In some embodiments, an archery bow comprises a riser comprising a cavity and a grip attached to the riser and arranged to cover the cavity. A first limb is supported by the riser and a second limb is supported by the riser. A bowstring extends between the first limb and the second limb. A data device comprises an accelerometer. In some embodiments, the data device is oriented in the cavity and attached to the riser.

A sport apparatus, including a handle, an action portion, a connection portion connecting the handle to the action portion, at least part of the connection portion including a structural battery, the structural battery including one or more energy storage devices, each of the one or more energy storage devices having at least one anode core of a continuous carbon fiber, an electrolyte arranged on the at least one continuous carbon fiber core, and a cathode layer coating arranged to the at least one continuous carbon fiber core on the electrolyte, and at least one sensor unit electrically connected to the energy storage devices, the at least one sensor unit providing signals related to use of the sport apparatus.

An archery assembly and method are disclosed herein. The archery assembly, in an embodiment, includes a coupler configured to be coupled to a riser of an archery bow. At least part of the coupler is configured to be positioned behind a rear surface of the riser. The archery assembly also includes a device configured to be coupled to the coupler. The coupler and the device are configured to cooperate so that the device is adjustably moveable relative to the coupler, and such movement occurs along a vertical axis.

A system for a smart bow includes an accelerometer, a gyroscope, a user interface, and processing circuitry. The accelerometer is configured to measure acceleration of the smart bow. The gyroscope is configured to measure orientation of the smart bow. The processing circuitry is configured to receive the acceleration and the orientation of the smart bow from the accelerometer and the gyroscope. The processing circuitry is configured to perform an analysis on the acceleration and the orientation of the smart bow to identify an action performed with the smart bow. The processing circuitry is configured to operate the user interface to display a result of the analysis.

An archery bow facility for launching an arrow includes a flexible bow and a bow string connected to the bow. A sensor connected to the bow is operable to generate a datastream based on a condition of the bow. A processor and display in communication with the sensor is operable to receive the datastream and to determine a first bow position at a moment of initiation of release when the bowstring is released by a user. The processor, based on the datastream, then operates to determine a second bow position at a moment of conclusion of release when the arrow departs the bowstring. The processor may operate in conjunction with the display to communicate to a user information about the difference between the first and second positions. The first and second position may be first and second angular orientations, and the sensor is preferably a multi-axis accelerometer.

An archery coupling assembly and method are disclosed herein. The archery coupling assembly, in an embodiment, includes a coupler configured to be coupled to a body of an archery bow. The archery coupling assembly also includes a device moveably coupled to the coupler. The device includes a first engager configured to engage a first portion of the body, and the device includes a second engager configured to engage a second portion of the body. The first and second engagers are arranged to at least partially compress the body of the archery bow.

Systems and techniques for facilitating archery implemented in conjunction with a bow mountable laser-based speed measurement instrument or a speed sensor bar as well as a bow movement sensor system which may be affixed to any of the available mounting positions on a conventional bow.

An archery assembly and method are disclosed herein. The archery assembly, in an embodiment, includes a coupler configured to be coupled to a riser of an archery bow. At least part of the coupler is configured to be positioned behind a rear surface of the riser. The archery assembly also includes a device configured to be coupled to the coupler. The coupler and the device are configured to cooperate so that the coupler is adjustably moveable relative to the coupler, and such movement occurs along a vertical axis.

A compound bow includes a riser, an upper limb, and a lower limb, the upper limb and lower limbs coupled to the riser. The compound bow may include a draw sensor. The compound bow includes a performance module coupled to the riser, the performance module operatively coupled to the draw sensor. A compound bow may include an arrow chronometer assembly. A method may include determining draw weight or length based on measurements of the draw sensor. A method may include determining arrow speed based on measurements of the arrow chronometer assembly.

A compound bow includes a riser, an upper limb, and a lower limb, the upper limb and lower limbs coupled to the riser. The compound bow may include a draw sensor. The compound bow includes a performance module coupled to the riser, the performance module operatively coupled to the draw sensor. A compound bow may include an arrow chronometer assembly. A method may include determining draw weight or length based on measurements of the draw sensor. A method may include determining arrow speed based on measurements of the arrow chronometer assembly.