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APPARATUS AND METHODS TO TRACK SPORT IMPLEMENTS

  • US 20180304119A1
  • Filed: 04/24/2017
  • Published: 10/25/2018
  • Est. Priority Date: 04/24/2017
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first coil to generate a first magnetic field having a first vertical component with a zero magnitude along a first line of interest;

    a second coil partially overlapped with the first coil, the second coil to generate a second magnetic field;

    a sensor to measure a magnitude of the first magnetic field in the first line of interest; and

    a processor to determine an object of interest has crossed the first line of interest based on the magnitude of the first magnetic field measured by the sensor.

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