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Location-based services

  • US 10,621,793 B2
  • Filed: 12/29/2016
  • Issued: 04/14/2020
  • Est. Priority Date: 08/22/2008
  • Status: Active Grant
First Claim
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1. A location tracking unit configured for use with a location based service system comprising:

  • a first data processor configured to determine an occupied location according to a first location matching process, the first location matching process using navigation data from a navigation receiver and a first set of geographic data; and

    a second data processor configured to verify integrity of the first location matching process based on a second location matching process using the navigation data and a second set of geographic data;

    wherein the first data processor is a host controller and the second data processor is a secure controller.

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