Patents by Inventor George F. Schils

George F. Schils 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).

  • Position, rotation, and intensity invariant recognizing method
    Patent number: 4838644
    Abstract: A method for recognizing the presence of a particular target in a field of view which is target position, rotation, and intensity invariant includes the preparing of a target-specific invariant filter from a combination of all eigen-modes of a pattern of the particular target. Coherent radiation from the field of view is then imaged into an optical correlator in which the invariant filter is located. The invariant filter is rotated in the frequency plane of the optical correlator in order to produce a constant-amplitude rotational response in a correlation output plane when the particular target is present in the field of view. Any constant response is thus detected in the outputThe U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP00789 between the U.S. Department of Energy and AT&T Technologies, Inc.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: June 13, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Ellen Ochoa, George F. Schils, Donald W. Sweeney