Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-10-16
2007-10-16
Lee, Andrew C. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S466000
Reexamination Certificate
active
09880047
ABSTRACT:
A user terminal is connected to an IP network through an access gateway, and service provider networks are connected to the IP network through an exchange router and border gateways. A group of servers store, for example, information about users, information about services, information about connection, and account information, and, in addition, perform user accounting and alternative account billing to the users. The exchange router converts a packet from the user terminal to the protocol/format on the service provider side and converts a packet from the service provider side to the protocol/format of the user terminal. By virtue of this construction, a network system and a packet data transmission method can be realized which unify connection between users and a plurality of service providers and unified management of business routine and accounting.
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Lee Andrew C.
NEC Corporation
Sughrue Mion Pllc.
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