发明名称 |
BROADCASTING SYSTEM SWITCHING DISTRIBUTION SYSTEM AND CONTROL METHOD THEREOF |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide broadcasting system and method in which predetermined broadcast information is distributed to multiple user terminals by switching the distribution system of unicast and multi-cast from a distribution server. <P>SOLUTION: The broadcasting system 1 comprises a distribution server 10 having a broadcast transmission function unit 100, and a user terminal 20 having a broadcast reception function unit 200. The broadcast transmission function unit 100 acquires broadcast information from one or more user terminals through a predetermined broadcast information channel, and distributes broadcast information while switching the distribution system of unicast and multi-cast according to the number of simultaneous receptions of information to be distributed from a user terminal. The broadcast reception function unit 200 has a unicast reception unit 203 which receives broadcast information distributed from the distribution server 10 by distribution system of unicast, and a multi-cast reception unit 204 which receives broadcast information distributed from the distribution server 10 by distribution system of multi-cast. <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2011259160(A) |
申请公布日期 |
2011.12.22 |
申请号 |
JP20100131189 |
申请日期 |
2010.06.08 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
SATO HIROYUKI;KANAMARU NAOYOSHI |
分类号 |
H04M3/487;H04M11/08;H04W4/06 |
主分类号 |
H04M3/487 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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