Patents by Inventor CHRIS WILLSON

CHRIS WILLSON 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).

  • Interactive input system and method
    Patent number: 9262011
    Abstract: An interactive input system comprises an optical waveguide, a radiation source directing radiation into the optical waveguide, the radiation undergoing total internal reflection within the optical waveguide in response to at least one touch input on a surface of the optical waveguide. At least one imaging device is positioned adjacent to the waveguide, the at least one imaging device having a field of view looking inside the optical waveguide and capturing image frames thereof. Processing structure processes the image frames captured by the at least one imaging device to determine a location of the at least one touch input based on a frequency of reflections of the radiation appearing in the image frame.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 16, 2016
    Assignee: SMART Technologies ULC
    Inventors: David Gregory Popovich, Yunqiu Rachel Wang, Vaughn E. Keenan, Grant McGibney, Robbie Rattray, Patrick James Gurtler, Chris Willson, Nicholas Svensson
  • INTERACTIVE INPUT SYSTEM AND METHOD
    Publication number: 20120249477
    Abstract: An interactive input system comprises an optical waveguide, a radiation source directing radiation into the optical waveguide, the radiation undergoing total internal reflection within the optical waveguide in response to at least one touch input on a surface of the optical waveguide. At least one imaging device is positioned adjacent to the waveguide, the at least one imaging device having a field of view looking inside the optical waveguide and capturing image frames thereof. Processing structure processes the image frames captured by the at least one imaging device to determine a location of the at least one touch input based on a frequency of reflections of the radiation appearing in the image frame.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Applicant: SMART TECHNOLOGIES ULC
    Inventors: DAVID GREGORY POPOVICH, YUNQIU RACHEL WANG, VAUGHN E. KEENAN, GRANT MCGIBNEY, ROBBIE RATTRAY, PATRICK JAMES GURTLER, CHRIS WILLSON, NICHOLAS SVENSSON