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US 4,304,406 AGranted
Golf training and practice apparatus
OwnerJohn I. Cromartyinventor
Life of this patent
Estimating the term…
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OwnerJohn I. Cromartyinventor
Estimating the term…
A golf training and practice apparatus has a television display and a plurality of sensors for sensing positions of a head of a golf club during the swing at a ball at a given location. A circuit responsive to the times of positioning of the head with respect to the sensors provides output signals to enable display on the television display of a graphic representation of the direction of the swing. The circuit also enables alphanumeric display of other parameters of the swing, and provides on the television display a fixed image of the angle of the face of the club at a time just before the ball reaches the ball position location. In order to also provide information relating to the golfer's stance, the apparatus includes sensors for indicating in alphanumeric characters the relative weight on each of the golfer's feet during various portions of the swing.
In a golf training and practice apparatus having a ball position location, a plurality of sensors for producing signals in response to the proximity thereto of the head of a golf club, said sensors being positioned to sense positions of the head of the club at least during a portion of a swing of said club aimed at said ball position loction, an indicator, and a circuit for receiving said signals and controlling said indicator to provide a display of a characteristic of said swing;
In a golf training apparatus having a ball position location, a plurality of sensors for producing signals in response to the proximity thereto of the head of a golf club, said sensors being positioned to sense positions of the head of the club at least during a portion of a swing of said club aimed at said ball position location, an indicator, and a circuit for receiving said signals and controlling said indicator to provide a display of a characteristic of said swing, the improvement wherein a plurality of said sensors are positioned to be sequentially passed by said club head during a down swing motion, said circuit comprising means responsive to said last-mentioned sensors for determining the downswing acceleration of said club head, said sensors further comprising a pair of sensors angularly disposed with respect to one of the sensors of said first mentioned group, to be passed by said club head following the passing of said one sensor, said circuit further comprising means responsive to the times of passage of said golf club with respect to said one sensor and said last-mentioned two sensors, and means normalizing said passage of sensors to the velocity of said club head for producing a data signal corresponding to the club face angle.
Dependencies are inferred from the claim text.