Abstract: Disclosed is a lidar sensor system, including: a transmission unit including one DV lens which emits laser light to a front area of a vehicle, and two SV lenses which emit laser light to left and right side areas of the vehicle; and a reception unit including one DV reception lens which receives light reflected from the front area of the vehicle, and two SV reception lenses which receive light reflected from the left and right side areas of the vehicle.

Abstract: Described is a technology by which GPS-capable devices work with a cloud service to receive satellite visibility-related data. The satellite visibility-related data may be used to determine a location, and/or to abort a search for satellites. The cloud service may use crowd data from other GPS-capable devices. In one aspect, line-of-sight satellites are differentiated from other satellites, and used to determine which satellite signals are more trustworthy. Reflected signals also may be determined.

Abstract: A fleet of small spacecraft (“cells”) in low Earth orbit combine to form an integrated Earth observing system providing many observations previously requiring distinct sensing systems. Each cell performs a few relatively primitive functions, including emission, reception, sampling, and recording of radio and microwave signals. Each cell observes over a spherical field of view, samples the received signals independently at many small antenna elements, and stores the data from each element. Data from all cells are sent to a common location where they can be combined in diverse ways to realize a wide range of observing functions. These functions may include ionosphere and gravity field mapping; atmospheric radio occultation; ocean, ice, and land altimetry; ocean scatterometry; synthetic aperture radar (SAR) imaging; radar sensing of soil moisture, land cover, and geological surface properties; and interferometric SAR sensing of surface change.

Abstract: The present invention relates to a system and method using hybrid spectral compression and cross correlation signal processing of signals of opportunity, which may include Global Navigation Satellite System (GNSS) as well as other wideband energy emissions in GNSS obstructed environments. Combining spectral compression with spread spectrum cross correlation provides unique advantages for positioning and navigation applications including carrier phase observable ambiguity resolution and direct, long-code spread spectrum signal acquisition. Alternatively, the present invention also provides unique advantages for establishing the validity of navigation signals in order to counter the possibilities of electronic attack using spoofing and/or denial methods.

Abstract: A method of generating a correlation function for a CBOC(6,1,1/11) signal according to the present invention includes generating a delayed signal delayed based on a phase delay, with respect to a signal pulse train of a CBOC(6,1,1/11)-modulated received signal, generating first to twelfth partial correlation functions by performing an autocorrelation operation of the received signal and the delayed signal with respect to a total time, generating a basic intermediate correlation function by performing an elimination operation on sixth and seventh partial correlation functions, acquiring first to fifth and eighth to twelfth additional intermediate correlation functions by performing an elimination operation on each of partial correlation functions, excluding the sixth and seventh partial correlation functions from the first to twelfth partial correlation functions, and a basic intermediate correlation function, and acquiring the main correlation function by simply summing the basic intermediate correlation func

Abstract: A steering actuator system to be mounted to the steering wheel and steering column of a vehicle. The steering actuator system includes a flat baseplate with multiple adjustable sliders. These sliders slide along channel guides within the flat baseplate to accommodate steering wheels of varying sizes. The system includes a gear which mounts below the steering wheel, possibly around the steering column of the vehicle. A steering actuator powered by a motor or some other power source is connected to the gear and when activated can actively steer the vehicle. When connected to a guidance system, the vehicle can automatically be guided and steered via the guidance system and the steering actuator system. This provides a convenient way to add automatic steering to any vehicle with a steering wheel.

Abstract: An imaging system (100) includes a direct conversion detector pixel (111) that detects radiation traversing an examination region and generates an electrical signal indicative thereof, wherein the signal includes a persistent current, which is produced by a direct conversion material of the pixel and which shifts a level of the signal. A persistent current estimator (116) estimates the persistent current and generates a compensation signal based on the estimate. A pre-amplifier (112) receives the signal and the compensation signal, wherein the compensation signal substantially cancels the persistent current, producing a persistent current compensated signal, and that amplifies the compensated signal, generating an amplified compensated signal. A shaper (114) generates a pulse indicative of energy of the radiation illuminating the direct conversion material based on the amplified compensated signal.

Abstract: A method and apparatus for measuring the concentrations of radioxenon isotopes in a gaseous sample wherein the sample cell is surrounded by N sub-detectors that are sensitive to both electrons and to photons from radioxenon decays. Signal processing electronics are provided that can detect events within the sub-detectors, measure their energies, determine whether they arise from electrons or photons, and detect coincidences between events within the same or different sub-detectors. The energies of detected two or three event coincidences are recorded as points in associated two or three-dimensional histograms. Counts within regions of interest in the histograms are then used to compute estimates of the radioxenon isotope concentrations.

Abstract: An apparatus for reading out X-ray information stored in a storage phosphor layer includes a light source for generating stimulating light which can stimulate the storage phosphor layer to emit stimulated emission, an optical fiber, in particular a single mode fiber, which is optically coupled to the light source and generates a stimulating light beam from the stimulating light, and a deflection element for deflecting the stimulating light beam to move over the storage phosphor layer.

Abstract: The present invention provides a scintillator panel which is capable of utilizing light emitted by a phosphor at a high efficiency due to particles having a high refractive index being dispersed within a scintillator layer in a favorable state, which thus allows for a marked reduction in the amount of radiation exposure to a subject or the like, and which has a high luminance. The present invention also provides a scintillator panel including a substrate, and a scintillator layer containing metal compound particles and a phosphor, wherein the phosphor is covered by the metal compound at a coverage ratio of 5% or more.

Abstract: A radiation detector 1 includes a Peltier device (electronic cooling unit) for cooling a radiation detecting element, and the heat releasing part of the Peltier device is in thermal contact with a cold finger (thermally conductive part). The cold finger is made of a material with higher thermal conductivity than that of the base, and penetrates the base. The heat from the radiation detecting element is conducted from the heat releasing part of the Peltier device to the cold finger, and is dissipated to the outside of the radiation detector through the cold finger. As such, heat is efficiently dissipated from the radiation detecting element.

Abstract: Embodiments of the present invention provide a neutron spectrometry system, comprising a plurality of semiconductor detector portions arranged in close proximity, wherein the detector portions are arranged in at least two non-parallel axes, wherein each detector portion is arranged to output a detection signal indicative of energy deposited in the detector portion by ionising particles induced in the device by incident neutrons, and a control unit arranged to receive the plurality of detection signals, and to allocate detection signals to one or more of a plurality of channels based on a number of substantially coincident detection signals for determining a spectrum of incident neutrons based thereon.

Abstract: A marine survey acquisition system. The system may include a vessel for towing a marine survey spread. The marine survey spread may include streamers, marine vibrators and a cable. The cable may be coupled to a respective streamer from among the streamers and one of the marine vibrators. The cable may power the respective streamer and the one of the marine vibrators. The one of the marine vibrators may emit energy at a high frequency range.

Abstract: An apparatus for storing control units comprises a cabinet (10) with a plurality of rails (41) arranged horizontally along inner sidewalls and is configured to receive a plurality of drawers (40) above each other. Each drawer (40) comprises a plurality of docking sockets (1), each docking socket (1) being configured to receive and retain one control unit. The apparatus comprises a robotic elevator device (20) adapted to move an elevator table (30) in a vertical direction to a vertical position corresponding to a pair of rails (41) into which a drawer (40) is to be inserted or from which the drawer (40) is to be withdrawn. The elevator table (30) comprises a linear motor (32, 34) capable of moving the drawer (40) along a pair of rails (41) in a longitudinal direction. A robotic gripper, which may be internal or external to the apparatus, is capable of putting control units into the docking sockets or withdrawing the control units from the docking sockets.

Abstract: A marine seismic streamer comprising a solid, hydrophobic core member that is encased in a hydrophobic streamer skin/casing. The hydrophobic streamer skin may be extruded onto and/or heat welded to the hydrophobic core member. The hydrophobic streamer skin/casing may comprise a thermoplastic polyurethane that includes fluorine and/or silicon moieties, silicon, polydimethylsiloxane or the like. The hydrophobic streamer skin/casing may reduce the drag of the streamer and may provide anti-biofouling properties to the streamer. A hydrophobic paint, coating or polymer may in some instances be disposed on top of the hydrophobic streamer skin/casing.

Abstract: A system, method and computer program product for seismic imaging implements a seismic imaging algorithm utilizing Reverse Time Migration (RTM) and Full Waveform Inversion (FWI) techniques requiring large communication bandwidth and low latency to convert a parallel problem into one solved using massive domain partitioning. Since in RTM and FWI, the forward wave propagation is iteratively calculated on time step increments, there are very high statistical correlation between the intermediate wavefields at the adjacent time steps. This correlation is exploited in compression of the intermediate wavefields so as to achieve much higher compression ratio and avoid the disk IO bottleneck and reduce the overall computing time substantially. Further, during simulation of a reverse wavefield, reverse predictive encoding technique is performed such that snapshots are not recovered in the reverse propagation path due to a prediction chain.

Abstract: Disclosed herein is a system and method for building a velocity model for a geographical area of interest (GAI). The system and method comprise determining a ray based tomography velocity image of said GAI using acquired data, determining a high resolution velocity guide (HRVG) image of said GAI, scaling said determined HRVG of said GAI, adding the scaled HRVG to the ray based tomography velocity image to determine an updated ray based tomography velocity image, and determining whether said updated ray based tomography velocity image has experienced convergence by determining whether a cost function of said ray based tomography velocity image does not improve compared to a previously determined cost function value of said ray based tomography velocity image.

Abstract: This disclosure is directed to systems and methods for stacking seismic data. The methods receive seismic data collected from a survey of a subterranean formation. A gather of seismic data may have flattened reflection events obtained as a result of normal moveout (“NMO”) corrections or pre-stack migration. Alternatively, the gather may be an unmigrated gather with non-horizontal reflection events. A smoothed-amplitude gather is generated from the gather. Traces of the gather are stacked to generate a trace with significantly reduced noise using corresponding smoothed amplitudes of the smoothed-amplitude gather as weights.

Abstract: Various implementations described herein are directed to a marine seismic acquisition system. The marine seismic acquisition system may include a first vessel towing a first source array and a first plurality of streamers. The first vessel is configured to travel along a first coil path. The marine seismic acquisition system may include a second vessel towing a second source array and a second plurality of streamers. The second vessel is configured to travel along a second coil path. The marine seismic acquisition system may include a third vessel towing a third source array and a third plurality of streamers. The third vessel is configured to travel along a third coil path. The marine seismic acquisition system may also include a fourth vessel towing a fourth source array and a fourth plurality of streamers. The fourth vessel is configured to travel along a fourth coil path.

Abstract: Method and marine acoustic source array for generating an acoustic wave in a body of water. The marine acoustic source array includes at least one sub-array. The at least one sub-array includes a float from which plural source points are attached. The source points may be provided on a curved line, straight line, or other desired shape so that a variable-depth source is obtained with a single float. The source points may be divided into groups and the groups may be provided on the curved line, straight line or other desired shape.

Abstract: A method for detecting powder is performed in a powder detection device including a pair of electrodes arranged to be opposed to each other with a gap interposed therebetween and an electric circuit electrically connected to the pair of electrodes. The method includes detecting powder filling in a case where the electric circuit together with powder and the electrodes forms a closed circuit when the powder fills the gap.

Abstract: A system for locating an underground utility that emits an electromagnetic signal comprises first and second receivers. The first receiver has electronics that respond to a spatial position of the first receiver with respect to the electromagnetic signal and therefore the utility. The second receiver is adapted for communication with the first receiver. The first receiver is configured for disposition within an underground excavation proximate to the utility.

Abstract: An apparatus for checking for a presence of an electrically conductive body has at least one transmitting device and at least one receiving device. The transmitting device provides a transmission signal in the form of a magnetic field. The receiving device generates a reception signal from the transmission signal that is induced into the receiving device. The transmitting and receiving devices are configured in such a way that, when the electrically conductive body is absent, partial reception signals form in the receiving device on account of the induced transmission signal and the partial reception signals substantially cancel one another out in the reception signal.

Abstract: A locating device includes an AC voltage locating apparatus. The AC voltage locating apparatus has a first receiving apparatus configured to receive a first coupling signal from a locatable object. The AC voltage locating apparatus also has at least a second receiving apparatus configured to receive at least a second coupling signal from the locatable object. The AC voltage locating apparatus also has at least a first amplifier circuit configured to amplify a difference of the first coupling signal relative to a reference signal in at least one operating. The AC voltage locating apparatus also has at least a second amplifier circuit configured to amplify a difference of the first coupling signal and the second coupling signal in at least one operating state.

Abstract: During drilling of an earth borehole, resistance measurements may be made at the drill bit through use of a bottom hole assembly that includes a drill bit having a sensor, such as an electrode, located generally at an exterior surface of the drill bit. The current will be induced in the formation from multiple transmitters, at least one of which will be supported on, or very close to the drill bit. Connection mechanisms are described that enable the releasable engagement of electrical conductors to circuitry within the drill bits. The obtained resistivity measurements at the drill bit can be used for many purposes, including formation imaging and geosteering of the drilling operation.

Abstract: Devices and methods for detecting chemicals are disclosed. A device configured for use in a wellbore includes a sensor including a quantum tunneling composite (QTC) material configured to exhibit a change in electrical resistance responsive to the sensor contacting a target chemical. The sensor includes electrical resistance measuring circuitry operably coupled to the QTC material and configured to measure the electrical resistance of the QTC material and output a sensor signal indicating the electrical resistance. A method comprises deploying the sensor into the wellbore, measuring the electrical resistance of the QTC material, and determining the presence of the target chemical responsive to detecting changes in the electrical resistance of the QTC material. Another method includes selecting at least one of the QTC material and an active material to interact with a target wellbore chemical to change the electrical resistance of the QTC material.

Abstract: A method of performing an electromagnetic measurement of an earth formation includes disposing a downhole tool in a borehole in an earth formation, the downhole tool including an electrically conductive component, at least one electromagnetic transmitter located at a location along the tool, a first receiver located a first distance from the location, and a second receiver located at a second distance from the location. The method also includes applying a single rectangular current pulse having a substantially constant amplitude to the transmitter to generate an electric current in the formation, the current pulse having a specified time duration ?T. The method further includes measuring transient signals during a time period subsequent to the time in response to the generated current, combining the transient signals to generate a combined transient signal, and estimating a resistivity of the formation based on the combined transient signal.

Abstract: Methods for constraining basin models to forecast the presence and maturity of hydrocarbon in a basin. The method involves determining a Curie depth at a location at the basin, constraining basin models to match the Curie depth at the location and determining the presence of hydrocarbon in the basin based on the basin models constrained by Curie depth.

Abstract: A system and method for processing weather alerts through a cell phone. One or more channels of a radio network of a weather service are received through the cell phone. One or more weather alerts are received through the one or more channels. A determination is made whether the one or more weather alerts are applicable to a user of the cell phone. The one or more weather alerts are communicated to a user through the cell phone in response to determining the one or more weather alerts are applicable to the user.

Abstract: Provided is a method of fabricating a thick film of a large area substrate. The method of fabricating comprises applying a first rein on a base substrate to form a rein partition, and applying a second resin on an inner area formed by the resin partition. According to the present invention, by forming a first partition formed with resin when a film of a large area is coated and then by coating the film, uniformity and reliability of the coating can be improved.

Abstract: An optical material of the present invention has the following characteristics (1) to (4) in a transmittance curve which is measured at a thickness of 2 mm of the optical material. (1) the transmittance curve has a maximum transmittance value at 400 nm to 440 nm and the maximum transmittance thereof is 50% or more. (2) the transmittance curve has a minimum transmittance value at 471 nm to 500 nm. (3) The transmittance at 540 nm is 60% or more. (4) The minimum transmittance value at 471 nm to 500 nm is seven-tenths or less of the maximum transmittance at 400 nm to 440 nm and is seven-tenths or less of the transmittance at 540 nm.

Abstract: An optical waveguide photosensitive resin composition containing an aliphatic resin having a polymerizable substituent and a photopolymerization initiator, in which the aliphatic resin having the polymerizable substituent is formed of a side-chain polyfunctional aliphatic resin (A) and a bifunctional long-chain aliphatic resin (B), is provided. Accordingly, the composition brings together high transparency, satisfactory roll-to-roll compatibility, and a high resolution patterning property, and has excellent reflow resistance. Therefore, the composition is useful as a material for forming an optical waveguide, especially a core layer-forming material.

Abstract: A laminate body (1) is provided with a transparent substrate (10) and a refractive layer (11) which refracts incident light towards the top of the substrate (10). The refractive layer (11) contains, at least, one kind of fluorine compound (ss) selected from a group consisting of fluoro-silsesquioxane and fluoro-silsesquioxane polymers, and a resin (pl) having a refractive index higher than that of the aforementioned fluorine compound (ss). Of the side of the substrate (10) (the side of the back surface s2) and the side opposite thereof (the side of the front surface s1), the concentration of the fluorine compound (ss) in the refractive layer (11) is higher on said side opposite (the side of the front surface s1), and the refractive layer (11) forms a graded structure layer of high refractive indices and low refractive indices inside the layer.

Abstract: A window member includes a first member and a second member, and is divided into a transmission area and a light blocking area. The first member includes a first base member, and a first decoration member on a portion of a surface of the first base member. The second member includes a second base member, and a second decoration member on a portion of a surface of the second base member configured to define a boundary line between the transmission area and the light blocking area. The second base member includes a first area on which the second decoration member is disposed and corresponding to a portion of the light blocking area; a second area corresponding to the transmission area, and a third area corresponding to the remaining portion of the light blocking area. The first decoration member overlaps with the third area and partially overlaps with the first area.

Abstract: A color filter pattern including a plurality of color filters arranged in a pattern and the manufacturing method thereof are provided. By performing at least one two-stage exposure process to a color filter layer, the plurality of color filters are formed with a sharp profile.

Abstract: A technique relates to a microwave device. A microwave system is configured to output a microwave readout signal, where the microwave system has an input and an output. An output microwave transmission line is connected to the output of the microwave system. A distributed Bragg reflector, integrated into a transmission line geometry, is configured as a low-loss infrared filter that blocks infrared radiation while allowing transmission of the microwave readout signal. The low-loss infrared filter is connected to the output microwave transmission line.

Abstract: A display device includes a window panel including a display area and a non-display area including a first non-display area and a second non-display area and a display panel including a pixel area generating an image to be displayed in the display area and a non-pixel area surrounding the pixel area. The window panel includes a window glass, decoration printed layers disposed on the window glass in the first and second non-display areas, and a light-blocking printed layer disposed on the window glass and the decoration printed layers to cover the decoration printed layers in the first non-display area and having a black color. A boundary line corresponding to a boundary between the display area and the non-display area is an inner surface of the light-blocking printed layer and the display area corresponds to the pixel area at the boundary line.

Abstract: The present disclosure relates to thin film optical interference filters. The filters include a substrate and a plurality of alternating material layers deposited on the substrate. When operated at about 45° angle of incidence, the filters exhibit at least one of improved polarization splitting, edge steepness, bandpass bandwidth, and blocking, relative to conventional thin film interference filters.

Abstract: Passive optical systems and methods for improving polarization of an optical reference beam are disclosed. For example, an optical system includes first and second quarter wavelength plates (QWPs) positioned in a beam path of the optical system. The second QWP is positioned in the beam path such that a fast axis of the second QWP is substantially orthogonal to a fast axis of the first QWP. First and second polarization elements are also positioned in the beam path. The first and second polarization elements are each configured to provide both diattenuation and retardance of the optical reference beam.

Abstract: A light device includes a controller, a light-guiding tube, two holders, and two cables. Each of the two holders defines therein a receiving space, in which an LED unit is provided to serve as a light source. The two holders are detachably mounted over two ends of the light-guiding tube, respectively, such that the LED unit located in each holder faces one end of the light-guiding tube, so that light rays emitting from each LED unit may enter the light-guiding tube. Each of the two cables is provided between one of the two holders and the controller for detachably connecting the LED unit located in the holder with the controller. When an LED unit fails, the corresponding holder with the failed LED unit therein can be removed from the light-guiding tube and the associated cable to be replaced with a new one, thus facilitating repair and saving the cost.

Abstract: An electronic device bezel includes a front panel, a light source, a light transmitting member, and a light guiding member mounted in the light transmitting member. The light source is mounted on an inner side of the front panel. The light transmitting member mounted on an outer side of the front panel. An end of the light guiding member extends through the front panel and is aligned with the light source to guide a plurality of light beams emitted from the light source to the light transmitting member.

Abstract: A side-emitting optical fiber system and an assembly are disclosed that utilize a side-emitting optical fiber and light-emitting jacket members operably disposed about the outer surface of the side-emitting optical fiber. The light-emitting jacket members receive side-emitted light having an input wavelength. Each light-emitting jacket member receives the side-emitted light and converts it to light having a different wavelength that the input wavelength. This converted light is then emitted from the light-emitting jacket members, thereby providing side-emitted light of different colors.

Abstract: The problem is to provide a front plate of a TN liquid crystal display device capable of reducing occurrence of color unevenness caused by retardation of a polycarbonate resin sheet, even when the liquid crystal panel is observed through polarizing glasses or liquid crystal shutter glasses for 3D, while having excellent impact resistance, heat resistance and transparency. The solution means are that the direction of the slow axis or the fast axis of a polycarbonate resin sheet is parallel to the lengthwise direction of a TN liquid crystal panel, and that retardation is not less than 5000 nm.

Abstract: The present invention provides a light guide plate, a backlight module, and a display device. The light guide plate contains a platform of uniform thickness along an edge of the light guide plate for installing a flexible printed circuit (FPC). The platform contains a plurality of through openings for installing light emitting diodes (LEDs). The backlight module contains LEDs, a FPC, and the light guide plate. The FPC is configured on the platform. The LEDs are configured inside the openings. The display device contains the backlight module. The present invention enhances the reliable connection between the FPC and light guide plate, reduces the probability of coupling failure, and lower the manufacturing difficulty and cost.

Abstract: Direct-lit backlights and associated methods and components are disclosed in which a transflector that partially transmits and partially reflects incident light is shaped to form at least one concave structure facing a back reflector of the backlight. This provides at least one recycling cavity therebetween, the at least one recycling cavity substantially filling the output area of the backlight. At least one light source is disposed behind the output area to inject light into each cavity, and can be positioned in the recycling cavity or behind an aperture in the back reflector. The cavities are preferably shallow and wide, having a width-to-depth ratio of at least 5 or 10, and can provide uniform brightness and color at the output area with sparsely distributed light sources and in a thin profile backlight.

Abstract: In various embodiments, an illumination apparatus features spatially separated input and output regions, a light source, a phosphor for light conversion, and an out-coupling structure.

Abstract: A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection and a light input edge. The light assembly also includes a light engine. The light engine has a heat conductive armature having a receptacle for a portion of the light guide that includes the light input edge and a light source retained by and thermally coupled to the armature. The armature functions as a heat sink for dissipating heat generated by the light source. The light guide is mechanically retained in the receptacle, and the light guide and the armature cooperate to align the light input edge with the light source for inputting light from the light source into the light guide through the light input edge.

Abstract: A display may have an array of pixels that display images for a user. The backlight unit may have a light-guide layer. An array of light-emitting diodes may emit light into an edge of the light-guide layer. The light guide layer may overlap a backlight reflector. The backlight reflector may include a backlight reflector panel formed from a stack of dielectric layers on a rectangular substrate. The backlight reflector may also include a strip of backlight reflector tape having an edge that is overlapped by an edge portion of the backlight reflector panel. Color compensating features such as printed colored ink patterns may be formed on the backlight reflector to adjust the color of backlight illumination in portions of the backlight unit adjacent to the light-emitting diodes.

Abstract: A backlight module can include a light guiding board, a light source located at a side of the light guiding board, a package layer coupled to light guiding board, and a quantum dots layer located between the light guiding board and the package layer. The light guiding board can include a light entering face and a light exiting face. The light source is facing the light entering face of the light guiding board. The light source being is configured to provide light to the light entering face of the light guiding board. The quantum dots layer is adjacent to the light exiting face of the light guiding board. The light guiding board and the package layer cooperative define a receiving room receiving the quantum dots layer on the light guiding board.

Abstract: The present invention relates to an apparatus for controlling a light beam path. Specifically, the apparatus for controlling the light beam path outputs light beams with a uniform intensity expanded corresponding to a size of an active area of a display by using characteristics of an incident wave field of light beams having coherence.