Portable locator system and method

  • US 6,321,091 B1
  • Filed: 07/29/1999
  • Issued: 11/20/2001
  • Est. Priority Date: 07/29/1999
  • Status: Expired due to Term
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First Claim
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1. A locator system comprising:

  • at least one locator device having a receiver structured and configured to receive electromagnetic frequency signals from a plurality of visible radiolocation transmitters and generate positional data of said locator device from said electromagnetic frequency signals;

    a cellular modem operatively coupled to said locator device to transmit said positional data;

    a telecommunication provider in wireless communication with said cellular modem to receive said positional data from said cellular modem;

    a server computer in network communication with said telecommunication provider to receive said positional data from said telecommunication provider, said server computer having software residing therein to publish said positional data;

    a subscriber computer in network communication with said server computer to receive and display said positional data; and

    a power source coupled to said locator device and to said cellular modem, said locator device including power conserving software residing therein, said power conserving software carrying out the operation of monitoring synchronization of said receiver with said radiolocation transmitters, reducing power to said cellular modem when said synchronization is lost, and restoring power to said cellular modem when said synchronization is reestablished.

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