Path setting device and path setting method
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United States of America Patent
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Sep 3, 2013
Grant Date -
Mar 15, 2012
app pub date -
May 11, 2010
filing date -
May 25, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a path setting device capable of setting a distribution path of packets more speedily, when the originator of information is switched. The terminal (100) as the device sets the distribution path of the packets to a communication network which distributes the information from an unspecified terminal to a large number of terminals by transferring the packets. The terminal (100) comprises: an expanded distribution tree calculation unit (140) which calculates the distribution path in accordance with the position, on the communication network, of an origination candidate terminal which is a terminal capable of originating information; and a table setting server unit (150) which sets the calculated distribution path to the communication network. The distribution path calculated by the expanded distribution tree calculation unit (140) comprises: a distribution tree to transfer the packets from a root terminal to the large number of terminals; and a connection tree path to transfer the packets from the origination candidate terminal to the root terminal.
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