Patents by Inventor Steve Teodosiadis

Steve Teodosiadis 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).

  • Conversion of a hierarchical subdivision surface to nurbs
    Patent number: 6859202
    Abstract: A method of converting a subdivision surface to a NURBS representation. Adjacent faces of a subdivision surface are merged into a quadrilateral region, and vertices of the rectangular regions are used to generate a NURBS surface. The merging of faces reduces the number of vertices needed. Faces should not be merged if they do not comprise a quadrilateral region; if they cross an extraordinary point; if they cross a crease; or a face has already been merged. Imaginary vertices can be generated if not enough vertices are present for a face in the subdivision surface to create a corresponding NURBS patch for that face.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: February 22, 2005
    Assignee: Alias Systems Corp.
    Inventors: Steve Teodosiadis, Michael Lounsbery
  • Conversion of a hierarchical subdivision surface to nurbs
    Publication number: 20030197701
    Abstract: A method of converting a subdivision surface to a NURBS representation. Adjacent faces of a subdivision surface are merged into a quadrilateral region, and vertices of the rectangular regions are used to generate a NURBS surface. The merging of faces reduces the number of vertices needed. Faces should not be merged if they do not comprise a quadrilateral region; if they cross an extraordinary point; if they cross a crease; or a face has already been merged. Imaginary vertices can be generated if not enough vertices are present for a face in the subdivision surface to create a corresponding NURBS patch for that face.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 23, 2003
    Applicant: Silicon Graphics, Inc.
    Inventors: Steve Teodosiadis, Michael Lounsbery