Sensor fusion for activity identification

  • US 8,784,309 B2
  • Filed: 10/23/2013
  • Issued: 07/22/2014
  • Est. Priority Date: 08/29/2008
  • Status: Active Grant
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First Claim
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1. An mobile device to monitor human activity using multiple sensors comprising:

  • a plurality of sensors;

    a dedicated processing unit receiving data from the plurality of sensors, the dedicated processing unit to process sensor data, the dedicated processing unit further comprising a calculating logic to compare a first estimation of a user activity statistic based on data from a first sensor with a second estimation of a user activity statistic based on data from a second sensor, to calculate a first accuracy of the first estimation and a second accuracy of the second estimation, and to calculate the user activity statistic based on the first estimation and the second estimation, wherein the calculated user activity statistic is a result of a weighted combination of the first estimation and the second estimation based on the first accuracy and the second accuracy; and

    a central processing unit to perform functions in the mobile device.

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