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Method and system for mobile telephone restriction boundary determination

  • US 6,973,323 B2
  • Filed: 10/10/2002
  • Issued: 12/06/2005
  • Est. Priority Date: 10/10/2002
  • Status: Active Grant
First Claim
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1. A method of providing boundary information to a user of a mobile telephone comprising:

  • a) determining geographic boundary information regarding mobile telephone usage restriction;

    b) responsive to the determined geographic boundary information, providing an indication to the user of the mobile telephone of mobile telephone usage restriction,wherein the determining step comprises the sub steps of;

    c) constructing a first polygon describing a geographic boundary from the geographic boundary information;

    d) constructing at least one second polygon containing an area that restricts mobile telephone usage within the geographic boundary; and

    e) comparing the current location of the mobile telephone to the area that restricts mobile telephone usage within the geographic boundary; and

    wherein the providing step comprises the sub-steps of;

    f) indicating when the mobile telephone approaches said area that restricts mobile telephone usage within the geographic boundary;

    g) indicating when the mobile telephone enters said area that restricts mobile telephone usage within the geographic boundary;

    h) indicating when the mobile telephone is within said area that restricts mobile telephone usage within the geographic boundary;

    i) indicating when the mobile telephone is exiting the area that restricts mobile telephone usage within the geographic boundary; and

    j) indicating when the mobile telephone is outside the geographic boundary.

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