A weight machine sensor includes a force sensor, a position sensor, and a processor. The force sensor is programmed to output a force signal representing a force applied to a pulley-disposed on a cable incorporated into exercise equipment having a stack of weights. The position sensor is programmed to detect motion of the stack of weights and output a position signal representing the motion detected. The processor is programmed to receive the force signal and the rotation signal and determine, from the force signal and the position signal, exercise data including an amount of exercise resistance and a number of repetitions performed.

A golf ball with embedded electronics to allow proximity to be tracked and to monitor golfer performance is disclosed. The golf ball comprises a processor connected to an accelerometer, communications circuitry, a spin detector, and memory, wherein the processor stores accelerometer data from the accelerometer and rotation data regarding rotation of the spin detector in the memory. The processor converts the data regarding the rotation of the spin detector into a rotation speed and a rotation direction, said rotation speed determined by a frequency of the data, and said rotation direction determined by a magnitude of the data. The communications circuitry is configured to communicate the accelerometer data, the rotation direction, and the rotation speed to a central interrogator for analysis of a golfer's performance.

A system for a bowling game through a network interconnect includes: an information collection unit collecting bowling game participation information and bowling alley information input from a portable device and a bowling alley server interconnected and accessing a network; a bowling game creation unit creating a team member by applying a penalty for each bowling average of each player based on the collected bowling game participation information; a score management unit calculating scores of each player and each team member, and determining rankings by using a bowling game image of each player transferred from each bowling alley based on the created team member; and a sharing support unit interlocking respective corresponding bowling alley servers with each other, authenticating a player performing the bowling game based on a screen image or motion information photographed, and transferring bowling game related information to the portable device.

Power measurement device for a bicycle trainer, which device is built as a unitary relocatable device comprising an acceleration or velocity sensor, a microcontroller and a memory, wherein the device is equipped with or connectable to a power source, preferably a battery, and wherein the device is equipped with a communication facility to enable the device to wirelessly or through wires communicate with an external application device.

A computer implemented system provides a cruise control function, during a fitness equipment-based workout, to report a power output amount based on a cruise control set-point. The system includes a piece of fitness equipment, a control device, and a computing device. The fitness equipment produces an output corresponding to actual power produced on the fitness equipment. The control device transmits an indication of power being produced to the computing device as an input to a fitness training game. In a first operational state, the indication represents the actual amount of power being produced via operation of the fitness equipment by the user, but in a second operational state, the numerical indication is a virtual power amount corresponding to a cruise control set-point amount established via the control device.

A portable strength training apparatus includes a resistance band having a first end and a second end, a platform base, and a force sensor. The first end of the resistance band is removably coupled to the platform base. The force sensor is removably coupled to the second end of the resistance band. The force sensor includes a force transducer comprising electronic circuitry to measure resistance force values applied to the resistance band.

Embodiments provided herein measure metrics of an athletic action and an object associated therewith, and more particularly, to measuring the metrics and characteristics of a baseball during the wind-up, release, flight, and catch of a pitch sequence. Methods may include: receiving, from at least one motion sensor associated with an object, acceleration data and angular velocity data of the object in response to an athletic action performed on the object; processing the acceleration data to establish vector rotation data between a frame of reference of the object and an Earth frame of reference; applying the vector rotation data to the acceleration data to obtain acceleration of the object in the Earth frame of reference; applying the vector rotation data to the angular velocity data to obtain angular velocity of the object in the Earth frame of reference.

A report of a state of a local exercise device based at least in part on a user response to an electromagnetic resistance unit in the local exercise device is sent. An update based on a state of a remote exercise device is received. The electromagnetic resistance unit is caused to change state in reaction to the received update.

A report of a state of a local exercise device based at least in part on a user response to an electromagnetic resistance unit in the local exercise device is sent. An update based on a state of a remote exercise device is received. The electromagnetic resistance unit is caused to change state in reaction to the received update.

Embodiments provided herein measure metrics of an athletic action and an object associated therewith, and more particularly, to measuring the metrics and characteristics of a baseball during the wind-up, release, flight, and catch of a pitch sequence. Methods may include: receiving, from at least one motion sensor associated with an object, acceleration data and angular velocity data of the object in response to an athletic action performed on the object; processing the acceleration data to establish vector rotation data between a frame of reference of the object and an Earth frame of reference; applying the vector rotation data to the acceleration data to obtain acceleration of the object in the Earth frame of reference; applying the vector rotation data to the angular velocity data to obtain angular velocity of the object in the Earth frame of reference.