Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1994-10-11
1996-04-23
Grieb, William H.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
A63B 6900
Patent
active
055096492
ABSTRACT:
A plurality of electromagnetic energy transmitters and receivers are each arranged in a respective linear array to define a single vertical plane. A portion of the transmitters are coupled together to define a field, or strike zone, within the plane. The device has a means for detecting the entrance and exit of a ball into and from the single plane and for simultaneously detecting whether the ball was within, or outside of, the strike zone. The method for measuring the velocity and zonal position of a pitched ball includes sensing the entrance and exit of a ball into and from a single spatial plane, generating a series of count signals, and measuring the number of count signals occurring during passage of the ball through the plane. Simultaneously with measuring the number of count signals, the passage of the ball either through or outside of the strike zone is sensed, and a signal indicative of the position of the ball with respect to the strike zone is displayed.
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Grieb William H.
McFall Robert A.
Musselman, Jr. P. Weston
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