Patents Assigned to GE Homeland Protection, Inc.
  • Patent number: 7605920
    Abstract: Disclosed herein is a method of identifying a unidentified substance, comprising directing light from a light emitting source directly upon a stationary unidentified substance; collecting fluorescence from the unidentified substance in a detector; wherein the detector comprises a lock-in detection system; analyzing the fluorescence; and identifying the unidentified substance. Disclosed herein is a detection system comprising a light emitting source; a circuit board; wherein the trigger is operative to trigger a pulse of electrons from the circuit board to the light emitting source; a detector; and a central processing unit, wherein fluorescence generated from an unknown unidentified substance that is illuminated by light from the light emitting source is collected in the detector and analyzed in the central processing unit.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: October 20, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Steven Francis LeBoeuf, Alexei Vasilievich Vertiatchikh, Rui Chen, Radislav Alexandrovich Potyrailo
  • Patent number: 7594422
    Abstract: Embodiments of the invention provide novel, industrially applicable, and non-obvious apparatus and methods for automatically, routinely, and accurately calibrating a trace detection portal. Embodiments of the apparatus include a calibrant container; a substance (or substances) uniquely identifiable by a trace detection portal as a calibrant; unique placement of the calibrant container's outlet relative to a substance collection port of a sample collection chamber; and/or computer executable instructions that, when executed by a computer processor, cause a consistent release of a measured amount of calibrant into the sample collection chamber upon command and/or at pre-determined time intervals.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: September 29, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Kevin J. Perry, Michael E. Patterson
  • Patent number: 7595638
    Abstract: An inspection system positions a balancing shim to asymmetrically balance a magnetic field generated by an inductive sensor, which forms part of the inspection system. Additionally, relays and capacitors used to tune the inductive sensor to a desired resonance frequency are geometrically arranged to minimize electrical interference generated by operation of the relays and capacitors. A shielding device, which may be formed on a printed circuit board, protects a magnetic field generated by the inductive sensor from external electromagnetic interference. A slot positioned in the inductive sensor may be used to tune a resonant mode of the inductive sensor to accurately and particularly detect metallic shanks and/or other metallic objects in shoes, socks, and/or clothing.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: September 29, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Christopher Crowley
  • Patent number: 7594447
    Abstract: An apparatus is provided for detecting whether a person has handled explosives, narcotics or other substances of interest. The apparatus includes a metallic sample collection surface on which a person may place a finger. Upon removal of the finger, the metallic sample collection surface is moved to a desorber. The desorber heats the metallic surface sufficiently to vaporize residue transferred from the person. The vaporized residue then is transmitted to a detector for analysis. The detector also may include a fingerprint reading apparatus for reading the fingerprint of the person and comparing the fingerprint to known fingerprint data.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: September 29, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Joseph D. Napoli
  • Patent number: 7583783
    Abstract: An x-ray computer tomograph, having an x-ray source that generates a fan beam of x radiation and having a two-dimensional energy-resolving detector array, both of which are situated on opposite sides of a gantry so that the x-ray radiation passes completely through a test region. A row of detector elements is situated in the plane of the fan beam and is adjoined in at least one direction perpendicular to the fan beam by several additional rows of detector elements. During the measurement, no secondary collimator is positioned between the test region and the detector array. The following equation applies for the width (B) of the detector elements: B=ZP*arc sin(qmax*?), where qmax is a pulse transmission, ? is a wavelength of the x radiation, and ZP is the distance of the measurement point from the detector.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: September 1, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Geoffrey Harding
  • Patent number: 7580440
    Abstract: A device for emission of electromagnetic radiation comprises a source of atomic particles and a collector disposed to receive atomic particles from the source. The collector comprises an emission medium, the medium comprising a crystal having a spatial dimension in the range from about 10 nanometers to about 50 micrometers, wherein the emission medium has the capability to generate opposing charge pairs upon absorption of atomic particles from the source and to emit electromagnetic radiation upon recombination of the pairs. The emission may be via spontaneous emission or, in certain embodiments, by stimulated emission. A laser assembly comprising this device, and methods for making the device are also presented herein.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: August 25, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Steven Francis LeBoeuf, Radislav Alexandrovich Potyrailo, William Hullinger Huber, Rui Chen, Todd Ryan Tolliver, Alexei Vasilievich Vertiatchikh
  • Patent number: 7577544
    Abstract: A method for determining a location and characterization of an object using a magnetic gradient tensor measurement of the object is provided. The method includes determining an object magnetic field candidate predicted from one of an object measured magnetic field gradient and an assumed object magnetic moment magnitude, and determining an object vector location and an object vector magnetic moment by combining the object magnetic field candidate with an object measured magnetic field.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: August 18, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Peter Victor Czipott, David Oliver Walsh, Alexander Robert Perry
  • Patent number: 7573578
    Abstract: According to one embodiment, a micro-electrical mechanical system apparatus includes first and second mirrors that define a cavity. Moreover, a photonic band-gap structure coats a surface of at least one of the first or second mirrors to improve reflectivity. Another embodiment includes a third mirror, wherein the second and third mirrors form a second cavity. The spaces between the mirrors might comprise, for example, a pair of Fabry-Perot filter cavities for a spectrometer.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: August 11, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Anis Zribi, Glenn S. Claydon, David C. Hays, Stacey Kennerly, Long Que, Shankar Chandrasekaran, Shivappa Goravar, Ayan Banerjee
  • Patent number: 7574089
    Abstract: An optofluidic device is provided. The device includes a cladding region having a first refractive index, and a channel defined by the cladding region such that the cladding region forms an inner surface or an interface of the channel. The channel is configured to house one or more of a liquid, a solid, a gas, a colloidal, or a suspension sample, wherein the sample has a second refractive index, where the channel is configured to guide radiation, and where the first refractive index is lower than the second refractive index.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: August 11, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Anis Zribi, Wei-Cheng Tian, Yuan-Hsiang Lee, Min-Yi Shih
  • Publication number: 20090166531
    Abstract: Apparatus and method for generating ammonia gas. In one aspect, a method for generating ammonia gas for use in an ion mobility spectrometry (IMS) system is provided. The method includes inserting a device into a space defined within the IMS system, the device including an ammonia compound. The method also includes activating to decompose and to produce the ammonia gas without producing water vapor. The method also includes emitting the ammonia gas into the IMS system.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicant: GE HOMELAND PROTECTION, INC.
    Inventor: Ralph J. Reda
  • Publication number: 20090169051
    Abstract: A system and method for identifying an object based on its estimated mass. In one aspect, a method for estimating a mass of an object is provided. The method includes acquiring image data including a plurality of image elements, calculating a histogram based on the image data, calculating a computed tomography (CT) number of the object using an anisotropic erosion operator, and determining a perimeter of the object. The method also includes calculating an estimated mass of the object using the CT number and a first subset of image elements of the plurality of image elements, the first subset of image elements defined by the perimeter of the object, and outputting at least one of the estimated mass of the object and an image including the object.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicant: GE HOMELAND PROTECTION, INC.
    Inventors: Dimitrios Ioannou, Todd Gable
  • Patent number: 7551287
    Abstract: According to one embodiment, a micro-electrical mechanical system apparatus includes a bi-stable actuator and at least one movable Fabry-Perot filter cavity mirror coupled to the bi-stable actuator. The bi-stable actuator may be associated with a first latched position and a second latched position and may comprise, for example, a thermal device, an electrostatic device (e.g., a parallel plate or comb drive), or a magnetic device. According to some embodiments, a relationship between a voltage applied to an actuator of a Fabry-Perot filter and an amount of displacement associated with a movable mirror is substantially linear.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: June 23, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Anis Zribi, Glenn S. Claydon, David C. Hays, Stacey Kennerly, Long Que, Shankar Chandrasekaran, Shivappa Goravar, Ayan Banerjec
  • Patent number: 7548606
    Abstract: An integrated detection system that includes a first threat detection apparatus and a second threat detection apparatus is provided. The first threat detection apparatus may identify one or more areas within an item of baggage that may contain threats. Example threats include, but are not limited to, explosives, weapons, illegal drugs, and hazardous matter, among others. The remaining areas are in theory deemed clear of threats. The second threat detection apparatus may be configured to inspect only the suspect areas of the item of baggage that was previously identified by the first threat detection apparatus. This improves throughput and lowers the false positive rate. A method for intelligently fusing the independent information obtained by the first and second threat detection apparatuses is also provided.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: June 16, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Sondre Skatter, Armin Uwe Schmiegel
  • Patent number: 7541577
    Abstract: Disclosed herein are methods for analyzing ion mobility data. In one embodiment, a method for analyzing ion mobility spectrometry data is disclosed. The method comprises conducting a number of ion mobility scans on a sample, generating an ion map comprising a first ion line, comparing the first ion line to a standard deviation, wherein the standard deviation is calculated from the system measurement noise, and determining if the sample is a contraband substance.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: June 2, 2009
    Assignees: General Electric Company, GE Homeland Protection, Inc.
    Inventors: David Michael Davenport, Thomas Paul Repoff, Pierino Gianni Bonanni, Richard Louis Zinser
  • Patent number: 7539283
    Abstract: Methods and systems for scanning a container for contraband are provided. In one aspect, a method includes scanning the container using computed tomography (CT) to identify a location of an item of interest, determining a nuclear resonance fluorescence (NRF) scan configuration based on the location of the item of interest, positioning the container in the NRF scan configuration, irradiating the item of interest, detecting gamma rays emitted from the item of interest to generate signals representative of the detected gamma rays, and analyzing the generated signals to determine a presence of contraband.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: May 26, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Joseph Bendahan
  • Patent number: 7528367
    Abstract: An ITMS includes an inlet for receiving a sample that will be tested for a substance of interest. The inlet communicates with an ionization chamber and a drift chamber communicates with the downstream end of the ionization chamber. A first grid electrode extends across the downstream end of the ionization chamber and a second grid electrode is slightly downstream from and parallel to the first grid electrode. A slight potential bias is applied to the first grid electrode to hold the ions in the potential well between the first and second grid electrodes. However a pulse is applied periodically to the first grid electrode to accelerate ions into the drift chamber. The accumulation of the ions in the potential well prior to generation of the pulse results in a thinner band of ions ejected into the drift chamber and hence achieves higher resolution.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: May 5, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Paul E. Haigh
  • Patent number: 7518721
    Abstract: A lateral flow device is disclosed. The lateral flow device includes a substrate having a flow path and a detection zone disposed along the flow path. The detection zone includes an immobilized target-binding moiety directed against a target of a Raman-active complex. Also disclosed is a method of conducting a lateral flow assay and detection system. The method includes i) defining a flow path having a detection zone; ii) flowing a sample down the flow path; and iii) immobilizing a Raman-active complex if present, at the detection zone. The sample includes a Raman-active complex or a Raman-active tag.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: April 14, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Michael Craig Burrell, Frank J. Mondello, Yuan-Hsiang Lee, Patrick Ronald Engel, Andrew David Pris
  • Patent number: 7515688
    Abstract: The invention relates to an anode module 1 for a liquid-metal anode X-ray source which has an electron entry window 3 in the region of focus 2. It is provided according to the invention that an X-ray beam exit window 4 lies opposite the electron entry window 3 of the anode module 1 and the exit angle ? of the X-ray beams 7 between an electron beam 6 entering through the electron entry window 3 along the direction of incidence 5 and the X-ray beams 7 exiting through the X-ray beam exit window 4 is between 5° and 50°, in particular 15°. The invention also relates to an X-radiator with an electron source for the emission of electrons and a liquid-metal anode emitting X-ray beams 7 when the electrons strike, which has an anode module 1 with the above-named features.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: April 7, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Geoffrey Harding
  • Patent number: 7499160
    Abstract: Methods for amplifying the Raman signal of primary SERS nanoparticles are provided. One method generally includes binding secondary SERS particles to the primary SERS nanoparticles after binding of the primary SERS nanoparticles. In another method, secondary SERS nanoparticles are brought in close proximity to the primary SERS nanoparticles, wherein the secondary nanoparticles are free of a reporter molecule or have a reporter molecule different from that of the primary SERS nanoparticles.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: March 3, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventors: Michael Burrell, Frank John Mondello, Tracy Lynn Paxon
  • Patent number: 7492862
    Abstract: An X-ray computed tomography scanning system for inspecting an object includes a platform configured to support the object. The platform is rotatable about an axis and movable in a direction parallel to the axis. At least one X-ray source is fixedly positioned with respect to the platform and configured to transmit radiation through the object. At least one X-ray detector is fixedly positioned with respect to the platform. The at least one X-ray detector is configured to detect the radiation transmitted through the object and generate a signal representative of the detected radiation.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: February 17, 2009
    Assignee: GE Homeland Protection, Inc.
    Inventor: Joseph Bendahan