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| Number | Title | Issue Date |
| 8185261 | Systems and methods for attitude propagation for a slewing angular rate vector Computer-based systems and methods for determining attitude of a moveable object. Attitude is determined by a transformation matrix {right arrow over (U)} from a body coordinate frame of the moveable object to an inertial reference frame. The transformation matrix i... | 05/22/2012 |
| 8180505 | Spacecraft solar cell monitoring system An onboard solar cell array current and voltage characteristic determination method is preferably used on small spacecraft and determines the solar cell orientation relative to the sun by a comparison between prelaunch solar cell characteristics with on-orbit solar ... | 05/15/2012 |
| 8156964 | Fast acting valve apparatuses Embodiments of valve apparatuses are described. ... | 04/17/2012 |
| 8138476 | Refraction assisted illumination for imaging Various embodiments are directed to systems and methods of imaging subsurface features of objects. An illumination source may be directed towards a surface of an object comprising subsurface features at a first angle relative to the normal of the surface. The object... | 03/20/2012 |
| RE43224 | Data aided symbol timing system for precoded continuous phase modulated signals Data aided carrier phase and symbol timing synchronizers are implemented at baseband as digital modulators isolating input signal inphase and quadrature component signals fed into inphase and quadrature Laurent transforms that function as data detector to provide od... | 03/06/2012 |
| 8090055 | Binary continuous phase modulation (CPM) data demodulation receiver A communications receiver receives a received continuous phase modulation (CPM) signal having an original modulation index of h and includes a filter, a continuous phase reconstructor using phase unwrapping, and a modulation index scaler for generating a reconstruct... | 01/03/2012 |
| 8085304 | Photographic silver emulsion-based digital archival storage A photographic digital data archival apparatus includes an article of media that includes a substrate and one or more layers of silver-emulsion based light-sensitive material, the article of media being configured to store digital data in the one or more layers and ... | 12/27/2011 |
| 8068278 | Photostructured imaging display panels Photostructurable glass and ceramic materials in slabs are processed into pixelized screens having opaque baffles therein for defining therebetween light pipes in the material through which pixel light is passed and directed with limited fields of view and for stere... | 11/29/2011 |
| 8066031 | Electro-hydraulic devices A microfluidic device includes a substrate including multiple electro-hydraulic valves and/or electro-hydraulic pumps that each include a flow channel and one or more hydraulic control channels, actuators for controlling the electro-hydraulic valves and/or electro-h... | 11/29/2011 |
| 8050301 | Systems and methods for stabilizing laser frequency based on an isoclinic point in the absorption spectrum of a gas Systems and methods for stabilizing laser frequency based on an isoclinic point of an atomic or molecular medium are provided herein. A system may include: a transmission cell containing a gas and configured to transmit light from the laser, the gas having an absorp... | 11/01/2011 |
| RE42884 | Turbo decoding system using nth root metrics for non-Gaussian communication channels An nth root transformation is used for generating near Gaussian metrics from non-Gaussian metrics for input into a conventional turbo decoder that is based on the assumption that the input sequence to the decoder has a Gaussian distribution. The nth root transformat... | 11/01/2011 |
| 8027413 | Ultratight coupling prefilter detection block An observation lock detector block receives I&Q correlations and generates error measurement vectors, each including phase, frequency, code, pseudorange, and covariance residual estimates, and generates validity indicator and confidence indicator vectors, one of whi... | 09/27/2011 |
| 8026837 | Systems and methods for converting wideband signals in the optical domain Systems and methods for converting wideband signals in the optical domain are provided. A device for obtaining a digital representation of a received signal may include a spatially dispersive element that may be configured to spatially disperse frequencies in an opt... | 09/27/2011 |
| 8012326 | Conducting polymer nanofiber sensors Polymer nanofibers, such as polyaniline nanofibers, with uniform diameters less than 500 nm can be made in bulk quantities through a facile aqueous and organic interfacial polymerization method at ambient conditions. The nanofibers have lengths varying from 500 nm t... | 09/06/2011 |
| 8009716 | Plasmon stabilized unimodal laser diodes A device having a light cavity includes, at one end, a plasmonic reflector having a grating surface for coupling incoming light into traverse plasmon waves and for coupling the traverse plasmon wave into broaden light, the surface serving to redistribute light withi... | 08/30/2011 |
| 7970084 | Communications adaptive automatic gain controller An adaptive scaling processor operates in combination with a conventional automatic gain control controller providing an amplification gain A to m-ary symbol-modulated communication signals, the scaling processor scaling by a scaling factor Z the m-ary communication... | 06/28/2011 |
| 7965228 | Quasi-compact range An antenna method and system to implement a quasi-compact range technique/technology in which a reflector antenna is used to produce a test field within a test region at a quasi-compact range, which is within a near-field of the reflector antenna but further from th... | 06/21/2011 |
| 7964991 | Converter channelized uniform power distribution system A channelized uniform distribution power system controls individual channels of power converters with each channel of power converters having uniform output power as the channels are controlled by voltage control signals from respective controllers that are intercon... | 06/21/2011 |
| RE42472 | Main beam alignment verification for tracking antennas A method for main beam alignment verification includes providing data pertaining to one or more patterns associated with an antenna, measuring power levels of a signal acquired by the antenna, and comparing the measured power levels with the data to determine whethe... | 06/21/2011 |
| 7961995 | Electrically tunable plasmon light tunneling junction An electrically modulated plasmonic junction generates surface plasmons from an electrical signal from an electrical source, with the tunnel junction having a contact with a tapered end forming the junction in a gap between the contact and a substrate, with the gap ... | 06/14/2011 |
| 7960753 | Surface plasmon polariton actuated transistors A surface plasmon polaritron activated semiconductor device uses a surface plasmon wire that functions as an optical waveguide for fast communication of a signal and functions as a energy translator using a wire tip for translating the optical signal passing through... | 06/14/2011 |
| 7958719 | Noncircular transient fluid fuel injector control channels in propellant injector combustion systems A fuel injector system for combustion engines and motors, such as pulsed bipropellant thrusters, includes noncircular fuel and oxidizer injectors at the ends of respective dribble channels for controlling the mixture ratio of the propellants passing into a combustio... | 06/14/2011 |
| 7956761 | Infrared gas detection and spectral analysis method A gas detection system and method for analysis of infrared gas spectra is used for chemical threat detection, quantification and alarm, using a chemical library, a chemical threat list, and a background model that incorporates the data history, allows spectra contai... | 06/07/2011 |
| 7944997 | GPS M-code receiver tracking system An m-code GPS receiver receives m-code GPS communication signals having a multimodal autocorrelation, using an m-code mode identifier unambiguously determining a mode value of one of the m-code modal peaks coherently aligned to a coherent unimodal detected envelope,... | 05/17/2011 |
| 7899109 | GPS m-code receiver tracking system An m-code GPS receiver receives m-code GPS communication signals having a multimodal autocorrelation, using an m-code mode identifier unambiguously determining a mode value of one of the m-code modal peaks coherently aligned to a coherent unimodal detected envelope,... | 03/01/2011 |
| 7847597 | Precision frequency change detector A frequency change detector splits a frequency standard signal into two undelayed frequency signals, one of which is delayed by a predetermined amount. The delayed signal is then mixed with the undelayed frequency signal into a mixed signal that is further filtered ... | 12/07/2010 |
| 7864887 | Noncoherent symbol clock recovery subsystem A symbol clock recovery subsystem uses a tap delay line having a set of delays, uses a clock bank of samplers providing time-staggered sampled noncoherently received signals, and uses a set of mean magnitude generators, in channelized form, for providing a set of me... | 01/04/2011 |
| 7861538 | Thermoelectric-based refrigerator apparatuses A refrigerator apparatus includes a housing with an interior chamber, thermoelectric devices that are thermally coupled to the interior chamber, and dual redundant electronics configured to generate and apply input power to the thermoelectric devices. ... | 01/04/2011 |
| 7856067 | Unequal hierarchical communications modulation method Hierarchical modulation preferably uses a 16-ary quadrature amplitude modulation (QAM) modulator with a convolutional encoder that combine to effectively provide unequal protection to two different segments of streaming input data, with improved power efficiency wit... | 12/21/2010 |
| 7815146 | Combustible outgassing material lined altitude compensating rocket nozzle A fixed sized bell rocket nozzle is lined with a layer of combustible material that is ignited during launch ignition and burns to outgas into the rocket exhaust for spatially variably confining the exhaust and perfecting an effective variably sized altitude compens... | 10/19/2010 |
| 7805476 | Extended Haar transform A shared lossless Haar transform and an appended Haar transform are combined to form a lossless extended Haar transform in a pipeline architecture for providing fast lossless compressed data that is reversible. The extended Haar transform also provide intrinsic deco... | 09/28/2010 |
| 7800537 | System and method for antenna tracking A method includes determining if a dynamics requirement for an antenna positioner is exceeded, and employing a combination of mechanical and electronic beam steering techniques to steer a single antenna beam if the dynamics requirement is exceeded. ... | 09/21/2010 |
| 7792321 | Hypersensor-based anomaly resistant detection and identification (HARDI) system and method A method for anomaly resistant detection and identification of an object signature in hypersensor data includes processing hypersensor data using a multi-dimensional matched filter to distinguish spectra that produce anomaly-generated false alarms from target spectr... | 09/07/2010 |
| 7791797 | Peripheral filtering lens A filter or lens for a star tracking telescope includes a clear center portion and an attenuating peripheral portion where the peripheral portion attenuation of off-axis images is nonidentical through any radial line extending from a center of the filter or lens to ... | 09/07/2010 |
| 7790243 | Method for producing large-diameter 3D carbon nano-onion structures at room temperature A method includes imparting energy to a target in an oxygen-containing atmosphere at room temperature to provide a substrate facing the target with a carbonaceous coating that includes nested carbon structures. ... | 09/07/2010 |
| RE41607 | Data aided symbol timing system for precoded continuous phase modulated signals Data aided carrier phase and symbol timing synchronizers are implemented at baseband as digital modulators isolating input signal inphase and quadrature component signals fed into inphase and quadrature. Laurent transforms that function as data detector to provide o... | 08/31/2010 |
| 7773395 | Uniform converter input voltage distribution power system A uniform converter input voltage distribution power system evenly controls the individual input voltages of DC-to-DC series-input parallel-output connected converters using a uniform input voltage distribution controller including a generator for generating respect... | 08/10/2010 |
| 7757717 | Microfluidic devices with separable actuation and fluid-bearing modules A fluid transport/containment apparatus includes a fluid-bearing module and an actuation module. The fluid-bearing module includes a substrate and fluid transport/containment elements distributed therein, with one or more of the fluid transport/containment elements ... | 07/20/2010 |
| 7757716 | Microfluidic valve apparatuses with separable actuation and fluid-bearing modules A valve apparatus includes a fluid-bearing module and an actuation module. The fluid-bearing module includes a substrate and a channel formed in the substrate, the channel having microfluidic dimensions. The actuation module is detachably secured to the fluid-bearin... | 07/20/2010 |
| 7757476 | Catalytically activated transient decomposition propulsion system A catalytically activated transient decomposition propulsion system provides thrust by decomposing flow controlled propellant in contact with a catalyzing agent using a fixed volume of liquid propellant that is placed in contact with the catalyst within the decompos... | 07/20/2010 |
