Embodiments of the present invention are directed to devices, systems, and methods for measuring values obtained from one or more sensors installed on a player's tennis racket and/or worn on the player's body, and using those values to calculate various parameters, such as the physical position and motion of the tennis racket. Embodiments may translate the parameters and derive one or more occurrences corresponding to phases of a tennis point or drill and then generate real-time audible, visual, and/or haptic coaching prompts and other related commands and signals, for the purpose of improving a player's motor skills. Embodiments may also send and receive messages to/from other embodiments, thereby permitting a player to interact with other players, coaches, or devices, such as ball machines and cameras.

A method can include determining physical characteristics of a trainee, adjusting a target zone based on the physical characteristics, adjusting one or more parameters of a delivery device based on the physical characteristics, projecting an object toward the target zone along a trajectory, and scoring a performance score of the trainee to track the object along a portion of the trajectory. A method can include projecting an object toward a target zone along a trajectory, a trainee attempting to impact the object at an appropriate location with a desired impact location of a sport tool, capturing imagery that contains the object at the appropriate location and the desired impact location of the sport tool, determining horizontal and vertical distances between the desired impact location and the object arriving at the appropriate location, and scoring a performance based on the horizontal and vertical distances.

A method can include projecting one or more objects along one or more pre-determined trajectories toward a target zone, with each having a diameter less than a diameter of a regulation table tennis ball, the trainee attempting to prevent the one or more objects from entering the target zone and scoring the ability of the trainee. A method can include displaying a first video to a trainee that explains setup for a delivery device, setting up the delivery device based on the first video, projecting an object along a pre-determined trajectory toward a target zone proximate the trainee, wherein the object has a diameter that is less than a diameter of a regulation table tennis ball, and scoring an ability of the trainee to interact with the object at the target zone.

Embodiments of the present invention are directed to devices, systems, and methods for measuring values obtained from one or more sensors installed on a player's tennis racket and/or worn on the player's body, and using those values to calculate various parameters, such as the physical position and motion of the tennis racket. Embodiments may translate the parameters and derive one or more occurrences corresponding to phases of a tennis point or drill and then generate real-time audible, visual, and/or haptic coaching prompts and other related commands and signals, for the purpose of improving a player's motor skills. Embodiments may also send and receive messages to/from other embodiments, thereby permitting a player to interact with other players, coaches, or devices, such as ball machines and cameras.

A ball machine comprising an imaging system to capture image data and a processor configured to, for a frame of the image data, analyze the image data using a neural network to detect a plurality of persons, determine a coordinate position on a playing surface of each of the plurality of detected persons, extract features of each of the plurality of detected persons, generate a first set of feature vectors corresponding to the plurality of detected persons, associate a first feature vector to the coordinate position on the playing surface of a first detected person to generate a first unique identifier, associate a second feature vector to the coordinate position on the playing surface of a second detected person to generate a second unique identifier, and control the ball machine to launch balls based on first settings corresponding to the first unique identifier and second settings corresponding to the second unique identifier.

A method for adaptive user training and gaming utilizing a media player is disclosed. The method includes operations of receiving, by control logic, data pertaining to selection of a first training program, transmitting, by the control logic, media instructions to cause activation of a media player configured to display visual data corresponding to the first training program, and transmitting, by the control logic, ball-throwing instructions to cause activation of a ball-throwing machine configured to impart motion to one or more balls in accordance with the first training program. The method includes additional operations of recording, by the control logic, an indication of the first training program in a player profile. Additional operations includes recording, by the control logic, training data indicating metrics associated with performance of the first training program.

The tennis ball supply device according to an embodiment of the present invention includes a communication circuit configured to communicate with an external device; a launcher configured to launch a ball; a body unit configured to move the launcher; and a controller configured to: control the body unit to move to a first position, identify whether the body unit is disposed on the first position based on a signal received from the communication circuit, based on identifying that the body unit is disposed on the first position, control the launcher to launch the ball, control the body unit to move to a second position after the launcher has stopped launching the ball, and identify whether the body unit is disposed on the second position based on the signal received from the communication circuit.

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 can include projecting an object toward an impact device along a trajectory, receiving the object at a target zone of the impact device, a trainee striking the impact device at an impact zone with a sports tool, and scoring a performance score of the trainee to impact the impact zone at an appropriate time compared to an arrival time of the object at the target zone. A method can include projecting an object toward a target along a trajectory, receiving the object at an actual arrival position at the target, wherein the actual arrival position is either inside a target zone or outside the target zone, and where a trainee is configured to send an indication when the trainee expects the object to arrive inside the target zone, comparing the indication to the actual arrival position, and determining a performance score based on the comparing.