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Location information service system, location information service method employing electronic tag, portable information terminal, and terminal program

  • US 9,596,573 B2
  • Filed: 12/12/2013
  • Issued: 03/14/2017
  • Est. Priority Date: 12/21/2012
  • Status: Active Grant
First Claim
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1. A location information service system, comprising:

  • at least one electronic tag transmitter configured to transmit radio waves containing a first identification information; and

    at least one portable information terminal configured to;

    receive the first identification information, andexecute an application specified by the first identification information, wherein;

    the portable information terminal measures a radio wave intensity of the radio waves transmitted by the electronic tag transmitter, and executes the application that varies depending on the radio wave intensity,the electronic tag transmitter transmits the first identification information at a cycle of n second(s), anda cycle of m second(s) shifted (n>

    m) is randomly inserted to the cycle of n second(s).

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