CN104038722A - Content interaction method and content interaction system for video conference - Google Patents
Content interaction method and content interaction system for video conference Download PDFInfo
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Abstract
The invention discloses a content interaction method and a content interaction system for video conference. Based on a whiteboard interaction service, a more important practical service extended on the basis of a dual-stream function, conference participating terminals carry out maker interaction in contents shared through an auxiliary video, and the problem of data interaction in conference television is solved. Meanwhile, due to the fact that the forms of content sharing in the auxiliary video are diverse, the invention further provides a new form of video conference, namely, a variety of commonly-used application software is directly used on a video conference terminal, which greatly enhances the usability of conference television. Therefore, the method and the system of the invention enable conference participators of a video conference to communicate more fully, make functions of a video conference terminal more powerful, and enable the goal of creating the feeling of participating in a conference in a same conference room whenever and wherever possible to be achieved more easily.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of content interaction method and system of video conference.
Background technology
Video conference is a kind of multi-media communication technology that allows the people that are in strange land realize " real-time, visual, mutual " by certain transmission medium, by existing various communication transfer media, the much informations such as static state/dynamic image of personage, voice, word, picture are distributed on each user's terminal equipment, make the user who disperses geographically can jointly pass through the various ways exchange of information such as figure, sound, increase the understandability to content in many ways, just as carry out meeting in same meeting-place.
Along with the development of video technique, user's demand is more and more abundanter, need video conferencing system that the transmission of video can not only be provided, but also should there is the additional function of sharing etc. video conferencing system by electronic whiteboard, two video technique, remote application, complete better the cooperation between participant.Video conferencing system will be not only for meeting, and become a multimedia cooperation platform.
The video conference TV functions occurring on the market is at present very abundant, not only there is the transmission of audio frequency, video, can also by two video streaming transmission technology H.239 agreement realize the transmission of auxiliary video, generally, main video transmits character image video, auxiliary video transmits needs shared content, and the producer also having has realized how auxiliary video capability, in same video conference, allows in many ways to send auxiliary video simultaneously.In addition, the terminal type of calling is also very abundant, except video conferencing equipment, and the network communication tool of all right calling handset, pad, Skype mono-class etc.
How on the basis that uses double-current function, expanding some even more important practical business, the participant each side of video conference is exchanged more fully, is this area problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of content interaction method and system of video conference is provided, and the participant each side of video conference is exchanged more fully.
The technical solution used in the present invention is that the content interaction method of described video conference, comprising:
The respectively side of the attending a meeting terminal of video conference is shared auxiliary video in main video showing, and based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video.
Further, the respectively side of the attending a meeting terminal of described video conference is shared auxiliary video, specifically comprises:
In the each side's of attending a meeting terminal, there is conference convening side's terminal;
Conference convening side's terminal, by the shared content being provided by the side's of the attending a meeting terminal that need to share content, is synchronized to the respectively side's of attending a meeting terminal; Described shared content comprises: application program picture and remote desktop, and wherein, the type of application program comprises: blank, office documents and entertainment applications software;
When the video conference side of attending a meeting terminal add up to two time, based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video for the respectively side of the attending a meeting terminal of described video conference, specifically comprises:
Arbitrary side of attending a meeting terminal, based on electronic whiteboard interactive service, is marked in the shared content presenting at auxiliary video, and described mark is sent to another side's of attending a meeting terminal; Described another side's of attending a meeting terminal receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
Further, when the video conference side of attending a meeting terminal add up to more than three time, described method also comprises:
Respectively the side's of attending a meeting terminal is provided with mark authority in advance; Or,
Conference convening side's terminal is respectively determining chairman's terminal in the side's of attending a meeting terminal, and the application of chairman's terminal based on the each side's of attending a meeting terminal is the each side's of attending a meeting terminal distribution mark authority, or is the each side's of attending a meeting terminal configuration mark authority in advance; Itself also has mark authority chairman's terminal.
Further, when the video conference side of attending a meeting terminal add up to more than three time, based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video for the respectively side of the attending a meeting terminal of described video conference, specifically comprises:
The arbitrary side's of attending a meeting terminal with mark authority, based on electronic whiteboard interactive service, is marked in the shared content presenting at auxiliary video, and gives other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks by described mark by conference convening side's terminal synchronizes; Described other side's of attending a meeting terminals are receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
The present invention also provides a kind of content exchange system of video conference, comprising:
The respectively side of the attending a meeting terminal of video conference, for sharing auxiliary video in main video showing, and based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video.
Further, in the each side's of attending a meeting terminal, there is conference convening side's terminal;
Conference convening side's terminal, for by the shared content being provided by the side's of the attending a meeting terminal that need to share content, is synchronized to the respectively side's of attending a meeting terminal; Described shared content comprises: application program picture or remote desktop, and wherein, the type of application program comprises: blank, office documents and entertainment applications software;
When the video conference side of attending a meeting terminal add up to two time, in described system, based on electronic whiteboard interactive service,
Arbitrary side of attending a meeting terminal, marks for the shared content presenting at auxiliary video, and described mark is sent to another side's of attending a meeting terminal;
Described another side's of attending a meeting terminal, for receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
Further, when the video conference side of attending a meeting terminal add up to more than three time: respectively the side's of attending a meeting terminal is provided with mark authority in advance; Or,
In the each side's of attending a meeting terminal, also there is chairman's terminal; Chairman's terminal, it is determined by conference convening side's terminal, is the each side's of attending a meeting terminal distribution mark authority for the application based on the each side's of attending a meeting terminal, or is the each side's of attending a meeting terminal configuration mark authority in advance; Itself also has mark authority chairman's terminal; Conference convening side's terminal, also for being defined as chairman's terminal according to the request of arbitrary side of attending a meeting terminal.
Further, when the video conference side of attending a meeting terminal add up to more than three time, in described system, based on electronic whiteboard interactive service,
Arbitrary side of attending a meeting terminal, in the time having mark authority, marks in the shared content presenting at auxiliary video, and gives other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks by described mark by conference convening side's terminal synchronizes;
Described other side's of attending a meeting terminals, for receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
Adopt technique scheme, the present invention at least has following advantages:
The content interaction method of video conference of the present invention and system, using the even more important practical business expanding on the basis of two video transmission stream functions, taking white board interactive business as basis, it is mutual that participant each side terminal is carried out mark in by the shared content of auxiliary video, solve a difficult problem for data interaction in video conferencing, simultaneously, owing to sharing the various informative of content in auxiliary video, the present invention also provides a kind of brand-new video conference form, directly on video conference terminal, use various common application software, greatly strengthen the ease for use of video conferencing.Therefore, the present invention can make the participant each side of video conference exchange more fully, makes the with better function of video conference terminal, from realizing whenever and wherever possible as the nearlyer step of the target of having a meeting in same meeting room.
Brief description of the drawings
Fig. 1 is the content interaction method flow chart of the video conference of first embodiment of the invention;
Fig. 2 is the particular flow sheet of first embodiment of the invention step S101;
Fig. 3 is the content exchange system composition schematic diagram of the video conference of third embodiment of the invention;
Fig. 4 is the special case composition schematic diagram of the content exchange system of the video conference of third embodiment of the invention;
Fig. 5 is the two video streaming transmission schematic diagram of three terminals of attending a meeting in application example of the present invention;
Fig. 6 is the mark interaction diagrams based on PPT document in application example of the present invention;
Fig. 7 is the flow chart of preserving PPT document and mark interaction content in application example of the present invention.
Embodiment
Technological means and effect of taking for reaching predetermined object for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in detail as after.
First embodiment of the invention, a kind of content interaction method of video conference, as shown in Figure 1, comprises following concrete steps:
Step S101, the respectively side of the attending a meeting terminal of video conference is shared auxiliary video in showing main video.
Concrete, for each side of attending a meeting terminal, its main video presents the meeting-place image information at local terminal and terminal place, other sides of attending a meeting, and auxiliary video presents the content that a certain side of attending a meeting terminal need to be shared in video conference.
In the each side's of attending a meeting terminal, have conference convening side's terminal, conference convening side's terminal is one and has MCU(Micro Control Unit, micro-control unit) terminal equipment of ability, can hold multipoint conference.As shown in Figure 2, from the angle of conference convening side's terminal, step S101 comprises following flow process:
S1: conference convening side's terminal creates video conference, by the mode of calling out successively, other side's of attending a meeting terminals is joined in video conference successively, and determines chairman's terminal.Such as: conference convening side's terminal can be defined as chairman's terminal according to the request of arbitrary side of attending a meeting terminal, while understanding in video conference, the respectively side's of attending a meeting terminal, including conference convening side's terminal, all can become chairman to conference convening side's terminal request, according to the time order and function of request, the side's of attending a meeting terminal that first request is become chairman by conference convening side's terminal is defined as chairman's terminal.
Conference convening side's terminal of the present embodiment has been preserved the address of all video conferences side of attending a meeting terminal, there is the ability that sends data to all sides of attending a meeting terminal, and the respectively receiving ability of the side's of attending a meeting terminal to vision signal of energy basis, the shared content sending is carried out sending to the side's of attending a meeting terminal after corresponding encoding and decoding.
S2: conference convening side's terminal, by the shared content being provided by the side's of the attending a meeting terminal that need to share content, is synchronized to the respectively side's of attending a meeting terminal.
In the present embodiment, conference convening side's terminal can oneself provide shared content, be synchronized to the respectively side's of attending a meeting terminal, or, conference convening side's terminal also can receive the shared content that arbitrary side of attending a meeting terminal is sent, be synchronized to and comprise conference convening side's terminal in the interior respectively side of attending a meeting terminal, the respectively side of the attending a meeting terminal here does not comprise provides the side of attending a meeting of this shared content terminal.Provide the side's of attending a meeting terminal of this shared content can be by local backstage directly by shared content synchronization in auxiliary video.
This shared content comprises: application program picture or remote desktop; Wherein, the type of application program comprises: blank, office documents and entertainment applications software etc.
In the present embodiment, shared content comprises polytype application program, provides the operating system of the side's of attending a meeting terminal of sharing content to adopt: the Linux+Android dual system of Ubuntu version.
At the follow-up mark that carries out when mutual, the mark doing in conference convening side's terminal also presents the arbitrary side's of attending a meeting terminal with mark authority shared content at the described side of the attending a meeting auxiliary video of terminal, is synchronized to other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks.
Step S102, based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video for the respectively side of the attending a meeting terminal of video conference.
Concrete, the application of chairman's terminal based on the each side's of attending a meeting terminal is the each side's of attending a meeting terminal distribution mark authority, or is the each side's of attending a meeting terminal configuration mark authority in advance; Itself also has mark authority chairman's terminal.The mark authority of chairman's terminal is the highest, because it is except having mark authority, and also will be to other side's of attending a meeting terminal distribution mark authorities.
When the video conference side of attending a meeting terminal add up to more than three time, the arbitrary side's of attending a meeting terminal with mark authority is based on electronic whiteboard interactive service, in the shared content presenting at auxiliary video, mark, and give other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks by described mark by conference convening side's terminal synchronizes; Described other side's of attending a meeting terminals are based on electronic whiteboard interactive service, receiving after described mark its Overlapping display in the shared content at auxiliary video, here, described other terminal of attending a meeting also comprises conference convening side's terminal interior, and conference convening side's terminal is synchronized in auxiliary video receiving after the described mark that the side's of attending a meeting terminal of making marks is sent.
In addition, the present embodiment also comprises a kind of special circumstances, when the video conference side of attending a meeting terminal add up to two time, only include conference convening side's terminal and the side of attending a meeting an adding terminal, now, it is mutual that these two side's of attending a meeting terminals will be carried out mark, must have mark authority simultaneously, therefore configure without carrying out optionally mark authority, and mark reciprocal process also need not be carried out transfer by conference convening side's terminal; In this case, arbitrary side of attending a meeting terminal, based on electronic whiteboard interactive service, is marked in the shared content presenting at auxiliary video, and described mark is sent to another side's of attending a meeting terminal; Described another side's of attending a meeting terminal is based on electronic whiteboard interactive service, receiving after described mark its Overlapping display in the shared content at auxiliary video.
Second embodiment of the invention, a kind of content interaction method of video conference, the present embodiment and the first embodiment are roughly the same, difference is, in the present embodiment, for the each side's of attending a meeting terminal is provided with mark authority in advance, so conference convening side's terminal need not be determined a chairman's terminal for distribute labels authority.
Third embodiment of the invention, a kind of content exchange system of video conference, comprising:
The respectively side of the attending a meeting terminal of video conference, for sharing auxiliary video in main video showing, and based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video.
Concrete, each side of attending a meeting terminal, for based on agreement H.239, presents the meeting-place image information at local terminal and terminal place, other sides of attending a meeting at main video, and auxiliary video presents the content that a certain side of attending a meeting terminal need to be shared in video conference.
As shown in Figure 3, in the each side's of attending a meeting terminal, there is conference convening side's terminal;
Conference convening side's terminal, be used for creating video conference, by the mode of calling out successively, other side's of attending a meeting terminals are joined in video conference successively, and determine chairman's terminal, such as: conference convening side's terminal can be defined as chairman's terminal according to the request of arbitrary side of attending a meeting terminal, while understanding in video conference, the respectively side's of attending a meeting terminal, including conference convening side's terminal, all can become chairman to conference convening side's terminal request, according to the time order and function of request, the side's of attending a meeting terminal that first request is become chairman by conference convening side's terminal is defined as chairman's terminal.
Conference convening side's terminal, also, for by the shared content being provided by the side's of the attending a meeting terminal that need to share content, is synchronized to the respectively side's of attending a meeting terminal; Described shared content comprises: application program picture or remote desktop; The type of application program comprises: blank, office documents and entertainment applications software etc.;
In the present embodiment, conference convening side's terminal can oneself provide shared content synchronization to the each side's of attending a meeting terminal, also can receive the shared content that arbitrary side of attending a meeting terminal is sent, then issue the respectively side's of attending a meeting terminal, the respectively side of the attending a meeting terminal here does not comprise provides the side of attending a meeting of this shared content terminal.Provide the side's of attending a meeting terminal of this shared content can be by local backstage directly by shared content synchronization in auxiliary video.
Conference convening side's terminal, the mark also doing for the shared content that the arbitrary side's of attending a meeting terminal with mark authority is presented at the described side of the attending a meeting auxiliary video of terminal, is synchronized to other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks.
Chairman's terminal, is the each side's of attending a meeting terminal distribution mark authority for the application based on the each side's of attending a meeting terminal, or is the each side's of attending a meeting terminal configuration mark authority in advance; Itself also has mark authority chairman's terminal.The mark authority of chairman's terminal is the highest, because it is except having mark authority, and also will be to other side's of attending a meeting terminal distribution mark authorities.
When the video conference side of attending a meeting terminal add up to more than three time, in described system, based on electronic whiteboard interactive service,
Arbitrary side of attending a meeting terminal, in the time having mark authority, marks in the shared content presenting at auxiliary video, and gives other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks by described mark by conference convening side's terminal synchronizes;
Described other side's of attending a meeting terminals, for receiving after described mark, by its Overlapping display in the shared content of auxiliary video; Here, described other terminal of attending a meeting also comprises conference convening side's terminal interior, and conference convening side's terminal is synchronized in auxiliary video receiving after the described mark that the side's of attending a meeting terminal of making marks is sent.
In addition, the present embodiment also comprises a kind of special circumstances, when the video conference side of attending a meeting terminal add up to two time, also, as shown in Figure 4, only include conference convening side's terminal and the side of attending a meeting an adding terminal, now, it is mutual that these two side's of attending a meeting terminals will be carried out mark, must have mark authority simultaneously, therefore configure without carrying out optionally mark authority, and mark reciprocal process also need not be carried out transfer by conference convening side's terminal.In this case, in described system, based on electronic whiteboard interactive service,
Arbitrary side of attending a meeting terminal, marks for the shared content presenting at auxiliary video, and described mark is sent to another side's of attending a meeting terminal;
Described another side's of attending a meeting terminal, for receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
Fourth embodiment of the invention, a kind of content exchange system of video conference, the present embodiment and the 3rd embodiment are roughly the same, difference is, in the present embodiment, respectively the side's of attending a meeting terminal is provided with mark authority in advance, so conference convening side's terminal need not be determined a chairman's terminal for distribute labels authority.
In the terminal of participating in video conference, carry out the mutual application example of mark based on technical scheme of the present invention to one below in conjunction with accompanying drawing 5-7.
White board interactive business when the terminal of participation video conference is used two video transmission stream, can solve a difficult problem for data interaction in video conference, can allow any participant side to sharing the operations such as content marks, and can allow these operations present to all participant sides, be the business that meets very much video conferencing application scenarios.
In auxiliary video, the background of blank comprises following three kinds of situations:
1) directly send blank, i.e. one section of white space, similarly opens a notepad, draws as background.
2) send document, such as: WORD, PPT, PDF, TXT etc., to draw taking document as background, it be markup document content that sight now needs.
3) send application program, draw taking application program picture as background.Application program comprises but is not limited to office software, entertainment software, remote application software etc.
Suppose to have tripartite to participate in video conference, three terminals of video conference access simultaneously.Terminal 1 sends two video streaming, taking PPT as blank background, send auxiliary video to terminal 2 and terminal 3, send can configure when two video streaming whether allow just can be mutual after white board interactive, application etc. option, after successfully sending, whole video conference is by the picture presenting as shown in Figure 5, the display format of picture can be selected according to individual need certainly, such as full screen display PPT, if the terminal of three screens or multi-screen can select a certain screen display to show PPT, other shield display video image.
Current video conferencing on the market can only be shared, can not be mutual, and this application example will be introduced the mutual operation flow of mark.
In the video conference of Fig. 5 is carried out, the participant who supposes terminal 2 has doubt in a certain in PPT, carry out description of symbols to PPT, and flow process is as Fig. 6.Want PPT to make marks, first must confirm to have and carry out mutual mark authority.This authority is that transmit leg is good by the chairman's terminal configuration in video conference in the time sending PPT, if be configured to allow alternately, any participant side all will have authority to draw to PPT; If just can be mutual after being configured to apply for, need to apply for to chairman, after acquisition chairman's approval, can draw.On terminal interface, the condition prompting that whether has limiting operation PPT will be shown.
Terminal 3 is equal to the status of terminal 2, so that terminal 3 is carried out mutual flow process is identical with terminal 2.Once all terminals all obtain mutual authority, all terminals can be drawn to PPT simultaneously, and can receive the drawing vestige of its other party to PPT simultaneously.
Strokes all when drawing are apparent in the terminal of all participant sides immediately, reach the requirement of real time operation Instantaneous sharing.
In video conference process, or after video conference finishes, can select shared content to preserve, comprising the content of carrying out mark in meeting to sharing content, flow process is as Fig. 7.The position of preserving can be current conference terminal, also can be kept at the peripheral hardware of terminal, such as USB flash disk.
In video conference process, often use office software, such as the Office of Microsoft, to reach the instant object of summing up of instant recording.Just install after office software can be on conference facility direct control office software, and current terminal interface can be sent to two video transmission streams and realize shared.When video conference is being carried out, relating to important speech etc. needs instant recording to get off, the operating personnel of certain terminal can pass through the newly-built word document of Menu key, record key content, can send if desired two video transmission streams, the current content that records is shared, and can be applied above-mentioned white board interactive function, allow other participants to keep a record and remark additionally.
Remote desktop application is the very high program of frequency of utilization in video conference.In this application example, remote desktop application program can be directly installed in conference terminal PC is carried out to remote desktop control, save the trouble of by external notebook computer, PC being carried out remote desktop control.When video conference needs, conference terminal can be opened remote application by menu, gets final product a long-range PC, and it is shared to send to each participant side to realize by two video transmission streams remote desktop.
When the application of more than introducing sends double-current sharing as auxiliary video, user can select to want the picture of demonstration and the display format of picture voluntarily.
By the explanation of embodiment, should be able to more deeply and concrete understanding for technological means and effect of reaching predetermined object and taking the present invention, but appended diagram be only to provide with reference to the use of explanation, be not used for the present invention to be limited.
Claims (10)
1. a content interaction method for video conference, is characterized in that, comprising:
The respectively side of the attending a meeting terminal of video conference is shared auxiliary video in main video showing, and based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video.
2. the content interaction method of video conference according to claim 1, is characterized in that, the respectively side of the attending a meeting terminal of described video conference is shared auxiliary video, specifically comprises:
In the each side's of attending a meeting terminal, there is conference convening side's terminal;
Conference convening side's terminal, by the shared content being provided by the side's of the attending a meeting terminal that need to share content, is synchronized to the respectively side's of attending a meeting terminal; Described shared content comprises: application program picture and remote desktop.
3. the content interaction method of video conference according to claim 2, is characterized in that, when the video conference side of attending a meeting terminal add up to more than three time, described method also comprises:
Respectively the side's of attending a meeting terminal is provided with mark authority in advance; Or,
Conference convening side's terminal is respectively determining chairman's terminal in the side's of attending a meeting terminal, and the application of chairman's terminal based on the each side's of attending a meeting terminal is the each side's of attending a meeting terminal distribution mark authority, or is the each side's of attending a meeting terminal configuration mark authority in advance; Itself also has mark authority chairman's terminal.
4. the content interaction method of video conference according to claim 3, is characterized in that, based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video for the respectively side of the attending a meeting terminal of described video conference, specifically comprises:
The arbitrary side's of attending a meeting terminal with mark authority, based on electronic whiteboard interactive service, is marked in the shared content presenting at auxiliary video, and gives other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks by described mark by conference convening side's terminal synchronizes; Described other side's of attending a meeting terminals are receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
5. the content interaction method of video conference according to claim 2, it is characterized in that, when the video conference side of attending a meeting terminal add up to two time, based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video for the respectively side of the attending a meeting terminal of described video conference, specifically comprises:
Arbitrary side of attending a meeting terminal, based on electronic whiteboard interactive service, is marked in the shared content presenting at auxiliary video, and described mark is sent to another side's of attending a meeting terminal; Described another side's of attending a meeting terminal receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
6. a content exchange system for video conference, is characterized in that, comprising:
The respectively side of the attending a meeting terminal of video conference, for sharing auxiliary video in main video showing, and based on electronic whiteboard interactive service, to sharing content, to carry out mark mutual in auxiliary video.
7. the content exchange system of video conference according to claim 6, is characterized in that, in the each side's of attending a meeting terminal, has conference convening side's terminal;
Conference convening side's terminal, for by the shared content being provided by the side's of the attending a meeting terminal that need to share content, is synchronized to the respectively side's of attending a meeting terminal; Described shared content comprises: application program picture and remote desktop; Application program comprises: blank, office documents, entertainment applications software.
8. the content exchange system of video conference according to claim 7, is characterized in that, when the video conference side of attending a meeting terminal add up to more than three time:
Respectively the side's of attending a meeting terminal is provided with mark authority in advance; Or,
In the each side's of attending a meeting terminal, also there is chairman's terminal; Chairman's terminal, it is determined by conference convening side's terminal, is the each side's of attending a meeting terminal distribution mark authority for the application based on the each side's of attending a meeting terminal, or is the each side's of attending a meeting terminal configuration mark authority in advance; Itself also has mark authority chairman's terminal; Conference convening side's terminal, also for being defined as chairman's terminal according to the request of arbitrary side of attending a meeting terminal.
9. the content exchange system of video conference according to claim 8, is characterized in that, in described system, and based on electronic whiteboard interactive service,
Arbitrary side of attending a meeting terminal, in the time having mark authority, marks in the shared content presenting at auxiliary video, and gives other side's of the attending a meeting terminals except the side's of the attending a meeting terminal making marks by described mark by conference convening side's terminal synchronizes;
Described other side's of attending a meeting terminals, for receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
10. the content exchange system of video conference according to claim 7, is characterized in that, when the video conference side of attending a meeting terminal add up to two time, in described system, based on electronic whiteboard interactive service,
Arbitrary side of attending a meeting terminal, marks for the shared content presenting at auxiliary video, and described mark is sent to another side's of attending a meeting terminal;
Described another side's of attending a meeting terminal, for receiving after described mark, by its Overlapping display in the shared content of auxiliary video.
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