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WIRELESS POSITION SENSING USING MAGNETIC FIELD OF TWO TRANSMITTERS

  • US 20150308861A1
  • Filed: 04/27/2015
  • Published: 10/29/2015
  • Est. Priority Date: 04/25/2014
  • Status: Abandoned Application
First Claim
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1. A positioning system, comprising:

  • a) two transmitting coils, each coil configured to transmit a periodic signal with a respective selected frequency during a positioning event, wherein the frequencies of the two signals transmitted by the two transmitting coils during the positioning event are different;

    b) a receiver including a sensing unit for measuring the magnetic field vectors produced by the two simultaneously transmitting coils; and

    c) a computing unit configured to use the measured magnetic field vectors to calculate the position and orientation of the receiver with respect to the transmitter'"'"'s coordinate frame.

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