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System and method for determining an attitude of a device undergoing dynamic acceleration

  • US 9,152,249 B2
  • Filed: 10/31/2013
  • Issued: 10/06/2015
  • Est. Priority Date: 10/20/2008
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • at a respective computer system having one or more processors and memory storing one or more programs that when executed by the one or more processors cause the respective computer system to perform the method, the method comprising;

    obtaining a first acceleration measurement received from a first accelerometer of a device, wherein the first acceleration measurement corresponds to respective movement of the device;

    obtaining a second acceleration measurement received from a second accelerometer of the device, wherein the second acceleration measurement corresponds to the respective movement of the device and the first accelerometer is spaced apart from the second accelerometer in the device by an accelerometer offset distance;

    obtaining a pivot distance that corresponds to distance between the device and a pivot origin for the respective movement; and

    determining an attitude measurement for the device based on the first acceleration measurement, the second acceleration measurement, the pivot distance and the accelerometer offset distance.

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