CN108259813A - Multi-functional biography screen device, system and method - Google Patents
Multi-functional biography screen device, system and method Download PDFInfo
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- CN108259813A CN108259813A CN201810090792.4A CN201810090792A CN108259813A CN 108259813 A CN108259813 A CN 108259813A CN 201810090792 A CN201810090792 A CN 201810090792A CN 108259813 A CN108259813 A CN 108259813A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 15
- 238000003491 array Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
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Classifications
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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
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
This application discloses a kind of multi-functional biography screen device, system and methods, belong to Internet technical field.The multi-functional biography screen device includes：First physical interface, for connecting first terminal；Second physical interface, for connecting second terminal；Screen mode switch module is passed, when being connected to the first terminal for working as first physical interface, and detecting that second physical interface is not connected to the second terminal, the multi-functional biography screen device is switched into the first biography screen pattern；When first physical interface is connected to the first terminal, and detects that second physical interface is connected to the second terminal, the multi-functional biography screen device is switched into the second biography screen pattern.Multi-functional biography screen device, the system and method for disclosure offer can realize that the first biography screen pattern and second passes the switching of screen pattern, so as to meet the data transmission security demand of different application scene.
Description
Technical field
The present invention relates to Internet technical fields, and in particular, to a kind of multi-functional biography screen device, system and method.
Background technology
Enterprise or individual are when using video conferencing system remotely to be linked up, it usually needs share in a meeting in computer
The content shown on screen such as image and/or audio and video, to carry out demonstration operation.Biography screen refers to will be on some terminal screen
Content (such as image and/or audio and video) is transmitted to another terminal by certain communication mode, so as on the terminal screen
It has been shown that, for example, mobile phone screen picture is transmitted to desktop computer, and is shown on its display, vice versa.How to allow and attend a meeting
User can easily share the screen-picture of the terminal of oneself such as computer or mobile phone in video conference, become user's concern
The problem of.
Therefore, it is necessary to a kind of new multi-functional biography screen device, system and methods.
Above- mentioned information is only used for strengthening the understanding of the background to the present invention, therefore it disclosed in the background technology part
It can include not forming the information to the prior art known to persons of ordinary skill in the art.
Invention content
In view of this, the present invention provides a kind of multi-functional biography screen device, system and method, can realize two kinds of biography screen patterns
Switching.
Other characteristics and advantages of the present invention will be by the following detailed description apparent from or partially by the present invention
Practice and acquistion.
According to an aspect of the invention, it is proposed that a kind of multi-functional biography screen device, including：First physical interface, for connecting
First terminal；Second physical interface, for connecting second terminal；Screen mode switch module is passed, is connect for working as first physics
It, will be described more when mouthful being connected to the first terminal, and detecting that second physical interface is not connected to the second terminal
Function passes screen device and switches to the first biography screen pattern；When first physical interface is connected to the first terminal, and detect
When second physical interface is connected to the second terminal, the multi-functional biography screen device is switched into the second biography screen pattern.
In a kind of exemplary embodiment of the disclosure, first physical interface is USB interface.
In a kind of exemplary embodiment of the disclosure, second physical interface is USB Type-C interfaces.
In a kind of exemplary embodiment of the disclosure, described first passes screen pattern as wireless screen transmission pattern, and described second
It is wired biography screen pattern to pass screen pattern.
According to an aspect of the invention, it is proposed that a kind of multi-functional biography screen system, including：First terminal, the first terminal
Including first terminal interface；Second terminal；And the multi-functional biography screen device as described in above-described embodiment.
In a kind of exemplary embodiment of the disclosure, the second terminal include second terminal interface, for it is described
Multi-functional the second physical interface connection for passing screen device.
In a kind of exemplary embodiment of the disclosure, lead between the second terminal interface and second physical interface
Cross USB cable connection.
According to an aspect of the invention, it is proposed that a kind of multi-functional screen transmission method, including：Judge multi-functional to pass the of screen device
Whether one physical interface connect with first terminal；When first physical interface is connected to the first terminal, described in judgement
Whether multi-functional the second physical interface for passing screen device connect with second terminal；Described in being not connected to when second physical interface
During second terminal, the multi-functional biography screen device is switched into the first biography screen pattern；When second physical interface is connected to institute
When stating second terminal, the multi-functional biography screen device is switched into the second biography screen pattern.
In a kind of exemplary embodiment of the disclosure, first physical interface is USB interface, and second physics connects
Mouth is USB Type-C interfaces.
In a kind of exemplary embodiment of the disclosure, described first passes screen pattern as wireless screen transmission pattern, and described second
It is wired biography screen pattern to pass screen pattern.
According to multi-functional biography screen device, the system and method provided in certain embodiments of the invention, by being used for connection
First physical interface of one terminal and the second physical interface for connecting second terminal can realize the first biography screen pattern and
Two pass the switching of screen pattern, so as to meet the data transmission security demand of different application scene.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other target of the invention, feature and advantage will
It becomes more fully apparent.Drawings discussed below is only some embodiments of the present invention, for the ordinary skill of this field
For personnel, without creative efforts, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is according to a kind of multi-functional schematic diagram for passing screen device shown in an exemplary embodiment.
Fig. 2 is according to a kind of multi-functional stereogram for passing screen device shown in an exemplary embodiment.
Fig. 3 is the vertical view of multi-functional biography screen device shown according to fig. 2.
Fig. 4 is the bottom view of multi-functional biography screen device shown according to fig. 2.
Fig. 5 is according to a kind of multi-functional schematic diagram for passing screen system shown in an exemplary embodiment.
Fig. 6 is the schematic diagram according to a kind of multi-functional screen transmission method shown in an exemplary embodiment.
Fig. 7 is the schematic diagram according to a kind of multi-functional wireless screen transmission pattern for passing screen device shown in an exemplary embodiment.
Fig. 8 is the signal according to the multi-functional wireless screen transmission pattern for passing screen device of the another kind shown in an exemplary embodiment
Figure.
Fig. 9 is the signal according to the multi-functional wireless screen transmission pattern for passing screen device of another shown in an exemplary embodiment
Figure.
Figure 10 is the schematic diagram according to a kind of multi-functional wired biography screen pattern for passing screen device shown in an exemplary embodiment.
Figure 11 is the signal according to the multi-functional wired biography screen pattern for passing screen device of the another kind shown in an exemplary embodiment
Figure.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be real in a variety of forms
It applies, and is not understood as limited to embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention will be comprehensively and complete
It is whole, and the design of example embodiment is comprehensively communicated to those skilled in the art.Identical reference numeral represents in figure
Same or similar part, thus repetition thereof will be omitted.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In example.In the following description, many details are provided to fully understand the embodiment of the present invention so as to provide.However,
It will be appreciated by persons skilled in the art that technical scheme of the present invention can be put into practice without one or more in specific detail,
Or other methods, constituent element, device, step etc. may be used.In other cases, side known in being not shown in detail or describe
Method, device, realization or operation are to avoid fuzzy each aspect of the present invention.
Attached block diagram shown in figure is only functional entity, not necessarily must be corresponding with physically separate entity.
I.e., it is possible to it realizes these functional entitys using software form or is realized in one or more hardware modules or integrated circuit
These functional entitys realize these functional entitys in heterogeneous networks and/or processor device and/or microcontroller device.
Attached flow chart shown in figure is merely illustrative, it is not necessary to including all contents and operation/step,
It is not required to perform by described sequence.For example, some operation/steps can also decompose, and some operation/steps can close
And or partly merge, therefore the sequence actually performed is possible to be changed according to actual conditions.
It should be understood that although herein various assemblies may be described using term first, second, third, etc., these groups
Part should not be limited by these terms.These terms are to distinguish a component and another component.Therefore, first group be discussed herein below
Part can be described as teaching of second component without departing from disclosure concept.As used herein, term " and/or " including associated
All combinations for listing any one and one or more in project.
It will be understood by those skilled in the art that attached drawing is the schematic diagram of example embodiment, module or flow in attached drawing
Necessary to not necessarily implementing the present invention, therefore it cannot be used for limiting the scope of the invention.
Disclosure example embodiment is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is according to a kind of multi-functional schematic diagram for passing screen device shown in an exemplary embodiment.
As shown in Figure 1, multi-functional biography screen device 100 provided in this embodiment can include the first physical interface 110, second
Physical interface 120 and biography screen mode switch module 130.
First physical interface 110 can be used for connecting first terminal.
Second physical interface 120 can be used for connecting second terminal.
Screen mode switch module 130 is passed to can be used for being connected to the first terminal, and examine when first physical interface
When measuring second physical interface and being not connected to the second terminal, the multi-functional biography screen device is switched into the first biography screen
Pattern；When first physical interface is connected to the first terminal, and it is described to detect that second physical interface is connected to
During second terminal, the multi-functional biography screen device is switched into the second biography screen pattern.
In the exemplary embodiment, the first physical interface 110 can be USB interface.But it's not limited to that for the disclosure,
He can realize that the arbitrary interface of the object of the invention can be with.
In the exemplary embodiment, the second physical interface 120 can be USB Type-C interfaces.But the disclosure does not limit
In this, other can realize that the arbitrary interface of the object of the invention can be with.
USB Type-C connections can realize faster transmission speed (highest 10Gbps) and stronger power transmission (most
High 100W).The characteristics of Type-C two-sided inserting interfaces are maximum is to support the two-sided insertion of USB interface, the difficulty for solving USB inaccurate plugs
Topic, positive and negative are at will inserted.It is also thinner and lighter with its matching used USB cable simultaneously.USB Type-C types port can
Transmission data, charge can also be used as video-out port link external display device.
In the exemplary embodiment, the first biography screen pattern can be wireless screen transmission pattern, and described second passes screen pattern
It can be wired biography screen pattern.
Disclosure embodiment provide multi-functional biography screen device, by pass screen device hardware on, in addition to USB interface
Outside, an interface has also been reserved, the connecting line of a USB Type-C can be connected, so as to realize the biography screen device and
Wired connection between two terminals.This is because there are such application scenarios, there are demand for security in some enterprises, do not allow
Second terminal opens wireless Wi-Fi, can only use wired connection, and carrying out computer by cable passes screen.By reserve this second
Physical interface, can meet the user for having specific safety level demand, which can be inserted into the by user
On one terminal such as computer USB interface, then by the multi-functional USB cable passed on screen device, it is directly connected to second terminal
On, wired biography screen is carried out, thereby may be ensured that the safety and stability of data transmission, while can realize the reality of more high speed
Shi Chuanping.
In the embodiment of the present invention, based on wireless LAN communication standard agreement (such as 802.11n, 802.11ac, 5GHz frequencies
Section, in another example 802.11AD, 60GHz frequency range) achievable biography screen between the first terminal and the second terminal.
In the embodiment of the present invention, the first terminal and the second terminal support wireless LAN communication standard to assist
View, and wireless connection is established based on wireless LAN communication standard agreement and carries out biography screen.
In the embodiment of the present invention, the second terminal can be user terminal, which can be mobile phone or tablet
Computer either laptop either the first terminal such as desktop computer can be receive terminal for example smart television or
Laptop or desktop computer etc., in this way, it can be achieved that between mobile phone and smart television, tablet computer and smart television it
Between, efficient pass between laptop and laptop, between laptop and desktop computer etc. shield.
Fig. 2 is according to a kind of multi-functional stereogram for passing screen device shown in an exemplary embodiment.Fig. 3 is according to fig. 2
The vertical view of shown multi-functional biography screen device.Fig. 4 is the bottom view of multi-functional biography screen device shown according to fig. 2.
Fig. 5 is according to a kind of multi-functional schematic diagram for passing screen system shown in an exemplary embodiment.
As shown in figure 5, the multi-functional biography screen system 200 provided in the present embodiment can include first terminal 210, multi-functional
Pass screen device 220 and second terminal 230, wherein the first terminal 210 and the second terminal 230 pass through it is described multi-functional
Wireless screen transmission or wired biography screen can be realized by passing screen device 220.
Specifically, the multi-functional biography screen device 220 is referred to above-mentioned multi-functional biography screen device 100 shown in FIG. 1,
This is repeated no more.
Fig. 6 is the schematic diagram according to a kind of multi-functional screen transmission method shown in an exemplary embodiment.
As shown in fig. 6, the multi-functional screen transmission method provided in the present embodiment may comprise steps of.
In step s 110, judge whether multi-functional the first physical interface for passing screen device connect with first terminal；Work as institute
Multi-functional first physical interface for passing screen device is stated when being connect with the first terminal, enters step S120；Conversely, it returns to
Continue to judge in step S110.
In the step s 120, judge whether multi-functional second physical interface for passing screen device connect with second terminal；
When multi-functional second physical interface for passing screen device is connect with second terminal, S140 is entered step；Conversely, it enters step
S130。
In step s 130, the multi-functional biography screen device is switched into the first biography screen pattern.
In step S140, the multi-functional biography screen device is switched into the second biography screen pattern.
Fig. 7 is the schematic diagram according to a kind of multi-functional wireless screen transmission pattern for passing screen device shown in an exemplary embodiment.
As shown in Figure 7, it is assumed here that first terminal is laptop, and the multi-functional screen device that passes is inserted by USB interface
In the USB interface of the laptop, the biography screen software stored in the multi-functional biography screen device is run in the laptop, is grabbed
The screen on the laptop is taken to grab screen code stream, and the screen grabbed is grabbed into screen code stream Wireless transceiver to second terminal here
It is assumed to be reception terminal, so as to be shown on the display screen for receiving terminal.
Fig. 8 is the signal according to the multi-functional wireless screen transmission pattern for passing screen device of the another kind shown in an exemplary embodiment
Figure.Fig. 9 is the schematic diagram according to the multi-functional wireless screen transmission pattern for passing screen device of another shown in an exemplary embodiment.
In the present embodiment, receive terminal (i.e. second terminal) and broadcast WiFi (WIreless-Fidelity, the nothing of its own
Line fidelity) configuration information, wherein the WiFi configuration informations receive terminal and first terminal (here with slotting in diagram for establishing
Connect pass screen device laptop for) between wireless connection.
It in a specific embodiment, can if the screen content on laptop is passed screen to terminal is received
With elder generation, the communication module of wireless LAN communication standard agreement is supported in prepackage on laptop and reception terminal, supports nothing
The communication module of line local area network communication standard agreement can be specifically the WiFi chip for supporting wireless LAN communication standard agreement,
For example, the WiFi chip of the support wireless LAN communication standard agreement of high pass, so that laptop and reception terminal
Support wireless LAN communication standard agreement；The reception terminal broadcast WiFi configuration informations of its own, laptop receive
To after the WiFi configuration informations for receiving terminal broadcast, the laptop is established according to the WiFi configuration informations and described is connect
The wireless connection between terminal is received, laptop is accessed to the network for receiving terminal and sharing, and by laptop with receiving
Peer to peer are established between terminal, and (i.e. peer computer or peer-to-peer network, core are that data are stored in user local, are passed through
Store information, such as title, the inquiry of address, piecemeal allow immediate data between terminal to transmit) negotiate so that laptop
Frequency band with receiving the applicable wireless LAN communication standard agreement of transmission mode between terminal, that is, establish connection, with
Screen content on laptop is passed screen to reception terminal by the frequency band just based on wireless LAN communication standard agreement
On, it is shown in terminal in this manner it is possible to which easily the screen content on laptop is passed to receive.
In the exemplary embodiment, the WiFi configuration informations of the broadcast can include：It is wide by ultrasonic wave or bluetooth
Broadcast the WiFi configuration informations for receiving terminal.
In some embodiments, the WiFi configuration informations for receiving terminal can be broadcasted by ultrasonic wave.
Wherein, ultrasonic waveform is into may comprise steps of：From Background control and the required information transmitted can be changed,
The information that real time modifying is transmitted is to, transmitted information is thus completed and is determined；The information of required transmission is turned
Byte arrays are melted into .net and java programming languages familiar to the person skilled in the art specifically may be used and carry out programming,
It is possible thereby to ensure that the information of any form including Chinese can be transferred through sonic transmissions；Pass through ultrasonic wave generating algorithm pair
Byte arrays after conversion carry out coding and form sound wave byte arrays；Sound wave byte arrays are broadcasted in a voice form.
Wherein, after laptop receives the ultrasonic wave that the reception terminal is sent, it can be parsed.Tool
Body, ultrasonic wave parsing may comprise steps of：By constantly recording to obtain the sound for including sound wave byte arrays, this
The sound that sample is got not only includes the sound of transmission specify information, further includes the various noises in environment；To the sound in sound
Wave byte arrays are decoded processing by ultrasonic wave analytical algorithm, and receiving terminal just veritably receives the data of transmission, obtain pair
The transmission information answered.
In further embodiments, the WiFi configuration informations of reception terminal described in Bluetooth broadcast can be passed through.
Wherein, the reception terminal includes bluetooth transmitters, and the laptop includes Bluetooth Receiver.The bluetooth
Transmitter detects the Bluetooth Receiver in the bluetooth range of the bluetooth transmitters.Then, bluetooth transmitters are when first emits
The Bluetooth Receiver of detection is broadcast the data packet in sequence window.Accordingly, it is blue when data packet is properly received by Bluetooth Receiver
Tooth receiver will confirm that packet is sent back to bluetooth transmitters respectively.
It should be noted here that when Bluetooth Receiver fails received data packet, Bluetooth Receiver not will confirm that packet is sent back to indigo plant
Tooth transmitter.Bluetooth transmitters detect whether to receive the confirmation packet from Bluetooth Receiver, to generate broadcast results.Bluetooth is sent out
Emitter can judge whether the broadcast operation of data packet succeeds according to broadcast results.If the broadcast operation of data packet is unsuccessful,
So data packet can be re-broadcast Bluetooth Receiver by bluetooth transmitters.
In the exemplary embodiment, wherein the WiFi configuration informations include the WiFi SSID for receiving terminal
(Service Set Identifier, service set), password, IP (Internet ProtocolAddress, internet protocol
Discuss address either internet protocol address) in address information etc. any one or it is a variety of.SSID is typically Wireless LAN
The network name of equipment in (LocalArea Network, LAN) subsystem.
In the embodiment of the present invention, the code stream receiving module for receiving terminal is received by the wireless connection from described
Laptop transmitted stream information.
In the embodiment of the present invention, the reception terminal is based on 802.11AD wireless LAN communications standard agreement and receives notes
The compressed frame data that this computer is sent, that is, receive the code stream information transmitted by the laptop.
In the embodiment of the present invention, compressed frame data described in the reception terminal-pair are decoded processing.It needs to illustrate
, decoder module, can be to compressed frame data progress decompression processing with decompressing function.
In the embodiment of the present invention, the reception decoded frame data of terminal plays play the code on laptop
Stream information, code stream information described here include the display data on the screen and audio, video data on laptop.
As described above, the present embodiment receives the frame data transmitted by laptop, the frame data after reception are solved
Code processing, and the frame data after broadcast decoder so that the display data on the screen and sound received on terminal plays laptop regards
Frequency evidence passes screen purpose to realize.
In the embodiment of the present invention, the code stream information is sent to display device by the code stream receiving module for receiving terminal
For showing.
In the exemplary embodiment, the code stream broadcast module for receiving terminal can start code stream Push Service；It and will
The code stream information received is broadcasted by direct-broadcasting code stream agreement.
In the exemplary embodiment, the code stream information received is broadcasted by the code stream for receiving terminal
Module and use direct-broadcasting code stream agreement are broadcasted, such as the address of the code stream Push Service can be broadcasted by ultrasonic wave
Information, played in the local user terminal according to described address information for the local user terminal in preset range described in
Code stream information；Wherein described address information includes IP and the URL (Uniform of the code stream Push Service of the code stream information
Resource Locator, uniform resource locator) chained address.
In the exemplary embodiment, the code stream information can also be sent to by the code stream receiving module for receiving terminal
Cloud server shows the code stream information for long-range strange land meeting room.
Wireless screen transmission method described in the embodiment of the present invention, user is allowed, which to use, has wireless connecting function (such as WiFi)
Wireless screen transmission device be inserted into first terminal for example, by USB interface, biography screen software is stored in wireless screen transmission device, described the
Described pass is run in one terminal and shields software, when the first terminal receives the WiFi configuration informations for receiving terminal broadcast
Afterwards, it establishes based on wireless LAN communication standard agreement (such as 802.11n, 802.11ac, 5GHz frequency ranges) described first terminal
And the wireless connection received between terminal.If the first terminal is in some video conference, and first eventually
The equipment of shared screen-picture (may include audio) in need in the residing place in end, that is, (it can for the second terminal of wireless screen transmission
For desktop computer, laptop, mobile phone, etc.), in the appropriate operation acknowledgement of first terminal (for example, clicking " passing on screen
Screen " button) after, you can by the screen content (including picture and/or audio) of first terminal by the wireless connection established and
Second terminal is transmitted to, and cloud server is transmitted to via second terminal, so as in long-range strange land meeting room and other meetings
Member's (other terminals) shares, and each terminal for participating in video conference is allowed all to see the computer desktop shared.
On the other hand, if first terminal is not already logged into video conference, also wireless screen transmission device can be inserted into first terminal,
Pass through aforesaid operations, you can by the screen content of first terminal by wireless connection that wireless screen transmission device and second terminal are established and
Second terminal is transmitted to, to be shown on second terminal screen, to realize the local function of throwing screen.
In the present embodiment, by broadcasting WiFi configuration informations, so as to realize between first terminal and second terminal
Wireless connection, and the transmission of code stream information can be realized by the wireless connection.Further, it is also possible to by broadcasting code stream push clothes
IP and URL (Uniform Resource Locator, uniform resource locator) chained address of business, so that same
The first terminal of the indoor arbitrary user terminal of meeting such as seat distances second terminal farther out obtains the code of current video meeting
The broadcasting link of stream information so as to fulfill the function of the code stream information is played in its local user terminal, can solve in this way
It is distant to see the problem of second terminal shows the content shown on screen clearly, user experience is greatly improved, and should
The realization of method can share the ultrasonic wave broadcast mode of WiFi configuration informations, realize easy.
It in the embodiment of the present invention, is run on first terminal and grabs screen software, screen software grabs first terminal is grabbed by described
Frame data on screen, the frame data include at least display data on the screen and audio, video data；Frame data are encoded；To compiling
Frame data after code are compressed.The code stream information is sent to by the reception terminal by the wireless connection.
Wherein it is possible to compressed frame data are sent based on wireless LAN communication standard agreement.Optionally, according to wireless
The compressed frame data of local area network communication standard agreement modulating-coding obtain the radio frequency for meeting wireless LAN communication standard agreement
Signal emits the radiofrequency signal for meeting wireless LAN communication standard agreement by transmitting antenna.
As described above, the present embodiment first passes through the frame data grabbed on screen software grabs first terminal screen, it is then right successively
The frame data of crawl are encoded and are compressed, and are finally based on wireless LAN communication standard agreement and are sent compressed frame data,
It realizes the biography screen of first terminal screen.
As shown in figure 8, the reception terminal of wireless screen transmission is supported to include three modules：First broadcast module, code stream receive mould
Block and the second broadcast module.
Wherein described first broadcast module can be used for externally whole by the reception of ultrasonic wave or Bluetooth broadcast wireless screen transmission
The WiFi configuration informations such as WiFi SSID, password, the IP at end.The code stream receiving module, which can be used for receiving, comes from wireless biography
Screen device spillikin uploads the computer screen come transmitted by screen software and (is illustrated by taking laptop as an example in diagram, but originally
It is open that it's not limited to that) grab screen code stream, such as come from the audio and video on computer screen.
In the embodiment shown in fig. 8, the code stream that the code stream receiving module receives can be sent all the way to cloud service
Device (if present terminal is in a Multi-Party Conference), another way can send to local the second broadcast module (or
Referred to as code stream broadcast module).The code stream broadcast module can be used for pushing away in reception terminal local one code stream of startup
Business is taken, the screen code stream of coming will be received, passes through RTMP (Real Time MessagingProtocol, real-time messages transmission association
View) a kind of direct-broadcasting code streams agreement such as/HLS (HTTP Live Streaming, dynamic code rate adaptive technique) broadcasted, supplied
The user distant for example with receiving the display screen of terminal, uses the local handset of oneself, local electricity in local meeting room
The equipment such as brain, local pad are closely watched.
In the embodiment shown in fig. 8, the biography screen software on screen device is passed, after running on computers, is supported through computer
Microphone listens to ultrasonic wave broadcast (frequency>20KHz), the letters such as WiFi SSID, password, IP of receiving terminal are parsed by sound wave
Breath, carries out the wireless connection between the computer and the reception terminal, and the audio-video code stream that screen is grabbed on computer is sent to reception eventually
Wireless screen transmission is realized at end.Terminal is received after code stream is received, can be shown by locally-attached display screen.
It, can be by reception terminal by sending out about the Wi-Fi configuration informations of wireless screen transmission hot spot in the embodiment of the present invention
Ultrasonic wave or by way of bluetooth, is broadcasted in the room.The data that the ultrasonic wave (or bluetooth) is transmitted, can be by pacifying
The biography screen program of dress on computers listens to, and after carrying out data decoding, further passing screen program can be directly connected to accordingly
Screen data transmission channel is grabbed in Wi-Fi Hotspot, foundation.In this way, passing screen device hardware, there is no need to be configured in reception terminal.
In the embodiment of the present invention, in ultrasonic wave broadcast, clothes can also be pushed simultaneous with the code stream for receiving terminal initiation
The address (the specific URL short chains of IP+ connect) of business is in the user of same meeting room, can use the personal devices such as computer, mobile phone,
The software client of video conference is opened, searches for neighbouring code stream live streaming, address is pushed by the code stream for parsing ultrasonic wave, you can
To receive code stream on these personal devices, the Screen sharing content of the synchronous viewing computer on personal device is realized.Due to ultrasound
Wave is broadcasted in local meeting room, can be by the barrier obstructions such as wall, shielding, and user and equipment outside meeting room, are nothings
Method obtains the broadcast address in ultrasonic wave, so as in turn ensure the safety of meeting.
For example, in meeting room larger between one, although computer screen has been transferred on the large-size screen monitors for receiving terminal, but if
Compare rearward, apart from the distant user of large-size screen monitors, the still possibly content that can not be seen clearly on large-size screen monitors position.In the embodiment of the present invention
Screen broadcast mechanism is passed by increasing by one, sits to obtain position user farther out, mobile phone, pad, laptop, desk-top can be used
The personal devices such as computer, the information broadcasted by receiving ultrasonic wave, you can obtain a live streaming link, click this link, i.e.,
Biography screen content such as image can be watched on the personal device of oneself, so as to zoomed image, therefore is seen with being apparent from
It sees, so as to solve the problems, such as that position does not see large-size screen monitors rearward.
Can be a storage device for being similar to USB flash disk it should be noted that the biography screen device hardware in above-mentioned Fig. 8, it can be with
As the storage and installation equipment for passing screen software.
In the embodiment of the present invention, by using the wireless screen transmission device with general-purpose interface, in any terminal of video conference
This wireless screen transmission device is inserted into for example, by USB interface, you can (the local screen of throwing that can also be used for non-meeting is drilled in video conference
Showing) key easily shares such as computer screen picture and demonstrated.It has the advantage that in this way：On the one hand, user's operation is convenient,
It need not be installed in the second terminal of screen-picture to be shared in advance and pass screen software, without cumbersome operation, you can regarding in many ways
(or local screen of throwing is demonstrated), one-key sharing computer desktop in frequency meeting；On the other hand, content share transmission is relatively reliable, makes
The data of screen device and second terminal are transmitted with the corresponding band of wireless LAN communication standard agreement, shield device and second passing
For terminal in the case of same meeting room, data transmission is more reliable and more stable.
As shown in figure 9, the long-range meeting room 1 in strange land or meeting room 2, the computer that screen code stream is grabbed with sending is same
In multipart video-meeting, it can also dispose and similarly receive terminal with local meeting room.The reception terminal can be from cloud service
Device receives code stream, and (local here is local, but opposite for referring to the opposite strange land meeting room 1 or meeting room 2 local
It is strange land for local meeting room in Fig. 8) display；The code stream received is locally opened in meeting room 1 or meeting room 2 simultaneously
Activity code stream Push Service watches distal end meeting room, that is, Fig. 8 institutes for the user in meeting room 1 or meeting room 2 by personal device
Computer in the local meeting room shown shares content.
Figure 10 is the schematic diagram according to a kind of multi-functional wired biography screen pattern for passing screen device shown in an exemplary embodiment.
As shown in Figure 10, it is assumed here that first terminal is laptop, and the multi-functional screen device that passes is inserted by USB interface
In the USB interface of the laptop, meanwhile, which is inserted by USB cable in its USB Type-C interface,
And the other end of the USB cable is inserted into the USB interface for receiving terminal, it is achieved thereby that the laptop connects with this
Receive the wired connection between terminal.The biography screen software stored in the multi-functional biography screen device, crawl are run in the laptop
Screen on the laptop grabs screen code stream, and the screen grabbed is grabbed screen code stream and is sent to second eventually by USB cable
End is it is assumed that receive terminal, so as to be shown on the display screen for receiving terminal.
Figure 11 is the signal according to the multi-functional wired biography screen pattern for passing screen device of the another kind shown in an exemplary embodiment
Figure.
As shown in figure 11, it is assumed here that first terminal is laptop, and the multi-functional screen device that passes is inserted by USB interface
In the USB interface of the laptop, meanwhile, which is inserted by USB cable in its USB Type-C interface,
And be inserted into the other end of the USB cable in the USB interface for the code stream receiving module for receiving terminal, it is achieved thereby that the pen
Remember the wired connection between this computer and the reception terminal.Multi-functional pass is run in the laptop and shields what is stored in device
Screen software is passed, the screen on the laptop is captured and grabs screen code stream, and the screen grabbed is grabbed into screen code stream and passes through USB cable
The code stream receiving module for receiving terminal is sent to, so as to be shown on the display screen for receiving terminal.
In addition, the reception terminal further includes code stream broadcast module, the code stream broadcast module can be by code stream receiving module
The screen of the laptop received is grabbed screen code stream and is broadcasted to indoor local pad, local handset or the local of local meeting
In computer etc. any one or it is a variety of.
By the description of above embodiment, those skilled in the art is it can be readily appreciated that example embodiment described herein
It can be realized, can also be realized in a manner that software is with reference to necessary hardware by software.Therefore, implemented according to the present invention
The technical solution of example can be embodied in the form of software product, which can be stored in a non-volatile memories
In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) or on network, including some instructions so that a computing device (can
To be personal computer, server, mobile terminal or network equipment etc.) it performs according to the method for the embodiment of the present invention.
It is particularly shown and described exemplary embodiment of the present invention above.It should be appreciated that the present invention is not limited to
Detailed construction described herein, set-up mode or implementation method；On the contrary, it is intended to cover included in appended claims
Various modifications and equivalence setting in spirit and scope.
In addition, structure, ratio, size shown by this specification attached drawing etc., only coordinating disclosed in specification
Content, for skilled in the art realises that with reading, being not limited to the enforceable qualifications of the disclosure, therefore not having skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the disclosure
Under raw technique effect and achieved purpose, it should all still fall and obtain the range that can cover in the technology contents disclosed in the disclosure
It is interior.Meanwhile in this specification it is cited such as " on ", " first ", " second " and " one " term, be also only convenient for narration
Understand rather than to limit the enforceable range of the disclosure, relativeness is altered or modified, in without substantive change technology
It holds, when being also considered as the enforceable scope of the present invention.
Claims (10)
1. a kind of multi-functional biography screen device, including：
First physical interface, for connecting first terminal；
Second physical interface, for connecting second terminal；
Screen mode switch module is passed, the first terminal is connected to for working as first physical interface, and detects described the
When two physical interfaces are not connected to the second terminal, the multi-functional biography screen device is switched into the first biography screen pattern；Work as institute
It states the first physical interface and is connected to the first terminal, and detect that second physical interface is connected to the second terminal
When, the multi-functional biography screen device is switched into the second biography screen pattern.
2. multi-functional biography screen device according to claim 1, wherein, first physical interface is USB interface.
3. multi-functional biography screen device according to claim 1, wherein, second physical interface connects for USB Type-C
Mouthful.
4. multi-functional biography screen device according to any one of claims 1 to 3, wherein, described first passes screen pattern passes to be wireless
Screen pattern, described second passes screen pattern as wired biography screen pattern.
5. a kind of multi-functional biography screen system, including：
First terminal, the first terminal include first terminal interface；
Second terminal；And
Multi-functional biography screen device as described in claim 1.
6. multi-functional biography screen system according to claim 5, wherein, the second terminal includes second terminal interface, uses
It is connect in multi-functional second physical interface for passing screen device.
7. multi-functional biography screen system according to claim 6, wherein, the second terminal interface and second physics connect
It is connected between mouthful by USB cable.
8. a kind of multi-functional screen transmission method, including：
Judge whether multi-functional the first physical interface for passing screen device connect with first terminal；
When first physical interface is connected to the first terminal, judge that multi-functional second physics for passing screen device connects
Whether mouth connect with second terminal；
When second physical interface is not connected to the second terminal, the multi-functional biography screen device is switched into the first biography
Screen pattern；
When second physical interface is connected to the second terminal, the multi-functional biography screen device is switched into the second biography screen
Pattern.
9. multi-functional screen transmission method according to claim 8, wherein, first physical interface is USB interface, described the
Two physical interfaces are USB Type-C interfaces.
10. multi-functional screen transmission method according to claim 8 or claim 9, wherein, described first passes screen pattern as wireless screen transmission mould
Formula, described second passes screen pattern as wired biography screen pattern.
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