CN101771721B - Streaming media data transmission method, system and server - Google Patents
Streaming media data transmission method, system and server Download PDFInfo
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- CN101771721B CN101771721B CN200910076452.7A CN200910076452A CN101771721B CN 101771721 B CN101771721 B CN 101771721B CN 200910076452 A CN200910076452 A CN 200910076452A CN 101771721 B CN101771721 B CN 101771721B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
Abstract
The invention discloses a streaming media data transmission method, a system and a server. The method of the invention includes that: streaming media data is layered to base layer data and higher layer data. The base layer data is transferred to each super-node in a core network, then is transferred by each super-node to user terminals according to the transmission mode of client/ server. The higher layer data is transferred to each super-node and/or incredible node in the core network, then is shared and transferred between each super-node and incredible node to the user terminal according to the P2P transmission mode. The invention utilizes the existing super-node in the core network to realize the service function that similar content is distributed to the network side, the safety and reliability of the transmission of the base layer data are ensured, and as the distribution of the base layer data can be realized without using great amount of CDN servers, the network is modified little, therefore, the implementation is convenient and the cost is low.
Description
Technical field
The present invention relates to wireless IP/ Internet service environment WiiSE network, relate in particular to a kind of streaming media data transmission method, system and server.
Background technology
Wireless IP/ Internet service environment (Wireless IP/Internet Service Environment; WiiSE) network is a kind of new conceptual communication network at present; Be the distributed network of an all-IP, the WiiSE network have the complete IP network structure of flattening, intelligent heterogeneous network access system and based on distributed communication and the information processing framework of P2P and can manage, controlled, the service environment that can run.
Fig. 1 is the sketch map of the present WiiSE core net that proposes; The WiiSE core net is a kind of distributed network; Comprise that some trusted node (also are super node Super Node; The node that operator oneself disposes) forms several P2P cascade nets (Mesh P2P) with other insincere nodes (possibly be the node of other heterogeneous networks) respectively; And each super node all is the subnet representative of Mesh P2P, can adopt the P2P mode to carry out the transmission of distributed business datum between super node and other the insincere nodes.
For the Streaming Media transmission of WiiSE network, corresponding solution is not proposed also at present.
Summary of the invention
The embodiment of the invention provides a kind of streaming media data transmission method, system and server, in order to solve the Streaming Media transmission in the WiiSE network.
A kind of streaming media data transmission method that the embodiment of the invention provides is applied to wireless IP/ Internet service environment WiiSE network, comprising:
Extract copyright information and session key that stream medium data comprises;
With the streaming medium content data in the said stream medium data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data;
Said copyright information, session key and base layer stream media content data are confirmed as base layer data, said raising laminar flow media content data is confirmed as the raising layer data;
Said base layer data is sent to each super node in the core net, is sent to user terminal according to the transmission means of client/server by each super node;
Said raising layer data is sent to each super node and/or insincere node in the core net, by sharing according to the P2P transmission means between said each super node and the insincere node and being sent to user terminal.
Said each super node is sent to user terminal according to the transmission means of client/server, comprising:
Said each super node through the route of putting down in writing in the said safe routing table, is sent to user terminal in said secured user tabulation with said base layer data according to safe routing table and secured user's tabulation of storage.
Share according to the P2P transmission means between said each super node and the insincere node and be sent to user terminal, comprising:
Said super node or insincere node, the transmission manner that adopts P2P other super nodes and/or other insincere nodes from core net obtain and improve layer data and buffer memory;
Said each super node or insincere node are sent to said user terminal with the raising layer data of buffer memory.
The embodiment of the invention also provides a kind of stream medium data transmission system, comprising: streaming media server, super node and insincere node;
Said streaming media server is used to extract copyright information and the session key that stream medium data comprises; With the streaming medium content data in the said stream medium data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data; And said copyright information, session key and base layer stream media content data confirmed as base layer data, said raising laminar flow media content data is confirmed as the raising layer data; And base layer data is sent to each super node; And said raising layer data is sent to each super node or insincere node;
Said super node is used for said base layer data is sent to user terminal according to the transmission means of client/server; And share said raising layer data and be sent to user terminal according to the transmission means of P2P with other super nodes and said insincere node;
Said insincere node is used for sharing said raising layer data and being sent to user terminal according to the transmission means of P2P with other insincere nodes and said super node.
Said super node also is used for according to the safe routing table of storage and secured user's tabulation, through the route of putting down in writing in the said safe routing table, said base layer data is sent to the user terminal in said secured user's tabulation.
Said super node also is used for adopting the transmission manner of P2P to obtain raising layer data and buffer memory from other super nodes of core net and/or insincere node; The raising layer data of buffer memory is sent to said user terminal;
Said insincere node also is used to adopt the transmission manner of P2P to obtain raising layer data and buffer memory from other insincere nodes and/or super node; The raising layer data of buffer memory is sent to said user terminal.
The embodiment of the invention also provides a kind of streaming media server, comprising: hierarchical block and transport module;
Said hierarchical block specifically comprises:
Sub module stored is used for the stored stream media data;
Extract submodule, be used to extract copyright information and the session key that said stream medium data comprises;
Divide submodule, be used for streaming medium content data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data said stream medium data;
Confirm submodule, said copyright information, session key and base layer stream media content data are confirmed as base layer data; Said raising laminar flow media content data is confirmed as the raising layer data;
Said transport module is used for said base layer data is sent to user terminal through each super node of core net according to the transmission means of client/server; And with said raising layer data through sharing according to the P2P transmission means between each super node in the said core net and/or the insincere node and being sent to user terminal.
The beneficial effect of the embodiment of the invention is following:
The streaming media data transmission method that the embodiment of the invention provides, system and server; Stream medium data is carried out layering to be handled; The base layer data of dividing is sent to user terminal through each super node in the core net according to the mode of client/server, will improves layer data through shared and be sent to user side between each super node of core net and the insincere node according to the P2P mode.The streaming media data transmission method that the embodiment of the invention provides, system and server; Existing super node is realized the function of similar content distributing network end service in the use core net; Not only reduced of the time-delay of transmission base layer data transmission sources to end; Guaranteed base layer data transmission safety reliability, and since no longer need dispose a large amount of content distributing networks (Content Delivery Network, CDN) server can be realized the distribution of base layer data; Little to network change, implement to make things convenient for cost low.In addition; Because in the embodiment of the invention; Improve the mode of layer data, made full use of the advantage that P2P carries out transfer of data through sharing according to the P2P mode between each super node and the insincere node, effectively balance offered load; Improved the network service efficiency, also more high-quality and speed stream medium data broadcast faster experience are provided simultaneously for the user.
Description of drawings
Fig. 1 is the structural representation of existing WiiSE core net;
The streaming media data transmission method flow chart that Fig. 2 provides for the embodiment of the invention;
Fig. 3 connects sketch map for the streaming media data transmission method network that the embodiment of the invention provides;
The stream medium data transmission system structural representation that Fig. 4 provides for the embodiment of the invention;
The streaming media server structural representation that Fig. 5 provides for the embodiment of the invention;
The structural representation of hierarchical block in the streaming media server that Fig. 6 provides for the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of streaming media data transmission method provided by the invention, system and server are carried out detailed explanation with specific embodiment.
The streaming media data transmission method that the embodiment of the invention provides is applied to wireless IP/ Internet service environment WiiSE network.As shown in Figure 2, may further comprise the steps:
Step S201, streaming media server carry out layering to stream medium data, are divided into base layer data and improve layer data.
Among this step S201, streaming media server carries out layering with original stream medium data to be handled, and original stream medium data comprises sensitive information and streaming medium content data.When carrying out the layering processing, (Multiple Description Coding, mode MDC) is carried out layering to stream medium data for example can to adopt multiple description coding.
The method of concrete layering is following:
Streaming media server extracts earlier and comprises sensitive information (copyright information and session key etc.) in the primary flow media data;
Streaming media server is with the streaming medium content data in the primary flow media data then, and (Quality of Service, height QoS) are divided into raising laminar flow media content data and base layer stream media content data according to service quality.
Specifically, be exactly that the streaming medium content data are as improving the laminar flow media content data preferably with visual quality, the streaming medium content data that visual quality is lower are as the base layer stream media content data.
Streaming media server is confirmed as base layer data with the copyright information that extracts, session key and the base layer stream media content data that marks off; The raising laminar flow media content data that marks off is confirmed as the raising layer data.
Step S202, streaming media server are sent to each super node in the core net with base layer data, are sent to user terminal by each super node according to the transmission means of client/server.
Can find out from the structure of WiiSE core net shown in Figure 1; Some trusted node (also being super node) have been disposed in the WiiSE core net; For each super node; It just can be sent to user terminal according to the transmission method of existing client/server after having received the base layer data of Streaming Media transmission.
In this step S202, the super node in the embodiment of the invention has the function of the end server among the similar CDN; That is to say; Streaming Media can be distributed to the super node nearest with user side with basic layer data through being deployed in each super node in the WiiSE core net, not only can reduce the time-delay of source to end; And, improved the reliability of base layer data (comprising sensitive informations such as copyright information, session key) transmission because super node all is trusty.The function of existing super node improved accordingly getting final product, implement convenient and cost lower.
In order to guarantee the base layer data safety of transmission further, in super node, also need maintenance safe routing table and secured user tabulation.
The several of putting down in writing in the safe routing table is by the fail safe on the path that has ensured the base layer data transmission.The secured user tabulates and has put down in writing the information through the user terminal of this super node authentication, has ensured the true and reliable property that receives the user identity of base layer data.
The route of super node through putting down in writing in the safe routing table is sent to the user terminal in secured user's tabulation with base layer data.When not through the user terminal of authentication when super node initiates to obtain the request of stream medium data, super node can not send any data to it.
Super node also need upgrade the safe routing table of maintenance and the content of secured user's tabulation constantly according to the result of authentication and authentication.
Step S203, streaming media server will improve layer data and be sent to each super node and/or insincere node in the core net, by sharing according to the P2P transmission means between said each super node and the insincere node and being sent to user terminal.
Streaming media server can be selected to improve layer data and send super node and/or insincere node in the WiiSE core net to.
As can beappreciated from fig. 1, each super node in the WiiSE core net respectively and formed P2P Mesh network between the insincere node, super node and insincere node can adopt the transmission means of P2P to carry out data sharing.
When user terminal when super node or insincere node initiate to obtain the request of stream medium data; Super node or insincere node can initiate to obtain the request that improves layer data from other super nodes or insincere node; Adopt the P2P mode to get access to corresponding raising layer data, return to user terminal again.
Perhaps for some hot point resource; After streaming media server will improve layer data and be handed down to the WiiSE core net; Even there be not each super node or the insincere node of user terminal in the WiiSE core net to send the request of obtaining stream medium data; Also carry out the transfer of data of P2P mode between each super node in the WiiSE core net and the insincere node each other; And the raising layer data that will get access to carries out buffer memory, and when user terminal initiated to obtain the request of stream medium data, directly the raising layer data with buffer memory was back to user terminal.
Streaming media server has adopted each super node of utilizing in the WiiSE core net respectively and carry out the P2P transmission means between the insincere node and share the mode that layer data is resent to user side that improves; Made full use of the advantage of P2P transmission means; Effectively balance offered load; Improved the network service efficiency, also more high-quality and speed stream medium data broadcast faster experience are provided simultaneously for the user.
Separate between step S102 in the streaming media data transmission method that the embodiment of the invention provides and the step S103, there is not strict time order and function order, be merely and distinguished and carry out the numbering of step.
Fig. 3 is that the streaming media data transmission method network that the embodiment of the invention provides connects sketch map.Among Fig. 3, solid line is partly represented base layer data, and the dotted portion representative improves layer data.
According to the streaming media data transmission method that the embodiment of the invention provides, the embodiment of the invention also provides a kind of stream medium data transmission system, and is as shown in Figure 4, comprising: streaming media server 401, super node 402 and insincere node 403; Wherein:
Streaming media server 401 is used for stream medium data is carried out layering, is divided into base layer data and improves layer data; And base layer data is sent to each super node; And will improve layer data and be sent to each super node or insincere node;
Streaming media server 401 in the stream medium data transmission system that the embodiment of the invention provides also is used to extract copyright information and the session key that stream medium data comprises; With the streaming medium content data in the stream medium data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data; And copyright information, session key and base layer stream media content data confirmed as base layer data, will improve the laminar flow media content data and confirm as the raising layer data.
The embodiment of the invention also provides a kind of streaming media server, and is as shown in Figure 5, comprising: hierarchical block 501 and transport module 502;
Hierarchical block 501 is used for stream medium data is carried out layering, is divided into base layer data and improves layer data;
Transport module 502 is used for base layer data is sent to user terminal through each super node of core net according to the transmission means of client/server; And will improve layer data through sharing according to the P2P transmission means between each super node in the said core net and/or the insincere node and being sent to user terminal.
Hierarchical block in the streaming media server that the embodiment of the invention provides, as shown in Figure 6, specifically can also comprise: sub module stored 601, extraction submodule 602, division submodule 603 and definite submodule 604;
Sub module stored 601 is used for the stored stream media data;
Extract submodule 602, be used to extract copyright information and the session key that stream medium data comprises;
Divide submodule 603, be used for streaming medium content data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data stream medium data;
Confirm submodule 604, copyright information, session key and base layer stream media content data are confirmed as base layer data; To improve the laminar flow media content data and confirm as the raising layer data.
The streaming media data transmission method that the embodiment of the invention provides, system and server; Stream medium data is carried out layering to be handled; The base layer data of dividing is sent to user terminal through each super node in the core net according to the mode of client/server, will improves layer data through shared and be sent to user side between each super node of core net and the insincere node according to the P2P mode.The streaming media data transmission method that the embodiment of the invention provides, system and server; Existing super node is realized the function of similar content distributing network end service in the use core net; Not only reduced of the time-delay of transmission base layer data transmission sources, guaranteed base layer data transmission safety reliability to end, and owing to no longer need dispose the distribution that a large amount of CDN servers can be realized base layer data; Little to network change, implement to make things convenient for cost low.In addition; Because in the embodiment of the invention; Improve the mode of layer data, made full use of the advantage that P2P carries out transfer of data through sharing according to the P2P mode between each super node and the insincere node, effectively balance offered load; Improved the network service efficiency, also more high-quality and speed stream medium data broadcast faster experience are provided simultaneously for the user.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. a streaming media data transmission method is applied to wireless IP/ Internet service environment WiiSE network, it is characterized in that, comprising:
Extract copyright information and session key that stream medium data comprises;
With the streaming medium content data in the said stream medium data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data;
Said copyright information, session key and base layer stream media content data are confirmed as base layer data, said raising laminar flow media content data is confirmed as the raising layer data;
Said base layer data is sent to each super node in the core net, is sent to user terminal according to the transmission means of client/server by each super node;
Said raising layer data is sent to each super node and/or insincere node in the core net, by sharing according to the P2P transmission means between said each super node and the insincere node and being sent to user terminal.
2. the method for claim 1 is characterized in that, said each super node is sent to user terminal according to the transmission means of client/server, comprising:
Said each super node through the route of putting down in writing in the said safe routing table, is sent to user terminal in said secured user tabulation with said base layer data according to safe routing table and secured user's tabulation of storage.
3. method as claimed in claim 2 is characterized in that, shares according to the P2P transmission means between said each super node and the insincere node and is sent to user terminal, comprising:
Said super node or insincere node, the transmission manner that adopts P2P other super nodes and/or other insincere nodes from core net obtain and improve layer data and buffer memory;
Said each super node or insincere node are sent to said user terminal with the raising layer data of buffer memory.
4. a stream medium data transmission system is characterized in that, comprising: streaming media server, super node and insincere node;
Said streaming media server is used to extract copyright information and the session key that stream medium data comprises; With the streaming medium content data in the said stream medium data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data; And said copyright information, session key and base layer stream media content data confirmed as base layer data, said raising laminar flow media content data is confirmed as the raising layer data; And base layer data is sent to each super node; And said raising layer data is sent to each super node or insincere node;
Said super node is used for said base layer data is sent to user terminal according to the transmission means of client/server; And share said raising layer data and be sent to user terminal according to the transmission means of P2P with other super nodes and said insincere node;
Said insincere node is used for sharing said raising layer data and being sent to user terminal according to the transmission means of P2P with other insincere nodes and said super node.
5. system as claimed in claim 4; It is characterized in that; Said super node also is used for according to the safe routing table of storage and secured user's tabulation, through the route of putting down in writing in the said safe routing table, said base layer data is sent to the user terminal in said secured user's tabulation.
6. system as claimed in claim 4 is characterized in that, said super node also is used for adopting the transmission manner of P2P to obtain raising layer data and buffer memory from other super nodes of core net and/or insincere node; The raising layer data of buffer memory is sent to said user terminal;
Said insincere node also is used to adopt the transmission manner of P2P to obtain raising layer data and buffer memory from other insincere nodes and/or super node; The raising layer data of buffer memory is sent to said user terminal.
7. a streaming media server is characterized in that, comprising: hierarchical block and transport module;
Said hierarchical block specifically comprises:
Sub module stored is used for the stored stream media data;
Extract submodule, be used to extract copyright information and the session key that said stream medium data comprises;
Divide submodule, be used for streaming medium content data, be divided into according to the height of Qos and improve laminar flow media content data and base layer stream media content data said stream medium data;
Confirm submodule, said copyright information, session key and base layer stream media content data are confirmed as base layer data; Said raising laminar flow media content data is confirmed as the raising layer data;
Said transport module is used for said base layer data is sent to user terminal through each super node of core net according to the transmission means of client/server; And with said raising layer data through sharing according to the P2P transmission means between each super node in the said core net and/or the insincere node and being sent to user terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910076452.7A CN101771721B (en) | 2009-01-04 | 2009-01-04 | Streaming media data transmission method, system and server |
| PCT/CN2010/000013 WO2010075813A1 (en) | 2009-01-04 | 2010-01-04 | Method, system and server for transmitting stream media data |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910076452.7A CN101771721B (en) | 2009-01-04 | 2009-01-04 | Streaming media data transmission method, system and server |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056403A (en) * | 2007-04-28 | 2007-10-17 | 西安交通大学 | Design method of P2P network transmission system architecture with the telescopic video coding |
| CN101094387A (en) * | 2006-06-19 | 2007-12-26 | 北京北大方正电子有限公司 | Control system and method for transferring content on network |
| US20080162410A1 (en) * | 2006-12-27 | 2008-07-03 | Motorola, Inc. | Method and apparatus for augmenting the dynamic hash table with home subscriber server functionality for peer-to-peer communications |
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| CN100558042C (en) * | 2007-09-29 | 2009-11-04 | 华中科技大学 | A kind of P2P live broadcasting method based on super node |
| CN101267293B (en) * | 2008-04-18 | 2011-03-30 | 清华大学 | Stream media hidden communication method based on hierarchical model |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101094387A (en) * | 2006-06-19 | 2007-12-26 | 北京北大方正电子有限公司 | Control system and method for transferring content on network |
| US20080162410A1 (en) * | 2006-12-27 | 2008-07-03 | Motorola, Inc. | Method and apparatus for augmenting the dynamic hash table with home subscriber server functionality for peer-to-peer communications |
| CN101056403A (en) * | 2007-04-28 | 2007-10-17 | 西安交通大学 | Design method of P2P network transmission system architecture with the telescopic video coding |
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| WO2010075813A1 (en) | 2010-07-08 |
| CN101771721A (en) | 2010-07-07 |
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