Patents by Inventor Lichun YE

Lichun YE 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 system for determining true touch points on input touch panel using sensing modules
    Patent number: 9367177
    Abstract: The present invention is to provide a method and system for determining true touch points on input touch panel. Two optical sensing module pairs are used to determine two groups of possible touch regions, further with overlap checking with virtual shadow regions to find out potential touch points. Occlusion checking is implemented to acquire true touch points from the potential touch points. The method of the present invention is capable of acquiring true touch points in a fast and reliable way. Furthermore, an interactive input system of the present invention comprises optical sensing modules having their corresponding optical emitters with different wavelengths, and light filters with peak transmission at different wavelengths to avoid from interference effect and over-exposed signal during signal detection by the optical sensing modules.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: June 14, 2016
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Xiuling Zhu, Xurong Li, Lichun Ye
  • Method and system for determining true touch points on input touch panel using sensing modules
    Publication number: 20150002470
    Abstract: The present invention is to provide a method and system for determining true touch points on input touch panel. Two optical sensing module pairs are used to determine two groups of possible touch regions, further with overlap checking with virtual shadow regions to find out potential touch points. Occlusion checking is implemented to acquire true touch points from the potential touch points. The method of the present invention is capable of acquiring true touch points in a fast and reliable way. Furthermore, an interactive input system of the present invention comprises optical sensing modules having their corresponding optical emitters with different wavelengths, and light filters with peak transmission at different wavelengths to avoid from interference effect and over-exposed signal during signal detection by the optical sensing modules.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: Xiuling ZHU, Xurong LI, Lichun YE