Flow-media direct-broadcasting P2P network method based on conversation initialization protocol
Title：
Flow-media direct-broadcasting P2P network method based on conversation initialization protocol
Application Number：
 200610011473
Application Date：
 2006/03/10
Announcement Date：
 2006/08/09
Pub. Date：
Publication Number：
 1816053
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H04L 29/06
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Huang Yongfeng, Liu Hui, He Jie, Li Xing
Key Words：
 Flow-media direct-broadcasting P2P network, conversation initialization protocol
Abstract：
 The invention includes programs at client end, programs at SIP server end, program for selecting peer-to-peer bodies, and programs at stream media server, which are setup at client end, SIP server, expanded media server, and stream media server in sequence. Based on SIP protocol, using P2P network, client end requests program from SIP server. The SIP server forwards the request to an expanded media server. The expanded media server selects best program source, which can be other client or a stream media server. Based on address of the program source, client end can down load program of stream media, and sends information of buffering program to the expanded media server. Client end or stream media server also can send information of changing node state to the expanded media server in order to cause refreshing database of media information. Advantages are: small time delay, small bandwidth consumption, and good audio/video effect.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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