1
Preston E Blair, Frank S Preston: Method and apparatus for player interaction with animated characters and objects. Davis & Schroeder, August 24, 1993: US05239463 (315 worldwide citation)


An improved video system that enables a player to interact with mid-air stereo perception images of foreshortened perspective animation and return the animation back to the playing field on the projection screen or monitor, or to effect other interactive dramatics with the animation. The improvement ...


2
Roy J Rosser, Martin Leach: Television displays having selected inserted indicia. Princeton Electronic Billboard, Arthur L Plevy, November 23, 1993: US05264933 (160 worldwide citation)


An apparatus and method of altering video images to enable the addition of images, message, slogans or indicia in such a manner that they appear to be part of the original image as displayed. The application of the apparatus and method is particularly adapted to be used as advertising during sportin ...


3
Dave Marinelli: Speed, spin rate, and curve measuring device. Silicon Pie, James R Young, November 14, 2000: US06148271 (151 worldwide citation)


A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis ball, or a golf ball. Part of the device, called the object unit, is embedded, secured, or attached to the movable object of interest, and consists of an accelerometer network, electronic processo ...


4
Allan G Hock: Biofeedback system for sensing body motion and flexure. Advantedge Systems, Vernon C Maine, Scott J Asmus, March 7, 2000: US06032530 (146 worldwide citation)


A method and apparatus for monitoring key components of body movement and flexure during kinetic activities, and providing intuitive, audible, real time biofeedback to the user. The system uses one or more transducers of types that are directionally sensitive to motion, distance, velocity, and the l ...


5
Stephen M Pasternak: Navicular support tennis shoe. Chesebrough Pond s, Brumbaugh Graves Donohue & Raymond, June 9, 1987: US04670998 (134 worldwide citation)


A sports shoe, preferably for tennis includes a rigid stirrup member with a pair of first portions that extend downwardly and rearwardly, on opposite sides of the shoe, to the sole, and a second portion that extends around the back of the shoe and is connected between the first portions. The first p ...


6
Noel C Perkins: Electronic measurement of the motion of a moving body of sports equipment. Noel C Perkins, Young & Basile P C, April 4, 2006: US07021140 (133 worldwide citation)


An application of rate gyros and accelerometers allows electronic measurement of the motion of a rigid or semi-rigid body, such as a body associated with sporting equipment including a fly rod during casting, a baseball bat, a tennis racquet or a golf club during swinging. For instance, data can be ...


7
David J Marinelli: Speed, spin rate, and curve measuring device using multiple sensor types. Silicon Pie, James R Young, December 5, 2000: US06157898 (131 worldwide citation)


A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis ball, bowling ball, or a golf ball. Part of the device, called the object unit, is embedded, secured, or attached to the movable object of interest, and consists of an accelerometer network, elect ...


8
Ing Chung Huang: Air cushion grip with a cubic supporting structure and shock-absorbing function. Bacon & Thomas, March 16, 1993: US05193246 (121 worldwide citation)


An air cushion grip with a cubic structure and shock-absorbing function to be fixed around the handle of a tennis racket, a hammer, a bicycle or the like, and comprising an outer flat layer and a bottom layer provided with a plurality of round and/or straight grooves, the vertical walls of which for ...


9
Barry J French: Sports scoring device including a piezoelectric transducer. D Peter Hochberg, Mark M Kusner, Louis J Weisz, April 25, 1989: US04824107 (113 worldwide citation)


Disclosed is a device for generating an analog output signal indicative of an impact to a transucer. The tranducer may be mounted on protective equipment utilized in various martial arts fields, such as headgear, hand or footgear, protective vests and the like or can be mounted on training equipment ...


10
Peter A Hudson, Kaia Histand, Jeffrey C Pisciotta: Article of footwear having medial and lateral sides with differing characteristics. Nike, Banner & Witcoff, August 29, 2000: US06108943 (109 worldwide citation)


An improved article of footwear, specifically for use in the sport of tennis. The article of footwear addresses motions prevalent in the sport of tennis by enhancing performance and preventing injuries. The article of footwear is asymmetrical and the lateral and medial portions have features to perf ...



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