Patents by Inventor Byungchum Yu

Byungchum Yu 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).

  • Publication number: 20100156825
    Abstract: A multi-touch sensing method and apparatus are described. The multi-touch sensing method includes: storing, in a memory, coordinate values of a first dead zone and coordinate values of a second dead zone existing between first and second pair of image sensors, respectively; calculating coordinate values of touch points from images obtained by the first and second pairs of image sensors; comparing the coordinate values of the touch point and the coordinate values of the dead zones to identify the location of the dead zone to which the touch point belongs; selecting the coordinate values calculated in the third step if the coordinate values of the touch point belong to the first dead zone; and selecting the coordinate values calculated in the second step if the coordinate values of the touch point belong to the second dead zone.
    Type: Application
    Filed: September 3, 2009
    Publication date: June 24, 2010
    Inventors: Minho Sohn, Jongseong Choi, Hyunguk Jang, Sangrae Lee, Jaejung Han, Sanghyuck Bae, Byungchum Yu