CN102883134B - Screen sharing and controlling method for video conference system - Google Patents

Screen sharing and controlling method for video conference system Download PDF

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Publication number
CN102883134B
CN102883134B CN201210430692.4A CN201210430692A CN102883134B CN 102883134 B CN102883134 B CN 102883134B CN 201210430692 A CN201210430692 A CN 201210430692A CN 102883134 B CN102883134 B CN 102883134B
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screen sharing
screen
video
video conference
sharing
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CN201210430692.4A
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Chinese (zh)
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CN102883134A (en
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刘天成
高锦欣
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成都飞视美视频技术有限公司
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Abstract

The invention relates to a computer data sharing technology, in particular to a screen sharing and controlling method for a video conference system. According to the scheme of the invention, the screen sharing and controlling method mainly comprises the following steps: a video conference terminal and a server establish communication connection with a screen, a screen sharing device and the server establish a video transmission channel, the screen sharing device collects the screen sharing data per se and sending the screen sharing data to the video conference terminal; the video conference terminal copies the received screen sharing data and forwards to the server; the server sends the screen sharing data to the screen sharing device; and finally screen sharing device receives and displays the screen sharing data. The screen sharing and controlling method for the video conference system has the advantages that: a plurality of PC desktops and mobile device desktops can be shared at the same time in the video conference, and other users can remotely adjust the resolution and other parameters of the device terminal in the parameter setting mode in the video conference. The screen sharing and controlling method is particularly suitable for the video conference system.

Description

For Screen sharing and the control method of video conferencing system

Technical field

The present invention relates to computer data technology of sharing, relate to a kind of Screen sharing for video conferencing system and control method specifically.

Background technology

Along with the development of information technology, network has become the important means of Information Communication.Interactive as a kind of new interactive mode based on Long-distance Control and operation, allow user not need on the spot in personly just can realize identical interaction, the viewing in strange land and operation.Wherein Desktop Share is a kind of important application in data sharing, special in the disparate networks communication systems such as the network teleconference, IM immediate communication tool, being often used in document display, operation demonstration, synergetic office work etc., is that the interactive mode such as audio frequency and video, text message is important and effectively supplement.

The Screen sharing technology that video conference, IM immediate communication tool etc. use mostly is at present the process implementation adopting the decoding of common screenshot capture, local coder, transmission on-screen data, far-end, distal displayed.

If application number is the Chinese patent of 200910189480.x, main technical schemes is send desktop request command to controlled terminal by main control end, the content that current screen content and screen display upgrade, after reception Desktop Share, is sent to opposite end, realizes Screen sharing by controlled terminal in real time.

And for example application number is the Chinese patent of 200810220423.9, main technical schemes be by shared line end is carried out mouse message collection, desktop picture collection, compression coding image, piecemeal, packing, transmission packet to hold to MCU, MCU to control end and beholder send image, control end sends control command to MCU, MCU forwards control command, share line end performs the control command of response thus achieve sharing and Long-distance Control of screen.

The Screen sharing of other some comparative maturities and control tool are as VNC, and primarily of a service end, multiple client forms.VNC is by gathering desktop picture, gathering image change part, being sent to client when gathering, and client carries out decoding display or send order controlling.

These traditional Screen sharing technology, system or instruments all can only realize the Screen sharing of current shared line end the machine in Screen sharing, i.e. a shared line end, the pattern of multiple beholder, and its application in video conference is quite limited to.And along with the high speed development of information system and business, the pattern of a traditional shared line end, multiple beholder can not have been met consumers' demand again, and need multiple shared line end, pattern that multiple beholder checks arbitrarily.

And current HDMI high definition share desktop: be mainly used in some video conference fields at present, be mainly seen in Polycom, Warburg Pincus etc.It mainly fills the high definition capture card that is supported HDMI on video conference terminal, high definition HDMI wire is adopted to dock the PC, notebook computer etc. with HDMI, then expand display mode by desktop, desktop is simultaneously displayed on current screen and video conference terminal video frequency collection card.Screen is then broadcast to other users in video conference with a road video mode by video conference terminal.Although HDMI high definition share desktop can provide multiple PC Desktop Share by increasing capture card mode, there is many limitation in it, comprising: need the PC of shared screen to support HDMI, and current more PC or notebook are on the market all without this interface; The limited length of HDMI wire, and the connection of PC and terminal is constant, has larger limitation; Video conference terminal often supports that a road PC access need fill a video frequency collection card, need fill multiple, thus improve cost dramatically when need access multichannel.

Therefore current Screen sharing technology all can not meet the needs of video conferencing system.

Summary of the invention

Technical problem to be solved by this invention is exactly for the deficiencies in the prior art, proposes a kind of Screen sharing for video conferencing system and control method.

The present invention solves the problems of the technologies described above adopted technical scheme: for Screen sharing and the control method of video conferencing system, it is characterized in that, comprise the following steps:

A. video conference terminal and server and Screen sharing equipment establish a communications link, and described Screen sharing equipment is one or more in PC, notebook computer, smart mobile phone and panel computer;

B. Screen sharing equipment and server set up transmission of video passage;

C. video conference terminal receives the Screen sharing control command that user sends;

D. select according to Screen sharing control command and arrange Screen sharing equipment, Screen sharing equipment gathers self screen sharing data, and the screen sharing data collected is sent to video conference terminal;

E. the screen sharing data received carries out copying and being transmitted to server by video conference terminal;

F. screen sharing data is sent to Screen sharing equipment by server;

G. Screen sharing equipment receive and display screen share data.

Concrete, step a is further comprising the steps of:

A1. video conference terminal sets up network service Connection Service, and providing end confession needs the Screen sharing equipment connection of shared screen;

A2. video conferencing system is by network attached server, and verifies in connection procedure, if be proved to be successful, be then connected with the server service of foundation and enter step a3, if authentication failed, then disconnecting, described connection is wired and/or wireless connections;

A3. video conference terminal creates abstract video data objects, and the video of connection server forwards service.

Concrete, step b is further comprising the steps of:

B1. the signal of Screen sharing equipment receiver, video conference terminal, judges whether video conference terminal is connected to the video forwarding service of server, if so, then enters step b2, if not, does not then deal with;

B2. Screen sharing device initialize local video collector and encoder, sets up transmission of video passage with server.

Concrete, step b2 is further comprising the steps of:

B21. judge whether user specifies voluntarily and share screen area, if so, then enter step b22, if not, be then defaulted as full frame sharing and initializes video collector;

B22. receive and resolve the Screen sharing region of user's input, and initializes video collector.

Concrete, described transmission of video passage is the data transmission channel set up according to TCP or UDP host-host protocol.

Concrete, described Screen sharing control command comprise in the Screen sharing facility information providing shared, the Screen sharing facility information receiving the information of sharing, Screen sharing device screen resolution, Screen sharing scope, coded format and transmission of video code check one or more.

Concrete, step c is further comprising the steps of:

C1. video conference terminal receives and analyzes the Screen sharing control command that user sends, the address of the address parsing the Screen sharing equipment providing shared and the Screen sharing equipment receiving the information of sharing, the described address providing shared Screen sharing equipment is one or more, and the address that the Screen sharing equipment of information is shared in described reception is one or more;

C2. the address of the Screen sharing equipment receiving the information of sharing is sent to server by video conference terminal;

C3. server is set up to receive list and be stored in the address of the Screen sharing equipment receiving the information of sharing and is received in list.

Concrete, steps d is further comprising the steps of:

D1. video conference terminal obtains the resolution information that Screen sharing equipment is supported, and contrast with the resolution that video conference terminal is supported, draw video conference terminal support and the resolution information group also supported of Screen sharing equipment, resolution information group is sent to server;

D2. resolution information group is fed back to user by server, user carries out Screen sharing optimum configurations according to resolution information group, one or more in the origin coordinates that described optimum configurations comprises screen resolution, screen is picked up, the terminal point coordinate of screen scraping, Screen sharing compression coding mode and Screen sharing code check;

D3. the parameter setting information of user is sent to video conference terminal by server, and video conference terminal is transmitted to shared display device and performs.

Concrete, step f is further comprising the steps of:

F1. server reads the Screen sharing device address received in list;

F2. video is shared data and be sent to all Screen sharing equipment according to Screen sharing device address.

Concrete, step g is further comprising the steps of:

G1. Screen sharing equipment judges receive and resolve screen sharing data, judge whether the screen sharing data of current reception includes multiple Screen sharing device screen data, if judge, current screen shared device is one, then direct shared terminal on-screen data is presented on screen, if judge, current screen shared device is multiple, then enter step g 2;

G2. all Screen sharing device screen data be all presented on screen, the control command according to user's input carries out selectivity display.

Beneficial effect of the present invention is, realize in video conference, multiple PC desktop and mobile device desktop can be shared simultaneously, simultaneously in video conference, other users by optimum configurations mode, parameters such as the resolution of long-range adjustment device end, and simultaneously can show the equipment desktop of multiple share desktop in same screen, full framely fast and easily can zoom in or out any one share desktop, the multiple desktop screen met in video conference shares demand.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is video conference terminal and Screen sharing equipment connection flow chart;

Fig. 3 is Screen sharing equipment end initializes video collector flow chart;

Fig. 4 is video conference terminal initial screen shared device flow chart;

Fig. 5 arranges Screen sharing parameter flow chart for user is long-range.

Embodiment

Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail:

The present invention proposes the Screen sharing and the control method that are used for video conferencing system, mainly comprise the following steps: first video conference terminal and server and Screen sharing equipment establish a communications link, here communication connection refers to set up communication connection by wired and/or wireless network, and Screen sharing equipment is one or more in PC, notebook computer, smart mobile phone and panel computer; Screen sharing equipment and server set up transmission of video passage; Video conference terminal receives the Screen sharing control command that user sends; Select according to Screen sharing control command and arrange Screen sharing equipment, Screen sharing equipment gathers self screen sharing data, and the screen sharing data collected is sent to video conference terminal; The screen sharing data received carries out copying and being transmitted to server by video conference terminal, the object that video conference terminal carries out copying is to carry out fec decoder to the data received, uncompressed encoding work is carried out after fec decoder completes, obtain decoded video data stream and can carry out this locality broadcasting, thus make this locality can watch the screen video information shared; Screen sharing data is sent to Screen sharing equipment by server; Last Screen sharing equipment receives and display screen shares data.

In order to the technical scheme that more detailed description the present invention is total, set forth below by a concrete video conferencing system, as shown in Figure 1, for the structural representation of a kind of concrete video conference terminal and server and Screen sharing equipment connection, wherein server is made up of Windows Client and MCU, in the structure shown here, when checking terminal video by Windows Client by the forwarding of MCU, the desktop data information of equipment of checking 1, equipment 2 and equipment 3 can be selected, and corresponding remote control operation can be carried out according to mandate.Equipment 1, equipment 2 and equipment 3 also accessible Windows Client simultaneously, terminal is by the interface of access device 1, equipment 2, equipment 3 during MCU special secondary school access Windows Client.

The technical scheme total according to the present invention, the mode that syndeton described in Fig. 1 carries out Screen sharing is, first order is shared by the one or more initiation videos in equipment 1, equipment 2 and equipment 3, terminal carries out self on-screen data collection according to share in command selection equipment 1, equipment 2 and equipment 3 one or more, the shared data collected are sent to terminal, be sent to MCU after being copied by terminal, shared data retransmission is given and is initiated the equipment that video shares order by last MCU.

The mode that a kind of concrete video conference terminal and server and Screen sharing equipment establish a communications link is:

As shown in Figure 2, first video conference terminal sets up network service Connection Service, providing end confession needs the Screen sharing equipment connection of shared screen, as set up network communication Connection Service SocketServer on existing video conference terminal equipment, and start SocketServer service, open service port connects for needing the PC service of shared screen, on the equipment that needs are shared, then creates Socket connect, then video conferencing system passes through network attached server, be mainly and be connected to SocketServer server by IP network, and carry out video conference terminal access authentication, a kind of concrete authentication mode is that terminal sets up corresponding connection password or key when starting SocketServer, equipment is when accessing connection video conference terminal equipment SocketServer, send corresponding password to verify, be proved to be successful rear foundation service to connect, during authentication failed, video conference terminal off device connects, the request of refusal equipment connection, described connection is wired and/or wireless connections, final video conference terminal creates abstract video data objects, and the video of connection server forwards service, creating abstract video data objects creates identical with the concrete camera data object in video conferencing system, there is identical behavior and attribute, but its behavior is different from the imbody mode of attribute.When difference is to start concrete camera collection video data, its behavior is embodied as calls video frequency collection card, by camera collection image information, return video conferencing system, and data that Desktop Share equipment sends need be received during abstract video data objects image data and forward.Also there are some and distinguish in its camera relative parameters setting and screen control associative operation attribute and behavior, finally after video conferencing system registers video data information success to MCU, sends video data to succeed in registration message to screen equipment end to be shared.

A kind of method that concrete Screen sharing equipment and server set up transmission of video passage is:

First the signal of Screen sharing equipment receiver, video conference terminal, judges whether video conference terminal is connected to the video forwarding service of server, if, then Screen sharing device initialize local video collector and encoder, set up transmission of video passage with server, if not, then do not process.Wherein video collector is a kind of general screen video acquisition technique, carries out picture shear collection by fixed frequency to screen, each frame is carried out data buffering and forms the collection that video flowing realizes video data.Fixed frequency refers to the quantity of collection screen shots per second, leads to and is specified by user, adopt default value in the unspecified situation of user.Fixed frequency is higher, and the video of collection is more smooth, and bandwidth occupancy is also higher simultaneously.Encoder carries out the encoder of video compression, coding before referring to video network transmission to the Desktop Share video flowing gathered.Encoder adopts current techique and agreement, mainly comprises H264, X264, MPEG4 etc.

A kind of method of concrete Screen sharing device initialize local video collector is:

First judge that whether user specifies voluntarily and share screen area, if so, then receive and resolve the Screen sharing region of user's input, if not, being then defaulted as full frame sharing and initializes video collector.

As shown in Figure 3, a kind of flow process of concrete Screen sharing equipment end initializes video collector is: after Screen sharing equipment end receives terminal virtual video object initialization success message and virtual video object information, start local video collecting thread, then the resolution in virtual video information is obtained, according to the resolution got, local resolution is set, then initialization desktop screen shares acquisition target (comprising acquisition range, coded format and code check etc.), and last notification terminal equipment video initialization success also sets up video communication passage.

A kind of scheme is, described transmission of video passage is the data transmission channel set up according to TCP or UDP host-host protocol, and the equipment of video conference terminal and screen to be shared is in same local area network (LAN) under normal circumstances, and network transfer speeds is higher, packet loss is low, and acquiescence adopts TCP to connect transmission.But user also can follow according to actual demand, select UDP or TCP transmission.

Concrete, described Screen sharing control command comprise in the Screen sharing facility information providing shared, the Screen sharing facility information receiving the information of sharing, Screen sharing device screen resolution, Screen sharing scope, coded format and transmission of video code check one or more.

A kind of method that concrete video conference terminal receives the Screen sharing control command that user sends is:

Video conference terminal receives and analyzes the Screen sharing control command that user sends, the address of the address parsing the Screen sharing facility information providing shared and the Screen sharing facility information receiving the information of sharing, the described address being enhanced shared Screen sharing equipment is one or more, and the address that the Screen sharing equipment of information is shared in described reception is one or more; Then video conference terminal is sent to server by receiving the address of sharing information screen shared device; Last server is set up to receive list and be stored in the address of the Screen sharing equipment receiving the information of sharing and is received in list.The object of this programme is that improve a kind of multiple Screen sharing equipment shares screen simultaneously, and has multiple receiving equipment to receive the solution sharing screen message.

A kind of concrete Screen sharing equipment method to set up is:

First video conference terminal obtains the resolution information that Screen sharing equipment is supported, and contrast with the resolution that video conference terminal is supported, draw video conference terminal support and the resolution information group also supported of Screen sharing equipment, resolution information group is sent to server; Then resolution information group is fed back to user by server, user carries out Screen sharing optimum configurations according to resolution information group, one or more in the origin coordinates that described optimum configurations comprises screen resolution, screen is picked up, the terminal point coordinate of screen scraping, Screen sharing compression coding mode and Screen sharing code check; The parameter setting information of user is sent to video conference terminal by last server, and video conference terminal is transmitted to shared display device and performs.

The flow process of concrete video conference terminal initial screen shared device as shown in Figure 4, when Screen sharing equipment is connected with video conference terminal, video conference terminal receives the authentication password of screen shared device, after being verified, at this locality establishment video information object and to MCU server log video connection data, as LoginMediaServer, then terminal obtains registration MCU result, if failure, then notification screen shared device therefore MCU registration failure and cause sharing unsuccessfully, if succeeded in registration, then terminal obtains resolution from Screen sharing device end, then obtain according to the resolution of terminal support the resolution that video conferencing system supports this equipment, then initializes video conferencing information, comprise resolution, coded format and code check etc., last notification screen shared device video initialization success and initialization information.

User is long-range arranges the flow process of Screen sharing parameter as shown in Figure 5, when setting is shared screen resolution, the resolution acquisition request of screen support is first initiated to MCU, screen resolution request forward is given the video conference terminal connecting Screen sharing by MCU, and order is sent to the equipment end of shared screen by video conference terminal.The screen resolution data message that equipment end acquisition local device is supported also sends to the video conference terminal be connected with this equipment.The resolution supported with video conferencing system after video conference terminal receives facility information is compared, draw video conferencing system support and the resolution information group that Screen sharing equipment is also supported sends to MCU server, resolution information is forwarded to the video conference client of request resolution data by MCU server.After getting the resolution that can arrange, the parameter information of Screen sharing is arranged, and the information after arranging is sent to MCU server end.Wherein Screen sharing optimum configurations comprises: the origin coordinates that screen resolution, screen are picked up, the terminal point coordinate of screen scraping, Screen sharing compression coding mode, Screen sharing code check are arranged.Last MCU receives the information and order be transmitted to the video conference terminal be connected with Screen sharing that video conference client sends.After video conference terminal receives order and by transferring order to Screen sharing equipment, Screen sharing equipment performs related command.

Step 28, when Screen sharing equipment performs related command in step 27, need check Parameters variation situation, not process unchanged parameter; Carry out Screen sharing collection to the parameter of change to reinitialize; Resolution is arranged and carries out the setting of invocation facility resolution changing

A kind of method that concrete server carries out screen sharing data transmission is:

First server reads the Screen sharing device address received in list; Then video is shared data and be sent to all Screen sharing equipment according to Screen sharing equipment place.

A kind of concrete Screen sharing equipment receives and the method that display screen shares data is:

First Screen sharing equipment judges receive and resolve screen sharing data, judge whether the screen sharing data of current reception includes multiple Screen sharing device screen data, if judge, current screen shared device is one, then direct shared terminal on-screen data is presented on screen, if judge, current screen shared device is multiple, then all Screen sharing device screen data be all presented on screen, the control command according to user's input carries out selectivity display.Selectivity display refers to that user can control current same screen and present multiple shared screen video in formed objects mode, and can change arbitrarily the position that screen presents.Also can at the current screen screen video that larger display one is shared emphatically, other screen videos shared show in less mode.The screen video that any one is shared can also be displayed in full screen simultaneously.And same screen is when the video stream that display screen is shared, also can other information of simultaneously display video meeting, comprising: other videos, electronic whiteboard, text chat, document sharing, multimedia are shared.

While user obtains Screen sharing information, the screen resolution of all right Remote Acquisitioning and amendment Screen sharing equipment, and the parameter of energy remotely modifying screen capture device, certainly control for the ease of management, the user terminal that can be respectively different arranges different authorities, retrains its control authority in whole video conferencing system.

Claims (7)

1., for Screen sharing and the control method of video conferencing system, it is characterized in that, comprise the following steps:
A. video conference terminal and server and Screen sharing equipment establish a communications link:
A1. video conference terminal sets up network service Connection Service, and providing end confession needs the Screen sharing equipment connection of shared screen, and described Screen sharing equipment is one or more in PC, notebook computer, smart mobile phone and panel computer;
A2. video conferencing system is by network attached server, and verifies in connection procedure, if be proved to be successful, be then connected with the server service of foundation and enter step a3, if authentication failed, then disconnecting, described connection is wired and/or wireless connections;
A3. video conference terminal creates abstract video data objects, and the video of connection server forwards service;
B. Screen sharing equipment and server set up transmission of video passage:
B1. the signal of Screen sharing equipment receiver, video conference terminal, judges whether video conference terminal is connected to the video forwarding service of server, if so, then enters step b2, if not, does not then deal with;
B2. Screen sharing device initialize local video collector and encoder, sets up transmission of video passage with server;
C. video conference terminal receives the Screen sharing control command that user sends:
C1. video conference terminal receives and analyzes the Screen sharing control command that user sends, the address of the address parsing the Screen sharing equipment providing shared and the Screen sharing equipment receiving the information of sharing, the described address providing shared Screen sharing equipment is one or more, and the address that the Screen sharing equipment of information is shared in described reception is one or more;
C2. the address of the Screen sharing equipment receiving the information of sharing is sent to server by video conference terminal;
C3. server is set up to receive list and be stored in the address of the Screen sharing equipment receiving the information of sharing and is received in list;
D. select according to Screen sharing control command and arrange Screen sharing equipment, Screen sharing equipment gathers self screen sharing data, and the screen sharing data collected is sent to video conference terminal;
E. the screen sharing data received carries out copying and being transmitted to server by video conference terminal;
F. screen sharing data is sent to Screen sharing equipment by server;
G. Screen sharing equipment receive and display screen share data.
2. the Screen sharing for video conferencing system according to claim 1 and control method, it is characterized in that, step b2 is further comprising the steps of:
B21. judge whether user specifies voluntarily and share screen area, if so, then enter step b22, if not, be then defaulted as full frame sharing and initializes video collector;
B22. receive and resolve the Screen sharing region of user's input, and initializes video collector.
3. the Screen sharing for video conferencing system according to claim 1 and control method, is characterized in that, described transmission of video passage is the data transmission channel set up according to TCP or UDP host-host protocol.
4. the Screen sharing for video conferencing system according to claim 1 and control method, it is characterized in that, described Screen sharing control command comprise provide shared Screen sharing facility information, receive share in the Screen sharing facility information of information, Screen sharing device screen resolution, Screen sharing scope, coded format and transmission of video code check one or more.
5. the Screen sharing for video conferencing system according to claim 4 and control method, it is characterized in that, steps d is further comprising the steps of:
D1. video conference terminal obtains the resolution information that Screen sharing equipment is supported, and contrast with the resolution that video conference terminal is supported, draw video conference terminal support and the resolution information group also supported of Screen sharing equipment, resolution information group is sent to server;
D2. resolution information group is fed back to user by server, user carries out Screen sharing optimum configurations according to resolution information group, described optimum configurations comprise in screen resolution, the origin coordinates of screen scraping, the terminal point coordinate of screen scraping, Screen sharing compression coding mode and Screen sharing code check one or more;
D3. the parameter setting information of user is sent to video conference terminal by server, and video conference terminal is transmitted to shared display device and performs.
6. the Screen sharing for video conferencing system according to claim 4 or 5 and control method, it is characterized in that, step f is further comprising the steps of:
F1. server reads the Screen sharing device address received in list;
F2. video is shared data and be sent to all Screen sharing equipment according to Screen sharing device address.
7. the Screen sharing for video conferencing system according to claim 6 and control method, it is characterized in that, step g is further comprising the steps of:
G1. Screen sharing equipment judges receive and resolve screen sharing data, judge whether the screen sharing data of current reception includes multiple Screen sharing device screen data, if judge, current screen shared device is one, then direct shared terminal on-screen data is presented on screen, if judge, current screen shared device is multiple, then enter step g 2;
G2. all Screen sharing device screen data be all presented on screen, the control command according to user's input carries out selectivity display.
CN201210430692.4A 2012-11-01 2012-11-01 Screen sharing and controlling method for video conference system CN102883134B (en)

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Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US9549006B2 (en) * 2013-07-31 2017-01-17 Cisco Technology, Inc. Self-adaptive sample period for content sharing in communication sessions
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CN103501345B (en) * 2013-10-12 2016-11-09 成都阜特科技股份有限公司 A kind of control method of remote centralized control system
CN103595715B (en) * 2013-11-08 2017-02-15 腾讯科技(成都)有限公司 Information sharing method and device for desktop live broadcasting
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CN105407169A (en) * 2015-12-08 2016-03-16 广东威创视讯科技股份有限公司 Desktop sharing method and system
CN105577819B (en) * 2016-01-26 2018-10-26 杭州碧创科技有限公司 A kind of share system of virtualization desktop, sharing method and sharing apparatus
CN105812450B (en) * 2016-02-01 2018-01-16 平安科技(深圳)有限公司 Desktop sharing method and system
CN107623657A (en) * 2016-07-13 2018-01-23 南京中兴新软件有限责任公司 media data transmission method, device and terminal
CN108206924A (en) * 2016-12-20 2018-06-26 展讯通信(上海)有限公司 Control method, device and the mostly logical terminal of multi-channel video call
CN108462853A (en) * 2017-02-22 2018-08-28 阿里巴巴集团控股有限公司 Control method, intelligent terminal and the video conference terminal of video conference terminal
CN106954099A (en) * 2017-03-31 2017-07-14 青岛海信移动通信技术股份有限公司 First terminal shows the method and system of the screen interface of second terminal
CN108965217B (en) * 2017-05-17 2020-10-27 中国科学院软件研究所 Multi-screen multimedia interaction system based on C/S framework
CN109218731A (en) * 2017-06-30 2019-01-15 腾讯科技(深圳)有限公司 The throwing screen method, apparatus and system of mobile device
CN107357585B (en) * 2017-07-13 2020-11-06 广州视源电子科技股份有限公司 Video acquisition method and device, video equipment and storage medium
CN107770255A (en) * 2017-09-27 2018-03-06 北京机电工程研究所 Terminal device data sharing master control device and method for collaborative work
CN107911437A (en) * 2017-11-10 2018-04-13 广州视睿电子科技有限公司 Method, apparatus, electronic equipment and the storage medium of Screen sharing
CN108021347A (en) * 2017-12-29 2018-05-11 航天科工智慧产业发展有限公司 A kind of method of Android terminal Screen sharing
CN108337467A (en) * 2018-01-23 2018-07-27 西安万像电子科技有限公司 Data processing method, conference system, storage medium and processor
CN110248145A (en) * 2019-06-25 2019-09-17 武汉冠科智能科技有限公司 A kind of with no paper meeting display control method, device and storage medium
CN110719502A (en) * 2019-09-18 2020-01-21 珠海格力电器股份有限公司 Remote picture synchronization method, device, equipment and system
CN110708494A (en) * 2019-10-15 2020-01-17 广州国音智能科技有限公司 Video conference display control method, terminal and readable storage medium
CN111193898A (en) * 2020-01-08 2020-05-22 随锐科技集团股份有限公司 Video conference system, control method thereof, and computer-readable storage medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101447998A (en) * 2008-12-25 2009-06-03 广东威创视讯科技股份有限公司 Desktop sharing method and system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4738805B2 (en) * 2004-12-16 2011-08-03 株式会社リコー Screen sharing system, screen sharing method, screen sharing program
US8473851B2 (en) * 2008-02-27 2013-06-25 Cisco Technology, Inc. Multi-party virtual desktop

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101447998A (en) * 2008-12-25 2009-06-03 广东威创视讯科技股份有限公司 Desktop sharing method and system

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