CN100403796C - Terminal conference accessing method - Google Patents
Terminal conference accessing method Download PDFInfo
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- CN100403796C CN100403796C CNB200310103067XA CN200310103067A CN100403796C CN 100403796 C CN100403796 C CN 100403796C CN B200310103067X A CNB200310103067X A CN B200310103067XA CN 200310103067 A CN200310103067 A CN 200310103067A CN 100403796 C CN100403796 C CN 100403796C
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Abstract
The present invention discloses a conference enrolling method for terminals, which relates to the technical field of multimedia communication. The method comprises the procedures that cipher keys of a conference place are allocated for each terminal in a conference system; after the number of terminals which enroll the conference reaches the maximum participating number allowed by the conference system, a conference enrolling request of the terminal is temporarily suspended when the conference enrolling request of the terminal is received by a multipoint control unit; the cipher keys of the conference place, which are input by the terminal, are then authenticated, and if the cipher keys of the conference place pass the authentication, the terminal is allowed to enroll the conference by the multipoint control unit after conference place operation is added; if the cipher keys of the conference place do not pass the authentication, the terminal is refused to enroll the conference by the multipoint control unit. Thus, the purpose that terminals can conveniently access the conference system after the number of terminals which enroll the conference reaches the maximum participating number allowed by the conference system is realized.
Description
Technical field
The present invention relates to field of multimedia communication, particularly a kind of terminal enrollment method.
Background technology
Along with the fast development of data communication, the needs of broadband services sharply rise, make multimedia communication application more and more widely.Multimedia conference system is exactly to be based upon on the basis of data communication, utilize existing IP network to carry out both can transmitting realtime graphic information, the communication system of transmitting voice information simultaneously again, and then utilize the local terminal to provide visual multimedia conferencing for people in the different location; Simultaneously, this a plurality of not terminal in same place can be linked into the data communication service that the mode of carrying out mutual video communication in the network has also promoted high speed development simultaneously.
Present multimedia conference system can support the multiple spot access to carry out video communication simultaneously, and referring to Fig. 1, this figure is the structural topology figure of multimedia conference system.Multimedia conference system shown in Figure 1 comprises: can provide unidirectional or bidirectional real-time and can support voice communication and the terminal (Terminal) 10 of video communication, control the multipoint control unit (MCU that carries out audio frequency, video communication between each terminal 10, Multipoint Control Unit) 20 and control hold the Service Management Center (SMC of process with the whole meeting of management, Service Manage Center) 30, wherein carry out multimedia communication by all kinds of wide/narrow band data communication networks 40 between terminal 10 and the MCU 20.
Generally, the multimedia conference system that comprises a plurality of terminals 10 all can be scheduled to a maximum number formulary before holding a meeting, and promptly the maximum of the terminal 10 of this conference system of adding of being allowed of MCU 20 is participated in number.Hold in the process in meeting, the all corresponding meeting-place of each terminal 10, if hold in the process in meeting, the terminal 10 that adds conference system has reached maximum number formulary, when terminal 10 of then follow-up every permission joins in the meeting, all need to increase the operation in a corresponding meeting-place, to allow this terminal 10 can utilize this increase meeting-place to join in the conference system and other-end 10 carries out multimedia conferencing.
With reference to Fig. 2, this figure is that existing each terminal joins first kind of technical scheme flow chart of multimedia conference system.The step that each terminal joins multimedia conference system is as follows:
Wherein in the step 19, the prerequisite that the host ID that has in the call request that MCU sends this terminal carries out authentication is: for each terminal in the multimedia conference system all defines a relevant terminal identification code, to identify the legal identity information of each terminal.Can certainly be each terminal definitions relevant terminal identification code, but when holding each hoc meeting, being identical affiliation key of each terminal distribution, each terminal is before affiliation, have only this affiliation key of earlier correct input, just can be allowed access to conference system.
There is following shortcoming in the process that above-mentioned prior art one each terminal joins in the multimedia conference system: when the terminal number of having joined reaches the maximum number formulary of conference system, when having other-end will be linked in this conference system again, to at first notify corresponding chairman's terminal by terminal, requirement joins in the conference system, after this requirement of chairman's terminal response, by carrying out just finishing alternately in the increase operation of the meeting-place of MCU side, so implementation procedure is more loaded down with trivial details and user's operation is very inconvenient with MCU.
Accordingly, also can call out each terminals joining the conference by utilizing MCU in step 11, with reference to Fig. 2, be the second technical scheme flow chart that existing each terminal joins multimedia conference system.The step that each terminal joins multimedia conference system is as follows:
Step 31, when MCU detects the terminal number of having joined in the active conference system and reaches the maximum number formulary of this conference system, execution in step 33;
Step 33, when other terminal was thought further to insert this conference system, the request of at first should inserting sent to SMC;
Step 35, SMC request MCU calls out this terminal in this conference system, to respond the access request of this terminal;
Step 37, the request of MCU response SMC increases corresponding meeting-place, and calls out this terminal and be linked into this conference system;
Step 39 after this terminal receives the calling of MCU, is carried out the request of permission/refusal affiliation accordingly.
Technique scheme two, there is following shortcoming in the process that each terminal joins in the multimedia conference system: when the terminal number of having joined reaches the maximum number formulary of conference system, when having other-end will be linked in this conference system again, to at first notify corresponding SMC by terminal, requirement joins in the conference system, after SMC responds this requirement, just can finish in the increase operation of the meeting-place of MCU side, so implementation procedure is also more loaded down with trivial details and user's operation is also very inconvenient by request MCU.
Summary of the invention
The objective of the invention is to propose the fairly simple and user of a kind of implementation procedure operation terminal enrollment method comparatively easily.
For realizing purpose of the present invention, a kind of terminal enrollment method is proposed here, described method comprises the steps:
(1) is each terminal distribution meeting-place key in the conference system;
When (2) multipoint control unit receives the affiliation request of terminal, judge whether the current terminal number of having joined reaches the maximum participation number that conference system allows, if reach,, and require described terminal to send the meeting-place key then with the affiliation request temporary suspension of described terminal;
(3) the described requirement of terminal response sends described meeting-place key;
(4) the meeting-place key that described terminal is sent carries out authentication, if authentication is passed through, goes to step (5); If authentication is not passed through, then go to step (6);
(5) increase the meeting-place operation, if increase the meeting-place success, then multipoint control unit allows described terminals joining the conference; If increase the meeting-place failure, then go to step (6);
(6) multipoint control unit is refused described terminals joining the conference.
Accordingly, the present invention also proposes a kind of terminal enrollment method, and described method comprises the steps:
When (71) multipoint control unit receives the affiliation request of terminal, judge that whether the current terminal number of having joined reaches the maximum participation number that conference system allows, if reach, judges then whether the identify label of described terminal is legal, if legal, then go to step (72); If illegal, then go to step (73);
(72) increase the meeting-place operation, if increase the meeting-place success, then multipoint control unit allows described terminal to insert meeting; If increase the meeting failure, then go to step (73);
(73) multipoint control unit is refused described terminals joining the conference.
Simultaneously, the present invention also proposes a kind of terminal enrollment method, and described method comprises the steps:
When (121) multipoint control unit receives the affiliation request of terminal, judge whether the current terminal number of having joined reaches the maximum participation number that conference system allows, if reach, then multipoint control unit temporarily allows described terminals joining the conference;
(122) behind the described terminals joining the conference, multipoint control unit is separated described terminal and other all terminals of having joined, and sends the affiliation request of described terminal to chairman's terminal;
(123) after chairman's terminal receives the affiliation request of described terminal, whether allow described terminal formally to join according to the code stream decision of analyzing described terminal; If, then go to step (124), if not, then go to step (125);
(124) chairman's terminal increases the meeting-place operation, and the notice multipoint control unit is removed the separation to described terminal;
(125) chairman's terminal notice multipoint control unit isolates out described terminal from described conference system.
Beneficial effect of the present invention: because terminal enrollment method of the present invention is held in the process in meeting, when the terminal number of having joined reaches maximum that conference system allows and participates in number, do not need the terminal request of at first will joining to send among chairman's terminal or the SMC, mutual just can finishing in the meeting-place of MCU side by chairman's terminal or SMC and MCU increases operation again, but operate according to the next meeting-place that initiatively increases of the affiliation request of terminal by MCU, or increase the meeting-place operation according to the affiliation request of terminal by MCU request third party such as chairman's terminal or SMC, thereby avoided when the terminal number of having joined reaches maximum that conference system allows and participates in number, when this conference system of terminal incoming call is arranged again, the operation user needs of this terminal and chairman's terminal or SMC communicate and just can finish the step that the meeting-place increases alternately, thereby have simplified the implementation procedure of terminals joining the conference; In end side, the operation user only need import corresponding meeting-place key or not carry out any operation simultaneously, and just can finish corresponding meeting-place increases operation, and is therefore comparatively convenient for user's operation.
Description of drawings
Fig. 1 is the primary structure topological diagram of prior art multimedia conference system;
Fig. 2 is that each terminal joins flow chart in the multimedia conference system in the prior art one;
Fig. 3 is that each terminal joins flow chart in the multimedia conference system in the prior art two;
Fig. 4 is the flow chart of terminal enrollment method first embodiment of the present invention;
Fig. 5 is the part substitute mode of first embodiment;
Fig. 6 also is the part substitute mode of first embodiment;
Fig. 7 is the flow chart of second embodiment of the invention terminal enrollment method;
Fig. 8 is a terminal enrollment method flow chart of the present invention;
Fig. 9 is a terminal enrollment method flow chart of the present invention.
Embodiment
When holding a multimedia conferencing, Service Management Center SMC can give a corresponding identify label to each terminal in this multimedia conference system, this identify label can be the host ID of each terminal, promptly identifies the code word of each terminal identity information; Also can be before holding a meeting, each terminal of affiliation key notification of this time meeting, each terminal has only this affiliation key of correct input before affiliation, just can be allowed to enter into this conference system.
Generally, before holding a meeting, SMC can stipulate the maximum participation number of the terminal access that this conference system allows, the maximum number formulary of i.e. this time meeting, if the affiliation terminal number of conference system has reached the maximum number formulary of regulation, when inserting other-end once more, will meeting-place of corresponding increase, so that the meeting-place of this terminal by this increase is linked into conference system.The present invention is just for solving in the conference system of holding, reach the maximum number formulary of conference system regulation when the terminal number of having joined after, can be linked into more simply and easily in this conference system for making follow-up terminal, and propose this terminal enrollment method.
With reference to Fig. 4, this figure is the flow chart of terminal enrollment method first embodiment of the present invention.Among this first embodiment, host ID is adopted in the identify label of terminal, i.e. the code word of each terminal identity information of utilization sign is distinguished the legal identity of each terminal; In first embodiment, for making terminal when the affiliation terminal number of conference system has reached the maximum number formulary of described conference system, can control follow-up terminal and insert meeting, at first before meeting is held, be each terminal distribution meeting-place key, on the basis of this operational hypothesis, carry out following operation:
Step 140, the affiliation request of this terminal of MCU temporary suspension, the hang-up here refer to lie over the affiliation request of this terminal;
By above-mentioned process, just can be implemented in the active conference system, when the terminal number of having joined reaches the maximum number formulary of this conference system, access once more to follow-up terminal is effectively controlled, and terminal need be before not inserting meeting, earlier with as chairman's terminal, third parties such as SMC communicate intercommunication, by as chairman's terminal, third party's terminal request MCU such as SMC increase the meeting-place, chairman's terminal then, third parties such as SMC will increase the success or failure result notification in meeting-place again and give terminal, terminal is again according to the success or failure result in the increase meeting-place that receives, and inserts conference system or do not insert the operation of conference system.The user who adopts end side in addition is when conference system reaches maximum number formulary, when also needing to add meeting, only need the correct meeting-place key of input, just can make MCU increase the meeting-place operation automatically, terminal is after MCU increases the meeting-place success, just can join in the conference system, thereby make this terminal enrollment method seem more simple and convenient in terms of existing technologies.
Wherein among first embodiment of Fig. 4, the identify label of each terminal is except that adopting host ID to carry out the identify label, can also replace the form that adopts the affiliation key, promptly before holding a meeting, be an affiliation of each terminal reallocation key, terminal has only this affiliation key of correct input could represent the legal identity of self, join in the conference system, this affiliation key can be same key for each terminal, also can be different keys.On the basis of Fig. 1 first embodiment, step 120 to step 130 can also further be replaced.
With reference to Fig. 5, be the part substitute mode of first embodiment.In Fig. 4, when the terminal number of joining that step 110 is judged the active conference system at MCU does not reach the maximum number formulary of this conference system, and then carry out the step 260 of this Fig. 5, step 270 and step 280:
Meanwhile, with reference to Fig. 6, be the step that also need comprise between the step 110 of first embodiment among Fig. 4 and the step 140.In Fig. 4, when the terminal number of joining that step 110 is judged the active conference system at MCU has reached the maximum number formulary of this conference system, and then carry out the step 310 of this Fig. 6, step 320 and step 330:
By go to replace the corresponding steps among Fig. 4 simultaneously with the substitute mode of Fig. 5 and Fig. 6, can realize terminal joining in the conference system by affiliation key and two secret key safeties of meeting-place key.
First embodiment among Fig. 4 wherein, be to finish the operation that increases the meeting-place according to the affiliation request of terminal by MCU, in actual process, MCU can also further send to third party as chairman's terminal or SMC to the affiliation request of terminal, is finished the operation that increases the meeting-place by the third party.
With reference to Fig. 7, this figure is second embodiment of terminal enrollment method of the present invention.After the first embodiment execution of step 160 in Fig. 4, and then the later step of step 340 in the execution graph 7;
Certainly the above-mentioned third party SMC that also is not limited to here to be lifted or the example of chairman's terminal can also can and can have entity in the multimedia conference system that increases the meeting-place function with the MCU intercommunication for main MCU or other.
The present invention also proposes another terminal enrollment method, have at multimedia conference system under the situation of chairman's terminal, MCU under normal circumstances, (the maximum number formulary that has arrived conference system and allowed as the affiliation meeting number of fields of conference system again during the affiliation request of processing terminal, or this terminal of nothing in the terminal list, the situation that causes failed authentication), MCU can temporarily first receiving terminal affiliation request.But successfully go into after the meeting in this terminal, temporarily the other-end in this terminal and the whole conference system is kept apart, report chairman's terminal simultaneously, the message that has terminal to join.After Chair site receives the affiliation message of terminal to report, the code stream of this terminal of requirement analysis.As by conversing, after analyzing code stream, whether allow this terminal formally to join by chairman terminal use decision through conversation (or watching image) with this terminal.If allow, then the MCU cancellation is to the separation of this terminal, and this terminal of other-end in the notification of meetings system is joined simultaneously, and this terminal is formally joined.If refusal then isolates out this terminal by MCU from conference system.
With reference to Fig. 8, this figure is the flow chart of terminal enrollment method of the present invention.When the affiliation request that receives certain terminal, the terminal number of joining in the conference system has reached the maximum number formulary of this conference system, or obtain this terminal not in the terminal list of this conference system by the identify label of verifying this terminal, further carry out the following step:
By above-mentioned terminal enrollment method, can be each terminal distribution meeting-place key, but determine whether allowing terminal to insert meeting by the code stream that utilizes chairman's terminal analysis terminal, but equally need be by the access procedure of MCU control terminal.
The present invention also proposes a kind of terminal enrollment method, when the affiliation request that receives certain terminal, the terminal number of joining in the conference system has reached the maximum number formulary of this conference system, MCU only carries out authentication to the identify label (host ID or affiliation key) of terminal, as long as authentication is passed through, MCU no longer carries out the authentication of meeting-place key, directly initiatively increases the meeting-place, allows this terminal to insert conference system.
With reference to Fig. 9, this figure is a terminal enrollment method flow chart of the present invention.When the affiliation request that receives certain terminal, the terminal number of joining in the conference system has reached the maximum number formulary of this conference system, further carries out following operation and finishes the increase meeting-place, inserts the operation of this terminal;
Step 500 after the terminal number of joining in conference system has reached the maximum number formulary of this conference system, when MCU receives the affiliation request of terminal again, forwards step 510 to;
The affiliation request that has identify label that MCU also can further send terminal in this method sends among the third party as SMC or chairman's terminal, judge by third parties such as SMC or chairman's terminals whether the identify label of terminal is correct, corresponding increasing/do not increase the operation in meeting-place, and then reinform MCU permission/refusal terminals joining the conference.
Above-mentioned no matter which kind of terminal access method, processing procedure all relates to the operation of MCU, wherein can be by MCU directly according to the affiliation request of terminal, directly increase corresponding meeting-place, also can ask the third party to increase corresponding meeting-place by MCU; Wherein the affiliation request of terminal can be carried the meeting-place key, also can not carry the meeting-place key, can also come the access of control terminal by the code stream of analysing terminal under the situation of not carrying the meeting-place key.
The above only is a preferred implementation of the present invention, for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, and these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. a terminal enrollment method is characterized in that, described method comprises the steps:
(1) is each terminal distribution meeting-place key in the conference system;
When (2) multipoint control unit receives the affiliation request of terminal, judge whether the current terminal number of having joined reaches the maximum participation number that conference system allows, if reach,, and require described terminal to send the meeting-place key then with the affiliation request temporary suspension of described terminal;
(3) the described requirement of terminal response sends described meeting-place key;
(4) the meeting-place key that described terminal is sent carries out authentication, if authentication is passed through, goes to step (5); If authentication is not passed through, then go to step (6);
(5) increase the meeting-place operation, if increase the meeting-place success, then multipoint control unit allows described terminals joining the conference; If increase the meeting-place failure, then go to step (6);
(6) multipoint control unit is refused described terminals joining the conference.
2. terminal enrollment method according to claim 1 is characterized in that, described step (2) if in judged result be not reach, then carry out following steps:
(21) multipoint control unit judges whether the identify label of described terminal belongs to the terminal list of described conference system, if go to step (22); If not,, and require described terminal to send described meeting-place key, go to step (3) more then with the affiliation request temporary suspension of described terminal;
(22) multipoint control unit judges whether the identify label of described terminal is legal, if legal, multipoint control unit allows described terminals joining the conference; If illegal, then go to step (6).
3. terminal enrollment method according to claim 2 is characterized in that, the affiliation key the when identify label of described terminal is the host ID of each terminal self or each terminals joining the conference.
4. terminal enrollment method according to claim 2 is characterized in that,
By the affiliation request temporary suspension of multipoint control unit, and require described terminal to send the meeting-place key in the described step (2) with described terminal;
The meeting-place key of by multipoint control unit described terminal being sent in the described step (4) carries out authentication;
Increase the meeting-place operation by multipoint control unit in the described step (5).
5. terminal enrollment method according to claim 1 is characterized in that,
By the affiliation request temporary suspension of multipoint control unit, and require described terminal to send the meeting-place key in the described step (2) with described terminal;
The meeting-place key of by multipoint control unit request third party described terminal being sent in the described step (4) carries out authentication;
Increase the meeting-place operation by multipoint control unit request third party in the described step (5).
6. terminal enrollment method according to claim 5 is characterized in that, by multipoint control unit request third party the meeting-place key is carried out authentication in described step (4) or (5), and the operation in corresponding increase meeting-place comprises the steps:
The affiliation request that has the meeting-place key that multipoint control unit is sent terminal is transmitted to Service Management Center or chairman's terminal;
The meeting-place key that Service Management Center or chairman's end-on are received carries out authentication, if authentication is passed through, then increases the meeting-place and generates the result that increases the meeting-place success; If authentication is not passed through, then do not increase the meeting-place and generate the result that increases the meeting-place failure;
The result that Service Management Center or chairman's terminal will increase meeting-place success/failure feeds back to multipoint control unit, and multipoint control unit allows/refuse described terminals joining the conference according to the result that increases meeting-place success/failure.
7. a terminal enrollment method is characterized in that, described method comprises the steps:
When (71) multipoint control unit receives the affiliation request of terminal, judge that whether the current terminal number of having joined reaches the maximum participation number that conference system allows, if reach, judges then whether the identify label of described terminal is legal, if legal, then go to step (72); If illegal, then go to step (73);
(72) increase the meeting-place operation, if increase the meeting-place success, then multipoint control unit allows described terminal to insert meeting; If increase the meeting failure, then go to step (73);
(73) multipoint control unit is refused described terminals joining the conference.
8. terminal enrollment method according to claim 7 is characterized in that, the affiliation key the when identify label of described terminal is the host ID of each terminal self or each terminals joining the conference.
9. terminal enrollment method according to claim 7 is characterized in that,
Judge by multipoint control unit whether the identify label of described terminal is legal in the described step (71);
Increase the meeting-place operation by multipoint control unit in the described step (72).
10. terminal enrollment method according to claim 7 is characterized in that,
Judge by multipoint control unit request third party whether the identify label of described terminal is legal in the described step (71);
Increase the meeting-place operation by multipoint control unit request third party in the described step (72).
11. terminal enrollment method according to claim 10, it is characterized in that, whether the identify label of judging described terminal by described multipoint control unit request third party in described step (71) or (72) is legal, and the operation in corresponding increase meeting-place comprises the steps:
The affiliation request that has self identify label that multipoint control unit is sent terminal is transmitted to Service Management Center or chairman's terminal;
The identify label of the described terminal that Service Management Center or chairman's end-on are received is judged, if legal, increase the meeting-place and generates the result that increases the meeting-place success; If illegal, then do not increase the meeting-place and generate the result that increases the meeting-place failure;
The result that Service Management Center or chairman's terminal will increase meeting-place success/failure feeds back to multipoint control unit, and multipoint control unit allows/refuse described terminals joining the conference according to the result that increases meeting-place success/failure.
12. a terminal enrollment method is characterized in that described method comprises the steps:
When (121) multipoint control unit receives the affiliation request of terminal, judge whether the current terminal number of having joined reaches the maximum participation number that conference system allows, if reach, then multipoint control unit temporarily allows described terminals joining the conference;
(122) behind the described terminals joining the conference, multipoint control unit is separated described terminal and other all terminals of having joined, and sends the affiliation request of described terminal to chairman's terminal;
(123) after chairman's terminal receives the affiliation request of described terminal, whether allow described terminal formally to join according to the code stream decision of analyzing described terminal; If, then go to step (124), if not, then go to step (125);
(124) chairman's terminal increases the meeting-place operation, and the notice multipoint control unit is removed the separation to described terminal;
(125) chairman's terminal notice multipoint control unit isolates out described terminal from described conference system.
13. terminal enrollment method according to claim 12 is characterized in that, described step further comprises in (123):
(1231) after chairman's terminal receives the affiliation request of described terminal, send code stream by the described terminal of multipoint control unit request;
(1232) described terminal sends to described chairman's terminal with the code stream of self by multipoint control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310103067XA CN100403796C (en) | 2003-10-30 | 2003-10-30 | Terminal conference accessing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310103067XA CN100403796C (en) | 2003-10-30 | 2003-10-30 | Terminal conference accessing method |
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| CN1612609A CN1612609A (en) | 2005-05-04 |
| CN100403796C true CN100403796C (en) | 2008-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200310103067XA Expired - Fee Related CN100403796C (en) | 2003-10-30 | 2003-10-30 | Terminal conference accessing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011011937A1 (en) * | 2009-07-29 | 2011-02-03 | 中兴通讯股份有限公司 | System and method for joining multimedia conference by authentication |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973721B (en) * | 2013-01-25 | 2018-07-31 | 华为技术有限公司 | Multimedia conferencing mothed of participating, control method, transmission method, apparatus and system |
| CN103124342B (en) * | 2013-01-28 | 2017-06-27 | 南京中兴软件有限责任公司 | The method and multipoint control unit being monitored to the state of video conference terminal |
| CN108206926A (en) * | 2016-12-20 | 2018-06-26 | 北京视联动力国际信息技术有限公司 | A kind of method and device of conference management client and exterior terminal state synchronized |
| CN113132315B (en) * | 2019-12-31 | 2023-07-11 | 中国移动通信集团山西有限公司 | Online conference authentication method, device, equipment, medium and system |
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| WO1996008110A1 (en) * | 1994-09-07 | 1996-03-14 | Rsi Systems, Inc. | Peripheral video conferencing system |
| JP2003167856A (en) * | 2001-11-30 | 2003-06-13 | Pioneer Electronic Corp | Network conference system, authentication method thereof, and terminal for network conference system, authentication system thereof |
| JP2003244130A (en) * | 2002-02-14 | 2003-08-29 | Canon Inc | Conference system |
| US20030171938A1 (en) * | 2000-05-19 | 2003-09-11 | Sony Corporation | Network conferencing system, attendance authentication method and presentation method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1996008110A1 (en) * | 1994-09-07 | 1996-03-14 | Rsi Systems, Inc. | Peripheral video conferencing system |
| US20030171938A1 (en) * | 2000-05-19 | 2003-09-11 | Sony Corporation | Network conferencing system, attendance authentication method and presentation method |
| JP2003167856A (en) * | 2001-11-30 | 2003-06-13 | Pioneer Electronic Corp | Network conference system, authentication method thereof, and terminal for network conference system, authentication system thereof |
| JP2003244130A (en) * | 2002-02-14 | 2003-08-29 | Canon Inc | Conference system |
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| WO2011011937A1 (en) * | 2009-07-29 | 2011-02-03 | 中兴通讯股份有限公司 | System and method for joining multimedia conference by authentication |
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| CN1612609A (en) | 2005-05-04 |
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