1
Preston E Blair, Frank S Preston: Method and apparatus for player interaction with animated characters and objects. Davis & Schroeder, August 24, 1993: US05239463 (299 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 (156 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 (139 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 (138 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
Ing Chung Huang: Air cushion grip with a cubic supporting structure and shock-absorbing function. Bacon & Thomas, March 16, 1993: US05193246 (119 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 ...


6
David J Marinelli: Speed, spin rate, and curve measuring device using multiple sensor types. Silicon Pie, James R Young, December 5, 2000: US06157898 (119 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 ...


7
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 (117 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 ...


8
Stephen M Pasternak: Navicular support tennis shoe. Chesebrough Pond s, Brumbaugh Graves Donohue & Raymond, June 9, 1987: US04670998 (116 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 ...


9
Barry J French: Sports scoring device including a piezoelectric transducer. D Peter Hochberg, Mark M Kusner, Louis J Weisz, April 25, 1989: US04824107 (110 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
Robert D Shomo: Shock and vibration absorbent handle. Robert G Mentag, April 28, 1987: US04660832 (107 worldwide citation)


A shock and vibration handle for application to the hand gripping portion of the normal handle of an impacted, vibration sensitive item, such as, a tennis racket, a racquetball racket, a golf club, a baseball bat, and other impact devices, such as hammers, and the like. The shock and vibration absor ...



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