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Positioning module

  • US 8,660,786 B2
  • Filed: 08/17/2011
  • Issued: 02/25/2014
  • Est. Priority Date: 08/17/2011
  • Status: Active Grant
First Claim
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1. A positioning device for detecting position of a person, comprising:

  • a magnetometer configured to detect heading of the person and provide heading information;

    a motion sensor configured to detect movement of the person and provide motion information;

    a microcontroller coupled to the magnetometer and the motion sensor and configured to generate position data based on the heading information and the motion information;

    a transmitter coupled to the microcontroller and configured to wirelessly transmit a signal including the position data;

    a piezoelectric power source configured to supply power to at least one of the microcontroller, the magnetometer, the motion sensor and the transmitter, wherein the positioning device is embedded into an article of footwear worn by the person; and

    a Global Positioning System (GPS) wirelessly coupled to the positioning device, configured to;

    receive the signal from the transmitter including the position data, anddetermine position in a GPS-denied environment responsive to receiving the position data from the transmitter.

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