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CLOSE PROXIMITY ALERT MESSAGING SYSTEM AND METHOD

  • US 20100210290A1
  • Filed: 02/13/2009
  • Published: 08/19/2010
  • Est. Priority Date: 02/13/2009
  • Status: Active Grant
First Claim
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1. An alert broadcast method, comprising the steps of:

  • wirelessly transmitting a first message from a first cellular communication device to a central transceiver, the first message having a characteristic identifying the first message as an alert message;

    determining a location of the first cellular communication device;

    identifying a plurality of second cellular communication devices that are within a proximity of the first cellular communication device; and

    transmitting a second message from the central transceiver to the second cellular communication devices, the second message being dependent upon the first message.

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