Information terminal apparatus, information processing apparatus and information communication system

  • US 20040044911A1
  • Filed: 06/17/2003
  • Published: 03/04/2004
  • Est. Priority Date: 06/26/2002
  • Status: Active Grant
First Claim
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1. An information terminal apparatus comprising:

  • a reception means for receiving a satellite signal transmitted from an artificial satellite constituting a global navigation system;

    a communication means for transmitting/receiving a variety of information data to/from an information processing apparatus via a communication network; and

    an authentication means for determining whether said information processing apparatus comprises a legitimate counterpart for connection, based on authentication information transmitted/received by said communication means, and for permitting said communication means to transmit position/time information related to a current position and/or current time calculated from said satellite signal, only if said information processing apparatus is authenticated as the legitimate counterpart for connection.

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