Patents by Inventor Ronald H. Severtsen
Ronald H. Severtsen 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).
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Patent number: 7986260Abstract: Circularly-polarized antennas and their methods of use for active holographic imaging through barriers. The antennas are dielectrically loaded to optimally match the dielectric constant of the barrier through which images are to be produced. The dielectric loading helps to remove barrier-front surface reflections and to couple electromagnetic energy into the barrier.Type: GrantFiled: February 18, 2009Date of Patent: July 26, 2011Assignee: Battelle Memorial InstituteInventors: Douglas L McMakin, Ronald H Severtsen, Wayne M Lechelt, James M Prince
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Patent number: 7855673Abstract: The present invention includes methods and apparatuses for imaging material properties in natural-fiber-containing materials. In particular, the images can provide quantified measures of localized moisture content. Embodiments of the invention utilize an array of antennas and at least one transceiver to collect amplitude and phase data from radiation interacting with the natural-fiber-containing materials. The antennas and the transceivers are configured to transmit and receive electromagnetic radiation at one or more frequencies, which are between 50 MHz and 1 THz. A conveyance system passes the natural-fiber-containing materials through a field of view of the array of antennas. A computing device is configured to apply a synthetic imaging algorithm to construct a three-dimensional image of the natural-fiber-containing materials that provides a quantified measure of localized moisture content. The image and the quantified measure are both based on the amplitude data, the phase data, or both.Type: GrantFiled: July 10, 2008Date of Patent: December 21, 2010Assignee: Battelle Memorial InstituteInventors: Kyle J. Bunch, Brian J. Tucker, Ronald H. Severtsen, Thomas E. Hall, Douglas L. McMakin, Wayne M. Lechelt, Jeffrey W. Griffin, David M. Sheen
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Publication number: 20100207803Abstract: Circularly-polarized antennas and their methods of use for active holographic imaging through barriers. The antennas are dielectrically loaded to optimally match the dielectric constant of the barrier through which images are to be produced. The dielectric loading helps to remove barrier-front surface reflections and to couple electromagnetic energy into the barrier.Type: ApplicationFiled: February 18, 2009Publication date: August 19, 2010Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Douglas L. McMakin, Ronald H. Severtsen, Wayne M. Lechelt, James M. Prince
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Publication number: 20080272954Abstract: The present invention includes methods and apparatuses for imaging material properties in natural-fiber-containing materials. In particular, the images can provide quantified measures of localized moisture content. Embodiments of the invention utilize an array of antennas and at least one transceiver to collect amplitude and phase data from radiation interacting with the natural-fiber-containing materials. The antennas and the transceivers are configured to transmit and receive electromagnetic radiation at one or more frequencies, which are between 50 MHz and 1 THz. A conveyance system passes the natural-fiber-containing materials through a field of view of the array of antennas. A computing device is configured to apply a synthetic imaging algorithm to construct a three-dimensional image of the natural-fiber-containing materials that provides a quantified measure of localized moisture content. The image and the quantified measure are both based on the amplitude data, the phase data, or both.Type: ApplicationFiled: July 10, 2008Publication date: November 6, 2008Inventors: Kyle J. Bunch, Brian J. Tucker, Ronald H. Severtsen, Thomas E. Hall, Douglas L. McMakin, Wayne M. Lechelt, Jeffrey W. Griffin, David M. Sheen
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Patent number: 7405692Abstract: Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine if a concealed object is being carried. This determination includes establishing data corresponding to an image of the individual with a pair of opposed, semi-cylindrical array panels each configured to interrogate the individual with electromagnetic radiation in the 200 MHz to 1 THz range.Type: GrantFiled: October 30, 2003Date of Patent: July 29, 2008Assignee: Battelle Memorial InstituteInventors: Douglas L. McMakin, Thomas E. Hall, David M. Sheen, Ronald H. Severtsen
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Patent number: 7034746Abstract: A method and apparatus to remove human features utilizing at least one transmitter transmitting a signal between 200 MHz and 1 THz, the signal having at least one characteristic of elliptical polarization, and at least one receiver receiving the reflection of the signal from the transmitter. A plurality of such receivers and transmitters are arranged together in an array which is in turn mounted to a scanner, allowing the array to be passed adjacent to the surface of the item being imaged while the transmitter is transmitting electromagnetic radiation. The array is passed adjacent to the surface of the item, such as a human being, that is being imaged. The portions of the received signals wherein the polarity of the characteristic has been reversed and those portions of the received signal wherein the polarity of the characteristic has not been reversed are identified. An image of the item from those portions of the received signal wherein the polarity of the characteristic was not reversed is then created.Type: GrantFiled: March 24, 2005Date of Patent: April 25, 2006Assignee: Bettelle Memorial InstituteInventors: Douglas L. McMakin, David M. Sheen, Thomas E. Hall, Wayne M Lechelt, Ronald H. Severtsen
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Publication number: 20040090359Abstract: Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine if a concealed object is being carried. This determination includes establishing data corresponding to an image of the individual with a pair of opposed, semi-cylindrical array panels each configured to interrogate the individual with electromagnetic radiation in the 200 MHz to 1 THz range.Type: ApplicationFiled: October 30, 2003Publication date: May 13, 2004Inventors: Douglas L. McMakin, Thomas E. Hall, David M. Sheen, Ronald H. Severtsen
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Patent number: 6703964Abstract: Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine one or more body measurements at least partially covered by the individual's clothing. The invention further includes techniques to interrogate an object with electromagnetic radiation in the millimeter and/or microwave range to provide a volumetric representation of the object. This representation can be used to display images and/or determine dimensional information concerning the object.Type: GrantFiled: November 21, 2002Date of Patent: March 9, 2004Assignee: Battelle Memorial InstituteInventors: Douglas L. McMakin, Ronald H. Severtsen, Thomas E. Hall, David M. Sheen, Mike O. Kennedy
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Publication number: 20030128150Abstract: Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine one or more body measurements at least partially covered by the individual's clothing. The invention further includes techniques to interrogate an object with electromagnetic radiation in the millimeter and/or microwave range to provide a volumetric representation of the object. This representation can be used to display images and/or determine dimensional information concerning the object.Type: ApplicationFiled: November 21, 2002Publication date: July 10, 2003Inventors: Douglas L. McMakin, Ronald H. Severtsen, Thomas E. Hall, David M. Sheen, Mike O. Kennedy
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Patent number: 6507309Abstract: Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine one or more body measurements at least partially covered by the individual's clothing. The invention further includes techniques to interrogate an object with electromagnetic radiation in the millimeter and/or microwave range to provide a volumetric representation of the object. This representation can be used to display images and/or determine dimensional information concerning the object.Type: GrantFiled: March 16, 2001Date of Patent: January 14, 2003Assignee: Battelle Memorial InstituteInventors: Doug L. McMakin, Ronald H. Severtsen, Thomas E. Hall, David M. Sheen
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Publication number: 20020130804Abstract: Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine one or more body measurements at least partially covered by the individual's clothing. The invention further includes techniques to interrogate an object with electromagnetic radiation in the millimeter and/or microwave range to provide a volumetric representation of the object. This representation can be used to display images and/or determine dimensional information concerning the object.Type: ApplicationFiled: March 16, 2001Publication date: September 19, 2002Inventors: Doug L. McMakin, Ronald H. Severtsen, Thomas E. Hall, David M. Sheen
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Patent number: 5859609Abstract: A wideband holographic cylindrical surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply Fast Fourier Transforms and obtain a three dimensional cylindrical image.Type: GrantFiled: September 11, 1996Date of Patent: January 12, 1999Assignee: Battelle Memorial InstituteInventors: David M. Sheen, Douglas L. McMakin, Thomas E. Hall, Ronald H. Severtsen
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Patent number: 5557283Abstract: A wideband holographic surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply a three dimensional backward wave algorithm.Type: GrantFiled: May 12, 1995Date of Patent: September 17, 1996Inventors: David M. Sheen, H. Dale Collins, Thomas E. Hall, Douglas L. McMakin, R. Parks Gribble, Ronald H. Severtsen, James M. Prince, Larry D. Reid