Patent ID: 7791982
Filing Date: 2010-09-07
Classification: A63B,G01S,H02N

Abstract:
1. A golf ball device that is arranged to emit a radio frequency transmission using energy generated from the impact of the golf ball device with a surface, the golf ball device comprising: an antenna; a radio frequency transmitter system that is located in a central area of an inner core of the golf ball device, wherein the radio frequency transmitter system includes an output that is coupled to the antenna, and wherein the radio frequency transmitter system is arranged to emit the radio frequency transmission via the antenna when powered; an impact power generator that is located in the central area of the inner core of the golf ball device and arranged to generate power in response to impact of the golf ball with the surface, the impact power generator comprising a capacitor circuit, a rectifier circuit and a plurality of piezo-electric devices, wherein the piezo-electric devices are arranged to provide electrical energy to an input of the rectifier circuit in response to mechanical stresses on the piezo-electric devices from the impact of the golf ball with the surface, wherein an output of the rectifier circuit is coupled to the capacitor circuit, wherein the capacitor circuit is arranged to store charge such that the capacitor circuit acts as a temporarily power supply for the golf ball device; and wherein the piezo-electric devices include a first piezo-electric device aligned for maximal energy conversion along an x-axis relative to the central area of the inner core, a second piezo electric device aligned for maximal energy conversion along a y-axis relative to the central area of the inner core, and a third piezo electric device is aligned for maximal energy conversion along a z-axis relative to the central area of the inner core, whereby the x-axis, the y-axis, and the z-axis form an orthogonal set.