Patents by Inventor John Cedric Dill

John Cedric Dill 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).

  • Systems and methods for implementing haptic systems and stimulated environments
    Patent number: 8217932
    Abstract: A method is provided for simulating interaction between a tool and an object. The method involves: providing a tool model for simulating the tool in a simulated environment; providing a mesh for simulating the object in the simulated environment, the mesh comprising a plurality of nodes and a plurality of first force functions between pairs of nodes, each first force function being a function of a distance between its corresponding pair of nodes; and deforming the mesh in response to interaction between the tool model and the mesh in the simulated environment. Deforming the mesh may involve: displacing one or more initially displaced nodes; and displacing one or more level-one-connected nodes, displacement of each level-one-connected node dependent on at least one first force function between the level-one-connected node and a corresponding one of the one or more initially displaced nodes.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 10, 2012
    Assignee: Simon Fraser University
    Inventors: Shahram Payandeh, John Cedric Dill
  • SYSTEMS AND METHODS FOR IMPLEMENTING HAPTIC SYSTEMS AND SIMULATED ENVIRONMENTS
    Publication number: 20080278484
    Abstract: A method is provided for simulating interaction between a tool and an object. The method involves: providing a tool model for simulating the tool in a simulated environment; providing a mesh for simulating the object in the simulated environment, the mesh comprising a plurality of nodes and a plurality of first force functions between pairs of nodes, each first force function being a function of a distance between its corresponding pair of nodes; and deforming the mesh in response to interaction between the tool model and the mesh in the simulated environment. Deforming the mesh may involve: displacing one or more initially displaced nodes; and displacing one or more level-one-connected nodes, displacement of each level-one-connected node dependent on at least one first force function between the level-one-connected node and a corresponding one of the one or more initially displaced nodes.
    Type: Application
    Filed: May 9, 2008
    Publication date: November 13, 2008
    Inventors: Shahram Payandeh, John Cedric Dill