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Mobile information device capable of obtaining user information relating to local area

  • US 6,400,941 B1
  • Filed: 04/15/1998
  • Issued: 06/04/2002
  • Est. Priority Date: 04/21/1997
  • Status: Expired due to Term
First Claim
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1. A mobile information device connectable to an external device via a radio channel, the device comprising:

  • a user memory configured to store user information which includes area information;

    a standby circuit configured to determine that the mobile information device is located in a communicatable area of the external device;

    a request circuit configured to request the external device to transmit area information indicating a location of the external device if it is determined that the mobile information device is located in the communicatable area of the external device;

    a receiver configured to receive area information from the external device after said request circuit requests transmission of the area information; and

    a circuit configured to search said user information table to extract user information which includes the area information received by said receiver.

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