Adjustable athletic training system
First Claim
1. An apparatus, for indicating the position of a body part, comprising:
- a position sensor for sensing a direction and magnitude of tilt, said position sensor including a first tilt sensor mounted at right angles to a second tilt sensor, said first tilt sensor producing a first output voltage and said second tilt sensor producing a second output voltage, said first and second output voltages proportional to the direction and magnitude of tilt of said first and second tilt sensors;
means for mounting said sensor on the body part;
means, coupled to said position sensor, for sampling said first and second output voltages as digital values;
means for converting said digital values to an angular position;
means for counting the length of time said position sensor is positioned at a particular angular position;
means, responsive to said means for counting, for signalling said particular angular position.
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Accused Products
Abstract
An athletic training system includes a position processor which can be mounted on the head of an athlete by means of, for example, a head band. The position processor includes a sensor in the form of two tilt sensors mounted at right angles to each other. The direction of tilt is sampled by a microprocessor as output voltages from the sensors for further processing. Software of the microprocessor processes the sensed directions by filtering and hysterisis algorithms in order to eliminate rapid changes of state of the switches of the sensor due to sporadic movement caused by the motion of the athlete. The positional information is conveyed to the athlete as a pattern of lights and tones. Proper and improper head positions are indicated for a plurality of directions of tilt. The training system is user controllable by means of rotary switches to adjust, among other things, the level of sensitivity of the system. The system can also self-center by adjusting all sampled directions by a sampled reference value.
193 Citations
17 Claims
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1. An apparatus, for indicating the position of a body part, comprising:
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a position sensor for sensing a direction and magnitude of tilt, said position sensor including a first tilt sensor mounted at right angles to a second tilt sensor, said first tilt sensor producing a first output voltage and said second tilt sensor producing a second output voltage, said first and second output voltages proportional to the direction and magnitude of tilt of said first and second tilt sensors; means for mounting said sensor on the body part; means, coupled to said position sensor, for sampling said first and second output voltages as digital values; means for converting said digital values to an angular position; means for counting the length of time said position sensor is positioned at a particular angular position; means, responsive to said means for counting, for signalling said particular angular position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus, for training an athlete, comprising;
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means, mounted on the athlete, for sensing directions and magnitudes of tilt as a plurality of pairs of voltage values; means for converting each pair of voltage values to a pair of digital values; means for selecting a particular pair of digital values as reference values; means for adjusting each subsequently sampled pair of digital values by said reference values to generate an adjusted pair of digital values; means for converting said adjusted pair of digital values to a direction of tilt signal and a magnitude of tilt signal. - View Dependent Claims (9, 10, 11, 12)
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13. A method for sensing the position of a body part, comprising the steps of:
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sensing a reference direction and magnitude of tilt by a tilt sensor mounted on the body part; sensing an arbitrary direction and magnitude of tilt by said tilt sensor; adjusting said arbitrary direction and magnitude of tilt by said reference direction and magnitude of tilt to generate a normalized direction and magnitude of tilt; signaling said normalized direction and magnitude of tilt. - View Dependent Claims (14, 15, 16, 17)
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Specification