Patents by Inventor Hsing-Tang Chien

Hsing-Tang Chien 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).

  • Method and apparatus for increasing scanning resolution
    Patent number: 7518758
    Abstract: The present invention provides a method and apparatus for increasing a scanning resolution. The present invention is applied in optics input equipments, such as scanners and multi-function peripherals. The scanning method projects a light to an original to produce a first image and then focuses the first image with a magnification M to generate a second image. The second image is reflected from reflectors to the scanning module to process the scanning. The resolution of the image scanned by the scanning module is M times of a native resolution of the scanning module.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: April 14, 2009
    Inventor: Hsing-Tang Chien