Charles S Baum: Sports analysis and testing system. Gifford Krass Groh Sprinkle Patmore Anderson & Citkowski, February 9, 1999: US05868578 (78 worldwide citation)

A sports analysis and testing system includes a plurality of high-speed digital video cameras, each aimed at a player from a different perspective to record their movements and those of a ball in play. In a baseball application, a programmed computer interfaced to the video cameras and various optio ...

Thomas R Johnson: Baseball cap light. Harry W Cross Jr, April 21, 1998: US05741060 (77 worldwide citation)

A combination baseball style cap and light assembly, wherein the cap has a crown, a bill extending from the crown, a sweatband liner circumscribing the bottom edge of the cap, and a reinforcing crown liner, has a double light and switch assembly comprising two lamp sockets affixed to a mounting plat ...

Richard E Coleman: Hat and logo. Larry D Johnson, October 11, 1988: US04776043 (77 worldwide citation)

The present invention provides an improved hat with interchangeable patches that can be selectively attached to the hat. In the preferred embodiment, the hat is a standard, billed, baseball-style cap with some portion of a phrase or logo printed on its front surface, and a strip of fastening materia ...

Thomas M Harris: Baseball-strike indicator and trajectory analyzer and method of using same. Francis X LoJacono, October 8, 1985: US04545576 (77 worldwide citation)

An apparatus and method to compute the trajectory of a moving object by remote, non-interfering sensors. The particular application computes the trajectory of a pitched baseball throughout its flight, including the ball's trajectory as it passes in the vicinity of a three-dimensional strike zone. Th ...

David Zakutin: Speed-sensing projectile. Connolly & Hutz, June 2, 1998: US05761096 (76 worldwide citation)

A speed-sensing projectile such as for example a baseball includes a generally spherical body. An inertial switch is positioned within the body and is actuable between open and closed conditions in response to accelerations of the body greater than a threshold value. A processor also within the body ...

Kevin J Crowley, Channing Souther: Outsole for athletic shoe. Converse, July 12, 1983: US04392312 (76 worldwide citation)

A molded outsole for an athletic shoe including molded, non-metallic studs or cleats includes a plurality of first substantially identical studs and a plurality of second substantially identical studs. The first studs have a shape characterized by three partially-overlapping frustoconical shapes, bl ...

Edward I Jones, Gregory Wilson: Adjustable clip-on headphones. May 26, 1992: US05117464 (75 worldwide citation)

Stereo speakers 30 can be disconnected from a crossover headband 10 and clipped onto a variety of headwear in use today, such as a baseball cap, sweatband or sunvisor. A spring-loaded base piece and socket 24 allows the speaker 30 to adjust at an angle perpendicular to the user's ears and rotate 360 ...

Frederick T Haas Jr: Synthetic turf playing surface with resilient top-dressing. Schwartz Jeffery Schwaab Mack Blumenthal & Koch, June 29, 1982: US04337283 (74 worldwide citation)

A playing surface for athletic games comprising a stable subsurface, a pile fabric resembling grass and a compacted top-dressing comprising a mixture of from 25 to 95 volume percent resilient particles and from 5 to 75 volume percent fine sand. The inventive surface is particularly suited for use as ...

Ray Tapia: Cap assembly. James E Brunton, October 17, 1989: US04873726 (74 worldwide citation)

An adjustable baseball type cap assemblage having a crown portion and various interchangeable visor portions. Insignia patches of various styles can be removably affixed to the selected visor and crown portions so that one cap assembly can be modified to identify with two or more athletic teams.

David J Hall, Jonnathan H Kim: System and method for using impulse radio technology to track the movement of athletes and to enable secure communications between the athletes and their teammates, fans or coaches. Time Domain Corporation, William J Tucker, December 9, 2003: US06661342 (74 worldwide citation)

A system, electronic device and method are provided that utilize the positioning capabilities of impulse radio technology to track one or more moving athletes. The movement of these athletes can be displayed on a television, a handheld unit or an Internet site. In addition, the present invention can ...

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