Patents by Inventor Han Dingnan

Han Dingnan 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).

  • MULTI-POINT TOUCH SCREEN OPERATING TOOL
    Publication number: 20110298742
    Abstract: A method for determining a touch point during a special touch object contacting with a touch screen, and a touch screen operating tool, in particular a touch pen. The method includes: installing a sensor on the special touch object, comparing the data of the special touch object obtained by the sensor with the corresponding data of the contact point on the screen, determining the corresponding touch point of the special touch object.
    Type: Application
    Filed: February 10, 2010
    Publication date: December 8, 2011
    Inventor: Han Dingnan