INTERACTIVE SPORTS GAMES A/S
INTERACTIVE SPORTS GAMES A/S Patent applications | ||
Patent application number | Title | Published |
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20090075744 | DETERMINATION OF SPIN PARAMETERS OF A SPORTS BALL - A method of determining spin parameters of a spot ball, such as spin axis and rotation velocity of a golf ball. The spin axis is determined solely from the trajectory of the flying ball, and the rotational velocity is determined from a frequency analysis of a signal provided by a radar, which signal comprises spectrum traces positioned equidistantly in frequency, which frequency distance relates to the spin velocity. | 03-19-2009 |