Patents by Inventor Alain Barraud

Alain Barraud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for detecting a substantially invariant rotation axis
    Patent number: 7890291
    Abstract: A method for detecting a substantially invariant rotation axis of a motion of a mobile body equipped with at least one inertial or magnetic sensor with three sensitive axes that includes acquiring physical measurements with respect to the three sensitive axes of the sensor, the physical measurements including at least three samples at different times, estimating a substantially invariant rotation axis in the physical measurements space, and identifying the estimated axis as the substantially invariant rotation axis of the motion. In one aspect, the method is applicable for estimating the motion of a mobile body rotating about a substantially invariant axis.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: February 15, 2011
    Assignees: Commissariat a l'Energie Atomique, Universite Joseph Fourier, Institut National Polytechnique de Grenoble
    Inventors: Christelle Godin, Stèphane Bonnet, Alain Barraud, Suzanne Lesecq
  • Method for estimating movement of a solid
    Patent number: 7711516
    Abstract: The method estimates movement of a solid mobile in a medium capable of generating disturbances defined by a three-variable vector, wherein the movement is defined by a six-variable vector and the solid is equipped with at least one sensor sensitive to acceleration having at least three sensitive axes and at least one sensor sensitive to the magnetic field having at least three sensitive axes. The method for estimating the movement of a solid includes a step of calculating a nine-variable vector consisting of the six-variable movement vector and of the three-variable disturbance vector and a step of weighting the nine-variable vector capable of transforming the nine-variable vector into a vector with not more than five variables to be estimated.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: May 4, 2010
    Assignees: Commissariat a l 'Energie Atomique, Universite Joseph Fourier, Institut National Polytechnique de Grenoble
    Inventors: Yanis Caritu, Christelle Godin, Alain Barraud, Suzanne Lesecq
  • METHOD AND DEVICE FOR DETECTING A SUBSTANTIALLY INVARIANT ROTATION AXIS
    Publication number: 20080281555
    Abstract: A method for detecting a substantially invariant rotation axis of a motion of a mobile body equipped with at least one inertial or magnetic sensor with three sensitive axes that includes acquiring physical measurements with respect to the three sensitive axes of the sensor, the physical measurements including at least three samples at different times, estimating a substantially invariant rotation axis in the physical measurements space, and identifying the estimated axis as the substantially invariant rotation axis of the motion. In one aspect, the method is applicable for estimating the motion of a mobile body rotating about a substantially invariant axis.
    Type: Application
    Filed: April 24, 2008
    Publication date: November 13, 2008
    Inventors: Christelle Godin, Stephane Bonnet, Alain Barraud, Suzanne Lesecq
  • Method for Estimating Movement of a Solid
    Publication number: 20080270068
    Abstract: The method estimates movement of a solid mobile in a medium capable of generating disturbances defined by a three-variable vector, wherein the movement is defined by a six-variable vector and the solid is equipped with at least one sensor sensitive to acceleration having at least three sensitive axes and at least one sensor sensitive to the magnetic field having at least three sensitive axes. The method for estimating the movement of a solid includes a step of calculating a nine-variable vector consisting of the six-variable movement vector and of the three-variable disturbance vector and a step of weighting the nine-variable vector capable of transforming the nine-variable vector into a vector with not more than five variables to be estimated.
    Type: Application
    Filed: December 21, 2006
    Publication date: October 30, 2008
    Inventors: Yanis Caritu, Christelle Godin, Alain Barraud, Suzanne Lesecq