CN101262588A - A method and system for mandatory control over auxiliary stream of video network - Google Patents
A method and system for mandatory control over auxiliary stream of video network Download PDFInfo
- Publication number
- CN101262588A CN101262588A CNA2008101031938A CN200810103193A CN101262588A CN 101262588 A CN101262588 A CN 101262588A CN A2008101031938 A CNA2008101031938 A CN A2008101031938A CN 200810103193 A CN200810103193 A CN 200810103193A CN 101262588 A CN101262588 A CN 101262588A
- Authority
- CN
- China
- Prior art keywords
- mcu
- terminal
- local
- out terminal
- auxiliary stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a method for forcibly controlling the auxiliary stream of a videotext net and a system thereof. The method comprises the following steps: step 1. a local MCU designates an executive termination according to the mark of the executive termination; step 2. the local MCU starts and activates the channel of the auxiliary stream; the local MCU and the executive termination carry out the auxiliary stream operation. The method of the invention can realize the stability of the auxiliary stream operation of the videotext net and improve the experience of attending a meeting for a spokesman.
Description
Technical field
The present invention relates to video signal net field, especially a kind of method and system of mandatory control over auxiliary stream of video network.
Background technology
Video conference mainly is that the mode with voice and image realizes long-range aspectant the interchange, but along with video-signal system use increasingly extensive, people have been not content with and have only seen long-range video image, wish to transmit more information, as the information of using when having a meeting such as chart, data or document, be present in computer and these information are many with data file.Therefore, in many instances, video conference need be set up the collaborative work with data, as long-rangely hold a conference or consultation, long-distance education, telecommuting etc., to strengthen the meeting telepresenc, improve the efficient of video conference.
At first, people realize the transmission of these information by data conferencing T.120, and T.120 serial protocols is the agreement general name that communication, conference management and the data of a whole set of multiple spot data conferencing of formulating of ITU-T are used.T.120 serial protocols is a multi-level protocol suite, comprises essential option and option two parts.Essential option mainly is T.123, T.122, T.124, T.125 wait, and has defined the T.120 basic framework and the core realization mechanism of agreement; T.126 option comprises, T.127 waits, the various application of definition of T .120 agreement: T.126-still image transmits and note; T.127-binary file transmission; T.128-application program is shared.Theoretically, T.120 agreement can satisfy general data conferencing user's requirement, but in actual applications, often unsatisfactory, when particularly T.120 data conferencing mix to use with the video conferencing standard, tend to occur situation about can not meet customer need.Such as: realization complexity T.120; Utilize when T.120 file transfer transmits the picture and text of high resolution, speed is very slow; When sharing jumbo application program, be easy to cause video meeting system paralysis etc.In order to seek a kind of more simple and effective video signal and data collaborative working method, people have proposed double-current technology.In fact double fluid is meant the two video streaming tranmission techniques, allows main frame to send video and content (PowerPoint, browser screen content etc.) simultaneously in a video conference.In July, 2003, ITU (International Telecommunications Union) has ratified H.239 standard, and this standard is supported " AdditionalMedia Channels for is System H.3xx ".Promptly after call is set up the medium connection, H.239 transmit the two-way Media Stream between the terminal at two, these two Media Streams are shared call bandwidth, based on this technology, video user can obtain double-current Video service, can be implemented in to transmit simultaneously in the conference system and show multi-channel video information.
In patent application " control method, MCU, chairman's terminal and video terminal that auxilliary stream sends " (application number 200710121475.6) disclosed technical scheme: send out the application signal by terminal to chairman and ask for token, chairman sends out confirmation signal and gives the application terminal, apply for that then terminal obtains token, carry out the double fluid operation.After the double fluid operation was finished, terminal was sent out the application signal to chairman and is initiatively discharged token, and terminal is just had right of execution no longer after receiving confirmation signal.Terminal order for discharge bridge queen, this terminal and other terminals can be applied for token once more.Although this double-current control system has certain flexibility, but cause meeting-place order disorder easily, especially work as the user under the unfamiliar situation of system, when frequently disorderly pressing remote controller, to directly cause frequent execution token application action, make the system call confusion, it is low to carry out efficient, and has influenced the auxilliary flow operation in the normal double fluid operation.
Under some occasion, for example the spokesman of conference has sequenced order, and the spokesman speaks in turn in proper order according to this, if application such scheme, just need obtain token, increase spokesman's burden, can not provide favorable experience for user as the spokesman by spokesman oneself application.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of method and system of mandatory control over auxiliary stream of video network, its purpose is, increases the stability of auxiliary stream of video network operation, the meeting that promotes the spokesman is experienced.
The invention provides a kind of method of mandatory control over auxiliary stream of video network, comprising:
Step 1, local MCU assigns according to the sign of carrying out terminal and carries out terminal;
Step 2, local MCU opens and activates auxilliary circulation road, and local MCU assists flow operation with the execution terminal.
Step 1 comprises:
Step 21, local MCU assists initializing flow control;
Step 22, local MCU sends token according to the sign of carrying out terminal to carrying out terminal, carries out terminal to assign.
Also comprise step 3, after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message to local MCU and close auxilliary circulation road that local MCU recalls token.
Step 3 comprises:
Step 41 after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message to local MCU and closes auxilliary circulation road;
Step 42, local MCU sends the token release message to carrying out terminal;
Step 43 is carried out terminal and is returned token release response message to local MCU.
Also comprise:
Step 51 is carried out the auxilliary flow operation of terminal and is carried out when not finishing, and local MCU sends the token release message to carrying out terminal;
Step 52 is carried out terminal and is stopped auxilliary flow operation, and returns token release response message to local MCU.
Also comprise step 61 before the step 1, be numbered carrying out terminal and local MCU.
The invention provides a kind of system of mandatory control over auxiliary stream of video network, comprise local MCU and carry out terminal, local MCU also is used for assigning the execution terminal according to the sign of carrying out terminal, opens and activate auxilliary circulation road, and assists flow operation with the execution terminal.
Local MCU is used for sending token according to the sign of terminal to carrying out terminal.
Local MCU also is used for recalling by force token.
That carries out terminal is designated (M * 1 0,000 0000)+T, and wherein M is the number of local MCU, and T is for carrying out the number of terminal, and 1 0,000 0000 is binary number.
The invention provides a kind of method of mandatory control over auxiliary stream of video network, comprising:
Step 111, main control MCU are assigned by local MCU according to the sign of carrying out terminal and are carried out terminal;
Step 112, auxilliary circulation road is opened and activated to main control MCU by local MCU, and main control MCU is assisted flow operation by local MCU with the execution terminal.
Step 111 comprises:
Step 121, main control MCU is assisted initializing flow control by local MCU;
Step 122, main control MCU sends token by local MCU to carrying out terminal according to the sign of carrying out terminal, carries out terminal to assign.
Also comprise step 123, after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message by local MCU to main control MCU and close auxilliary circulation road that main control MCU is recalled token by local MCU.
Step 123 comprises:
Step 141 after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message by local MCU to main control MCU and closes auxilliary circulation road;
Step 142, main control MCU sends the token release message by local MCU to carrying out terminal;
Step 143 is carried out terminal and is returned token release response message by local MCU to main control MCU.
Also comprise:
Step 151 is carried out the auxilliary flow operation of terminal and is carried out when not finishing, and main control MCU sends the token release message by local MCU to carrying out terminal;
Step 152 is carried out terminal and is stopped auxilliary flow operation, and returns token release response message by local MCU to main control MCU.
Also comprise step 161 before the step 111, be numbered carrying out terminal and local MCU.
The present invention also comprises a kind of system of mandatory control over auxiliary stream of video network, comprises main control MCU, local MCU and carries out terminal,
Main control MCU also is used for assigning the execution terminal according to the sign of carrying out terminal by local MCU, opens and activate auxilliary circulation road, and assists flow operation by local MCU with the execution terminal.
Main control MCU is used for sending token according to the sign of terminal to carrying out terminal.
Main control MCU also is used for recalling by force token.
That carries out terminal is designated (M * 1 0,000 0000)+T, and wherein M is the number of local MCU, and T is for carrying out the number of terminal, and 1 0,000 0000 is binary number.
The present invention can realize the stability of auxiliary stream of video network operation, and the meeting that promotes the spokesman is experienced.
Description of drawings
Fig. 1 is auxilliary flow operation flow chart when having only a MCU provided by the invention;
Auxilliary flow operation flow chart when Fig. 2 is two or more MCU cascades provided by the invention.
Embodiment
Among the present invention,, at first, then its part as control information is transmitted in BAS (Bit-rate Allocation Signal) code terminal and multipoint control unit (MCU) numbering for auxilliary flow operation is controlled.Terminal number＜M〉＜T span be the decimal system＜1-224＜1-224.＜M〉be the number of local MCU (MCU that links to each other with this terminal),＜T〉be the number of terminal, the number of MCU and terminal is represented with 8 bits.Behind the joining meeting to terminal,, specify numbering by local MCU for it then by H.242 initialization.
In video meeting system, have only under the situation of a MCU, after numbering finishes, assist stream according to auxilliary flow operation flow process shown in Figure 1 and transmit, comprising:
Step 101, local MCU carries out initialization, execution terminal from auxilliary flow operation to needs that carry out send initial message flowControlRelease Initialize (channelID, bitRate, terminalLabel); The bit rate of bitRate dedicated tunnel, unit is 100bit/s.ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional MediaChannel) is specified in expression.TerminalLabel marking terminal and MCU, terminalLabel=(M * 1 0,000 0000)+T, 1 0,000 0000 is binary number.After terminal received initial message, divided by binary number 1 0,000 0000 gained quotient and the remainder and the numbering of self contrast, if identical, then terminal was carried out initialization according to parameter c hannelID, bitRate with terminalLabel.
Step 102, and local MCU execution token assignment commands presentationToken Allocate (channelID, bitRate, terminalLabel).The bit rate of bitRate dedicated tunnel, unit is 100bit/s.ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.Terminal recognition self is designated as the concrete grammar of carrying out terminal: divided by binary number 1 0,000 0000 gained quotient and the remainder and the numbering of self contrast, if identical, then terminal self is designated as the execution terminal with terminalLabel.
Step 103, local MCU carries out and opens H.245 OpenLogicalChannel (extendedVideoCapability) of logic channel order; Wherein parameter extendedVideoCapability indicates and supports the h239ExtendedVideoCapability expansion, carries out auxilliary flow operation subsequently
Step 104, local MCU logical channels activation command logicalChannelActive (channelID).ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Step 105 is assisted flow operation.Concrete method of operation is: VGA (the VideoGraphic Array of PC output, video drawing array) signal is directly as video source, be input to and carry out on the terminal, this PC desktop signal and activity are looked AV and are sent other-end in the meeting simultaneously to by local MCU.The lantern slide that adopts the method can be apace similar Powerpoint etc. to be made, the Word document of opening, or other forms of PC desktop is sent to all meeting-place in the meeting in real time.
Step 106 after the auxilliary flow operation of execution terminal is finished, is carried out terminal and is sent logic channel deexcitation message logicalChannelInactive (channelID) to local MCU, closes auxilliary circulation road; ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Step 107, local MCU recalls token, local MCU to current execution terminal of occupying token send token release command presentationTokenRelease (terminalLabel, channelID); ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Step 108, execution terminal are returned response presentationTokenResponse, and (acknowledge, terminalLabel channelID) give local MCU, discharge token.What acknowledge represented to accept replys.ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Under the situation of having only a MCU, another one embodiment provided by the invention is briefly described below: in the process of auxilliary flow operation, receive token release command presentationTokenRelease (terminalLabel if carry out terminal, channelID), carry out terminal and stop auxilliary flow operation immediately, and return response presentationTokenResponse (acknowledge, terminalLabel, channelID) give MCU, discharge token.
At the situation of having only a MCU, the invention provides a kind of system of mandatory control over auxiliary stream of video network, comprise local MCU and carry out terminal, local MCU, also be used for assigning the execution terminal, open and activate auxilliary circulation road, and assist flow operation with the execution terminal according to the sign of carrying out terminal.
Local MCU is used for sending token according to the sign of terminal to carrying out terminal.
Local MCU also is used for recalling by force token.
That carries out terminal is designated (M * 1 0,000 0000)+T, and wherein M is the number of local MCU, and T is for carrying out the number of terminal, and 1 0,000 0000 is binary number.
When having two or more MCU cascade in the video meeting system, assist flow operation according to flow process shown in Figure 2:
Step 201, main control MCU (main control MCU is responsible for the communication between the different local MCU) is carried out initialization, execution terminal from auxilliary flow operation to needs that carry out send initial message flowControlReleaseInitialize (channelID, bitRate, terminalLabel); The bit rate of bitRate dedicated tunnel, unit is 100bit/s.ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.TerminalLabel marking terminal and MCU, terminalLabel=(M * 1 0,000 0000)+T, 1 0,000 0000 is binary number.After terminal received initial message, divided by binary number 1 0,000 0000 gained quotient and the remainder and the numbering of self contrast, if identical, then terminal was carried out initialization according to parameter c hannelID, bitRate with terminalLabel.
Step 202, main control MCU by local MCU carry out token assignment commands presentationTokenAllocate (channelID, bitRate, terminalLabel).The bit rate of bitRate dedicated tunnel, unit is 100bit/s.ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.Terminal recognition self is designated as the concrete grammar of carrying out terminal: divided by binary number 1 0,000 0000 gained quotient and the remainder and the numbering of self contrast, if identical, then terminal self is designated as the execution terminal with terminalLabel.
Step 203, main control MCU are carried out by local MCU and are opened the logic channel order H.245
OpenLogicalChannel (extendedVideoCapability); Wherein parameter extendedVideoCapability indicates and supports the h239ExtendedVideoCapability expansion, carries out auxilliary flow operation subsequently
Step 204, main control MCU is by local MCU logical channels activation command logicalChannelActive (channelID).ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Step 205 is assisted flow operation.Concrete method of operation is: VGA (the VideoGraphic Array of PC output, video drawing array) signal is directly as video source, be input to and carry out on the terminal, this PC desktop signal and activity are looked AV and are sent other-end in the meeting simultaneously to by local MCU, main control MCU.The lantern slide that adopts the method can be apace similar Powerpoint etc. to be made, the Word document of opening, or other forms of PC desktop is sent to all meeting-place in the meeting in real time.
Step 206 after the auxilliary flow operation of execution terminal is finished, is carried out terminal and is sent logic channel deexcitation message logicalChannelInactive (channelID) by local MCU to main control MCU, closes auxilliary circulation road; ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Step 207, main control MCU is recalled token by local MCU, to current execution terminal of occupying token send token release command presentationTokenRelease (terminalLabel, channelID); ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional Media Channel) is specified in expression.
Step 208, the execution terminal is returned response presentationTokenResponse by local MCU, and (acknowledge, terminalLabel channelID) give main control MCU, discharge token.What acknowledge represented to accept replys.ChannelID specifies logical channel, and it is 2 that channelID is set in the present embodiment, and the second video channel AMC (Additional MediaChannel) is specified in expression.
When having two or more MCU cascade, another one embodiment provided by the invention is briefly described below: in the process of auxilliary flow operation, receive token release command presentationTokenRelease (terminalLabel if carry out terminal, channelID), carry out terminal and stop auxilliary flow operation immediately, and return response presentationTokenResponse (acknowledge, terminalLabel by local MCU, channelID) give main control MCU, discharge token.
At the situation that has two or more MCU cascades, the invention provides a kind of system of mandatory control over auxiliary stream of video network, comprise main control MCU, local MCU and carry out terminal,
Main control MCU also is used for assigning the execution terminal according to the sign of carrying out terminal by local MCU, opens and activate auxilliary circulation road, and assists flow operation by local MCU with the execution terminal.
Main control MCU is used for sending token according to the sign of terminal to carrying out terminal.
Main control MCU also is used for recalling by force token.
That carries out terminal is designated (M * 1 0,000 0000)+T, and wherein M is the number of local MCU, and T is for carrying out the number of terminal, and 1 0,000 0000 is binary number.
In the above embodiments, in order to reduce the data of terminal iidentification, for terminal and MCU number, also can utilize more existing signs, the IP address of for example local MCU and terminal identifies MCU and terminal.
Those skilled in the art can also carry out various modifications to above content under the condition that does not break away from the definite the spirit and scope of the present invention of claims.Therefore scope of the present invention is not limited in above explanation, but determine by the scope of claims.
Claims (20)
1, a kind of method of mandatory control over auxiliary stream of video network is characterized in that, comprising:
Step 1, local MCU assigns according to the sign of carrying out terminal and carries out terminal;
Step 2, local MCU opens and activates auxilliary circulation road, and local MCU assists flow operation with the execution terminal.
2, the method for mandatory control over auxiliary stream of video network as claimed in claim 1 is characterized in that, step 1 comprises:
Step 21, local MCU assists initializing flow control;
Step 22, local MCU sends token according to the sign of carrying out terminal to carrying out terminal, carries out terminal to assign.
3, the method for mandatory control over auxiliary stream of video network as claimed in claim 2 is characterized in that, also comprises step 3, after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message to local MCU and closes auxilliary circulation road, and local MCU recalls token.
4, the method for mandatory control over auxiliary stream of video network as claimed in claim 3 is characterized in that, step 3 comprises:
Step 41 after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message to local MCU and closes auxilliary circulation road;
Step 42, local MCU sends the token release message to carrying out terminal;
Step 43 is carried out terminal and is returned token release response message to local MCU.
5, the method for mandatory control over auxiliary stream of video network as claimed in claim 2 is characterized in that, also comprises:
Step 51 is carried out the auxilliary flow operation of terminal and is carried out when not finishing, and local MCU sends the token release message to carrying out terminal;
Step 52 is carried out terminal and is stopped auxilliary flow operation, and returns token release response message to local MCU.
6, as the method for any described mandatory control over auxiliary stream of video network of claim 1-5, it is characterized in that, also comprise step 61 before the step 1, be numbered carrying out terminal and local MCU.
7, a kind of system of mandatory control over auxiliary stream of video network comprises local MCU and carries out terminal, it is characterized in that, local MCU also is used for assigning the execution terminal according to the sign of carrying out terminal, opens and activate auxilliary circulation road, and assists flow operation with the execution terminal.
8, the system of mandatory control over auxiliary stream of video network as claimed in claim 7 is characterized in that, local MCU is used for sending token according to the sign of terminal to carrying out terminal.
9, the system of mandatory control over auxiliary stream of video network as claimed in claim 8 is characterized in that, local MCU also is used for recalling by force token.
10, as the system of any described mandatory control over auxiliary stream of video network of claim 7-9, it is characterized in that that carries out terminal is designated (M * 1 000 00000)+T, wherein M is the number of local MCU, T is for carrying out the number of terminal, and 1 0,000 0000 is binary number.
11, a kind of method of mandatory control over auxiliary stream of video network is characterized in that, comprising:
Step 111, main control MCU are assigned by local MCU according to the sign of carrying out terminal and are carried out terminal;
Step 112, auxilliary circulation road is opened and activated to main control MCU by local MCU, and main control MCU is assisted flow operation by local MCU with the execution terminal.
12, the method for mandatory control over auxiliary stream of video network as claimed in claim 11 is characterized in that, step 111 comprises:
Step 121, main control MCU is assisted initializing flow control by local MCU;
Step 122, main control MCU sends token by local MCU to carrying out terminal according to the sign of carrying out terminal, carries out terminal to assign.
13, the method for mandatory control over auxiliary stream of video network as claimed in claim 12, it is characterized in that, also comprise step 123, after the auxilliary flow operation of execution terminal is finished, send deexcitation logic channel message by local MCU to main control MCU and close auxilliary circulation road, main control MCU is recalled token by local MCU.
14, the method for mandatory control over auxiliary stream of video network as claimed in claim 13 is characterized in that, step 123 comprises:
Step 141 after the auxilliary flow operation of execution terminal is finished, sends deexcitation logic channel message by local MCU to main control MCU and closes auxilliary circulation road;
Step 142, main control MCU sends the token release message by local MCU to carrying out terminal;
Step 143 is carried out terminal and is returned token release response message by local MCU to main control MCU.
15, the method for mandatory control over auxiliary stream of video network as claimed in claim 12 is characterized in that, also comprises:
Step 151 is carried out the auxilliary flow operation of terminal and is carried out when not finishing, and main control MCU sends the token release message by local MCU to carrying out terminal;
Step 152 is carried out terminal and is stopped auxilliary flow operation, and returns token release response message by local MCU to main control MCU.
16, as the method for any described mandatory control over auxiliary stream of video network of claim 11-14, it is characterized in that, also comprise step 161 before the step 111, be numbered carrying out terminal and local MCU.
17, a kind of system of mandatory control over auxiliary stream of video network comprises main control MCU, local MCU and carries out terminal, it is characterized in that,
Main control MCU also is used for assigning the execution terminal according to the sign of carrying out terminal by local MCU, opens and activate auxilliary circulation road, and assists flow operation by local MCU with the execution terminal.
18, the system of mandatory control over auxiliary stream of video network as claimed in claim 17 is characterized in that, main control MCU is used for sending token according to the sign of terminal to carrying out terminal.
19, the system of mandatory control over auxiliary stream of video network as claimed in claim 18 is characterized in that, main control MCU also is used for recalling by force token.
20, as the system of any described mandatory control over auxiliary stream of video network of claim 17-19, it is characterized in that that carries out terminal is designated (M * 1 0,000 0000)+T, wherein M is the number of local MCU, T is for carrying out the number of terminal, and 1 0,000 0000 is binary number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101031938A CN101262588B (en) | 2008-04-01 | 2008-04-01 | A method and system for mandatory control over auxiliary stream of video network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101031938A CN101262588B (en) | 2008-04-01 | 2008-04-01 | A method and system for mandatory control over auxiliary stream of video network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101262588A true CN101262588A (en) | 2008-09-10 |
| CN101262588B CN101262588B (en) | 2010-06-02 |
Family
ID=39962752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101031938A Active CN101262588B (en) | 2008-04-01 | 2008-04-01 | A method and system for mandatory control over auxiliary stream of video network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101262588B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089712A1 (en) * | 2007-12-14 | 2009-07-23 | Shenzhen Huawei Communication Technologies Co., Ltd. | Method, system and device for controlling token of assistant steam in multipoint double-streams conference |
| CN102595095A (en) * | 2011-12-09 | 2012-07-18 | 中兴通讯股份有限公司 | Method and device for achieving dual-streaming video conferences |
| WO2014047935A1 (en) * | 2012-09-29 | 2014-04-03 | 华为技术有限公司 | Method for implementing multimedia conference, related device and system |
| WO2014177082A1 (en) * | 2013-08-29 | 2014-11-06 | 中兴通讯股份有限公司 | Video conference video processing method and terminal |
| CN110798457A (en) * | 2019-10-22 | 2020-02-14 | 厦门亿联网络技术股份有限公司 | Auxiliary flow control method based on SIP and conference system |
| CN111866580A (en) * | 2020-06-09 | 2020-10-30 | 厦门亿联网络技术股份有限公司 | H.239-based auxiliary stream negotiation method and terminal equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100583985C (en) * | 2007-04-27 | 2010-01-20 | 华为技术有限公司 | Method, apparatus and system for switching pictures in video service |
| CN101115183B (en) * | 2007-09-06 | 2011-06-01 | 杭州华三通信技术有限公司 | Auxiliary stream transmission control method, MCU, chairman terminal and video terminal |
-
2008
- 2008-04-01 CN CN2008101031938A patent/CN101262588B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089712A1 (en) * | 2007-12-14 | 2009-07-23 | Shenzhen Huawei Communication Technologies Co., Ltd. | Method, system and device for controlling token of assistant steam in multipoint double-streams conference |
| US8819133B2 (en) | 2007-12-14 | 2014-08-26 | Huawei Device Co., Ltd. | Method, system, and device for controlling a token for an auxiliary stream in a multi-point double-stream conference |
| CN102595095A (en) * | 2011-12-09 | 2012-07-18 | 中兴通讯股份有限公司 | Method and device for achieving dual-streaming video conferences |
| WO2014047935A1 (en) * | 2012-09-29 | 2014-04-03 | 华为技术有限公司 | Method for implementing multimedia conference, related device and system |
| WO2014177082A1 (en) * | 2013-08-29 | 2014-11-06 | 中兴通讯股份有限公司 | Video conference video processing method and terminal |
| CN110798457A (en) * | 2019-10-22 | 2020-02-14 | 厦门亿联网络技术股份有限公司 | Auxiliary flow control method based on SIP and conference system |
| CN111866580A (en) * | 2020-06-09 | 2020-10-30 | 厦门亿联网络技术股份有限公司 | H.239-based auxiliary stream negotiation method and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101262588B (en) | 2010-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101262588B (en) | A method and system for mandatory control over auxiliary stream of video network | |
| RU2505852C2 (en) | Methods of managing whiteboard for multimedia conference events | |
| US6810035B1 (en) | Method and arrangement for the parallel utilization of data transmission channels | |
| CN101557496B (en) | Built-in video conference cooperative operation system | |
| EP1077565A1 (en) | Method and system for multimedia conferencing | |
| CN100536475C (en) | Method for consulting multimedia coding and decoding capacity of 3G audio frequency gateway | |
| CN109688365B (en) | Video conference processing method and computer-readable storage medium | |
| CN101098244A (en) | Method and system for media process in multi-point conference | |
| US7792063B2 (en) | Method, apparatus, and computer program product for gatekeeper streaming | |
| CN109412979A (en) | A kind of transmission method of multi-media signal, Transmission system and relevant apparatus | |
| CN101227584A (en) | Method for managing media processor in videoconference system | |
| US20170310932A1 (en) | Method and system for sharing content in videoconferencing | |
| CN102916904A (en) | Power communication dispatching method | |
| WO2015078220A1 (en) | Method and device for media multiplexing negotiation | |
| CN104158673A (en) | Conference mode selection method and server | |
| EP1863256A1 (en) | A media stream bridging device and a media service system | |
| CN110659080B (en) | Page display method and device, electronic equipment and storage medium | |
| CN102111606B (en) | Method and device for accessing to video images in video conference system | |
| JPS647533B2 (en) | ||
| CN101287094A (en) | Method and system for implementing media operation of multimedia meetings | |
| CN1893626B (en) | Method for autonomous sponsoring meeting-gathering by user terminal in inband mode | |
| WO2012146216A1 (en) | Media code stream-transmission method, device and system | |
| CN112788429B (en) | Screen sharing system based on network | |
| US10841357B1 (en) | Using transport layer protocol packet headers to encode application layer attributes in an audiovisual over internet protocol (AVoIP) platform | |
| WO2023274094A1 (en) | Method for processing media stream in video conference and related product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |