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Media communication system, and terminal apparatus and signal conversion apparatus in said system

  • US 20020051463A1
  • Filed: 03/16/2001
  • Published: 05/02/2002
  • Est. Priority Date: 10/31/2000
  • Status: Active Grant
First Claim
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1. A media communication system for performing media communication between first and second terminals, each of which is constructed so as to be capable of IP communication, via an IP network, comprising:

  • an IP packetizing unit for IP-packetizing and sending, to the IP network, a media signal sent from the first terminal, and for converting an IP packet received from the IP network to a media signal and sending the media signal to the first terminal;

    a media signal transmitting unit for connecting a media/signal converter, which is provided within the first terminal, to said IP packetizing unit, and for transmitting a media signal and the first terminal having, in addition to said media/signal converter for generating a media signal and receiving a media signal from the IP packetizing unit, a controller for controlling connection to the second terminal and for controlling sending/receiving of a media signal when a call is generated;

    wherein when a call is generated, the first terminal performs control in such a manner that said IP packetizing unit operates as its own IP packetizing unit, and controls said media signal transmitting unit to connect said media/signal converter and said IP packetizing unit; and

    upon completion of the connection, the first terminal sends and receives media signals to and from the second terminal via said media/signal converter, said media signal transmitting unit, said IP packetizing unit and said IP network

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