CN117579771A - Multimedia conference system - Google Patents
Multimedia conference system Download PDFInfo
- Publication number
- CN117579771A CN117579771A CN202311463130.4A CN202311463130A CN117579771A CN 117579771 A CN117579771 A CN 117579771A CN 202311463130 A CN202311463130 A CN 202311463130A CN 117579771 A CN117579771 A CN 117579771A
- Authority
- CN
- China
- Prior art keywords
- central control
- control host
- video
- audio
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011159 matrix material Substances 0.000 claims abstract description 19
- 230000005236 sound signal Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000011022 operating instruction Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 4
- 238000007726 management method Methods 0.000 description 12
- 230000003993 interaction Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000006854 communication Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/67—Circuits for processing colour signals for matrixing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a multimedia conference system, which comprises a central control host provided with a storage module; the control terminal is used for sending an operation instruction to the central control host; the video conference terminal is connected with the central control host and used for analyzing video signals and audio signals; the downstream equipment is connected with the central control host and receives control from the central control host; the downstream device comprises a video matrix module and an audio module: the video matrix module is connected with the display equipment and the central control host; the video matrix module is used for outputting video signals from the central control host to the display equipment and is also used for switching the display equipment connected with the video signals; the audio module is connected with the audio equipment and the central control host; the audio module is used for inputting audio signals from the audio device to the central control host and outputting audio signals from the central control host to the audio device. The system has high integration level, can control downstream equipment more conveniently through the control terminal, and improves the efficiency of switching control of audio and video signals.
Description
Technical Field
The invention relates to the technical field of multimedia, in particular to a multimedia conference system.
Background
The original decentralized control mode is adopted by each component unit of the multimedia conference system in the market at present, each device has the adjustment and configuration modes, the use is easy, and each sound generating device and sound source management are very inconvenient. Meanwhile, the conference material sharing mode based on double flow ensures that conference participants need to manually open and close the selected sound sources according to different scene roles in the conference, misoperation is easy to non-professional staff, and cable damage is easy to be caused by frequent plug-and-play switching.
Disclosure of Invention
The invention aims to provide a multimedia conference system.
The technical scheme adopted for solving the technical problems is as follows: constructing a multimedia conference system, which comprises a central control host provided with a storage module; the control terminal is used for sending an operation instruction to the central control host; the video conference terminal is connected with the central control host and used for analyzing video signals and audio signals; the downstream equipment is connected with the central control host and receives control from the central control host;
wherein, the downstream device includes a video matrix module and an audio module: the video matrix module is connected with the display equipment and the central control host; the video matrix module is used for outputting video signals from the central control host to the display equipment and is also used for switching the display equipment connected with the video signals;
the audio module is connected with the audio equipment and the central control host; the audio module is used for inputting the audio signal from the audio device to the central control host and outputting the audio signal from the central control host to the audio device.
Preferably, in the multimedia conference system constructed by the present invention, the storage module is used for storing configuration data in the multimedia conference system;
the configuration data includes: at least one of user data, video point data, network configuration data, interface configuration data.
Preferably, in the multimedia conference system constructed according to the present invention, the user data includes a user data information table;
the user data information table is used for storing at least one of user ID, user name, user login password, user type and user belonging group;
the video point data comprises a video point information table, wherein the video point information table is used for storing at least one of video point ID, IP address, position description, responsible person and affiliated area;
the network configuration data comprises a network configuration information table, wherein the network configuration information table is used for storing at least one of network ID, local IP address and gateway address;
the interface configuration data includes an interface device information table for storing at least one of interface ID, interface type, connection device ID, connection device interface type, and connection device description.
Preferably, in the multimedia conference system constructed according to the present invention, the downstream device further includes a strong electric control module and a dimming module;
the strong electric control module is used for controlling the power supply of other equipment on the multimedia conference site;
the dimming module is connected with the dimming light equipment on the multimedia conference site and used for regulating and controlling the brightness of the dimming light equipment.
Preferably, in the multimedia conference system constructed by the invention, the system further comprises cloud central control equipment;
the cloud central control equipment and the central control host are located in the same network segment and used for managing the central control host in the multimedia conference site.
Preferably, in the multimedia conference system constructed by the present invention, a proprietary instruction set of the downstream device is also stored in the storage module, and a proprietary instruction in the proprietary instruction set corresponds to the operation instruction.
Preferably, in the multimedia conference system constructed according to the present invention, the control terminal is a mobile terminal.
Preferably, in the multimedia conference system constructed according to the present invention, the downstream device further includes: a signal input/output device;
the signal input/output device is connected with the central control host, and is used for outputting information in the central control host to the outside and inputting external information into the central control host.
Preferably, in the multimedia conference system constructed according to the present invention, the operation instruction includes: at least one of a power-on instruction, a power-off instruction, a shared material instruction, a device switching instruction, and an independent power-off instruction.
Preferably, in the multimedia conference system constructed according to the present invention, the video conference terminal connects a main signal including a video conference signal with an auxiliary signal including a shared material signal.
By implementing the invention, the following beneficial effects are achieved:
the invention constructs a multimedia conference system, which comprises a central control host provided with a storage module; the control terminal is used for sending an operation instruction to the central control host; the video conference terminal is connected with the central control host and used for analyzing video signals and audio signals; the downstream equipment is connected with the central control host and receives control from the central control host; the downstream device comprises a video matrix module and an audio module: the video matrix module is connected with the display equipment and the central control host; the video matrix module is used for outputting video signals from the central control host to the display equipment and is also used for switching the display equipment connected with the video signals; the audio module is connected with the audio equipment and the central control host; the audio module is used for inputting audio signals from the audio device to the central control host and outputting audio signals from the central control host to the audio device. The system has high integration level, can control downstream equipment more conveniently through the control terminal, and improves the efficiency of switching control of audio and video signals.
And moreover, the operation instruction sent to the central control host by the control terminal corresponds to equipment to be controlled, so that the professional knowledge threshold required by the control equipment is reduced, and the video conference can be smoothly unfolded without the need of being equipped with related technicians on the video conference site.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a first structural schematic diagram of the multimedia conference system of the present invention;
fig. 2 is a second structural diagram of the multimedia conference system of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
It should be noted that the flow diagrams depicted in the figures are merely exemplary and do not necessarily include all of the elements and operations/steps, nor are they necessarily performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
Referring to fig. 1, a first embodiment of the present invention discloses a multimedia conference system, which includes a central control host provided with a storage module; the control terminal is used for sending an operation instruction to the central control host; the video conference terminal is connected with the central control host and used for analyzing video signals and audio signals; the downstream equipment is connected with the central control host and receives control from the central control host;
the downstream device comprises a video matrix module and an audio module: the video matrix module is connected with the display equipment and the central control host; the video matrix module is used for outputting video signals from the central control host to the display equipment and is also used for switching the display equipment connected with the video signals;
the audio module is connected with the audio equipment and the central control host; the audio module is used for inputting audio signals from the audio device to the central control host and outputting audio signals from the central control host to the audio device.
Further, in order to enable a non-professional technician to smoothly switch equipment or video signals, each operation instruction corresponds to a specific key on the control terminal one by one, the buttons can be physical buttons or virtual buttons, and the buttons can be pre-classified according to functional categories, for example, the operation instruction for controlling video, the operation instruction for controlling audio and the operation instruction for power supply are respectively arranged in different groups, so that the operator can search and apply the operation instructions.
Further, in order to facilitate sending an operation instruction to the central control host, in the multimedia conference system disclosed in this embodiment, the control terminal may be portable, and may be moved as needed according to the use requirement, without fixed installation. The control terminal of the multimedia conference system may be a mobile control terminal, for example, a mobile phone or a tablet computer, where an android system may be installed on the mobile phone or the tablet computer, and the mobile terminal may also be another handheld terminal, for example, a notebook computer with an independent power supply. The movable control terminal has the functions of man-machine interaction and wireless communication, and can complete the basic environment configuration of the centralized control platform on the man-machine interaction interface, so that a user can send an instruction and transmit a control signal to the control host.
The movable control terminal is provided with a man-machine interaction operation interface, the key labels are simple and easy to understand, and each operation control is provided with an independent key to cover all common functions. The user can finish the operations of one-key startup/shutdown, material sharing, double-current receiving/transmitting, computer switching to the projector and the like through the flat panel controller, and can also enter a power control interface to carry out independent power on/off control on the television, the projector and the video host. Is convenient to operate and simple and easy to understand.
In some embodiments, the control terminal may also be wall-mounted. In other embodiments, the control terminal is not movable, and the control terminal is implemented in a console or a desktop console and the like, so that the requirements of various meeting places are met. When the control terminal is movable, the control terminal can perform bidirectional communication with the central control host through wireless communication so as to realize portable and integrated equipment control. And the signal transmission between the control terminal and the central control host can be bidirectional, the control terminal sends the operation instruction to the central control host, and the central control host feeds back signals such as whether the operation instruction is successfully issued to downstream equipment or not to the control terminal.
The system supports android (mobile phones or flat plates and the like), wall surface installation, operation desk control, desktop control desk modes and the like, and can meet the types of management and control of various meeting rooms; the management personnel are supported to conduct management and control in a wired or wireless mode, and the positions of the management personnel are not limited.
Further, in order to save the configuration data of the control platform and facilitate management of the configuration data in the system database, in the multimedia conference system disclosed in this embodiment, the storage module is configured to store the configuration data in the multimedia conference system; the configuration data includes: at least one of user data, video point data, network configuration data, interface configuration data.
Further, in the multimedia conference system disclosed in the present embodiment, the user data includes a user data information table; the user data information table is used for storing at least one type of information in a user ID, a user name, a user login password, a user type and a group to which the user belongs;
the video point data comprises a video point information table, wherein the video point information table is used for storing at least one of video point ID, IP address, position description, responsible person and affiliated area;
the network configuration data comprises a network configuration information table, wherein the network configuration information table is used for storing at least one of network ID, local IP address and gateway address;
the interface configuration data includes an interface device information table for storing at least one of information of an interface ID, an interface type, a connection device ID, a connection device interface type, and a connection device description.
According to the data management requirement, a system database in the multimedia conference system mainly designs a user data information table, a video point information table, a network configuration information table, an interface equipment information table and other data tables, the data tables are high in cohesion and low in coupling, the mutual logic relationship is simplified, and different data tables are used for corresponding control functions, so that each item of data of a centralized control platform is accurate and is not lost.
Further, in order to provide more interactive contents, in the multimedia conference system disclosed in the embodiment, the downstream device further includes a strong electric control module and a dimming module; the strong electric control module is used for controlling the power supply of other equipment on the multimedia conference site; and the dimming module is connected with the dimming light equipment on the multimedia conference site and used for regulating and controlling the brightness of the dimming light equipment. Through the network connection light modulator, the light needs to connect the power cord to the light modulator and carry out luminance adjustment, and here light needs to support luminance adjustment just can satisfy the use.
The electric control module and the dimming module provide more interaction content for the multimedia conference system, centralize power supply and light control interaction, and can also add other mechanical interactions such as home control and the like, and combine audio-video interaction and double-flow signal interaction to provide a simple and direct control interface for a user, so that the user can conveniently grasp the states and functions of all devices in the whole conference space environment. The intelligent control of meeting room can be realized through control terminal and well accuse host computer, can bring everything interconnection's experience for the user, improves the intelligent construction of meeting room, reduces the unnecessary other operations of meeting personnel to improve office efficiency, have more intelligent centralized control management platform.
Further, in order to facilitate unified management of the central control host, the multimedia conference system disclosed in the embodiment further includes cloud central control equipment; the cloud central control equipment and the central control host are located in the same network segment and used for managing the central control host in the multimedia conference site. The cloud central control host mainly aims at carrying out unified management on the central control host, and the cloud central control host only needs to keep the same network segment with the central control host.
In some embodiments, the central control host self-networking to form a local area network and uniformly control other controllable devices in the network, such as various downstream devices capable of wireless communication. In some embodiments, the host may control the expansion box TR-0740S in the conference site through a network connection, and the expansion box and the body sensor and the humidity sensor may be controlled through a network or control line RVVP2 x 0.5i connection. The strong electric controller can also be connected wirelessly through a network.
In addition, the central control host controls the video matrix module, the video conference terminal, the audio module, the recording and playing equipment and the like through network cables or serial port lines (RS 232/485/422 protocol); the power line can be connected to the strong electric controller through the 232 protocol, and the power controller of the equipment such as the electric curtain and the like can receive the corresponding central control instruction sent by the central control host computer to control the equipment switch. The central control command is a signal which is directly sent or analyzed to downstream equipment after the central control host receives the operation command sent from the control terminal. The lamplight switch can also be connected with a strong electric controller to realize the control of the lamplight switch.
In some embodiments, a wireless router may be configured in the multimedia conferencing system, making the venue more convenient and intelligent.
Further, in the multimedia conference system disclosed in this embodiment, a proprietary instruction set of the downstream device is also stored in the storage module, where a proprietary instruction in the proprietary instruction set corresponds to the operation instruction.
And the controlled terminals such as downstream equipment and the like which are interconnected with the central control host computer are controlled by using the special instruction sets, so that the special instruction sets of the controlled terminals are required to be collected, written and cured in the application program of the control platform, and the operation instructions sent by the control terminals are matched in program logic to realize the control of the controlled terminals.
Further, in order to facilitate sending an operation instruction to the central control host, in the multimedia conference system disclosed in this embodiment, the control terminal is a mobile terminal.
Further, in order to enhance the integration capability of the multimedia conference system, in the multimedia conference system disclosed in this embodiment, the downstream device further includes: a signal input/output device; the signal input/output device is connected with the central control host computer and is used for outputting information in the central control host computer to the outside and inputting external information into the central control host computer. The user can increase equipment such as microphone equipment, audio equipment, camera equipment, control equipment, display equipment, storage equipment and intelligent house according to the demand.
Further, in the multimedia conference system disclosed in the present embodiment, the operation instruction includes: at least one of a power-on instruction, a power-off instruction, a shared material instruction, a device switching instruction, and an independent power-off instruction. After the operation instruction is sent to the central control host, the central control host can feed back whether the instruction is successfully issued to the corresponding downstream equipment to the control terminal with the interaction module.
Further, referring to fig. 2, in order to implement dual-stream input and output of a conference, in the multimedia conference system disclosed in this embodiment, a video conference terminal connects a main signal and an auxiliary signal, the main signal includes a video conference signal, and the auxiliary signal includes a shared material signal. The video conference signal may include at least one of video content of the two party conference sites, audio content of the two party conference sites. The shared material signal may include content such as real-time video sharing of screen sharing. In a multimedia conference system of a party initiating sharing, the auxiliary signal is taken as an output signal, whereas in a multimedia conference system of a party receiving the shared material, the auxiliary signal is taken as an input signal.
By implementing the invention, the following beneficial effects are achieved:
the invention discloses a multimedia conference system, which comprises a central control host provided with a storage module; the control terminal is used for sending an operation instruction to the central control host; the video conference terminal is connected with the central control host and used for analyzing video signals and audio signals; the downstream equipment is connected with the central control host and receives control from the central control host; the downstream device comprises a video matrix module and an audio module: the video matrix module is connected with the display equipment and the central control host; the video matrix module is used for outputting video signals from the central control host to the display equipment and is also used for switching the display equipment connected with the video signals; the audio module is connected with the audio equipment and the central control host; the audio module is used for inputting audio signals from the audio device to the central control host and outputting audio signals from the central control host to the audio device. The system has high integration level, can control downstream equipment more conveniently through the control terminal, and improves the efficiency of switching control of audio and video signals.
The multimedia conference system can support android (mobile phones, tablets and the like), wall surface installation, operation console control, desktop control console and the like, and can meet the management and control types of various conference rooms; the system can support management and control in a wired or wireless mode, and the position of a manager is not limited; the system can support a plurality of access modes such as 232 protocol, 485 protocol, network protocol, IR infrared, zigbee protocol, IO control, WIFI and the like. All equipment control interfaces of the multimedia conference system are connected with the central control host, so that unified management, unified scheduling and centralized regulation are realized.
It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above embodiments or technical features may be freely combined, and several variations and modifications may be made, without departing from the spirit of the invention, which fall within the scope of the invention, i.e. the embodiments described in "some embodiments" may be freely combined with any of the above and below embodiments; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A multimedia conference system, comprising
A central control host provided with a storage module;
the control terminal is used for sending an operation instruction to the central control host;
the video conference terminal is connected with the central control host and used for analyzing video signals and audio signals;
the downstream equipment is connected with the central control host and receives control from the central control host;
wherein, the downstream device includes a video matrix module and an audio module:
the video matrix module is connected with the display equipment and the central control host; the video matrix module is used for outputting video signals from the central control host to the display equipment and is also used for switching the display equipment connected with the video signals;
the audio module is connected with the audio equipment and the central control host; the audio module is used for inputting the audio signal from the audio device to the central control host and outputting the audio signal from the central control host to the audio device.
2. The multimedia conference system according to claim 1, wherein said storage module is configured to store configuration data in the multimedia conference system;
the configuration data includes: at least one of user data, video point data, network configuration data, interface configuration data.
3. The multimedia conference system of claim 2, wherein the user data comprises a user data information table;
the user data information table is used for storing at least one of user ID, user name, user login password, user type and user belonging group;
the video point data comprises a video point information table, wherein the video point information table is used for storing at least one of video point ID, IP address, position description, responsible person and affiliated area;
the network configuration data comprises a network configuration information table, wherein the network configuration information table is used for storing at least one of network ID, local IP address and gateway address;
the interface configuration data includes an interface device information table for storing at least one of interface ID, interface type, connection device ID, connection device interface type, and connection device description.
4. The multimedia conferencing system of claim 1, wherein the downstream device further comprises a strong electrical control module and a dimming module;
the strong electric control module is used for controlling the power supply of other equipment on the multimedia conference site;
the dimming module is connected with the dimming light equipment on the multimedia conference site and used for regulating and controlling the brightness of the dimming light equipment.
5. The multimedia conference system of claim 1, further comprising a cloud central control device;
the cloud central control equipment and the central control host are located in the same network segment and used for managing the central control host in the multimedia conference site.
6. The multimedia conference system of claim 1 wherein the memory module further has stored therein a proprietary instruction set of the downstream device, the proprietary instruction in the proprietary instruction set corresponding to the operational instruction.
7. The multimedia conference system according to claim 1, wherein said control terminal is a mobile terminal.
8. The multimedia conferencing system of claim 1, wherein the downstream device further comprises: a signal input/output device;
the signal input/output device is connected with the central control host, and is used for outputting information in the central control host to the outside and inputting external information into the central control host.
9. The multimedia conference system of claim 1, wherein the operating instructions comprise: at least one of a power-on instruction, a power-off instruction, a shared material instruction, a device switching instruction, and an independent power-off instruction.
10. The multimedia conference system of claim 1 wherein the video conference terminal is further connected to a primary signal comprising a video conference signal and a secondary signal comprising a shared material signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311463130.4A CN117579771A (en) | 2023-11-02 | 2023-11-02 | Multimedia conference system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311463130.4A CN117579771A (en) | 2023-11-02 | 2023-11-02 | Multimedia conference system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117579771A true CN117579771A (en) | 2024-02-20 |
Family
ID=89861553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311463130.4A Pending CN117579771A (en) | 2023-11-02 | 2023-11-02 | Multimedia conference system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117579771A (en) |
-
2023
- 2023-11-02 CN CN202311463130.4A patent/CN117579771A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1727364B1 (en) | A conference unit controlling room functions | |
| CN101854444B (en) | Visible dispatching system and dispatching method | |
| CN102651915A (en) | Intelligent wireless router and wireless communication system | |
| WO2016015500A1 (en) | Smart led lighting device and remote video chat system thereof | |
| CN205230394U (en) | Integrated central controller of multimedia teaching system | |
| CN201039361Y (en) | Intelligent electronic meeting room | |
| CN103064355B (en) | A kind of interaction control system for hotel guest room | |
| CN206892584U (en) | Intelligent meeting system based on Internet of Things | |
| CN202617361U (en) | Wireless intelligent router and wireless communication system | |
| CN104702885A (en) | Integrated application system of consultation, study and judge platform | |
| US20100312413A1 (en) | Advanced wireless projector presentation system with network management control | |
| CN117579771A (en) | Multimedia conference system | |
| CN103389657A (en) | Dual-backup programmable central control system | |
| CN106534352A (en) | Remote debugging simulator and control method thereof | |
| CN206115176U (en) | Control device in wireless APP control multi -media | |
| CN203422615U (en) | Dual-backup programmable central control system | |
| CN104202580A (en) | Visual talkback device | |
| CN209980227U (en) | Intelligent display system and device | |
| CN111918017A (en) | Offline voice control terminal based on video conference system | |
| CN105119895A (en) | Network audio transmission system based on media matrix | |
| US11445146B2 (en) | Video conference terminal and video conference system | |
| CN217113234U (en) | KVM multi-host switching system | |
| CN218679154U (en) | Live device of video and live all-in-one of video | |
| CN214474553U (en) | Programmable multimedia conference central control | |
| CN220252413U (en) | Multimedia central control equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |