Method and apparatus for movement detection by evaluating elementary movement patterns

  • US 9,398,536 B2
  • Filed: 05/29/2009
  • Issued: 07/19/2016
  • Est. Priority Date: 05/29/2009
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • detecting a predefined movement pattern of a mobile device during an observation period that comprises a plurality of elementary periods of time, based at least in part on;

    results which are representative of sensor measurements obtained in an elementary period of time from two or more sensors in the mobile device, each result being determined by a comparator for a sensor measurement of each sensor to exceed or not exceed a predetermined first threshold applicable thereon, the results evaluating to a summary event for the elementary period indicative of a status of motion of the mobile device or no motion of the mobile device in the elementary period, anda number of elementary periods of time in the observation period, in which the results of comparing the sensor measurements in each elementary period evaluate to the summary event for the elementary period indicative of the status of motion of the mobile device, being sufficient in said number to exceed a second threshold on said number; and

    determining whether the predefined movement pattern corresponds to a substantially stationary position of the mobile device or to a physical displacement of the mobile device, determined based on a movement of a center of mass of the mobile device beyond a third threshold on distance, within a time interval.

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