FOOTBALL SENSING
First Claim
1. A football sensing system comprising:
- an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis;
at least one accelerometer carried by the football to sense acceleration of the football along at least a first axis, the accelerometer sized to sense a predetermined maximum value of acceleration in the first axis, the accelerometer being positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football, the accelerometer in the first position being capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis.
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Abstract
A football sensing system including an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis and at least one accelerometer carried by the football to sense acceleration of the football along at least a first axis. The accelerometer is sized to sense a predetermined maximum value of acceleration in the first axis. The accelerometer is positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football. The accelerometer in the first position is capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis.
30 Citations
17 Claims
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1. A football sensing system comprising:
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an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis; at least one accelerometer carried by the football to sense acceleration of the football along at least a first axis, the accelerometer sized to sense a predetermined maximum value of acceleration in the first axis, the accelerometer being positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football, the accelerometer in the first position being capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A football sensing system comprising:
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an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis extending along a transverse plane; at least first and second accelerometers carried by the football to sense acceleration of the football in at least one axis, the first and second accelerometers positioned on opposite sides of the longitudinal axis and spaced apart by a predetermined transverse distance, the first and second accelerometers configured to measure the centripedal acceleration of the football in first and second directions parallel to or in line with the transverse plane, a processor operably coupled to the first and second accelerometers, the processor configured to receive signals from the first and second accelerometers representing the acceleration of the football in the first and second directions, the processor configured to process the acceleration signals and the predetermined transverse distance to calculate a spin rate of the football about the longitudinal axis. - View Dependent Claims (15, 16)
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17. A football sensing system comprising:
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an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis; at least a first accelerometer carried by the football to sense acceleration of the football in at least one axis, the first accelerometer spaced apart from the longitudinal axis by a predetermined transverse distance, the first accelerometer configured to measure the acceleration of the football in a first direction parallel to the longitudinal axis, a processor operably coupled to the first accelerometer, the processor configured to receive signals from the first accelerometer representing the acceleration of the football in the first direction, the processor configured to process the acceleration signals to calculate a spiral efficiency about the longitudinal axis when the football is thrown or kicked.
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Specification