GATEWAY DEVICE, NETWORK SYSTEM, COMMUNICATION METHOD, AND PROGRAM

GATEWAY DEVICE, NETWORK SYSTEM, COMMUNICATION METHOD, AND PROGRAM

PROBLEM TO BE SOLVED: To transfer data transmitted from an information appliance communicable only in a closed network also to other closed networks. SOLUTION: A gateway device performs encapsulation to local data, by which communication to an open network becomes possible, receives encapsulated dat...

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Hauptverfasser: OBINATA NOBUAKI, TAIRA SHIGEKI, MORIBE HIROTAKA
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator OBINATA NOBUAKI
TAIRA SHIGEKI
MORIBE HIROTAKA
description PROBLEM TO BE SOLVED: To transfer data transmitted from an information appliance communicable only in a closed network also to other closed networks. SOLUTION: A gateway device performs encapsulation to local data, by which communication to an open network becomes possible, receives encapsulated data transmitted from a first other gateway device connected to the open network, releases encapsulation of the encapsulated data to extract the local data, transmits the local data extracted from the encapsulated data into a closed network in which a proxy device itself exists, stores transfer destination information which is the information specifying a second other gateway device connected to the open network, and transmits the encapsulated data received from the first other gateway device to the second other gateway device specified by the transfer destination information. COPYRIGHT: (C)2009,JPO&INPIT
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title GATEWAY DEVICE, NETWORK SYSTEM, COMMUNICATION METHOD, AND PROGRAM
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