Patents Assigned to BAE Systems Information
  • METHOD AND APPARATUS FOR MULTIPLE SIGNAL IDENTIFICATION AND FINDING THE BASIS FUNCTIONS OF THE RECEIVED SIGNAL
    Publication number: 20100002816
    Abstract: A method is disclosed to detect a broad class of signals in Gaussian noise using higher order statistics. The method detects a number of different signal types. The signals may be in the base-band or the pass-band, single-carrier or multi-carrier, frequency hopping or non-hopping, broad-pulse or narrow-pulse etc. In a typical setting this method provides an error rate of 3% at a signal to noise ratio of 0 dB. This method gives the time frequency detection ratio which may be used to determine if the detected signal falls in Class Single-Carrier of Class Multi-Carrier. Additionally, this method may be used for a number of different applications such as multiple signal identification, finding the basis functions of the received signal.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 7, 2010
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INT
    Inventors: Apurva N. Mody, Paul D. Fiore
  • Soldier/ground vehicle passive ranging system utilizing compact spatiotemporal processor
    Patent number: 7642963
    Abstract: A method of two-source passive ranging comprising the steps of determining the coordinates of a first position and a second position wherein a first soldier or ground vehicle is located at the first position and a second soldier or ground vehicle is located at the second position; determining individual angles between said first and second positions and a radio frequency source; and using individual single-angle accuracy values to estimate the range from the first and second positions to the radio frequency source.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: January 5, 2010
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: John T. Apostolos, Ronald M. Yannone
  • Method And Apparatus For Coupling Multiple Microradios To an RFID Tag Antenna
    Publication number: 20090315676
    Abstract: Whether or not one utilizes direct DC coupling of the microradios to the antenna feed points or couples the RF energy from the dipoles associated with the spaced-apart contact pads on the microradio, in the subject invention one selects only those microradios that are within a certain variance of a preferred direction and then makes sure that the polarization direction of all of these radios is in the preferred direction are identical, in one embodiment by utilizing digital coding, which both activates the microradio and is used to sense the polarity associated with the connection from the signal source to the contact pads.
    Type: Application
    Filed: August 24, 2006
    Publication date: December 24, 2009
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIS SYSTEMS INTEGRATION INC.
    Inventors: Stephen A. Hedges, Kenneth R. Erikson
  • BANDWIDTH EFFICIENT WIRELESS NETWORK MODEM
    Publication number: 20090310619
    Abstract: A modem that provides efficient use of wireless network bandwidth in the presence of multiuser interference and noise is disclosed. The modem design provides for compatibility with existing network hardware and protocols so that new efficient modems may be added to the network without removing installed hardware and software.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 17, 2009
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Karl D. BROMMER
  • High power, motor driven underwater acoustic transducer
    Patent number: 7633835
    Abstract: A high intensity, low frequency underwater transducer for non-lethal deterrence of terrorist swimmers or divers in a body of water. The invention consists of a motor driven flextensional underwater transducer. In one embodiment, the phase of a transducer is sensed, enabling multiple projectors to achieve high acoustic sound pressure levels by beamforming and/or modal constructive interference (e.g. taking advantage of harbor bottom topography and boundaries.).
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: December 15, 2009
    Assignee: BAE Systems Information And Electronic Systems Integration Inc.
    Inventors: Kenneth R. Erikson, Eric M. Will
  • Combined radar and communications link
    Patent number: 7633426
    Abstract: In a CW radar system for detecting motion behind a wall (12) involving modulation of the radar transmission, means (34) are provided to interrupt the CW wave when motion is detected and to use the same radar transmitter (30) to transmit a serial digital message to a remote monitoring receiver (34). The encoding can include a receiver wakeup message to turn on the receive only when motion has been detected. In one embodiment, a microprocessor (28) is used to detect when motion exists behind a wall and to provide a tailorable message to modulate the radar's transmitter in the period when the CW signal from the radar is turned off after the motion detector.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: December 15, 2009
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Eldon M. Sutphin
  • Duplexer for simultaneous transmit and receive radar systems
    Patent number: 7633435
    Abstract: An enhanced duplexer (1) which includes a combination of high dynamic range (HDR) amplifiers (11, 17) and a naovel signal cancellation circuit topology (15). Return signals from the circulator (3) are fed into the first HDR amplifier (11). A portion of the transmit signal is sampled with a directional coupler (7) and amplified with a second HDR amplifier (17) and then combined with the output of the first HDR amplifier (11) using a second directional coupler (13). The gain and phase of the second io amplifier (17) are adjusted so the leakage signals are canceled (19, 21) to enable a radar system to simultaneously transmit and receive signals to and from an antenna with increased sensitivity of operation.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: December 15, 2009
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: David E. Meharry, Stephen A. Hedges
  • Motion Detection Systems Using CW Radar in Combination With Additional Sensors
    Publication number: 20090303100
    Abstract: Whether or not the CW radar is utilized for through-the-wall detection, additional one or more sensors are used with the CW radar to confirm the motion detection result or to in fact turn on the CW radar once motion or the physical presence of an individual has been sensed, thereby to provide confirmation of a less-reliable sensor with the use of the more reliable CW radar. Thus, the addition of other sensors provides lower power consumption, lower false alarm rates and better discrimination and classification of moving objects.
    Type: Application
    Filed: October 11, 2006
    Publication date: December 10, 2009
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INT
    Inventor: Paul D. Zemany
  • Data security verification for data transfers between security levels in trusted operating system
    Patent number: 7631342
    Abstract: A trusted computer system that offers Linux® compatibility and supports contemporary hardware speeds. It is designed to require no porting of common applications which run on Linux, to be easy to develop for, and to allow the use of a wide variety of modern development tools. The system is further designed to meet or exceed the Common Criteria EAL-5 or higher rating through incorporation of required security features, as well as a very high level of assurance for handling data at a wide range of sensitivity (e.g., classification) levels in a wide range of operational environments. This is achieved through the implementation of a well-layered operating system which has been designed from the ground up to enforce security, but which also supports Linux operating system functions and methods.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: December 8, 2009
    Assignee: BAE Systems Information Technology Inc.
    Inventors: Michael W. Focke, James E. Knoke, Paul A. Barbieri, Robert D. Wherley, John G. Ata, Dwight B. Engen
  • FUSION OF IMAGE BLOCK ADJUSTMENTS FOR THE GENERATION OF A GROUND CONTROL NETWORK
    Publication number: 20090296982
    Abstract: A method for fusion of image block adjustments for the generation of a ground control network constituting a Metric Information Network (MIN). Utilizing the subject. fusion algorithm it is possible to duplicate the results of an extremely large simultaneous image block adjustment by sequentially performing smaller image block adjustments on small overlapping areas of interest and taking the results to update a metric information network. Note, intermediate results for less than all the imagery provide usable updates to the metric information network. The result of the infusion of sequential image block adjustments into the metric information network is that one can obtain the accuracy provided by an extremely large single image block adjustment, and do so in manageable chunks or segments involving conventional computer resources.
    Type: Application
    Filed: May 20, 2009
    Publication date: December 3, 2009
    Applicant: BAE Systems Information and Electronics Systems Integration Inc.
    Inventor: John T. Dolloff
  • JOINT SYMBOL, AMPLITUDE, AND RATE ESTIMATOR
    Publication number: 20090290667
    Abstract: The system in one embodiment relates to tightly integrating parameter estimation, symbol hypothesis testing, decoding, and rate identification. The present invention provides Turbo-decoding for joint signal demodulation based on an iterative decoding solution that exploits error correction codes. The system iteratively couples an initial amplitude estimator, a symbol estimator, a bank of decoders, and a joint amplitude estimator to produce the symbol estimates.
    Type: Application
    Filed: June 25, 2009
    Publication date: November 26, 2009
    Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.
    Inventor: Thomas P. McElwain
  • Method for reworking a microwave module
    Patent number: 7621033
    Abstract: A specialized tool is provided for the removal of components in a microwave module in which a fixed tool having a channeled tip is positioned adjacent the component to be removed, with hot gas from the channeled tip melting the epoxy or solder and with the module forced against the fixed tool to remove it.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: November 24, 2009
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Richard A. Rochford, Robert F. Madej
  • Ultra compact UHF satcom antenna
    Patent number: 7623075
    Abstract: A miniature volumetric spherical geometry with multiple symmetric feeds is spaced from the surface of the vehicle or platform, with the antenna exhibiting both circular polarization that is orientation-independent or angle of arrival independent, while at the same time covering a broad band of frequencies from 243-318 MHz in one embodiment.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: November 24, 2009
    Assignee: BAE Systems Information and Electronics Systems Integration Inc.
    Inventor: John T. Apostolos
  • BROADBAND TRANSMISSION LINE TRANSFORMER
    Publication number: 20090284323
    Abstract: A broadband transmission line impedance transformer performs impedance transformation with improved frequency response and efficiency across a wide operational bandwidth. In particular, the bandwidth of a transmission line 2:1 impedance transformer may be significantly increased by adding an additional compensating capacitor as an internal component between interconnected transmission lines. This capacitor effectively improves low frequency response for a given length of transmission lines and decreases mismatch in an entire frequency range. The overall bandwidth ratio increases at least twice and mismatch decreases.
    Type: Application
    Filed: July 23, 2009
    Publication date: November 19, 2009
    Applicant: BAE systems Information and Electronic Systems Integration Inc.
    Inventor: Simon Y. LONDON
  • INTEGRATED ELECTRONICS MATCHING CIRCUIT AT AN ANTENNA FEED POINT FOR ESTABLISHING WIDE BANDWIDTH, LOW VSWR OPERATION, AND METHOD OF DESIGN
    Publication number: 20090284431
    Abstract: An integrated electronics matching circuit is placed directly at the feed points of an antenna to match a transmission line to the impedance of the antenna that results in preserving the originally-designed wide bandwidth of the antenna, which in one embodiment is 10:1. A methodology is provided for the design of the integrated electronics matching circuit that marries the output of an antenna modeling tool with an integrated circuit design tool, in which the S parameter outputs of the antenna modeling tool for the antenna ports are coupled to the corresponding ports of the integrated circuit designed by the integrated circuit design tool.
    Type: Application
    Filed: May 19, 2009
    Publication date: November 19, 2009
    Applicant: BAE Systems Information and Electronic Systems Intergration Inc.
    Inventors: David E. MEHARRY, Edward A. URBANIK, Arturs DINBERGS
  • MONOLITHICALLY INTEGRATED LIGHT-ACTIVATED THYRISTOR AND METHOD
    Publication number: 20090278409
    Abstract: A monolithically integrated light-activated thyristor in an n-p-n-p-n-p sequence consists of a four-layered thyristor structure and an embedded back-biased PN junction structure as a turn-off switching diode. The turn-off switching diode is formed through structured doping processes and/or depositions on a single semiconductor wafer so that it is integrated monolithically without any external device or semiconductor materials. The thyristor can be switching on and off optically by two discrete light beams illuminated on separated openings of electrodes on the top surface of a semiconductor body. The carrier injection of the turning on process is achieved by illuminating the bulk of the thyristor with a high level light through the first aperture over the cathode to create high density charge carriers serving as the gate current injection and to electrically short the emitter and drift layer.
    Type: Application
    Filed: July 22, 2009
    Publication date: November 12, 2009
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Yeuan-Ming SHEU
  • Photonic coupling scheme for photodetectors
    Patent number: 7611920
    Abstract: A room temperature operation polycrystalline infrared responsive photodetector, manufactured by a process, comprising the steps of patterning vacuum-deposited material and dry-etching a photonic crystal structure with resonant coupling tuned to long wavelengths.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: November 3, 2009
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Steven R. Jost
  • M-Algorithm multiuser detector with correlation based pruning
    Patent number: 7613228
    Abstract: A multiuser detector system with correlation based pruning including a parameter estimation module adapted to receive complex signals, and to produce estimated signature waveforms for each of K co-channel interfering signals. Pre-processing the estimated signature waveforms using an S-matrix module and producing a more valid set of hypotheses, wherein the S-matrix module uses apriori knowledge of an unnormalized cross correlation matrix, and processing the more valid set of hypotheses for pruning with an M-algorithm in a multiuser detector module. An improvement to the M-algorithm in which the interference structure based on the signal correlation matrix used during the optimization process aids in selecting a better subset of hypotheses to test. This approach has the benefit of reducing computational complexity and improving performance over the existing M-algorithm.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: November 3, 2009
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Joshua D Niedzwiecki
  • PHOTO-PATTERNED CARBON ELECTRONICS
    Publication number: 20090267189
    Abstract: A system is provided for the manufacture of carbon based electrical components including, an ultraviolet light source; a substrate receiving unit whereby a substrate bearing a first layer of carbon based semiconductor is received and disposed beneath the ultraviolet light source; a mask disposed between the ultraviolet light source and the carbon based semiconductor layer; a doping agent precursor source; and environmental chemical controls, configured such that light from the ultraviolet light source irradiates a doping agent precursor and the first carbon layer.
    Type: Application
    Filed: July 6, 2009
    Publication date: October 29, 2009
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Daniel N. CAROTHERS, Rick Thompson
  • Acoustic projector having minimized mechanical stresses
    Patent number: 7609586
    Abstract: An acoustic projector which includes an outer shell (8) formed of a reinforced epoxy resin having a longitudinal slot (14) has an inner reinforcing liner (20) formed of metal to reduce stress. The liner (20) extends throughout the length of the outer shell and has a longitudinal slot (22) aligned with the slot (14) formed in the shell (8). An arcuate shaped driver (10) is mounted along a portion of the I.D. of the metal liner (20) and separated therefrom by insulation (24).
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: October 27, 2009
    Assignee: BAE Systems Information And Electronic Systems Integration Inc.
    Inventors: Jason W. Osborn, Matthew M. DeAngelis