Patents by Inventor John R. Sacha

John R. Sacha 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 target imaging with sidelooking sonar
    Patent number: 5555532
    Abstract: A method and apparatus for imaging underwater targets utilizing sidelooking onar. A sonar pulse consisting of a concatenated series of subpulses is transmitted. The echo return is match filtered against each of the subpulses to produce a series of range-doppler maps, each providing information in a different direction. The range-doppler maps are normalized, thresholded, and intersected, thereby yielding data points which describe the target outline. Information as to the target length, width and orientation can be computed from the target outline data.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: September 10, 1996
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John R. Sacha