Patents by Inventor Joseph Colburn

Joseph Colburn 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).

  • Patent number: 10193233
    Abstract: An active artificial magnetic conductor comprising an array of unit cells, each unit cell comprising an electrically conductive patch that is connected with an electrically conductive patch of neighboring unit cell in a column of unit cells using a non-Foster negative inductor and having RF isolating plates or walls between rows of unit cells. These isolating plates or walls eliminate undesirable cross coupling between the non-Foster negative inductors. The electrically conductive patches may be formed by metallic patches preferably arranged in the 2D array of such patches. Each patch preferably has a rectilinear shape.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: January 29, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel Gregoire, Carson White, Joseph Colburn
  • Patent number: 7795859
    Abstract: Low cost millimeter wave imagers using two-dimensional focal plane arrays based on backward tunneling diode (BTD) detectors. Two-dimensional focal arrays of BTD detectors are used as focal plane arrays in imagers. High responsivity of BTD detectors near zero bias results in low noise detectors that alleviate the need for expensive and heat generating low noise amplifiers or Dicke switches in the imager. BTD detectors are installed on a printed circuit board using flip chip packaging technology and horn antennas direct the waves toward the flip chip including the BTD detectors. The assembly of the horn antennas, flip chips, printed circuit board substrate, and interconnects together work as an imaging sensor. Corrugated surfaces of the components prevent re-radiation of the incident waves.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: September 14, 2010
    Assignee: HRL Laboratories, LLC
    Inventors: Jonathan James Lynch, James H. Schaffner, Daniel Frederic Sievenpiper, Debabani Choudhury, Joseph Colburn, Joel N. Schulman, Harris P. Moyer, Andrew T. Hunter
  • Patent number: 7583074
    Abstract: Low cost millimeter wave imagers using two-dimensional focal plane arrays based on backward tunneling diode (BTD) detectors. Two-dimensional focal arrays of BTD detectors are used as focal plane arrays in imagers. High responsivity of BTD detectors near zero bias results in low noise detectors that alleviate the need for expensive and heat generating low noise amplifiers or Dicke switches in the imager. BTD detectors are installed on a printed circuit board using flip chip packaging technology and horn antennas direct the waves toward the flip chip including the BTD detectors. The assembly of the horn antennas, flip chips, printed circuit board substrate, and interconnects together work as an imaging sensor. Corrugated surfaces of the components prevent re-radiation of the incident waves.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: September 1, 2009
    Assignee: HRL Laboratories, LLC
    Inventors: Jonathan James Lynch, James H. Schaffner, Daniel Frederic Sievenpiper, Debabani Choudhury, Joseph Colburn, Joel N. Schulman, Harris P. Moyer, Andrew T. Hunter
  • Patent number: 7438313
    Abstract: A multi-level gas inflator for an air bag or other safety device, comprising an elongated pressure vessel having a primary gas generant portion with a first open end and a secondary portion with a second open end. The primary gas generant portion has a primary ignition device and primary gas generating energetics disposed therein. The primary ignition device is mounted on and closes the pressure vessel at the first open end thereof. The secondary portion may have a secondary ignition device and secondary gas generating energetics disposed therein. The secondary ignition device may be mounted on the pressure vessel at the second open end thereof. A suitable gas under a predetermined pressure is present in the primary and secondary portions. One or more separate dividers or divider walls are disposed within the midportion of the pressure vessel to separate the primary and secondary portions.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: October 21, 2008
    Assignee: ARC Automotive, Inc.
    Inventors: David Anthony Bilbrey, Scott Joseph Colburn, C. Richard Husband, Robert William Rovito, Samuel Morgan Hancock
  • Patent number: 7208710
    Abstract: A method and apparatus for creating uniform heating of an microwave absorptive target. A circularly polarized waveguide mode is created that promotes uniform heating of the microwave absorptive target by rotating a propagated non-uniform field pattern around a central axis of a cylindrical cavity or waveguide. In the process of rotating the field pattern, hot and cold spots in the field pattern are averaged out over time.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: April 24, 2007
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel Gregoire, Joseph Colburn
  • Publication number: 20070001909
    Abstract: A method for guiding waves over objects, a method for improving a performance of an antenna, and a method for improving a performance of a radar are disclosed. The methods disclosed teach how an impedance structure can be used to guide waves over objects.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 4, 2007
    Inventors: Daniel Sievenpiper, Joseph Colburn, Bryan Fong, Matthew Ganz, Mark Gyure, Jonathan Lynch, John Ottusch, John Visher
  • Publication number: 20060289503
    Abstract: A method and apparatus for creating uniform heating of an microwave absorptive target. A circularly polarized waveguide mode is created that promotes uniform heating of the microwave absorptive target by rotating a propagated non-uniform field pattern around a central axis of a cylindrical cavity or waveguide. In the process of rotating the field pattern, hot and cold spots in the field pattern are averaged out over time.
    Type: Application
    Filed: August 14, 2006
    Publication date: December 28, 2006
    Inventors: Daniel Gregoire, Joseph Colburn
  • Publication number: 20060102622
    Abstract: A method and apparatus for creating uniform heating of an microwave absorptive target. A circularly polarized waveguide mode is created that promotes uniform heating of the microwave absorptive target by rotating a propagated non-uniform field pattern around a central axis of a cylindrical cavity or waveguide. In the process of rotating the field pattern, hot and cold spots in the field pattern are averaged out over time.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 18, 2006
    Inventors: Daniel Gregoire, Joseph Colburn
  • Publication number: 20060101793
    Abstract: A diesel particulate filter including a microwave-absorbing target within a waveguide cavity. The cavity accepts microwave-frequency electromagnetic radiation through input couplers 90 degrees out of phase with each other to excite circular polarization heating modes. Through excitation of circularly polarized modes, heating patterns are time-averaged azimuthally to smooth out the hot and cold spots, thereby providing greater uniformity relative to heating patterns for corresponding linearly polarized modes.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 18, 2006
    Inventors: Daniel Gregoire, Joseph Colburn
  • Publication number: 20060097935
    Abstract: A dual-band monopole antenna includes a ground plane. A metal plate is located a first distance from the ground plane and includes first and second portions connecting to form a first angle therebetween. A slot is formed in the metal plate that isolates a center portion of the metal plate. The dual-band monopole antenna communicates first radio frequency (RF) signals in a first RF band and second RF signals in a second RF band. A feed tab contacts an outer surface of the metal plate and is located the first distance from the ground plane. The first RF signals and the second RF signals are vertical polarized signals. The dual-band monopole antenna produces a radiation pattern that is omnidirectional in the azimuth plane and vertically polarized in a horizontal plane. The first RF band and the second RF band are independently tuned.
    Type: Application
    Filed: October 27, 2004
    Publication date: May 11, 2006
    Inventors: Joseph Colburn, Adesunloye Obatoyinbo, Jonathan Lynch
  • Publication number: 20050162321
    Abstract: A low-profile dual-band antenna includes a ground plane. An ā€œEā€-shaped metal plate is located a first distance from the ground plane and includes first and second outer extensions and an inner extension of the metal plate. A feed tab connects the inner extension and the ground plane. A shorting tab connects the inner extension and the ground plane. The low-profile dual-band antenna communicates first radio frequency (RF) signals in a first RF band and second RF signals in a second RF band. The first RF signals and the second RF signals are vertical polarized signals. The low-profile dual-band antenna produces a radiation pattern that is omnidirectional in the azimuth plane and vertically polarized in a horizontal plane when communicating the first RF signals and the second RF signals. The first RF band and the second RF band can be independently tuned.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Inventors: Joseph Colburn, Daniel Sievenpiper
  • Patent number: D515574
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: February 21, 2006
    Assignee: VIVOtech, Inc.
    Inventor: Theodore Joseph Colburn
  • Patent number: D527039
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: August 22, 2006
    Assignee: VIVOtech, Inc.
    Inventors: Theodore Joseph Colburn, Stanley Abille Mercado, Mohammad A. Khan
  • Patent number: D543232
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: May 22, 2007
    Assignee: VIVOtech, Inc.
    Inventors: Theodore Joseph Colburn, Stanley Abille Mercado, Mohammad A. Khan
  • Patent number: D543582
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: May 29, 2007
    Assignee: VIVOtech, Inc.
    Inventors: Theodore Joseph Colburn, Stanley Abille Mercado, Mohammad A. Khan