Apparatus for accurately determining a moving ball's position an

Details Apparatus for accurately determining a moving ball's position an Apparatus for accurately determining a moving ball's position an

1994-04-01

1997-02-11

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

2502061, 273371, 473455, G01P 336, A63B 6940, F41J 502

Patent

active

056026382

ABSTRACT:
The invention is to an apparatus and method for determining the position and speed of a pitched ball. A collection box includes arrays of pulsed infrared emitter sensor pairs. As a ball passes between the emitter/sensor pairs, the signal between at least two emitter/sensor pairs are interrupted. The position of the interrupted emitter/sensor pairs and the time the signal between an emitter/sensor pair indicates the position and speed of the pitched ball.

REFERENCES:
patent: 3727069 (1973-04-01), Crittenden et al.
patent: 4814986 (1989-03-01), Spielman
patent: 4949972 (1990-08-01), Goodwin et al.
patent: 5230505 (1993-07-01), Paquet et al.
patent: 5404008 (1995-04-01), Malinowski et al.

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