U.S. Government as represented by the Secretary of the Army Patent applications |
Patent application number | Title | Published |
20160068393 | Process for the Generation of Chlorine Dioxide - The present invention in one embodiment provides a process of generating chlorine dioxide by reacting formamidinesulfinic acid (FSA) and sodium chlorite in an aqueous solution. | 03-10-2016 |
20150301254 | ELECTROMAGNETIC COMPOSITE-BASED REFLECTING TERAHERTZ WAVEPLATE - A reflection-mode waveplate for operation in the terahertz region by shifting the phase between two perpendicular polarization components of the light wave, comprising a ground plane; an array of polygonal unit cells; the polygonal unit cells comprising a polymer positioned between the ground plane and the exterior of the array of polygonal patches. | 10-22-2015 |
20150276997 | BROADBAND OPTICS FOR MANIPULATING LIGHT BEAMS AND IMAGES - Pointing and positioning system of light beams and images comprising a plurality of cycloidal diffractive waveplates, each waveplate capable of deviating a generally broadband light beam over a predetermined angle. The lateral translation and deviation angles of the light beams are controlled by controlling the relative distance, rotational position, and the diffraction efficiency of at least one in the plurality of said waveplates. | 10-01-2015 |
20150224957 | PERSONNEL RESTRAINT SEAT BELT - A personnel restraint seat belt having an elongated flexible web with a front surface, a rear surface, and two side edges. A distinguishing feature, such as a raised bump, color strip, or edge cut outs are provided adjacent at least one of the side edges of the web. The distinguishing feature allows for rapid identification of the restraint seat belt during emergency situations. | 08-13-2015 |
20150079484 | ELECTROLYTE ADDITIVES IN SUPPORT OF FIVE VOLT LITHIUM ION CHEMISTRY - The present disclosure relates to additives for electrolytes and preparation of aluminum-based, silicon-based, and bismuth-based additive compounds that can be used as additives or solutes in electrolytes and test results in various electrochemical devices. The inclusion of these aluminum, silicon, and bismuth compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise unsuitable with current electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for Li-ion chemistries. The application of these compounds goes beyond Li-ion battery technology and covers any electrochemical device that employs electrolytes for the benefit of high energy density resultant from high operating voltages. | 03-19-2015 |
20150079483 | OXIRANE-BASED ADDITIVES IN SUPPORT OF FIVE VOLT LITHIUM ION CHEMISTRY - The present disclosure relates to several families of commercially available oxirane compounds that can be used as electrolyte co-solvents, solutes, or additives in non-aqueous electrolyte and their test results in various electrochemical devices. The presence of these compounds can enable rechargeable chemistries at high voltages. These compounds were chosen for their beneficial effect on the interphasial chemistries that occur at high potentials on the classes of 5.0V cathodes used in experimental Li-ion systems. | 03-19-2015 |
20150061926 | TARGET DETECTION UTILIZING IMAGE ARRAY COMPARISON - A method and system for forming an image comprising at least one processor for performing the following: initializing an N by P image array I | 03-05-2015 |
20140285893 | BROADBAND OPTICS FOR MANIPULATING LIGHT BEAMS AND IMAGES - The objective of the present invention is providing optical systems for controlling with propagation of light beams in lateral and angular space, and through optical apertures. Said light beams include laser beams as well as beams with wide spectrum of wavelengths and large divergence angles. Said optical systems are based on combination of diffractive waveplates with diffractive properties that can be controlled with the aid of external stimuli such as electrical fields, temperature, optical beams and mechanical means. | 09-25-2014 |
20140252666 | METHOD OF FABRICATING A LIQUID CRYSTAL POLYMER FILM - A method of fabricating a liquid crystal polymer film includes providing a support substrate having a surface having a shape arranged to define a form of a liquid crystal polymer film to be fabricated; applying a layer of a photoaligning material over the surface of the support substrate, the photoaligning material having an absorption band; exposing the layer of photoaligning material to a light having a linear polarization and the light comprising a wavelength within the absorption band to convert the layer of photoaligning material into a layer of photoaligned material; applying a layer of a polymerizable liquid crystal over the layer of photoaligned material; performing photopolymerization of the layer of polymerizable liquid crystal to form a liquid crystal polymer film; applying a solvent to the layer of photoaligned material, the solvent formulated to dissolve the photoaligned material to thereby release the liquid crystal polymer film from the support substrate; and removing the liquid crystal polymer film from the support substrate. | 09-11-2014 |
20140248540 | PROCESS OF MAKING NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY USING THE SAME - A process of electroless plating a tin or tin-alloy active material onto a metal substrate for the negative electrode of a rechargeable lithium battery comprising steps of (1) immersing the metal substrate in an aqueous plating solution containing metal ions to be plated, (2) plating tin or tin-alloy active material onto the metal substrate by contacting the metal substrate with a reducing metal by swiping one on the other, and (3) removing the plated metal substrate from the plating bath and rinsing with deionized water. A rechargeable lithium battery using tin or tin-alloy as the anode active material. | 09-04-2014 |
20140211145 | CYCLOIDAL DIFFRACTIVE WAVEPLATE AND METHOD OF MANUFACTURE - A cycloidal diffractive waveplate ( | 07-31-2014 |
20140180027 | Estimation of Human Core Temperature based on Heart Rate System and Method - The invention in at least one embodiment includes a method for determining the core body temperature of a person by setting an initial core body temperature with a processor; receiving a heart rate of the person with the processor; calculating a predicted core body temperature with the processor using an extended Kalman filter based on the heart rate and the initial core body temperature; and providing the predicted core body temperature. In another embodiment, a system for performing the method. | 06-26-2014 |
20140092373 | FABRICATION OF HIGH EFFICIENCY, HIGH QUALITY, LARGE AREA DIFFRACTIVE WAVEPLATES AND ARRAYS - An apparatus and method is presented for fabricating high quality one- or two dimensional diffractive waveplates and their arrays that exhibit high diffraction efficiency over large area and being capable of inexpensive large volume production. Employed is a generally non-holographic and aperiodic polarization converter for converting the polarization of a coherent input light beam that may be of a visible wavelength into a pattern of continuous spatial modulation at the output of said polarization converter. A photoresponsive material characterized by an anisotropy axis that may be formed or aligned according to polarization of said light beam is exposed to said polarization modulation pattern and may be coated subsequently with an anisotropic material overlayer. | 04-03-2014 |
20140077268 | Distributed Heating Transistor Devices Providing Reduced Self-Heating - According to various embodiments, a distributed heating transistor includes: a plurality of active regions where transistor action occurs including a heat source; and at least one inactive region where transistor action does not occur and no heat source is present, wherein adjacent active regions are separated by the at least one inactive region. The distributed heating transistor may be configured as field effect transistors (FETs), and bipolar junction transistors (BJTs). Methods for forming the distributed heating transistors are also provided. | 03-20-2014 |
20140009324 | AUTOFOCUS-BASED COMPENSATION (ABC) SYSTEM AND METHOD FOR A HOVERING GROUND MOVING TARGET INDICATION (GMTI) SENSOR - Embodiments of the present invention generally relate to motion compensation, and in particular to an autofocus-based compensation (ABC) systems and methods for a ground moving target indication platform. According to one embodiment, a method for autofocus based compensation of range data acquired from an object in motion is provided. The method may include: receiving range data; steering at least one receive beam of the range data in a desired direction; transforming the range data into the range domain; determining the width of a main clutter lobe; excluding data that is not part of the main lobe clutter response; transforming the main-lobe clutter response into the range domain; calculating a phase correction term; and applying the phase correction to the original range data. | 01-09-2014 |
20130335951 | LIGHTED EGRESS APPARATUS - A lighted egress apparatus includes a unitary body comprising a cavity therewithin, the cavity comprising a power supply supplying electricity and circuitry coupled to the power supply and conducting the electricity; a fixed blade partially fixed within the cavity and comprising a cutting blade, wherein the cutting blade is exposed from the unitary body and positioned at a constant cutting angle; a switch partially fixed within the cavity and coupled to the circuitry, wherein activation of the switch completes the circuitry and allows the circuitry to conduct the electricity; and an illumination device partially fixed within the cavity and coupled to the circuitry, wherein the illumination device illuminates as the circuitry conducts the electricity to the illumination device and positioned to direct illumination in front of the cutting blade. | 12-19-2013 |
20130328743 | COAXIAL HELICAL ANTENNA - A coaxial helical antenna for transmitting or receiving information through electromagnetic waves includes a first helical antenna comprising a first helix comprising a first diameter and a center cavity; a second helical antenna comprising a second helix comprising a second diameter, wherein the second diameter is smaller than the first diameter, and wherein the second helical antenna is seated within the center cavity of the first helical antenna; a shaped ground plate coupled to the first helical antenna and the second helical antenna; and two microstrip impedance transformers coupled to the first helical antenna, the second helical antenna, and the shaped ground plate. | 12-12-2013 |
20130310500 | PROCESS ENHANCEMENT VIA STIMULI RESPONSIVE PARTICLE SURFACES - Methods for enhancing the processing of a polymer composite are provided herein. in some embodiments, a method for enhancing the processing of a polymer composite may include masking a at least one functional group on a surface of a particle by using a at least one protective group; mixing the particles into a polymer to form a composite; processing the composite; and applying a at least one stimulus to the composite during the processing of the composite or after processing of the composite is complete in order to remove the at least one protective group from the functional group. | 11-21-2013 |
20130309572 | DUAL-LAYER STRUCTURED CATHOD AND ELECTROCHEMICAL CELL - The present invention relates to dual-layered structured sulfur cathodes comprising (a) an electroactive layer and (b) a non-electroactive conductive layer, wherein the non-electroactive conductive layer adsorbs soluble polysulfides and provides reaction sites for the reduction of polysulfides. The present invention also relates to method of making dual-layered structured sulfur cathodes and electrochemical cells. | 11-21-2013 |
20130292683 | Semiconductor Heterobarrier Electron Device And Method of Making - An electronic device comprising a substrate; a pair of stacks of polar semiconductor materials which create a charge by spontaneous and/or piezoelectric polarization; one of the pair of stacks having a spontaneous and/or piezoelectric polarity which is in a direction opposite to the other of the pair of stacks; whereby due to the opposing polarities, the polarization is balanced. A method of substantially eliminating the bias required to offset polarization charges in an electronic device having a heterobarrier comprising providing a substrate; growing at least one pair of stacks of semiconductor materials; one of the pair of stacks having a spontaneous and/or piezoelectric polarity which is opposite to the other of the pair of stacks; whereby due to the opposing polarities, the polarization is balanced to substantially eliminate the need for a voltage bias. | 11-07-2013 |
20130242301 | Methods and Apparatuses for Contact-Free Holographic Imaging of Aerosol Particles - Methods and apparatuses provide holographic contact-free imaging of aerosol particles in an efficient manner. One apparatus for holographic imaging of an aerosol particle may include: a delivery device configured to deliver the particle into a region; a light source for outputting a first beam of light and a second beam of light, wherein the first beam travels into the region producing a first light wave which is un-scattered by the particle and a second light wave that is scattered by the particle, and the second beam does not travel into the region; a beam splitter for combining the second beam with the scattered light of the first beam into combined interference light; an image sensor for sensing an interference pattern created by the combined interference light; and an image processor configured to generate an image of the aerosol particle based on the sensed interference pattern. | 09-19-2013 |
20130236817 | FABRICATION OF HIGH EFFICIENCY, HIGH QUALITY, LARGE AREA DIFFRACTIVE WAVEPLATES AND ARRAYS - The objective of the present invention is providing a method for fabricating high quality diffractive waveplates and their arrays that exhibit high diffraction efficiency over large area, the method being capable of inexpensive large volume production. The method uses a polarization converter for converting the polarization of generally non-monochromatic and partially coherent input light beam into a pattern of periodic spatial modulation at the output of said polarization converter. A substrate carrying a photoalignment layer is exposed to said polarization modulation pattern and is coated subsequently with a liquid crystalline material. The high quality diffractive waveplates of the present invention are obtained when the exposure time of said photoalignment layer exceeds by generally an order of magnitude the time period that would be sufficient for producing homogeneous orientation of liquid crystalline materials brought in contact with said photoalignment layer. Compared to holographic techniques, the method is robust with respect to mechanical noises, ambient conditions, and allows inexpensive production via printing while also allowing to double the spatial frequency of optical axis modulation of diffractive waveplates. | 09-12-2013 |
20130236115 | Method and System for Recovery of Missing Spectral Information in Wideband Signal - A system of recovering information wide band signal comprising a receiver(s) for receiving data signal responses from a target area; the received data signal responses having information missing at a plurality of frequencies; at least one processor for recovery of data from the data signal responses operatively connected to the receiver(s); a first memory comprising time-shifted responses based upon the wide band signal response, a second memory comprising a plurality of spectrally filtered time-shifted responses; whereby the first and second memories operate to provide data to the at least one processor compensate for the information missing at the plurality of frequencies. Also, a method of the recovery of missing frequency bands comprising receiving data signal responses from a target area using a first dictionary comprising time-shifted responses based upon spectra containing the at least one predetermined spectrum, and a second dictionary comprising a plurality of spectrally filtered time-shifted responses. | 09-12-2013 |
20130213748 | Trailer Braking System For Use With A Fifth Wheel/Gooseneck Hitch Having A Surge Brake Actuator - Methods and apparatuses for a trailer braking system for use with a fifth wheel hitch, a gooseneck hitch, or the like. A braking system for a trailer pulled by a tow vehicle includes an arm member extending downward from and pivotally connected to an upper portion of the trailer and a surge brake actuator connected to the upper portion of the trailer that is configured to control braking of wheels of the trailer. When the tow vehicle decelerates, inertial force caused by forward momentum of the trailer pivots the arm member such that force is exerted on the surge brake actuator to actuate the brakes of the trailer. | 08-22-2013 |
20130207754 | MAGNETIC FLUX SWITCH - A magnetic flux switch having a substrate and an elongated rod having a first end attached to the substrate and a magnetic material attached to the second end. An electrostatic comb drive pivots the rod between a first and second pivotal position in dependence upon the input signal for the comb drive. In its first position the magnetic material is positioned closely adjacent a magnetic flux sensor on the substrate so that flux flow through the rod flows through the sensor which then generates an output signal. Conversely, with the rod in its second position, the magnetic material is spaced from the sensor so that flux does not flow through the magnetic flux sensor. | 08-15-2013 |
20130206029 | EXTENDING BOOM FOR STABILIZING PROJECTILES LAUNCHED FROM AN APPARATUS - A projectile for launch from an apparatus is disclosed herein. In some embodiments, the projectile includes a body; a boom having a first end extendable from the body; and an armature coupled to the first end of the boom, wherein the armature is configured to be moveable along and launchable from the apparatus and the armature is configured to be separable from the first end of the extended boom after launch from the apparatus. | 08-15-2013 |
20130172570 | METHOD OF MAKING BENZAZOLES - This present invention provides a method of making benzazoles comprising a process of making aryl or alkyl benzazoles from corresponding aryl acid chlorides or alkyl acid chlorides without applying hazard condensing agent. The benzazole compounds described in this invention have following formula I: | 07-04-2013 |
20130137001 | NON-AQUEOUS ELECTROLYTE SOLUTIONS AND LITHIUM/OXYGEN BATTERIES USING THE SAME - A lithium/oxygen battery includes a lithium anode, an air cathode, and a non-aqueous electrolyte soaked in a microporous separator membrane, wherein non-aqueous electrolyte comprises a lithium salt with a general molecular formula of LiBF | 05-30-2013 |
20130115529 | ELECTROLYTE FOR METAL/AIR BATTERY - A series of fluorinated compounds are disclosed that can be used as the co-solvent of non-aqueous electrolytes for metal/air battery cells. The inclusion of these compounds in electrolyte systems significantly increases the power capability and energy capacity of metal/air batteries by promoting dissolution and increasing solubility of oxygen in the non-aqueous electrolytes. | 05-09-2013 |
20130113499 | METHOD AND APPARATUS FOR DETERMINING PLANAR IMPEDANCE TOMOGRAPHY - A method and apparatus for determining planar impedance tomography of a sample comprising a measurement head unit comprising an impedance sensor; a three-axis actuator assembly, coupled to the measurement head unit, for positioning the impedance sensor relative to a sample; a controller, coupled to the three-axis actuator assembly, for controlling the three-axis actuator assembly to position the impedance sensor at a plurality of locations relative to the sample; and an impedance analyzer, coupled to the impedance sensor, for determining an impedance value at each location in the plurality of locations. | 05-09-2013 |
20130112140 | APPARATUS FOR GROWTH OF DILUTE-NITRIDE MATERIALS USING AN ISOTOPE FOR ENHANCING THE SENSITIVITY OF RESONANT NUCLEAR REACTION ANALYSIS - In certain desirable embodiments, the present invention relates to the use of | 05-09-2013 |
20130093290 | Stylo-Epitaxial Piezoelectric and Ferroelectric Devices and Method of Manufacturing - A ferroelectric device comprising a substrate;
| 04-18-2013 |
20130093288 | THERMALLY OXIDIZED SEED LAYERS FOR THE PRODUCTION OF TEXTURED ELECTRODES AND PZT DEVICES AND METHOD OF MAKING - A method for forming an electrical device having a {100}-textured platinum electrode comprising: depositing a textured metal thin film onto a substrate; thermally oxidizing the metal thin film by annealing to convert it to a rocksalt structure oxide with a {100}-texture; depositing a platinum film layer; depositing a ferroelectric film. An electrical device comprising a substrate; a textured layer formed on the substrate comprising metal oxide having a rocksalt structure; a first electrode film layer having a crystallographic texture acting as a template; and at least one ferroelectric material layer exhibiting spontaneous polarization epitaxially deposited on the first electrode film layer whereby the rocksalt structure of the textured layer facilitates the growth of the first electrode film layer with a {100} orientation which forms a template for the epitaxial deposition of the ferroelectric layer such that the ferroelectric layer is formed with an {001} orientation. | 04-18-2013 |
20130077888 | System and Method for Image Enhancement - A method and system for forming an improved image from a series of frames comprising inputting a pixel value array for each image frame; summing the pixel values in each frame to obtain the frame intensity for each frame; multiplying the pixels in pixel value array by the frame intensity; summing the frame intensity multiplied pixel value arrays together and dividing by the number of frames to obtain an average of the frame intensity multiplied pixel value arrays; then, using the inputted pixel value arrays, creating an array of average pixel values; multiplying the array of average pixel values by the average frame intensity for all of the inputted frames; and subtracting the array of average pixel values multiplied by average frame intensity from the average of the frame intensity multiplied pixel value arrays to provide an array of modified pixel values to form an improved image. | 03-28-2013 |
20130022752 | METHODS FOR TREATING A SURFACE OF A SUBSTRATE BY ATMOSPHERIC PLASMA PROCESSING - Methods for treating a surface of a substrate are disclosed herein. In some embodiments, a method includes forming reactive sites on the surface of the substrate by exposing the surface of the substrate to a first atmospheric plasma formed from a first process gas comprising an inert gas; and functionalizing the reactive sites by exposing the surface of the substrate to a second atmospheric plasma formed from a second process gas comprising the inert gas and water vapor (H | 01-24-2013 |
20130011737 | PROCESS OF MAKING NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY USING THE SAME - A process of electroless plating a tin or tin-alloy active material onto a metal substrate for the negative electrode of a rechargeable lithium battery comprising steps of (1) immersing the metal substrate in an aqueous plating solution containing metal ions to be plated, (2) plating tin or tin-alloy active material onto the metal substrate by contacting the metal substrate with a reducing metal by swiping one on the other, and (3) removing the plated metal substrate from the plating bath and rinsing with deionized water. A rechargeable lithium battery using tin or tin-alloy as the anode active material. | 01-10-2013 |
20130000506 | SABOT - A sabot petal having an axis parallel to or coinciding with the launch axis. The sabot petal is formed from a plurality of stacked sheets of composite material consisting of a fiber reinforcement and a polymer resin matrix. Each composite sheet is in a plane rotationally offset from the meridional plane which is defined by the launch axis and radial axis of the sabot petal's cylindrical coordinate system. | 01-03-2013 |
20120330178 | METHOD AND APPARATUS FOR MULTIMODAL MOBILE SCREENING TO QUANTITATIVELY DETECT BRAIN FUNCTION IMPAIRMENT - A method and apparatus including a mobile device for administering and quantitatively determining a Risk Index that a user has suffered an impairment of brain function. | 12-27-2012 |
20120327287 | METHOD AND SYSTEM FOR PRODUCING IMAGE FRAMES USING QUANTUM PROPERTIES - A system and method for generating a series of frames of a subject comprising measuring light reflected from the subject into at least one first receiver at first points in time; receiving spatial information relating to the light source illumination independent of interaction with the subject at second points in time into at least one second receiver, at least some of second points occurring before or after the first points in time; transmitting a measured value from the at least one first receiver to a processor; transmitting the spatial information relating to the light source illumination from a second receiver to a processor; correlating the measured values from the at least one first receiver at the first points in time with the spatial information derived from the at least one second receiver at the corresponding second points in time; and creating frames of a subject. | 12-27-2012 |
20120276445 | PURE FORMS OF LITHIUM BORATE SALTS AND THE PROCESS PRODUCING SUCH FORMS - An electrolytic solution comprising a purified lithium borate salt that when used in lithium ion battery, delivers superior performances that include negligible irreversible capacity upon cell formation, low impedance on both cathode and anode, and excellent stability when operated at high temperatures. | 11-01-2012 |
20120266770 | APPARATUS AND METHOD FOR SUSPENSION WICKING OF NANOPARTICLES INTO MICROCHANNELS - A method of forming a device on a substrate comprising creating a depository and at least one attached capillary; the depository being of millimeter scale; providing a liquid containing particles in the range 1 nanometer to 1 millimeter; depositing into the depository the liquid containing particles which flows into at least one capillary by capillary action; evaporating the liquid such that the particles form an agglomerate beginning at the end of the at least one capillary with a substantially uniform distribution of the particles within the agglomerate; which is used to form a device. A microelectronic integrated circuit device comprising a substrate; a depository coupled to said substrate, the depository being formed by at least one wall adjacent to the substrate; at least one capillary channel coupled to at least one depository that is formed by walls adapted to be filled with a liquid (by capillary action) comprising nanoparticles. | 10-25-2012 |
20120262965 | SINGLE-WALL CARBON NANOTUBE DIODES - Methods and devices relating to diodes including single-wall carbon nanotubes (SWCNT) are disclosed according to embodiments of the present invention. According to one embodiment, a diode may include one or more SWCNTs. The SWCNTs may be grouped together in multiple bundles with the SWCNTs being generally aligned parallel to each other in the bundles. | 10-18-2012 |
20120259902 | DETERMINING LYAPUNOV EXPONENTS - Systems and methods for calculating the Lyapunov exponent of a chaotic system are described. In one particular embodiment, a Lyapunov exponent calculating method includes obtaining a value indicative of a condition of a chaotic system and assigning the value to first and second precision levels, the second precision level having a higher level of precision than the first precision level. The method also includes iterating the chaotic system over time and comparing the value at the first precision level with the value at the second precision level. From the comparison of values at the first and second precision levels, the method calculates the Lyapunov exponent for the chaotic system. | 10-11-2012 |
20120259808 | PREDICTING THE OUTCOME OF A CHAOTIC SYSTEM USING LYAPUNOV EXPONENTS - Systems and methods for predicting the outcome of chaotic systems are described. An example of a prediction system disclosed herein includes, in general, functional elements to vary the initial conditions of a chaotic system and calculate a plurality of possible trajectories for the chaotic system. The prediction system also includes calculating a Lyapunov exponent for each of the plurality of possible trajectories and selecting the trajectory with the smallest Lyapunov exponent as the most likely trajectory to occur. | 10-11-2012 |
20120250748 | APPARATUS AND METHOD FOR SAMPLING AND RECONSTRUCTION OF WIDE BANDWIDTH SIGNALS BELOW NYQUIST RATE - A method and system of reconstructing data signals from one of incomplete measurements comprising a receiver for receiving data signals, an ADC system operatively connected to the receiver that digitizes the received data signal at a slower rate than the Nyquist rate to obtain sparse measurements; first and second dictionaries comprising a plurality of time shifted responses recovered from the data signal; the first dictionary comprising time shifted versions of the previously observed data signals which are sampled at or above the Nyquist minimum sample rate; the second dictionary comprising time shifted versions are sampled below the Nyquist minimum, and at least one processor for reconstruction of the waveform signals by transforming the sub-Nyquist digitized output using the first and second dictionaries to produce the data signal. | 10-04-2012 |
20120225359 | Electrolytes in Support of 5 V Li ion Chemistry - This invention described the preparation of a series of compounds selected from the group comprising tris(1,1,1,3,3,3-hexafluoro-iso-propyl)phosphate, tris(perfluoroethyl)phosphate, tris(perfluoro-iso-propyl)phosphate, bis(1,1,1-trifluoroethyl)fluorophosphate, tris(1,1,1-trifluoroethyl)phosphate, hexakis(1,1,1-trifluoroethoxy)phosphazene, tris(1,1,1-trifluoroethoxy)trifluorophosphazene, hexakis(perfluoro-t-butyl)phosphazene and tris(perfluoro-t-butyl)phosphate. These compounds may be used as co-solvents, solutes or additives in non-aqueous electrolytes in various electrochemical devices. The inclusion of these compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise impossible with state-of-the-art electrolyte technologies. These compounds are chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for new Li ion chemistries. These compounds may be used in Li ion battery technology and in any electrochemical device that employs non-aqueous electrolytes for the benefit of high energy density resultant from high operating voltages. | 09-06-2012 |
20120212712 | METHOD FOR DISPLAYING IMAGES AND/OR OTHER INFORMATION ON AIRCRAFT BLADES - A method for displaying information via a light source on rotating helicopter blades of an aircraft such as a helicopter is provided. The light source may be a laser light source and the light therefrom may be directed onto the aircraft blade by one or more motion controlled mirrors and a computer controller. A sensor is capable of determining the position of helicopter blades during rotation, such that light may be projected upon only the moving blade at precisely timed intervals, so as to form perceivable graphics and/or messages thereon. In addition, the method may be utilized for displaying graphics and/or messages on rotating propellers of fixed wing aircraft. | 08-23-2012 |
20120208067 | High Voltage Lithium Ion Positive Electrode Material with Improved Cycle Life - A lithiated metal phosphate material substituted by divalent atoms at the M2 site and trivalent atoms, a portion of which are present at both the M2 and the M1 sites. The substituted material has the general formula of Li | 08-16-2012 |
20120206293 | METHOD AND SYSTEM FOR FORMING IMAGES BY COMPARING SUBSETS OF IMAGE DATA - A system and method for generating enhanced images of a target area using projection data obtained using an electromagnetic radiation source, the method comprising forming an initial aperture of data points containing positional information of the transmitter and receiver of the electromagnetic radiation; and an associated data record; randomly removing data points from the initial aperture to form subapertures with randomly missing data points; creating a subset of data points from each of the plurality of subapertures; the subsets containing data points containing image data for portions of the target area which are the same or overlapping; comparing the subsets of data points to determine variations in the data points indicative of transient data; based upon the comparison between overlapping subsets of image data, determining whether the subsets of data points comprise image data relating to physical objects or noise. | 08-16-2012 |
20120206134 | MEMS OSCILLATING MAGNETIC SENSOR AND METHOD OF MAKING - A microelectromechanical system (MEMS) device for sensing a magnetic field comprising: a base; a cantilever attached to the base structure at a first end and movable at a second end, the second end oscillating at a predetermined frequency upon application of a current; a magnetic sensor attached to the movable second end; at least one flux concentrator mounted on the base adapted to transfer magnetic flux to the sensor; whereby when the current is applied, the oscillation of the cantilever causes the sensor to oscillate between the lines of flux transferred from the at least one flux concentrator resulting in the shift of the frequency of the sensed magnetic field to the predetermined frequency. The invention further comprises a method of making the MEMS device. | 08-16-2012 |
20120182173 | SYSTEM AND METHOD FOR MOVING TARGET DETECTION - A system and method of detecting moving targets comprises transmitting electromagnetic waves rays from a plurality of transmitters at sequential; receiving reflected waves into a plurality of receivers after each transmission; the compilation of the reflected waves from the plurality of receivers for each transmission representing a data frame; forming a signal that monitors changes between the two sets of frames; at least one processor operating to process and compare frames; forming a difference image using a back-projection algorithm; scanning the difference image using a constant false alarm rate (CFAR) window; the CFAR window scanning the entire difference image and identifying a list of points of interest and eliminating the sidelobe artifacts present in the difference image thereby creating CFAR images; processing the CFAR images using morphological processing to create a morphological image; determining the number of clusters present in the morphological image; using K-means clustering to indicate the centroid of each cluster; and tracking using a Kalman filter. The system comprises a plurality of M transmitters, a plurality of receivers, and at least one memory, the transmitters operating in sequence to transmit electromagnetic waves rays sequentially; the receivers receiving reflected waves after each transmission; the compilation of the reflected waves from the plurality of receivers for each transmission representing a data frame; at least one processor operating to perform the method. | 07-19-2012 |
20120182171 | CHANGE DETECTION METHOD AND SYSTEM FOR USE IN DETECTING MOVING TARGETS BEHIND WALLS, BARRIERS OR OTHERWISE VISUALLY OBSCURED - A system and method for locating a moving target behind a wall or barrier comprising: providing a plurality of images of the region of interest; selecting a reference image from the plurality of images; forming a predetermined number of difference images by subtracting the absolute value of the pixels of the reference image from the absolute values of pixels in a predetermined number of the plurality of images; eliminating negative pixel values in the predetermined number of difference images; minimizing the side lobes to form a combined difference image for each reference frame, selecting another reference image from the plurality of images and performing the steps of forming a plurality of difference images, eliminating negative pixel values, averaging the resulting predetermined number of difference images and minimizing the side lobes for each selected reference image to form a set of combined difference images which contain the moving target signature. | 07-19-2012 |
20120154197 | GENETIC ALGORITHM ENHANCEMENT OF RADAR SYSTEM SURVIVABILITY - A process for enhancing radar system survivability against a threat includes the construction of multiple computational radar function chromosomes with each of the chromosomes having values for geometric configuration and operational parameters for at least one radar station emitter and at least one decoy. A genetic algorithm analysis is performed on a computer including a crossover operator and a mutation operator to determine a fitness value for multiple chromosomes against the threat. By configuring and operating the radar system based on a survivability value for the fitness value of the genetic algorithm analysis, radar system survivability against a threat is enhanced. A radar system employing genetic algorithm analysis is also provided. | 06-21-2012 |
20120112957 | MULTIDIRECTIONAL TARGET DETECTING SYSTEM AND METHOD - A method and system for investigating and displaying an image of an area of interest comprising a moving vehicle; at least one processor for producing an image of the area of interest; at least one first transmitter for emitting first signals substantially in a first direction, the at least one first transmitter being operatively associated with the moving vehicle and the processor; at least one first receiver for receiving backscattered signals resulting from the first radar signals, the at least one first receiver being operatively associated with the moving vehicle and the processor; at least one second transmitter operatively for emitting second signals in a direction substantially opposite to the first direction, the at least one second transmitter being operatively associated with the moving vehicle and the processor; at least one second receiver for receiving backscattered signals resulting from the second signals, the at least one second receiver being operatively associated with the moving vehicle and the processor, a GPS subsystem for providing position data relating to the position of the vehicle; the at least one first receiver and the at least one second receiver operating to provide image data to the at least one processor; the at least one processor operating to combine image data from the at least one first receiver and the at least one second receiver with the position data to form a single image; and a display to display the combined image data. | 05-10-2012 |
20120112096 | SYSTEM AND METHOD FOR DETERMINING THREE-DIMENSIONAL INFORMATION FROM PHOTOEMISSION INTENSITY DATA - A method and system for investigating properties of an object comprising: a transmitter, including a radiation source, the transmitter providing incident radiation having a plurality of predetermined polarization states; the incident radiation illuminating an object and thereby causing the object to emit photoemission; a receiver, receiving photoemission from the object when the object is illuminated by the incident radiation, the receiver including a detector, the detector providing photoemission intensity data; and signal processing circuitry, in electrical communication with the detector, the signal processing circuitry determining three-dimensional information relating to the object from the photoemission intensity data for each of the plurality of incident polarization states. | 05-10-2012 |
20120112093 | SYSTEM AND METHOD FOR MEASURING DEPOLARIZATION - An apparatus for determining the depolarization efficiency of a environment includes a transmitter, a receiver, and signal processing circuitry. A reference object is located within the environment at a reference distance. The transmitter includes a radiation source providing incident radiation that has an initial polarization as it enters the environment. The receiver receives returned radiation from the reference, which may be diffuse reflection or photoluminescence. The signal processing circuitry calculates the depolarization efficiency of the environment from the initial polarization, luminescence or final polarization, and the reference distance. A method of determining depolarization efficiency includes directing incident radiation having initial polarization through an environment onto a reference, detecting returned radiation from the reference, and calculating the depolarization efficiency using the initial polarization and the luminescence or final polarization. | 05-10-2012 |
20120088164 | Lithium Carbon Monofluoride-Oxygen Battery and Method of Using the Same - A lithium carbon monofluoride-oxygen battery is provided that includes a lithium metal-containing electroactive anode; an electroactive cathode formed of a carbon monofluoride compound; an electrolyte solution formed of an organic solvent and a lithium salt; a casing surrounding the anode, the cathode, and the electrolyte solution; and a port bored through the casing wherein the port selectively allows the flow of gas into the casing. In addition, a method of using an electrochemical battery is provided that includes providing a lithium carbon monofluoride-oxygen battery; closing the valve of the electrochemical battery to block the flow of gas into the battery; discharging the electrochemical battery after closing the valve of the battery; opening the valve of the electrochemical battery after discharging the electrochemical battery to expose the cathode to the flow of oxygen containing gas; and discharging the electrochemical battery after opening the valve of the electrochemical battery. | 04-12-2012 |
20120068280 | Magnetic Nano-Ring Device and Method of Fabrication - A magnetic nano-ring device and method of fabrication includes providing a substrate; forming at least one nano-pillar on the substrate; depositing a plurality of electrodes on the substrate; depositing an anti-ferromagnetic layer on a first electrode of the plurality of electrodes; depositing a first ferromagnetic layer on the anti-ferromagnetic layer; depositing a tunnel barrier layer on the first ferromagnetic layer; depositing a second ferromagnetic layer on the tunnel barrier layer; planarizing the nano-pillars and the second ferromagnetic layer to form a co-planar nano-pillar and second ferromagnetic layer; depositing a second electrode on the co-planar nano-pillar and second ferromagnetic layer; and forming a nano-structure ring in a substantially cylindrical configuration. | 03-22-2012 |
20120012816 | PHOTODETECTORS USING RESONANCE AND METHOD OF MAKING - An infrared photodetector comprising: a thin contact layer substantially transparent to infrared light; an absorption layer positioned such that light admitted through the substantially transparent thin contact area passes through the absorption layer; the absorption layer being configured to utilize resonance to increase absorption efficiency; at least one reflective side wall adjacent to the absorption layer being substantially non-parallel to the incident light operating to reflect light into the absorption layer for absorption of infrared radiation; and a top contact layer positioned adjacent to the active layer. A method of designing a photodetector comprising selecting a type of material based upon the wavelength range to be detected; determining a configuration geometry; calculating the electromagnetic field distributions using a computer simulated design of the configuration geometry, and determining a quantum efficiency spectrum at the desired wavelength or wavelength range; whereby the effectiveness of the photodetector is simulated prior to fabrication. | 01-19-2012 |
20120009485 | ELECTROLYTES IN SUPPORT OF 5V LI ION CHEMISTRY - This invention described the preparation of a series of compounds that can be used as co-solvents, solutes or additives in non-aqueous electrolytes and their test results in various electrochemical devices. The inclusion of these novel compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise impossible with state-of-the-art electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for new Li ion chemistries. The potential application of these compounds goes beyond Li ion battery technology and covers any electrochemical device that employs non-aqueous electrolytes for the benefit of high energy density resultant from high operating voltages. | 01-12-2012 |
20120004878 | DETECTOR ASSEMBLY FOR USE IN ENVIRONMENTS CONTAINING BACKGROUND MAGNETIC NOISE AND METHOD THEREOF - A method and system for detecting a signal source at a specified frequency in the presence of background noise includes a processor; a first sensor mounted at a first location operatively connected to the processor; a second sensor mounted at a second location operatively connected to the processor; the processor operating to compute the amplitudes of the first and second Fourier transforms of the outputs of the first and second sensors, respectively, the difference in the amplitudes of the first and second Fourier transforms being determinative of the existence of a signal being generated at the predetermined frequency. | 01-05-2012 |
20110291109 | POLARIZATION ENHANCED AVALANCHE PHOTODETECTOR AND METHOD THEREOF - An avalanche photodetector comprising a multiplication layer formed of a first material having a first polarization; the multiplication layer having a first electric field upon application of a bias voltage; an absorption layer formed of a second material having a second polarization forming an interface with the multiplication layer; the absorption layer having a second electric field upon application of the bias voltage, the second electric field being less than the first electric field or substantially zero, carriers created by light absorbed in the absorption layer being multiplied in the multiplication layer due to the first electric field; the absorption layer having a second polarization which is greater or less than the first polarization to thereby create an interface charge; the interface charge being positive when the first material predominately multiplies holes, the interface charge being negative when the first material predominately multiplies electrons, the change in electric field at the interface occurring abruptly at the atomic level; the interface charge creating electric field discontinuity causing first electric field to attain the breakdown field in the multiplication region and the second electric field to be low or zero in the absorption layer to thereby eliminate the need for a doped charge layer and the associated thickness of the doped charge layer required to transition from the low field to the high field. Also claimed is a method of making. | 12-01-2011 |
20110291108 | SEMICONDUCTOR PHOTODETECTOR WITH TRANSPARENT INTERFACE CHARGE CONTROL LAYER AND METHOD THEREOF - A detection device comprising a photodetector comprising a first semiconductor layer through which light first enters the photodetector; the first semiconductor layer to semiconductor material crystal lattice which terminates at an interface; the discontinuity of the semiconductor crystal lattice at the interface creating a first interface charge; the first semiconductor layer being an absorption layer in which photons in a predetermined wavelength range are absorbed and create photogenerated carriers; and a second polar semiconductor layer deposited on the crystal lattice of the first semiconductor layer, the second polar semiconductor being substantially transparent to light in the predetermined wavelength range, the second polar semiconductor layer having a total polarization different from the first semiconductor layer so that a second interface charge is induced at the interface between the first and second semiconductor layers; the induced second interface charge reduces or substantially cancels the first interface charge; whereby the reduction or substantial cancellation of the surface charge in the first semiconductor layer increases the collection of photogenerated carriers by the photodetector. A method of improving the quantum efficiency of a semiconductor photodetector comprising providing a semiconductor photodetector having a first layer which has a first interface through which light first enters the semiconductor photodetector; placing a layer of polar material transparent to the band of detection wavelengths that has a polarization substantially different than the polarization of the first layer such that the polarization charge induced at the interface between the layer of polar material and the first surface results in decreased interface recombination of photogenerated minority carriers and an increase in quantum efficiency of the photodetector. | 12-01-2011 |
20110284724 | Method and Apparatus for Non-line-of-sight Imaging - A system and method for obtaining an image of an object out of line of sight, the method comprising directing a chaotic light beam at a first area containing the object; measuring the light from the chaotic light beam at a plurality of instances in time; using a photon detector, detecting light from a second area over a plurality of instances in time; the photon detector not being in the line of sight with the first area but in line-of-sight with a second area; using a processor, correlating the information received by the photon detector with the measurement of light from the chaotic light beam at specific instances in time; and producing an image of the object. The system for imaging information comprising a spatial receiver, a chaotic photon light source for producing light; the light comprising a first beam adapted to be directed at a first predetermined area containing an object, and a second beam which is received by the spatial receiver and measured at specific intervals in time; at least one processor operatively connected to the spatial receiver, the spatial receiver operating to transmit spatial information correlated to specific intervals of time to the processor; and a first receiver operatively connected to the at least one processor and operative to detect the influence of the object on the first portion of the light beam; the first receiver not being in the line of sight with the first predetermined area and adapted to detect light from a second predetermined area spaced from and coplanar with the first predetermined area, the at least one processor operating to correlate the outputs of the first receiver with spatial information derived from the spatial receiver at correlating intervals of time to create an image of the object. | 11-24-2011 |
20110267132 | BI-DIRECTIONAL CIRCUIT BREAKER - A circuit breaker comprising first and second JFETs, each comprising a gate, drain and source connection, the JFETs sources being operatively connected to each other to form a common-source connection and adapted to be connected to and operating to open an external circuit when the current flowing through the JFETs exceeds a predetermined threshold, the JFETs' gates, and common-source connection being operatively connected to a gate driver circuit which causes the JFETs to turn off when the predetermined threshold is exceeded; whereupon the current flows through the common-source connection into the second gate and into the gate driver circuit which causes the gate driver circuit to turn off the first and second JFETs and open the circuit breaker. Also claimed is a method of sensing an overloaded circuit comprising leading and trailing JFETs in a circuit that open the circuit and prevent current flow when a predetermined threshold is exceeded. | 11-03-2011 |
20110264427 | Calibration and Synchronization of Micro Air Vehicle Autopilots - A system, method, and apparatus to train autopilots to fly a simulated aeronautical vehicle includes a three-degree of freedom gimbaled platform comprising a pitch, roll, and yaw axis; an autopilot comprising an inertial measurement unit mounted to the platform; motors that rotate the platform along the pitch, roll, and yaw axes; shaft encoders connected to the motors to calculate an angular position of the platform; motor drivers connected to the motors to power the motors; a microcontroller connected to the motor drivers; a quadrature encoder connected to the shaft encoders and the microcontroller; sensors that generate and sense environmental conditions affecting the platform and the autopilot; a flight simulator connected to the microcontroller; and a computer that executes the flight simulator causing actuation of the platform, causing the sensors to generate environmental conditions, and causing the autopilot to react to the environmental conditions. | 10-27-2011 |
20110243192 | METHOD AND APPARATUS FOR TRACKING A FREQUENCY-HOPPED SIGNAL - A frequency hopping signal receiving system comprising: a receiver for extracting discrete-time samples from the signal; a memory connected to the receiver for storing the extracted discrete-time samples from the signal; at least one processor operatively connected to the memory for: determining a state-space vector that captures relevant information to describe the dynamics of the signal; selecting a parameter to represent the probability of hopping associated with the signal; generating particle filters to estimate unknown parameters in the state-space vector based upon the extracted discrete-time samples by generating random particles that approximate the filtering distribution having importance weights; specifying the importance function in closed-form in a convenient mixture representation, which enables drawing particles and updating the importance weights; constructing an estimator to generate hop particles based upon observing at least one sample hop and then evaluating the estimator using a conditional expected value; using a spectrogram to generate particles in conjunction with an importance function; and estimating the hop frequency, hop time, and amplitude parameters, and a method thereof. | 10-06-2011 |
20110222781 | METHOD AND SYSTEM FOR IMAGE REGISTRATION AND CHANGE DETECTION - A system and method for detecting changes by comparing images which cover the same physical area but are collected at different times, the system comprising: at least one input for inputting an image of a target area; the image of the target area having signatures representing outstanding features; at least one processor operating to divide the image of a target area into a plurality of target subimages; at least one memory comprising reference data comprising reference subimages taken at or near the target area at various times, the at least one processor operating to determine a sparse image representation from the reference data; the sparse image representation of the target data being a linear combination of reference data from corresponding reference subimages stored in the at least one memory; the at least one processor operating to compare the target image to the sparse image representation and to match signatures from the target image to the sparse image representation to register the images and perform change detection. | 09-15-2011 |
20110210806 | THIN FILM COMPOSITIONALLY STRATIFIED MULTI-LAYER HETEROSTRUCTURE FOR TEMPERATURE INSENSITIVE LOW DIELECTRIC LOSS AND ENHANCED TUNABLITY OTM COMMUNICATIONS DEVICES AND METHODS FOR FABRICATION THEREOF - A compositionally stratified multi-layer Ba | 09-01-2011 |
20110198515 | TERAHERTZ RADIATION DEVICE AND METHOD OF GENERATING TERAHERTZ RADIATION - A method and device for generating terahertz radiation comprising a substrate; a plurality of segments of polar crystal material formed on the substrate, the segments having an internal electric polarization; each segment comprising at least two edges oriented substantially perpendicular to the polar axis such that the electric polarization terminates at the edges and the segment comprises a majority of positive charges on one edge and a majority of negative charges on the opposite edge thereby leading to creation of an internal electric field; whereby when irradiated by a pulsed source of duration less than one picosecond, electron-hole pairs are generated within the segments and the internal electric field separates and accelerates the electron-hole pairs to thereby produce terahertz radiation. | 08-18-2011 |
20110163912 | SYSTEM AND METHOD FOR ITERATIVE FOURIER SIDE LOBE REDUCTION - A method and system for generating images from projection data comprising: at least one processor for processing input data, the input data comprising positional data and image data, the image data comprising frequency data for a pre-determined number k frequencies the at least one processor operating to: a) set the frequency data to zero for a predetermined percentage of the k frequencies to form modified frequency data; b) form a preliminary image comprising an array of retained pixel values based upon first positional data and the modified frequency data; c) set the frequency data to zero for a predetermined percentage of the k frequencies to form modified frequency data; d) form a modified image comprising an array of pixels based upon the positional data and the modified frequency data; e) compare the retained array of pixel values to the pixel values of the modified image formed at step (d); f) retain the minimum pixel value at each pixel location to form an image comprising minimum pixel values; g) repeat steps (c) through (f) for L iterations each time retaining an array of pixel values; h) output the image of retained pixel values. | 07-07-2011 |
20110150331 | System and Method for Super-Resolution Imaging from a Sequence of Color Filter Array (CFA) Low-Resolution Images - A method and system for improving picture quality of color images by combing the content of a plurality of frames of the same subject; comprising: at least one processor; the at least one processor comprising a memory for storing a plurality of frames of a subject; the at least one processor operating to combine the content of plurality of frames of the subject into a combined color image by performing: a process in which at least two multicolored frames are converted to monochromatic predetermined color frames; a gross shift process in which the gross shift translation of one monochromatic predetermined color frame is determined relative to a reference monochromatic predetermined color frame; a subpixel shift process utilizing a correlation method to determine the translational and/or rotational differences of one monochromatic predetermined color frame to the reference monochromatic predetermined color frame to estimate sub-pixel shifts and/or rotations between the frames; and an error reduction process to determine whether the resolution of the resulting combined color image is of sufficient resolution; the error reduction process comprising applying at least one spatial frequency domain constraint and at least one spatial domain constraint to the combined color image to produce at least one high-resolution full color image. | 06-23-2011 |
20110142366 | System and Method for Super-Resolution Imaging from a Sequence of Color Filter Array (CFA) Low-Resolution Images - A method and system for improving picture quality of color images by combing the content of a plurality of frames of the same subject; comprising: at least one processor; the at least one processor comprising a memory for storing a plurality of frames of a subject; the at least one processor operating to combine the content of plurality of frames of the subject into a combined color image by performing: a process in which at least two multicolored frames are converted to monochromatic predetermined color frames; a gross shift process in which the gross shift translation of one monochromatic predetermined color frame is determined relative to a reference monochromatic predetermined color frame; a subpixel shift process utilizing a correlation method to determine the translational and/or rotational differences of one monochromatic predetermined color frame to the reference monochromatic predetermined color frame to estimate sub-pixel shifts and/or rotations between the frames; and an error reduction process to determine whether the resolution of the resulting combined color image is of sufficient resolution; the error reduction process comprising applying at least one spatial frequency domain constraint and at least one spatial domain constraint to the combined color image to produce at least one high-resolution full color image. | 06-16-2011 |
20110118950 | METHOD FOR ESTIMATION OF AT LEAST ONE ENGINE PARAMETER - A system comprising determination of tuning parameters enabling optimal estimation of unmeasured engine outputs, e.g., thrust. The level of degradation of engine performance is generally described by unmeasurable health parameters related to each major engine component. Accurate thrust reconstruction depends upon knowledge of these health parameters, but there are usually too few sensors to estimate their values. A set of tuning parameters is determined which accounts for degradation by representing the overall effect of the larger set of health parameters as closely as possible in a least squares sense. The method utilizes the singular value decomposition of a matrix to generate a tuning parameter vector of low enough dimension that it can be estimated by a Kalman filter. Generation of a tuning vector specifically takes into account the variables of interest. The tuning parameters facilitate matching of both measured and unmeasured engine outputs, as well as state variables. | 05-19-2011 |
20110110836 | DESULFURIZATION APPARATUS AND METHOD - A method and system for desulfurization comprising first and second metal oxides; a walled enclosure having an inlet and an exhaust for the passage of gas to be treated; the first and second metal oxide being combinable with hydrogen sulfide to produce a reaction comprising a sulfide and water; the first metal oxide forming a first layer and the second metal oxide forming a second layer within the walled surroundings; the first and second layers being positioned so the first layer removes the bulk amount of the hydrogen sulfide from the treated gas prior to passage through the second layer, and the second layer removes substantially all of the remaining hydrogen sulfide from the treated gas; the first metal oxide producing a stoichiometrical capacity in excess of 500 mg sulfur/gram; the second metal oxide reacts with the hydrogen sulfide more favorably but has a stoichiometrical capacity which is less than the first reactant; whereby the optimal amount by weight of the first and second metal oxides is achieved by utilizing two to three units by weight of the first metal oxide for every unit of the second metal oxide. | 05-12-2011 |
20110091370 | Mechanochemical Synthesis of Carbon Fluorides and an Electrochemical Cell using the Synthesized Carbon Fluorides - Carbon fluoride is synthesized by reactively or high intensity/energy milling at ambient room temperature carbon-containing material (such as graphite, carbon black, coke, or other carbon-based material) with an inorganic fluoride agent (such as cobalt trifluoride) other than fluorine gas. The following chemical reaction occurs: xC+CoF | 04-21-2011 |
20110062956 | MEMS DEVICE WITH SUPPLEMENTAL FLUX CONCENTRATOR - A microelectromechanical modulating magnetic device comprising: a base; a magnetic transducer that provides an output in response to a magnetic field associated with the base; at least one movable flux concentrator positioned to move relative to the magnetic transducer; at least one flux collector positioned to collect flux for transfer onto at least one movable flux concentrator; which transfers the magnetic flux to the magnetic transducer for detection and measurement purposes; support structure for enabling the at least one movable flux concentrators to move within a predetermined frequency range; a power source for causing the movable flux concentrators to move at a frequency within the predetermined frequency range; whereby magnetic flux may enter through the flux collector, pass through the at least one movable flux concentrator for transfer to the magnetic transducer, and due to the movement of the movable flux concentrator, the signal outputted from the transducer is modulated. | 03-17-2011 |
20110054839 | METHOD AND SYSTEM OF CONFIDENCE INTERVAL METHODOLOGY FOR RATIO MEANS - A method and system for determining whether the number of samples taken from a population of units where the distribution of X and Y variables are unknown by evaluating ratio mean measurements on a computer to determine a confidence interval. The method comprising: inputting samples from the total population with each unit sample having at least two variables X and Y; redefining the multivariate data that comprises the two variables X and Y; estimating the mean; computing the standard error; using a bootstrapping method, generating boot strap samples, computing a Z distribution based upon the bootstrap samples; and computing the confidence interval. The system comprises a processor for performing the steps of the method | 03-03-2011 |
20110048954 | ENHANCED SOLDERABILITY USING A SUBSTANTIALLY PURE NICKEL LAYER DEPOSITED BY PHYSICAL VAPOR DEPOSITION - A first preferred method for increasing the solderability of a substrate comprising: preparing the substrate for nickel plating by cleaning and removal of surface contaminants; plating a first nickel film of the desired thickness directly onto the substrate; preparing the nickel film comprising thoroughly cleaning the surface; depositing a substantially pure nickel film directly on the first nickel film using a suitable PVD technique; and applying solder to the substantially pure nickel film. Another preferred method for increasing the solderability of a substrate comprising plating a first nickel layer directly onto the substrate by using an electrolytic or electroless nickel plating process; depositing a substantially pure nickel film directly on the first nickel film using physical vapor deposition; and applying solder to the substantially pure nickel film. | 03-03-2011 |
20110042647 | CORRUGATED-QUANTUM WELL INFRARED PHOTODETECTOR WITH REFLECTIVE SIDEWALL AND METHOD - A quantum well infrared photodetector comprising a tunable voltage source; first and second contacts operatively connected to the tunable voltage source; a substantially-transparent substrate adapted to admit light; first and second layers operatively connected to the first and second contacts; a quantum well layer positioned between the first and second layers; light admitted through the substantially transparent substrate entering at least one of the first and second layers and passing through the quantum well layer; at least one side wall adjacent to at least one of the first and second layers and the quantum well layer; the at least one side wall being substantially non-parallel to the incident light; the at least one sidewall comprising reflective layer which reflects light into the quantum well layer for absorption. A preferred method for improving the reflectivity of a quantum well infrared photodetector comprises forming a first sidewall layer on the sidewalls of the corrugated quantum well infrared photodetector; forming a second sidewall layer on the sidewalls of the corrugated quantum well infrared photodetector; the second sidewall layer being formed of a reflective material and the first sidewall layer operating to electrically isolate the reflective material from at least one of the first and second contact layers; whereby the reflective metal operates to reflect light rays into corrugated quantum well infrared photodetector device and to substantially prevent infrared rays in environment from entering through the sidewalls. | 02-24-2011 |
20110025521 | BODY MOUNTED DETECTOR AND METHOD FOR DETECTING FLASH IN SOLAR BLIND ULTRAVIOLET SPECTRAL REGION - A detector assembly for detecting a flash from the firing of a weapon comprising: a first support; a plurality of sensors supported by the first support for detecting light from the flash; the sensors operating to receive light in the range of ultraviolet light from approximately 100 nm to approximately 290 nm; a directional indicator for indicating the directional location of the first support; and an indicator assembly comprising at least one indicator; the at least one indicator operating to display the directional location of the flash. | 02-03-2011 |
20110018136 | APPARATUS AND METHOD FOR FORMING ELECTONIC DEVICES - A method of forming at least one electronic device on a substrate comprising creating a depository and an attached capillary; providing a liquid containing particles in the range 1 nanometer to 1 millimeter for deposit into the depository; the liquid flowing into the at least one capillary by capillary action; evaporating the liquid such that the particles form an agglomerate beginning at the end of the at least one capillary with a substantially uniform distribution of the particles within the agglomerate; whereby the agglomerate is used to form a part of the at least one electronic device. An microelectronic integrated circuit device comprising a substrate; a depository coupled to said substrate formed by at least one wall, a capillary channel coupled to said depository adapted to be filled with liquid comprising nanoparticles by capillary action, whereby as the liquid evaporates, an agglomerate forms in the capillary channel having a substantially uniform distribution of the particles. | 01-27-2011 |
20110012778 | METHOD AND SYSTEM FOR FORMING VERY LOW NOISE IMAGERY USING PIXEL CLASSIFICATION - A method and system for generating images from projection data comprising inputting from at least one data receiving element first values representing correlated positional and recorded data; each of said first values forming a point in an array of k data points; forming an image by processing the projection data utilizing a pixel characterization imaging subsystem that combines the positional and recorded data to form the SAR imagery utilizing one of a back-projection algorithm or range migration algorithm; integrating positional and recorded data from many aperture positions, comprising: forming the complete aperture A | 01-20-2011 |
20110006944 | COMPUTATIONALLY EFFICENT RADAR PROCESSING METHOD AND SYTEM FOR SAR AND GMTI ON A SLOW MOVING PLATFORM - A method and system for processing radar data obtained from a platform which is subjected to non-uniform movement, the distance the platform travels during the formation of an image comprising an aperture; the system comprising software programming for performing a subroutine for building up an average pulse representing a single point on the aperture; the subroutine comprising the steps of inputting radar data from a radar antenna; passing the radar signal through low noise amplifier to reduce impact of electronic noise from the radar system; down converting the signal with a mixer to obtain a lower frequency; filtering out harmonics from the higher frequency range; sampling the radar data using an analog to digital converter at least at Nyquist down range frequency; based upon the IF of the radar; determining a scene center (center of SAR imagery) for the purpose of motion compensation; performing a two stage averaging scheme of the received signals with a variable window function; determining a window function based upon the velocity and acceleration of the platform and scene center; the window function comprising a first stage window; coherently averaging N pulses together to create an average pulse; performing an inverse Fourier transform; compensating to the scene center by multiplying by a complex exponential based upon both the GPS and inertial navigational system; summing the average pulses using low pass filter; the software programming operating to repeat the step of building up an average pulse a first predetermined number of times for a time period that is less than the Nyquist sample time interval; the software programming operating to repeat the step of building an average pulse for a predetermined number of times to generate a second predetermined number of average pulses; the software programming operating to perform a two dimensional inverse Fourier transform to obtain SAR image; outputting the SAR image on a display screen; and a display for displaying the outputted SAR image. | 01-13-2011 |
20100321234 | COMPUTATIONALLY EFFICENT RADAR PROCESSING METHOD AND SYTEM FOR SAR AND GMTI ON A SLOW MOVING PLATFORM - A method and system for processing radar data obtained from a platform which is subjected to non-uniform movement, the distance the platform travels during the formation of an image comprising an aperture; the system comprising software programming for performing a subroutine for building up an average pulse representing a single point on the aperture; the subroutine comprising the steps of inputting radar data from a radar antenna; passing the radar signal through low noise amplifier to reduce impact of electronic noise from the radar system; down converting the signal with a mixer to obtain a lower frequency; filtering out harmonics from the higher frequency range; sampling the radar data using an analog to digital converter at least at Nyquist down range frequency; based upon the IF of the radar; determining a scene center (center of SAR imagery) for the purpose of motion compensation; performing a two stage averaging scheme of the received signals with a variable window function; determining a window function based upon the velocity and acceleration of the platform and scene center; the window function comprising a first stage window; coherently averaging N pulses together to create an average pulse; performing an inverse Fourier transform; compensating to the scene center by multiplying by a complex exponential based upon both the GPS and inertial navigational system; summing the average pulses using low pass filter; the software programming operating to repeat the step of building up an average pulse a first predetermined number of times for a time period that is less than the Nyquist sample time interval; the software programming operating to repeat the step of building an average pulse for a predetermined number of times to generate a second predetermined number of average pulses; the software programming operating to perform a two dimensional inverse Fourier transform to obtain SAR image; outputting the SAR image on a display screen; and a display for displaying the outputted SAR image. | 12-23-2010 |
20100310259 | FREE.about.SPACE QUANTUM COMMUNICATIONS PROCESS OPERATIVE ABSENT LINE-OF-SIGHT - Photonic signals are tagged with a pre-selected modification, such as a polarization signature to carry data across an obstructed path between sender and receiver. Communication authentication through polarization variation allows for Yuen-Kumar or entangled photon quantum communication protocols to propagate through environmental scattering media such as air, smoke, fog, rain, and water. While ultraviolet light photons are well suited as a carrier for quantum communication signals scattered in air, it is appreciated that visible wavelengths have longer propagation paths in water to convey non-line-of-sight data. A secure signal is scattered by the media and simultaneously communicated to a single recipient or multiple recipients exposed to scattered signal portions. A process of solving the scattering processes through a random scattering media is provided to reconstruct a quantum keyed message at a receiver. The scattering of the signal is utilized herein to provide non-line-of-sight and intentional short-range communication. | 12-09-2010 |
20100304137 | Fiber modified with particulate through a coupling agent - An article is provided that includes a polymeric fiber that has an excess number of surface active reactive moieties relative to the number of surface reactive moieties found on the fiber in a native state. A particle is bonded covalently to the fiber through an intermediate coupling agent. Multiple particles can be covalently bonded to the fiber, the multiple particles can be bonded uniformly or asymmetrically around the fiber diameter. A process for modifying a fiber includes creating surface activated reactive moieties thereon. The activated fiber is then exposed to a liquid solution containing a coupling agent to form a covalent bond. The coupling agent is also reacted with a particle in a liquid solution to form a covalent bond between the coupling agent and the particle. The coupling agent is covalently bonded to either a particle and then bonded to the fiber, or vice versa. | 12-02-2010 |
20100294916 | METHOD AND SYSTEM FOR CREATING AN IMAGE USING THE QUANTUM PROPERTIES OF SOUND OR QUANTUM PARTICLES - A preferred embodiment comprises a method and system for generating an image of a subject or area comprising a processor; at least one incoherent light source which illuminates the subject or area; a first receiver for receiving light reflected from the subject or area operatively connected to the processor; a second receiver for receiving light from at least one incoherent light source operatively connected to the processor; the first receiver collecting the amount of light reflected from the subject and transmit a value at specific intervals of time; the second receiver comprising a second detector which detects and transmits spatial information regarding the incoherent light source independent of any data concerning the subject at specific intervals of time; wherein the processor correlates the value transmitted by the first receiver with the spatial information derived from the second receiver at correlating intervals of time to create an image of the subject or area. Alternatively, sound or quantum particles may replace the incoherent light source. | 11-25-2010 |
20100282059 | AUTOMATIC PRIMER FEED MECHANISM - A primer feed mechanism mounted on a carrier of an artillery piece includes a body assembly for mounting the primer feed mechanism on the carrier, the body assembly having guide rails and a follower plate; a tray assembly that is movable on the guide rails of the body assembly, the tray assembly including a housing and an injector arm assembly; an actuator drive link connected to the carrier; a quick release link connected to the actuator drive link; and a drive link assembly connected to the quick release link and to the injector arm assembly; wherein one end of the injector arm assembly includes a push pin that reciprocates in the housing to inject a primer and another end of the injector arm assembly includes a follower that travels in the follower plate of the body assembly. | 11-11-2010 |
20100267984 | OXYFLUOROPHOSPHATE SYNTHESIS PROCESS AND COMPOUND THEREFROM - An electrolyte compound has the formula | 10-21-2010 |
20100258708 | METHOD AND SYSTEM FOR LIDAR USING QUANTUM PROPERTIES - A method and system for at least three dimensional imaging comprising a processor for processing information; at least one photon light source generating a beam of light; a modulator for modulating the light of the at least one photon light source; a plurality of first receivers operative to detect the influence of a subject on the beam; the plurality of first receivers being operatively connected to the processor and operating to transmit nonspatial information to the processor; the plurality of first receivers being spaced at known, different distances from the subject, whereby comparison of each of the outputs of the plurality of first receivers provides three dimensional information concerning the subject; the processor operating to correlate the outputs of the plurality of first receivers with spatial information derived from the modulated light at correlating intervals of time to create a three dimensional image of the subject. | 10-14-2010 |
20100231211 | MAGNETIC SENSOR METHOD AND APPARATUS - A magnetic field sensing device comprising at least one magnetic sensor attached to a base structure, rotating member; and at least one flux concentrator mounted on the rotating member; whereby as the rotating member turns, the at least one flux concentrator shields the magnetic sensor so as to modulate the output of the at least one magnetic sensor. A second embodiment comprises a rotating member that rotates about an axis with at least one flux concentrator positioned thereon having a longitudinal axis in the radial direction of the rotating member; and at least one vector-type magnetic sensor fixedly mounted in the near proximity to the axis of the rotating member such that the magnetic field detected is modulated due to the rotation of the rotating member. Optionally, at least one fixed flux concentrator may be positioned along the periphery of the rotating member so as to increase magnetic flux input. | 09-16-2010 |
20100202040 | DYNAMIC IMAGING AND/OR IDENTIFICATION APPARATUS AND METHOD THEREOF - A preferred embodiment comprises a dynamic display based on a program image element which will only generate a preprogrammed image. As an example, the image element may comprise electrically-driven MEMS mirrors. This example may be embedded in an ID card. At the time of issue of the ID card, pixels in the mirror array will be permanently programmed as either ‘alive’ or ‘dead’ in a pattern matching the photo of the person in question. When stimulated, only ‘alive’ pixels will actuate, creating an image for comparison to the adjacent printed photo. Due to its dynamic behavior, delicate mechanical structures, and single-time hard-wiring, duplication of, or tampering with, this secondary dynamic image will be nearly impossible. The ID car is but one exemplary application and other embodiments, applications, and methods are described in the specification and claims. | 08-12-2010 |
20100187550 | LIGHT EMITTING DIODE - In a preferred embodiment, a light emitting device comprising: a polar template; a p-type layer grown on the polar template; the p-type layer having a first polarization vector; the first polarization vector having a first projection relative to a growth direction; an n-type layer grown on the p-type layer; the n-type layer having a second polarization vector; the second polarization vector having a second projection relative to said growth direction that is larger than the first projection of the first polarization vector for the p-type layer; the n-type layer and p-type layer forming an interface; whereby the first polarization vector in the p-layer and second polarization vector in the n-layer create a discontinuity at the interface resulting in a negative charge appearing at the interface. In another preferred embodiment, a light emitting device comprising: a polar template; a n-type layer grown on the template; the n-type layer having a first polarization vector; the first polarization vector having a first projection relative to a growth direction; an p-type layer grown on the n-type layer; the p-type layer having a second polarization vector; the second polarization vector having a second projection relative to said growth direction that is larger than the first projection of the first polarization vector for the p-type layer; the n-type layer and p-type layer forming an interface; whereby the first polarization vector in the p-layer and second polarization vector in the n-layer create a discontinuity at the interface resulting in a negative charge appearing at the interface. | 07-29-2010 |
20100185067 | NONINVASIVE DETECTION OF ELEMENTS AND/OR CHEMICALS IN BIOLOGICAL MATTER - A method of detecting oxygen and/or chemical content in a subject, comprising generating at least one spectral image of the subject; generating at least one spectral image of a reference object; comparing spectrum from the subject image to the reference image to thereby reveal the relative oxygen content of the subject. A system for determining the level of oxygenation of the blood of a subject body part comprising: a hyperspectral image generator for generating a plurality of spectral images; an image capture device for capturing the spectral images; a processor for generating hyperspectral image cubes such that the spectrum of the body part is extracted and normalized using the spectrum from the reference object to cancel out the spectral response of the light source and the imager; said processor comparing spectral from a subject image to reference images to thereby reveal the relative oxygen content of the subject. | 07-22-2010 |
20100150222 | QUANTUM BASED INFORMATION TRANSMISSION SYSTEM AND METHOD - A method and system of data transmission; the method comprising: converting data into qubits; transmitting a first qubit; measuring the first qubit at receiver location; determining whether or not to transmit portions of data from a sequential successive qubit based upon the value of the first qubit measured at the receiver location. The system comprising a sender and at least one receiver, the sender comprising: a converter for converting data into qubits; a modulator for modulating a signal based upon the values of the qubits; a transmitter for transmitting the modulated signal to at least one receiver; the at least one receiver comprising: a detector for measuring the value of at least one qubit; a feedback circuit for transmitting the measured value of the at least one qubit to the sender; whereby the transmission of data for each successive qubit is based upon the value measured for the preceding qubit and the sender utilizes only the data for each successive qubits which correlates to the measured value of the preceding qubit. | 06-17-2010 |
20100141508 | METHOD AND SYSTEM FOR FORMING AN IMAGE WITH ENHANCED CONTRAST AND/OR REDUCED NOISE - A method and system for generating images from projection data; a preferred embodiment comprising inputting projection data from at least one receiving element; generating a first aperture or array of data points containing positional and signal data; arbitrarily and/or randomly removing data points from the first array to form a series of subarrays comprising different sets of data points; generating preliminary images from the subarrays; comparing the corresponding image pixels from two preliminary images to determine for each pixel location the lesser or equal pixel values; forming a merged image from the lesser or equal pixel values; and repeating the comparison of corresponding image pixels of another preliminary image to the merged image to determine the lesser or equal pixel values until a merged image of the desired quality is obtained. A preferred embodiment of the system may comprise at least one processor, comparator and/or image generator. | 06-10-2010 |
20100140458 | METHOD AND SYSTEM FOR QUANTUM AND QUANTUM INSPIRED GHOST IMAGING - A preferred embodiment comprises a method and system for generating an image of a subject or area comprising a processor; at least one incoherent light source which illuminates the subject or area; a first receiver for receiving light reflected from the subject or area operatively connected to the processor; a second receiver for receiving light from at least one incoherent light source operatively connected to the processor; the first receiver collecting the amount of light reflected from the subject and transmit a value at specific intervals of time; the second receiver comprising a second detector which detects and transmits spatial information regarding the incoherent light source independent of any data concerning the subject at specific intervals of time; wherein the processor correlates the value transmitted by the first receiver with the spatial information derived from the second receiver at correlating intervals of time to create an image of the subject or area. Alternatively, sound or quantum particles may replace the incoherent light source. | 06-10-2010 |
20100111124 | PUMPED SEMICONDUCTOR LASER SYSTEMS AND METHODS - A method for emitting laser radiation includes: emitting first laser radiation using a first laser, wherein said first laser is a laser diode; receiving the first laser radiation by a second laser comprising CdSe | 05-06-2010 |
20100102204 | ACTIVE OPTICAL LIMITING SEMICONDUCTOR DEVICE AND METHODS - An optical switching system comprising an embodiment with a high pass filter operable to eliminate a portion of frequencies present in an image and an optical device operative to receive the spectrally modified image from the high pass filter, alternatively amplify the spectrally modified image, and propagate at least those frequency components in the spectrally modified image exhibiting a frequency less than an absorption frequency of the optical switching device when the optical switching device is active. Alternatively, the optical switching system may transmit an image only when the system is active. The optical switching system may, for example, comprise superluminescent light emitting diodes which may be, for example, formed in the shape of an inverted truncated prism. For human viewing purposes, the operative transmission ranges may closely coincide with the maximum sensitivity of the photopic response of the corresponding red, blue and green cones in human eyes. | 04-29-2010 |
20100079729 | SYSTEM FOR DISPLAYING IMAGES AND/OR INFORMATION ON AIRCRAFT BLADES AND METHOD THEREOF - A system for displaying information via a light source on rotating helicopter blades of an aircraft such as a helicopter is provided. The light source may be a laser light source and the light therefrom may be directed onto the aircraft blade by one or more motion controlled mirrors and a computer controller. A sensor is capable of determining the position of helicopter blades during rotation, such that light may be projected upon only the moving blade at precisely timed intervals, so as to form perceivable graphics and/or messages thereon. In addition, such system may be utilized for displaying graphics and/or messages on rotating propellers of fixed wing aircraft. | 04-01-2010 |
20100067822 | SYSTEM AND METHOD OF SUPER-RESOLUTION IMAGING FROM A SEQUENCE OF TRANSLATED AND ROTATED LOW-RESOLUTION IMAGES - A method and system for super-resolving images from low-resolution sequences comprising an image processor having an input for inputting multiple images of a scene with sub-pixel translations and rotations; one of the images of the scene being a reference image; and at least one memory comprising a gross translation estimation algorithm for estimating overall translations of at least one image with respect to the reference image on the image processor and aligning the inputted images according to the gross translation estimates on the image processor; a sub-pixel estimation algorithm for obtaining the sub-pixel shift and rotation of each image with respect to the reference image; and an error reduction algorithm for applying at least one spatial frequency domain constraint and at least one spatial domain constraint to the images to produce a high-resolution image. | 03-18-2010 |
20100052652 | APPARATUS AND METHOD FOR SPURIOUS-FREE SIGNAL RANGE MEASUREMENT FOR RF CIRCUITRY - The present invention is directed to an apparatus and methodology for performing spurious-free dynamic range (SFDR) measurements on an RF circuit, such as a mixer, using a single analog input port. The present invention is designed for use when access to the intermediate frequency (IF) port in a radio frequency (RF) front-end circuit is not available, when the traditional two-port method for making an SFDR measurement is inadequate. Passing the analog input through a directional coupler between the RF combiner and the mixer facilitates the performance of the traditional third order intermodulation (IMD) test. Key differences between the single-port and traditional two-port setups are considered and examined, and experimental data obtained using the single-port setup is compared to data obtained using the traditional two-port set-up for different mixer models. Comparison of similar results yields confirmation and a calibration to account for the additional losses introduced by the directional coupler. | 03-04-2010 |
20100039106 | MEMS DEVICE WITH TANDEM FLUX CONCENTRATORS AND METHOD OF MODULATING FLUX - A microelectromechanical modulating magnetic sensor comprising a base; a magnetic transducer associated with the base that provides an output in response to a magnetic field; a pair of movable flux concentrators positioned to move relative to the magnetic transducer; the pair of movable flux concentrators having a region of high flux concentration between the pair of movable flux concentrators; the pair of flux concentrators moving together in tandem with the distance between the pair remaining substantially constant during movement; support structure for supporting the pair of movable flux concentrators; a power source for causing the movable flux concentrators to move at a frequency within a predetermined frequency range; whereby when the pair of movable flux concentrators is in a first position the region of high flux concentration is in a first location, and when the pair of movable flux concentrators is in a second position, the region of high flux concentration is in a second position; such that as the flux concentrators move from the first position to the second position the intensity of the flux sensed by the transducer is modulated as the region of high flux concentration approaches and recedes from the location of the transducer. | 02-18-2010 |
20100022181 | HIGH EFFICIENCY & HIGH POWER PATCH ANTENNA AND METHOD OF USING - A patch antenna system and method comprising a base extending in a first plane; at least one patch mounted in a plane substantially parallel to the first plane; spaced from the base by at least one metallic post such that between the base and patch is substantially only gaseous fluid (which may be air). At least one power source may be operatively connected to the at least one patch for generation of electromagnetic waves at a center frequency of approximately 5.8 Gigahertz. The method of neutralizing unattended microwave devices comprises connecting a power source to a patch antenna and operating the patch antenna at a frequency in the range of approximately 3.89 to of 5.85 Gigahertz in the vicinity of a suspected unattended microwave device used to activate an explosive device to thereby jam any communication signal to the unattended microwave device and prevent the activation. | 01-28-2010 |
20100020836 | USE OF CURRENT CHANNELING IN MULTIPLE NODE LASER SYSTEMS AND METHODS THEREOF - Current channels, blocking areas, or strips in a semiconductor laser are used to channel injected current into the antinodal region of the optical standing wave present in the optical cavity, while restricting the current flow to the nodal regions. Previous devices injected current into both the nodal and antinodal regions of the wave, which is fed by the population inversion created in the active region by the injected electrons and holes, but inversion created in the nodal regions is lost to fluorescence or supports the creation of undesirable competing longitudinal modes, causing inefficiency. Directing current to the antinodal regions where the electric field is at its maximum causes a selected longitudinal mode to preferentially oscillate regardless of where the longitudinal mode lies with respect to the gain curve. In one embodiment, exacting fabrication of the Fabry-Perot cavity correlates the current channels to antinodal regions, vis-a vis current blocking areas, strips or segmented layers. | 01-28-2010 |
20100006780 | Method and Apparatus for Enhanced Terahertz Radiation from High Stacking Fault Density - A method and device for generating terahertz radiation comprising a polar crystal material layer operative to emit terahertz radiation; the polar crystal material layer comprising a plurality of stacking faults; the stacking faults lying substantially perpendicular to the polar axis and forming boundaries at which the internal electric polarization terminates leading to charges accumulating at the boundaries, and creation of internal electric fields oriented along the polar axis; a pulsed radiation source for creating photogenerated carriers in the polar crystal material; whereby the photogenerated carriers accelerate in the internal electric fields associated with the termination of the internal electric polarization by the stacking faults to thereby generate terahertz radiation. | 01-14-2010 |
20090194702 | METHOD AND SYSTEM FOR QUANTUM AND QUANTUM INSPIRED GHOST IMAGING - A preferred embodiment comprises a method and system for (a) detecting objects or targets which may or may not be nonreflective to electromagnetic radiation, and/or (b) generating an image of a subject or area, comprising generating an entangled photon pair beam; splitting the entangled photon pair beam into first and second parts; the first parts being directed in a first direction towards a first location, and the second parts being received into a measuring device; measuring the physical characteristics of the conjugate second parts to determine whether or not the first parts have encountered the presence or absence of an object at the first location in combination with the time that the first part takes to enter the first location. The method and system incorporate a photon beam in a reference path that never directly interacts with the object yet is determinative of presence or absence of an object at the first location. The splitting of the entangled photon pair beam occurs prior to the first parts being absorbed by said object, and the measuring of the characteristics of the conjugates occurs subsequent to the splitting of the entangled photon beam. | 08-06-2009 |