DATA COLLECTION UNIT POWER AND NOISE MANAGEMENT
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United States of America Patent
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app pub date -
Mar 28, 2012
filing date -
Mar 29, 2011
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Abstract
A physical activity data collection system includes one or more accelerometer units in communication with a data collection unit, where the data collection unit, includes one or more infrared sensors configured to provide an output indicative of a pulse rate of a user of the physical activity data collection unit. The data collection unit may also include at least one temperature sensor configured to provide an output indicative of at least a body temperature of the user; and at least one accelerometer configured to provide an output indicative of movements of the user. The system may also include a microcontroller configured to evaluate the outputs of the two or more infrared sensors at a plurality of power levels; select at least one of the two or more infrared sensors for data collection; and reduce an amount of power applied to infrared sensors other than the at least one of the two or more infrared sensors selected for data collection.
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