Patents by Inventor Oingyang Hu

Oingyang Hu 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).

  • Methods and apparatus for inspecting an object
    Patent number: 7898651
    Abstract: A method for inspecting an object includes emitting light from at least one of a liquid crystal display (LCD) device and a liquid crystal on silicon (LCOS) device, phase-shifting light emitted from at least one of the LCD device and the LCOS device, projecting the phase-shifted light onto a surface of an object, receiving light reflected from the object surface with an imaging sensor, and analyzing the light received by the imaging sensor to facilitate inspecting at least a portion of the object.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: March 1, 2011
    Assignee: General Electric Company
    Inventors: Oingyang Hu, Donald Wagner Hamilton, Kevin George Harding, Joseph Benjamin Ross