Electric apparatus for use when practicing a golf swing

Details Electric apparatus for use when practicing a golf swing Electric apparatus for use when practicing a golf swing

1989-02-24

1990-12-25

Grieb, William H.

Amusement devices: games

Surface projectile game; game element

Simulated game

273183R, 273186A, 273185R, A63B 6936

Patent

active

049797450

ABSTRACT:
In an apparatus used for practicing a golf swing, a transmitter-receiver is stationarily arranged on the ground, and a relay unit is provided on the golf club in or near to head. The transmitter-receiver has an infrared light emitter and a pair of receivers. The relay unit has a receiver for receiving the light from the emitter of the transmitter-receiver and a infrared ray emitter for emitting a ray toward the pair of receivers of the transmitter-receiver. An LSI is provided for processing the light received by the pair of receivers separately, for detecting a change in intensity at time elapses for calculating the direction of the swing, and the timing of a maximum intensity for obtaining the head speed.

REFERENCES:
patent: 3194563 (1965-07-01), MacKniesh
patent: 4150825 (1979-04-01), Wilson
patent: 4180726 (1979-12-01), DeCrescent
patent: 4251077 (1981-02-01), Pelz et al.
patent: 4306722 (1981-12-01), Rusnak
patent: 4583733 (1986-04-01), Ito et al.
patent: 4630829 (1986-12-01), White
patent: 4652121 (1987-03-01), Ito et al.

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