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Fitness monitoring device with altimeter

  • US 9,599,632 B2
  • Filed: 05/30/2014
  • Issued: 03/21/2017
  • Est. Priority Date: 06/22/2012
  • Status: Active Grant
First Claim
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1. A wearable biometric tracking device, the wearable biometric tracking device comprising:

  • one or more biometric sensors;

    a pressure sensor, the pressure sensor configured to detect ambient atmospheric air pressure around the wearable biometric tracking device and to output data representative of altitude, wherein the data representative of altitude is based, at least in part, on the ambient atmospheric air pressure detected by the pressure sensor and wherein the pressure sensor is a barometric altimeter or a barometric pressure sensor;

    a location-determining device configured to determine location based on data received from one or more devices remote from the wearable biometric tracking device and to output corresponding location data; and

    control logic, wherein the one or more biometric sensors, the pressure sensor, the location-determining device, and the control logic are communicatively connected and the control logic is configured to;

    a) receive the location data from the location-determining device,b) analyze the location data to determine a first location of the wearable biometric tracking device,c) determine a first topographic altitude from historical topographic data, wherein the first topographic altitude is an altitude correlated with the first location,d) receive the data representative of altitude from the pressure sensor and associate the data representative of altitude with the first location,e) analyze the data representative of altitude to determine if the pressure sensor should be recalibrated based on a first difference between the first topographic altitude and an altitude (i) calculated from the data representative of altitude and (ii) associated with the first location,f) recalibrate the pressure sensor based on the first difference when the control logic determines in (e) that the pressure sensor should be recalibrated,g) determine an update time period based, at least in part, on the first location, andh) repeat at least (a) through (e) according to the update time period.

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