Electronic shoe wear indicator
First Claim
Patent Images
1. A method of determining an amount of wear of a shoe, the method comprising:
- measuring a first amount of shock transmitted by the athletic shoe;
retrieving a shock limit factor SL as a function of a material in a midsole of the athletic shoe;
retrieving a weight factor UW and a height factor UH; and
determining a wear factor value WF representing the amount of wear of the shoe as a function of the shock limit SL, the weight factor UW, the height factor UH, and the measured first amount of transmitted shock.
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Abstract
A system measures an amount of wear in athletic footwear by measuring the amount of shock transmitted to a user. The measured shock is used to indicate an amount of how much cushioning has been lost by the footwear. The amount of wear is proportional to the loss of cushioning and an increase in transmitted shock to the user.
23 Citations
32 Claims
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1. A method of determining an amount of wear of a shoe, the method comprising:
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measuring a first amount of shock transmitted by the athletic shoe; retrieving a shock limit factor SL as a function of a material in a midsole of the athletic shoe; retrieving a weight factor UW and a height factor UH; and determining a wear factor value WF representing the amount of wear of the shoe as a function of the shock limit SL, the weight factor UW, the height factor UH, and the measured first amount of transmitted shock. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of determining cushioning capacity of a device, the method comprising:
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measuring, with a first sensor, an initial shock value during a first time of operation of the device in a predetermined manner; storing the initial measurement of shock value; operating the device in the predetermined manner at a second time subsequent to the first time of operation; measuring, with the first sensor, an amount of shock transmitted by the device during the operation of the device; and determining the cushioning capacity of the device as a function of the measured amount of shock transmitted by the device and the initial measurement of shock value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for determining an amount of wear of an athletic shoe, comprising a first memory containing a wear measurement program and a first processor operative to execute said wear measurement program, the wear measurement program comprising:
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program code for measuring a first amount of shock transmitted by the athletic shoe; program code for retrieving a shock limit factor SL corresponding to a material in a midsole of the athletic shoe; program code for retrieving a weight factor UW and a height factor UH; and program code for determining a wear factor value WF as a function of the shock limit SL, the weight factor UW, the height factor UH, and the measured first amount of transmitted shock. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification