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| Number | Title | Issue Date |
| 7883427 | Device for shot tracking A device for tracking a golfer's shot during a round of golf wherein the device comprises a housing composed of a polymer material, the housing having a main body and a projection body extending from the main body, the projection body having a length ranging from 1 ... | 02/08/2011 |
| 7381139 | Golf club face position detection system A golf club face position detection system incorporates a light beam reflected off the face of a golf club as the face strikes the ball which activates a circuit to capture the image of the reflected light beam against a target area thereby indicating horizontal and... | 06/03/2008 |
| 7291072 | Performance measurement system with fluorescent markers for golf equipment The present invention is directed to a monitor system that measures flight characteristics of at least one object moving in a predetermined field-of-view using at least one fluorescent marker. The system may include a lighting unit with a light filter, at least one ... | 11/06/2007 |
| 7095312 | System and method for tracking identity movement and location of sports objects A method and apparatus for tracking location and flight path attributes of one or more sports objects, associating the sports objects with individual players, mapping each sports object location and a flight path to surrounding field of play, and allowing each playe... | 08/22/2006 |
| 7094158 | Golf putting practice device A compact, low profile golf putting practice apparatus includes a two-part flipper including a longitudinal flipping member and a coaxially mounted base section supporting the flipper member. A torsion spring pivots the flipper from its retracted position into an ex... | 08/22/2006 |
| 7040998 | Golf putting game with means for automatically monitoring the movement of the ball A golf game employing r.f-tag coded golf balls has a playing area with r.f. antennae located underneath to enable the number of strokes taken by a player to be counted. Separate antennae are provided for the tee area and hole, respectively, and the antennae around t... | 05/09/2006 |
| 6834129 | Method of measuring rotation of sphere A flying sphere is photographed twice at a predetermined time interval and two static images thus obtained are used to measure a rotation of the sphere through an image processing based on a recognition mark of a surface of the sphere. The recognition mark includes ... | 12/21/2004 |
| 6634959 | Golf ball locator A golf ball locator system including a golf ball including an electromagnetic signal transmitter; at least two electromagnetic signal receivers configured to receive an electromagnetic signal transmitted by the golf ball; and a processor coupled to the re... | 10/21/2003 |
| 6302802 | Methods and apparatus for a portable golf training system with an optical sensor net An optical sensor net system for measuring the relational dynamic information of a spheroidal projectile. A support frame for the system may include light emitters that generate divergent non-parallel rays of light. The non-parallel rays of light emitted ... | 10/16/2001 |
| 6179720 | Correlation method and apparatus for target-oriented sports activities The correlation method and apparatus matches the impact location of an object at or near a predetermined target with one of many shots at the target. For example, the correlation method and apparatus can match the golf ball driven from a tee box with an i... | 01/30/2001 |
| 6159113 | Baseball strike indicator Light indication apparatus for baseball includes a first light source for emitting first coherent and intense light rays of a first color in a first direction and a second light source for emitting second coherent and intense light rays of a second color ... | 12/12/2000 |
| 6113504 | Golf ball locator A golf ball locator system. The golf ball comprises a transmitter that transmits a coded signal, identifying the ball, and that is received by an array of receivers. The receivers measure either the angle of arrival, or the time of arrival of the signal, ... | 09/05/2000 |
| 5863255 | Device and method to measure kinematics of a moving golf ball A device for measuring the movement of a ball is a flat pad or a frame defining an opening with one or more magnetic field inducing elements mounted thereon. One or more sensor elements are mounted in the flat pad or the frame, and connected to instrument... | 01/26/1999 |
| 5733200 | Automated practice putting green with oversurface ball return A practice putting green assembly has a strip of artificial grass supported on an articulated multi-sectional frame. A plurality of motor/lift arm combinations can selectively raise or lower individual hinge points between the frame sections. A programmab... | 03/31/1998 |
| 5626526 | Golf training device having a two-dimensional, symmetrical optical sensor net The present invention relates to a golf training device capable of forming a two-dimensional, single planar and total symmetrical optical sensor net for detecting movement of a golf ball. The device comprises a square frame which has a signal producing me... | 05/06/1997 |
| 5582550 | Automatically-scoring mini-golf game A golf game uses radio signals from golf balls to signal to a central computer for automatic score-keeping by the computer. Sensors in each hole also send signals to the computer on the completion of each hole play for each golfer. The golf balls are dist... | 12/10/1996 |
| 5562285 | Distance measuring system for a driven golf ball The system for determining the carry and/or lateral deviation and/or flight time of a driven golf ball uses a grid of geophones to sense the time of impact of a driven golf ball. The geophones are buried in the ground so that the impact is sensed via soun... | 10/08/1996 |
| 5401026 | Method and apparatus for determining parameters of the motion of an object The present invention provides a method and apparatus for determining a desired parameter of the motion of an object. In one embodiment, the device can be used to calculate the estimated carry distance of a golf shot. The golfer uses a keypad to enter the... | 03/28/1995 |
| 5401018 | Baseball simulation game An arcade game simulating a baseball game. A player hits a ball suspended in front of him or her at a known initial position towards a detector assembly, such as an x-y grid of light beams. The initial velocity of the ball is accurately determined by calc... | 03/28/1995 |
| 5390927 | Golf simulator having system for calculating slice/hook component of ball trajectory A golf simulator includes a target screen that receives a projected image of a golf hole from a player's view. As a player hits a ball into the target screen, a main controller analyzes the swing and displays the path of the golf ball using a spotlight ge... | 02/21/1995 |
| 5354063 | Double position golf simulator An improved golf simulation system for two players is contained in a single booth, which has a single screen on which are projected various views of simulated golf holes and into which two golfers independently but concurrently hit golf balls from within ... | 10/11/1994 |
| 5342053 | Golf putting apparatus Golf putting apparatus useful for practice and amusement. Golf balls are putted along a path toward a target zone. The width of the path is resolved into segments which define the target zone, bogey zones on opposite sides of the target zone, and multiple... | 08/30/1994 |
| 5303924 | Golf game simulating apparatus and method A golf game apparatus that simulates a total golf shot distance based upon the actual flight time of a struck golf ball at a practice range and the linear flight distance of the ball to an initial impact position on an adjacent target area. The flight tim... | 04/19/1994 |
| 5249797 | Hockey training apparatus A hockey training aid and game apparatus includes a portable housing having a base unit and a cover connected to the base unit. The base unit includes a floor and four side walls. The floor contains indicia representing a hockey rink; and the cover includ... | 10/05/1993 |
| 5226660 | Golf simulator apparatus A golf simulating apparatus having a driving simulator and an actual green area adjacent thereto for simulating a complete game of golf, comprising apparatus for generating signals indicative of the velocity, trajectory and spin of a hit golf ball. A comp... | 07/13/1993 |
| 5221082 | Enhanced golf simulation system A golf simulator includes a screen for displaying a simulated golf hole. Sensors measure one or more parameters of a hit golf ball hit with a golf club by a player. These parameters may include the velocity, trajectory, and spin of a golf ball. A computer... | 06/22/1993 |
| 5062641 | Projectile trajectory determination system A system that accurately determines the location of the point of impact of a projectile, such as a golf ball, on a screen. A timer is provided that is activated when the projectile leaves a start point positioned at a known location. Upon impact of the pr... | 11/05/1991 |
| 5024441 | Golfcourse simulator device A golf course simulator comprises a track running between a driving area and a target. The track incorporates a plurality of selectively openable and closable holes. The target marks the boundary between the virtual space in which an objective hole is sit... | 06/18/1991 |
| 4086630 | Computer type golf game having visible fairway display A computer type golf game including a spot image ball simulator, and means for changing a scene display upon a screen on which said spot image ball simulator is projected in accordance with theoretical attained distance achieved with each successive play.... | 04/25/1978 |
| 4029315 | Device for automatically evaluating the ball throwing efficiency of a football passer The device for evaluating the efficiency of a ballplayer is provided with a target generator to control means whereby a visible target is rendered visible in a goal surface; the device further comprises means for measuring a parameter in relation with the... | 06/14/1977 |
| 3938809 | Golf game An apparatus for playing a golf game based on the momentum of propelled golf balls. The apparatus includes a golf tee from which golf balls are hit, an upright target for halting the balls propelled from the tee, and a ball momentum determining and indica... | 02/17/1976 |
