Golf swing frequency analyzer
DCFirst Claim
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1. A golf swing analyzer in combination with a golf club having a shaft, the combination comprising:
- (a) a housing grippingly enclosing a discrete length of the golf club shaft, wherein the housing is removably mounted to, and substantially coaxial with, the golf club shaft;
(d) an accelerometer mounted within the housing;
(e) a microprocessor mounted within the housing and connected to the accelerometer for processing acceleration measurements made by the accelerometer;
(f) a data storage mounted within the housing, and connected to the microprocessor; and
(g) an output port connected to the microprocessor.
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Abstract
A golf swing analyzer that can be attached to a golf club shaft. The analyzer includes a housing with an integral shaft mount. The housing contains an internal chamber in which an accelerometer, microprocessor and data storage are contained, and an output display screen mounted to the housing. The analyzer measures acceleration during a golfer'"'"'s swing and calculates the frequency of a club that would be straight at ball impact.
129 Citations
28 Claims
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1. A golf swing analyzer in combination with a golf club having a shaft, the combination comprising:
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(a) a housing grippingly enclosing a discrete length of the golf club shaft, wherein the housing is removably mounted to, and substantially coaxial with, the golf club shaft;
(d) an accelerometer mounted within the housing;
(e) a microprocessor mounted within the housing and connected to the accelerometer for processing acceleration measurements made by the accelerometer;
(f) a data storage mounted within the housing, and connected to the microprocessor; and
(g) an output port connected to the microprocessor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of matching a golf club of a preferred frequency to a golfer'"'"'s golf swing, the method comprising:
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(a) said golfer swinging a golf club;
(b) measuring acceleration of the golf club at multiple times during swinging;
(c) selecting a maximum acceleration datum;
(d) selecting a first datum and a second datum, said first datum being an acceleration quantity measured a predetermined time before the maximum acceleration datum, and said second datum being an acceleration quantity measured a time after the maximum acceleration datum, said time being substantially similar to said predetermined time;
(e) fitting a substantially parabolic curve through the first datum, the second datum and the maximum acceleration datum;
(f) determining a new maximum acceleration datum;
(g) determining a swing time between said new maximum acceleration datum and impact of the golf club with a golf ball; and
(h) calculating swing frequency according to the equation - View Dependent Claims (12, 13, 14)
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15. A method of matching a golf club of a preferred frequency to a golfer'"'"'s golf swing, the method comprising:
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(a) said golfer swinging a golf club;
(b) measuring acceleration of the golf club at multiple times during swinging until at least ball impact;
(c) selecting an acceleration datum candidate from an acceleration data set;
(d) determining a difference, for each acceleration datum between the acceleration datum candidate and a ball impact datum, between each acceleration datum and ys, where ys=(sin Θ
) (yc), yc is the acceleration datum candidate and Θ
increases from 90°
to 180°
in substantially as many steps as there are acceleration data from the acceleration datum candidate to ball impact;
(e) selecting the acceleration datum candidate as the release point when a sum of the differences between the acceleration datum and ys is positive for all acceleration datum between the acceleration datum candidate and ball impact;
(f) determining a swing time between said release point and ball impact; and
(g) determining swing frequency according to the equation - View Dependent Claims (16, 17, 18, 19)
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20. A golf swing analyzer attachable to a golf club, the analyzer comprising:
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(a) a housing comprising (i) first and second shells pivotably mounted at an adjoining edge at a hinge;
(ii) shaft receiving, inwardly facing surfaces on opposite ends of each shell for seating against and grippingly engaging an outer surface of a golf club shaft;
(iii) retaining latches pivotably mounted at opposite ends of at least one of the shells for pivoting into a locked position;
(b) an accelerometer mounted within the housing;
(c) a microprocessor mounted within the housing and connected to the accelerometer for processing acceleration measurements made by the accelerometer;
(d) a data storage mounted within the housing, and connected to the microprocessor; and
(e) an output port connected to the microprocessor. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification