Patents by Inventor Yingong Dang

Yingong Dang 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).

  • Embedded interaction code recognition
    Patent number: 7599560
    Abstract: In accordance with embodiments of the invention, embedded interaction code (EIC) symbols are recognized. EIC dots are generated based on effective EIC symbols, which have been generated by processing an image containing the EIC symbols, by obtaining graylevels of selected positions of the EIC-symbols. Rotated EIC dots are generated based on the EIC dots by determining which grid cells correspond to the EIC symbols and by determining which direction is a correct orientation of the EIC symbols. A homography matrix is updated with orientation information based on the EIC dots. EIC bits are extracted from the rotated EIC dots based on graylevels of selected positions of the rotated EIC dots.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 6, 2009
    Assignee: Microsoft Corporation
    Inventors: Qiang Wang, Liyong Chen, Yingong Dang, Jiang Wu, Jian Wang