Apparatus and methods to track sport implements
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, the partial overlapping of the first and second coils results in less bowing of the first vertical component of the first magnetic field;
a sensor to measure a magnitude of the first vertical component of the first magnetic field; and
a processor to determine an object of interest has crossed the first line of interest based on the magnitude of the first vertical component of the first magnetic field measured by the sensor.
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Abstract
Examples are disclosed to track sport implements and/or objects of interest. An example apparatus includes a first coil to generate a first magnetic field having a first vertical component with a zero magnitude along a first line of interest and a second coil partially overlapped with the first coil, where the second coil is to generate a second magnetic field. The example apparatus also includes 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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Citations
20 Claims
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1. An apparatus comprising:
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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, the partial overlapping of the first and second coils results in less bowing of the first vertical component of the first magnetic field; a sensor to measure a magnitude of the first vertical component of the first magnetic field; and a processor to determine an object of interest has crossed the first line of interest based on the magnitude of the first vertical component of the first magnetic field measured by the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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generating, with a first coil, a first magnetic field having a first vertical component with a zero magnitude along a first line of interest; generating, with a second coil, a second magnetic field, the second coil partially overlapped with the first coil, the partial overlapping of the first and second coils reduces bowing of the first vertical component of the first magnetic field; and determining whether an object of interest has crossed the first line of interest based on a magnitude of the first vertical component of the first magnetic field as measured above the first line of interest. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification