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John D Lipps, Stephen J Szczecinski, Robert W Baskette: Sensing spatial movement. Sports Sciences, John L Gray, April 21, 1998: US05741182 (131 worldwide citation)

Apparatus including a video baseball-simulating game and a special bat containing a combination of electronic, mechanical, and optical components for providing infrared radiation or other energy (typically electrical) that is modulated when the player swings the bat and thus actuates a centrifugal s ...


2
John D Lipps, Stephen J Szczecinski: Golf practice apparatus. Sports Sciences, John L Gray, November 11, 1997: US05685782 (18 worldwide citation)

An apparatus for the practicing of golf swings utilizing a motion sensor and a radiation source on the forehead of the user which projects a radiated signal when head motion is sensed. The signal is detected by a unit contemporaneously with the golfer's swinging either-a golf club, if he is outside, ...


3
Zhang Ran, Zeng Xiaofeng: Jump height indicator. Sichuan Prov Inst Of Sports Sciences, liu shiquan, May 2, 2001: CN99117301

A vertical jump height indicator for testing the vertical jump height and response power of human body is composed of base, height-adjustable supporter and test probe. The casing of said test probe has light beam emitting hole and its receiving hole and indicating window. It features that the said t ...


4
Lipps John D, Szczecinski Stephen J, Baskette Robert W: Sensing spatial movement. Sports Sciences, LIENESCH Theodore D, December 28, 1995: WO/1995/035135

Apparatus for use with a video baseball-simulating game includes a special bat (4) containing a combination of electronic, mechanical, and optical components for providing infrared radiation that is modulated when the player swing the bat and thus actuates a centrifugal switch (5) therein. An altern ...


5
Lipps John D, Szczecinski Stephen J: Riding board game controller. Sports Sciences, LIENESCH Theodore D, November 14, 1996: WO/1996/035494

This invention is a riding board controller (20) for use with a video game (14) having a display monitor (12), a host computer which sends audiovisual signals to the display monitor, a port on the host computer for receiving control signals from a game controller, and a software program operating on ...


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