Patent ID: 8992346
Filing Date: 2015-03-31
Classification: A63B,G01C,G01S

Abstract:
1. A method for tracking a golfer's round of golf, the method comprising: determining a first location of a GPS device for a golfer on a golf course; receiving at the GPS device a first signal packet from a first golf club of the golfer that the first golf club struck a golf ball at the first location, the first signal packet comprising a backswing length, a downswing length, a backswing relative speed and a downswing relative speed; storing on the GPS device the first location on the golf course, an identification of the first golf club, a time that the first golf club struck the golf ball at the first location, the backswing length, the downswing length, the backswing relative speed and the downswing relative speed; determining a second location of the GPS device for the golfer on the golf course; receiving at the GPS device a second signal packet from a second golf club of the golfer that the second golf club struck the golf ball at the second location the first signal packet comprising a backswing length, a downswing length, a backswing relative speed and a downswing relative speed; determining a distance from the first location to the second location; and storing the distance as a distance for a first shot of the golfer, and storing the backswing length, the downswing length, the backswing relative speed and the downswing relative speed for each shot by the golfer; wherein the signal packet is sent from a device positioned within a grip of a golf club, the device comprising: a housing; a battery having no more than 225 milliamp hours of power, the battery positioned within the housing; a microprocessor positioned within the housing, the microprocessor in electrical communication with the battery, the microprocessor operating during a sleep mode, a sampling mode, an analysis mode, a monitoring mode and a transmission mode; a multi-axis accelerometer for determining movement, monitoring movement and communicating the movement to the microprocessor, the multi-axis accelerometer positioned within the housing, the multi-axis accelerometer in electrical communication with the microprocessor, the power for the multi-axis accelerometer drawn from the battery, the multi-axis accelerometer only active during the sampling mode, the analysis mode and the monitoring mode; a radiofrequency component positioned within the housing, the radiofrequency component in electrical communication with the microprocessor, the radiofrequency component operating at 2.4 giga-Hertz, the power for the radiofrequency component drawn from the battery, the radiofrequency component only operable during a transmission mode, transmitting a signal from the radiofrequency component during the transmission mode, the signal comprising data related to the movement monitored by the multi-axis accelerometer; wherein the device consumes less than 600 nano-amps during the sleep mode, the sleep mode having a time period ranging from 10 seconds to 30 seconds; wherein the device consumes less than 15 micro-amps during the sampling mode; wherein the device consumes less than 50 micro-amps during the analysis mode; wherein the device consumes less than 200 micro-amps during the monitoring mode; and wherein the device consumes less than 12 milli-amps during the transmission mode.