A new system of detecting, tracking, and logging force of impact data pertaining to independent impacts to a tackling sled or punching bag is described. The system employs at least one impact sensor, a wireless transmitter, a power source, and a companion application. The at least one impact sensor is equipped with at least one accelerometer configured to accurately detect the force of impact to a pad of the tackling sled or punching bag. The companion application communicates wirelessly to the impact sensor, which relays data to a mobile device or computer running the companion application. A leaderboard can be interfaced with the system, enabling competitive use of multiple impact sensors across multiple punching bags simultaneously.

A device includes a signaling means and a motion sensor, and logic for activating or controlling the signaling means in response to a sensed motion according to an embedded logic. The device may be used as a toy, and may be shaped like a play ball or as a handheld unit. It may be powered from a battery, either chargeable from an AC power source directly or contactless by using induction or by converting electrical energy from harvested kinetic energy. The embedded logic may activate or control the signaling means, predictably or randomly, in response to sensed acceleration magnitude or direction, such as sensing the crossing of a preset threshold or sensing the peak value. The visual means may be a numeric display for displaying a value associated with the count of the number of times the threshold has been exceeded or the peak magnitude of the acceleration sensed.

Systems and methods for ball spin rate measurement are described. Some embodiments provide a method whereby a phase-demodulated difference signal of a projectile in flight is received, such as from a Doppler radar system. A first periodic component of the phase-demodulated signal is detected, the first periodic component having a plurality of bipolar pulses, with each of the pulses having a first portion during which an apparent speed of the projectile is greater than a nominal speed of the projectile, and each of the pulses having a second portion during which the apparent speed of the projectile is less that the nominal speed of the projectile. A period of the first periodic component is detected, and the spin rate of the projectile in flight is determined based on the period of the first periodic component.

A game system is disclosed that comprises a game processor configured to control game play of an electronic video game, and a game controller in electronic communication with the game processor. The game controller includes a plurality of appendicular members configured for respective engagement with legs and arms of a user, and a resistance control system providing a resistive force on each of the plurality of appendicular members with respect to movement of the legs and arms of the user. The resistive force provided by the resistance control system is adjustable in a generally continuous manner in response to the game play of the electronic video game. The game controller also includes a feedback control system responsive to at least one of a motion parameter, a force parameter, and/or a position parameter of each of the plurality of appendicular members to control the game play of the electronic video game.

A training, rehabilitation, and recovery system comprises an exercise apparatus including a user interface member coupled to a plurality of links and joints, brakes capable of resisting movement of at least a subset of the links or joints, and sensors capable of sensing movement at the joints or the user interface member. The system also includes a processor configured to receive from the sensors positional data of the links or joints over an initial movement of the apparatus by a user, from which positional coordinates of the user interface member are calculated and a reference trajectory is established. An end space is defined based on the reference trajectory. Over a subsequent movement of the apparatus by the user, the processor receives additional positional data and determines a completion of a repetition based on the positional coordinates of the subsequent movement and the defined end space.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

An electronic device includes: a memory; and a processor connected to the memory and configured to receive signals from a plurality of sensors that detect an activity state of a user wearing, or having in its vicinity, the electronic device, wherein the processor reads out a program stored in the memory to perform the following processes: receiving the signals from the plurality of sensors; determining the activity state of the user based on the received signals; selecting one or more of sensors from the plurality of sensors on the basis of the determined activity state; deriving, on the basis of the determined activity state, information to be communicated to the user, the information to be communicated to the user being derived from the signals from the selected one or more of the sensors; and causing the derived information to be communicated to the user.

Handheld weight units of light weight manufactured as a solid unit, a shell unit with core insert combinations or modular units with interlocking ends. Shell units with core inserts and modular interlocking units allow for the changing of held weight by inserting or removing inserts or by locking or unlocking of modular weight unit sets creating varying held weight. The weight units are primarily used with upper body exercises during aerobic exercises in the home, outdoors, or in a gym setting such as walking or running to vary the intensity of workout during use.

Exemplary embodiments of the present disclosure are directed to systems, methods, and computer-readable media configured to autonomously track a round of golf and/or autonomously generate personalized recommendations for a user before, during, or after a round of golf. The systems and methods can utilize course data, environmental data, user data, and/or equipment data in conjunctions with one or more machine learning algorithms to autonomously generate the personalized recommendations.

Systems and methods for sports analytics are disclosed. A system for evaluating athletic performance can include wearable sensor devices configured to be removably coupled to an athlete's body during athletic performance, and one or more equipment-mountable sensor devices configured to be coupled to reference objects adjacent to an athletic performance site such as a goal or equipment. A computing device can be communicatively coupled to the wearable sensor device(s) and the equipment-mountable sensor device(s). The computing device is configured to receive sensor data from each of the sensor device(s) and to determine at least one performance parameter.