G - Physics – 01 – P
Patent
G - Physics
01
P
354/32, 36/6
G01P 3/50 (2006.01) A43B 3/00 (2006.01) G01C 22/00 (2006.01) G04B 47/06 (2006.01) A63B 71/06 (2006.01)
Patent
CA 1218455
A DEVICE FOR DETERMINING THE SPEED, DISTANCE TRAVERSED, ELAPSED TIME AND CALORIES EXPENDED BY A PERSON WHILE RUNNING ABSTRACT A device for measuring the speed of a person while running along a surface is disclosed. A pressure switch or transducer located in a shoe senses when a foot of the runner is in contact with the sur- face and produces a foot contact signal having a duration proportional to the time the foot is in contact with the surface. A radio frequency transmitter is coupled to the pressure switch or transducer and trans- mits the foot contact signal. A radio frequency transmitter receives the foot contact signal transmitted by the frequency transmitter and a microprocessor coupled to the radio frequency receiver calculates, solely from the foot contact signal, an output speed signal representing the speed of the runner. A liquid crystal display coupled to the output of the microprocessor displays the speed of the runner in accordance with the output speed signal.
447050
Nike International Ltd.
Sim & Mcburney
LandOfFree
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