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| Number | Title | Issue Date |
| 7493861 | Tandem shaped charge warhead having a confined forward charge and a light-weight blast shield A tandem shaped charge warhead having a forward charge and a rear charge mounted in tandem along a charge axis. The forward charge has a shaped charge liner with an explosive surrounding it, along with a metallic confinement housing surrounding the explosive and lin... | 02/24/2009 |
| 6960319 | Tungsten alloys for penetrator application and method of making the same Disclosed is a flow-softening tungsten alloy having the general formula: W100-pAiBjCkDe wherein W is tungsten; A is one or more elements selected from the ... | 11/01/2005 |
| 6212365 | Push-to-talk interface circuit for a radio communication system There is disclosed a circuit for selectively enabling communications by providing an output signal voltage of a first level indicative of a first transmission state and a second level corresponding to a second non-transmission state, the circuit having an... | 04/03/2001 |
| 6188720 | Modulation and signaling converter The communication system has a first modem having a digital port for communicating a first data block in a first format between a first transmission channel and the digital port and a second modem having a digital port for communicating a second data bloc... | 02/13/2001 |
| 6161075 | Method for determining the accuracy of measured environmental data parameters A method of estimating expected errors of environmental data parameters based on radiance measurements obtained from visible infra red radiometric satellite sensors (VIIRS) orbiting the earth, comprising the steps of: obtaining N radiance measurements of ... | 12/12/2000 |
| 6137828 | Radio remote interface for modulating/demodulating data in a digital communication system There is disclosed in a digital communications system for communicating between two radios by transceiving a signal comprising a first type control signal, a second type data traffic signal and a third type voice signal, a remote communication interface f... | 10/24/2000 |
| 6133888 | Polarization-agile multi-octave linear array with hemispherical field-of-view An antenna including a plurality of radiating elements disposed in mutually orthogonal pairs arranged in a predetermined pattern to radiate and receive RF signals over multi-octave frequency bands; and divergent lens means to provide stability for the pre... | 10/17/2000 |
| 6134514 | Large-scale network simulation method and apparatus A distributed discrete-event simulation system operable for processing time-stamped events in chronological order for simulating a multinode communications network, the simulation system comprising a plurality of subsystem platforms (SPs) operable for tra... | 10/17/2000 |
| 6111860 | Communication interface system for half duplex digital radios There is disclosed a voice/data protocol for use with half duplex digital radios. The protocol modifies the X.21 HDLC protocol which is widely employed in the transmission of data for digital radios. The X.21 protocol utilizes a control "C" and an indicat... | 08/29/2000 |
| 6078612 | Radio architecture for an advanced digital radio in a digital communication system There is disclosed an improved multi-mode, spread spectrum digital radio comprising: a radio frequency (RF) subsystem for converting spread spectrum digital signals comprising voice and data communications between baseband and RF signal frequencies in res... | 06/20/2000 |
| 6061022 | Azimuth and elevation direction finding system based on hybrid amplitude/phase comparison A method for finding a direction associated with a radiated electromagnetic wave, the method including the steps of: detecting the radiated electromagnetic wave; measuring at least one gain difference and at least one phase difference associated with the ... | 05/09/2000 |
| 6052423 | Synchronization and tracking in a digital communication system There is disclosed a bit sync search and frame sync search system operative with a digital data signal as transmitted by a digital radio transmitter. The bit search is implemented by detecting a predetermined phasing signal which is incorporated in the di... | 04/18/2000 |
| 6052406 | Frequency hopping synchronization and tracking in a digital communication system There is disclosed an improved frequency hopping synchronization and tracking system for bit syncing and frame syncing a digital data signal as transmitted by a radio transmitter. A detection means responsive to incoming data samples representative of the... | 04/18/2000 |
| 4933980 | Sound effects generator A sound effects generator including a pair of digitally programmable sound generators, each of which is independently and dynamically controlled by a programmed digital signal processor through a control logic interface. Each programmable sound generator ... | 06/12/1990 |
| 4888546 | Device for measuring seam resistance A portable seam resistance measuring apparatus having a housing with one or more flat exterior surfaces, a number of apertures, an indicator at the midpoint of the flat surface, two or more current injection probes, two or more voltage injection probes, a... | 12/19/1989 |
| 4878432 | Multistage kinetic energy penetrator A hypervelocity kinetic energy projectile has multiple penetrator stages gitudinally stacked one onto the other which separate and fly independently of one another during the projectile's flight. Connecting rods passing through and interconnecting each p... | 11/07/1989 |
| 4867957 | Process for making polyphosphazenes The invention is a continuous polymerization process for producing high molecular weight linear poly(dichlorophosphazene) polymers in dilute solution. Substantially pure cyclic oligomers represented by the formula (NPCl2)n are polyme... | 09/19/1989 |
| 4534383 | Fluidic set point pressure sensor A mechanically offset fluid amplifier for converting the absolute pressure f a pressurized fluid to a differential pressure indicating the pressure of the pressurized fluid relative to a predetermined set point pressure. The device includes two outlets sep... | 08/13/1985 |
| 4534205 | Method of shock testing aluminum alloy welded joints Aluminum alloy armor weld joints are ballistic shock tested by first sepaely determining the ballistic impact capability of the components to be joined by the weldment by firing a plate proofing projectile at 0° obliquity at each of said components at d... | 08/13/1985 |
| 4535460 | Method and apparatus to filter pulsed RF signals A method and apparatus for receiving and detecting pulsed RF signals within first frequency band. Incoming pulsed RF signals are supplied to a linear amplifier which amplifies any of the signals within a broader second frequency band. The pulsed RF output... | 08/13/1985 |
| 4524386 | Thermal target display system A thermal target display system and method is disclosed by which thermal radiation patterns simulating the thermal "signature" of selected "real-scene" objects such as vehicles, buidings, and personnel, can be readily generated. The system utilizes a plur... | 06/18/1985 |
| 4524294 | Ferroelectric photomechanical actuators A method for deforming materials which are ferroelectric, have remanent polarization, and which exhibit a length-dependent photoelectric effect. One type of material is photovoltaic, piezoelectric, ferroelectric ceramics. Illuminating such materials cause... | 06/18/1985 |
| 4523611 | Fluidic absolute-to-differential pressure converter A method and apparatus for converting the absolute pressure of a pressuri fluid to a differential pressure indicating the fluid pressure relative to a reference pressure. The pressurized fluid is directed asymmetrically into a laminar proportional amplif... | 06/18/1985 |
| 4521781 | Phase scanned microstrip array antenna A microstrip array antenna, including spaced radiator elements supplied w microwave power and separated from an underlying ground reference plane by a layer of dielectric material, in which the antenna beam is phase scanned by periodically closing switch... | 06/04/1985 |
| 4517862 | Wheel alignment tool This multi purpose hand tool comprises a pair of double ended wrenches each ith an open-ended wrench at one end and a box wrench at the other end. The shanks of each wrench are preferably of circular cross section and each has a different sliding tool ther... | 05/21/1985 |
| 4515043 | Carburetor adjustment tool A hand held and operated tool for quickly and accurately adjusting the idle ixture adjustments of multiple barrelled carburetors. The tool has a pair of screwdrivers with flexible shanks which can be applied to the idle mixture adjustment screws and turned... | 05/07/1985 |
| 4512371 | Photofluidic interface A photofluidic interface that transduces optical control signals into fluid ontrol pressures is provided in which an AC modulated light source is utilized to transmit control signals to a photo acoustic cell that absorbs the light energy and converts it to... | 04/23/1985 |
| 4513064 | Package for rugged electronics A substrate which serves as an element for building an electronic module for ordnance applications comprising a body portion, for receiving electronic components, and a plurality of tab means extending therefrom for interlocking with complementary tab mea... | 04/23/1985 |
| 4506553 | Apparatus for measuring small values of air flow A gas flow rotor cyclically connects a microphone to a dynamic flow press and then a reference static flow pressure. The microphone converts the pressures to a resultant alternating differential signal providing a first input to a phase-locked amplifier.... | 03/26/1985 |
| 4506210 | Method for identifying cable conductors using two signals at different frequencies A system for identifying a selected conductor at the other end of a multinductor cable. A signal is imposed on the selected conductor at one end. At the other end of the cable, a probe is capacitively coupled successively to the several conductors. The s... | 03/19/1985 |
| 4503774 | Self-regulating air driven power supply A plurality of control jets is provided in the nozzle-centerbody of an air riven resonator to deflect portions of the incoming air flow away from the resonator. The control jets operate so as to deflect major portions of the air flow during high velocity f... | 03/12/1985 |
| 4503532 | Multipoint fiber optic junction terminal In an intercom system, electrical noise interference is alleviated by interconnecting the tranceivers and receivers with the control sets via fibre optic lines. Audio signals are applied to a multiplexer which drives an optical modulator. The output of th... | 03/05/1985 |
| 4487067 | High speed spin test device A rotatably shaft is directly supported by at least three wheels, including drive wheel. The circumferential edge of each of the wheels frictionally engages the circumferential edge of the shaft. The shaft is in frictional contact with each of the wheels,... | 12/11/1984 |
| 4485362 | Variable microwave stripline power divider A variable microwave stripline power divider, in which the power seen at h of two outputs can be varied over a wide range without appreciably changing the power seen at the other output. In one embodiment, this is accomplished mechanically by shorting po... | 11/27/1984 |
| 4483076 | Ground contact area measurement device Measurement of the area and shape of contact between a vehicle's wheels or racks and the surface over which it moves is automated by having the vehicle drive over an array of switches connected in a matrix including X and Y conductors. The matrix is system... | 11/20/1984 |
| 4484136 | Test set for transient protection devices A method and device for testing transient protection circuits comprising itive and negative high voltage protection circuits and high voltage fast rise time protection circuits. A bipolar test signal with alternate positive and negative high voltage puls... | 11/20/1984 |
| 4478080 | Dewpoint measurement system for near saturation conditions A dewpoint sensor has an inlet connected to a gas flow switch that first its air at 100 percent saturation at ambient temperature for determining a reference dewpoint temperature. The switch then connects the sensor to ambient air for determining the amb... | 10/23/1984 |
| 4450364 | Lighter than air wind energy conversion system utilizing a rotating envelope A lighter-than-air (LTA) wind energy conversion system (WECS) wherein the LTA envelope carries a main rotor and electrical generator to take advantage of high wind speeds available at high altitudes. The LTA envelope is adapted to rotate with the main rot... | 05/22/1984 |
| 4440506 | Laser power meter A laser power meter is disclosed which includes a housing, an optical win in the housing through which the laser radiation is transmitted, and an optic in the housing in the path of the laser radiation. The optic absorbs a portion of the incident laser r... | 04/03/1984 |
| 4438439 | Self-survey means A method and apparatus for a passive station to locate itself relative to a tationary or moving transmitting station transmitting a narrow pulsed scanning beam by utilizing reception of pulses directly from the transmitting station and reception of reflect... | 03/20/1984 |
