ENERGY SCAVENGING STEP-COUNTER DEVICE AND RELATED STEP-COUNTING METHOD
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United States of America Patent
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Issued Date -
Sep 17, 2015
app pub date -
Mar 4, 2015
filing date -
Mar 13, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A step-detection device for detecting the steps taken by a user (for counting) includes a transducer that generates an electrical transduction signal as a function of step mechanical activity. An energy scavenging system, coupled to the transducer, generates electrical energy starting from the mechanical activity in order to supply an output supply signal in response to the electrical transduction signal. A voltage-regulator generates a regulated supply signal from the output supply signal. A transmission stage, supplied by the voltage-regulating stage, initiates a wireless transmission indicative of step detection, that wireless transmission causing an increment of a step count at a remote location. The transmission stage makes the wireless transmission when the regulated supply signal exceeds a first threshold. Completion of the wireless transmission is indicative of the occurrence of a step.
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