CN103843323A

CN103843323A - Method for implementing multimedia conference, related device and system

Info

Publication number: CN103843323A
Application number: CN201280002310.6A
Authority: CN
Inventors: 慕正锋; 周日明
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2014-06-04
Anticipated expiration: 2032-09-29
Also published as: WO2014047935A1; CN103843323B

Abstract

Disclosed are a method for implementing a multimedia conference, and a related device and system. The method comprises: establishing an auxiliary stream channel with a hardware conference system; when network sharing data is received from a network conference system, converting the network sharing data into standard sharing data and sending the standard sharing data to the hardware conference system through the auxiliary stream channel, wherein the format of the standard sharing data is a video format supported by the hardware conference system; and when standard sharing data is received from the hardware conference system through the auxiliary stream channel, sending the standard sharing data to the network conference system. A conference user only needs to operate a conference terminal of the user to implement data sharing between a network conference system and a hardware conference system without causing extra operational burden to the conference user. Both the network conference system and the hardware conference system perform original operations in a conference, thereby simply and conveniently implementing a cross-system conference.

Description

Method for implementing multimedia conference, related device and system

A kind of multimedia conference realization method, relevant device and systems technology field

The present invention relates to multimedia conferencing field, more particularly to a kind of multimedia conference realization method, relevant device and system.Background technology

Current multimedia conference system includes netmeeting and with MCU (multi control unit, multipoint control unit）Based on hardware conferencing system（Such as the true conference system of intelligence）Netmeeting and hardware conferencing system can provide data sharing function in system, that is, a side participant terminal can include the shared data of the types such as document sharing data, screen sharing data, meeting blank shared data to the participant of other in same system terminal transmission.

In hardware conferencing system, the shared data of transmission is the shared data encoded using video format., it is necessary to set up the VP terminals of each participant when realizing data sharing in hardware conferencing system（View Point Terminal, video terminal）With MCU (multi control unit, multipoint control unit）Between auxiliary video stream passage, the VP terminals of the side of shared data one are by VGA (the Video Graphics Array, video graphics array of computer screen）Data are converted to after the shared data of video format and to be sent to MCU by the secondary flow passage between MCU, then by the secondary flow passage between other VP terminals the shared data are broadcast into other VP terminals by MCU.

In netmeeting, the network share data of transmission are frequently not to be encoded using video format, are usually encoded using customized video format, e.g., shared for blank, and the blank performed is recorded using customized form and is operated（Such as record the peration data that laser pen is rule in some position）.The client of the side of shared data one realizes capture to shared data and coding obtains network share data, and gives other clients by network share data broadcasting by the web server of netmeeting.

Based on above two conference system, if necessary to which hardware conferencing system and netmeeting is integrated, then the problem of needing to solve how to realize network share data interchange in the standard shared data and netmeeting in hardware conferencing system.

In the prior art, during by hardware conferencing system and integrated netmeeting, it is separately provided in hardware conferencing system in one and controls computer, controlled in this and the soft client of netmeeting is installed in computer and network web is connected to, while being connected to each VP terminals in hardware conferencing system by USB interface. Participant user controls computer after the preset conferences of two conference systems and starting meeting, in this and adds netmeeting by the soft client of netmeeting first.When certain user needs to share corresponding shared data in hardware conferencing system, the user needs to open shared data using mounted soft client on the middle control computer, middle control computer sends the server of corresponding data to netmeeting, and to the conference terminal of netmeeting corresponding data is forwarded from the server of netmeeting；Simultaneously, the on-screen data of the middle control computer will be transmitted to the corresponding VP terminals of the user by USB interface, VGA stream compressions are changed to H.264 standard video stream and issue the MCU of hardware conferencing system by correspondence VP terminals, and the VP terminals of other hardware conferencing systems are sent to by MCU.First, prior art may only realize hardware conferencing system to netmeeting shared data, i.e., unidirectional shared, and the user of netmeeting then can not be by its conference terminal to hardware conferencing system shared data.

Second, the user of hardware conferencing system is when needing to share corresponding shared data, it is necessary to be operated into special middle control computer so that user operates numerous Suo, and extra operating burden is brought to user, and meeting is experienced poor.The content of the invention

The embodiments of the invention provide a kind of multimedia conference realization method, relevant device and system, can between hardware conferencing system and netmeeting intercommunication shared data, and avoid bringing extra operating burden to user.

In a first aspect, the embodiments of the invention provide a kind of multimedia conference realization method, including：The secondary flow passage set up between hardware conferencing system；

When receiving the network share data of netmeeting, the network share data are converted into standard shared data, and the standard shared data is sent to the hardware conferencing system by the secondary flow passage, the form of the standard shared data is the video format that the hardware conferencing system is supported；

When receiving the standard shared data of hardware conferencing system in the secondary flow passage, determine that the netmeeting is supported to send the standard shared data to netmeeting during the video format of the standard shared data.

With reference in a first aspect, in the first possible implementation, the secondary flow passage between the foundation and hardware conferencing system includes： When receiving the secondary flow authority application information of netmeeting, secondary flow transmission authority request is sent to the multipoint control unit MCU of hardware conferencing system；

Receive the multipoint control unit MCU and respond the secondary flow address that the secondary flow transmission authority request is returned；Secondary flow passage to the multipoint control unit MCU is set up according to the secondary flow address.

With reference in a first aspect, in second of possible implementation, the secondary flow passage between the foundation and hardware conferencing system includes：

Receive the secondary flow address that the multipoint control unit MCU of hardware conferencing system is sent；

Secondary flow passage to the multipoint control unit MCU is set up according to the secondary flow address.

With reference to second of possible implementation of the first possible implementation or first aspect of first aspect, in the third possible implementation, set up described according to the secondary flow address to after the secondary flow passage of the multipoint control unit MCU, in addition to：

The announcement information set up of secondary flow passage is sent to the network web server of netmeeting, to notify the network web server transmission network shared data.

With reference to the third possible implementation of second possible implementation or first aspect of the first possible implementation or first aspect of first aspect or first aspect, in the 4th kind of possible implementation, it is described the standard shared data is sent to hardware conferencing system by the secondary flow passage that pre-establishes before, in addition to：

Send token request to obtain the authority of transmission standard shared data to the multipoint control unit MCU of the hardware conferencing system, and the token that the multipoint control unit MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

It is described the network share data are converted into standard shared data to include with reference in a first aspect, in the 5th kind of possible implementation：

Parse the network share data generation image；

The video format supported using the hardware conferencing system is carried out coding to the image of generation and generates the standard shared data.

With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, the shared data generation image of the parsing netmeeting generates image specifically, parsing the network share data by the client of the built-in netmeeting.

Second aspect, the embodiments of the invention provide a kind of multimedia conference realization method, including：In the network share data that the conference terminal for receiving netmeeting is sent, to secondary flow transition net Close and send the network share data, so that the standard shared data that the network share data are converted to standard shared data and are converted to by the secondary flow passage between hardware conferencing system pre-established to hardware conferencing system transmission by the secondary flow transfer gateway, the form of the standard shared data is the video format that the hardware conferencing system is supported；

Receiving when coming from the standard shared data of hardware conferencing system of secondary flow transfer gateway transmission, the standard shared data of the hardware conferencing system is broadcasted to the conference terminal of netmeeting, and the standard shared data of the hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

With reference to second aspect, in the first possible implementation, the secondary flow passage pre-established sets up process, including：

Secondary flow authority application information is sent to secondary flow transfer gateway, so that the secondary flow transfer gateway asks secondary flow address according to the secondary flow authority application information to the multipoint control unit MCU in hardware conferencing system and sets up the secondary flow passage to the multipoint control unit MCU according to secondary flow address；

Receive the secondary flow transfer gateway and respond the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up.

With reference to second aspect, in second of possible implementation, after the announcement information that the secondary flow passage for receiving the secondary flow transfer gateway response secondary flow authority application information return has been set up, in addition to：The conference terminal of netmeeting is notified to create the secondary flow data display window of the standard shared data sent for viewing hardware conference system.

The third aspect, the embodiments of the invention provide a kind of multimedia conference realization method, including：In the standard shared data of conference terminal in receiving hardware conferencing system, the standard shared data is sent to secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；

When receiving the standard shared data of the secondary flow transfer gateway sent by the secondary flow passage between secondary flow transfer gateway pre-established, conference terminal into hardware conferencing system broadcasts the standard shared data of the secondary flow transfer gateway, wherein, the standard shared data of the secondary flow transfer gateway is that the secondary flow transfer gateway is converted to the network share data of netmeeting.

With reference to the third aspect, in the first possible implementation, the secondary flow passage between secondary flow transfer gateway is pre-established, including：

Secondary flow address is distributed for the secondary flow transfer gateway, and the secondary flow address of distribution is sent to secondary flow conversion Gateway, so that the secondary flow transfer gateway sets up secondary flow passage according to the secondary flow address.

In the first possible implementation with reference to the third aspect, second of possible implementation described for secondary flow transfer gateway distribution secondary flow address, and the secondary flow address is sent to before the secondary flow transfer gateway, in addition to：Receive the secondary flow transmission authority request that secondary flow transfer gateway is sent；

It is described to distribute secondary flow address for the secondary flow transfer gateway, and the secondary flow address is sent to the secondary flow transfer gateway, including：It is secondary flow transfer gateway distribution secondary flow address to respond the secondary flow transmission authority request, and the secondary flow address is sent into the secondary flow transfer gateway.

Fourth aspect, the embodiments of the invention provide the secondary flow transfer gateway in a kind of multimedia conference system, including：

Path setup module, for setting up the secondary flow passage between hardware conferencing system；

Receiving module, the network share data for receiving netmeeting, and for the standard shared data for the secondary flow channel reception hardware conferencing system set up by the path setup module；

Modular converter, for when the receiving module receives network share data, the network share data to be converted into standard shared data, the form of the standard shared data is the video format that the hardware conferencing system is supported；

Sending module, for the secondary flow passage set up by the path setup module standard shared data that the modular converter is converted to is sent to hardware conferencing system, and for it is determined that the netmeeting sends the standard shared data to netmeeting when supporting the video format for the standard shared data that the receiving module receives.

With reference to fourth aspect, in the first possible implementation, the path setup module includes：Application unit, for when receiving the secondary flow authority application information of netmeeting, secondary flow transmission authority request to be sent to the multipoint control unit MCU of hardware conferencing system；

Receiving unit, the secondary flow address that the secondary flow transmission authority request is returned is responded for receiving the multipoint control unit MCU；

Unit is set up, the secondary flow passage to the multipoint control unit MCU is set up in the secondary flow address for being received according to the receiving unit.

With reference to fourth aspect, in second of possible implementation, the path setup module includes：Receiving unit, for receiving the secondary flow address that the multipoint control unit MCU of hardware conferencing system is sent；Unit is set up, the secondary flow passage to the multipoint control unit MCU is set up in the secondary flow address for being received according to the receiving unit. With reference to second of possible implementation of the first possible implementation or fourth aspect of fourth aspect, in the third possible implementation, the sending module is additionally operable to send the announcement information set up of secondary flow passage to the web server of netmeeting, to notify the web server transmission network shared data.

With reference to the third possible implementation of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, in the 4th kind of possible implementation, in addition to：

Token application module, asked for sending token to the multipoint control unit MCU of the hardware conferencing system to obtain the authority of transmission standard shared data, and the token that the multipoint control unit MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

With reference to fourth aspect, in the 5th kind of possible implementation, the modular converter generates image specifically for parsing the network share data, and the video format supported using the hardware conferencing system is carried out coding to the image of generation and generates the standard shared data.

In the 5th kind of possible implementation with reference to fourth aspect, in the 6th kind of possible implementation, the shared data generation image that the modular converter parses the netmeeting parses the network share data generation image specifically by the client of the built-in netmeeting.

5th aspect, the embodiment of the present invention additionally provides the server in a kind of netmeeting, including：Processing module, for when receiving the network share data of conference terminal transmission of netmeeting, the network share data are sent to the secondary flow transfer gateway, so that the standard shared data that the network share data are converted to standard shared data and are converted to standard shared data to the transmission of hardware conferencing system by the secondary flow passage between hardware conferencing system pre-established by the secondary flow transfer gateway, the form of the standard shared data is the video format that the hardware conferencing system is supported；

Receiving when coming from the standard shared data of hardware conferencing system of the secondary flow transfer gateway transmission, the standard shared data of the hardware conferencing system is broadcasted to the conference terminal of netmeeting, and the standard shared data of the hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

With reference to the 5th aspect, in the first possible implementation, in addition to：

Apply for module, for sending secondary flow authority application information to secondary flow transfer gateway, so that the secondary flow transfer gateway is applied according to the secondary flow authority application information to the multipoint control unit MCU of hardware conferencing system Secondary flow address is to set up secondary flow transfer gateway to the secondary flow passage of the multipoint control unit MCU in hardware conferencing system；

Receiving module, the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up is responded for receiving the secondary flow transfer gateway.

With reference to the 5th aspect, in second of possible implementation, in addition to：

Notification module, for after the receiving module receives the announcement information that secondary flow passage has been set up, notifying the conference terminal of netmeeting to create the secondary flow data display window of the standard shared data sent for viewing hardware conference system.

6th aspect, the embodiment of the present invention additionally provides the multipoint control unit in a kind of hardware conferencing system, including：

Processing module, for in the standard shared data of conference terminal in receiving hardware conferencing system, the standard shared data is sent to the secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；When receiving the standard shared data of the secondary flow transfer gateway sent by the secondary flow passage between secondary flow transfer gateway pre-established, conference terminal into hardware conferencing system broadcasts the standard shared data of the secondary flow transfer gateway, wherein, the standard shared data of the secondary flow transfer gateway is that the secondary flow transfer gateway is converted to the network share data of netmeeting.

With reference to the 6th aspect, in the first possible implementation, in addition to：

Distribute module, for distributing secondary flow address for the secondary flow transfer gateway, and is sent to the secondary flow transfer gateway by the secondary flow address, to set up the secondary flow passage between the secondary flow transfer gateway.

With reference to the first possible implementation of the 6th aspect, in second of implementation, when the distribute module in the secondary flow for receiving the transmission of secondary flow transfer gateway specifically for transmitting authority request, it is secondary flow transfer gateway distribution secondary flow address to respond the secondary flow transmission authority request, and the secondary flow address is sent into the secondary flow transfer gateway.

7th aspect, the embodiment of the present invention additionally provides a kind of multimedia conferencing and realizes system, web server and at least one web conference terminal including netmeeting, the multipoint control unit MCU of hardware conferencing system and at least one VP terminal, and secondary flow transfer gateway, wherein, the secondary flow transfer gateway is connected with the web server, and the secondary flow transfer gateway establishes the secondary flow passage of the multipoint control unit MCU；

The web server, for receiving the network share number that at least one described web conference terminal is sent According to, and send the network share data to the secondary flow transfer gateway；

The secondary flow transfer gateway, for when receiving the network share data of web server transmission, the network share data are converted into standard shared data, and the standard shared data being converted to is sent to the MCU by the secondary flow passage, the form of the standard shared data is the video format that the hardware conferencing system is supported；

The MCU, for sending the standard shared data that the secondary flow transfer gateway is converted to at least one described VP terminal；

The MCU, is additionally operable to receive the standard shared data that at least one described VP terminal is sent, and sends to the secondary flow transfer gateway standard shared data of at least one VP terminal；

The secondary flow transfer gateway, it is additionally operable to when receiving the standard shared data that the MCU is sent in the secondary flow passage pre-established, sends the MCU standard shared datas sent to the web server during video format for determining the standard shared data that the netmeeting supports the MCU to send；The web server, is additionally operable to broadcast the standard shared data that the MCU is sent at least one described web conference terminal.

With reference to the 7th aspect, in the first possible implementation, the secondary flow transfer gateway is additionally operable to send token request to obtain the authority of transmission standard shared data to the multipoint control unit MCU of the hardware conferencing system, and the token that the multipoint control unit MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

In the first possible implementation with reference to the 7th aspect, in second of possible mode, the network share data are converted to standard shared data and carry out coding particular by the network share data generation image, the video format supported using the hardware conferencing system is parsed to the image of generation and generate the standard shared data by the secondary flow transfer gateway.

In second of possible implementation with reference to the 7th aspect, in the third possible implementation, the shared data generation image that the secondary flow transfer gateway parses the netmeeting parses the network share data generation image specifically by the client of the built-in netmeeting.

Implement the embodiment of the present invention, have the advantages that：

The embodiment of the present invention can realize the intercommunication shared data between netmeeting and hardware conferencing system.Each conference users need to only operate the conference terminal where it that shared data can be achieved in the shared of netmeeting and hardware conferencing system, and extra operating burden can't be brought to conference users.Netmeeting and hardware conferencing system all carry out meeting according to each original operation, and cylinder list easily realizes cross-system Meeting.Brief description of the drawings

Fig. 1 is a kind of schematic flow sheet of multimedia conference realization method of the embodiment of the present invention；

Fig. 2 is a kind of schematic flow sheet of the method for building up of secondary flow passage of the embodiment of the present invention；

Fig. 3 is the schematic flow sheet of the method for building up of another secondary flow passage of the embodiment of the present invention；Fig. 4 is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；Fig. 5 is the schematic flow sheet of the specific multimedia conference realization method of one of which of the embodiment of the present invention；Fig. 6 is the schematic flow sheet of wherein another specific multimedia conference realization method of the embodiment of the present invention；Fig. 7 is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；Fig. 8 is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；Fig. 9 is that a kind of multimedia conferencing of the embodiment of the present invention realizes the structural representation of system；

Figure 10 is the structural representation of the secondary flow transfer gateway in a kind of multimedia conference system of the embodiment of the present invention；

Figure 11 is the one of which structural representation of the path setup module in Figure 10；

Figure 12 is another structural representation of the path setup module in Figure 10；

Figure 13 is the structural representation of the secondary flow transfer gateway of another multimedia conference system of the embodiment of the present invention；

Figure 14 is the structural representation of the server in a kind of netmeeting of the embodiment of the present invention；Figure 15 is a kind of structural representation of the multipoint control unit of hardware conferencing system of the embodiment of the present invention.Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Fig. 1 is referred to, is a kind of schematic flow sheet of multimedia conference realization method of the embodiment of the present invention.Hardware conferencing system in the embodiment of the present invention includes the true video conferencing system of intelligence, and the methods described of the present embodiment is specifically included：

S101:The secondary flow passage set up between hardware conferencing system. The secondary flow passage to hardware conferencing system can also be set up by asking secondary flow address to the MCU of hardware conferencing system to set up the secondary flow passage of hardware conferencing system at the secondary flow address that the MCU for receiving hardware conferencing system is directly transmitted.

S102:When receiving the network share data of netmeeting, the network share data are converted into standard shared data.

The network share data, can be the shared datas encoded using video format, can be specifically, using customized video format coding, e.g., to be shared for blank, the blank performed is recorded using customized form and is operated（Such as record the peration data that laser pen is rule in some position）.The form of the standard shared data is the video format that the hardware conferencing system is supported, such as H.264 normal video stream format.

S103:The standard shared data is sent to the hardware conferencing system by the secondary flow passage.

S104:When receiving the standard shared data of hardware conferencing system in the secondary flow passage, the standard shared data is sent to netmeeting.

Specifically, it is determined that the netmeeting sends the standard shared data to the netmeeting when supporting the video format of the standard shared data.

It is described to determine that the netmeeting supports the video format of the standard shared data, specifically include, the video format that the video format for determining the standard shared data is supported with the netmeeting pre-set matches, or, determine the video format of the standard shared data to meet video encoding and decoding standard（Such as H.264 video format).

Wherein, above-mentioned network share data or standard shared data include document sharing data, screen sharing data, meeting blank shared data etc..Involved network share data or standard shared data are identical with the content included by the network share data or standard shared data in the present embodiment in following examples.

In the present embodiment, corresponding secondary flow transfer gateway can be set between hardware conferencing system and netmeeting, the secondary flow transfer gateway is connected with the web server in MCU and netmeeting in hardware conferencing system respectively, and described S101 to S104 is performed by the secondary flow transfer gateway.It is of course also possible to perform the S101 to S104 by the MCU in the hardware conferencing system or the web server in netmeeting.

Each conference terminal in hardware conferencing system is that VP terminals realize that the mode being connected with MCU meeting, each web conference terminals in netmeeting realize that the mode being connected with the meeting of web server is same as the prior art, in the present embodiment, the intercommunication of hardware conferencing system and the shared data of netmeeting is completed by the S101 to S104. Specifically, each VP terminal in meeting application Jie's Ρ section, hardware conferencing system sends secondary flow request to MCU, the MCU responses secondary flow request is each VP terminal distributions secondary flow address, to set up VP terminals to MCU secondary flow passage；Each conference terminal in netmeeting sets up the connection to web server；Web server is connected by the secondary flow transfer gateway with the MCU.Secondary flow passage to MCU is set up by the secondary flow transfer gateway, in order to send the network share data of netmeeting to hardware conferencing system.

When a certain web conference terminals in netmeeting send network share data, network share data are sent to web server, the network share data broadcasting is sent to secondary flow transfer gateway by web server to other web conference terminals in netmeeting, and by the network share data.It is described that network share data execution standard video stream is converted in standard shared data, secondary flow transfer gateway can be converted to the network share data video flowing of the standard such as H.264, then MCU is sent to by secondary flow passage, the standard shared data being converted to is broadcast to each VP terminal in hardware conferencing system by MCU.

The mode that the network share data are converted to standard shared data is specifically as follows by the secondary flow transfer gateway, network share data generation image is parsed, the video format supported using the hardware conferencing system carries out coding generation standard shared data to the image of generation.

It should be noted that, other web conference terminals are after the network share data are received, network share data generation image can be parsed and the image is shown on screen, specifically, network share data generation image can be parsed by the web conference clients on web conference terminals and the image is shown on screen.

Specifically, secondary flow transfer gateway parse the network share data generation image mode can be parsed with web conference terminals the network share data generation image mode it is identical, specifically, can in secondary flow transfer gateway the built-in web conference systems web conference clients, the network share data are parsed by built-in web conference clients and generate image, and the video format that the image that built-in web conference clients are generated is supported using hardware conferencing system carries out coding generation standard shared data.

In addition, in web conference terminals, single secondary flow data display window can be created, to play the standard shared data in hardware conferencing system.

The foundation of secondary flow passage was completed in the meeting application stage in the S101.The mode of secondary flow passage that secondary flow transfer gateway is set up to MCU can be：

When receiving the secondary flow authority application information of netmeeting, sent out to the MCU of hardware conferencing system Secondary flow is sent to transmit authority request；Receive the MCU and respond the secondary flow address that the secondary flow transmission authority request is returned；Secondary flow passage to the MCU is set up according to the secondary flow address；

Or be：Receive the secondary flow address that the MCU of hardware conferencing system is sent；Secondary flow passage to the MCU is set up according to the secondary flow address.Secondary flow transfer gateway is after the MCU is linked into, and the MCU directly can distribute secondary flow address for the secondary flow transfer gateway and be sent to the secondary flow transfer gateway.

In above two mode, the MCU is sent to the secondary flow address of secondary flow transfer gateway and the MCU and is in for the secondary flow address of VP terminal distributions in same address field i.e. in same address realm, it should be noted that the conference terminal that VP terminals herein are connected with the web server that the secondary flow transfer gateway is currently accessed is in same meeting.For gateway distribute secondary flow address and be VP terminal distributions secondary flow address be in same address field in, it can cause the network share data that the web conference terminals of netmeeting are sent after gateway, the hardware conferencing system of same meeting can be transferred directly to hold, the standard shared data of hardware conferencing system can also be transferred directly to hold the netmeeting of same meeting.Described secondary flow address can be MCU a certain port information, and VP terminals or secondary flow transfer gateway are accessible to MCU according to the port information.

It is a kind of schematic flow sheet of the method for building up of secondary flow passage of the embodiment of the present invention specifically, referring to Fig. 2 again；In embodiments of the present invention, when receiving the secondary flow authority application information of netmeeting, the secondary flow passage to hardware conferencing system is set up, methods described is specifically included：

S1001:When receiving the secondary flow authority application information of netmeeting, secondary flow transmission authority request is sent to the MCU of hardware conferencing system.

When the user using netmeeting wishes that the user with hardware conferencing system sets up conference communication, secondary flow authority application information can be sent by web conference terminals or by web server.Secondary flow transfer gateway sends a request for secondary flow address after the secondary flow authority application information is received, then to the MCU of hardware conferencing system.

S1002:Receive the MCU and respond the secondary flow address that the secondary flow transmission authority request is returned.

MCU responds the secondary flow transmission authority request, returns to secondary flow address after the secondary flow transmission authority request is received.

S1003:Secondary flow passage to the MCU is set up according to the secondary flow address.

Wherein, setting up secondary flow passage can realize according to prior art.

Optionally, after MCU secondary flow passage is established, announcement information can be sent to the web server of netmeeting and notify secondary flow passage to set up, in order to which the web server is received and forwards network Shared data.

Further, then Fig. 3 is referred to, is the schematic flow sheet of the method for building up of another secondary flow passage of the embodiment of the present invention；In embodiments of the present invention, be hardware conferencing system MCU when for VP terminal distribution secondary flow addresses, the secondary flow address of the distribution is also sent to gateway simultaneously, to set up gateway to the secondary flow passage of hardware conferencing system, methods described is specifically included：

S1011:Receive the secondary flow address that the MCU of hardware conferencing system is sent.

S1012:Secondary flow passage to the MCU is set up according to the secondary flow address.

Wherein, setting up secondary flow passage can realize according to prior art.

In the present embodiment, MCU is while to the VP terminal distribution secondary flow addresses of hardware conferencing system, secondary flow transfer gateway can also be distributed in secondary flow address in same address field, can be by secondary flow transfer gateway and hardware conferencing system intercommunication in order to each conference terminal and web server of the netmeeting that is linked into secondary flow transfer gateway.

It is same optional, after MCU secondary flow passage is established, announcement information can be sent to the web servers of netmeeting and notify secondary flow passage to set up, in order to which the web server is received and forwards network share data.

The embodiment of the present invention can realize the intercommunication shared data between netmeeting and hardware conferencing system.Each conference users need to only operate the conference terminal where it that shared data can be achieved in the shared of netmeeting and hardware conferencing system, and extra operating burden can't be brought to conference users.Netmeeting and hardware conferencing system all carry out meeting according to each original operation, and cylinder list easily realizes cross-system meeting.

Fig. 4 is referred to again, is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；Hardware conferencing system in the embodiment of the present invention includes the true video conferencing system of intelligence, and the methods described of the present embodiment is specifically included：

S201 :When receiving the network share data of netmeeting, to the hardware conferencing system

MCU sends token request；

S202:Receive the MCU and respond the token that the token request is returned；

S203：The network share data of the netmeeting received are converted into standard shared data, and the standard shared data is sent to hardware conferencing system by the secondary flow passage between the MCU that pre-establishes；

In the present embodiment, needed in the network share data for receiving netmeeting to hardware conferencing system , it is necessary to which first to file token is to obtain the authority of transmission standard shared data during transmission, standard shared data could be sent after token is obtained.It should be noted that the time of application and the acquisition of token is very short, the transmission of corresponding standard shared data is not interfered with；And if when application token is unsuccessful, such as MCU does not return to token or returns to token time-out, then the standard shared data of this netmeeting received will be removed or stored in specified memory as invalid data, can't be sent to hardware conferencing system to be broadcast to VP terminals.

S204:When receiving the standard shared data of hardware conferencing system in the secondary flow passage between the MCU that is pre-establishing, the standard shared data is sent to netmeeting.

It should be noted that, in the present embodiment, it is after token is received, perform the network share data for receiving netmeeting to described and perform standard video stream and be converted to standard shared data, and the standard shared data is sent to hardware conferencing system by the secondary flow passage that pre-establishes.In other embodiments, the network share data received first can also be converted into standard shared data and first prepares data, then apply for token, and after token is received, retransmit the standard shared data being converted to.

It is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention specifically, referring to Fig. 5；The present embodiment initiates netmeeting video conference and transmits shared data and be described in detail, and the methods described of the present embodiment includes：

SOI:Web conference terminals send secondary flow application to web server.The user of netmeeting can send corresponding secondary flow application to set up the connection of hardware conferencing system when the user of needs and the true video conferencing system of hardware conferencing system such as intelligence sets up meeting by web conference terminals.

S02:AFGW (Auxiliary Flow Gateway, secondary flow transfer gateway are given in web server forwarding secondary flow application）；Specifically, web conference terminals function, data converting function and embedded VP termination function can be embedded inside the AFGW.

S03：AFGW sends secondary flow application to MCU.

S04:MCU returns to secondary flow address to the AFGW.

S05:AFGW sets up the secondary flow passage to the MCU；The AFGW is according to the secondary flow The secondary flow passage to the MCU is set up in location.

S06:The announcement information that AFGW return secondary flow passages have been set up is to web server.

S07:The announcement information that web server return secondary flow passage has been set up gives web conference terminals, to point out power mouth to enter meeting success.

S08：Web conference terminals send network share data to web server.

S09:Web server sends the network share data to AFGW.The web server broadcasts the network share data to other conference terminals of present networks conference system simultaneously.

S010:AFGW sends token to MCU by secondary flow passage and asked.

SOU:MCU returns to token by secondary flow passage to the AFGW.

The MCU can be when detecting the current hardware conferencing system free time, and the token for responding the AFGW asks to return to token to the AFGW；Or when the token for receiving conference administrator sends order, token is sent to the AFGW；Or it is regular according to the granting of default token, order is sent to the AFGW for example, when receiving AFGW token request and the token request of VP terminals at the same time, token preferentially is sent into AFGW.

S012:AFGW performs standard video stream to the network share data and is converted to standard shared data； S013:The standard shared data being converted to is sent to MCU by secondary flow passage.

S014:Standard shared data described in MCU to VP terminal broadcasts.

It should be noted that creating web server to after MCU secondary flow passage, the standard shared data of hardware conferencing system can send web server to by the secondary flow passage, and each web conference terminal is broadcast to by web server.

The standard shared data that the embodiment of the present invention can be converted to network share data in netmeeting suitable for hardware conferencing system is sent to hardware conferencing system, realizes netmeeting to the shared data intercommunication of hardware conferencing system.And shared data sharing from netmeeting to hardware conferencing system can be achieved in the conference terminal where each user of netmeeting also need to only operate it, extra operating burden can't be brought to Web conference user, cylinder list easily realizes cross-system meeting.

Fig. 6 is referred to again, is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；The present embodiment initiates hardware conferencing system video conference and transmits shared data and be described in detail, and the methods described of the present embodiment includes：

Sll:VP terminals send secondary flow application to MCU.The user of hardware conferencing system is needing to set up video During meeting, secondary flow application is sent to MCU by respective VP terminals.

S12:MCU distribution secondary flows address, is created to the secondary flow passage of VP terminals.

It is created to the secondary flow passage of the VP terminals of multiple participant users.MCU is the corresponding secondary flow address of each VP terminal distribution for participating in same meeting, be in for the secondary flow address of each VP terminal distribution in same address field, in order to MCU according to VP terminal broadcast shared datas from the secondary flow addresses of VP terminals to same meeting.

S13:MCU is that AFGW distributes secondary flow address and is sent to the AFGW.MCU is that the secondary flow address that AFGW is distributed is similarly positioned in the address field residing for the secondary flow address of above-mentioned VP terminals.

S14:AFGW sets up the secondary flow passage to MCU according to the secondary flow address.

S 15：AFGW sends the announcement information that secondary flow passage has been set up to web server.

S16:Web server sends the announcement information that secondary flow passage has been set up to web conference terminals.I.e. to each and can the web conference terminals of user send the announcement information set up of secondary flow passage.

S17:Web conference terminals create secondary flow data display window.Secondary flow data display window is used for the standard shared data that viewing hardware conference system is sended over.When it is implemented, this step is option, standard shared data is shown in the video player that web conference terminals can be for example conventional in existing video playback window.

S18:VP terminals send standard shared data to MCU.

S19:The standard shared data is sent to AFGW by MCU by the secondary flow passage.The standard shared data can be broadcast to other VP terminals by the MCU simultaneously.

S110:The standard shared data is sent to web server by AFGW.

Sill:The standard shared data is sent to web conference terminals by web server, that is, is broadcast to each web conference terminal.

S112:Web conference terminals show the standard shared data in the secondary flow data display window of establishment.It should be noted that after AFGW to MCU secondary flow passage is created, the network share data of web conference terminals can pass to hardware conferencing system by way of described in a upper embodiment.

The standard shared data of hardware conferencing system can be sent directly in netmeeting by the embodiment of the present invention, and do not need user to be operated to specified middle control computer, avoid bringing extra operating burden to user, hardware conferencing system carries out meeting according to its own original operation, and cylinder list easily realizes cross-system meeting.

Fig. 7 is referred to again, is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；The multimedia conference realization method is described in detail with netmeeting for the present embodiment, described Method includes：

S301 :Secondary flow authority application information is sent to secondary flow transfer gateway；

It can specifically be filed an application by the web conference terminals or web server in netmeeting, in order to which the secondary flow transfer gateway is after this application is received, secondary flow passage is set up in the MCU requests into hardware conferencing system.Each web conference terminals in netmeeting, which are set up, to be connected with the meeting of web server and can be achieved by the prior art.

S302:Receive the secondary flow transfer gateway and respond the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up；

The secondary flow transfer gateway can using the various embodiments described above the secondary flow passage that completes to set up to the MCU in hardware conferencing system set up by the way of secondary flow passage.

In addition, after the announcement information that the secondary flow passage for receiving the secondary flow transfer gateway transmission has been set up, the announcement information can also be sent to all web conference terminals, to notify each web conference terminals to be held a meeting with the user of hardware conferencing system.Web conference terminals can also create the standard shared data that a single secondary flow data display window transmits in order to viewing hardware conference terminal according to the announcement information.

Described S301 to S302 is completed in the meeting application stage, after the secondary flow passage by secondary flow transfer gateway to hardware conferencing system is established, the web server in netmeeting can send the network share data of each web conference terminals to the VP terminals of hardware conferencing system.

S303:In the network share data that the conference terminal for receiving conference system is sent, the network share data are sent to secondary flow transfer gateway.So that the network share data are converted to standard shared data and send the standard shared data to the hardware conferencing system by the secondary flow passage between hardware conferencing system that pre-establishes by the secondary flow transfer gateway.The form of the standard shared data is the video format that the hardware conferencing system is supported.

Include document sharing data when the user in netmeeting is transmitted by web conference terminals, screen sharing data, during the shared datas of type such as meeting blank shared data, the web conference terminals send corresponding network share data to web server, the data forwarding is given secondary flow transfer gateway by web server, by secondary flow transfer gateway hardware conferencing system is given by the network share data forwarding, specifically, secondary flow transfer gateway is converted to the network share data after standard shared data, it is sent to the MCU in hardware conferencing system, each VP terminals are broadcast to by MCU.

If in addition, in hardware conferencing system by the way of Token Control data transfer, the secondary flow transfer gateway also needs to apply for token to MCU, after token is got, network share data is changed and passed through Secondary flow passage sends the standard shared data after conversion to MCU.

S304:When coming from the standard shared data of hardware conferencing system of secondary flow transfer gateway transmission is being received, the standard shared data of the hardware conferencing system is broadcasted to the conference terminal of conference system.The standard shared data of the hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

In the hardware conferencing system for receiving the transmission of secondary flow transfer gateway during the standard shared data of corresponding VP terminals, web server is to each web conference terminals broadcast reception of local terminal to standard shared data.

Alternatively, after the announcement information that the secondary flow passage for receiving the secondary flow transfer gateway response secondary flow authority application information return has been set up, in addition to：The conference terminal of netmeeting is notified to create the secondary flow data display window of the standard shared data sent for viewing hardware conference system, so after the standard shared data of secondary flow transfer gateway transmission is received, you can the standard shared data is shown in the window.

Fig. 8 is referred to again, is the schematic flow sheet of another multimedia conference realization method of the embodiment of the present invention；The multimedia conference realization method is described in detail with hardware conferencing system for the embodiment of the present invention, and methods described is specifically included：

S401 :Supplemented by stream transfer gateway distribution secondary flow address, and the secondary flow address is sent to the secondary flow transfer gateway, so that the secondary flow transfer gateway sets up secondary flow passage according to the secondary flow address.

User in hardware conferencing system can send secondary flow to MCU applications by VP terminals and transmit authority request to obtain the foundation of secondary flow address to the secondary flow passage of the MCU, realize sending and receiving for standard shared data.After MCU is the VP terminal distribution secondary flows address of each conference users, while also to secondary flow address corresponding with the secondary flow transfer gateway transmission that its signal is connected.Wherein, MCU is the VP terminal distribution secondary flow addresses of corresponding conference users and setting up secondary flow passage can use prior art to realize.

In the S401, MCU can directly supplemented by stream transfer gateway distribution secondary flow address, and secondary flow address is sent to secondary flow transfer gateway；It can also respond the secondary flow transmission authority request after the secondary flow transmission authority request of secondary flow transfer gateway transmission is received and perform the S401.

By described S401 for pre-establish secondary flow passage the step of, after secondary flow passage is set up, network Shared data, screen sharing data, the shared data of the type such as meeting blank shared data.The above-mentioned secondary flow address for VP terminal distributions secondary flow address of stream transfer gateway distribution with supplemented by is in same address field.

S402:In the standard shared data of the i.e. VP terminals of the conference terminal in receiving hardware conferencing system, the standard shared data is sent to the secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；

The standard shared data of the conference terminal of this corresponding hardware conferencing system received is sent to the web server of netmeeting by secondary flow transfer gateway, and the standard shared data is broadcasted from web server to each web conference terminal.Web conference terminals can show the standard shared data in its secondary flow set up data display window.

S403:When receiving the standard shared data of the secondary flow transfer gateway sent by the secondary flow passage between secondary flow transfer gateway pre-established, the conference terminal into hardware conferencing system broadcasts the standard shared data of the secondary flow transfer gateway；Wherein, the standard shared data of the secondary flow transfer gateway is that the secondary flow transfer gateway is converted to the network share data of netmeeting.

When the user in netmeeting needs transmission network shared data, network share data are sent to web server by web conference terminals, the network share data are sent to secondary flow transfer gateway by web server again, the network share data are converted to by secondary flow transfer gateway hardware conferencing system is transmitted to after standard shared data, specifically, secondary flow transfer gateway is converted to the network share data after standard shared data, the MCU in hardware conferencing system is sent to, each VP terminals are broadcast to by MCU.

In addition, if in hardware conferencing system by the way of Token Control transmission, the secondary flow transfer gateway is also needed to apply for token to MCU, after token is got, and network share data are changed and the standard shared data after conversion is sent to MCU by secondary flow passage.

The relevant device and system of realizing multimedia conferencing of the embodiment of the present invention are described in detail below.Fig. 9 is referred to, is that a kind of multimedia conferencing of the embodiment of the present invention realizes the structural representation of system；The system of the present embodiment includes：Secondary flow transfer gateway 00, web server 11, at least one web meeting Terminal, is illustrated by taking web conference terminals 12 therein as an example, and other web conference terminals carry out identical operation, and MCU21, at least one VP terminal, is illustrated by taking VP terminals 22 therein as an example, and other VP terminals carry out identical operation.

Wherein, the web server 11, web conference terminals 12 are the equipment of netmeeting, and MCU21 the and VP terminals 22 are the equipment of hardware conferencing system, and the hardware conferencing system in the embodiment of the present invention includes the true video conferencing system of intelligence.

The web server 11, for receiving the network share data that the web conference terminals 12 are sent, and sends the network share data to the secondary flow transfer gateway 00；

The secondary flow transfer gateway 00, for when receiving the network share data of the transmission of web server 11, the network share data are converted into standard shared data, and the standard shared data being converted to is sent to the MCU21 by the secondary flow passage；

The MCU21, for sending the standard shared data that the secondary flow transfer gateway 00 is converted to the VP terminals 22；

The MCU21, is additionally operable to receive the standard shared data that the VP terminals 22 are sent, and send the standard shared data to the secondary flow transfer gateway 00；

The secondary flow transfer gateway 00, it is additionally operable to when receiving the standard shared data that the MCU21 is sent in the secondary flow passage pre-established, sends the MCU standard shared datas sent to the web servers 11 during the video format for determining the standard shared data that the netmeeting supports the MCU to send;

The web server 11 is additionally operable to send the standard shared data that the MCU is sent to the web conference terminals 12.

It is further alternative, the secondary flow transfer gateway 00 is additionally operable to send token request to obtain the authority of transmission standard shared data to the MCU21, and the token that the MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

The secondary flow transfer gateway 00 can be after the network share data of web server 11 be received, token request is sent to the MCU21, and after the token that the MCU21 responses token request is returned is received, network share data conversion is obtained into standard shared data and is sent to MCU21, or after the network share data of web server 11 are received, network share data conversion is obtained into standard shared data, then token request is sent to the MCU21 of the hardware conferencing system, and after the token that the MCU21 responses token request is returned is received, the standard shared data that network share data conversion is obtained is sent to MCU21。

The mode that the network share data are converted to standard shared data is specifically as follows by the secondary flow transfer gateway 00, network share data generation image is parsed, the video format supported using the hardware conferencing system carries out coding generation standard shared data to the image of generation.

It should be noted that, web conference terminals 12 are after the network share data are received, network share data generation image can be parsed and the image is shown on screen, specifically, network share data generation image can be parsed by the web conference clients on web conference terminals 12 and the image is shown on screen.

Specifically, the mode that secondary flow transfer gateway 00 parses network share data generation image can be identical with the mode of the parsing network share data generation image of web conference terminals 12, specifically, can in secondary flow transfer gateway 00 the built-in web conference systems web conference clients, the network share data are parsed by built-in web conference clients and generate image, and the video format that the image that built-in web conference clients are generated is supported using hardware conferencing system carries out coding generation standard shared data.

Specifically, refer to Figure 10, be the embodiment of the present invention a kind of multimedia conference system in secondary flow transfer gateway structural representation；The secondary flow transfer gateway of the embodiment of the present invention can be the secondary flow transfer gateway 00 in said system embodiment.The secondary flow transfer gateway includes：Path setup module 000, receiving module 001, modular converter 002 and sending module 003, wherein,

The path setup module 000, for setting up the secondary flow passage between hardware conferencing system.

The receiving module 001, the network share data for receiving netmeeting, and for the standard shared data for the secondary flow channel reception hardware conferencing system set up by the path setup module 000；

The modular converter 002, for when the receiving module receives network share data, network share data execution standard video stream is converted into standard shared data, the form of the standard shared data is the video format that the hardware conferencing system is supported；

The sending module 003, for the secondary flow passage set up by the path setup module 000 the standard shared data that the modular converter is converted to is sent to hardware conferencing system, and for it is determined that the netmeeting sends the standard shared data to netmeeting when supporting the video format for the standard shared data that the receiving module 001 receives.

In the present embodiment, each conference terminal is that VP terminals realize that each web conference terminals in the mode being connected with MCU meeting and netmeeting realize that the mode being connected with the meeting of web server is same as the prior art in hardware conferencing system, the present embodiment by the path setup module 000, receiving module 001, Modular converter 002 and sending module 003 complete the intercommunication of hardware conferencing system and the shared data of netmeeting.

Include document sharing data when a certain web conference terminals in netmeeting are sent, screen sharing data, during the network share data of meeting blank shared data, network share data are sent to web server, the network share data broadcasting is sent to gateway by web server to other web conference terminals in netmeeting, and by the network share data.The modular converter 002 can be converted to the network share data video flowing of the standard such as H.264, then send MCU to by secondary flow passage, the standard shared data being converted to is broadcast to each VP terminal in hardware conferencing system by MCU.

The secondary flow passage was completed in the meeting application stage.The foundation of secondary flow passage can be：When receiving the secondary flow authority application information of web servers, secondary flow address is applied for MCU（Send the application of secondary flow transmission authority request), and the secondary flow passage to the MCU is set up in the secondary flow address returned according to MCU；Or be：Receive the MCU it is direct supplemented by stream transfer gateway distribution secondary flow address, ^^ according to receive the MCU distribution secondary flow address set up to the MCU secondary flow passage.

Figure 11 specifically is referred to, is the one of which structural representation of the path setup module in Figure 10；The path setup module 000 includes：

Application unit 0041, for when receiving the secondary flow authority application information of netmeeting, secondary flow transmission authority request to be sent to the MCU of hardware conferencing system；

Receiving unit 0042, the secondary flow address that the secondary flow transmission authority request is returned is responded for receiving the MCU；

Unit 0043 is set up, the secondary flow passage to the MCU is set up in the secondary flow address for being received according to the receiving unit 0042.

When the user using netmeeting wishes that the user with hardware conferencing system sets up conference communication, secondary flow authority application information can be sent by web conference terminals or by web server.Secondary flow transition net Pass sends a request for secondary flow address after the secondary flow authority application information is received, then to the MCU of hardware conferencing system.

MCU responds the secondary flow transmission authority request, returns to secondary flow address and give secondary flow transfer gateway after the secondary flow transmission authority request is received.

Optionally, set up described after unit 0043 establishes MCU secondary flow passage, announcement information can be sent to the web server of netmeeting and notify secondary flow passage set up, in order to which the web server is received and forwards network share data.

Or, the path setup module can also be the structure shown in Figure 12, and it includes：

Receiving unit 0044, for receiving the secondary flow address that the MCU of hardware conferencing system is sent；Unit 0045 is set up, the secondary flow passage to the MCU is set up in the secondary flow address for being received according to the receiving unit 0044；Wherein, the secondary flow address includes the secondary flow address that the MCU distributes for the conference terminal of hardware conferencing system.

It is same optional, set up described after unit 0045 establishes MCU secondary flow passage, announcement information, which can be sent, to the web server of netmeeting notifies secondary flow passage to set up, in order to which the web servers are received and forward network share data.

Further, then refer to Figure 13, be the embodiment of the present invention another multimedia conference system in secondary flow transfer gateway structural representation；The secondary flow transfer gateway in the present embodiment includes the receiving module 001 in above-mentioned Figure 11 correspondence embodiments, modular converter 002, sending module 003 and path setup module 000, further, in embodiments of the present invention, the secondary flow transfer gateway also includes：

Token application module 005, asked for sending token to the MCU of the hardware conferencing system to obtain the authority of transmission standard shared data, and the token that the MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

In the present embodiment, when sending network share data to hardware conferencing system, the secondary flow transfer gateway is needed by the first to file token of token application module 005 to obtain the authority of transmission network share data, and network share data could be sent after token is obtained.It should be noted that the time of application and the acquisition of token is blunt short, the transmission of corresponding network share data is not interfered with；And if when application token is unsuccessful, such as MCU does not return to token or returns to token time-out, then the network share data of this netmeeting received will be removed or stored in specified memory as invalid data, can't be sent to hardware conferencing system to be broadcast to VP terminals.

After token is got, send announcement information and notify the modular converter 002, by the modular converter 002 completes the conversion of network share data, and the standard shared data being converted to is sent by sending module 003.Certainly in other embodiments, the conversion of network share data can be first completed by the modular converter 002, then applies for token to MCU, and after token is obtained, the standard shared data being converted to is sent by sending module 003.

It is further alternative, the path setup module 000 is set up to after MCU secondary flow passage, the sending module 003 is additionally operable to send the announcement information set up of secondary flow passage to the web server of netmeeting, to notify the web server transmission network shared data.That is, need to notify the web servers to set up communication connection with hardware conferencing system, if and the path setup module 000 do not complete set up to MCU secondary flow passage when, also the announcement information of connection failure can be sent to web server, in order to which the user of netmeeting recognizes connection failure, user can carry out reconnection operation.

In addition, the modular converter 002 generates image specifically for parsing the network share data, the video format supported using the hardware conferencing system is carried out coding to the image of generation and generates the standard shared data, specifically, for example, the shared data generation image that the modular converter 002 parses the netmeeting parses the network share data generation image specifically by the client of the built-in netmeeting.

Refer to Figure 14 again, be the embodiment of the present invention a kind of netmeeting in server structural representation；The server in the present embodiment can be the web server 11 in said system embodiment, and the server of the present embodiment includes：

Processing module 111, for when receiving the network share data of conference terminal transmission of netmeeting, the network share data are sent to the secondary flow transfer gateway, so that the standard shared data that the network share data are converted to standard shared data and are converted to standard shared data to the transmission of hardware conferencing system by the secondary flow passage between hardware conferencing system pre-established by the secondary flow transfer gateway, the form of the standard shared data is the video format that the hardware conferencing system is supported；

When coming from the standard shared data of hardware conferencing system of the secondary flow transfer gateway transmission is being received, the standard shared data of the hardware conferencing system is broadcasted to the conference terminal of netmeeting, it is described The standard shared data of hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

Further specifically, referring to Figure 14, the server in the netmeeting can also include：Apply for module 112, for sending secondary flow authority application information to secondary flow transfer gateway, so that the secondary flow transfer gateway applies for secondary flow address to set up secondary flow transfer gateway to the secondary flow passage of the MCU in hardware conferencing system according to the secondary flow authority application information to the MCU of hardware conferencing system；

Receiving module 113, the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up is responded for receiving the secondary flow transfer gateway.

The secondary flow transfer gateway can be the secondary flow transfer gateway 00 in the multimedia conference system of above-described embodiment, and the mode for setting up secondary flow passage is also identical with the mode that the secondary flow transfer gateway in above-mentioned multimedia conference system sets up secondary flow passage.

When the user in netmeeting transmits network shared data by web conference terminals, the web conference terminals send corresponding network share data to web server, the network share data forwarding is given secondary flow transfer gateway by the processing module 111 of web server, by secondary flow transfer gateway hardware conferencing system is given by the network share data forwarding, specifically, secondary flow transfer gateway is to be converted to the network share data after standard shared data, it is sent to the MCU in hardware conferencing system, each VP terminals are broadcast to by MCU, complete document sharing.

In addition, if in hardware conferencing system by the way of Token Control transmission, the secondary flow transfer gateway is after the network share data are received, also need to apply for token to MCU, after token is got, network share data are changed and the standard shared data after conversion is sent to MCU by secondary flow passage.

Further, then the server that refers in Figure 14, the netmeeting can also include：Notification module 114, for after the receiving module receives the announcement information that secondary flow passage has been set up, notifying the conference terminal of netmeeting to create the secondary flow data display window of the standard shared data sent for viewing hardware conference system.

Server in netmeeting is after the announcement information that the secondary flow passage for receiving the secondary flow transfer gateway transmission has been set up, the announcement information can also be sent to all web conference terminals, to notify each web conference terminals to be held a meeting with the user of hardware conferencing system.Web conference terminals can create a single secondary flow data display window in order to which the standard that viewing hardware conference terminal is transmitted is total to according to the announcement information Enjoy data.

Refer to Figure 15 again, be the embodiment of the present invention a kind of hardware conferencing system in multipoint control unit structural representation.The multipoint control unit in the present embodiment is the MCU21 of said system embodiment, and the multipoint control unit includes：

Processing module 214, with in the standard shared data of the conference terminal in receiving hardware conferencing system, the standard shared data is sent to the secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；

Further specifically, referring to Figure 15 again, the multipoint control unit also includes：Distribute module 212.The distribute module 212, for distributing secondary flow address for the secondary flow transfer gateway, and is sent to the secondary flow transfer gateway by the secondary flow address, to set up the secondary flow passage between the secondary flow transfer gateway.

User in hardware conferencing system can send secondary flow by VP terminals to MCU applications to be asked, to set up the secondary flow passage of the MCU, to realize sending and receiving for standard shared data.MCU by distribute module 212 for the VP terminal distribution secondary flows address of each conference users after, while also to the secondary flow transfer gateway distribution secondary flow address being connected with its signal.Certainly, the distribute module 212 can also be only when the secondary flow for receiving the transmission of secondary flow transfer gateway transmits authority request, it is secondary flow transfer gateway distribution secondary flow address to respond the secondary flow transmission authority request, and the secondary flow address is sent into the secondary flow transfer gateway.

The standard shared data of hardware conferencing system can be sent directly in netmeeting by the embodiment of the present invention, and do not need user to be operated to specified middle control computer, avoid bringing extra operating burden to user, hardware conferencing system carries out meeting according to its own original operation, and cylinder list easily realizes cross-system meeting. The embodiment of the present invention additionally provides the secondary flow transfer gateway in another multimedia conference system, and the secondary flow transfer gateway includes：Receiver, transmitter and processor, wherein, the processing implement body performs following steps：

The secondary flow passage set up between hardware conferencing system；

When the receiver receives the network share data of netmeeting, the network share data are converted into standard shared data, and controlling the transmitter to send the standard shared data to the hardware conferencing system by the secondary flow passage, the form of the standard shared data is the video format that the hardware conferencing system is supported；

When the receiver receives the standard shared data of hardware conferencing system in the secondary flow passage, determine that the netmeeting is supported to control the transmitter to send the standard shared data to netmeeting during the video format of the standard shared data.

In a kind of feasible embodiment of the present invention, the mode that the processor sets up secondary flow passage includes：When the receiver receives the secondary flow authority application information of netmeeting, the transmitter is controlled to send secondary flow transmission authority request to the MCU of hardware conferencing system；

When the receiver receives the MCU and responds the secondary flow address that the secondary flow transmission authority request is returned, the secondary flow passage to the MCU is set up according to the secondary flow address.

In another feasible embodiment of the present invention, the mode that the processor sets up secondary flow passage includes：During the secondary flow address that the MCU for receiving hardware conferencing system in the receiver is sent, the secondary flow passage to the MCU is set up according to the secondary flow address.

In another feasible embodiment of the present invention, the processor is also executed the following steps after the step of being set up according to the secondary flow address to the secondary flow passage of the MCU is performed：The announcement information that the transmitter transmission secondary flow passage has been set up is controlled to the network web server of netmeeting, to notify the network web server transmission network shared data.

In another feasible embodiment of the present invention, the processor is also executed the following steps before the step of sending the standard shared data to hardware conferencing system by the secondary flow passage pre-established is performed：The transmitter is controlled to send token request to obtain the authority of transmission standard shared data to the MCU of the hardware conferencing system, and the token that the MCU responds the token request return is received by the receiver, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

In another feasible embodiment of the present invention, the network share data are converted to standard shared data by the computing device to be included：Parse the network share data generation image；Using the hardware The video format that conference system is supported carries out the coding generation standard shared data to the image of generation.

In another feasible embodiment of the embodiment of the present invention, the shared data generation image that the computing device parses the netmeeting generates image specifically, parsing the network share data by the client of the built-in netmeeting.

The embodiment of the present invention additionally provides the server in another netmeeting, and the server may include transmitter, receiver and processor, wherein, the computing device following steps：

During the network share data that the conference terminal for receiving netmeeting in the receiver is sent, the transmitter is controlled to send the network share data to secondary flow transfer gateway, so that the standard shared data that the network share data are converted to standard shared data and are converted to by the secondary flow passage between hardware conferencing system pre-established to hardware conferencing system transmission by the secondary flow transfer gateway, the form of the standard shared data is the video format that the hardware conferencing system is supported；

When coming from the standard shared data of hardware conferencing system of secondary flow transfer gateway transmission is received in the receiver, the transmitter is controlled to broadcast the standard shared data of the hardware conferencing system to the conference terminal of conference system, the standard shared data of the hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

In a kind of feasible embodiment of the present invention, the secondary flow passage that the computing device is pre-established between hardware conferencing system includes：

The transmitter is controlled to send secondary flow authority application information to secondary flow transfer gateway, so that the secondary flow transfer gateway asks secondary flow address according to the secondary flow authority application information to the MCU in hardware conferencing system and sets up the secondary flow passage to the MCU according to secondary flow address；

Control the receiver to receive the secondary flow transfer gateway and respond the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up.

In another feasible embodiment of the present invention, after the announcement information that the secondary flow passage that the processor controls the receiver to receive the secondary flow transfer gateway response secondary flow authority application information return has been set up, also execute the following steps：The conference terminal of netmeeting is notified to create for viewing hardware meeting The secondary flow data display window for the standard shared data that system is sent.

The embodiment of the present invention additionally provides the MCU in another hardware conferencing system, and the MCU includes transmitter, receiver and processor, wherein, the computing device following steps：

When the receiver receives the standard shared data of conference terminal in hardware conferencing system, the standard shared data is sent to secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；

When the receiver receives the standard shared data of the secondary flow transfer gateway sent by the secondary flow passage between secondary flow transfer gateway pre-established, conference terminal of the transmitter into hardware conferencing system is controlled to broadcast the standard shared data, wherein, the standard shared data of the secondary flow transfer gateway is that the secondary flow transfer gateway is converted to the network share data of netmeeting.

In a kind of feasible embodiment of the present invention, the secondary flow passage that the computing device is pre-established between secondary flow transfer gateway includes：

Secondary flow address is distributed for the secondary flow transfer gateway, and controls the transmitter that the secondary flow address is sent into the secondary flow transfer gateway, so that the secondary flow transfer gateway sets up secondary flow passage according to the secondary flow address.

In another feasible embodiment of the present invention, the computing device is secondary flow transfer gateway distribution secondary flow address, and before controlling the step of secondary flow address is sent to the secondary flow transfer gateway by the transmitter, when being that the secondary flow for receiving the secondary flow transfer gateway in the receiver transmits authority request, it is secondary flow transfer gateway distribution secondary flow address to respond the secondary flow transmission authority request, and controls the transmitter that the secondary flow address is sent into the secondary flow transfer gateway.

One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method is realized, It can be by computer program to instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium, and the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc, CD, read-only memory（Read-Only Memory, ROM) or random access memory（Random Access Memory, RAM) etc..

Above disclosure is only preferred embodiment of present invention, can not limit the interest field of the present invention, therefore the equivalent variations made according to the claims in the present invention with this certainly, still belongs to the scope that the present invention is covered.

Claims

Claim

1st, a kind of multimedia conference realization method, it is characterised in that including：

The secondary flow passage set up between hardware conferencing system；

When receiving the network share data of netmeeting, the network share data are converted into standard shared data, and the standard shared data is sent to the hardware conferencing system by the secondary flow passage, the form of the standard shared data is the video format that the hardware conferencing system is supported；

When receiving the standard shared data of hardware conferencing system in the secondary flow passage, determine that the netmeeting is supported to send the standard shared data to the netmeeting during video format of the standard shared data.

2nd, the method as described in claim 1, it is characterised in that the secondary flow passage between the foundation and hardware conferencing system includes：

When receiving the secondary flow authority application information of netmeeting, secondary flow transmission authority request is sent to the multipoint control unit MCU of hardware conferencing system；

Receive the multipoint control unit MCU and respond the secondary flow address that the secondary flow transmission authority request is returned；Secondary flow passage to the multipoint control unit MCU is set up according to the secondary flow address.

3rd, the method as described in claim 1, it is characterised in that the secondary flow passage between the foundation and hardware conferencing system includes：

Receive the secondary flow address that the multipoint control unit MCU of hardware conferencing system is sent；

Secondary flow passage to the multipoint control unit MCU is set up according to the secondary flow address.

4th, method as claimed in claim 2 or claim 3, it is characterised in that set up described according to the secondary flow address to after the secondary flow passage of the multipoint control unit MCU, in addition to：

The announcement information set up of secondary flow passage is sent to the network web server of netmeeting, to notify the network web server transmission network shared data.

5th, the method as described in claim any one of 1-4, it is characterised in that it is described the standard shared data is sent to hardware conferencing system by the secondary flow passage before, in addition to： Send token request to obtain the authority of transmission standard shared data to the multipoint control unit MCU of the hardware conferencing system, and the token that the multipoint control unit MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

6th, the method as described in claim 1, it is characterised in that described the network share data are converted into standard shared data to include：

Parse the network share data generation image；

The video format supported using the hardware conferencing system is carried out coding to the image of generation and generates the standard shared data.

7th, method as claimed in claim 6, it is characterised in that the shared data generation image of the parsing netmeeting generates image specifically, parsing the network share data by the client of the built-in netmeeting.

8th, a kind of multimedia conference realization method, it is characterised in that including：

In the network share data that the conference terminal for receiving netmeeting is sent, the network share data are sent to secondary flow transfer gateway, so that the standard shared data that the network share data are converted to standard shared data and are converted to by the secondary flow passage between hardware conferencing system pre-established to hardware conferencing system transmission by the secondary flow transfer gateway, the form of the standard shared data is the video format that the hardware conferencing system is supported；

Receiving when coming from the standard shared data of hardware conferencing system of secondary flow transfer gateway transmission, the standard shared data of the hardware conferencing system is broadcasted to the conference terminal of netmeeting, and the standard shared data of the hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

9th, method as claimed in claim 8, it is characterised in that the process of setting up of the secondary flow passage pre-established includes：

Secondary flow authority application information is sent to secondary flow transfer gateway, so that the secondary flow transfer gateway asks secondary flow address according to the secondary flow authority application information to the multipoint control unit MCU in hardware conferencing system and sets up the secondary flow passage to the multipoint control unit MCU according to secondary flow address； Receive the secondary flow transfer gateway and respond the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up.

10th, method as claimed in claim 9, it is characterised in that after the announcement information that the secondary flow passage that the reception secondary flow transfer gateway responds the secondary flow authority application information return has been set up, in addition to：The conference terminal of netmeeting is notified to create the secondary flow data display window of the standard shared data sent for viewing hardware conference system.

11st, a kind of multimedia conference realization method, it is characterised in that including：

In the standard shared data of conference terminal in receiving hardware conferencing system, the standard shared data is sent to secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；

When receiving the standard shared data of the secondary flow transfer gateway sent by the secondary flow passage between secondary flow transfer gateway pre-established, conference terminal into hardware conferencing system broadcasts the standard shared data of the secondary flow transfer gateway, wherein, the standard shared data of the secondary flow transfer gateway is that the secondary flow transfer gateway is converted to the network share data of netmeeting.

12nd, method as claimed in claim 11, it is characterised in that pre-establish the secondary flow passage between secondary flow transfer gateway, including：

Secondary flow address is distributed for the secondary flow transfer gateway, and the secondary flow address is sent to the secondary flow transfer gateway, so that the secondary flow transfer gateway sets up secondary flow passage according to the secondary flow address.

13rd, method as claimed in claim 12, it is characterised in that

Described for secondary flow transfer gateway distribution secondary flow address, and the secondary flow address is sent to before the secondary flow transfer gateway, in addition to：Receive the secondary flow transmission authority request that secondary flow transfer gateway is sent；It is described to distribute secondary flow address for the secondary flow transfer gateway, and the secondary flow address is sent to the secondary flow transfer gateway, including：It is secondary flow transfer gateway distribution secondary flow address to respond the secondary flow transmission authority request, and the secondary flow address is sent into the secondary flow transfer gateway.

14th, the secondary flow transfer gateway in a kind of multimedia conference system, it is characterised in that including： Path setup module, for setting up the secondary flow passage between hardware conferencing system；

Receiving module, the network share data for receiving netmeeting, and for the standard shared data for the secondary flow channel reception hardware conferencing system set up by the path setup module；

Modular converter, for when the receiving module receives network share data, the network share data to be converted into standard shared data, the form of the standard shared data is the video format that the hardware conferencing system is supported；

Sending module, for the secondary flow passage set up by the path setup module standard shared data that the modular converter is converted to is sent to hardware conferencing system, and for it is determined that the netmeeting sends the standard shared data to netmeeting when supporting the video format for the standard shared data that the receiving module receives.

15th, secondary flow transfer gateway as claimed in claim 14, it is characterised in that the path setup module includes：

Application unit, for when receiving the secondary flow authority application information of netmeeting, secondary flow transmission authority request to be sent to the multipoint control unit MCU of hardware conferencing system；

Receiving unit, the secondary flow address that the secondary flow transmission authority request is returned is responded for receiving the multipoint control unit MCU；

Unit is set up, the secondary flow passage to the multipoint control unit MCU is set up in the secondary flow address for being received according to the receiving unit.

16th, secondary flow transfer gateway as claimed in claim 14, it is characterised in that the path setup module includes：

Receiving unit, for receiving the secondary flow address that the multipoint control unit MCU of hardware conferencing system is sent；Unit is set up, the secondary flow passage to the multipoint control unit MCU is set up in the secondary flow address for being received according to the receiving unit.

17th, the secondary flow transfer gateway as described in claim 15 or 16, it is characterised in that

The sending module is additionally operable to send the announcement information set up of secondary flow passage to the web server of netmeeting, to notify the web server transmission network shared data. 18th, the secondary flow transfer gateway as described in claim any one of 14-17, it is characterised in that also include：Token application module, asked for sending token to the multipoint control unit MCU of the hardware conferencing system to obtain the authority of transmission standard shared data, and the token that the multipoint control unit MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

19th, secondary flow transfer gateway as claimed in claim 14, it is characterized in that, the modular converter generates image specifically for parsing the network share data, and the video format supported using the hardware conferencing system is carried out coding to the image of generation and generates the standard shared data.

20th, method as claimed in claim 19, characterized in that, the shared data generation image that the modular converter parses the netmeeting parses the network share data generation image specifically by the client of the built-in netmeeting.

21st, the server in a kind of netmeeting, it is characterised in that including：

Processing module, for when receiving the network share data of conference terminal transmission of netmeeting, the network share data are sent to the secondary flow transfer gateway, so that the standard shared data that the network share data are converted to standard shared data and are converted to standard shared data to the transmission of hardware conferencing system by the secondary flow passage between hardware conferencing system pre-established by the secondary flow transfer gateway, the form of the standard shared data is the video format that the hardware conferencing system is supported；

Receiving when coming from the standard shared data of hardware conferencing system of the secondary flow transfer gateway transmission, the standard shared data of the hardware conferencing system is broadcasted to the conference terminal of netmeeting, and the standard shared data of the hardware conferencing system is the secondary flow transfer gateway by the secondary flow channel reception between hardware conferencing system that pre-establishes from hardware conferencing system.

22nd, server as claimed in claim 21, it is characterised in that also include：

Apply for module, for sending secondary flow authority application information to secondary flow transfer gateway, so that the secondary flow transfer gateway applies for secondary flow address to set up secondary flow transfer gateway to the secondary flow passage of the multipoint control unit MCU in hardware conferencing system according to the secondary flow authority application information to the multipoint control unit MCU of hardware conferencing system； Receiving module, the announcement information that the secondary flow passage of the secondary flow authority application information return has been set up is responded for receiving the secondary flow transfer gateway.

23rd, the server as described in claim 21 or 22, it is characterised in that also include：

Notification module, for after the receiving module receives the announcement information that secondary flow passage has been set up, notifying the conference terminal of netmeeting to create the secondary flow data display window of the standard shared data sent for viewing hardware conference system.

24th, the multipoint control unit in a kind of hardware conferencing system, it is characterised in that including：

Processing module, for in the standard shared data of conference terminal in receiving hardware conferencing system, the standard shared data is sent to the secondary flow transfer gateway by the secondary flow passage between secondary flow transfer gateway that pre-establishes, so that the standard shared data is sent to netmeeting by the secondary flow transfer gateway；When receiving the standard shared data of the secondary flow transfer gateway sent by the secondary flow passage between secondary flow transfer gateway pre-established, conference terminal into hardware conferencing system broadcasts the standard shared data of the secondary flow transfer gateway, wherein, the standard shared data of the secondary flow transfer gateway is that the secondary flow transfer gateway is converted to the network share data of netmeeting.

25th, multipoint control unit as claimed in claim 24, it is characterised in that also include：

Distribute module, for distributing secondary flow address for the secondary flow transfer gateway, and is sent to the secondary flow transfer gateway by the secondary flow address, to set up the secondary flow passage between the secondary flow transfer gateway.

26th, multipoint control unit as claimed in claim 25, it is characterised in that

When the distribute module in the secondary flow for receiving the transmission of secondary flow transfer gateway specifically for transmitting authority request, it is secondary flow transfer gateway distribution secondary flow address to respond the secondary flow transmission authority request, and the secondary flow address is sent into the secondary flow transfer gateway.

27th, a kind of multimedia conferencing realizes system, it is characterised in that including：The web servers of netmeeting and at least one web conference terminal, the multipoint control unit MCU of hardware conferencing system and at least one VP terminal, and secondary flow transfer gateway, wherein, the secondary flow transfer gateway is connected with the web server, and the secondary flow transfer gateway establishes the secondary flow passage of the multipoint control unit MCU； The web server, the network share data are sent for receiving the network share data that at least one described web conference terminal is sent, and to the secondary flow transfer gateway；

The secondary flow transfer gateway, for when receiving the network share data of web server transmission, the network share data are converted into standard shared data, and the standard shared data being converted to is sent to the MCU by the secondary flow passage, the form of the standard shared data is the video format that the hardware conferencing system is supported；

The MCU, for sending the standard shared data that the secondary flow transfer gateway is converted to at least one described VP terminal；

The MCU, is additionally operable to receive the standard shared data that at least one described VP terminal is sent, and sends to the secondary flow transfer gateway standard shared data of at least one VP terminal；

The secondary flow transfer gateway, it is additionally operable to when receiving the standard shared data that the MCU is sent in the secondary flow passage pre-established, sends the MCU standard shared datas sent to the web server during video format for determining the standard shared data that the netmeeting supports the MCU to send；The web server, is additionally operable to broadcast the standard shared data that the MCU is sent at least one described web conference terminal.

28th, system as claimed in claim 27, it is characterised in that

The secondary flow transfer gateway is additionally operable to send token request to obtain the authority of transmission standard shared data to the multipoint control unit MCU of the hardware conferencing system, and the token that the multipoint control unit MCU responds the token request return is received, the token is used to show that the sender of the token request to have the authority of transmission standard shared data.

29th, method as claimed in claim 27, it is characterised in that

The network share data are converted to standard shared data and carry out coding particular by the network share data generation image, the video format supported using the hardware conferencing system is parsed to the image of generation and generate the standard shared data by the secondary flow transfer gateway.

30th, method as claimed in claim 29, characterized in that, the shared data generation image that the secondary flow transfer gateway parses the netmeeting parses the network share data generation image specifically by the client of the built-in netmeeting.