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    Apparatus, method and computer program product for obtaining a measure of launch efficiency
    1.
    发明申请
    Apparatus, method and computer program product for obtaining a measure of launch efficiency 审中-公开
    用于获得发射效率测量的装置，方法和计算机程序产品

    公开(公告)号：US20060030431A1

    公开(公告)日：2006-02-09

    申请号：US11158824

    申请日：2005-06-22

    申请人： David Rankin ,  Douglas Winfield

    发明人： David Rankin ,  Douglas Winfield

    IPC分类号： A63B57/00

    CPC分类号： A63B69/3658 ,  A63B24/0021 ,  A63B2024/0031 ,  A63B2220/35

    摘要： A method, apparatus and computer program product are provided that determine a measure of launch efficiency of a ball that is more readily understandable by golfers as being indicative of the quality of a shot. The method, apparatus and computer program product determine a calculated distance of travel of a ball based upon the measured launch conditions that may include the measured club speed. A maximum distance of travel of the ball is then determined. The maximum distance of travel may be determined for a ball struck by a club having the measured club speed and/or for a ball struck by a club having different launch angles and/or spin rate. The measure of launch efficiency is then determined based upon the calculated distance of travel and the maximum distance of travel, such as by forming the ratio of the calculated distance of travel to the maximum distance of travel.

    摘要翻译： 提供了一种方法，装置和计算机程序产品，其确定球员的发射效率的度量，其被高尔夫球手更容易理解为指示射击质量。 方法，装置和计算机程序产品根据可能包括测量的球杆速度的测量的发射条件来确定计算出的球的行进距离。 然后确定球的最大行进距离。 可以通过具有测量的球杆速度的球杆和/或由具有不同发射角和/或旋转速率的球杆击球的球来确定球的最大距离。 然后，基于所计算的行驶距离和最大行驶距离，例如通过形成计算出的行驶距离与最大旅行距离的比例来确定发射效率的度量。

    Multilayer golf ball
    2.
    发明授权
    Multilayer golf ball 失效
    多层高尔夫球

    公开(公告)号：US07160209B2

    公开(公告)日：2007-01-09

    申请号：US10922986

    申请日：2004-08-23

    申请人： Edigio Marotta ,  George Wallace ,  Jim Mann ,  Douglas Winfield

    发明人： Edigio Marotta ,  George Wallace ,  Jim Mann ,  Douglas Winfield

    IPC分类号： A63B37/12

    CPC分类号： C08L75/04 ,  A63B37/0003 ,  A63B37/0009 ,  A63B37/0018 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0046 ,  A63B37/0061 ,  A63B37/0062 ,  A63B37/0064

    摘要： A multilayer golf ball with a solid center diameter in the range of about 1.40 to 1.52 inches, a ionomeric polymer mantle with a thickness of about 0.050 inches, and a hardness in the range of 50 to 55 Shore D and a polyurethane having a cover hardness in the range of 50 to 60 Shore D with a thickness of about 0.050 inches. The compression may be 50–60 PGA. The compression of the core may be 70–80 PGA. The compression of the above exemplary embodiment of the ball may be 80–90 PGA. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.

    摘要翻译： 具有约1.40至1.52英寸范围内的实心中心直径的多层高尔夫球，具有约0.050英寸厚度的离聚物聚合物套和50至55肖氏D的硬度和具有覆盖硬度的聚氨酯 在50至60肖氏D的范围内，厚度约为0.050英寸。 压缩可以是50-60PGA。 芯的压缩可以是70-80PGA。 球的上述示例性实施例的压缩可以是80-90PGA。 具有这种特性的球具有优异的距离性能，而不损害拍摄感觉。

    System, method and computer program product for estimating club swing condition(s) from ball launch measurements
    3.
    发明申请
    System, method and computer program product for estimating club swing condition(s) from ball launch measurements 审中-公开
    用于从球发射测量中估计球杆摆动条件的系统，方法和计算机程序产品

    公开(公告)号：US20060068927A1

    公开(公告)日：2006-03-30

    申请号：US11217223

    申请日：2005-09-01

    申请人： David Rankin ,  Douglas Winfield

    发明人： David Rankin ,  Douglas Winfield

    IPC分类号： A63B69/36

    CPC分类号： A63B24/0003 ,  A63B24/0021 ,  A63B69/0002 ,  A63B69/3658 ,  A63B2024/0031 ,  A63B2220/05 ,  A63B2220/35 ,  A63B2220/806

    摘要： A method, system and computer program product are provided to permit golf swing conditions, such as spin loft, club speed, angle of attack and club path, to be determined without direct measurements of the club swing and, instead, to be based upon the launch conditions of the ball. Initially, a plurality of launch conditions of a ball may be determined, such as by means of a launch monitor. Based upon the launch conditions of the ball, components of momentum 1 PN normal and tangential to the colliding surfaces of the club and the ball may be determined, such as by means of a computing device. At least one club swing parameter may then be determined based upon the normal and tangential components of momentum PN and PT. In this regard, the club swing condition may be spin loft, club speed, angle of attack and/or club path.

    摘要翻译： 提供了一种方法，系统和计算机程序产品，以便在不直接测量球杆摆动的情况下确定高尔夫挥杆条件，例如旋转摆放，球杆速度，迎角和球杆路径，而不是基于 发射条件的球。 最初，可以例如通过发射监视器来确定球的多个发射条件。 基于球的发射条件，可以例如借助于计算装置来确定与球杆和球的碰撞表面正交并相切的动量分量1 P N N N N。 然后可以基于动量P N N和P T T的正态分量和切向分量来确定至少一个球杆摆动参数。 在这方面，俱乐部的摆动条件可以是旋转阁楼，球杆速度，攻角和/或球杆路径。

    Method for determining aerodynamic characteristics of a golf ball
    5.
    发明授权
    Method for determining aerodynamic characteristics of a golf ball 有权
    确定高尔夫球的空气动力特性的方法

    公开(公告)号：US06285445B1

    公开(公告)日：2001-09-04

    申请号：US09398367

    申请日：1999-09-17

    申请人： Douglas Winfield ,  William Gobush

    发明人： Douglas Winfield ,  William Gobush

    IPC分类号： G01P336

    CPC分类号： G01P3/68

    摘要： A method for determining the lift and drag coefficients of a golf ball includes launching the ball along a flight path, measuring the velocity at two positions along the flight path, using the measured velocities to determine the coefficients of lift and drag. The step of measuring the velocity includes taking two images of the ball at the two positions, where the time interval between images at each position is less than about 0.01 seconds.

    摘要翻译： 用于确定高尔夫球的升力和阻力系数的方法包括沿着飞行路径发射球，使用所测量的速度来测量沿着飞行路径的两个位置处的速度，以确定升力和阻力的系数。 测量速度的步骤包括在两个位置拍摄两个图像，其中每个位置的图像之间的时间间隔小于约0.01秒。

    Method for determining coefficients of lift and drag of a golf ball
    6.
    发明授权
    Method for determining coefficients of lift and drag of a golf ball 失效
    确定高尔夫球的升力和阻力系数的方法

    公开(公告)号：US06186002B1

    公开(公告)日：2001-02-13

    申请号：US09063568

    申请日：1998-04-21

    申请人： Burton B. Lieberman ,  Alexander J. Smits ,  Steven J. Quintavalla ,  Frank W. Thomas ,  Douglas Winfield

    发明人： Burton B. Lieberman ,  Alexander J. Smits ,  Steven J. Quintavalla ,  Frank W. Thomas ,  Douglas Winfield

    IPC分类号： A63B3714

    CPC分类号： A63B24/0021 ,  A63B69/3658 ,  A63B2024/0034 ,  A63B2220/35

    摘要： A method is provided for determining at least one of the coefficient of lift and the coefficient of drag of a golf ball for a given range of velocities and a given range of spin rates from launch. A method is also described for simulating the flight of a golf ball in a computer. A ball is launched at a selected velocity, spin rate and launch angle. Calculations are made of the x and y coordinates of the ball during flight and the coefficients of lift and/or drag are calculated mathematically in dependence on the launch velocity, spin rate, angle and calculated x and y coordinates. Repeated launchings are made to obtain a plurality of mathematically calculated values of the coefficient(s). Thereafter, an aerodynamic model for the flight of the ball is mathematically determined in dependence upon the mathematically calculated values of at least one of the coefficients relative to the velocity and spin rate.

    摘要翻译： 提供了一种用于在给定的速度范围和从发射的给定旋转速率范围中确定高尔夫球的升力系数和阻力系数中的至少一个的方法。 还描述了一种用于模拟计算机中高尔夫球飞行的方法。 以选定的速度，旋转速率和发射角度发射球。 在飞行期间计算球的x和y坐标，并且根据发射速度，旋转速率，角度和计算的x和y坐标在数学上计算升力和/或阻力系数。 进行重复发射以获得多个数学计算的系数值。 此后，根据相对于速度和旋转速率的至少一个系数的数学计算值，数学地确定球的飞行的空气动力学模型。