Patents by Inventor Qiang BJ Han

Qiang BJ Han 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).

  • GENERATION OF A CAPTCHA ON A HANDHELD TOUCH SCREEN DEVICE
    Publication number: 20190057206
    Abstract: Embodiments of the present disclosure relate to a CAPTCHA generation method. According to the method, a request for accessing a resource is received from a handheld touch screen device. A default virtual keyboard type is received from the handheld touch screen device. In response to the request, a CAPTCHA is generated based on the default virtual keyboard type. The CAPTCHA is sent to the handheld touch screen device.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 21, 2019
    Inventors: Bai Chen Deng, Qiang BJ Han, Qiang Li, Yan Yan S Su, Yue H Wang, Chuan Jie Zheng