Patents Assigned to BAE Systems Information
  • Patent number: 8815614
    Abstract: A system and method for improving the prompt dose radiation response of mixed-signal integrated circuits is disclosed. An internal analog circuit inside a mixed-signal integrated circuit generates an internal analog reference voltage that has been used for various purposes in the integrated circuit. At least one external capacitor is added either internal or external to a device package of the integrated circuit. The external capacitor reduces any change in the internal reference voltage due to prompt dose radiation by stabilizing the internal reference voltage and thus improves prompt dose radiation response of mixed-signal integrated circuits. A much greater value of capacitance may be provided without increase in dielectric rupture suceptability or decrease in manufacturing yield which may be associated with added on-chip capacitance. This increased capacitance primarily reduce the amount of disturbance caused to the internal node during a prompt dose radiation event.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: August 26, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: John C. Rodgers
  • Patent number: 8816267
    Abstract: A method and system are provided for the monitoring of direct current bias, the system including switching an amplifier of known scale factor from low to high; monitoring a step change in bias generated by the gain change; measuring, the response to the bias change via appropriate peak detection logic; and determining the amount of bias present at an input based on AC response and the amplifier scale factor.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: August 26, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Walter J. Sears, Aaron B. Johnson
  • Patent number: 8816268
    Abstract: Techniques are disclosed that provide time delay integration (TDI) in detection signal processing (such as a signal generated by an IR sensor). The techniques can be implemented, for example, to provide blanking and/or TDI functionality at the readout integrated circuit (ROIC) level for active focal plane array (FPA) elements or other transducer elements. In one example embodiment, an integrator circuit is configured with one or more switches for allowing integration of multiple input signal events such that reset of the integration is controlled independently and can be reset equal to or less often than the number of single events, thereby allowing one or more detected events to be integrated together within a frame interval.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: August 26, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: James A. Stobie
  • Publication number: 20140233895
    Abstract: A fiber-optic connector for connecting an optical fiber to other optical assemblies is disclosed. The fiber-optic connector includes a top plate having a window of similar refractive index and transmission index as the material of an optic fiber to be contained within the fiber-optic connector. The fiber-optic connector also includes a ferrule connected to the top plate via multiple spring-loaded screws. The ferrule includes an interface and an insert. The insert is capable of firmly gripping an optical fiber. In order to reduce Fresnel reflection losses of the fiber-optic connector, the window is pre-coated with an anti-reflective surface on the side opposite an optic fiber to be contained within the fiber-optic connector.
    Type: Application
    Filed: September 26, 2013
    Publication date: August 21, 2014
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Joseph M. Owen, David P. Kelly
  • Publication number: 20140231578
    Abstract: Embodiments of the present invention relate to an unmanned aerial vehicle (UAV) and a method of use. The UAV may comprise a UAV platform designed around a sensor system. The UAV platform may adjust itself in order to stabilize the sensor system. The UAV platform may comprise front UAV wings, back UAV wings, and a payload chamber. The front UAV wings and back UAV wings may adjust themselves by rotating about a line approximately perpendicular to the UAV's flight line. The payload chamber may adjust itself by rotating about the UAV's flight line. The sensor system may be located in an optimal location on the UAV platform, for example, behind the nose as far back as the front UAV wings. The sensor system may comprise an infrared (IR) and a visible camera.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 21, 2014
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: BAE Systems Information and Electronic Systems Integration Inc.
  • Patent number: 8803052
    Abstract: A method for controlling autopilot roll capture of a rocket comprising adapting the start time and the rate of roll capture such that regardless of the initial rocket spin rate, the roll capture process is completed at a predetermined time.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: August 12, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: David Schorr, James H. Steenson, Jr.
  • Patent number: 8803542
    Abstract: A method for verifying stitching accuracy of a stitched chip on a wafer is disclosed. Initially, a set of test structures are inserted within a reticle layout. An exposure program is executed to control a photolithography equipment having a stepper to perform multiple exposures of the reticle on a wafer to generate a stitched chip on the wafer. Electrical measurements are then performed on the test structures at actual stitch boundaries of the stitched chip to evaluate stitching accuracy of the stitched chip.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: August 12, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Thomas J. McIntyre, Charles N. Alcorn, Matthew A. Gregory
  • Patent number: 8804132
    Abstract: A shearography system that operates while moving at significant speeds over a surface is disclosed. Two lasers are utilized and the distance between the two lasers is adjusted based on the altitude of the aircraft on which the shearography equipment is located, the speed of the aircraft, the distance between two lasers in the shearography equipment lasers, and the time difference between the laser pulses from each of the two lasers. The adjustment of the distance between the two lasers causes the angles of incidence and reflection to be the same for two sequential images and permits the moving shearography to work.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: August 12, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Christopher E Saxer
  • Patent number: 8803579
    Abstract: A system and method for controlling pulse width for electronic devices in real time is disclosed. The system includes a Digital Pulse Width Modulator (DPWM), a real time calibration circuit and a delay line circuit. The real time calibration circuit is configured to ensure proper fractional delay is applied to yield correct duty cycle of the DPWM. The delay line circuit comprising a multiplexer delay line with built in decoders, modulates the pulse width for fractional clock cycle delay.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: August 12, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: David D. Moser, Daniel M. Pirkl
  • Patent number: 8805301
    Abstract: A VLF beacon operates in the near field of the antenna, providing a low impedance (magnetic) wave located by employing simple amplitude gradient and phase alignment direction finding (DF) methods. When rotated, the beacon antenna radiates its signal with little attenuation. Beacon antennas include a loop antenna which has a 1/r3 B-field amplitude relationship with distance. The antenna radiation range is limited, but the detectable near field signal is strong. The receiver comprises a simple 2-channel RF front end with filtering and an A/D converter. The antenna for each channel is a much smaller ferrite rod loaded loop.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: August 12, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Albert K. Dec, Marie Y. Alfred
  • Publication number: 20140222397
    Abstract: A front-end signal generator for hardware-in-the-loop simulators of a simulated missile is disclosed. The front-end signal generator is driven by the Digital Scene And Reticle Simulation-Hardware In The Loop (DSARS-HITL) simulator. The simulator utilizes a computer to calculate irradiance on an Electro-Optical/Infrared (EO/IR) detector. The generator converts irradiance values into voltages that are injected into the missile's electronics during simulation. The conversion is done with low latency and a high dynamic range sufficient for hardware-in-the-loop simulation. The generator is capable of emulating laser pulse inputs that would be present during laser-based jammer countermeasures. Computer control of the generator occurs via front-panel-data-port (FPDP).
    Type: Application
    Filed: August 8, 2013
    Publication date: August 7, 2014
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Jeffrey L JEW, Dennis R. CLARK, Nathan D. SMITH, Forrest C. VATTER, Anthony MAHAR
  • Patent number: 8794968
    Abstract: Methods and systems are provided for making more accurate range and marksmanship determinations in laser-based military engagements. These methods and systems allow a shooter and a target in a laser engagement system to be paired with one another in a substantially unambiguous manner. Such pairing allows the lasers to be used at full power and is particularly well suited for clustered environments in which multiple combatants may be in close proximity to one another. The methods and systems are also particularly well suited for testing new or experimental weapon systems by virtue of the more accurate range and marksmanship estimates provided.
    Type: Grant
    Filed: February 28, 2009
    Date of Patent: August 5, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Allister McNeish, Keith A. Kunz
  • Patent number: 8798105
    Abstract: A compact, lightweight, laser target designator uses a TIR bounce geometry to place an end-pumped gain element functionally in the center of the resonator path, thereby allowing the resonator path to be terminated by a pair of crossed Porro prisms, so that the designator produces a high quality beam that is insensitive to alignment and temperature, and is low in manufacturing cost. Some embodiments fold the Porro legs of the resonator path back toward the gain element for compactness. Embodiments use a single gain element as both an oscillator gain element with TIR and as an output amplifier gain element without TIR. Various embodiments use block optical elements in a planar layout on a standard support medium such as aluminum to facilitate automated manufacturing.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: August 5, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: John C. McCarthy, Katherine J. Snell, Christopher A. Miller
  • Patent number: 8791875
    Abstract: A method and apparatus is provided for avoiding pattern blockage due to scatter from an object in which an artificial surface directs the energy from the antenna prior to arriving at a blocking structure such that either the wave fronts of the energy are linear when they arrive at the blocking structure or the phase of the energy incident on the object is adjusted such that the energy reflected from the object is in phase with energy directly from the antenna radiating elsewhere in the far field pattern, or both.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: July 29, 2014
    Assignee: BAE Systems Information and Electronics Systems Integration Inc.
    Inventors: John T. Apostolos, David P. Charette, Roland A. Gilbert
  • Publication number: 20140206309
    Abstract: A system for providing situational awareness outside a temporary incident area network includes a prioritized connection module for connecting a mesh network at the incident area to one of a plurality of available communications channels, with the selection based not only on the availability of a communications channel but also on the associated expense, speed, reliability or bandwidth, so that high bandwidth traffic such as video and pictures can be reliably sent from the incident area to a location outside of the incident area. In one embodiment switching to a satellite phone network bypasses problems with terrestrial networks such as cell phone networks and landlines which may be down.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Michael F. Greene, William J. Delaney, Kristin A. Spang, Mark E. Kimbark
  • Patent number: 8787926
    Abstract: A system and method for the operation of a Spectrum Manager (SM) within a cognitive radio system includes two primary states of operation: SM at network initialization and SM at network operation. While in the network Initialization state, the SM's primary responsibility is to find an operating channel. After an operating channel is found, the SM moves from the network initialization state to the network operation state while executing a procedure to establish a network. While in the network operation state, the SM can execute other procedures, a procedure to update list of available channel from the incumbent database of channel and frequency data, a procedure to determine a signal type, a procedure to enter co-existence mode, deciding when to move to a backup channel and issuing calls for the same as well as background procedures such as looking for better backup channels when the SM is otherwise idle.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 22, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Apurva N. Mody
  • Patent number: 8788884
    Abstract: An approach to detection and repair of application level semantic errors in deployed software includes inferring aspects of correct operation of a program. For instance, a suite of examples of operations that are known or assumed to be correct are used to infer correct operation. Further operation of the program can be compared to results found during correct operation and the logic of the program can be augmented to ensure that aspects of further examples of operation of the program are sufficiently similar to the examples in the correct suite. In some examples, the similarity is based on identifying invariants that are satisfied at certain points in the program execution, and augmenting (e.g., “patching”) the logic includes adding tests to confirm that the invariants are satisfied in the new examples. In some examples, the logic invokes an automatic or semi-automatic error handling procedure if the test is not satisfied.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: July 22, 2014
    Assignees: Massachusetts Institute of Technology, BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Jeff Herbert Perkins, Stylianos Sidiroglou, Martin Conway Rinard, Eric Patrick Lahtinen, Paolo Mario Piselli, Basil C Krikeles, Timothy Alan Anderson, Greg Timothy Sullivan
  • Patent number: 8787020
    Abstract: A method and apparatus for cooling modules in a radio system is disclosed. The apparatus comprises an adaptor module with side walls and integrated heat exchanging elements. The adaptor module adapts the air flow from a chassis in the radio system such that the exiting ducting on the chassis efficiently mate with the air conduits in the modules. The adaptor allows the use of new high power density modules in the existing chassis without changing the module design. The use of adaptor module in chassis provides efficient cooling and use less volume in the chassis.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: July 22, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Eric G. Nelson
  • Patent number: 8786503
    Abstract: A dual purpose antenna is provided with the UHF antenna in the form of a pair of copper tubes to provide an off center fed dipole, with a pair of quadrafiler helix L1 and L2 GPS antennas stacked on top of the UHF antenna, and with the top section of the UHF dipole providing a ground plain for the GPS antenna. The antennas are fed internally by two coaxial feeds, one feeding the UHF antenna, the other passing through the UHF antenna to feed the GPS antennas. In one embodiment, a tuning coil is provided at the base of the UHF antenna by the coiling of the two coaxial feeds around a non-conductive mandrel, with copper taping placed on top of the coiled coaxial sections to provide an LC circuit to lower the resonant frequency of the UHF antenna to 225 MHz.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: July 22, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: John T. Apostolos, Benjamin G. McMahon
  • Patent number: 8782315
    Abstract: An expansion card and method for controlling a radio system integrates PCDD operations into a PCMCIA or ExpressCard which can be inserted into an external display, smart screen PCMCIA slot, or laptop ExpressCard or PCMCIA slot to allow an operator to control the radio system with a computer without any modification of the computer.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: July 15, 2014
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Jeffrey B. Canter, Boris Radovcic, Michael Christoff