11
Robert A Cobb, Charles E Tarr: Swing parameter measurement system. Swingspeed, Daniel H Kane Jr, July 26, 1988: US04759219 (147 worldwide citation)

A transistor logic device uses a signal from a transducer responsive to the centrifugal force experienced in or near the strike zone of a baseball bat during the swing to digitally process and numerically display numerals representative of the maximum centrifugal force experienced during the swing. ...


12
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 (141 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 ...


13
Michael H McTeigue, Art Zias: Sports training system and method. June 22, 1993: US05221088 (138 worldwide citation)

A sports training aid has a pair of foot sensors, insertable in a pair of shoes, which generate measurement signals indicative of weight applied to each of the foot sensors. The training aid compares the measurement signals with a specified range of values and produces audible sounds indicative of t ...


14
Keenan O Holte: Sporting event options market trading game. Oris L L C, John D Titus, O Connor Cavanagh, February 3, 1998: US05713793 (136 worldwide citation)

A commodities options trading game is provided in which the simulated market, which determines whether the value of the simulated commodities options rise or fall, is determined by a real event occurring outside the game being played. In a preferred embodiment, the event from which the simulated mar ...


15
Akseli Anttila, Suresh Chande, Mikko Mäkipää, Isto Männistö: Electronic coupon system. Nokia Corporation, Antonelli Terry Stout & Kraus, March 1, 2005: US06862575 (135 worldwide citation)

A system for issuing electronic coupons. A master coupon is provided by a service which may be copied by customers and placed into their individual electronic wallets. The coupons may have a variable benefit or value which may be established by a variety of parameters. The parameters include a set t ...


16
Peter Lipson: Baseball simulation system. Atari Games Corporation, Knobbe Martens Olson & Bear, July 25, 1995: US05435554 (135 worldwide citation)

A system and method for simulating a baseball game. The present invention includes means for controlling the direction of a hit through timing and joystick control. The pitch of the ball is controlled in vertical and horizontal directions to provide a three-dimensional control effect. The quality an ...


17
David J Marinelli: Speed, spin rate, and curve measuring device using multiple sensor types. Silicon Pie, James R Young, December 5, 2000: US06157898 (135 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 ...


18
Carl P Pearson, David W Hood: Video sports game system using trading cards. Hero, Jensen & Puntigam, May 2, 1995: US05411259 (132 worldwide citation)

The system includes a control system (12) which carries out the performance of a video sports game, such as a baseball game, and controls the display on a video monitor (14). Input information concerning the performance of players in the game is supplied via trading card elements (20--20), each of t ...


19
Barry J French: Sports scoring device including a piezoelectric transducer. D Peter Hochberg, Mark M Kusner, Louis J Weisz, April 25, 1989: US04824107 (118 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 ...


20
Glenn R Bernard: Stadium game for fans. John R Ross, John R Ross III, September 25, 2001: US06293868 (112 worldwide citation)

A game which is played by fans of sports events such as baseball, football, basketball and soccer. Each player makes advance predictions as regarding the outcome they expect to occur during the event. The player records his predictions in a form that can be checked by a computer. The record of the p ...