Stmicroelectronics S.r.l.

Maria Cassese

Davide Platania

Antonino Cuce&prime;

A portable system carried by a user for assessing movement of the user includes at least one motion sensor adjacent a portion of the user's body under observation. An analog-to-digital converter is connected to the motion sensor for converting an analog signal therefrom into a digital signal. A logic circuit is connected to the analog-to-digital converter for calculating parameters based upon the digital signal. A first fuzzy logic processing circuit is connected to the logic circuit for processing the calculated parameters and for generating corresponding fuzzy classification labels based upon movement of the portion of the user's body under observation during an interval of time. A memory is connected to the first fuzzy logic processing circuit for storing at least one of the calculated parameters and the fuzzy classification labels. A second fuzzy logic processing circuit is connected to the memory for generating an activity index representative of the movement of the user during the interval of time based upon the fuzzy classification labels.

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Crema, Italy

Maria Cassese