition module 104, a projection decoding module 106, a video decoding module 108, a transmission module 110, and a control module 112. The multifunctional receiving device is connected to the first terminal 20 through an HDMI interface and a USB interface. The HDMI interface is used to transmit data information, and the USB interface is used to transmit instruction information; the receiving module 102, the pattern recognition module 104, and the projection decoding module 106, The video decoding module 108 and the transmission module 110 are respectively connected to the control module 112;

The receiving module 102 is used to receive the data information sent by the second terminal 30. The data information includes: data transmission mode; the pattern recognition module 104 is connected to the receiving module 102 and is used to identify the data transmission mode in the data information to obtain pattern recognition The result; the projection decoding module 106 is connected to the pattern recognition module 104, and is used to decode the projection information in the received data information when the pattern recognition result is the projection mode to obtain the target projection information; the video decoding module 108 It is connected to the pattern recognition module 104, and is used to decode the video information in the received data information when the pattern recognition result is the video mode to obtain the target video information; the transmission module 110 is connected to the projection decoding module 106 for use The first preset protocol transmits the target screen information to the first terminal through the HDMI interface, so that the first terminal displays the screen information; the transmission module 110 is connected to the video decoding module 108, and is used to transfer the target video using the second preset protocol The information is transmitted to the first terminal through the HDMI interface, so that the first terminal displays video information.

Wherein, the receiving module 102 is configured to receive data information sent by a second terminal, the second terminal is a data sending end, and the first terminal is a data receiving end. The multi-function receiving device 20 includes HDMI (High Definition A Multimedia Interface (high-definition multimedia) interface and a USB interface, the multifunctional receiving device 10 and the first terminal 20 are connected through the HDMI interface and the USB interface. The HDMI interface is used to transmit data information, and the USB interface is used to transmit command information. At the same time, the multifunctional receiving device 10 can be powered through the USB interface.

Since the HDMI interface is a multimedia data transmission interface, data information can be directly transmitted to the first terminal through the HDMI interface, without the need to install additional software on the first terminal, which is simple and convenient, and helps to improve transmission efficiency.

The receiving module 102 can receive both local projection information and remote video information. The source of the information received by the receiving module 102 is different, and the data transmission mode contained therein is different, so the type of data information is determined according to the data transmission mode. The projection information can be static pictures, dynamic videos, etc. If the current display information is a dynamic video, and the dynamic video is accompanied by voice, the multifunctional receiving device simultaneously receives the voice information synchronized with the projection information of the second terminal.

The pattern recognition module 104 is used for recognizing the data transmission mode in the data information, and the data information includes the data transmission mode. In one embodiment, different signs are used in the data information to represent the data transmission mode of the information. For example, there may be 0 for local projection information and 1 for remote video information. By recognizing the data transmission mode in the data information, the pattern recognition result is obtained. The pattern recognition result is divided into: projection mode and video mode. The projection mode represents local projection, and the video mode represents remote video.

When the projection mode is recognized, the projection information in the received data information is decoded into the projection information in the first format through the projection decoding module 106; when the video mode is recognized, the video decoding module 108 will receive the projection information The video information in the data information is decoded into video information in the second format. The first format and the second format can be the same or different. In one embodiment, the second preset protocol is an RTP protocol, where RTP (Real-time Transport Protocol (Real-time Transport Protocol) protocol is used for audio and video transmission. The first preset protocol is the Airplay protocol or the Chromecast protocol or the Miracast protocol or the DLNA protocol.

In this embodiment, international standards are used for decoding. For static pictures, MPEG series standards (such as MPEG-1, MPEG-2, MPEG-4, MPEG-7 and MPEG-21, etc.) can be used for decoding. For dynamic videos, H.261, H.263, H.264, H.265, etc. are used for decoding. In this embodiment, the dynamic video is preferably decoded according to the H.265 standard, which is compared with H.261, H.263, H. The 264 standard has the advantages of high compression rate, fast transmission rate and high decompression pixels, which can make the delay after wireless projection shorter and the picture quality clearer. Of course, other decoding standards can also be selected in this embodiment, which is not specifically limited in this embodiment.

The transmission module 110 is responsible for transmitting the decoded projection information in the first format or video information in the second format from the multifunctional receiving device 10 to the first terminal 20 through the HDMI interface, so that the first terminal 20 can display it.

The control module 112 is respectively connected with the receiving module 102, the pattern recognition module 104, the projection decoding module 106, the video decoding module 108, and the transmission module 110, and is used for receiving data information sent by each module and sending control instructions to each module. For example, the control receiving module 102 sends the received data information to the pattern recognition module 104, and then sends the data information to the projection decoding module 106 or the video decoding module 108 according to the pattern recognition result 104, and then controls the transmission module 110 to decode the decoded data. The information is transmitted to the first terminal 20.

The above-mentioned multi-function receiving device can not only realize the wireless projection function, but also realize the remote video conference function. When the meeting is in progress, there is no need to switch between the devices, only the multi-function receiving device needs to be selected. The operation is simple and convenient, and the multifunctional receiving device can not only realize free switching between wireless projection and remote video, but also can display wireless projection and remote video in split screen at the same time. In addition, the data information is decoded by the built-in projection decoding module and video decoding module of the multifunctional receiving device, and transmitted to the first terminal through the HDMI interface, and remote video display can be performed without installing additional software on the first terminal. In addition, for users, multiple functions can be realized by purchasing only one product, which is conducive to reducing costs.

In one embodiment, the receiving module includes: a long-distance wireless receiving module and a short-distance wireless receiving module, the long-distance wireless receiving module is used to receive data information containing video information sent by the second terminal through the server, and the short-distance wireless receiving module It is used to receive data information containing projection information sent by the second terminal.

Among them, since the projection information is generally transmitted at a short distance, the receiving module receives the projection information through the short-distance receiving module, while the video information is transmitted over a long distance, and the receiving module can receive it through the long-distance receiving module.

In one embodiment, the long-range wireless receiving module is a mobile communication module, and the short-range wireless receiving module is a Bluetooth module or a WIFI module.

Among them, the mobile communication module can be a 3G/4G/5G module. The short-range wireless receiving module can be a Bluetooth module, a WIFI module or a Zigbee module.

As shown in FIG. 2, in one embodiment, the multifunctional receiving device 10 further includes: a first format conversion module 202, a second format conversion module 204, the first format conversion module 202 is respectively connected with the projection decoding module 106 and the control module 112 connection, the second format conversion module 204 is respectively connected to the video decoding module 108 and the control module 112; the first format conversion module is used to project the target when the decoded target projection information does not meet the preset format requirements The format of the screen information is converted into the target screen format; the second format conversion module is used to convert the format of the video screen information into the target video format when the format of the decoded target video information does not meet the preset format requirements.

Wherein, after the multi-function receiving device receives the screen projection information of the second terminal, since the platforms of the first terminal and the second terminal are uncertain, the screen projection information of the second terminal may not be able to be screened normally on the first terminal. Therefore, The decoded projection information needs to be processed first to make its format meet the requirements of the first terminal. The first format conversion module is used to convert target projection information that does not conform to the preset format into target projection information that conforms to the preset format, that is, to convert the format of the target projection information into the target projection format; the second format conversion module uses To convert the target video information that does not meet the preset format into the target video information that meets the preset format, that is, to convert the format of the target video information to the target video format. For example, the format of the projection information received by the multifunctional receiving device is .png format, the target format supported by the first terminal is .JPG format, and the first format conversion module in the multifunctional receiving device uses a built-in preset conversion protocol, Convert the .png projection information to the .JPG target format projection information.

As shown in FIG. 3, in one embodiment, the multifunctional receiving device 10 further includes: a switch module 114, which is respectively connected to the transmission module 110 and the control module 112, and is used to control the transmission module to start or stop transmitting the first format The projection information or the second format video information.

Among them, the switch module is used to control the start or stop transmission of projection information or video information. The switch module can be controlled in the form of buttons, and the user can choose to start or stop the transmission of information by pressing the buttons. In one embodiment, a switch button may be provided on the multifunctional receiving device 10, and the switch button corresponds to the switch module. When the switch button is pressed, the switch module controls the start of information transmission. The switch module is connected to the transmission module 110 and the control module 112.

3, in one embodiment, the multifunctional receiving device 10 further includes: a switching module 116, which is connected to the receiving module 102 and the control module 112, respectively, and is used to simultaneously receive projection information and video information, Control the receiving module to choose to receive projection information and/or video information.

Among them, the switching module 116 is used to control the received data information. When there are both projection information and video information at the same time, the switching module 116 can be used to select whether to receive the projection information or the video information. Of course, you can also choose to receive both at the same time. Simultaneous display on the first terminal, that is, a split-screen simultaneous display mode can be adopted. The switching module 116 is connected to the receiving module 102 and is also connected to the control module 112 at the same time.

As shown in FIG. 4, in one embodiment, a conference system is proposed, including: a multi-function receiving device 10, a first terminal 20, and a second terminal 30. The multi-function receiving device 10 is connected to the first terminal 20. The function receiving device 10 and the second terminal 30 are connected through short-range wireless communication.

Among them, in a conference screen projection scenario, the conference system only needs to include: the multifunctional receiving device 10, the first terminal 20, and the second terminal 30. The second terminal is the sending end, which is used to send screen projection information to the multi-function receiving device 10, and the multi-function receiving device 10 and the second terminal 30 are connected through short-range wireless communication, and the short-range wireless communication is Bluetooth or WIFI. The multifunctional receiving device 10 is used to decode the received projection information to obtain the projection information in the first format, and then transmit the projection information in the first format to the first terminal, so that the first terminal can perform projection display .

As shown in FIG. 5, in one embodiment, a conference system is proposed, including: a multi-function receiving device 10, a first terminal 20, a second terminal 30, and a sending device 40. The multi-function receiving device 10 and the first terminal 20 connection, the sending device 40 is connected to the second terminal 30 through the HDMI interface and the USB interface, and is used to receive the projection information transmitted by the second terminal, encode the projection information, and send the encoded data information to the multi-function receiver equipment.

Among them, in a conference screen projection scene, a sending device 40 is connected to the sending end, that is, the second terminal 30, and the sending device 40 is connected to the second terminal 30 through an HDMI interface and a USB interface, so that the second terminal needs to be installed Any software can transmit the projection information to the sending device 40, and the sending device 40 encodes the received projection information, and then sends it to the connected multi-function receiving device 10, the sending device 40 and the multi-function receiving device 10 It is connected via short-range communication, that is, connected via Bluetooth or WIFI, that is to say, wireless projection can be realized without a network.

In one embodiment, there are one or more multifunctional receiving devices 10, and each multifunctional receiving device is connected to a first terminal. When there are multiple multifunctional receiving devices, the information displayed on the screens of the multiple first terminals is the same. That is, the same information can be screened to multiple first terminals.

In addition, when the screen display information of the second terminal is displayed on the first terminal, the user can annotate and modify the information displayed on the screen of the second terminal on the first terminal, and the multifunctional receiving device receives the user's comments on the first terminal. , Modify the operation information, send it to the second terminal, perform the same operation on the second terminal’s screen display information, and realize the mutual projection of the first terminal and the second terminal through the screen of the first terminal. The interaction between the user and the second terminal is improved.

As shown in FIG. 6, in one embodiment, a conference system is proposed, including: a multifunctional receiving device 10, a first terminal 20, a local second terminal 31, a remote second terminal 32, and a server 50. The function receiving device 10 is connected to the first terminal 20, the remote second terminal 32 is connected to the server 50 through a network, the server 50 is connected to the multifunctional receiving device 10 through a network, and the local second terminal The terminal 31 and the multi-function receiving device 10 are connected by short-distance communication.

Among them, in a scenario that requires both local screen projection and remote video conferencing, the conference system not only includes the multifunctional receiving device 10, the first terminal 20, and the local second terminal 31, but also includes the remote second terminal 32, Server 50. The transmission of the remote video requires the participation of the server 50. The server 50 is configured to receive the video information sent by the second terminal, and then send the received video information to the multifunctional receiving device 10. There are one or more local second terminals 31, and there are one or more remote second terminals 32.

Referring to FIG. 6, in one embodiment, there may be two second terminals 30, which are a local second terminal 31 and a remote second terminal 32 respectively. The local second terminal 31 may send the screen information to the multi-function receiving device 10 by way of screen projection, so as to facilitate display on the first terminal 20. The remote second terminal 32 sends the video information to the multi-function receiving device 10 through the server 50 so as to display the remote video information on the first terminal 20. The second terminal can be a mobile phone, a computer, a television, and so on.

Fig. 7 is a schematic diagram of a multifunctional receiving device provided in the seventh embodiment of the present invention. As shown in FIG. 7, the multifunctional receiving device 10 of this embodiment includes: a processor 70, a memory 71, and a computer program 72 stored in the memory 71 and running on the processor 70. The computer program 72 can be divided into one or more modules/units, for example, each module in FIG. 1, and the one or more modules/units are stored in the memory 71 and executed by the processor 70 to Complete the present invention. The one or more modules/units may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program 72 in the receiving device 7.

Exemplarily, the multifunctional receiving device 10 may include, but is not limited to, a processor 70 and a memory 71. Those skilled in the art can understand that FIG. 7 is only an example of the multi-function receiving device 10, and does not constitute a limitation on the multi-function receiving device 10. It may include more or less components than those shown in the figure, or combine certain components. Or different components, for example, the multifunctional receiving device 10 may also include an input/output device, a network access device, a bus, and the like.

The so-called processor 70 may be a central processing unit (Central Processing Unit, CPU), it can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

The memory 71 may be an internal storage unit of the multi-function receiving device 10, such as a hard disk or a memory of the multi-function receiving device 10. The memory 71 may also be an external storage device of the multi-function receiving device 10, such as a plug-in hard disk equipped on the multi-function receiving device 10, a smart memory card (Smart Media Card, SMC), and a secure digital (Secure Digital). Digital, SD) card, flash card (Flash Card), etc. Further, the memory 71 may also include both an internal storage unit of the multi-function receiving device 10 and an external storage device. The memory 71 is used to store the computer program and other programs and data required by the multifunctional receiving device 10. The memory 71 can also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above functional units and modules is used as an example. In practical applications, the above functions can be allocated to different functional units and modules as needed. Module completion, that is, the internal structure of the receiving device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist alone physically, or two or more units can be integrated into one unit. The above-mentioned integrated units can be hardware-based Formal realization can also be realized in the form of a software functional unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working process of the units and modules in the foregoing system, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail or recorded in an embodiment, reference may be made to related descriptions of other embodiments.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

In the embodiments provided by the present invention, it should be understood that the disclosed method and system can be implemented in other ways. For example, the above-described method and system embodiments are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or Components can be combined or integrated into another system, or some features can be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated module/unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiments and methods, and can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, it can implement the steps of the foregoing method embodiments. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate forms. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (Read-Only Memory, ROM) , Random access memory (Random Access Memory, RAM), electrical carrier signals, telecommunications signals, and software distribution media. It should be noted that the content contained in the computer-readable medium can be appropriately added or deleted according to the requirements of the legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to the legislation and patent practice, the computer-readable medium Does not include electrical carrier signals and telecommunication signals.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered as the range described in this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and their description is relatively specific and detailed, but they should not be understood as a limitation to the patent scope of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can be made, and these all fall within the protection scope of this application. Therefore, the scope of protection of the patent of this application shall be subject to the appended claims.

Claims

A multifunctional receiving device, which is characterized by comprising: a receiving module, a pattern recognition module, a projection decoding module, a video decoding module, a transmission module, and a control module. The multifunctional receiving device communicates with a first Terminal connection

The receiving module, the pattern recognition module, the projection decoding module, the video decoding module, and the transmission module are respectively connected to the control module;

The receiving module is configured to receive data information sent by the second terminal, and the data information includes: a data transmission mode;

The pattern recognition module is connected to the receiving module, and is used to identify the data transmission mode in the data information to obtain a pattern recognition result;

The projection decoding module is connected to the pattern recognition module, and is configured to decode the projection information in the received data information when the pattern recognition result is a projection mode to obtain target projection information;

The video decoding module is connected to the pattern recognition module, and is configured to decode the video information in the received data information when the pattern recognition result is a video mode to obtain target video information;

The transmission module is connected to the projection decoding module, and is configured to use a first preset protocol to transmit the target projection information to the first terminal through the HDMI interface, so that the first terminal displays the State the target projection information;

The transmission module is connected to the video decoding module, and is configured to use a second preset protocol to transmit the target video information to the first terminal through the HDMI interface, so that the first terminal displays the target Video information.
The multi-function receiving device according to claim 1, wherein the receiving module comprises: a long-distance wireless receiving module and a short-distance wireless receiving module, the long-distance wireless receiving module is used to receive the second terminal sent by the server The data information containing the video information, the short-range wireless receiving module is used to receive the data information containing the projection information sent by the second terminal.
The multifunctional receiving device according to claim 2, wherein the long-range wireless receiving module is a mobile communication module, and the short-range wireless receiving module is a Bluetooth module or a WIFI module.
The multifunctional receiving device according to claim 1, wherein the multifunctional receiving device further comprises: a first format conversion module and a second format conversion module, the first format conversion module and the projection screen respectively The decoding module is connected to the control module, and the second format conversion module is connected to the video decoding module and the control module respectively;

The first format conversion module is configured to convert the format of the target screen information into the target screen format when the format of the target screen information obtained by decoding does not meet the preset format requirements;

The second format conversion module is configured to convert the format of the video projection information into the target video format when the format of the decoded target video information does not meet the preset format requirements.
The multi-function receiving device according to claim 1, wherein the multi-function receiving device further comprises: a switch module, the switch module is respectively connected with the transmission module and the control module, and is used to control the The transmission module starts or stops transmitting the projection information in the first format or the video information in the second format.
The multi-function receiving device according to claim 1, wherein the multi-function receiving device further comprises: a switching module, and the switching module is respectively connected with the receiving module and the control module for simultaneous receiving When the projection information and the video information are reached, the receiving module is controlled to choose to receive the projection information and/or video information.
The multifunctional receiving device according to claim 1, wherein the second preset protocol is an RTP protocol, and the first preset protocol is an Airplay protocol or a Chromecast protocol or a Miracast protocol or a DLNA protocol.
A conference system, comprising: the multifunctional receiving device, a first terminal, and a second terminal according to any one of claims 1 to 7, wherein the multifunctional receiving device is connected to the first terminal, and the multifunctional receiving device is connected to the first terminal. The device and the second terminal are connected through short-range wireless communication.
A conference system, comprising: the multifunctional receiving device, a first terminal, a second terminal, and a sending device according to any one of claims 1 to 7, wherein the multifunctional receiving device is connected to the first terminal, and the The sending device is connected to the second terminal through the HDMI interface and the USB interface, and is used to receive the projection information transmitted by the second terminal, encode the projection information, and send the encoded data information to the multifunctional receiving device .
A conference system, comprising: the multifunctional receiving device according to any one of claims 1 to 7, a first terminal, a local second terminal, a remote second terminal and a server, the multifunctional receiving device and the first Terminal connection, the remote second terminal is connected to the server through a network, the server is connected to the multifunctional receiving device through the network, and the local second terminal is connected to the multifunctional receiving device through short-range wireless communication .