Patent application number | Description | Published |
20090044641 | TRACE SAMPLER - A position of an object moving through a region of interest is determined, and at least one source of an air stream is selectively activated based on the determined position. The air stream is capable of dislodging a particle from the object moving through the region of interest. The air stream is directed toward the region of interest. An air collector is selectively activated, based on the determined position, to draw air from the region of interest. The drawn air is deposited on a sample collector, and the sample collector is analyzed to determine whether the deposition of the air stream left particles of a material of interest on the sample collector. | 02-19-2009 |
20100240140 | ENERGETIC MATERIAL DETECTOR - A method of detecting energetic materials, such as explosives, includes energizing a sample area that contains particles of energetic materials. In the method, temperature characteristics from the sample area are monitored, and a temperature released from exothermic decomposition of the particles is detected. The method further includes analyzing the detected temperature to determine the presence of the exothermic compound which caused the decomposition. | 09-23-2010 |
20110024626 | TRACE SAMPLING - A trace sampling detection system includes a gathering device configured to gather particles through a handle-bar, a gate and an air-stream gatherer. The handle-bar includes collection holes positioned to be adjacent to a user's hand when the user grips the handle-bar, and is configured to dislodge and capture particles from the user's hand when the user grips and moves the handle-bar. The gate includes a series of collection holes, is positioned to be adjacent to the user's clothing when the user traverses the gate, and is configured to dislodge and capture particles from the user's clothing in response to pressure applied from the user. The air-stream gatherer includes an outward vent and an in-drawing vent, and is positioned to enable objects, such as the user's feet, to be placed between the outward and in-drawing vents. The air stream is configured to dislodge and capture particles from objects, such as the user's feet, that block the air-stream between the vents. A collection tube is configured to deposit gathered particles from the gathering device onto a portion of a sample media. A carousel wheel that includes the sample media is configured to rotate the sample wheel such that the portion of the sample media including the gathered particles is presented to an exothermic decomposition detector that detects, through an infrared sensor, the decomposition of the gathered particles. | 02-03-2011 |
Patent application number | Description | Published |
20090218543 | CATALYTIC NANOPARTICLES FOR NERVE-AGENT DESTRUCTION - The present invention relates to compositions and methods for sorbing (e.g., adsorption and chemisorption) and destroying organophosphate chemical agents. In certain embodiments, the invention contemplates the use of finely divided, modified nanoscale metal oxide particles. In one embodiment, a suspension of magnetite (Fe | 09-03-2009 |
20100222519 | Responsive Materials for Isolating Organic Compounds - One aspect of the present invention relates to polymers containing redox-responsive moieties (such as, ferrocene). In certain embodiments, the present invention relates to in-situ continuous separation systems which use such redox-responsive polymers for low-molecular weight alcohol removal from an aqueous mixture; such systems enhance the production of low-molecular weight alcohols by reducing the product inhibition effects that plague their production from bio-mass by fermentation. | 09-02-2010 |
20100285081 | Bactericidal Nanofibers, and Methods of Use Thereof - One aspect of the invention relates to an antimicrobial fiber formed from an electroprocessed blend of at least one polymer, at least one antimicrobial agent, and at least one crosslinker. Another aspect of the invention relates to an antimicrobial fiber formed from an electroprocessed blend of at least one polymer and at least one crosslinker, which is then coated with an antimicrobial compound or antimicrobial polymer. | 11-11-2010 |
20110027869 | Compositions for Chemical and Biological Defense - One aspect of the present invention relates to reactive compositions and methods of use thereof, wherein a metal oxide cluster is used to connect a reactive group (or groups) to the surface of a substrate. In certain embodiments, the reactive group in the compositions decomposes organophosphate agents through nucleophilic hydrolysis. In certain embodiments, the reactive group in the compositions is bactericidal. Remarkably, the use of metal oxide clusters in the disclosed compositions and methods permits incorporation of higher quantities of nucleophilic and bactericidal groups without the difficulties associated with having to pretreat the substrate prior to its association with the reactive groups. | 02-03-2011 |
20110174720 | Multifunctional Electroprocessed Membranes - Described is the application of layer-by-layer (LbL) electrostatic assembly techniques to electrospun nanofibers in order to fabricate novel, breathable electrospun fiber-based chemical and biological detoxifying protective fabrics and filters. The combination of layer-by-layer electrostatic assembly and electrospinning technique allows one to take advantage of high specific surface area, light weight and breathability of electrospun fiber mats while simultaneously providing the versatility to incorporate different functional polyelectrolytes to achieve multifunctional coatings for both chemical and biological protection together. The functionalized fiber mats can be incorporated into breathable chemical and biological protective fabrics, filters and masks. In addition, LbL electrostatic coating of porous non-woven materials provides the versatility to generate multifunctional polymer-based membrane materials for other applications. | 07-21-2011 |
20120135080 | Core-Shell Magnetic Particles and Related Methods - The invention provides core-shell magnetic particles comprising a magnetic core and a functional shell, methods for making same, methods of separation using same, methods for using same, and devices comprising same. The particles and methods of the invention are useful for targeting and removing substances of interest that may be found in complex mixtures. | 05-31-2012 |
20130032160 | Porous Catalytic Matrices for Elimination of Toxicants Found in Tobacco Combustion Products - Described herein are compositions and methods for capturing carbonylic or phenolic toxicants, or converting these toxicants into less volatile compounds. The toxicants, which may be a component of cigarette smoke, may be captured by physical or chemical adsorption, absorption, or entrapment. | 02-07-2013 |
20130343969 | Particulate Materials for Uranium Extraction and Related Processes - Extraction method for recovering metals. Phosphoric acid is contacted with an extractant suspension of solid particulate material comprising a para- or ferromagnetic material core surrounded by an outer shell of a chelating polymer whereby a metal is the solution is adsorbed on the chelating polymer, thereby removing it from the phosphoric acid solution. The metal-containing solid particulate material is magnetically separated from the solution and the metal is stripped from the solid particulate material for reuse. | 12-26-2013 |
20140311507 | Porous Catalytic Matrices for Elimination of Toxicants Found in Tobacco Combustion Products - Described herein are compositions and methods for capturing carbonylic or phenolic toxicants, or converting these toxicants into less volatile compounds. The toxicants, which may be a component of cigarette smoke, may be captured by physical or chemical adsorption, absorption, or entrapment. | 10-23-2014 |
Patent application number | Description | Published |
20110142025 | Apparatus for generating at least one signal based on at least one aspect of at least two received signals - An apparatus for generating at least one signal based on at least one aspect of at least two received signals is provided. The apparatus comprises: an antennae array of M antennae, where M is greater than or equal to two; at least one multiple-input and multiple-output capable transceiver in communication with each antenna in the antennae array of M antennae; and processing circuitry, the processing circuitry in communication with the multiple-input and multiple-output capable transceiver. In operation, the processing circuitry is capable of causing the apparatus to: receive at least two first signals, combine at least two of the at least two first signals, generate at least two second signals based on at least one aspect of the at least two first signals, and simultaneously transmit the at least two second signals; wherein the apparatus is configured such that at least one of the at least two second signals is capable of being received by a multiple-input capable node. | 06-16-2011 |
20110142108 | Apparatus for Calculating Weights Associated with a First Signal and Applying the Weights to a Second Signal - An apparatus for calculating weights associated with a first signal and applying the weights to a second signal is provided. The apparatus comprises: at least two antennas; a multiple-input and multiple-output capable transceiver in communication with each of the at least two antennas; processing circuitry capable of causing diversity combining, the processing circuitry in communication with the multiple-input and multiple-output capable transceiver, the processing circuitry capable of causing the apparatus to: receive a first signal, calculate weights associated with the first signal, and apply the weights to transmit data. Additionally, the apparatus is configured such that the at least two antennas are capable of transmitting a second signal including the transmit data to a multiple-input capable node. | 06-16-2011 |
20110188597 | APPARATUS FOR GENERATING AT LEAST ONE DIVERSE SIGNAL BASED ON AT LEAST ONE ASPECT OF AT LEAST TWO RECEIVED SIGNALS - An apparatus for generating at least one signal based on at least one aspect of at least two received signals is provided. The apparatus comprises: a diverse antennae array of M antennae, where M is greater than or equal to two; at least one multiple-input and multiple-output capable transceiver in communication with each antenna in the diverse antennae array of M antennae; encoding circuitry capable of causing first data to be encoded; decoding circuitry capable of causing second data to be decoded; and processing circuitry capable of causing diversity combining, where the processing circuitry is in communication with the multiple-input and multiple-output capable transceiver, the encoding circuitry, and the decoding circuitry. In operation, the processing circuitry is capable of causing the apparatus to: receive at least two first signals, combine at least two of the at least two first signals, generate at least two second signals based on at least one aspect of the at least two first signals, and simultaneously transmit the at least two second signals. Additionally, the apparatus is configured such that at least one of the at least two second signals is capable of being received by a multiple-input capable node. | 08-04-2011 |
20110194591 | APPARATUS FOR TRANSMITTING A SIGNAL INCLUDING TRANSMIT DATA TO A MULTIPLE-INPUT CAPABLE NODE - An apparatus for transmitting a signal including the transmit data to a multiple-input capable node is provided. The apparatus comprises: at least two antennas; a multiple-input and multiple-output capable transceiver in communication with each of the at least two antennas; encoding circuitry capable of causing first data to be encoded; decoding circuitry capable of causing second data to be decoded; processing circuitry capable of causing diversity combining, the processing circuitry being in communication with the multiple-input and multiple-output capable transceiver, the encoding circuitry, and the decoding circuitry. In operation, the processing circuitry is capable of causing the apparatus to: receive a first signal, calculate weights associated with the first signal, apply the weights to transmit data, and add a cyclic prefix to the transmit data. Additionally, the apparatus is configured such that the at least two antennas are capable of transmitting a second signal including the transmit data to a multiple-input capable node. | 08-11-2011 |
20110255577 | Apparatus for calculating weights associated with a received signal and applying the weights to transmit data - An apparatus for calculating weights associated with a received signal and applying the weights to transmit data is provided. The apparatus comprises: at least two antennas; a multiple-input and multiple-output capable transceiver in communication with each of the at least two antennas; and processing circuitry capable of causing diversity combining, the processing circuitry in communication with the multiple-input and multiple-output capable transceiver. In operation, the processing circuitry is capable of causing the apparatus to: receive a first signal, calculate weights associated with the first signal, and apply the weights to transmit data. Additionally, the apparatus is configured such that the at least two antennas are capable of transmitting a second signal including the transmit data to a multiple-input capable node. | 10-20-2011 |
20110317683 | AAS DIRECT SIGNALING FRAMING METHODOLOGIES TO SUPPORT HIGH CAPACITY WIRELESS LINKS - A new frame structure applicable to the IEEE 802.16 OFDMA wireless waveform is described, for the purposes of increasing base station capacity, increasing subscriber link rates and extending base station range. The frame structure provides the necessary constructs so that advance signal processing technologies such as Stacked Carrier Spread Spectrum and adaptive antenna technology may be used in combination with these constructs in order to realize these gains. These concepts are equally applicable in other advanced wireless waveforms based on OFDM or OFDMA such as LTE or UMB. | 12-29-2011 |
20120320834 | Adaptive Communications Methods for Multiple User Packet Radio Wireless Networks - An exemplary wireless communication network that includes a base that communicates with remote units located in a cell of the network. The base concatenates information symbols with a preamble corresponding to a destination remote unit. One or more remote units communicating with the base each concatenates information symbols with a preamble corresponding to that remote unit. An adaptive receiver system for a base unit rapidly adapts optimal despreading weights for reproducing information symbols transmitted from multiple remote units. A transmitter system for a base unit concatenates information symbols with a preamble associated with a remote unit in the cell. An adaptive receiver system for a remote unit in a communication network rapidly adapts optimal weights for reproducing a signal transmitted to it by a specific base unit in the network. | 12-20-2012 |
20140056294 | AAS Direct Signaling Framing Methodologies to Support High Capacity Wireless Links - A new frame structure applicable to the IEEE 802.16 OFDMA wireless waveform is described, for the purposes of increasing base station capacity, increasing subscriber link rates and extending base station range. The frame structure provides the necessary constructs so that advance signal processing technologies such as Stacked Carrier Spread Spectrum and adaptive antenna technology may be used in combination with these constructs in order to realize these gains. These concepts are equally applicable in other advanced wireless waveforms based on OFDM or OFDMA such as LTE or UMB. | 02-27-2014 |
20140204984 | APPARATUS FOR CALCULATING WEIGHTS ASSOCIATED WITH A RECEIVED SIGNAL AND APPLYING THE WEIGHTS TO TRANSMIT DATA - An apparatus for modulating transmit data and adding a cyclic prefix to the transmit data is provided. The apparatus comprises: transceiver hardware that is capable of receiving receive data utilizing multiple input channels and includes at least one first wireless element that is orthogonal frequency division multiplexing-capable, and at least one second wireless element; and circuitry capable of working in association with the transceiver hardware. In operation, the apparatus is configured so as to cause transmission of at least one transmit signal including at least a portion of the transmit data to a node. The apparatus is further configured so as to allow adaptive routing utilizing another route different from a previous route. In addition, the apparatus is configured such that the adaptive routing includes allowing routing as a function of a link quality associated with at least one link. | 07-24-2014 |
20140206367 | METHOD AND APPARATUS FOR OPTIMIZATION OF WIRELESS MULTIPOINT ELECTROMAGNETIC COMMUNICATION NETWORKS - An apparatus is provided. The apparatus comprises: transceiver hardware that is capable of receiving data utilizing multiple simultaneously-received polarization diverse or spatial diverse channels and includes at least one receiver wireless element that is orthogonal frequency division multiplexing-capable and at least one transmitter wireless element; and circuitry capable of working in association with the transceiver hardware. In operation, the circuitry capable of causing the apparatus to: modulate transmit data; add a cyclic prefix to the transmit data; transmit at least one transmit signal including at least a portion of the transmit data to a node, where the apparatus includes a cellular mobile device and the node includes a cellular base station that is multiple-input-multiple-output capable; allow linkage between the cellular mobile device and the cellular base station utilizing a link; and based on a link quality of the link, allow linkage between the cellular mobile device and another cellular base station utilizing another link. | 07-24-2014 |
20140328423 | NETWORK COMMUNICATION USING DIVERSITY - An apparatus for generating at least one signal based on at least one aspect of at least two received signals is provided. The apparatus comprises: a diverse antennae array of M antennae, where M is greater than or equal to two; at least one multiple-input and multiple-output capable transceiver in communication with each antenna in the diverse antennae array of M antennae; encoding circuitry capable of causing first data to be encoded; decoding circuitry capable of causing second data to be decoded; and processing capable of causing diversity combining, where the processing circuitry is in communication with the multiple-input and multiple-output capable transceiver, the encoding circuitry, and the decoding circuitry. In operation, the processing circuitry is capable of causing the apparatus to: receive at least two first signals, combine at least two of the at least first two signals, generate at least two second signals based on at least one aspect of the at least two first signals, and simultaneously transmit the at least two second signals. Additionally, the apparatus is configured such that at least one of the at least two second signals is capable of being received by a multiple-input capable node. | 11-06-2014 |
20140376656 | NETWORK COMMUNICATION USING DIVERSITY - An apparatus for generating at least one signal based on at least one aspect of at least two received signals is provided. The apparatus comprises: a diverse antennae array of M antennae, where M is greater than or equal to two; at least one multiple-input and multiple-output capable transceiver in communication with each antenna in the diverse antennae array of M antennae; encoding circuitry capable of causing first data to be encoded; decoding circuitry capable of causing second data to be decoded; and processing capable of causing diversity combining, where the processing circuitry is in communication with the multiple-input and multiple-output capable transceiver, the encoding circuitry, and the decoding circuitry. In operation, the processing circuitry is capable of causing the apparatus to: receive at least two first signals, combine at least two of the at least first two signals, generate at least two second signals based on at least one aspect of the at least two first signals, and simultaneously transmit the at least two second signals. Additionally, the apparatus is configured such that at least one of the at least two second signals is capable of being received by a multiple-input capable node. | 12-25-2014 |
20140376657 | NETWORK COMMUNICATION USING DIVERSITY - An apparatus for generating at least one signal based on at least one aspect of at least two received signals is provided. The apparatus comprises: a diverse antennae array of M antennae, where M is greater than or equal to two; at least one multiple-input and multiple-output capable transceiver in communication with each antenna in the diverse antennae array of M antennae; encoding circuitry capable of causing first data to be encoded; decoding circuitry capable of causing second data to be decoded; and processing capable of causing diversity combining, where the processing circuitry is in communication with the multiple-input and multiple-output capable transceiver, the encoding circuitry, and the decoding circuitry. In operation, the processing circuitry is capable of causing the apparatus to: receive at least two first signals, combine at least two of the at least first two signals, generate at least two second signals based on at least one aspect of the at least two first signals, and simultaneously transmit the at least two second signals. Additionally, the apparatus is configured such that at least one of the at least two second signals is capable of being received by a multiple-input capable node. | 12-25-2014 |
20150188604 | Adaptive Transmission Methods for Multiple User Wireless Networks - An exemplary wireless communication network that includes a base that communicates with remote units located in a cell of the network. The base concatenates information symbols with a preamble corresponding to a destination remote unit. One or more remote units communicating with the base each concatenates information symbols with a preamble corresponding to that remote unit. An adaptive receiver system for a base unit rapidly adapts optimal despreading weights for reproducing information symbols transmitted from multiple remote units. A transmitter system for a base unit concatenates information symbols with a preamble associated with a remote unit in the cell. An adaptive receiver system for a remote unit in a communication network rapidly adapts optimal weights for reproducing a signal transmitted to it by a specific base unit in the network. | 07-02-2015 |
20150271004 | NETWORK COMMUNICATION USING SELECTED RESOURCES - Methods and systems are described for transmitting data using various selected resources. For example, first one or more resources may be selected based at least in part on feedback from a first network node. A second network node may cause first data to be transmitted using the selected one or more resources. The second network node may also cause second data to be transmitted using second one or more resources. The resources may comprise, for example, tones, time slots, time-frequency channels, time resources, and/or frequency resources. | 09-24-2015 |
20160087767 | ORIGINATOR AND RECIPIENT BASED TRANSMISSIONS IN WIRELESS COMMUNICATIONS - Methods and systems are described for determining a plurality of transmission levels for, e.g., a plurality of time-frequency channels and/or a plurality of tones. The transmission levels may be determined by a first node based on, for example, a received transmission from a second node. The first node may generate a signal, which may be based on, for example, an originator-based pseudorandom sequence, a recipient-based pseudorandom sequence, and/or a complex sinusoid. The first node may transmit the signal as an orthogonal frequency division multiplexing (OFDM) transmission. | 03-24-2016 |