In a first aspect, a system for monitoring a swing is provided that includes (1) a swing measurement device adapted to couple to a swinging object and to output a signal indicative of a characteristic of the swinging object; (2) a wireless transmitter coupled to the swing measurement device and adapted to wirelessly transmit the signal output by the swing measurement device; and (3) a wireless device adapted to receive the wirelessly transmitted signal and to provide information regarding the swinging object based on the received signal. The wireless device is a cellular telephone or personal digital assistant (PDA). Numerous other aspects are provided.

A golf swing training apparatus has a shaft, a housing with a top cap and a bottom cap, and a plurality of weighted discs receivable within the housing. A golfer may adjust the weight of the head of the club by adding or removing weighted discs in the housing. The golf swing training apparatus may comprise an accelerometer within the housing so as to measure the speed, acceleration, and swing path that the club takes for feedback and analysis to improve the golfer's swing.

A method for selecting a most suitable golf club from a set, where the shafts of the set are of different levels of flexibility along the shaft, includes using a pressure sensing mat upon which the player places both feet while carrying out a sample swing to measure forces applied by feet of the player during the stroke. The pressure sensing mat provides output signals indicative of vertical forces, lateral forces, both heel to toe and side to side, lateral speed, both heel to toe and side to side applied by the feet of the player during the swing and a processor operating on the signals selects certain ones of the output signals to calculate a load factor from the selected signals which is used to select one of the set most suitable for use by the player using a color coding system applied to the load factor.

The present invention is to provide a device for sensing golf swing and a method for sensing an impact position on club head using two cameras operated in a stereoscopic manner with each other in the sensing device to accurately calculate the position where the golf ball is impacted on the head-face of the golf club when hitting the golf ball.

A sports simulator may include a piece of sports equipment bearing a marking that is configured to at least partially identify the piece of sports equipment, a first sensor configured to automatically detect the marking and a second sensor configured to detect a trajectory of a ball, and a display configured to display a sports simulation. The sports simulator may also receive an identification of the marking, identify a characteristic of a piece of sports equipment associated with the marking, receive the trajectory of the ball, generate simulation data indicative of a virtual ball with a virtual flight path responsive to the trajectory, store the characteristic of the piece of sports equipment in association with the virtual flight path of the virtual ball, and cause the display to display the virtual flight path of the virtual ball in the sports simulation.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, coordinate dynamic adjustments of a trailer based in part on a user profile associated with a user physically present at the trailer and an activity profile associated with an activity selected to be performed at the trailer. A dynamic adjustment may modify a tilt of a lower surface of the trailer. A dynamic adjustment may modify a dimension(s) of the trailer based in part on a detected object(s). Various dynamic adjustments may occur concurrently, individually and/or sequentially. The trailer may be a moveable trailer for temporary attachment with a vehicle.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, coordinate dynamic adjustments of a trailer based in part on a user profile associated with a user physically present at the trailer and an activity profile associated with an activity selected to be performed at the trailer. A dynamic adjustment may modify a tilt of a lower surface of the trailer. A dynamic adjustment may modify a dimension(s) of the trailer based in part on a detected object(s). Various dynamic adjustments may occur concurrently, individually and/or sequentially. The trailer may be a moveable trailer for temporary attachment with a vehicle.

Implementations generally relate to determining a kinematic sequence. In some implementations, a method includes obtaining a video of a person performing an action. The method further includes determining from the video a plurality of points associated with the person, where the determining of the plurality of points is performed for each frame of the video. The method further includes converting two-dimensional (2D) coordinates of the plurality of points to three-dimensional (3D) coordinates, where the converting is performed for each frame of the video. The method further includes determining a movement of the plurality of points based at least in part on the 3D coordinates.

Herein disclosed is a mobile golf simulation system, more particularly, a double-bayed golf simulator apparatus mounted to a wheeled trailer that may be readily transported and deployed to remote, particularly outdoor locations. The mobile golf simulation system of the present invention is uniquely designed to include a projection system installed beneath a floating floor that, along with right and left drop-down walls, allows for the creation of an open air platform from which a user may play a realistic form of virtual golf, hitting his ball into a built-in screen.

The present embodiments provide systems and methods for aggregating measurements captured by different technologies during a golf swing. By capturing measurements using different technologies, more accurate measurements may be provided to a user by selecting from the measurements, offsetting measurements based on the technologies used, and aligning measurements between devices. Further, by aggregating measurements received from different devices, additional features and functionality may be provided to the user that is absent from any one device used alone. Additionally, by storing the aggregated measurements, users, club fitters and instructors may access and leverage larger databases of measurements to better understand the user's golf swing and to provide better recommendations and instruction to the user.