Patents by Inventor Steve P. DeWeerth

Steve P. DeWeerth 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).

  • Nonlinear beam forming and beam shaping aperture system
    Patent number: 7109918
    Abstract: This invention exploits the synchronization properties of coupled, nonlinear oscillators arrays to perform power combining, beam steering, and beam shaping. This architecture utilizes interactions between nonlinear active elements to generate beam patterns. A nonlinear array integrates the signal processing concurrently with the transduction of the signal. This architecture differs fundamentally from passive transducer arrays in three ways: 1) the unit cells are nonlinear, 2) the array purposely couples the unit cells together, and 3) the signal processing (beam steering and shaping) is done via dynamic interactions between unit cells. The architecture extends to both 1- and 2-dimensional arrays.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: September 19, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Brian K. Meadows, Ted H. Heath, Joseph D. Neff, Edgar A. Brown, David W. Fogliatti, Visarath In, Paul Hasler, Steve P. DeWeerth, William L. Ditto, Robert A. York
  • Method and apparatus for an improved nonlinear oscillator
    Patent number: 6822522
    Abstract: A nonlinear oscillator method and apparatus. According to one embodiment, a nonlinear oscillator is closed. The nonlinear oscillator includes a first linear amplifier, a second linear amplifier and nonlinear amplifier having a substantially similar design that includes an adjustable linear transconductance region width. The input/output characteristics of the nonlinear oscillator can be represented by van der Pol equations. In another embodiment, a method for providing nonlinear oscillations is disclosed.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: November 23, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edgar A. Brown, Joseph D. Neff, Steve P. DeWeerth, Paul Hasler, Brian Keith Meadows