Patents by Inventor Guo Zhiqi

Guo Zhiqi 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).

  • Frequency domain processing of scanning acoustic imaging signals
    Publication number: 20020058871
    Abstract: Method and apparatus useful in the inspection of a target comprises scanning the target with a pulsed acoustic beam, sensing the pulsed beam after it has been modified by interaction with the target, producing a time-domain signal indicative of the modifications, processing the time-domain signal to produce a frequency domain representation of the modifications, and producing an image-wise display of the frequency domain representation of the modifications. In one execution disclosed, the frequency domain representation is altered and then reconverted to a time domain signal before display.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 16, 2002
    Applicant: Sonoscan, Inc.
    Inventors: Michael G. Oravecz, Lei Pen, Lawrence Kessler, Guo Zhiqi