Patents by Inventor Amsheng Liu

Amsheng Liu 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: 20100080504
    Abstract: A method and apparatus for high speed silicon optical modulation is described using a PN diode. In one example, an optical waveguide has adjoining first and second doped semiconductor regions. The first and second regions have opposite doping types and the first doped region extends in two perpendicular directions through the waveguide.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Yoel Shetrit, Ling Liao, Amsheng Liu