Patents by Inventor Mathieu Légaré

Mathieu Légaré 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 apparatus for calibrating spherical objects using a computer system
    Patent number: 7412777
    Abstract: A method of determining a center of curvature of the spherical outer surface of an object using a computer system is provided. The method includes defining at least one contact region on the spherical outer surface in a plane substantially tangential to a circumference thereof and a first reference axis normal to said plane. Spatial coordinates of at least one of a first and a second geometric parameter are determined, the first geometric parameter including at least two points located on the spherical outer surface and the second geometric parameter including a second reference axis normal to the spherical outer surface. The center of curvature of the spherical outer surface is then calculated using the first reference axis and at least one of the first and second geometric parameters. An associated system and calibration device is also provided.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: August 19, 2008
    Assignee: Orthosoft Inc.
    Inventors: Benoit Pelletier, Sébastien Jutras, Bruno Falardeau, Mathieu Légaré
  • Method and apparatus for calibrating spherical objects using a computer system
    Publication number: 20060260147
    Abstract: A method of determining a center of curvature of the spherical outer surface of an object using a computer system is provided. The method includes defining at least one contact region on the spherical outer surface in a plane substantially tangential to a circumference thereof and a first reference axis normal to said plane. Spatial coordinates of at least one of a first and a second geometric parameter are determined, the first geometric parameter including at least two points located on the spherical outer surface and the second geometric parameter including a second reference axis normal to the spherical outer surface. The center of curvature of the spherical outer surface is then calculated using the first reference axis and at least one of the first and second geometric parameters. An associated system and calibration device is also provided.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 23, 2006
    Inventors: Benoit Pelletier, Sebastien Jutras, Bruno Falardeau, Mathieu Legare