×

Method and arrangement for determining movement

  • US 6,983,219 B2
  • Filed: 06/27/2002
  • Issued: 01/03/2006
  • Est. Priority Date: 06/29/2001
  • Status: Active Grant
First Claim
Patent Images

1. A method for determining the movement of a device, in which method the acceleration of the device is measured at least in three different directions to provide a three-dimensional measurement, the method comprisinggenerating acceleration signals parallel to three orthogonal axes, which are in a known orientation to the device;

  • generating average signals of the acceleration signals parallel to the different axes;

    defining tilt angles of the device in relation to the direction of gravity by means of the average signals;

    generating acceleration change signals by removing the average signals from their respective acceleration signals parallel to the different axes;

    forming a component of the acceleration change of the device by means of the acceleration change signals and the tilt angles of the device, which component is parallel to gravity and independent of the position of the device.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×