Patents by Inventor Chao H. Liu

Chao H. 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).

  • Oblique spaced antenna method and system for measuring atmospheric wind fields
    Patent number: 5136296
    Abstract: Oblique spaced antenna method and system for measuring atmospheric wind fields within a predetermined volume, whereina pulsed beam of high frequency radar waves is transmitted in predetermined transmitting directions into the volume of the atmosphere to be investigated,parts of the radar waves which return from the volume to be investigated are received from predetermined receiving directions at a plurality of spaced receiving locations, andthe received waves are processed to derive information about the wind velocity within the volume to be investigated, to allow direct determination of parameters of the wind field, such as divergence, vorticity etc.The transmitting and receiving directions are oblique with respect to the vertical direction.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: August 4, 1992
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Juergen Roettger, Chao H. Liu