Fish & Richardson P.C.
Shoe with step counting capability
 A shoe has a step counting capability and includes a shoe body to be worn on a foot of a wearer, a step detector, and transmitter and receiver devices. The shoe body includes a vamp and a sole which is mounted on the vamp and which has an outer sole portion formed with a receiving space, and an inner sole portion disposed on top of the outer sole portion. The step detector is disposed in the receiving space and includes a piezoelectric unit which generates a voltage output when subjected to impact, and an impact unit which is disposed adjacent to the piezoelectric unit and which is associated operably with the inner sole portion so as to impact the piezoelectric unit every time the foot of the wearer raises then lowers the shoe body for stepping on a ground surface. The transmitter device is disposed in the receiving space and is connected electrically to the piezoelectric unit. The voltage output from the piezoelectric unit serves as a power input of the transmitter device and activates the transmitter device to radiate a radio frequency signal. The receiver device receives the radio frequency signal from the transmitted device, and counts the number of times the radio frequency signal was received thereby so as to generate a step count output. 
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A43B A43B A43B G01C
inventional inventional inventional inventional
Tien-Tsai
Huang