| Patent Number |
Title Of Patent |
Date Issued |
| 6804167 |
Bi-directional temporal correlation SONAR |
October 12, 2004 |
| A temporal correlation SONAR calculates the velocity and position of a water navigable craft. A first pulse and a second set of pulses are transmitted towards an ocean bottom. A tetrad of hydrophones on the craft receives echoes of the pulses. A correlation between the first pulse re |
| 6804042 |
Method for producing highly accurate frequency and FM of a laser |
October 12, 2004 |
| A method and apparatus for accurately and precisely controlling the frequency (wavelength) and periodic frequency modulation of a laser are provided. An ADC (Analog to Digital Converter) is used to sample the output of a modified interferometer used as a delay line discriminator, and |
| 6801688 |
Fiber optic collimator apparatus and method |
October 5, 2004 |
| Embodiments of the present invention are directed to a compact and stable fiber optic collimator that takes light from one or more optical fibers and generates one or more beams of collimated light at an increased specified diameter. The collimator is configured for easy assembly and for |
| 6801163 |
System and method for wideband pre-detection signal processing for passive coherent location app |
October 5, 2004 |
| A system and method for wideband pre-detection signal processing for PCL applications is disclosed. The method includes receiving an input signal, implementing a transformation operation on the input signal, compensating the input signal for channel distortion, demodulating and forming |
| 6801161 |
System and method for auto calibrated reduced rank adaptive processor |
October 5, 2004 |
| The present invention describes a space-time adaptive processing (STAP) system and method combining adaptive processing with automatic phase calibration providing an improved signal-to-noise ratio of a received signal. The adaptive processing is accomplished by calculating a reduced |
| 6799459 |
Gravity gradiometer and method for calculating a gravity tensor with increased accuracy |
October 5, 2004 |
| A method includes measuring an acceleration along an input axis of an accelerometer mounted to a gradiometer disc, the accelerometer having a coordinate axis that is parallel to a spin axis of the disc, and includes calculating a gravity tensor element as a function of the measured a |
| 6798381 |
System and method for measurement domain data association in passive coherent location applicati |
September 28, 2004 |
| A system and method for measurement domain data association in a passive coherent location system is disclosed. According to the system and method, detection reports are received and associated with line tracks. The detection reports correlate to target signals received at the passive |
| 6797401 |
Electromagnetic wave absorbing materials |
September 28, 2004 |
| Electromagnetic wave absorbing materials comprising magnetic alloy particles and an insulating matrix are disclosed. The magnetic alloy particles comprise a transition metal such as Fe and/or Co, and further comprise at least one refractory metal such as Ti, V, Cr, Zr, Nb, Mo, Hf, Ta |
| 6794222 |
HDI module with integral conductive electromagnetic shield |
September 21, 2004 |
| A method for making high density interconnected modules for radio-frequency, digital processing, or other circuits subject to radiated interference includes the step of applying sets of semiconductor chips to individual regions on an insulating flexible substrate. Electrically conduc |
| 6792795 |
System and method for detecting hazardous materials using agitation |
September 21, 2004 |
| A system and method for detecting contaminants in or on objects, having a movably mounted container for holding objects and having a plurality of perforations and an entrance opening through which objects may be placed into the container. A housing encloses the container and forms a barr |
| 6792058 |
Digital receiving system for dense environment of aircraft |
September 14, 2004 |
| The capacity of a Mode-S ADS-B surveillance radar system is increased by sectorizing the radar system by the use of a directional array of Mode-S, quarter wavelength, single element, stub antennas. The ensemble of signals from the array of Mode-S antenna elements is processed electronica |
| 6791359 |
Electronic structure for passing signals across voltage differences |
September 14, 2004 |
| An electronic structure for passing signals across voltage differences includes a signal bus segment that includes at least one circuit element. Circuitry connected to the signal bus segment is operatively connected to a voltage source. Signal bus segments and the associated circuitry ca |
| 6790779 |
Anisotropic dry etching technique for deep bulk silicon etching |
September 14, 2004 |
| A method for creating deep features in a Si-containing substrate for use in fabricating MEMS type devices is provided. The method includes first forming a thin Ni hardmask on a surface of a Si-containing substrate. The Ni hardmask is patterned using conventional photolithography and wet |
| 6789727 |
Mail processing apparatus and collection box with a mail article sealer |
September 14, 2004 |
| A mail processing apparatus, includes an enclosure adapted for receiving deposited mail articles, a depository port adapted for passing deposited mail articles into the enclosure, and a sealing apparatus operatively associated with the depository port and adapted to seal deposited mail |
| 6789490 |
Ship constructions for achieving stability at high speed through the use of multiple, low wave-m |
September 14, 2004 |
| A ship designed to achieve high speed through the use of multiple, low wave-making resistance, submerged hullform pods is constructed for stable operation during maneuvers with and without a payload. Movable fins on the submerged hullform pods are constructed and are operable to provide |
| 6788976 |
Movement timing simulator |
September 7, 2004 |
| Movement timing stimulators that aid in the relief of the symptoms of neurological movement disorders are provided. In one embodiment, a movement stimulator has a control unit. A stimulator is coupled to an output of the control unit. The stimulator is adapted to provide stimulation |
| 6787747 |
Fast phase diversity wavefront correction using a neural network |
September 7, 2004 |
| A phase diversity wavefront correction system for use in a multiple aperture optical imaging system forms an in-focus image as a composite, focused image from the multiple apertures of the system and also forms an additional image which is deliberately made out of focus to a known ex |
| 6785610 |
Spatial avoidance method and apparatus |
August 31, 2004 |
| An obstacle avoidance system, apparatus, and method is described suitable for use on autonomously guided or man-in-the-loop guided vehicles such as aircraft, missiles, cars, and other types of vehicles. The system provides guidance instructions in the situation where the vehicle encounte |
| 6784833 |
Personal surveillance system with locating capabilities |
August 31, 2004 |
| A personal surveillance system configured to be worn by an individual includes a communication system configured to record communication files, a locating system configured to determine a location of the personal surveillance system, and a transmitter configured to send the communica |
| 6784620 |
Plasma filter |
August 31, 2004 |
| A low/band/high pass filter includes first and second plasmas, each with a path for the flow of electromagnetic energy at frequencies above the plasma frequency. A path for the flow of electromagnetic energy is coupled to the second port of the first plasma and to a first port of the sec |
| 6783835 |
Elastomeric damping sheets |
August 31, 2004 |
| A bulk modulus elastomeric element is employed in the present invention. The material from which the invention is fabricated is formed as a sheet, which has a plurality of channels that run through, or partially through it. The holes in the sheet are angled such that the remaining materi |
| 6782334 |
Method and system for calibration of time delay integration imaging devices |
August 24, 2004 |
| Methods and systems for calibrating and aligning Time Delay Integration (TDI) Charge Coupled Device (CCD) sensors. A TDI sensor for linear imaging (line sensor) is calibrated by generating a two dimensional image from the line sensor, analyzing the two dimensional image, and calibrating |
| 6782330 |
Satellite signal waveform monitor |
August 24, 2004 |
| The present invention is a system for providing GPS users with a high level of confidence in the integrity and accuracy of received GPS signals. A waveform monitor allows the GPS satellite to verify the integrity of its transmitted signal by detecting its own transmitted waveform. The wa |
| 6782160 |
Optical-signal coupler and related method |
August 24, 2004 |
| An optical coupler includes a housing, and includes first and second optical terminals and a prism disposed in the housing. One terminal is moveable with respect to the other, and the prism maintains an optical alignment between the terminals. Because it includes a prism instead of a |
| 6781697 |
Portable system and method for determining one or more reflectance properties of a surface |
August 24, 2004 |
| A method is provided for determining one or more reflectance properties of a surface using a portable apparatus that includes reflecting a first beam of electromagnetic energy off of a measured surface, the first beam contacting the measured surface at an angle that is near normal to the |
| 6780672 |
Micro eletro-mechanical component and system architecture |
August 24, 2004 |
| Micro electromechanical, MEM, components are created which include at least one integrated circuit die (110p). A cavity in the MEM component modules (300a, 300e) further allows for the flush mounted attachment of component modules when the component modules are stacked to create MEM syst |
| 6779757 |
Preforms for acute structural edges |
August 24, 2004 |
| A preform is joined to converging surfaces of a structure, such as an airfoil, to form a structural edge. The preform has a body having an acute-angle edge at one end and connecting areas extending from the opposing end for connecting the preform to converging planar elements of a wi |
| 6779707 |
Friction stir welding as a rivet replacement technology |
August 24, 2004 |
| The present invention provides an improved method and apparatus for joining aluminum allow panels (eg. 2090-T83 aluminum lithium alloy). The method preliminarily positions two panels and skin panels next to each other so that a stringer panel overlaps a skin panel. A friction stir weld p |
| 6778687 |
Fingerprint matching system with ARG-based prescreener |
August 17, 2004 |
| A prescreen filtering method and algorithm based upon Attributed Relational Graph (ARG) techniques are employed in a node-by-node matching to individually determine a best alignment of the sets of minutia of a pair of search and file fingerprints. First, the directional components of eac |
| 6778621 |
Precision resampling system |
August 17, 2004 |
| A system for changing the sample rate of a digital signal precisely such that frequency coherence is maintained. The system uses coupled direct digital synthesizers to establish the phase of a resampled clock compared to the original clock. The system implements precision resampling that |
| 6778071 |
Adaptive escape routing system |
August 17, 2004 |
| An adaptive escape routing system for use in buildings and building complexes in which a plurality of detectors or detector suites are situated throughout the building or building complex and provide information to a central controller as to the release of toxic, injurious, and/or ag |
| 6777228 |
System, method and apparatus for the rapid detection and analysis of airborne biological agents |
August 17, 2004 |
| A sampling device for detecting airborne particles has two parallel substantially identical intake passages. Each intake passage, in close proximity to the other, and has an inlet, a sampling filter intersecting the passage, means for drawing ambient air through the inlet, and sampling |
| 6776258 |
Acoustic blanket system |
August 17, 2004 |
| An acoustic blanket system for use in attenuating acoustic energy. The acoustic blanket system including an acoustic blanket and apparatus for mounting the acoustic blanket to a structure. The acoustic blanket includes first and second cover materials heat-sealed around at least a po |
| 6775067 |
Method and apparatus for stretching an optical pulse |
August 10, 2004 |
| A method and apparatus for stretching a pulse, shaping a stretched pulse, and modeling a stretched and/or shaped pulse are disclosed. An etalon has a port, a partially reflective surface, and a fully reflective surface. A base pulse is introduced into the etalon, and a plurality of porti |
| 6774539 |
High pressure, high speed actuator |
August 10, 2004 |
| An actuator for applying an actuating force through a total displacement. The actuator includes: an actuator body; n piezo members supported by the body where n is an integer greater than or equal to two, each of the piezo members generating a force and a displacement upon application of |
| 6774337 |
Method for protecting the diaphragm and extending the life of SiC and/or Si MEMS microvalves |
August 10, 2004 |
| A microvalve and a method of forming a diaphragm stop for a microvalve. The microvalve includes a first layer and a diaphragm member to control the flow of fluid through the microvalve. The method comprises the step of forming a contoured shaped recess extending inward from a surface of |
| 6772100 |
Multipath mitigation filter |
August 3, 2004 |
| A technique for estimating the position of an object from sensor measurements in the presence of multipath conditions is disclosed. In one aspect, the technique includes a position estimator comprising a signal filter, a multipath detector, and a multipath bias estimator. The signal |
| 6772019 |
Method and system for multi-parameter choice optimization |
August 3, 2004 |
| A method and system for performing trade-off studies using multi-parameter choice is disclosed. Candidates, each having one or more criteria associated therewith, are entered into the system via an input interface such as a keyboard. In addition, test rationale may be entered and ass |
| 6771220 |
Memory efficient jammer locator for a digital adaptive beamforming receiver |
August 3, 2004 |
| A method and computer program product are disclosed for locating signal jammers in a digital beamforming receiver having an antenna with a plurality of associated antenna orientations. An associated antenna gain value is calculated for a first of a sequence of the plurality of antenna |
| 6769830 |
Connector assembly |
August 3, 2004 |
| A separable connector assembly includes a connecting member having a threaded end, and a hollow housing having a cylindrical wall that contains a body rotatably mounted therein. This body is threadably engageable with the threaded end of the connecting member. A first mechanism releasabl |
| 6768642 |
VME circuit host card with triple mezzanine configuration |
July 27, 2004 |
| A circuit card assembly includes a host card having connector assemblies and a conduction-cooling path. A first and second mezzanine card each having electronic circuitry defining a component field is mounted to the conduction-cooling path of the host card and connected to the connector |
| 6768465 |
Low probability of intercept (LPI) millimeter wave beacon |
July 27, 2004 |
| A millimeter wave beacon includes a millimeter wave transmitter that produces at least one signal and plurality of antennas, coupled to the millimeter wave transmitter, that each emit millimeter wave radiation in response to the at least one signal. In one embodiment, the antennas are |
| 6765220 |
Infrared scene generator using fluorescent conversion material |
July 20, 2004 |
| A compact infrared (IR) scene generator capable of generating multiple-color mid-IR scenes through the use of readily available commercial near-IR lasers and a fluorescent conversion material (FCM). Such a scene generator would be useful to test IR imaging sensors in a controlled lab |
| 6763337 |
Weighted wedge defuzzification for conceptual system design evaluation |
July 13, 2004 |
| A method, and a system applying the method, for an exact and computationally efficient solution for defuzzification uses linear and non-linear weighted wedge approaches. Fuzzy numbers are used to represent parameters in a number of applications, including design dependent parameters |
| 6762866 |
High speed mechanical laser shutter |
July 13, 2004 |
| A fast mechanical shutter for a laser has a reflective flag which either blocks or unblocks the laser output. In the blocking position, the flag reflects the light onto a laser output absorber. The flag is rapidly moved by an electric actuator into which shaped current pulses are forced |
| 6761513 |
Advanced aerospace drill motor |
July 13, 2004 |
| A method of drilling and a drill motor are provided for use with a stationary template attached to a material to be drilled. The drill motor has a frame having a handgrip and surrounding a movable carriage or motor assembly. The motor assembly contains an air-powered motor for rotating a |
| 6761117 |
Tactical reconnaissance and ordnance system |
July 13, 2004 |
| With typical ordnance systems, for example, grenades, a user must decide to explode the ordnance before the actual device is thrown. However, in many situations, it can be useful to be able to throw an ordnance system and make a decision to explode the device after it has landed. The pre |
| 6760220 |
Rugged modular PC 104 chassis with blind mate connector and forced convection cooling capabiliti |
July 6, 2004 |
| A chassis for circuit cards has a housing, a front end, a connector end, and a top cover. The housing has an airflow slot on its underside, and the top cover is open in nature, the combination of which allows the flow of forced convection air from top to bottom (or vice versa) to cool th |
| 6759995 |
Constant beamwidth high gain broadband antenna |
July 6, 2004 |
| The present invention relates to reflective antennas. With previous antennas, the beamwidth of a reflected signal decreases linearly as the frequency of a transmitted signal increases. This is because the beamwidth for a normal antenna is a function of several parameters, including the |
| 6758743 |
Venting system for use with composite structures |
July 6, 2004 |
| The present invention relates to a system for venting interior cores of composite structures. Generally, the venting system includes a mounting assembly and a venting medium. The mounting assembly generally interconnects the venting system to the composite structure generally with re |
