Patents by Inventor Robert W. Sheriff

Robert W. Sheriff 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).

  • Side look sonar apparatus and method
    Patent number: 5596549
    Abstract: A side look sonar apparatus having a linear array of receiving elements mounted to an underwater platform vehicle which has an aperture with a cross track dimension greater than the along track dimension. The cross track beams are processed to form synthetic aperture beams in the along track dimension. One embodiment generates a synthetic aperture beam for each cross track beam. A second embodiment generates a single synthetic aperture beam.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: January 21, 1997
    Assignee: Northrop Grumman Corporation
    Inventor: Robert W. Sheriff
  • High resolution beam former apparatus
    Patent number: 5228006
    Abstract: An array of receiver elements in a radar or sonar system is synthetically elongated resulting in a narrower beam pattern. This is accomplished by sampling each output signal of the receiver elements, converting the signal to I and Q components for determination of a magnitude and phase angle. The phase angle is modified by a certain phase modulation factor f.sub.m and new I and Q components are calculated using the modified phase angle. The modified I and Q components from all of the received elements are combined for display purposes.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: July 13, 1993
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert W. Sheriff