Electrical computers and digital processing systems: multicomput – Multiple network interconnecting
Reexamination Certificate
2008-03-25
2008-03-25
Kang, Paul H. (Department: 2144)
Electrical computers and digital processing systems: multicomput
Multiple network interconnecting
C709S225000
Reexamination Certificate
active
07349993
ABSTRACT:
This invention relates to provide a communication network system, a gateway, and a data communication method, in which the gateway has an advanced functionality. A person who issues an access request can retrieve a desired access destination easily by the following configuration: functions of routing information providing and authentication processing are added to a gateway that performs protocol conversion between two different communication networks; when an access request is issued from a public communication network such as Internet to a terminal in a local (private) communication network connected to the gateway, a request terminal is authenticated to enable prevention of unauthorized data writing and reading; and an access request user who succeeded in the authentication is provided with an active terminal list comprising accessible terminal information, or with a user condition table.
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Futagami Motomasa
Kawamoto Youji
Nagano Motohiko
Kang Paul H.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
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