A sportsball and manufacturing method thereof are provided. The sportsball includes a carcass and a ball cover. The ball cover includes two or more cover panels having connecting sides connected with each other in edge to edge manner to form a plurality of connecting seams. The ball cover is supported and retained by the construction layer of the carcass in a desired roundness after air inflation. At least one the cover panels of the ball cover provides one or more virtual stitching seams molded to form thereon each imitating an actual stitching seam but having no stitching hole and gap. Each of the virtual stitching seams has a virtual seam recess and a plurality of virtual stitching marks along a bottom of the virtual seam recess imitating actual stitching marks of stitching thread like the actual stitching seam after sides of panels being sewn edge to edge together, so as to reduce the number of cover panels of the ball cover and minimize the presence of stitching holes and gaps of the ball cover.

An apparatus for a ball stowable support is provided. The apparatus includes a frame, an elastic cover secured to the frame, and at least one leg supporting the frame. Each leg of the at least one leg has an opening. The opening is configured to retain a ball.

A variable-color region (106) of an information-presentation structure extends to an exposed surface (102) at a surface zone (112), normally appears along it as a principal color, and includes impact-sensitive and color-change components 182 and (184). A segment (192) of the impact-sensitive component responds to an object (104) impacting the zone at an object-contact area (116) by providing an impact effect if the impact meets threshold impact criteria. A segment (194) of the color-change component responds to the impact effect by causing an impact-dependent portion (138) of the variable-color region to temporarily appear along a print area (118) of the zone as changed color materially different from the principal color. The print area closely matches the object-contact area in size, shape, and location. The color-change capability helps, for instance, in making in/out calls in sports such as tennis.

A variable-color region (106) of an information-presentation structure extends to an exposed surface (102) at a surface zone (112) and normally appears along it as a principal color. An impact-dependent portion (138) of the variable-color region responds to an object (104) impacting the zone at an object-contact area (116) by temporarily appearing along a print area (118) of the zone as changed color materially different from the principal color if the impact meets threshold impact criteria. The print area closely matches the object-contact area in size, shape, and location. An image-generating controller (806) responds to the impact by causing an image-generating structure (804) to generate an image of the print area and adjacent surface extending to at least a selected location of the exposed surface if the threshold impact criteria are met. The image assists in determining how close the impact occurred to the selected surface location.

A variable-color region (106) of an information-presentation structure extends to an exposed surface (102) at a surface zone (112) and normally appears along it as a principal color. An impact-dependent portion (138) of the variable-color region responds to an object (104) impacting the zone at an object-contact area (116) by temporarily appearing along a print area (118) of the zone as changed color materially different from the principal color if the impact meets threshold impact criteria. The print area closely matches the object-contact area in size, shape, and location. The color-change time duration of the impact-dependent portion temporarily appearing as the changed color is in a duration range established prior to the impact. A controller (602) responds to both the impact and subsequent external instruction (608) by controlling the impact-dependent portion so as to adjust the color-change duration subsequent to the impact.

A ball throwing machine can include a hopper for receiving one or more balls and a ball delivery device. The ball delivery device can be used to throw or pitch a ball from the hopper to a user of the machine. The ball delivery device can include wheels to impart speed to the ball and a direction system to control the projection angle of the ball. The direction system can control at least one of the up and down angle and the side to side angle of the ball as it is thrown, among possibly other throwing parameters. A controller may be provided for controlling operation of the ball throwing machine.

A variable-color region (106) of an information-presentation structure extends to an exposed surface (102) at a surface zone (112) and normally appears along it as a principal color. An object-tracking control apparatus (808) tracks movement of an object (104) over the surface. As the object impacts the zone at an object-contact area (116), an impact-dependent portion (138) of the VC region temporarily appears along a print area (118) of the zone as changed color materially different from the principal color if the impact meets threshold impact criteria and if the tracking indicates that the object is highly likely to impact the object-contact area. The print area closely matches the object-contact area in size, shape, and location. Impacts of bodies not tracked by the control apparatus substantially do not cause color change so that color change occurs substantially only for suitable impacts of the tracked object.

An American style football including an inflatable prolate spheroidal shaped bladder, a lining positioned over the bladder, a cover assembly, a lacing, and an electronic circuit positioned between the lining and the cover assembly and generally aligned with the lacing. The cover assembly includes at least first, second, third and fourth cover panels collectively positioned over the bladder and the lining. The lacing is coupled to the first and fourth cover panels. The electronic circuit includes at least one sensor and the electronic circuit is configured to produce a signal to enable at least one characteristic of the football to be monitored during use.

A ball hitting practice device includes a shaft having a target at a distal end, a grip at a proximal end, an accelerometer, a microprocessor, and a way of providing feedback to a person hitting the target. A ball hitting practice system includes a ball hitting practice device and a computing device wirelessly communicating with the ball hitting practice device. A method for practicing ball hitting involves striking the target of a ball hitting practice, transferring timed acceleration data to the computing device, correlating ball hitting parameters with a training condition and displaying the correlated ball hitting parameter in a display.

A basketball training system includes a server computer and a basketball training machine. The server computer executes a workout module that manages operation of a graphical user interface that presents a graphical representation of a portion of a basketball court and receives user inputs that define a workout program that includes selected ball delivery locations relative to the visual representation. The basketball training machine receives the workout program and delivers basketballs to the selected ball delivery locations.