Patents by Inventor Mario Schirru

Mario Schirru 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).

  • Vibrating substrate for haptic interface
    Patent number: 8780053
    Abstract: A haptic device is provided having a substrate with a touch surface and one or more actuators for vibrating the substrate in a multiplicity of higher resonant modes, each of which has a high enough frequency to be inaudible and high enough amplitude to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: July 15, 2014
    Assignee: Northwestern University
    Inventors: James Edward Colgate, Michael Peshkin, Laura Winfield Alexander, Mario Schirru
  • Vibrating substrate for haptic interface
    Publication number: 20090284485
    Abstract: A haptic device is provided having a substrate with a touch surface and one or more actuators for vibrating the substrate in a multiplicity of higher resonant modes, each of which has a high enough frequency to be inaudible and high enough amplitude to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface.
    Type: Application
    Filed: March 19, 2009
    Publication date: November 19, 2009
    Inventors: James Edward Colgate, Michael Peshkin, Laura Winfield Alexander, Mario Schirru