Device for determining the speed, distance traversed, elapsed time and calories expended by a person while running
First Claim
1. A device for measuring the speed of a person while running along a surface, said device comprising:
- a foot contact sensing means for sensing when a foot of the runner is in contact with the surface and producing a foot contact signal having a duration proportional to the time the foot is in contact with the surface;
transmitting means connected to said foot contact sensing means for transmitting said foot contact signal;
receiving means for receiving said foot contact signal transmitted by said transmitting means;
processing means connected to said receiving means for calculating, solely from said foot contact signal, an output signal representing the speed of the runner; and
display means connected to the output of said processing means for displaying the speed of the runner in accordance with said output speed signal.
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Accused Products
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.
480 Citations
25 Claims
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1. A device for measuring the speed of a person while running along a surface, said device comprising:
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a foot contact sensing means for sensing when a foot of the runner is in contact with the surface and producing a foot contact signal having a duration proportional to the time the foot is in contact with the surface; transmitting means connected to said foot contact sensing means for transmitting said foot contact signal; receiving means for receiving said foot contact signal transmitted by said transmitting means; processing means connected to said receiving means for calculating, solely from said foot contact signal, an output signal representing the speed of the runner; and display means connected to the output of said processing means for displaying the speed of the runner in accordance with said output speed signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device for measuring the speed of a person while running along a surface, said device comprising:
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a transducer for sensing when a foot of the runner is in contact with the surface and producing a foot contact signal having a duration proportional to the time the foot is in contact with the surface, said transducer being located in the shoe of the runner; a radio frequency transmitter connected to said pressure switch or transducer for transmitting said foot contact signal; a radio frequency receiver for receiving said foot contact signal transmitted by said frequency transmitter; a microprocessor connected to said radio frequency receiver for calculating, soley from said foot contact signal, an output speed signal representing the speed of the runner; and a liquid crystal display connected to the output of said microprocessor for displaying the speed of the runner in accordance with said output speed signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification