Method and system for determining club head speed

Details Method and system for determining club head speed Method and system for determining club head speed

2007-08-14

2007-08-14

Legesse, Nini F. (Department: 3711)

Games using tangible projectile

Golf

Projectile addressing surface and target, or distance marker

C473S219000, C473S223000

Reexamination Certificate

active

11357215

ABSTRACT:
A one dimensional (1D) line imaging system that operates at a scanning (clock) rate of between 10-40 MHz is used to monitor the characteristics of a golf swing. A line image is analyzed in real time by an associate computer imaging system removing the need for a trigger to operate. Optics of the imaging system are designed to relate ball image size to distance so that the number of 1 D pixels imaging the ball, in particular sensing a white object, have a relation to distance to the ball. Ball image size is related to distance by monitoring the rate of increase (rate of change) of the pixels imaging the ball with time so that the speed of the club head can be determined. The speed of a golf ball that has been struck is determined by monitoring the rate of decrease (rate of change) of the pixels imaging the ball.

REFERENCES:
patent: 5342054 (1994-08-01), Chang et al.
patent: 5626526 (1997-05-01), Pao et al.
patent: 5846139 (1998-12-01), Bair et al.
patent: 5860648 (1999-01-01), Petermeier et al.
patent: 6302802 (2001-10-01), Pao

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