Rotational sensor system
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United States of America Patent
Stats
-
Oct 23, 2001
Issued Date -
N/A
app pub date -
Jun 14, 1999
filing date -
Dec 12, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A device that measures the distance traveled, speed, and height jumped of a person while running or walking. Accelerometers and rotational sensors are placed in the sole of one shoe along with an electronic circuit that performs mathematical calculations to determine the distance and height of each step. A radio frequency transmitter sends the distance and height information to a wristwatch or other central receiving unit. A radio frequency receiver in the wristwatch or other unit is coupled to a microprocessor that calculates an output speed based upon step-distance and elapsed time, and the distance traveled of the runner from the sum of all previous step distances. The output of the microprocessor is coupled to a display that shows the distance traveled, speed, or height jumped of the runner or walker.
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