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Automatic determination of the position of an object

  • US 8,228,056 B2
  • Filed: 09/19/2008
  • Issued: 07/24/2012
  • Est. Priority Date: 09/19/2007
  • Status: Expired due to Fees
First Claim
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1. A method for analyzing magnetic fields or signals used for determining a position of an object, the method comprising:

  • generating, by two or more conductors, two or more temporal shifted magnetic fields or signals, the two or more conductors arranged separately from each other;

    capturing, by at least one sensor, the magnetic fields or signals generated consecutively by the two or more conductors; and

    determining the position of the object bearing the at least one sensor relative to the conductors from the fields or signals, wherein determining the position of the comprises;

    measuring a signal (Wi) or the magnetic field strength in periodic intervals;

    determining a difference of the field strength of consecutive signal measurements (Wi-Wi+1).

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