Patents Assigned to BAE Systems Information
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Patent number: 6756536Abstract: A thermoelectric microactuator on a substrate includes a first temperature control element having a first surface bonded to the substrate and having a second surface. A first electrically nonconductive layer has a first surface bonded to the second surface of the first temperature control element and has a second surface. An actuator arm includes a first region bonded to the second surface of the first nonconductive layer and includes a flexure contiguously extending from the first region to an end cantilevered beyond the first nonconductive layer and forming an axis at the junction of the flexure and the first region. The first temperature control element controls the temperature of the actuator arm to thereby deflect the flexure about the axis.Type: GrantFiled: March 28, 2002Date of Patent: June 29, 2004Assignee: Bae Systems Information and Electronic Systems Integration Inc.Inventors: Thomas J. McIntyre, Andrew TS Pomerene
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Patent number: 6753816Abstract: A dual band/dual mode meander line antenna which include a ground plane, and a pair of substantially vertical radiating surface elements disposed substantially parallel to one another and perpendicular to ground plane. A generally horizontal top plate element is in substantially parallel relations to the ground plane. A wide band meander line element is capacitively connected to the horizontal top radiating element. At least one narrow band meander line element connected to the top horizontal radiating element.Type: GrantFiled: December 20, 2002Date of Patent: June 22, 2004Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: John T. Apostolos
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Patent number: 6752763Abstract: A transducer probe has a fully populated, integrated, matrix array of acoustical transducers for ultrasound imaging. The transducer arrays include tiled subarrays of transducers which may be switched (e.g., in real-time) between vertical and horizontal modes, and may further be configured to perform a first level of transmit and receive beam forming functionality with either horizontal or vertical scanning. Example applications include medical imaging, materials testing, and sonar systems.Type: GrantFiled: December 2, 2002Date of Patent: June 22, 2004Assignee: BAE Systems Information and Electronic Systems Integration INCInventor: Kenneth R. Erikson
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Patent number: 6754013Abstract: An apparatus for mounting optical components and adjusting its orientation with respect to the optical axis of other components in an optical system. In one embodiment, the multi-axis gimbal mounting apparatus utilizes a single piece main structure having a pair of live hinges and a locking feature that enhances two kinds of stability. First, the adjustable elements of the mount remain in the intended position when the locking mechanism is actuated with minimal cross-talk between the locking features and the adjustment features. Second, the adjustable elements of the mount remain in the intended position when the mount or the system in which it resides is exposed to extreme environmental perturbations of vibration, temperature, shock, and acceleration. This mount is suitable for use in military laser systems, cryogenic systems, and other industrial optical instruments subjected to harsh environments such as aircraft, ship, and battlefield deployed devices.Type: GrantFiled: August 12, 2002Date of Patent: June 22, 2004Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Chris L. Willis
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Patent number: 6744412Abstract: To provide horizon to zenith reception coverage for Differential GPS operations, two antennas with complementary patterns may be used. An antenna for high-angle coverage includes a ring of four dipoles excited to provide progressive-phase-omnidirectional (PPO) coverage. A cylindrical (e.g., octagonal) structure, with an upper edge at the diode horizontal centerline, extends upward from a ground plane section. An absorber configuration having a serrated upper edge portion extends around the dipoles above the cylindrical structure and has radiation absorption properties. For an octagonal configuration, the absorber configuration may include eight resistance card sections with triangular portions extending above the wall structure. A conical antenna pattern expanding upwardly can provide omnidirectional coverage above a selected elevation angle (e.g., above 55° elevation).Type: GrantFiled: October 29, 2002Date of Patent: June 1, 2004Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Alfred R. Lopez
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Patent number: 6741341Abstract: A dual mode seeker for intercepting a reentry vehicle or other target is disclosed. In one embodiment, the seeker is configured with an onboard 3D ladar system coordinated with an onboard IR detection system, where both systems utilize a common aperture. The IR and ladar systems cooperate with a ground based reentry vehicle detection/tracking system for defining a primary target area coordinate and focusing the IR FOV thereon. The IR system obtains IR image data in the IR FOV. The ladar system initially transmits with a smaller laser FOV to illuminate possible targets, rapidly interrogating the IR FOV. The ladar system obtains data on each possible target to perform primary discrimination assessments. Data fusion is employed to resolve the possible targets as between decoys/clutter and a reentry vehicle. The laser FOV is expandable to the IR FOV. Robust and reliable discrimination is obtained at high altitudes.Type: GrantFiled: February 3, 2003Date of Patent: May 25, 2004Assignee: BAE Systems Information and Electronic Systems Integration IncInventor: Michael E. DeFlumere
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Patent number: 6734538Abstract: A high-density electronics package compromises a chip-stack having a plurality of ICs. Oblong-shaped bumps comprising an electrically-conductive bonding material are disposed along one side of each IC in the chip-stack. The one side of each IC bearing the bumps is aligned with the bump-bearing side of all other ICs in the chip-stack. A portion of each oblong-shaped bump extends beyond the edge of its host IC. This portion of each bump is available to electrically and mechanically connect the chip stack to the next packaging layer, such as a printed circuit board.Type: GrantFiled: April 12, 2001Date of Patent: May 11, 2004Assignee: BAE Systems Information & Electronic Systems Integration, Inc.Inventor: Keith K. Sturcken
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Patent number: 6731247Abstract: A wideband meander line loaded antenna is provided with a capacitive feed to lower the reactance of the meander line antenna such that at lower frequencies the antenna reactance goes negative to cancel out the reactance of the meander line and distributed capacitance. The resultant lowering of the low frequency cut-off for the antenna permits the antenna to be used, for instance, in cellular phone applications in which not only are the cellular frequencies accommodated by the antenna, but also PCS and GPS frequencies as well. With the capacitive, feed the low frequency cut-off is lowered by as much as 30% over standard meander line loaded antennas.Type: GrantFiled: April 16, 2002Date of Patent: May 4, 2004Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: John T. Apostolos
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Patent number: 6720911Abstract: A system is provided for reducing the time that a ship must be maintained on station to collect calibration data by reducing the frequencies at which calibration data is to be collected. Since it is impractical to consider calibrating over elevation angle and polarization on the full-scale ship, an accurate scale model and test facility are utilized, with surface wave data being collected from the ship before model-based data can be utilized. In the subject system, the number of calibration frequencies used aboard ship is dramatically reduced by as much as 80%, thus reducing the time the ship must be on station when doing a calibration run. In one embodiment, the shipboard surface wave data for one elevation and one polarization is combined with surface wave and sky wave data from the scale model to generate an array manifold or database used in subsequent direction finding activities.Type: GrantFiled: August 14, 2002Date of Patent: April 13, 2004Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Norman E. Saucier
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Patent number: 6717233Abstract: A method for fabricating resistors within a semiconductor integrated circuit device is disclosed. A resistor is fabricated by first depositing a passivation layer on a semiconductor substrate having multiple transistors previously formed thereon. Next, a first contact window and a second contact window are formed through the first passivation layer at a first contact location and a second contact location, respectively. The first and second contact windows are then filled with metal, such as tungsten, and the metal at the first and second contact windows is planarized to form a first bottom contact and a second bottom contact, respectively. A resistive film, such as polysilicon, subsequently deposited over the first passivation layer. Next, a second passivation layer is formed over the resistive film. Finally, a first top contact and a second top contact are formed to respectively connect the first bottom contact and the second bottom contact to the resistive film.Type: GrantFiled: January 25, 2000Date of Patent: April 6, 2004Assignee: BAE Systems Information and Electronic Systems Integration, Inc.Inventors: Nadim Haddad, Charles N. Alcorn, Jonathan Maimon, Leonard R. Rockett, Scott Doyle
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Patent number: 6717685Abstract: A method and a system for implementing the method for determining an exposure gap between a mask and a resist material are provided. A first gratings is provided on one or more sides of a first structure defined by one or more first regions of the mask. A second gratings is provided on one or more sides of a second structure defined be one or more second regions of the mask. The first and the second structures are exposed to incident energy and the difference between a location in the first structure and a location in the second structure is measured. The exposure zap is extrapolated from the difference. The first and second structures are provided on the mask. The first gratings and the second gratings is provided by a mask writing tool.Type: GrantFiled: February 10, 2000Date of Patent: April 6, 2004Assignees: BAE Systems Information, Electronic Systems Integration, Inc.Inventor: Alek C. Chen
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Patent number: 6716728Abstract: A radiation hardened silicon-on-insulator transistor is disclosed. A dielectric layer is disposed on a substrate, and a transistor structure is disposed on the dielectric layer. The transistor structure includes a body region, a source region, a drain region, and a gate layer. The body region is formed on a first surface portion of the dielectric layer, the source region is formed on a second surface portion of the dielectric layer contiguous with the first surface portion, the drain region is formed on a third surface portion of the dielectric layer contiguous with the first surface portion, and the gate layer overlies the body region and being operative to induce a channel in that portion of the body region disposed between and adjoining the source region and the drain region. In addition, multiple diffusions are placed across two edges of the source region.Type: GrantFiled: March 5, 2002Date of Patent: April 6, 2004Assignee: BAE Systems Information and Electronic Systems Integration, Inc.Inventors: Robert Dockerty, Nadim Haddad, Michael J. Hurt, Frederick T. Brady
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Patent number: 6716669Abstract: Techniques for interconnecting high-density, structures that include temperature sensitive materials such as piezoelectric ultrasonic transducer arrays, optical detector arrays, MEMS and the like to other structures (e.g., integrated circuits or mechanical assemblies) are disclosed.Type: GrantFiled: October 31, 2002Date of Patent: April 6, 2004Assignee: Bae Systems Information and Electronic Systems Integration IncInventors: Kenneth R. Erikson, John W. Marciniec
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Patent number: 6707761Abstract: A real-time, three dimensional, acoustical camera and a real-time, range-gated, intensified, electro-optical camera have substantially overlapping fields of view for co-registered imaging of underwater objects at close ranges. The system is typically mounted in an unmanned underwater vehicle but may be used in other fixed or mobile configurations. The coupled fields of view are steerable in an arc around at least one axis over a large field of regard with a servo-controlled rotating mirror system, while the vehicle or the target is moving or hovering. An automated target recognition system uses the multi-modality images to provide enhanced target recognition and/or autonomous operation in unmanned missions.Type: GrantFiled: September 17, 2002Date of Patent: March 16, 2004Assignee: BAE Systems Information & Electronic Systems Integration INCInventor: Kenneth R. Erikson
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Patent number: 6704376Abstract: A real-time multi-user detection (MUD) receiver processing simultaneous digitally modulated interferers and transmissions in the same frequency optimizing performance for heavily loaded and overloaded multiple access systems by implementing an iterative TurboMUD receiver using tree-pruning, including confidence ordering, power-ordering, and a voting procedure. On the first iteration, user indices are ordered according to received powers. On subsequent iterations, the voting system provides soft decisions or confidence values utilized as soft inputs to single-user decoders. Voting is computationally attractive and allows the bank of decoders to operate on soft values, improving performance and reducing the number of turboMUD iterations. The bank of soft output error correction decoders produces an improved set of soft decisions or confidence values corresponding to the channel bits transmitted by each interfering user.Type: GrantFiled: July 29, 2002Date of Patent: March 9, 2004Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Diane G. Mills, Rachel E. Learned
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Patent number: 6703858Abstract: An SEU immune logic architecture includes a dual path logic gate coupled to a dual to single path converter. A first and a second logic element within the dual path logic gate are functionally and possibly structurally equivalent, and are coupled to receive input signals spanning redundant input signal sets. A given logic structure within the first logic element may receive specified input signals within a particular input signal set, while an analogous logic structure within the second logic element may receive corresponding input signals within the counterpart input signal set. A radiation induced transient pulse that affects one input signal may affect an output signal asserted by one logic structure; however, since the transient pulse doesn't affect a corresponding input signal applied to the analogous logic structure, the dual path logic gate may output at least one correctly valued signal when a transient pulse occurs.Type: GrantFiled: July 22, 2002Date of Patent: March 9, 2004Assignee: BAE Systems Information and Electronic Systems Integration, Inc.Inventor: Kenneth R. Knowles
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Publication number: 20040045007Abstract: A reconfigurable distributed signal processing system uses an object-oriented component-framework architecture in which the system permits large-scale software reuse. This is accomplished by the use of a framework and a number of reusable, reconfigurable software components that are hardware independent. The components communicate over a data fabric using open published APIs over one or more data communications mechanisms. Interchangeable software components are used that perform the signal processing. Interchangeability is assured by each component meeting a required interface in which the component inherits the required interface elements from component base classes. This use of inheritance to assure interface compliance also reduces the programming work required for developing a component. Most importantly, the interchangeable components are reconfigurable into various systems at runtime, as defined by a Plan.Type: ApplicationFiled: August 30, 2002Publication date: March 4, 2004Applicant: BAE SYSTEMS INFORMATION ELECTRONIC SYSTEMS INTEGRATION, INC.Inventors: Robert P. Boland, Peter Simonson, Jeffrey F. Bryant, Douglas K. Dalrymple, David R. Wardwell
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Publication number: 20040045009Abstract: A method for operating a system having a plurality of software components includes an observation tool in the form of a control panel that is first attached to one of the components. The control panel then configures itself based on information derived from the component. The configuration consists of the discovery of all the externally accessible attributes of the component and the properties of the attributes such as name, data type, legal value and the like. The user may then effect changes in the component using this common mechanism. Since components have a common interface, an observation tool may interact with any component.Type: ApplicationFiled: November 8, 2002Publication date: March 4, 2004Applicant: BAE SYSTEMS INFORMATION ELECTRONIC SYSTEMS INTEGRATION, INC.Inventor: Jeffrey F. Bryant
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Patent number: 6700833Abstract: A method and system for underwater detection of fully or partially buried objects such as sea mines and underwater cables, consisting of a mobile underwater platform configured with a real-time, three dimensional acoustical camera with a downward directed field of view used as an imaging interferometer, coordinated with a high-intensity, low frequency acoustical transmitter directed as to disturb the loose particulate or elastic matter comprising the seafloor within the field of view of the camera. The images recorded by the camera display the relative motion of the seafloor material before and after an acoustical pulse, in contrast to the lesser or no motion of submerged solid objects. Distinguishing man-made from natural objects is aided by recognizing geometric shapes apparent within the varying image density, not common in nature.Type: GrantFiled: August 14, 2002Date of Patent: March 2, 2004Assignee: BAE Systems Information and Electronic Systems Integration IncInventor: Kenneth R. Erikson
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Publication number: 20040037253Abstract: In a communications or jamming system, accurate timing of the transmission of digitally processed signals is accomplished through the use of standard off-the-shelf components. In order to eliminate the need for high-cost, difficult to develop, specific digital hardware or realtime synchronous software not available from the standard off-the-shelf components, the output from the non-real time components is coupled to a realtime interface that assures nanosecond timing accuracy regardless of timing errors introduced by the off-the-shelf components. In one embodiment, the signals to be transmitted are digitized and then packetized, with the data to be transmitted reconstructed using non-real time digital processing.Type: ApplicationFiled: August 22, 2002Publication date: February 26, 2004Applicant: BAE SYSTEMS INFORMATION ELECTRONIC SYSTEMS INTEGRATION, INC.Inventors: Robert P. Boland, Peter Simonson, Peter O. Luthi, Matthew J. Thiele