IP Library Granted Patent US 7,946,926
Granted Patent B1
US 7,946,926 · App. 12/698,030 · Granted May 24, 2011

Shot tracking

Assignee: Callaway Golf Company
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Quick Facts
Patent No.
US 7,946,926
App. No.
12/698,030
Granted
May 24, 2011
Kind
B1
Abstract

The present invention relates to shot tracking. More specifically, the present invention relates to a method and system for tracking shots of a golfer during a round of golf. One aspect of the present invention is a system for automatically tracking a golf club swung by a golfer. The system comprises a plurality of golf clubs. Each of the plurality of golf clubs comprises a device attached to a grip which is attached to a shaft which is attached to a golf club head. The device comprises a power source, a shock switch and a RFID component.

Claims (5)

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 shaft and a golf club head, the shaft having a device comprising an accelerometer in electrical communication with an active radiofrequency component, the accelerometer temporarily closing a switch during impact with a golf ball to provide power from a power source to the active radiofrequency component for transmission of a signal, wherein the signal comprises the type of club and force of the shot, each device further comprising a resistor and a capacitor, and the power source comprising a battery limited to 75 milliamps of power, wherein the resistor controls a rate at which the capacitor is charged from the battery in order to conserve power;

a receiver for receiving the signal from the active radiofrequency component, wherein the receiver is a GPS unit, wherein the receiver stores data for each shot by the golfer for a round of golf;

wherein in order to conserve battery power, the active radiofrequency component transmits the signal until a confirmation signal is received by the receiver or until a threshold number of signals are sent from the active radiofrequency component without the confirmation signal, the threshold number of signals ranging from 20 to 50.

Assignments (8)
RELEASE OF SECURITY INTEREST AT REEL/FRAME 063665/0176 Recorded Jun 1, 2026
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: CALLAWAY GOLF COMPANY (F/K/A TOPGOLF CALLAWAY BRANDS CORP.); TRAVISMATHEW, LLC; OGIO INTERNATIONAL, INC.; WORLD GOLF TOUR, LLC
Reel/Frame 075834/0150 →
SECURITY INTEREST Recorded May 17, 2023
From: TOPGOLF CALLAWAY BRANDS CORP.; OGIO INTERNATIONAL, INC.; TOPGOLF INTERNATIONAL, INC.; TRAVISMATHEW, LLC; WORLD GOLF TOUR, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 063692/0009 →
SECURITY AGREEMENT Recorded May 16, 2023
From: TOPGOLF CALLAWAY BRANDS CORP. (FORMERLY CALLAWAY GOLF COMPANY); OGIO INTERNATIONAL, INC.; TOPGOLF INTERNATIONAL, INC.; TRAVISMATHEW, LLC; WORLD GOLF TOUR, LLC
To: BANK OF AMERICA, N.A, AS COLLATERAL AGENT
Reel/Frame 063665/0176 →
RELEASE (REEL 048172 / FRAME 0001) Recorded Mar 17, 2023
From: BANK OF AMERICA, N.A.
To: TOPGOLF CALLAWAY BRANDS CORP. (F/K/A CALLAWAY GOLF COMPANY); OGIO INTERNATIONAL, INC.
Reel/Frame 063622/0187 →
SECURITY INTEREST Recorded Jan 23, 2019
From: CALLAWAY GOLF COMPANY; CALLAWAY GOLF SALES COMPANY; CALLAWAY GOLF BALL OPERATIONS, INC.; OGIO INTERNATIONAL, INC.; CALLAWAY GOLF INTERACTIVE, INC.; CALLAWAY GOLF INTERNATIONAL SALES COMPANY; TRAVISMATHEW, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 048110/0352 →
SECURITY AGREEMENT Recorded Jan 4, 2019
From: CALLAWAY GOLF COMPANY; OGIO INTERNATIONAL, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 048172/0001 →
SECURITY INTEREST Recorded Feb 16, 2018
From: CALLAWAY GOLF COMPANY; CALLAWAY GOLF SALES COMPANY; CALLAWAY GOLF BALL OPERATIONS, INC.; OGIO INTERNATIONAL, INC.; CALLAWAY GOLF INTERACTIVE, INC.; CALLAWAY GOLF INTERNATIONAL SALES COMPANY
To: BANK OF AMERICA, N.A.
Reel/Frame 045350/0741 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2010
From: BALARDETA, JOSEPH; DENTON, SCOTT
To: CALLAWAY GOLF COMPANY
Reel/Frame 023880/0597 →