Golf club head impact location based on 3D magnetic field readings
AssigneeTopgolf Callaway Brands Corp.
InventorMario Raposo
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Abstract
A 3-axis magnetometer inside a golf ball to detect the impact location on golf club heads that contain ferrous materials is disclosed herein. Key aspects of a golf shot are determined from within the golf ball itself. A magnetometer, preferably running at 85 Hz, inside a golf ball is able to measure spins of 5000 RPM. An integrated circuit comprises a gyroscope, a magnetometer, and a BLUETOOTH low energy (BTLE) radio, and at least one battery. A body is composed of an epoxy material, and the body encompasses the integrated circuit.
Claims4
A system for determining a golf club impact location with a golf ball based on three-dimensional magnetic readings, the system comprising:
- a golf club comprising a magnet that generates a magnetic field;
- a golf ball comprising a magnetometer;
- a mobile device comprising a mobile app;
- wherein the magnetometer is configured to detect the magnetic field prior to impact;
- wherein the magnetometer is configured to transmit a signal to the mobile app;
- wherein the mobile app is configured to calculate an impact location on the golf club;
- wherein the mobile app is configured to subtract X, Y, Z magnetic field readings from a plurality of measurements without the magnet present, normalizing the subtracted values and comparing the subtracted values to a calibration table of values to identify a match.
Dependencies are inferred from the claim text.