WRIST-BASED SPEED AND DISTANCE MONITORING
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United States of America Patent
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Issued Date -
Jul 17, 2014
app pub date -
Jan 16, 2014
filing date -
Jan 17, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and apparatus for determining a current speed of a wrist-worn mobile electronic device. In some configurations, a wrist-worn mobile electronic device is provided that includes a motion sensor configured to sense motion of the user's wrist and generate acceleration data, a position determining module, a non-transitory memory configured to store scale factors corresponding to a plurality of average acceleration points, and a processor operable to determine a cadence for the user, an average acceleration of the user's wrist, select a scale factor and compute a current speed for the mobile electronic device based on the cadence, determined average acceleration and selected scale factor.
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