Boots – shoes – and leggings
Patent
1983-02-09
1986-03-25
Chin, Gary
Boots, shoes, and leggings
364410, 364561, 340323R, 235105, G01C 2200
Patent
active
045787697
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 surface 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 transmits 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.
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Chin Gary
Nike Inc.
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