The invention relates to golf clubs, more particularly to mechanisms for fastening accessories to clubs. The invention provides a golf club configured to house an electronic device such as an RFID tag within a recess within the grip, thereby protecting the device from the stress, shock, and exposure that arises when a golf club is used.

A motion measurement apparatus includes an inertial sensor and a host terminal. The inertial sensor measures a motion. The host terminal includes an input section and a control section. The input section is used to input an item identifier allocated to each motion of a user. The control section generates a control signal for controlling a sampling rate of the inertial sensor according to the item identifier which is input via the input section, and outputs the control signal to the inertial sensor.

A motion measurement apparatus includes an inertial sensor and a host terminal. The inertial sensor measures a motion. The host terminal includes an input section and a control section. The input section is used to input an item identifier allocated to each motion of a user. The control section generates a control signal for controlling a sampling rate of the inertial sensor according to the item identifier which is input via the input section, and outputs the control signal to the inertial sensor.

The present disclosure relates to a method for measuring a speed of a sports device. The method includes: acquiring movement data of the sports device during a process of tracking the sports device, the movement data being collected by a sensor disposed at a bottom of the sports device; calculating a linear speed and a rotational speed of the sports device based on accelerations of three axes in the movement data; and combining the linear speed and the rotational speed to obtain a movement speed of the sports device. In addition, the present disclosure also provides an apparatus for measuring a speed of a sports device, which corresponds to the above method. The method and the apparatus for measuring a speed of a sports device can improve the credibility of the speed measurement of the sports device.

The present disclosure relates to a method for measuring a speed of a sports device. The method includes: acquiring movement data of the sports device during a process of tracking the sports device, the movement data being collected by a sensor disposed at a bottom of the sports device; calculating a linear speed and a rotational speed of the sports device based on accelerations of three axes in the movement data; and combining the linear speed and the rotational speed to obtain a movement speed of the sports device. In addition, the present disclosure also provides an apparatus for measuring a speed of a sports device, which corresponds to the above method. The method and the apparatus for measuring a speed of a sports device can improve the credibility of the speed measurement of the sports device.

Provided is a weight pattern determination apparatus for determining, in a golf club having a head capable of mounting one or more weights in a plurality of mounting patterns, the mounting pattern suited to a golfer. The apparatus has an impact point specification unit and a pattern determination unit. The impact point specification unit specifies an impact point distribution of the golfer. The pattern determination unit determines a recommended pattern which is the mounting pattern that approximates a sweet area of the golf club to the impact point distribution. According to the first aspect of the present invention, the impact point distribution of the golfer is specified, and a mounting pattern is determined based on this impact point distribution.

A swing measuring attachment includes a base portion and a protrusion protruding from the base portion, in which the protrusion is provided with a screw thread, the protrusion including a projection at a front end of the protrusion.

A swing measuring attachment includes a base portion and a protrusion protruding from the base portion, in which the protrusion is provided with a screw thread, the protrusion including a projection at a front end of the protrusion.

A sleeve fits over the barrel of a bat. The sleeve defines an opening such that, when the sleeve is applied to the bat, a significant portion of the barrel of the bat is revealed. The sleeve is made of a light-weight, sound-dampening material, such that when the batter hits a pitched ball in an area of the bat covered by the sleeve, the normal “crack” or “ping” of the ball hitting the bat is not heard. Instead, the batter hears a duller, less sharp sound, providing immediate feedback to the batter that he/she did not hit the ball in the desired area of the bat.

A game stick and game are disclosed. The game stick includes a shaft with a head at one end. A channel wide enough for a game ball is defined in the head. The ball is placed in the channel and when the game stick is swung, the ball rides along the channel and is released therefrom to fly through the air. The head may be adjustable to affect the way in which the ball is thrown. The game is similar to golf except that instead of hitting the ball, the ball is thrown toward a target location at the end of a fairway. When the target location is reached, the game stick may be used as a putter to push or putt the ball to sink it into a sunken cup in the ground.