Patents Assigned to Science Applications International Corporation
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Patent number: 7372040Abstract: A broad spectrum neutron detector has a thermal neutron sensitive scintillator film interleaved with a hydrogenous thermalizing media. The neutron detector has negligible sensitivity to gamma rays and produces a strong and unambiguous signal for virtually all neutrons that interact with the hydrogenous volume. The interleaving of the layers of thermal neutron sensitive phosphors helps ensure that all parts of the thermalizing volume are highly sensitive.Type: GrantFiled: June 12, 2007Date of Patent: May 13, 2008Assignee: Science Applications International CorporationInventors: Raulf M. Polichar, Janis Baltgalvis
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Patent number: 7368717Abstract: A system for detecting and graphically displaying a contents of a fast-moving target object comprises: a radiation source, having a position such that at least a portion of radiation emitted from the radiation source passes through the fast-moving target object, the fast-moving target object having a variable velocity and acceleration while maintaining a substantially constant distance from the radiation source and being selected from the group consisting of: a vehicle, a cargo container and a railroad car; a velocity measuring device configured to measure the variable velocity of the fast-moving target object; a detector array comprising a plurality of photon detectors, having a position such that at least some of the at least a portion of the radiation passing through the target object is received thereby, the detector array having a variable count time according to the variable velocity and a grid unit size; a counter circuit coupled to the detector array for discretely counting a number of photons enterinType: GrantFiled: December 2, 2005Date of Patent: May 6, 2008Assignee: Science Applications International CorporationInventors: Victor V. Verbinski, Scott T. Smith, Judith Maxwell, legal representative, Jeffrey M. Adams, Ryan Shyffer, Kenneth H. Valentine
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Publication number: 20080099627Abstract: Pulsed detonation engines (PDEs) are adapted for use in reaction control systems (RCS), such as thrusters for orbital correction and control (e.g., for earth-orbiting satellites), divert thrust generation and control for space-based interceptor devices, and for missile trajectory correction and motion control. According to one aspect of the invention, PDEs are adapted for motion control of so-called “kill vehicles,” which are small devices, typically launched from satellites, for strategic missile defense.Type: ApplicationFiled: September 15, 2006Publication date: May 1, 2008Applicant: SCIENCE APPLICATIONS INTERNATIONAL CORPORATIONInventor: Shmuel Eidelman
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Patent number: 7365332Abstract: A system for detecting and graphically displaying a contents of a fast-moving target object comprises: a radiation source, having a position such that at least a portion of radiation emitted from the radiation source passes through the fast-moving target object, the fast-moving target object having a variable velocity and acceleration while maintaining a substantially constant distance from the radiation source and being selected from the group consisting of: a vehicle, a cargo container and a railroad car; a velocity measuring device configured to measure the variable velocity of the fast-moving target object; a detector array comprising a plurality of photon detectors, having a position such that at least some of the at least a portion of the radiation passing through the target object is received thereby, the detector array having a variable count time according to the variable velocity and a grid unit size; a counter circuit coupled to the detector array for discretely counting a number of photons enterinType: GrantFiled: December 2, 2005Date of Patent: April 29, 2008Assignee: Science Applications International CorporationInventors: Victor V. Verbinski, Scott T. Smith, Judith Maxwell, legal representative, Jeffrey M. Adams, Ryan Shyffer, Kenneth H. Valentine
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Patent number: 7352844Abstract: The system and method described herein facilitate back-to-back automatic scanning of moving vehicles without have the vehicles stop in the scanning zone. The system includes a scanning zone that comprises a radiation source and a radiation source detector. The system further includes a first sensor component for automatically sensing when a first portion of the moving target has passed through the scanning zone and a second portion of the moving target is about to enter the scanning zone, wherein the first sensor component sends a signal to the automated target inspection system to initiate a scan of the second portion upon sensing that the second portion of the target is about to enter the scanning zone.Type: GrantFiled: April 2, 2007Date of Patent: April 1, 2008Assignee: Science Applications International CorporationInventors: Ernest E. Muenchau, Rex D Richardson
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Publication number: 20080074271Abstract: Three-dimensional objects, such as product packages or gaming tokens, have formed thereon a three-dimensional antenna pattern coupled to a radio frequency transponder, such as an RFID tag. The antenna pattern permits signals from the transponder to be received regardless of the orientation or stacking condition of the objects. In one variation, a gaming token has formed thereon antenna portions on a top, bottom, and sides thereof, and a label having an RFID chip and antenna connectors is applied to the gaming token, thus coupling the RFID chip to the antenna that is formed around the gaming token.Type: ApplicationFiled: September 27, 2006Publication date: March 27, 2008Applicant: Science Applications International CorporationInventor: Jan N. Hodges
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Publication number: 20080053058Abstract: Pulsed detonation engines (PDEs) are adapted for use in reaction control systems (RCS), such as thrusters for orbital correction and control (e.g., for earth-orbiting satellites), divert thrust generation and control for space-based interceptor devices, and for missile trajectory correction and motion control. According to one aspect of the invention, PDEs are adapted for motion control of so-called “kill vehicles,” which are small devices, typically launched from satellites, for strategic missile defense.Type: ApplicationFiled: May 17, 2007Publication date: March 6, 2008Applicant: Science Applications International CorporationInventor: Shmuel Eidelman
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Patent number: 7335887Abstract: Described herein is system for the inspection of a target object. The system may include a gamma radiation source, a gamma detector and an image processor coupled to the gamma detector. When the inspection system is operating in a first active mode for imaging a target object, the gamma radiation source directs radiation at a target object, the radiation passes through the target object, and the image processor images the target object based on an output of the gamma detector. When the dual-mode system is operating in a second passive mode for imaging a target object, the target object is scanned by a neutron detector for radiation that is emitted by the target object, the emitted radiation from the target object is detected by the neutron detector and an indicator indicates the presence of the emitted radiation.Type: GrantFiled: June 2, 2006Date of Patent: February 26, 2008Assignee: Science Applications International CorporationInventors: Victor Verbinski, Dan Madson
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Patent number: 7336765Abstract: Described herein is a portable, self-contained, electronic radioscopic imaging system that utilizes a multiple camera imager and advanced processing techniques to image suspicious containers. An X-ray sensor or imager utilizes a scintillating screen that produces flashes of light when impinged by an X-ray in combination with at least one camera, or the like, to produce an integrated signal that represents the sum of a prescribed number of flashes of radiation that pass through the object in a given pixel area. A self-contained display and control unit utilizes digital signal processing in order to display to an operator the full dynamic range and resolution of an image-capturing novel sensor utilized within the imager.Type: GrantFiled: August 10, 2006Date of Patent: February 26, 2008Assignee: Science Applications International CorporationInventors: Richard Amiton, Gary Rush, Robert Sullivan
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Patent number: 7325475Abstract: A modular structure is disclosed that includes a variety of separate units having an armored panel secured to a frame portion. The units, which exhibit a variety of shapes and dimensions, may be joined together to form modular structures with different configurations. For example, the units may be joined together to form an enclosed modular structure with a box-like configuration that is loaded onto a bed of a conventional truck for the transportation of troops or equipment. When joined, the various frame portions form a frame that extends around the modular structure and provides support, and the various panels are positioned adjacent to each other to form a shell that encloses the individuals or equipment.Type: GrantFiled: July 20, 2006Date of Patent: February 5, 2008Assignee: Science Applications International CorporationInventor: Brian Keith Long
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Patent number: 7324064Abstract: System and method for improving the interference resistance of an radio frequency (RF) antenna system through passive prescreening of the RF energy incident upon the antenna. The invention physically partitions the RF environment into two or more sectors with respect to the direction of arrival of incident energy. The power level of the RF frequencies of interest incident upon each sector is determined such that whenever the power level exceeds a given threshold, the received signal from energy incident on that sector is modified.Type: GrantFiled: October 5, 2005Date of Patent: January 29, 2008Assignee: Science Applications International CorporationInventors: Cordell Fox, Kevin Wing, Robert A. Murphy, David C. Priester
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Patent number: 7321691Abstract: Described herein is a process for objectively and automatically determining spectral endmembers and transforming Spectral Mixture Analysis (SMA) from a widely used research technique into a user-friendly tool that can support the needs of all types of remote sensing. The process extracts endmembers from a spectral dataset using a knowledge-based approach. The process identifies a series of starting spectra that are consistent with a scene and its environment. The process then finds endmembers iteratively, selecting each new endmember based on a combination of physically and statistically-based tests. The tests combine spectral and spatial criteria and decision trees to ensure that the resulting endmembers are physically representative of the scene.Type: GrantFiled: April 11, 2007Date of Patent: January 22, 2008Assignee: Science Applications International CorporationInventors: Jessica Miriam Sunshine, Stefanie Tompkins, Kellie Sue McNaron-Brown
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Publication number: 20080008320Abstract: A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting circuit, thus increasing modulation bandwidth. Other features include insertion of a gain control amplifier in a chaotic receiver; signal filtering in chaotic transmitters and receivers; use of chaotic modulation techniques for cellular telephony applications; dual-transmitter and receiver systems; a dual receiver synchronization detector; interfaces to communication systems; analog chaotic signal modulation; use of multiple chaotic transmitters and receivers; digital algorithm improvement using a cube-law nonlinear component; a Gb-only receiver; a Gb-only transmitter; and positive slope transmitter and receiver systems.Type: ApplicationFiled: June 12, 2007Publication date: January 10, 2008Applicant: Science Applications International CorporationInventors: Daniel Hinton, Nelson Dew, Laurance Longtin, Charles Gardner, Shannon Martin, Michael Edwards, Antwong Berkley, Steven Bowser
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Publication number: 20080005792Abstract: A technique is disclosed for establishing a secure communication link between a first computer and a second computer over a computer network. Initially, a secure communication mode of communication is enabled at a first computer without a user entering any cryptographic information for establishing the secure communication mode of communication. Then, a secure communication link is established between the first computer and a second computer over a computer network based on the enabled secure communication mode of communication. The secure communication link is a virtual private network communication link over the computer network in which one or more data values that vary according to a pseudo-random sequence are inserted into each data packet.Type: ApplicationFiled: February 27, 2007Publication date: January 3, 2008Applicant: SCIENCE APPLICATIONS INTERNATIONAL CORPORATIONInventors: Victor Larson, Robert Short, Edmund Munger, Michael Williamson
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Patent number: 7314561Abstract: An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suitable plant matter in an attached periphyton bed, harvesting the algae/plant matter to produce a wet algal biomass, and mixing the wet biomass with a shredded fibrous material to produce a pulp. The pulp can be molded into a biodegradable package that can be utilized as a delivery vehicle to a site having nutrient-enrichable soil, where the package can be used as a soil amendment after being used as a delivery vehicle. The pulp can also be made into a paper product that is biodegradable and has the characteristic of enhancing soil quality.Type: GrantFiled: March 20, 2003Date of Patent: January 1, 2008Assignee: Science Applications International CorporationInventors: Kyle R. Jensen, R. Glenn Brosch, Roxanne M. Jensen
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Patent number: 7314597Abstract: A chemical agent detector with a lesser demand sensor, a greater demand sensor, an inlet; and a manifold; and methods associated therewith. The manifold is positioned between the inlet and the sensors, and includes a first intake associated with the lesser demand sensor, a second intake associated with a greater demand sensor, and at least one restrictor. The first intake is placed closer to the inlet than the second intake, and the second intake is isolated from the inlet by at least one restrictor within the manifold. The intakes and restrictor are sized and positioned such that the ratio between: the conductance of the path from the inlet to the greater demand sensor to the conductance of the path between the sensors effectively isolates the lesser demand sensor from the effects of the greater demand sensor.Type: GrantFiled: May 11, 2004Date of Patent: January 1, 2008Assignee: Science Applications International CorporationInventors: Steven Gerald Haupt, James Ha, David Rose
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Patent number: 7312906Abstract: Transmission and reflection type holograms may be formed utilizing a novel polymer-dispersed liquid crystal (PDLC) material and its unique switching characteristics to form optical elements. Applications for these switchable holograms include communications switches and switchable transmission, and reflection red, green, and blue lenses. The PDLC material offers all of the features of holographic photopolymers with the added advantage that the hologram can be switched on and off with the application of an electric field. The material is a mixture of a polymerizable monomer and liquid crystal, along with other ingredients, including a photoinitiator dye. Upon irradiation, the liquid crystal separates as a distinct phase of nanometer-size droplets aligned in periodic channels forming the hologram. The material is called a holographic polymer-dispersed liquid crystal (H-PDLC).Type: GrantFiled: November 8, 2005Date of Patent: December 25, 2007Assignee: Science Applications International CorporationInventors: Richard L. Sutherland, William K. Hagan, William J. Kelly, Bob Epling
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Patent number: 7307584Abstract: Methods and apparatus compress data, comprising an In-phase (I) component and a Quadrature (Q) component. Statistical characteristics of the data are utilized to convert the data into a form that requires fewer bits in accordance with the statistical characteristics. The data may be further compressed by transforming the data and by modifying the transformed data in accordance with a quantization conversion table that is associated with the processed data. Additionally, redundancy may be removed from the processed data with an encoder. Subsequent processing of the compressed data may decompress the compressed data in order to approximate the original data by reversing the process for compressing the data with corresponding inverse operations. Interleaved I and Q components can be processed rather than separating the components before processing the data. The processed data type may be determined by providing metadata to retrieve the appropriate quantization table from a knowledge database.Type: GrantFiled: November 6, 2006Date of Patent: December 11, 2007Assignee: Science Applications International CorporationInventors: Francis R. Cirillo, Paul L. Poehler
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Publication number: 20070257835Abstract: Methods and apparatus compress data, comprising an In-phase (I) component and a Quadrature (Q) component. Statistical characteristics of the data are utilized to convert the data into a form that requires fewer bits in accordance with the statistical characteristics. The data may be further compressed by transforming the data and by modifying the transformed data in accordance with a quantization conversion table that is associated with the processed data. Additionally, redundancy may be removed from the processed data with an encoder. Subsequent processing of the compressed data may decompress the compressed data in order to approximate the original data by reversing the process for compressing the data with corresponding inverse operations. Interleaved I and Q components can be processed rather than separating the components before processing the data. The processed data type may be determined by providing metadata to retrieve the appropriate quantization table from a knowledge database.Type: ApplicationFiled: November 6, 2006Publication date: November 8, 2007Applicant: SCIENCE APPLICATIONS INTERNATIONAL CORPORATIONInventors: Francis Cirillo, Paul Poehler
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Design, fabrication, testing, and conditioning of micro-components for use in a light-emitting panel
Patent number: 7288014Abstract: A method of forming micro-components is disclosed. The method includes pretesting and conditioning of the micro-components. The micro-components that fail testing or conditioning are discarded, and those remaining are assembled into a panel.Type: GrantFiled: January 14, 2004Date of Patent: October 30, 2007Assignee: Science Applications International CorporationInventors: Edward Victor George, Newell Convers Wyeth, Albert Myron Green