Patents by Inventor John Schlansker

John Schlansker 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).

  • Constraint reduction for dynamic simulation
    Patent number: 8571840
    Abstract: Methods, program products and systems for preparing a mechanical model for a dynamic simulation. A first plurality of bodies in a mechanical model are identified including at least one grounded body and at least one free body, each of the bodies in the first plurality of bodies being related to at least one other body in the plurality of bodies by at least one constraint that removes or limits at least one degree of freedom for that body in relation to another body. The bodies in the first plurality of bodies are merged into a minimum number of rigid groups needed for a dynamic simulation where the minimum number of rigid groups includes at least one grounded group and at least one mobile group. Constraints that relate bodies within a group are removed from each of the rigid groups.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: October 29, 2013
    Assignee: Autodesk, Inc.
    Inventors: George Hudetz, John Schlansker, Frédéric Tachet, Estelle Pardon, Peter Legate Maxfield
  • CONSTRAINT REDUCTION FOR DYNAMIC SIMULATION
    Publication number: 20080243456
    Abstract: Methods, program products and systems for preparing a mechanical model for a dynamic simulation. A first plurality of bodies in a mechanical model are identified including at least one grounded body and at least one free body, each of the bodies in the first plurality of bodies being related to at least one other body in the plurality of bodies by at least one constraint that removes or limits at least one degree of freedom for that body in relation to another body. The bodies in the first plurality of bodies are merged into a minimum number of rigid groups needed for a dynamic simulation where the minimum number of rigid groups includes at least one grounded group and at least one mobile group. Constraints that relate bodies within a group are removed from each of the rigid groups.
    Type: Application
    Filed: June 12, 2007
    Publication date: October 2, 2008
    Applicant: AUTODESK, INC.
    Inventors: George Hudetz, John Schlansker, Frederic Tachet, Estelle Pardon, Peter Legate Maxfield