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Multi-user global position tracking system and method

  • US 6,838,998 B1
  • Filed: 02/04/2000
  • Issued: 01/04/2005
  • Est. Priority Date: 02/05/1999
  • Status: Expired due to Term
First Claim
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1. An Internet based personal tracking system for tracking the position of a portable location unit which transmits position data representing the geographical position of the unit, wherein the system may be accessed by a remote user from a remote terminal and comprises:

  • a web host connected to the Internet having a computer readable medium;

    a computer program residing on said web host having a set of computer readable instructions which include;

    input instructions for receiving a tracking request signal from the remote user via the Internet, said tracking request having a location unit identification;

    processing instructions for receiving said tracking request signal and processing and routing said tracking request signal;

    communication instructions initializing wireless communication with the location unit;

    location instructions responsive to said processing instructions for generating a position call signal and outputting said call signal to the location unit and for receiving said position data from said location unit, and a display module for outputting said position data for display of the location unit'"'"'s position by the remote user via the Internet; and

    error instructions for processing a no communication signal when communications fail between said web host and the location unit; and

    generating a no communication signal outputted from said web host to said remote user.

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