Patents by Inventor Scott Siegrist

Scott Siegrist 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 symbol measurement and combining
    Patent number: 9825693
    Abstract: A method and system of symbol measurement and combining (SMaC) provides near-optimal performance for each user independently by relying on rapid digital beamforming with near-ideal convergence properties. This approach is also provides near-ideal performance without any knowledge of user/jammer location and adapts instantly as those locations change. An iterative joint estimation method is used to determine a covariance matrix RXX, and a user beamsteering vector, ?.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: November 21, 2017
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Scott Siegrist, John M. Trippett, Yenming Chen, Meina Xu, Christopher W. Walker, Brandon Rigg
  • Array adaptive beamforming for a large, arbitrary, sparse array
    Patent number: 9819083
    Abstract: A method and apparatus in one example uses adaptive digital beamforming with a plurality of heterogeneous antennas which are more affordable and flexible and do not require the use of a nuller antenna. The method uses adaptive, multi-beam digital beamforming without knowledge of a signal direction or aperture of the antena. The method works with arbitrary antenna elements in arbitrary locations and does not require any a priori antenna model. The method also optimizes signal-to-noise ratio (SNR) of the received signal.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: November 14, 2017
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Yenming Chen, John M. Trippett, Scott Siegrist