Mobile speedometer system and associated methods
DCFirst Claim
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1. A method for determining one or both of speed and distance traveled of a sportsman during motion, comprising the steps of:
- sensing acceleration of the sportsman during the motion;
processing the acceleration to determine airtime of the sportsman;
processing data representative of the acceleration and airtime to determine at least one of speed and distance traveled; and
generating timing information via a clock attached to the sportsman to provide timing signals used in determining at least one of the speed and distance traveled.
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Abstract
The invention detects loft time and/or speed of a vehicle and/or person during activities of moving and jumping. A loft sensor detects leaving the ground and returning to the ground. A microprocessor subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. A speed sensor can detect speed for selective display to the user, and height may also be determined during airtime.
163 Citations
18 Claims
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1. A method for determining one or both of speed and distance traveled of a sportsman during motion, comprising the steps of:
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sensing acceleration of the sportsman during the motion;
processing the acceleration to determine airtime of the sportsman;
processing data representative of the acceleration and airtime to determine at least one of speed and distance traveled; and
generating timing information via a clock attached to the sportsman to provide timing signals used in determining at least one of the speed and distance traveled. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. The method of determining speed of a human-powered sporting vehicle, comprising the steps of:
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attaching a sensor to the vehicle;
sensing a multi-frequency spectrum of information with the sensor;
correlating the multi-frequency spectrum of information to stored information in the sensor to determine the speed, the multi-frequency spectrum of information comprising one or both of acceleration and sound data associated with movement of human-powered vehicle over a surface, the stored information comprising one or both of reference acceleration and sound data associated with movement of the human-powered vehicle over the surface; and
processing The multi-frequency spectrum of information through a state machine of the sensor. - View Dependent Claims (9)
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10. A method for determining loft time of a sportsman moving over a surface, comprising the steps of:
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sensing a multi-frequency spectrum of information associated with movement of the sportsman on the surface;
processing the multi-frequency spectrum of information to detect a first condition indicative of the sportsman leaving the surface, and a second condition indicative of the sportsman returning to the surface;
determining the loft time based upon an elapsed time between the first and second conditions; and
processing the multi-frequency spectrum of information through a state machine attached with the sportsman. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for determining non-motorized vehicle speed along a surface, the non-motorized vehicle of the type which is ridden along the surface by a user, comprising the steps of:
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monitoring a pitch of the non-motorized vehicle caused by the motion of the non-motorized vehicle relative to the surface;
correlating the pitch to a speed; and
informing the user of the speed. - View Dependent Claims (17, 18)
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Specification