A variable-color region (886) extending to an exposed surface (102) at a surface zone (892) having a boundary (1212 or 1214) responds to an object (104) impacting the zone sufficiently hard to meet threshold impact criteria at an object-contact area (896) by changing color at a corresponding print area (898) or by providing an impact signal that causes color change at the print area if supplemental impact criteria are also met. In either case, a smoothened image of the print area is produced by determining a portion of the boundary where the print area is nearest the boundary, approximating at least that boundary portion as a smooth boundary vicinity curve, approximating the print area's perimeter, or a portion thereof nearest the boundary, as a smooth perimeter vicinity curve, and comparing the vicinity curves to determine if they meet or overlap.

A golf system. The golf system includes a computing device associated with a user at a playing surface having at least one landmark object. The computing device includes a processor and a memory coupled to the processor. The memory may store processor-executable instructions that, when executed, configure the processor to: obtain topography data associated with a virtual golf hole for a virtual golf ball; determine a target destination location for the virtual golf ball on the playing surface based on the topography data and an anticipated virtual golf ball trajectory; and generating signals for communicating the target destination location and a ball placement location on the playing surface.

A method can include providing an object having a size smaller than a size of a known regulation object, projecting the object, via a delivery device, toward a trainee, and training the trainee to follow the object. A method can include determining a game parameter of a game trajectory of a sports object that was projected along the game trajectory in a real-time sports event, and based on the game parameters, adapting a delivery device to deliver a training object along a training trajectory that mimics at least a portion of the game trajectory, with the training object being smaller than the sports object.

A method can include providing an object having a size smaller than a size of a known regulation object, projecting the object, via a delivery device, toward a trainee, and training the trainee to follow the object. A method can include determining a game parameter of a game trajectory of a sports object that was projected along the game trajectory in a real-time sports event, and based on the game parameters, adapting a delivery device to deliver a training object along a training trajectory that mimics at least a portion of the game trajectory, with the training object being smaller than the sports object.

A method of using a non-fungible token includes generating a digital asset including a virtual object and metadata. The metadata includes attributes that are mutable by an authorized user. The method further includes minting the non-fungible token, securing ownership of the digital asset to a blockchain, providing the digital asset on a digital platform, transferring the non-fungible token to a user wallet, and updating the metadata of the digital asset based on data associated with an event. The metadata includes a URL to a site hosted remotely, off of the blockchain, where the attributes are accessible.

Systems and methods for playing a golf game are disclosed herein. In an embodiment, a system for playing a golf game within limited confines includes a wall unit, a floor unit, and a control unit. The wall unit is configured to display a virtual portion of the golf game. The floor unit is configured to enable a physical portion of the golf game. The control unit is programmed to use first data related the virtual portion and second data related to the physical portion to enable a golfer to play a full golf hole.

The system has a non-rebound substrate and a first frame disposed around a peripheral edge thereof. The system further has an array of sensors, a digital sensor interface, and a control unit. The array of sensors is disposed in a center portion of the first frame. The array of sensors has at least 9 accelerometers configured in rows in a rectangular array in the central portion of the first frame. The control unit has a processor electrically connected to the digital sensor interface to receive data from the array of sensors, and has instructions to calculate a force, an impact point, and a distance from a user to the system based on the data received from the array of sensors.

A basketball performance monitoring system sensor comprising a sensor housing coupled to a basketball goal proximate a net. The housing has a first end and a second end opposite the first end. The housing includes an arm proximate the second end and is configured extendable inside the net. A U-shaped appendage is located between the first end and the second end. The U-shaped appendage is configured to couple to the net; wherein the sensor is configured to sense a ball impact vibration and/or an angular orientation responsive to a basketball passing over the arm.

A training device for baseball and other sports includes layers for detecting different zones of contact. The device can detect position of impact and the velocity of impact of an object such as a baseball, lacrosse ball or hockey puck by a change in voltage due to the compression or pressuring of an interlayer positioned between two conductors. The device is used for individual training as well as for competition over a network.

We generally describe a detection system and a method for tracking a moving object. The detection system (101) comprises a sensor (102) which is configured to sense an event. The system further comprises a trigger detection module (108a) which is coupled to the sensor (102), wherein the trigger detection module (108a) is configured to identify the sensed event to be a trigger event. The system further comprises an imaging device (114) for imaging the trajectory of an object, and an imaging device control unit (112) for controlling the imaging device (114). The imaging device control unit (112) is coupled to the trigger detection module (180a), wherein the imaging device control unit (112) is configured to control the imaging device (114) in response to a trigger event being identified by the trigger detection module (108a). The imaging device (114) is coupled to the imaging device control unit (112) for providing a feedback from the imaging device (114) to the imaging device control unit (112), wherein the controlling of the imaging device (114) by the imaging device control unit (112) is responsive to the feedback.