System and method for determining a spin axis of a sports ball

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11446546
APP PUB NO 20210052940A1
SERIAL NO

16949250

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system determining a spin axis of a ball includes a radar transmitting a signal into a target area. The radar includes a minimum of three receivers arranged so that two pairs of receivers are not co-linear. The system also includes a Processing Unit (“PU”) receiving data from the radar and determining a radar range of frequencies received at a point in time corresponding to differing velocities relative to the radar of different portions of the ball as the ball is spinning. PU divides the radar frequency range into a plurality of frequency components and calculating, for each of the frequency components, an angular position associated therewith. PU identifies as a projection of the spin axis in a plane perpendicular to a line of sight from the radar to the ball, a line perpendicular to a line represented by the determined angular positions.

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Patent Owner(s)

  • TRACKMAN A/S

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mackeprang, Kasper Vedbaek, DK 4 10
Tuxen, Fredrik Horsholm, DK 60 486
Ungstrup, Michael Vedbaek, DK 47 861

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