DETERMINING AND ANALYZING MOVEMENT AND SPIN CHARACTERISTICS IN A GOLF SHOT
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0 Petitions
Accused Products
Abstract
A system or apparatus (1) determines movement characteristics of a golf club (19) and ball (13), including spin characteristics of the ball, without addition or detection of marks or markers on the ball. A beam interrupt system measures club movement up to and including impact and ball movement at and following impact. Spin characteristics are determined, including spin components and causes of spin.
18 Citations
102 Claims
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1-86. -86. (canceled)
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87. A method for determining and analyzing movement characteristics related to a specific golf swing where impact occurs between a club and a ball, where direct measurement is made which defines 3D direction of motion of the ball following impact, when said specific golf swing is executed, characterized in that:
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a) movement characteristics include ball spin characteristics which comprise a selection from a group including angle spin characteristics and angle spin characteristics and off-center spin characteristics; b) angle spin characteristics comprise rate of angle spin and 3D orientation of the axis of angle spin; c) ball spin characteristics are determined without the need for addition or detection of surface or internal marks or markers on the ball; d) 3D orientation of the axis of angle spin is determined using direct measurement which defines 3D direction of motion of the ball following impact when said specific golf swing is executed, and direct measurement which accurately defines 3D direction of motion of the club before impact, when said specific golf swing is executed; and e) rate of angle spin is determined by using predetermined information on a ball instead of actual information on the ball used in the specific golf swing, together with direct measurements which define a selection from the following movement characteristics when said specific golf swing is executed, including 3D direction of motion of the ball, magnitude of ball speed, 3D direction of motion of the club, magnitude of dub speed, and 3D face-direction-angle of the club. - View Dependent Claims (88, 89, 90, 91, 92, 93, 94)
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95. An apparatus for carrying out a selection from determining and analyzing movement characteristics related to a specific golf swing where impact occurs between a club and a ball, the apparatus including a ball measurement means and a processor means, the ball measurement means is configured to directly measure, following impact, movement characteristics of the ball, from which 3D direction of motion of the bail can be determined, when said specific golf swing is executed;
- characterized in that;
a) the apparatus is configured to determine movement characteristics related to the specific swing which include ball spin characteristics which comprise a selection from angle spin characteristics, and angle spin characteristics and off-center spin characteristics; b) the apparatus is configured to determine angle spin characteristics which comprise rate of angle spin and 3D orientation of the axis of angle spin; c) the apparatus is configured to determine ball spin characteristics without the need for addition or detection of surface or internal marks or markers on the ball; d) the apparatus also includes a club measurement means which is configured to directly measure, before impact, movement characteristics of the club, from which 3D direction of motion of the club can be accurately determined, when said specific golf swing is executed; e) the processor means is configured to determine 3D orientation of the axis of angle spin using said direct measurement which defines the 3D direction of motion of the club before impact, and said direct measurement which defines 3D direction of motion of the hall following impact; and f) the processor means is configured to determine rate of angle spin using predetermined ball information available to the processor means instead of actual information on the ball used in the specific golf swing, together with a selection, from the following characteristics involving direct measurement when said specific golf swing is executed, 3D direction of motion of the ball, 3D direction of motion of the club, 3D direction of motion of the ball, magnitude of club speed where the club measurement means is configured to measure club speed, magnitude of ball speed where the ball measurement means is configured to measure ball speed, and 3D face-direction-angle of the club where the processor means is configured to determine the 3D face-direction-angle using movement characteristics measured by the club measurement means and ball measurement means. - View Dependent Claims (96, 97, 98, 99, 100, 101, 102)
- characterized in that;
Specification