CN1984308A - Video-frequency conference system, agent host and method - Google Patents
Video-frequency conference system, agent host and method Download PDFInfo
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- CN1984308A CN1984308A CN 200510131701 CN200510131701A CN1984308A CN 1984308 A CN1984308 A CN 1984308A CN 200510131701 CN200510131701 CN 200510131701 CN 200510131701 A CN200510131701 A CN 200510131701A CN 1984308 A CN1984308 A CN 1984308A
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Abstract
The system comprises: a first mobile device for getting a first image; a second mobile device for communicating with the first mobile device by using a first network protocol, the first mobile device and second mobile device have video exchange function; a first computer for getting a second image; a second computer for getting a third image, the second computer communicates with the firs computer by using a second network protocol, and both have video exchange function; a proxy host machine for connecting to the first computer and second computer by using second network protocol, and connecting to the second mobile device by using a third network protocol. The proxy host machine can combine a second image and a third image into a fourth image, and transmits the fourth image to the first mobile device through the second mobile device.
Description
Technical field
The invention relates to a kind of system, proxy and method thereof of video conference, particularly, a kind of system, proxy and method thereof that video conference is provided in heterogeneous protocol environment.
Background technology
3G mobile communication networking (cellular network) is though video conference service of providing (for example using the video telephony protocols 3G-324M in the communication network) is provided at present, but mainly be man-to-man video conference, and the video conference service that provides in many ways is not provided all for majority of network and mobile phone.In addition, the popularity of 3G headphone and scope that service covered thereof are still limited.If set up multipart video-meeting jointly by a plurality of 3G headphones, its call rate must be not cheap.Therefore, the function that be popularly reaches multipart video-meeting by the mobile communication networking will be had any problem.Yet,, also excite wide spread interest at the research of this problem in view of the demand of video conference increases day by day.For instance, U.S. Patent Publication No. 2003/0147381 has disclosed a kind of use bridge-type and divides the work (bridged TDM) and package bus (packet bus) for a long time and reach the transmission of in many ways sound, video and data.
In fact, the covering scope of present wireless lan (wlan) is quite extensive, and it is also universal day by day to have the notebook computer or a telephone device of WLAN (wireless local area network) access capability.Therefore, the video communication of IP based network obtains general application and development, and its framework agreement also produced multiple standards, wherein H.323 to account for the leading position in market.H.323 standard is formed by multinomial relevant criterion agreement, comprise the call signal agreement H.225, the control signal agreement H.245 and real-time communication agreement (real-timetransport protocol (RTP)) etc.The video conference of IP based network is to follow video conference standard H.323 and carry out the audio-visual transmission of (real time) in real time.
Therefore, if the method for a kind of visual telephone in conjunction with internet (Internet) (videotelephony) with the visual telephone of communication network (cellular network) can be provided, can set up video conference in many ways more convenient and more economically.
Summary of the invention
In view of the existing in prior technology problem, one of characteristic of the present invention is, by the connection of proxy to the device in the environment of different agreement, provides a kind of video conference image conversion regime and using method thereof in heterogeneous environment.
A characteristic more of the present invention is, the visual telephone information on the internet is combined, to reach the video conference capabilities under the heterogeneous environment with the visual telephone information of wireless telecommunications networking (cellular).
According to an aspect of the present invention, provide a kind of video conferencing system, comprised first mobile device, second mobile device, first computer installation, second computer installation and proxy.First mobile device and second mobile device are with the mutual communication of first procotol, first computer installation and second computer installation are with the mutual communication of second procotol, and proxy is to connect with first computer installation and the second computer load and be connected with second mobile device with the 3rd procotol with second procotol.First mobile device is to be used to obtain first image, and first computer installation is to be used to obtain second image, and second computer installation is to be used to obtain the 3rd image, and wherein second image and the 3rd image are to be integrated into the 4th image by proxy.The 4th image transfers to first mobile device by second mobile device, and first image is received by second mobile device and transfers to first computer installation and second computer installation by second procotol.
According to a further aspect in the invention, the proxy that is used to set up video conference comprises: buffer unit, separate decoder and device sound mixing.
According to a further aspect in the invention, provide a kind of method of video conference, comprised following steps: obtained first image with first mobile device; Second mobile device and first mobile device are by the mutual communication of first procotol; Obtain second image with first computer installation; Obtain the 3rd image with second computer installation; First computer installation and second computer installation are by the mutual communication of second procotol; Proxy connects by second procotol and first computer installation and the second computer load, and is connected with second mobile device by the 3rd procotol; Proxy integrates second image and the 3rd image is the 4th image, and transfers to first mobile device; Proxy receives first image by second mobile device, and transfers to first computer installation and second computer installation respectively.
According to a further aspect in the invention, provide a kind of proxy, can set up the connection between multiple heterogeneous network, this proxy comprises: first access device is used for being connected with the mobile device of first network; And second access device, be used for being connected with the computer installation of second network.Computer installation in second network can be connected with the 3rd network by proxy.
Description of drawings
Fig. 1 has illustrated the video conferencing system under a kind of heterogeneous environment according to one embodiment of the invention;
Fig. 2 illustrates the flow chart that is established to the program between the end of video conference according to one embodiment of the invention; And
Fig. 3 is according to one embodiment of the invention, illustrated be used to provide connect between multiple heterogeneous network one act on behalf of main frame.
Graphic element numbers explanation
100,200,300,500,600,700 network systems
110,210,510 base stations
400,800 proxies
120,140,520,540 mobile devices
220,240,260,620,640 computer installations
122,222,242,262 images
802,804 access devices
Embodiment
In order to reach the aforesaid characteristic of the present invention, function, disclose a kind of system, proxy and method thereof of video conference.In order to make narration of the present invention more detailed and complete, can and cooperate that Fig. 1's to Fig. 3 is graphic with reference to following description.
Fig. 1 is according to one embodiment of the invention, has illustrated the video conferencing system under a kind of heterogeneous environment.First network system 100 comprises first mobile device 120 and second mobile device 140 that can obtain first image 122, it has the video exchange function respectively and communicates with one another with first procotol by base station 110, and obtaining of image can be provided with camera such as camera or video camera etc. in first mobile device, 120 inside.For instance, first mobile device 120 and second mobile device 140 can be the 3G mobile phone, carry out video conference with the 3G-324M agreement.Second network system 200 comprises first computer installation 220, second computer installation 240 and the 3rd computer installation 260 that can obtain second image 222, the 3rd image 242 and the 4th image 262 respectively, and it has the video exchange function respectively and communicates with one another with second procotol.For instance, first computer installation 220, second computer installation 240 and the 3rd computer installation 260 can be general desktop PC or notebook computer, with the mutual communication of wired or wireless local area network (LAN) (WLAN) agreement.Proxy 400 is with second procotol and first computer installation 220 and 240 communications of second computer installation.Proxy 400 also can by with being connected of internet (Internet) 300, and by 260 communications of WLAN (wireless local area network) bridger (WLAN AP) the 210 and the 3rd computer installation.In addition, proxy 400 also is connected with second mobile device 140 in first network system 100 with the 3rd procotol.For instance, the 3rd procotol can be host-host protocol V.80 (V.80 being the crossfire host-host protocol (streaming protocol) between modulator-demodulator and computer installation) video conference is provided.The realization of the image-acquisition functions of first mobile device 120, first computer installation 220, second computer installation 240 and the 3rd computer installation 260 can be for example for the installing video cameras in wherein.
In one embodiment of this invention, when user's desire of first computer installation 220 starts video conference, transmit video call (video call) and give proxy 400, request starts video conference.Because first procotol is different with the defined coding and decoding of second procotol (codecs), for example picture format resolution or phonetic matrix are not equal, therefore proxy 400 is just carried out the coding and decoding conversion (codec transform) of audio/video between first procotol and second procotol after receiving this request.When carrying out the conversion of coding and decoding, proxy 400 uses AT instruction (AT command) and calls out first mobile device 120 by second mobile device 140.When first effectively this calling of response of mobile device 120, be connected with second mobile device 140 by first procotol, after connecting by second mobile device 140 and the 3rd procotol and proxy 400 again, proxy 400 can be notified first computer installation 220, so the video conference that first computer installation 220 and first mobile device are 120 promptly starts.After this video conference started, other was connected to the computer installation of proxy 400, as second computer installation 240 and the 3rd computer installation 260, also can ask to add this video conference.Proxy 400 can use known authentication mechanism to agree or refuse the access of other computer installation, does not repeat them here.For example, the request of can transmitting respectively of second computer installation 240 and the 3rd computer installation 260 adds the message of this video conference and gives proxy 400, if proxy 400 is agreed these requests, and after finishing the conversion of coding and decoding, proxy 400 just invites second computer installation 240 and the 3rd computer installation 260 to add these video conferences, and sets up the video conference of 120 of first computer installation 220, second computer installation 240, the 3rd computer installation 260 and first mobile devices.
In another embodiment of the present invention, when user's desire of first mobile device 120 starts a video conference, transmit video phone call (video telephony call) by first network system 100 and give second mobile device 140, start video conference with indication proxy 400.When act on behalf of main frame 400 receive this indication after, to the message of all connected computer installation broadcast video Conference Callings.If first computer installation 220 is these message of response effectively, this video phone call is accepted, and has started the video conference of 120 of first computer installation 220 and first mobile devices.Proxy 400 also can be carried out the coding and decoding conversion of audio/video between aforesaid first procotol and second procotol, and other computer installation also can add this video conference as described above.
In the process of video conference, first image 122, second image 222, the 3rd image 242 and the 4th image 262 that first mobile device 120, first computer installation 220, second computer installation 240 and the 3rd computer installation 260 are obtained respectively are transferred into proxy 400.Therefore, proxy need have the function of image integration, participates in all members' of this video conference sound and image with synchronization (sync).Proxy 400 can pass through second procotol, first image 122 is transferred to first computer installation 220, second computer installation 240 and the 3rd computer installation 260 respectively, that is proxy 400 carries out video conference as agency's first mobile device 120 and first computer installation 220, second computer installation 240 and the 3rd computer installation 260 based on second procotol; Proxy 400 is integrated into second image 222, the 3rd image 242 and the 4th image 262 the 4th image (not being shown among the figure) and transfers to first mobile device 120 in addition, and promptly proxy 400 carries out man-to-man video conference based on first procotol.According to another embodiment of the present invention, after proxy 400 can be incorporated into same video frame (video frame) with first image 122, second image 222, the 3rd image 242 and the 4th image 262 earlier, send first mobile device 120, first computer installation 220, second computer installation 240 and the 3rd computer installation 260 more respectively to, promptly proxy 400 carries out man-to-man video conference based on first procotol and second procotol to each communication main body agency.
In addition, in the process of video conference, the member who participates in this meeting may produce delay (delay) phenomenon when communication mutually, and therefore, good for the quality of guaranteeing video, proxy 400 can provide the function of buffering (buffering).In the process of video conference, the sound that proxy 400 receives from all members that participate in this meeting ceases frequently, and therefore, good for the quality of guaranteeing sound crossfire (audio streaming), proxy 40 can provide the function of audio mixing (audio mixer).
In the video conference process of 120 of first computer installation 220, second computer installation 240, the 3rd computer installation 260 and first mobile devices, if the user of first computer installation 220 desires to leave this video conference, can transmit the request of leaving meeting and give proxy 400, and agree to leave this video conference after this request at proxy 400.After last member who participates in this video conference leaves, proxy 400 this video conference that just terminates.At this moment, being connected also of first procotol of first mobile device 120 and 140 of second mobile devices interrupted thereupon, gets back to idle state (idle state).
In the above-described embodiment, only use takes the cost of the phone call of a mobile device, can reach the function of multipart video-meeting, and is not subjected to the restriction in time and place.
Comprehensive the above, Fig. 2 is the flow chart that illustrates according to one embodiment of the invention, the program between the end of being established to of display video meeting.In step S200, between the proxy and second mobile device, connect, its method for building up can for example use V.80 agreement, and wherein second mobile device and first mobile device are with mobile network protocol (for example 3G-324M agreement) communication mutually.In step S202, between proxy and a plurality of computer installation, connect, its method for building up can for example use wireless local area network protocol or use the internet by the WLAN (wireless local area network) bridger.If there is user's desire of first computer installation to start video conference, then program proceeds to step S204, and first computer installation transmits the request that starts video conference and gives proxy.Proxy is after receiving this request, and program proceeds to step S206, and proxy is called out first mobile device by second mobile device.Call out when first mobile device effectively responds this, proxy promptly starts the video conference between first computer installation and first mobile device, shown in step S208.If it is the user of first mobile device that desire starts video conference person, then program proceeds to step S210 from step S202, and first mobile device transmits the request that starts video conference by second mobile device and gives proxy.Proxy is after receiving this request, and program proceeds to step S212, and proxy broadcast video meeting message is given all connected computer installations.If there is computer installation effectively to respond this message, proxy promptly starts the video conference between this computer installation and first mobile device, shown in step S208.After video conference started, in step S214, other was connected with proxy and does not add the computer installation of this video conference as yet, can ask to add this video conference respectively, and proxy can use known authentication mechanism to agree or refuse this request.In step S216, proxy is carried out the coding and decoding conversion of the audio/video between heterogeneous networks and the integration of image in the process of video conference, and the function of buffering and audio mixing is provided.In step S218, proxy is given in the member of arbitrary this video conference of the participation request of can transmitting, and this video conference is left in request, agrees can leave this video conference after this request at proxy.After last member who participates in this video conference left, program proceeded to step S220, and proxy is closed this video conference.
Fig. 3 is according to another embodiment of the present invention, illustrated to be used to provide the proxy 800 that connects between multiple heterogeneous network.First network system 500 comprises first mobile device 520 and second mobile device, 540, the second network systems 600 comprise first computer installation 620 and second computer installation 640.Proxy 800 connects with first access device 802 and first network system 500, base station 510 by being connected again with the 3rd network system 700, proxy 800 can be set up and being connected of 700 of the 3rd network systems, in addition, proxy 800 is also set up communication with second access device 804 and first computer installation 620 and 640 of second computer installations.In one embodiment, first network system 500 is mobile communication networking (cellular network), and second network system 600 is a wireless lan (wlan), and the 3rd network system 700 is the internet.But because proxy 800 by with being connected and access the Internet 700 of mobile communication networking 500, first computer installation 620 in the WLAN 600 and second computer installation 640 by with being connected of proxy 800, also can be connected to internet 700.Therefore proxy 800 can be used as the data transaction proxy (data transfer proxy server) of mobile communication networking 500 and WLAN 600.In addition, the proxy 800 among Fig. 3 also can be used for setting up the video conference of 600 of mobile communication networking 500 and WLAN, as previously mentioned.In the video conference process, proxy 800 can be carried out following function: the integration of video frame between mobile device and computer installation conversion (video frame transform), image, provide the coding and decoding of buffering, audio/video to change and provide audio mixing etc.
The above is preferred embodiment of the present invention only, is not to be used to limit claim scope of the present invention; All other do not break away from the equivalence of being finished under the disclosed spirit and changes or modification, all should be included in the described claim scope.
Claims (19)
1. video conferencing system comprises:
First mobile device is used to obtain first image;
Second mobile device, with first procotol and the mutual communication of this first mobile device, this first mobile device and this second mobile device have the video exchange function;
First computer installation is used to obtain second image;
Second computer installation is used to obtain the 3rd image, and this second computer installation is with second procotol and the mutual communication of this first computer installation, and this first computer installation and this second computer installation have the video exchange function; And
Proxy, connect with this second procotol and this first computer installation and this second computer load, be connected with this second mobile device with the 3rd procotol, this proxy integrates this second image and the 3rd image is the 4th image, and via this second mobile device the 4th image is transferred to this first mobile device.
2. system according to claim 1, wherein this proxy receives this first image that is transmitted by this first mobile device by this second mobile device, and this first image is transferred to this first computer installation and this second computer installation respectively by this second procotol.
3. system according to claim 2, wherein this proxy is set up video conference by transmitting this first image and the 4th image, and this proxy also comprises:
Buffer unit is used for providing buffering to this first delay that is caused during with the mutual communication of this second computer installation with this second mobile device and this first;
Separate decoder, be used to provide the function of the coding and decoding conversion of audio/video; And
Device sound mixing is used to provide the function of audio mixing.
4. system according to claim 1, wherein this first procotol is the 3G-324M agreement.
5. system according to claim 1, wherein this second procotol is Internet Protocol and/or protocol of wireless local area network.
6. system according to claim 1, wherein the 3rd procotol is agreement V.80.
7. method that video conference is provided comprises following steps:
Obtain first image with first mobile device;
By first procotol, make second mobile device and the mutual communication of this first mobile device, this first mobile device and this second mobile device have the video exchange function;
Obtain second image with first computer installation;
Obtain the 3rd image with second computer installation;
By second procotol, make this first computer installation and the mutual communication of this second computer installation, this first computer installation and this second computer installation have the video exchange function;
By this second procotol, proxy is connected with this first computer installation and this second computer installation;
By the 3rd procotol, this proxy is connected with this second mobile device; And
By this proxy, integrating this second image and the 3rd image is the 4th image, and via this second mobile device the 4th image is transferred to this first mobile device.
8. method according to claim 7 also comprises following steps:
By this second mobile device, this proxy receives this first image that this first mobile device is transmitted; And
By this second procotol, this proxy transfers to this first computer installation and this second computer installation respectively with this first image.
9. method according to claim 8, wherein this proxy is set up video conference by transmitting this first image and the 4th image, and this proxy also comprises:
Buffer unit is used for providing buffering to this first delay that is caused during with the mutual communication of this second computer installation with this second mobile device and this first;
Separate decoder, be used to provide the function of the coding and decoding conversion of audio/video; And
Device sound mixing is used to provide the function of audio mixing.
10. method according to claim 7, wherein this first procotol is the 3G-324M agreement.
11. method according to claim 7, wherein this second procotol is Internet Protocol and/or protocol of wireless local area network.
12. method according to claim 7, wherein the 3rd procotol is agreement V.80.
13. one kind is used to the proxy that connects between multiple heterogeneous network is provided, comprises:
First access device is used for being connected with second mobile device, and this second mobile device is with first procotol and the mutual communication of first mobile device; And
Second access device is used for being connected with first computer installation and second computer installation by second procotol, and wherein this first computer installation is with this second procotol and the mutual communication of this first computer installation;
Wherein, this proxy can be connected with the 3rd network by this second mobile device, and this first can be connected with the 3rd network by this proxy with this second computer installation.
14. proxy according to claim 13 receiving one of them requirement from this first mobile device, this first computer installation or this second computer installation when starting the request of video conference, is set up video conference.
15. proxy according to claim 14 also comprises:
Buffer unit is used for providing buffering to this first delay that is caused during with the mutual communication of this second computer installation with this second mobile device and this first;
Separate decoder, be used to provide the function of the coding and decoding conversion of audio/video; And
Device sound mixing is used to provide the function of audio mixing.
16. proxy according to claim 13, wherein this first procotol is the 3G-324M agreement.
17. proxy according to claim 13, wherein this second procotol is a protocol of wireless local area network.
18. proxy according to claim 13, wherein this first access device is interface V.80.
19. proxy according to claim 13, wherein the 3rd procotol is an Internet Protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131701 CN1984308A (en) | 2005-12-13 | 2005-12-13 | Video-frequency conference system, agent host and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510131701 CN1984308A (en) | 2005-12-13 | 2005-12-13 | Video-frequency conference system, agent host and method |
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| CN1984308A true CN1984308A (en) | 2007-06-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018738A1 (en) * | 2007-08-09 | 2009-02-12 | Huawei Technologies Co., Ltd. | A method, related service device and system for providing video content |
| CN101340547B (en) * | 2007-07-04 | 2010-06-02 | 广达电脑股份有限公司 | 3 side video conference system |
-
2005
- 2005-12-13 CN CN 200510131701 patent/CN1984308A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340547B (en) * | 2007-07-04 | 2010-06-02 | 广达电脑股份有限公司 | 3 side video conference system |
| WO2009018738A1 (en) * | 2007-08-09 | 2009-02-12 | Huawei Technologies Co., Ltd. | A method, related service device and system for providing video content |
| CN101365096B (en) * | 2007-08-09 | 2012-05-23 | 华为技术有限公司 | Method for providing video content, related service apparatus and system |
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