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GPS ACCURACY REFINEMENT USING EXTERNAL SENSORS

  • US 20140316305A1
  • Filed: 05/29/2014
  • Published: 10/23/2014
  • Est. Priority Date: 06/22/2012
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a global-positioning system (GPS) receiver;

    at least one motion sensor;

    control logic, the control logic configured to;

    a) obtain GPS data from the GPS receiver,b) obtain data from the at least one motion sensor,c) determine step count data from the data obtained from the at least one motion sensor, andd) determine first refined data for one or more first measurement intervals using both the GPS data and the step count data.

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