Patent ID: 7883428
Filing Date: 2011-02-08
Classification: A63B

Abstract:
1. A system for automatically tracking a golf club swung by a golfer, the system comprising: a plurality of golf clubs, each of the plurality of golf clubs comprising a device attached to a grip which is attached to a shaft which is attached to a golf club head, the device comprising a power source, a shock switch and a RFID component, wherein impact of a golf club of the plurality of golf clubs swung by the golfer closes the shock switch to provide an electrical current from the power source to the RFID component for transmission of a signal comprising a type of golf club impacted, the power source comprising a battery, a resistor and a 1 micro-Farad capacitor, the RFID component comprising a RFID transponder and a processor, the shock switch having a supply current of 0.004 micro-amps; a receiver for receiving the signal from the RFID component, wherein the receiver is a GPS unit, wherein the receiver stores data for each shot swung by the golfer for a round of golf; wherein the device has a 2 milliamps limit for transmission of the signal to the receiver, wherein after impact with a golf ball, the shock switch is closed allowing power to flow from the capacitor to the RFID component for transmission of the signal, and wherein the resistor minimizes an electrical current flow to the capacitor to allow the capacitor to be charged at a controlled rate from the battery.