A golf club having a sensor that is releasably connected is disclosed, where the sensor comprises a plurality of inertial measurement units. Each inertial measurement unit is able to measure linear accelerations along three orthogonal axes and angular rates of rotation along the same three orthogonal axes. Each inertial measurement unit is positioned such that at least two of the axes of each inertial measurement unit are oriented differently. Additionally, a process may be implemented by a processor to expand the measurement range of the sensor.

An Internet of Thing (IoT) device includes a body with a processor, a camera and a wireless transceiver coupled to the processor.

A golf ball head includes a head unit and an insertion unit. The insertion unit includes a housing body, an intelligent unit and an encapsulant. The housing body is threaded into an installation hole of the head unit, defines a receiving space, and has a base wall, a surrounding wall, an external thread for threadedly engaging the internal thread, and a recess formed in the base wall. The intelligent unit is received in the receiving space, and includes a circuit board, two charging electrodes disposed on the first circuit board, and a capacitor connected to the first circuit board and the charging electrodes. The encapsulant is received in the receiving space and exposes the charging electrodes.

A watch can include a wrist strap, memory, an accelerometer, and a pressure sensor that responds to muscle movement at a wrist. Various other devices, systems, methods, etc., are also disclosed.

A display method includes generating first analysis information related to at least one of a ball shooting direction and a ball curving form swing on the basis of a plurality of pieces of data related to a plurality of swings, output from an inertial sensor which is attached to a user or an exercise appliance swung by the user and measures the plurality of swings performed by the user, and generating a first region image on the basis of the first analysis information, in which the first region image includes a plurality of time-series region images, and the plurality of time-series region images are displayed in a coordinate system having at least two indexes as axes.

A display method includes generating first analysis information related to at least one of a ball shooting direction and a ball curving form swing on the basis of a plurality of pieces of data related to a plurality of swings, output from an inertial sensor which is attached to a user or an exercise appliance swung by the user and measures the plurality of swings performed by the user, and generating a first region image on the basis of the first analysis information, in which the first region image includes a plurality of time-series region images, and the plurality of time-series region images are displayed in a coordinate system having at least two indexes as axes.

A display method includes generating first analysis information on the basis of a plurality of pieces of data related to a plurality of swings, output from an inertial sensor which is attached to a user or an exercise appliance swung by the user and measures the plurality of swings performed by the user, generating a first region image including a plurality of time-series region images on the basis of the first analysis information, and displaying the plurality of time-series region images in a coordinate system having at least two indexes as axes.

A display method includes generating first analysis information on the basis of a plurality of pieces of data related to a plurality of swings, output from an inertial sensor which is attached to a user or an exercise appliance swung by the user and measures the plurality of swings performed by the user, generating a first region image including a plurality of time-series region images on the basis of the first analysis information, and displaying the plurality of time-series region images in a coordinate system having at least two indexes as axes.

A display method includes generating first analysis information on the basis of a plurality of pieces of data related to a plurality of swings, output from an inertial sensor which is attached to a user or an exercise appliance swung by the user and measures the plurality of swings performed by the user, estimating respective ball arrival positions corresponding to the plurality of swings on the basis of the first analysis information, and displaying a first region image in a coordinate system having at least two indexes as axes on the basis of the respective ball arrival positions.

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.