Patents by Inventor Hugh B. Morgenbesser

Hugh B. Morgenbesser 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 determining forces to be applied to a user through a haptic interface
    Patent number: 7225404
    Abstract: A method and apparatus for determining forces to be applied to a user through a haptic interface. The method includes the steps of generating a representation of an object in graphic space, sensing the position of the user in real space and calculating a force to be applied to a user in response to the user's haptic interface and the user's fiducial object. The user's fiducial object represents the location in graphic space at which the user's haptic interface would be located if the haptic interface could not penetrate the surfaces of virtual objects.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: May 29, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Craig B. Zilles, J. Kenneth Salisbury, Jr., Thomas H. Massie, David Lawrence Brock, Mandayam A. Srinivasan, Hugh B. Morgenbesser
  • Method and apparatus for determining forces to be applied to a user through a haptic interface
    Patent number: 6369834
    Abstract: A method and apparatus for determining forces to be applied to a user through a haptic interface. The method includes the steps of generating a representation of an object in graphic space, sensing the position of the user in real space and calculating a force to be applied to a user in response to the user's haptic interface and the user's fiducial object. The user's fiducial object represents the location in graphic space at which the user's haptic interface would be located if the haptic interface could not penetrate the surfaces of virtual objects. In one embodiment, the method calculates a stiffness force to be applied to the user. In other embodiments, the method calculates damping and friction forces to be applied to the user. In one embodiment the step of generating a representation of an object in graphic space includes defining the object as a mesh of planar surfaces and associating surface condition values to each of the nodes defining the planar surfaces.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: April 9, 2002
    Assignee: Massachusetts Institute of Technology
    Inventors: Craig B. Zilles, J. Kenneth Salisbury, Jr., Thomas H. Massie, David Lawrence Brock, Mandayam A. Srinivasan, Hugh B. Morgenbesser
  • Method and apparatus for determining forces to be applied to a user through a haptic interface
    Patent number: 6111577
    Abstract: A method and apparatus for determining forces to be applied to a user through a haptic interface. The method includes the steps of generating a representation of an object in graphic space, sensing the position of the user in real space and calculating a force to be applied to a user in response to the user's haptic interface and the user's fiducial object. The user's fiducial object represents the location in graphic space at which the user's haptic interface would be located if the haptic interface could not penetrate the surfaces of virtual objects. In one embodiment, the method calculates a stiffness force to be applied to the user. In other embodiments, the method calculates damping and friction forces to be applied to the user. In one embodiment the step of generating a representation of an object in graphic space includes defining the object as a mesh of planar surfaces and associating surface condition values to each of the nodes defining the planar surfaces.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: August 29, 2000
    Assignee: Massachusetts Institute of Technology
    Inventors: Craig B. Zilles, J. Kenneth Salisbury, Jr., Thomas H. Massie, David Lawrence Brock, Mandayam A. Srinivasan, Hugh B. Morgenbesser