Gateway apparatus

Details Gateway apparatus Gateway apparatus

2011-03-22

2011-03-22

Cho, Hong (Department: 2467)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S392000, C370S401000

Reexamination Certificate

active

07911947

ABSTRACT:
A gateway apparatus relays a data packet only when a network that is connected to the gateway apparatus itself is identical to a network that is connected to a node associated with a sender's address. The sender's address is carried in the data packet received. Even if there are accesses from a plurality of nodes to a certain node (e.g., sensor node), the gateway apparatus can relay the data packet such that data retrieval takes place appropriately and/or such that node control takes place appropriately.

REFERENCES:
patent: 7391782 (2008-06-01), Oguchi
patent: 7489682 (2009-02-01), Kubota
patent: 7583685 (2009-09-01), Ajitomi et al.
patent: 7668115 (2010-02-01), Maruyama et al.
patent: 2005/0163102 (2005-07-01), Higashitaniguchi et al.
patent: 2005/0169176 (2005-08-01), Onoe et al.
patent: 2010/0232444 (2010-09-01), Yazaki
“Echonet Specification, Part 9, Echonet, Gateway Apparatus Specification, Version 321” ( Echonet consortium, Oct. 13, 2005; http://www.echonet.gr.jp/8—kikaku/spec/pdf—v3.21/SpecVer321—09.pdf) p. 1 of specification.

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