Patents by Inventor Kei-Hon Chen

Kei-Hon Chen 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).

  • Scanning module
    Patent number: 7701619
    Abstract: A scanning module is used in a scanner with a glass for placing documents. The scanning module contains a convergent lens set comprised of lenses with different curvatures and a long-stripe shape lined up from a reflector, and starting with the reflector, the lengths of the lenses are shorter and shorter one by one. All the light reflected by the document can be converged by the convergent lens set to an image sensor so that an optimal image completely falls in the image sensor. The convergent lens set shortens the length of the scanning module, rendering a compact scanner.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: April 20, 2010
    Inventors: Kei-Hon Chen, Hsin-Tang Chien
  • Scanning module
    Publication number: 20050052709
    Abstract: A scanning module is used in a scanner with a glass for placing documents. The scanning module contains a convergent lens set comprised of lenses with different curvatures and a long-stripe shape lined up from a reflector, and starting with the reflector, the lengths of the lenses are shorter and shorter one by one. All the light reflected by the document can be converged by the convergent lens set to an image sensor so that an optimal image completely falls in the image sensor. The convergent lens set shortens the length of the scanning module, rendering a compact scanner.
    Type: Application
    Filed: August 5, 2004
    Publication date: March 10, 2005
    Inventors: Kei-Hon Chen, Hsin-Tang Chien