Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2004-02-19
2008-11-04
Lee, Andrew (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S466000
Reexamination Certificate
active
07447218
ABSTRACT:
Communication is performed without paying attention to the fact that the communication is executed between multimedia terminals having communication procedures differing from each other.A terminal2starts a communication procedure that is necessary to establish a communication path to a communication service unit1, in order to execute communication with a multimedia terminal3; when a communication protocol conversion unit7receives communication start request from the terminal2, the communication service unit executes identification process of a calling terminal based on the identification number, which exists in communication start request, for determining the multimedia terminal2, and inquires a terminal information managing unit9of the calling terminal. The terminal information managing unit9retrieves terminal information related to the calling terminal based on a terminal information request, and informs of the retrieved terminal information to the communication protocol conversion unit7. The communication protocol conversion unit7informs of the communication start request to the terminal3when the transmitting the terminal information of the terminal2is obtained, and continues a relay process in communication procedure, which is necessary for following establishment of a communication path.
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Honma Hiroshi
Kawahata Yukiyasu
Matsuda Yukinari
Oka Susumu
Yoshimoto Morio
Lee Andrew
Mitsubishi Denki & Kabushiki Kaisha
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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