Patents by Inventor Shiqiao Du

Shiqiao Du 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: 20170293992
    Abstract: An image code is for information storage, transfer and identification, a method of generating and analyzing the same, and an apparatus for implementing the method, the image code includes a standard image area, at least one image filled in the standard image region, at least one segment of information stream implanted in the at least one image by using digital watermarking technique and 4 location identification graphics arranged in different positions of the standard image region, the location identification graphics are arranged in the 4 vertex angles of the standard image region, including 1 feature location identification graphic and 3 basic location identification graphics; the 3 basic location identification graphics are identical and the feature location identification graphic is different from the basic location identification graphic.
    Type: Application
    Filed: August 25, 2015
    Publication date: October 12, 2017
    Inventors: Zheng Liu, Shiqiao Du