Electrical computers and digital processing systems: multicomput – Star or tree computer networking
Reexamination Certificate
2008-03-26
2010-11-16
Neurauter, Jr., George C (Department: 2443)
Electrical computers and digital processing systems: multicomput
Star or tree computer networking
C370S256000, C370S407000, C709S238000
Reexamination Certificate
active
07836210
ABSTRACT:
In order that a loop does not occur when switching upstream terminal apparatus, to provide an information distribution system capable of preemptively detecting a distribution route loop, and avoiding the loop, a terminal apparatus and a program used in the same system, as well as a loop connection avoidance method.A terminal apparatus B which has received loop connection detection information from upstream determines whether or not a downstream terminal apparatus of a control path which is not a distribution route along which contents information is flowing, and a source of the loop connection detection information match and, in the event that they match, determines that a loop will occur. By this means, it is possible to determine in advance that a loop will occur, before switching an upstream connection destination. Also, substitute upstream terminal apparatus search information is transmitted in a downstream direction from terminal apparatus B0and B1, which are second nodes, and a terminal apparatus B which has received the substitute upstream terminal apparatus search information, but has not received the loop connection detection information, is made a substitute upstream apparatus. By switching to the substitute upstream apparatus, it is possible to avoid the loop.
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Brother Kogyo Kabushiki Kaisha
Neurauter, Jr. George C
Oliff & Berridg,e PLC
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