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Power-saving remote locator system and method

  • US 7,333,815 B1
  • Filed: 10/08/2002
  • Issued: 02/19/2008
  • Est. Priority Date: 07/29/1999
  • Status: Expired due to Fees
First Claim
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1. A method of authenticating a subscriber and providing the location of a locator device to said subscriber, said method comprising:

  • providing a locator device comprising a GPS receiver in communication with a cellular modem;

    determining, by the GPS receiver of said locator device, positional data regarding its location;

    receiving, by a server computer, said positional data of said locator device, said positional data including at least latitude and longitude information calculated by said locator device;

    storing said positional information a tracking table associated with said server computer;

    receiving, by said server computer, a request from a subscriber for positional information of said locator device;

    validating, by said server computer, the identity of a subscriber user;

    if said validation is successful, then retrieving subscriber information from a subscriber table associated with said server computer;

    retrieving said positional information from said tracking table;

    convolving said positional data with a map overlay without any further computation necessary to determine the location of said locator device, thereby producing a subscriber image having the positional data superimposed on a map image; and

    transmitting said subscriber image to a subscriber computer over the Internet in accordance with information stored in said subscriber table.

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