Patent application number | Description | Published |
20140079248 | Systems and Methods for Source Signal Separation - A method of processing a signal, including taking a signal formed from a plurality of source signal emitters and expressed in an original domain, decomposing the signal into a mathematical representation of a plurality of constituent elements in an alternate domain, analyzing the plurality of constituent elements to associate at least a subset of the constituent elements with at least one of the plurality of source signal emitters, separating at least a subset of the constituent elements based on the association and reconstituting at least a subset of constituent elements to produce an output signal in at least one of the original domain, the alternate domain and another domain. | 03-20-2014 |
20140163991 | SYSTEMS AND METHODS FOR SOURCE SIGNAL SEPARATION - A method of processing a signal, including taking a signal formed from a plurality of source signal emitters and expressed in an original domain, decomposing the signal into a mathematical representation of a plurality of constituent elements in an alternate domain, analyzing the plurality of constituent elements to associate at least a subset of the constituent elements with at least one of the plurality of source signal emitters, separating at least a subset of the constituent elements based on the association and reconstituting at least a subset of constituent elements to produce an output signal in at least one of the original domain, the alternate domain and another domain. | 06-12-2014 |
20140316771 | SYSTEMS AND METHODS FOR SOURCE SIGNAL SEPARATION - A method includes receiving an input signal comprising an original domain signal and creating a first window data set and a second window data set from the signal, wherein an initiation of the second window data set is offset from an initiation of the first window data set, converting the first window data set and the second window data set to a frequency domain and storing the resulting data as data in a second domain different from the original domain, performing complex spectral phase evolution (CSPE) on the second domain data to estimate component frequencies of the first and second window data sets, using the component frequencies estimated in the CSPE, sampling a set of second-domain high resolution windows to select a mathematical representation comprising a second-domain high resolution window that fits at least one of the amplitude, phase, amplitude modulation and frequency modulation of a component of an underlying signal wherein the component comprises at least one oscillator peak, generating an output signal from the mathematical representation of the original signal as at least one of: an audio file; one or more audio signal components; and one or more speech vectors and outputting the output signal to an external system. | 10-23-2014 |
20150287422 | METHODS AND SYSTEMS FOR IMPROVED MEASUREMENT, ENTITY AND PARAMETER ESTIMATION, AND PATH PROPAGATION EFFECT MEASUREMENT AND MITIGATION IN SOURCE SIGNAL SEPARATION - A method of processing a signal includes taking a signal recorded by a plurality of signal recorders, applying at least one super-resolution technique to the signal to produce an oscillator peak representation of the signal comprising a plurality of frequency components for a plurality of oscillator peaks, computing at least one Cross Channel Complex Spectral Phase Evolution (XCSPE) attribute for the signal to produce a measure of a spatial evolution of the plurality of oscillator peaks between the signal, identifying a known predicted XCSPE curve (PXC) trace corresponding to the frequency components and at least one XCSPE attribute of the plurality of oscillator peaks and utilizing the identified PXC trace to determine a spatial attribute corresponding to an origin of the signal. | 10-08-2015 |
20160071528 | SYSTEMS AND METHODS FOR SOURCE SIGNAL SEPARATION - A method includes receiving an input signal comprising an original domain signal and creating a first window data set and a second window data set from the signal, wherein an initiation of the second window data set is offset from an initiation of the first window data set, converting the first window data set and the second window data set to a frequency domain and storing the resulting data as data in a second domain different from the original domain, performing complex spectral phase evolution (CSPE) on the second domain data to estimate component frequencies of the first and second window data sets, using the component frequencies estimated in the CSPE, sampling a set of second-domain high resolution windows to select a mathematical representation comprising a second-domain high resolution window that fits at least one of the amplitude, phase, amplitude modulation and frequency modulation of a component of an underlying signal wherein the component comprises at least one oscillator peak, generating an output signal from the mathematical representation of the original signal as at least one of: an audio file; one or more audio signal components; and one or more speech vectors and outputting the output signal to an external system. | 03-10-2016 |
Patent application number | Description | Published |
20110275062 | Systems And Methods For Integrating A Single DNA Molecule Into A Molecular Electronic Device - The disclosed subject matter provides a techniques for precisely and/or functionally cutting carbon nanotubes, e.g., single walled carbon nanotubes (“SWNTs”) and integrating a single nucleic acid molecule (e.g., a DNA molecule) into a gap formed into the carbon nanotubes. In one aspect, a method of fabricating a molecular electronic device includes disposing a SWNT on a base layer, forming a gap in the SWNT using a lithographic process, and disposing a single DNA strand across the gap so that each end of the nucleic acid contacts a gap termini. The disclosed subject matter also provides techniques for measuring the electrical properties (charge transport) of a DNA molecule which is integrated into an SWNT. Furthermore, a molecular electronic device including an SWNT with an integrated nucleic acid molecule is disclosed. | 11-10-2011 |
20120107562 | METHODS FOR GRAPHENE-ASSISTED FABRICATION OF MICRO-AND NANOSCALE STRUCTURES AND DEVICES FEATURING THE SAME - Methods for graphene-assisted fabrication of a surface on a substrate are disclosed herein. In an exemplary method, fabricating an etched surface on a substrate includes, depositing at least one layer of graphene on the surface on the substrate, patterning the deposited layer of graphene, and exposing the surface on a substrate to an acid to etch the surface on the substrate. The method can further include forming the layer of graphene from graphite. In some embodiments, the layer of graphene is formed by mechanically exfoliating the layer of graphene from the graphite. Alternatively, the layer of graphene can be formed by chemically exfoliating the graphene from the graphite, or other carbon materials, and/or utilizing vapor deposition to form the layer of graphene from the graphite, or other carbon materials. | 05-03-2012 |
20120206012 | ELECTROMECHANICAL DEVICES AND METHODS FOR FABRICATION OF THE SAME - A fabricated electromechanical device is disclosed herein. An exemplary device includes, a substrate, at least one layer of a high-transconductance material separated from the substrate by a dielectric medium, a first electrode in electrical contact with the at least one layer of a high-transconductance material and separated from the substrate by at least one first supporting member, a second electrode in electrical contact with the layer of a high-transconductance material and separated from the substrate by at least one second supporting member, where the first electrode is electrically separate from the second electrode, and a third electrode separated from the at least one layer of high-transconductance material by a dielectric medium and separated from each of the first electrode and the second electrode by a dielectric medium. | 08-16-2012 |
20150020610 | TWO DIMENSIONAL MATERIAL-BASED PRESSURE SENSOR - This disclosure provides example methods, devices, and systems for a two dimensional material-based pressure sensor. A sensor device is provided that includes a substrate having a back electrode, a conductive layer in communication with the back electrode, and an insulating layer coupled to the conductive layer. The insulating layer includes one or more cavity regions. A sensor membrane comprising a two-dimensional material is disposed adjacent to the insulating layer and covering at least one of the one or more cavity regions. A first sensing electrode is in electrical communication with a first region of the sensor membrane, and a second sensing electrode is in communication with a second region of the sensor membrane. The sensor membrane is configured to respond to pressure changes exerted on the sensor device. | 01-22-2015 |
20150194991 | GRAPHENE RESONATOR BASED MIXER-FIRST RECEIVER ON CMOS FOR DIGITALLY CONTROLLED AND WIDELY TUNABLE RF INTERFACE - A radio frequency (RF) receiver including a baseband circuitry. The baseband circuitry can include a graphene nano-electro-mechanical (GNEMS) based system, a receiver, and a front-end mixer. The GNEMS based system can include a source, a drain, a gate and a nano-scale suspended graphene resonator. The graphene resonator can be suspended between the source and the drain. The receiver circuitry can be disposed on the baseband and configured to receive an RF signal. The front-end mixer can be disposed between the GNEMS based system and the receiver circuitry. The baseband circuitry can be configured such that an incoming signal sees frequency selective impedance at the receiver circuitry. | 07-09-2015 |
20150362521 | TWO-DIMENSIONAL MATERIAL-BASED ACCELEROMETER - This disclosure provides systems and methods for a two-dimensional material-based accelerometer. In one embodiment, an accelerometer comprises a substrate; a membrane suspended over an opening in the substrate to form a suspended membrane, wherein the membrane is composed of a two-dimensional material; a mass structure coupled to the suspended membrane; and wherein the mass structure distorts the suspended membrane about a first axis in response to an applied acceleration providing a first change in a conductance of the suspended membrane so that the applied acceleration along the first axis can be detected. | 12-17-2015 |
20160052783 | ELECTROMECHANICAL DEVICES AND METHODS FOR FABRICATION OF THE SAME - A fabricated electromechanical device is disclosed herein. An exemplary device includes, a substrate, at least one layer of a high-transconductance material separated from the substrate by a dielectric medium, a first electrode in electrical contact with the at least one layer of a high-transconductance material and separated from the substrate by at least one first supporting member, a second electrode in electrical contact with the layer of a high-transconductance material and separated from the substrate by at least one second supporting member, where the first electrode is electrically separate from the second electrode, and a third electrode separated from the at least one layer of high-transconductance material by a dielectric medium and separated from each of the first electrode and the second electrode by a dielectric medium. | 02-25-2016 |
Patent application number | Description | Published |
20090038681 | Ozone-treated carbon electrodes - Ozone treated carbon electrodes can provide increased catalytic activity, such as in a dye-sensitized solar cell (DSSC) or other electrochemical device or other device that could benefit from an increased catalytic activity, such as lithium ion or other batteries, hydrogen fuel cells, or electroanalytical instruments. Devices, methods of making, and methods of using are discussed. | 02-12-2009 |
20110185458 | FORCE, PRESSURE, OR STIFFNESS MEASUREMENT OR CALIBRATION USING GRAPHENE OR OTHER SHEET MEMBRANE - Force, pressure, or stiffness measurement or calibration can be provided, such as by using a graphene or other sheet membrane, which can provide a specified number of monolayers suspended over a substantially circular well. In an example, the apparatus can include a substrate, including a substantially circular well. A deformable sheet membrane can be suspended over the well. The membrane can be configured to include a specified integer number of one or more monolayers. A storage medium can comprise accompanying information about the suspended membrane or the substrate that, with a deflection displacement response of the suspended membrane to an applied force or pressure, provides a measurement of the applied force or pressure. | 07-28-2011 |
20110268884 | FORMATION OF NANOSCALE CARBON NANOTUBE ELECTRODES USING A SELF-ALIGNED NANOGAP MASK - A first single-wall carbon nanotube can be electrically coupled to a first electrode, and a second single-wall carbon nanotube electrically coupled to a second electrode. In an example, the first and second single-wall carbon nanotubes are laterally separated by a nanoscale gap, such as sized and shaped for insertion of a single molecule. | 11-03-2011 |
20130294972 | ZERO-MODE WAVEGUIDE FOR SINGLE BIOMOLECULE FLUORESCENCE IMAGING - The disclosed subject matter provides a zero-mode waveguide (ZMW) including a substrate and at least one nano-well thereon and having a bottom surface and a side wall comprising gold. A surface of the side wall is passivated with a first functional molecule comprising polyethylene glycol. The bottom surface of the nano-well can be functionalized with at least one second molecule comprising polyethylene glycol, for example, a silane-PEG molecule. The second molecule can further include a moiety, such as biotin, which is capable of binding a target biomolecule, which in turn can bind to a biomolecule of interest for single molecule fluorescence imaging analysis. Fabrication techniques of the ZMW are also provided. | 11-07-2013 |
20140299839 | ELECTRICAL DEVICES WITH GRAPHENE ON BORON NITRIDE - Methods of forming and resulting devices are described that include graphene devices on boron nitride. Selected methods of forming and resulting devices include graphene field effect transistors (GFETs) including boron nitride. | 10-09-2014 |
20150023840 | Functionalized Surfaces and Methods Related Thereto - The disclosed subject matter provides a nanoaperture having a bottom surface and a side wall comprising gold. A surface of the side wall is passivated with a first functional molecule comprising polyethylene glycol. The bottom surface of the nanoaperture can be functionalized with at least one second molecule comprising polyethylene glycol, for example, a silane-PEG molecule. The second molecule can further include a moiety, such as biotin, which is capable of binding a target biomolecule, which in turn can bind to a biomolecule of interest for single molecule fluorescence imaging analysis. Fabrication techniques of the nanoaperture are also provided. | 01-22-2015 |
Patent application number | Description | Published |
20080317960 | Dispersant for Reducing Viscosity of Solids - The invention provides a dispersant for an aqueous dispersion of negatively charged or chargeable solid particulates which comprises a compound having an anchoring moiety linked to a polymeric hydrophilic moiety, the anchoring moiety containing at least one basic group and having an overall basicity and the polymeric moiety having a lower affinity for the particulate surface than the anchoring moiety. The invention also provides a coating composition containing the dispersant, an inkjet recording element containing the dispersant and methods of coating or reducing viscosity using the dispersant. | 12-25-2008 |
20100068387 | INK FOR PRINTING ON LOW ENERGY SUBSTRATES - The invention provides an aqueous inkjet ink composition comprises a polymeric compound comprising discrete particles responsive to an external stimulus, and a functional material, wherein the functional material may be incorporated as part of the polymeric particles, the particles causing the composition to have a first rheological state and a different second rheological state in response to a stimulated change in conditions, the first rheological state being associated with a first lower viscosity of the composition, wherein the particles have a first lower volume, enabling the composition to pass through an inkjet printhead orifice and the second rheological state being associated with a second higher viscosity of the composition, wherein the particles have a second higher volume, enabling immobilisation of droplets of the composition on a substrate. The inkjet composition is particularly useful in a continuous inkjet printing system for printing onto a wide range of surfaces including impermeable surfaces. | 03-18-2010 |
20100184910 | THERMALLY-RESPONSIVE DISPERSANTS FOR MEDIA FORMULATIONS - A thermally-responsive dispersant for an aqueous dispersion of positively- or negatively-charged or chargeable solid or liquid particulate, comprises a compound having an anchoring moiety linked to a thermally-responsive polymeric stabilizing moiety, other than a polyalkylene oxide, the polymeric moiety having a lower affinity for the surface than the anchoring group below the thermal transition temperature, the particulates being positively-charged or chargeable when the anchoring moiety contains an acid and/or hydroxy group and has a net acidity or neutrality and the particulates being negatively-charged or chargeable when the anchoring moiety has a basic group and has a net basicity, wherein the dispersion exhibits a change in sign from negative to positive and an increase in magnitude of a rheological property (viscosity at low shear and/or complex modulus at low amplitude oscillatory shear), on increasing the temperature from below to above the thermal transition temperature. | 07-22-2010 |
Patent application number | Description | Published |
20090046824 | NUCLEAR REACTOR ROBUST GRAY CONTROL ROD - A control rod having a lower tip absorber material which exhibits substantially lower irradiation induced swelling than a second absorber material which extends above the lower tip absorber material. The lower tip absorber material having a substantially lower reactivity worth than the second absorber material, extends from a lower end plug of the control rod to an elevation just above a dashpot in a thimble guide tube in a nuclear fuel assembly when the control rod is fully inserted within the thimble guide tube. | 02-19-2009 |
20110170652 | NEUTRON ABSORBER CONSISTING OF REFRACTORY METAL INFUSED WITH DISCRETE NEUTRON ABSORBER - The present invention provides a gray rod control assembly (GRCA) containing an improved neutron absorber comprised of a porous matrix of refractory metal infused with a neutron absorbing metal or metal alloy for a nuclear reactor. The reactor has a plurality of fuel assemblies, each including numerous elongated fuel rods supported in an organized array by substantially transverse support grids, and a plurality of guide thimbles disposed through the support grids and along the fuel rods. The GRCA includes a spider assembly structured to provide controlled insertion of gray rod assemblies within the thimbles of the fuel assembly, thereby controlling the rate of power produced by the reactor. Each gray rod assembly includes an elongated tubular member, a first end plug, a second end plug and the improved neutron-absorber disposed within the tubular member. Delta-power of the reactor is improved by the relatively small percentage of neutron absorbing metal infused in the porous matrix of the refractory metal of the neutron absorber and by distributing the neutron absorber in segments among a plurality of rods of the GRCA. | 07-14-2011 |
20120281805 | NEUTRON ABSORBER CONSISTING OF REFRACTORY METAL INFUSED WITH DISCRETE NEUTRON ABSORBER - The present invention provides a gray rod control assembly for a nuclear reactor. The gray rod control assembly includes a spider assembly having a plurality of radial extending flukes and a plurality of gray rod assemblies coupled to the flukes of the spider assembly. Each of the gray rod assemblies includes an elongated tubular member, a first end plug, a second end plug, and a neutron absorber. The neutron absorber includes a matrix of refractory metal fabricated to be porous into which a metal or metal alloy is infused. The neutron absorber is distributed among a plurality of the gray rod assemblies. | 11-08-2012 |