Launch monitor system and a method for use thereof

• US 6,758,759 B2
• Filed: 02/14/2001
• Issued: 07/06/2004
• Est. Priority Date: 02/14/2001
• Status: Expired due to Term

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Pelletier, Diane I., Days, Charles A., Winfield, Douglas C., Gobush, William
• Primary Examiner(s): NGUYEN, KIM T
• Application Number:
  US09/782,278
• Publication Number:
  US 20020155896A1
• Time in Patent Office: 1,238 Days
• Field of Search: 473/131, 473/150-156, 473/140-141, 473/219-226, 434/247, 434/252, 434/257
• US Class Current: 473/131
• CPC Class Codes: A63B 2024/0031 at the starting point
• CPC Class Codes: A63B 2024/0034 during flight
• CPC Class Codes: A63B 2024/0043 Systems for locating the point of impact on a specific surface
• CPC Class Codes: A63B 2102/32 Golf
• CPC Class Codes: A63B 2220/05 Image processing for measuring physical parameters
• CPC Class Codes: A63B 2220/20 Distances or displacements
• CPC Class Codes: A63B 2220/24 Angular displacement
• CPC Class Codes: A63B 2220/30 Speed
• CPC Class Codes: A63B 2220/35 Spin
• CPC Class Codes: A63B 2220/40 Acceleration
• CPC Class Codes: A63B 2220/803 Motion sensors
• CPC Class Codes: A63B 2220/806 Video cameras
• CPC Class Codes: A63B 2220/807 Photo cameras
• CPC Class Codes: A63B 2225/74 with powered illuminating means, e.g. lights
• CPC Class Codes: A63B 24/0003 Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
• CPC Class Codes: A63B 24/0006 Computerised comparison for qualitative assessment of motion sequences or the course of a movement
• CPC Class Codes: A63B 24/0021 Tracking a path or terminating locations
• CPC Class Codes: A63B 43/008 with means for improving visibility, e.g. special markings or colours illuminating or reflecting means A63B43/06
• CPC Class Codes: A63B 60/42 Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
• CPC Class Codes: A63B 60/54 with means for damping vibrations
• CPC Class Codes: A63B 69/3614 : using electro-magnetic, magnetic or ultrasonic radiation emitted, reflected or interrupted by the golf club
• CPC Class Codes: A63B 69/3623 : for driving A63B69/3608, A63B69/3658, A63B69/3661, A63B69/3667 and A63B69/3691 take precedence
• CPC Class Codes: A63B 69/3658 : Means associated with the ball for indicating or measuring, e.g. speed, direction
• CPC Class Codes: A63B 71/06 : Indicating or scoring devices for games or players , or for other sports activities

Abstract

The present invention is directed to a launch monitor system that measures club motion data and ball motion data. The system includes a club monitor and a ball monitor. The club monitor obtains images of the club before impact with the ball, and the ball monitor takes images of the ball after impact during a single swing. The present invention further includes a method of monitoring a club and ball in a single swing.

Claims

1. A launch monitor system for measuring data for a club and a ball moving in a predetermined field-of-view, the system comprising:

at least one club camera pointed toward the predetermined field-of-view, and positioned in a first plane, each club camera obtains at least two club images in the predetermined field-of-view;

at least one ball camera pointed toward the predetermined filed-of-view, and positioned in a second plane spaced vertically from the first plane, each ball camera obtains at least two ball images in the predetermined field-of-view; and

a computer to determine club motion data from the club images and ball motion data from the ball images.

2. The launch monitor system of claim 1, wherein the first plane is spaced vertically above the second plane.

3. The launch monitor system of claim 2, further including at least two ball cameras, each camera taking at least one image of the ball.

4. The launch monitor system of claim 3, further including at least one second sensor for activating each ball camera to obtain the images of the ball after the club impacts the ball during a swing.

5. The launch monitor system of claim 4, wherein the club motion data is at least three-dimensional.

6. The launch monitor system of claim 4, wherein the ball motion data is at least three-dimensional.

7. The launch monitor system of claim 1, further including at least two club cameras, each camera taking at least one image of the club.

8. The launch monitor system of claim 1, further including at least one strobe light associated with each of the club and ball cameras.

9. The launch monitor system of claim 1, further including at least one first sensor for activating each club camera to obtain the first image of the club before the club impacts the ball during a swing.

10. The launch monitor system of claim 1, wherein the club motion data is at least two-dimensional.

11. The launch monitor system of claim 1, wherein the ball motion data is at least two-dimensional.

12. The launch monitor system of claim 1, wherein the club includes at least two contrasting areas thereon.

13. The launch monitor system of claim 1, wherein the club further includes a head, a hosel, a shaft, a first contrasting area on the head, a second contrasting area on the hosel, and a third contrasting area on the shaft.

14. The launch monitor system of claim 1, wherein the ball includes at least one contrasting area thereon.

15. The launch monitor system of claim 1, wherein the ball includes six contrasting areas thereon.

16. The launch monitor system of claim 1, wherein the club images include an image of the ball on a tee.

17. A launch monitor system for measuring data for a club and a ball moving in a predetermined field-of-view, the system comprising:

at least one club camera pointed toward the predetermined field-of-view, each club camera obtains at least two club images in the predetermined field-of-view;

at least one ball camera pointed toward the predetermined filed-of-view, each ball camera obtains at least two ball images in the predetermined field-of-view;

each of the club and ball cameras are located on the same side of the club and ball, and a computer to determine club motion data from the club images and ball motion data from the ball images.

18. The launch monitor system of claim 17, wherein the club includes at least two contrasting areas thereon and the ball includes at least one contrasting area thereon, and the club images include at least all of the club contrasting areas and the ball images include at least all of the ball contrasting areas.

19. A method of calculating club motion data and ball motion data using a launch monitor system, said method comprising the steps of:

a golfer swinging a club to impact a ball;

obtaining at least two club images during the swing at two different times;

obtaining at least two ball images at two different times during the swing;

determining the club motion data from the club images; and

determining the ball motion data from the ball images;

wherein the club images are obtained before the club impacts the ball and the ball images are obtained after the club impacts the ball during a swing.

20. A method of claim 19, wherein the step of determining the club motion data includes determining at least one of the following:

speed, acceleration, loft angle, attack angle, path angle, face angle, droop angle, loft spin, face spin, droop spin, and hit location.

21. A method of claim 19, wherein the step of determining the ball motion data includes determining at least one of the following:

velocity, launch angle, backspin, side angle, side spin rifling spin, carry distance, direction, and carry and roll distance.

22. The method of claim 19, wherein each club image is obtained during a downswing.

23. The method of claim 19, wherein each club image is obtained during a back swing.