Patents Issued in April 16, 2019
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Patent number: 10261192Abstract: Methods, systems and computer program products for radionavigation for swimmers are described. A mobile device configured to estimate a location using radio frequency signals can estimate a position of the swimmer when the mobile device is worn on a limb of the swimmer and periodically submerged. The mobile device can supply auxiliary information to a radionavigation subsystem to correct a navigation solution affected by limb motion of the swimmer and affected by the periodic submersion of the mobile device.Type: GrantFiled: June 10, 2016Date of Patent: April 16, 2019Assignee: Apple Inc.Inventors: Isaac Thomas Miller, Glenn Donald MacGougan, Xiao Xiao
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Patent number: 10261193Abstract: A method for determining an image rejection characteristic of a receiver within a transceiver is provided. The transceiver uses a common local oscillator. The method includes generating a test signal having a spectral peak and generating a local oscillator signal comprising a frequency with an offset from a center frequency of the spectral peak. Further, the method includes down-mixing the test signal in the receiver using the local oscillator signal to generate a down-mixed signal. The method further includes calculating a first value of a signal characteristic of the down-mixed signal in a first frequency range corresponding to a desired signal component of the down-mixed signal and calculating a second value of the signal characteristic of the down-mixed signal in a second frequency range corresponding to an undesired signal component of the down-mixed signal. Further, the method includes comparing the first value and the second value to generate the image rejection characteristic.Type: GrantFiled: May 11, 2016Date of Patent: April 16, 2019Assignee: Intel IP CorporationInventors: Rainer Dirk Kreienkamp, Junlin Yan, Harald Doppke, Markus Hammes
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Patent number: 10261194Abstract: Systems and methods for vehicle attitude determination are provided.Type: GrantFiled: January 6, 2016Date of Patent: April 16, 2019Assignee: Honeywell International Inc.Inventors: Nuri Kundak, Brian W. Schipper
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Patent number: 10261195Abstract: A detector array (112) of an imaging system (100) includes a radiation sensitive detector (202/204/206) configured to detect radiation and generates a signal indicative thereof and electronics (208) in electrical communication with the radiation sensitive detector. The electronics include a current-to-frequency converter (300) configured to convert the signal into a pulse train having a frequency indicative of a charge collected during an integration period. The electronics further include a residual charge collection circuit (322) electrically coupled to current-to-frequency converter. The residual charge collection circuit is configured to store charge collected by the integrator for an end portion of the integration period that does not results in a pulse of the pulse train, utilizing much of the electronics already in the current-to-frequency converter electronics.Type: GrantFiled: July 28, 2016Date of Patent: April 16, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventor: Marc Anthony Chappo
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Patent number: 10261196Abstract: A radiation detector is disclosed. The radiation detector includes a sensor unit having a plurality of sensor elements for generating a sensor signal; an evaluation unit having a plurality of evaluation elements for evaluating and converting the sensor signal into an output signal; and a signal processing unit directly following the evaluation unit for processing the output signal, each evaluation element being connected to an associated sensor element via a respective electrical interconnect element including an interconnect capacitance and an individual length. The interconnect capacitances are different and as a result lead to different signal properties being exhibited by the output signals. At least some of the evaluation elements including an additional actuating element, the actuating elements of different evaluation elements being different from one another and being chosen such that the different signal properties of the output signals are aligned.Type: GrantFiled: June 14, 2018Date of Patent: April 16, 2019Assignee: SIEMENS HEALTHCARE GMBHInventors: Edgar Goederer, Michael Hosemann
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Patent number: 10261197Abstract: A radiation detector includes a flexible substrate, and a sensor board including a layer which is provided on a first surface of the substrate and in which a plurality of pixels, which accumulate electrical charges generated in accordance with light converted from radiation, are formed, a conversion layer that is provided on the first surface side of the sensor board to convert radiation into light, a protective film that covers at least a region ranging from a region that covers the conversion layer to a region at an outer peripheral part of a second surface opposite to the first surface of the substrate, and a supporting member that supports the region of the substrate via the protective film from the second surface side of the substrate.Type: GrantFiled: February 7, 2018Date of Patent: April 16, 2019Assignee: FUJIFILM CorporationInventors: Shinichi Ushikura, Keiichi Akamatsu, Haruyasu Nakatsugawa
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Patent number: 10261198Abstract: A radiation image conversion panel includes: a substrate; a metal oxide layer formed on the substrate, including conductivity, and including a rough surface; a first organic resin layer formed on the surface of the metal oxide layer; and a fluorescent layer formed on the first organic resin layer, including a plurality of columnar crystals, and configured to emit light in accordance with incident radiation.Type: GrantFiled: September 1, 2016Date of Patent: April 16, 2019Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Kazuhiro Shirakawa, Akinori Tou
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Patent number: 10261199Abstract: A module (1) for a detector (14) of ionizing radiation comprising at least two detection segments (2) for detecting ionizing radiation, attached to a row carrier (3) allowing for the assembly of detectors (14) with an unlimitedly large detection surface for continuous imaging of ionizing radiation. The construction of the module (1), including a means (10) for power supply stabilization for each detection segment (2), an interconnection of electrical conductors (8), formed by printed circuit boards (9, 13) led vertically downwards perpendicular to the detector surface along the row carrier (3), and a parallel connection to the connectors (11) of the read-out electronics, increases the reliability and speed of the operation of the detector (14). Between the individual parts of the module (1) there are formed thermal bridges to stabilize the temperature and to increase the reliability of the detector (14) assemblies from the modules (1).Type: GrantFiled: May 10, 2016Date of Patent: April 16, 2019Assignee: ADVACAM S.R.O.Inventors: Jan Jakúbek, Martin Jakúbek, Pavel Soukup
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Patent number: 10261200Abstract: A device configured to detect particles from a radioactive source can localize the source in two dimension, such as the azimuthal and polar angles of the source. Embodiments of the device may comprise a hollow cylindrical or tubular array of “side” detector panels, plus a “central” detector positioned within the array, with no shield or collimator. The various side detector counting rates can indicate the azimuthal angle of the source, while the polar angle can be determined by a ratio of the side detector data divided by the central detector data. Embodiments of the directional detector device can provide greatly improved inspections, thereby detecting clandestine nuclear and radiological weapons, or other sources that are to be localized, rapidly and precisely.Type: GrantFiled: December 14, 2018Date of Patent: April 16, 2019Inventor: David Edward Newman
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Patent number: 10261201Abstract: A method for determining depth-of-interaction correction in a PET system. The method includes modifying crystal and readout configuration to improve depth-dependent arrival profile of scintillation photons, creating a photon dispersion model within a scintillator crystal, measuring photon arrival profile of individual gamma ray event, deriving an estimated depth-of-interaction, and deriving a gamma ray event time based on a time stamp corrected with the estimated depth-of-interaction. The method further includes modeling dispersion at different depths of interaction within the scintillator crystal, providing a reflector layer to delay back-reflected photons, providing two respective readouts for the same gamma ray event from two respective pixels optically coupled by a backside reflector or modified crystal configuration, calculating a time difference of the photon arrival at the two pixels, and estimating the depth-of-interaction by applying a statistical weighting.Type: GrantFiled: April 4, 2016Date of Patent: April 16, 2019Assignee: General Electric CompanyInventors: Geng Fu, Floribertus P M Heukensfeldt Jansen, Jianjun Guo, Sergei Ivanovich Dolinsky
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Patent number: 10261202Abstract: A computing system and method for mitigating, in a first seismic survey, cross-talk generated by a second seismic survey. The method includes performing the first seismic survey with a first survey seismic source driven by a first survey pilot sweep, performing the second seismic survey with a second survey seismic source, simultaneously with the first seismic survey, recording with first survey seismic sensors (i) first survey seismic signals that originate from the first survey seismic source and (ii) second survey seismic signals that originate from the second survey seismic source, selecting another first survey pilot sweep, which has less cross-correlation noise with the second survey seismic signals than the first survey pilot sweep, and continuing the first seismic survey with the another first survey pilot sweep.Type: GrantFiled: October 20, 2015Date of Patent: April 16, 2019Assignee: CGG SERVICES SASInventor: John Sallas
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Patent number: 10261203Abstract: A horizontal component of marine seismic survey data from an ocean bottom seismic survey can be migrated using a primary wave velocity model. The horizontal component can comprise a shear converted wave. An image of a subsurface location can based on the migration can be produced. Migrating the horizontal component can comprise wave-equation migrating the horizontal component, where the horizontal component is input as both a source wavefield and a receiver wavefield.Type: GrantFiled: February 9, 2017Date of Patent: April 16, 2019Assignee: PGS Geophysical ASInventors: Julien Oukili, Grunde Rønholt
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Patent number: 10261204Abstract: System for analyzing scan data of a core sample includes an imaging system for obtaining images of a first segment and a second segment of the core sample, and one or more processors for receiving the images of the first segment and the second segment, and setting the images of the first segment adjacent to the images of the second segment coaxially in series to form a stacked image. The method includes receiving image data of segments of the core sample, determining values representative of one or more physical characteristics of the core sample, comparing the values to known reference information of a material similar to the material of the core sample, and determining the one or more physical characteristics of the core sample based at least in part on the comparison.Type: GrantFiled: December 28, 2015Date of Patent: April 16, 2019Assignee: GE Energy Oilfield Technology, Inc.Inventors: John Christopher Boot, Ali Can
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Patent number: 10261205Abstract: A system for processing seismic data for a geologic formation generated by an array of acoustic transducers responsive to an acoustic source may include a seismic data storage device and a processor. The processor may cooperate with the seismic data storage device to use a volatility measurement model to generate current correlations of data from the array of acoustic transducers based upon a current estimate for at least one of density and velocity of the geologic formation, and compare the current correlations to a threshold. When the current correlations are below the threshold, the processor may update the current estimate for at least one of density and velocity of the geologic formation, and repeat use of the volatility measurement model to generate updated correlations of data from the array of acoustic transducers based upon the updated estimate for at least one of density and velocity of the geologic formation.Type: GrantFiled: August 3, 2016Date of Patent: April 16, 2019Assignee: HARRIS CORPORATIONInventors: Jessica L. Ascough, Mark D. Rahmes, George W. Lemieux, Raquel M. Cohen
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Patent number: 10261206Abstract: Techniques for Gaussian beam migration imaging are described herein. According to some aspects, a seismic wave field of an earth surface is represented in the form of superposition of Gaussian beams with a present curvature parameter in a time-space domain. A width of the Gaussian beam based function and a spacing between centers of adjacent Gaussian beams of the seismic wave field of the earth surface are set as a preset width and spacing, respectively. A decomposition model is established according to the set seismic wave field. An optimization solution algorithm is applied, based on seismic data and a medium velocity model, to the decomposition model to obtain multiple waveform functions. Gaussian beams corresponding to the multiple waveform functions are propagated, based on the medium velocity model. Migration imaging is performed to obtain migration imaging results.Type: GrantFiled: November 10, 2017Date of Patent: April 16, 2019Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Peng Liu, Yanfei Wang
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Patent number: 10261207Abstract: A seismic noise mitigation method. The method comprises identifying a wavenumber of a component in a residual wavenumber spectrum having a largest norm based on a preconditioned residual wavenumber spectrum. A contribution to the residual wavenumber spectrum from the identified wavenumber component, is subtracted therefrom. A next residual wavenumber spectrum is based thereon and a relative residual computed based on that. The identifying, subtracting and calculating are repeated until a first to occur termination condition selected from the group consisting of: a current relative residual is less than a threshold residual; a difference between the current relative residual and a smallest relative residual exceeds product of the smallest relative residual and a preselected threshold factor; and a difference between a current number of iterations and a number of iterations corresponding to a currently encountered smallest relative residual encountered exceeds a preselected threshold number of iterations.Type: GrantFiled: December 18, 2015Date of Patent: April 16, 2019Assignee: PGS Geophysical ASInventors: Andreas Klaedtke, Paolo Terenghi, Roald Gunnar van Borselen, Richard Michael Dyer
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Patent number: 10261208Abstract: Obscured feature detectors and methods of detecting obscured features are disclosed. An obscured feature detector can include a plurality of sensor plates. Each of the sensor plates can have an equivalent primary sensing field zone and a capacitance that varies based on the dielectric constant of the materials that compose the surrounding objects and the proximity of those objects. A sensing circuit is coupled to the sensor plates to measure the capacitances of the sensor plates. A controller is coupled to the sensing circuit to analyze the capacitances measured by the sensing circuit. One or a plurality of indicators are coupled to the controller, and can be selectively set to identify a location of an obscured feature behind a surface.Type: GrantFiled: April 22, 2016Date of Patent: April 16, 2019Inventor: David M. Dorrough
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Patent number: 10261209Abstract: A downhole drilling tool that has a deep-reading logging tool, a near-bit resistivity tool, and a gamma ray detector. Formation information logged using the deep-reading logging tool is used to build a preliminary stratigraphic model with a relatively low resolution. The preliminary stratigraphic model is further refined using data logged using the near-bit resistivity tool and/or the gamma ray detector to obtain a refined stratigraphic model with a higher resolution. The model is used to guide geosteering to achieve better well placement and trajectory control.Type: GrantFiled: February 29, 2016Date of Patent: April 16, 2019Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC TECH HOUSTON, LLC, DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SHENGLI PETROLEUM ENGINEERING CORPORATION LIMITED, SINOPECInventors: Jinzhou Yang, Sheng Zhan, Zhen Yang, Jinhai Zhao, Hongbing Xiao, Weiping Xu, Haihua Zhang, Herong Zheng
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Patent number: 10261210Abstract: Methods and systems for estimating properties of formations including conveying a carrier through a borehole having a first transmitter, a second transmitter collocated with the first transmitter, a first receiver, and a second receiver, the first receiver positioned a first distance from the first transmitter and the second receiver positioned a second distance therefrom, generating a transient electromagnetic field with the first transmitter, generating a suppression signal with the second transmitter, the suppression signal configured to suppress a response received by the first and second receivers that is caused by the transient electromagnetic field interacting with the carrier, measuring a signal with suppressed pipe signal at the first and second receivers, the measured signal representing the formation response to the transient electromagnetic field, estimating a formation property from the measured signal to select a model, and adjusting a drilling operation based on the estimated property of the foType: GrantFiled: March 9, 2016Date of Patent: April 16, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventor: Steven Allen Morris
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Patent number: 10261211Abstract: Nuclear magnetic resonance (NMR) logging tools may be configured for situation-dependent NMR logging operations by including two dissimilar coils that may function in four different modes of operation based on logging conditions including: a resistivity of the fluid, a diameter of the wellbore, a depth into the subterranean formation of the volume of investigation, or a combination thereof. For example, an NMR logging tool with a z-coil and a transversal coil may be useful in generating in a volume of investigation of a subterranean formation either (1) a transversal radiofrequency (RF) excitation with the transversal coil or (2) a quadrature RF excitation with both the z-coil and the transversal coil, where the choice of transversal or quadrature RF excitation is based on the logging conditions; and detecting an NMR signal from the subterranean formation with one of: (1) the transversal coil or (2) both the z-coil and the transversal coil.Type: GrantFiled: November 5, 2015Date of Patent: April 16, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Lilong Li, Arcady Reiderman
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Patent number: 10261212Abstract: A diffraction system configured to generate a diffraction signature based upon an angular disbursement of radiation is provided. In some embodiments, the diffraction system comprises a radiation source comprising a radiographic isotope configured to natural emit radiation due to decay. In some embodiment, the diffraction system is part of an object identification system that comprises one or more other radiation imaging modalities, such as a CT system and/or a line-scan system. By way of example, the one or more other radiation imaging modalities may perform an initial examination of an object to generate data indicative of the object. The data can be analyzed to identify an item of interest within the object, which can subsequently be examined by the diffraction system to generate a diffraction signature of the item. The diffraction signature of the item can be compared to known diffraction signatures of know items to characterize the item.Type: GrantFiled: July 25, 2013Date of Patent: April 16, 2019Assignee: Analogic CorporationInventors: David Schafer, John P. O'Connor
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Patent number: 10261213Abstract: A radiation detector useable in a downhole tool configured to be positioned in a borehole includes a printed circuit board and at least one detector element coupled to the printed circuit board. The at least one detector element includes a semiconductor direct conversion material for directly converting gamma rays into electrical signals. The semiconductor direct conversion material includes a cathode surface and an anode surface. In addition, the at least one detector element includes a cathode operatively connected to the cathode surface, and an anode operatively coupled to the anode surface. The radiation detector also includes a voltage source coupled to the printed circuit board and configured to provide a voltage to the at least one detector element.Type: GrantFiled: June 7, 2017Date of Patent: April 16, 2019Assignee: General Electric CompanyInventors: Helene Claire Climent, Stewart Blake Brazil
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Patent number: 10261214Abstract: A method for separating and quantifying gamma ray induced and neutron induced responses in a radiation detector includes detecting radiation in a radiation field comprising neutrons and gamma rays. The detected events are converted into a detector pulse amplitude spectrum. The pulse amplitude spectrum is decomposed into contributions from detected gamma rays and detected neutrons using gamma ray standard spectra and neutron standard spectra and a spectral fitting procedure which results in a best fit between a weighted sum of the contributions and the detector pulse amplitude spectrum. The fitting procedure includes determining fitting parameters for each of the standard spectra wherein at least one of the fitting parameters is different for the gamma ray standard spectra and the neutron standard spectra. In one embodiment, the fitting parameter is spectral gain.Type: GrantFiled: May 2, 2016Date of Patent: April 16, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Christian Stoller
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Patent number: 10261215Abstract: Described herein are implementations of various technologies for a method. The method may receive seismic attributes regarding a region of interest in a subsurface of the earth. The method may receive electrical attributes regarding the region of interest. The method may receive a selection of a rock physics model for the region of interest. The method may calculate values of rock parameters for the selected rock physics model using a nonlinear relation that links cross-properties between the seismic attributes and the electrical attributes for the region of interest. The method may determine the presence of hydrocarbon deposits in the region of interest using the calculated values.Type: GrantFiled: February 20, 2014Date of Patent: April 16, 2019Assignee: WESTERNGECO L.L.C.Inventors: Fabio Marco Miotti, Andrea Lovatini, Ivan Guerra
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Patent number: 10261216Abstract: The present disclosure describes methods and systems for detecting a tracer in a hydrocarbon reservoir. One method includes injecting a tracer at a first location in a reservoir, wherein the tracer mixes with subsurface fluid in the reservoir; collecting fluid samples at a second location in the reservoir; mixing a magnetic surface-enhanced Raman scattering (SERS) particle with the fluid samples; applying a magnetic field to the mixed fluid samples; and analyzing the fluid samples to detect a presence of the tracer in the fluid samples.Type: GrantFiled: October 18, 2018Date of Patent: April 16, 2019Assignee: Saudi Arabian Oil CompanyInventors: Sehoon Chang, Wei Wang, Shannon L. Eichmann
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Patent number: 10261217Abstract: Systems and methods for generating representations of recognizable geological structures from a common point collection by performing a generic geology adaptation on current data to transform it into a recognizable geological structure such as, for example, a gridded surface.Type: GrantFiled: August 15, 2014Date of Patent: April 16, 2019Assignee: LANDMARK GRAPHICS CORPORATIONInventor: Michael David Ewing
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Patent number: 10261218Abstract: A strengthened cover lens is disclosed to include a substrate, including an upper surface, a lower surface substantially parallel to the upper surface, a side surface located between the upper surface and the lower surface, and the side surface being substantially perpendicular to the upper surface and the lower surface, an upper chamfer surface formed between the upper surface and the side surface and the upper chamfer surface being adjacent the side surface, a concave portion formed between the upper surface and the upper chamfer surface, and a protection layer covering at least the concave portion and the upper chamfer surface, and a method for strengthening a cover lens being durable for abrasive condition by rigid body such as metal in common use is also provided.Type: GrantFiled: August 21, 2018Date of Patent: April 16, 2019Assignee: BUWON PRECISION SCIENCES CO., LTDInventor: Kyung-Chul Ahn
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Patent number: 10261219Abstract: Systems and methods in accordance with embodiments of the invention actively align a lens stack array with an array of focal planes to construct an array camera module. In one embodiment, a method for actively aligning a lens stack array with a sensor that has a focal plane array includes: aligning the lens stack array relative to the sensor in an initial position; varying the spatial relationship between the lens stack array and the sensor; capturing images of a known target that has a region of interest using a plurality of active focal planes at different spatial relationships; scoring the images based on the extent to which the region of interest is focused in the images; selecting a spatial relationship between the lens stack array and the sensor based on a comparison of the scores; and forming an array camera subassembly based on the selected spatial relationship.Type: GrantFiled: September 18, 2017Date of Patent: April 16, 2019Assignee: FotoNation LimitedInventors: Jacques Duparre, Andrew Kenneth John McMahon, Dan Lelescu
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Patent number: 10261220Abstract: An improved under-eye strip that reduces low-angle reflected light compared to the prior art through the use of a fuzzy material on the exposed surface of the strip.Type: GrantFiled: June 19, 2015Date of Patent: April 16, 2019Assignee: Mueller Sports Medicine, Inc.Inventor: Brett Mueller
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Patent number: 10261221Abstract: Corner cubes are well known retro-reflective devices. Corner cubes may be employed for high brightness in reflective image displays. An embodiment of a reflective image display is disclosed that employs corner cubes with metallized surfaces. Light reflection and absorption may be modulated with electrophoretically mobile light absorbing particles or electrofluidic systems. Display images may be created to convey information to a viewer.Type: GrantFiled: December 2, 2016Date of Patent: April 16, 2019Assignee: CLEARink Displays, Inc.Inventor: Lorne A. Whitehead
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Patent number: 10261222Abstract: Retroreflective articles include a layer of optical elements, and a polyurethane bead bond layer. The optical elements include transparent microspheres, and at least one reflective layer. The polyurethane bead bond layer is the reaction product of a reaction mixture of at least one aliphatic polycarbonate polyol and at least one polyisocyanate, and the reaction mixture is free of polyols containing unsaturated groups. The retroreflective articles have improved wash durability.Type: GrantFiled: June 10, 2015Date of Patent: April 16, 2019Assignee: 3M Innovative Properties CompanyInventors: Bruce H. Edwards, Shri Niwas, Ying Xia
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Patent number: 10261223Abstract: Exemplary method and system for providing a diffractive configuration in an optical arrangement are provided. For example, a material can be provided with at least one patterned surface having a very high aspect ratio. The material can be connected with at least one portion of a waveguide arrangement using a pre-polymer adhesive composition. Further, the pre-polymer adhesive composition can be caused to polymerize so as to form the diffractive configuration which at least approximately replicates a structure or at least one feature of the patterned surface.Type: GrantFiled: January 30, 2015Date of Patent: April 16, 2019Assignees: Canon USA, Inc., The General Hospital CorporationInventors: Guillermo J Tearney, Dongkyun Kang, Mitsuhiro Ikuta, George M. Whitesides, Ramses V. Martinez
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Patent number: 10261224Abstract: An optical element includes a transmission diffraction portion, which reflective portions and transmissive portions. The reflective portions are arranged at equal intervals along a given axis. Each reflective portion reflects light included in the visible light. The light reflected by the reflective portions forms a reflection image. The transmissive portions transmit the visible light. Each transmissive portion is sandwiched by two corresponding reflective portions that are adjacent to each other along the given axis. At least part of each reflective portion forms the reflection image by rendering a reflection angle of the light reflected by the reflective portions different from an angle of light incident on the reflective portions. The transmission diffraction portion forms diffracted images having different colors with diffracted light that is produced by diffracting light transmitted through the transmissive portions in a predetermined direction.Type: GrantFiled: December 2, 2016Date of Patent: April 16, 2019Assignee: Toppan Printing Co., Ltd.Inventors: Kazuhiro Yashiki, Akira Kubo, Chikara Sawamura, Haruna Ooki
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Patent number: 10261225Abstract: A filter assembly includes a filter defining a light transmissive region for light of a specific wavelength range to pass therethrough, and a non-light transmissive first sheet body preformed and adhered to a surface of the filter. The first sheet body has a first opening with a shape conforming to that of the light transmissive region.Type: GrantFiled: January 19, 2017Date of Patent: April 16, 2019Assignees: Lite-On Electronics (Guangzhou) Limited, Lite-On Technology Corp.Inventors: Chun-Lung Lin, Gaowei Xie, Haichao Du
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Patent number: 10261227Abstract: A method for producing a retardation film comprising the steps of: co-extruding or simultaneously casting a thermoplastic resin A and a thermoplastic resin B to obtain a laminated film comprising a layer of the thermoplastic resin A and a layer of the thermoplastic resin B; and uniaxially stretching the laminated film at least twice to cross a molecular orientation axis in the layer of the thermoplastic resin A and a molecular orientation axis in the layer of the thermoplastic resin B each other at almost right angles.Type: GrantFiled: May 1, 2015Date of Patent: April 16, 2019Assignee: ZEON CORPORATIONInventors: Taku Hatano, Kohei Arakawa, Shunsuke Yamanaka
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Patent number: 10261228Abstract: A lighting device includes a series of optical waveguides, each optical waveguide being adapted to guide light rays between an entry face and an exit face, the optical waveguides being formed of a first subassembly and a second subassembly produced separately and each including a portion of the series of optical waveguides and including structural elements to retain the optical waveguides in position. The first subassembly and the second subassembly are adapted to be assembled to form the lighting device by cooperation of the structural elements, and the first subassembly includes a first structural element adapted to connect proximal ends of the optical waveguides and a second structural element distinct from the first structural element and adapted to connect distal ends of the optical waveguides.Type: GrantFiled: March 10, 2016Date of Patent: April 16, 2019Assignee: VALEO ILUMINACIONInventors: Paul Jacquemin, Alexandre Chotard, Irene Molina, Antonio Ortega
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Patent number: 10261229Abstract: A lighting device having a side-emitting fiber bundle is provided. The fiber bundle is inserted in a sleeve that has an extension, which is effective as a light mixer.Type: GrantFiled: April 21, 2016Date of Patent: April 16, 2019Assignee: SCHOTT AGInventors: Bernd Woelfing, Hubertus Russert, Juergen Meinl, Jia Guo
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Patent number: 10261230Abstract: LED lighting devices are provided that include two optical waveguides and at least one LED in an intermediate region between end faces of the optical waveguides so that radiation from the LED is coupled into the optical waveguides through the end faces. A de-coupler is on outer circumferential surface regions of each of the two separate optical waveguides. The de-coupler reflects the radiation guided in the optical waveguides so that the radiation passes through the optical waveguides and is coupled out of the optical waveguides laterally. The intermediate region has a length that is selected so that a brightness difference, measured perpendicular to an axis of the optical waveguides in the center of the intermediate region, at a distance of 10 mm perpendicular to the axis of the optical waveguides is at most 25% based on a maximum value of brightness along the axis of the optical waveguides.Type: GrantFiled: September 15, 2016Date of Patent: April 16, 2019Assignee: Schott AGInventors: Ekkehard Gaydoul, Armin Plichta, Juergen Meinl, Bjoern Bleisinger, Martin Cramer, Thomas Reichert, Marc Timon Sprzagala, Sandra Mattheis
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Patent number: 10261231Abstract: A display apparatus including a round portion is provided. The display apparatus includes: a display panel; a light guide plate configured to guide light toward the display panel, the light guide plate comprising a flat portion and a round portion; and a printed circuit board (PCB) including a first area configured to radiate light toward the round portion, and a second area configured to radiate light toward the flat portion, wherein a width of the first area is less than a width of the second area.Type: GrantFiled: September 18, 2017Date of Patent: April 16, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jun-Mo Yoo
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Patent number: 10261232Abstract: Lens device that includes converging lens having light output surface being spaced apart along lens axis from light input surface. Converging lens has total internal reflection side surface being spaced apart around lens axis and having frusto-conical shape extending between light input and output surfaces of the converging lens. Portion of light input surface of converging lens includes light input cavity being bounded by perimeter and having central axis and being generally shaped as portion of spheroid. Light input cavity has plurality of grooves each respectively following spline along light input surface that intersects with central axis of light input cavity and with respective point on perimeter, wherein each of respective points are mutually spaced apart around perimeter of light input cavity. Lighting system including lens device.Type: GrantFiled: August 10, 2016Date of Patent: April 16, 2019Assignee: ECOSENSE LIGHTING INC.Inventors: Elizabeth Rodgers, Paul Pickard, Raghuram L. V. Petluri, Robert Fletcher
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Patent number: 10261233Abstract: A backlight unit includes a light guide layer including a plurality of extraction features disposed along a rear face of the light guide layer, a first cladding layer adhesively secured to the rear face of the light guide layer, a plurality of turning structures disposed along the first cladding layer, and a second cladding layer adhesively secured to a front face of the light guide layer. The first cladding layer has a first refractive index lower than a guide refractive index of the light guide layer. The second cladding layer has a second refractive index lower than or equal to the first refractive index.Type: GrantFiled: November 25, 2014Date of Patent: April 16, 2019Assignee: Microsoft Technology Licensing, LLCInventor: Timothy Large
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Patent number: 10261234Abstract: A display device includes: a display panel; a light source; and a light guide plate receiving light from the light source and providing the light to the display panel. The light guide plate includes an upper surface facing the display panel, a light incident surface facing the light source and a light opposing surface opposing the light incident surface. The upper surface includes a lens pattern and the lower surface incudes a prism pattern, the prism pattern includes a plurality of prisms arranged along a first direction from the light incident surface to the light opposing surface, each of the prisms has a length extending in a second direction along a length of the light incident surface, and among the prisms arranged along the first direction within the prism pattern, the lengths of the prisms increase as a distnace from the light incident surface increases.Type: GrantFiled: January 4, 2018Date of Patent: April 16, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yongkyu Kang, Seulgi Kim, Minyoung Song, Kangwoo Lee
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Patent number: 10261235Abstract: A display apparatus which is not subject to light leakage from a cut edge of a quantum dot layer includes a display panel and a backlighting module. The backlight module includes light source, light guide plate, and quantum dot enhancement layer. The quantum dot enhancement layer has functional and invalidation portions. The functional portion converts light from the light guide plate into predetermined wavelengths. The invalidation portion is formed in the non-display region, and is unable to convert light from the light guide plate into predetermined wavelengths. A distance between a side surface of the invalidation portion and a side surface of the main display region is larger than or equal to a predetermined distance. The effect of the predetermined distance is to prevent the light leaking or transmitted from the invalidation portion from entering the display region at normal viewing angles.Type: GrantFiled: May 25, 2017Date of Patent: April 16, 2019Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Wen-Chin Lo, Chun-Yun Pan, Sin-Tung Huang, Chien-Yu Wei
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Patent number: 10261236Abstract: An area light source apparatus includes a first light source and a second light source. Each of the first light source and the second light source is a three-wavelength light-emitting diode. The first light source includes first spectral characteristics including a first peak value at a blue peak wavelength, a second peak value at a green peak wavelength, and a third peak value at a red peak wavelength. The second light source includes second spectral characteristics including a fourth peak value at a blue peak wavelength, a fifth peak value at a green peak wavelength, and a sixth peak value at a red peak wavelength. The second peak value is substantially equal to the fifth peak value, and the third peak value is substantially equal to the sixth peak value.Type: GrantFiled: June 17, 2015Date of Patent: April 16, 2019Assignee: Japan Display Inc.Inventors: Yuki Namekata, Junya Yamamoto
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Patent number: 10261237Abstract: An instrument cluster, in particular for a vehicle, has a dial with a plurality of graphic areas, which are backlit by a device provided with at least one light source, with a front light-guiding element having a front face at least partially covered by a back surface of the dial, and with a rear light-guiding element; the latter has a receiving portion facing said light source and a transmitting portion, which transmits and guides the light received by the receiving portion and is spaced apart from and faces a rear face of the front light-guiding element; the rear face of the front light-guiding element has an optical compensation system, having curved convex or curved concave lens surfaces, for varying the intensity of the light transmitted from said transmission portion to the different graphic areas.Type: GrantFiled: October 30, 2015Date of Patent: April 16, 2019Assignee: MAGNETI MARELLI S.p.A.Inventors: Marco Maraldo, Sylvain Mouard
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Patent number: 10261238Abstract: The present disclosure provides a backlight source and a display device. The backlight source includes a back plate, a light bar and a rubber strip. The back plate is made of a metal material and includes a base, one first side portion and three second side portions, wherein the first side portion and the three second side portions are connected to the base and arranged at four sides of the base respectively. The first side portion includes a parallel part which is parallel to the base and a connection part which connects the parallel part to the base. The light bar is fixed on the parallel part. The rubber strip is fixed on at least one of the second side portions. An upper surface of the rubber strip and a surface of the parallel part form a support surface.Type: GrantFiled: June 28, 2016Date of Patent: April 16, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD.Inventor: Wenjun Li
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Patent number: 10261239Abstract: The present disclosure provides a housing structure of a backlight module, a backlight module and a display device. The housing structure of a backlight module includes a back plate and a plastic frame. The back plate includes a bottom plate, a first sidewall extending perpendicularly from one side of the bottom plate, and a first engaging portion disposed on the first sidewall. The plastic frame includes a second sidewall, a slot disposed on the second sidewall, and a second engaging portion disposed on a side surface of the slot. The slot is elastically deformable by a force. The first sidewall can be clamped in the slot. The first engaging portion can be engaged with the second engaging portion.Type: GrantFiled: May 22, 2018Date of Patent: April 16, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE DISPLAY LIGHTING CO., LTD.Inventor: Chunsheng Wu
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Patent number: 10261240Abstract: A backlight module includes a light guide plate including a light incident surface having first and second light incident sections and a light propagation track that extends from the first light incident section into the light guide plate and delimits a light propagation path and is formed with an opening. A light bar includes first and second light sources respectively corresponding to the first and second light incident sections to allow light to enter the light propagation path to be reflected by the light propagation track for outward emission and allow light to enter the light guide plate for outward emission from the light emission surface. A control circuit is electrically connected to the first light source and the second light source for controlling ON/OFF states of the first light source and the second light source thereby allowing for displaying in a sectionized fashion.Type: GrantFiled: April 21, 2016Date of Patent: April 16, 2019Assignee: Wuhan China Star Optoelectronics Technology Co., LtdInventors: Qian Chen, Shih-hsiang Chen
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Patent number: 10261241Abstract: An illuminated window having an illuminate film, controller device, and wiring connection in between two pieces of glass forming the window. The window displays at least one of illuminated letters and numbers in order to provide information to a viewer.Type: GrantFiled: February 3, 2002Date of Patent: April 16, 2019Inventors: Jerry Alexander, Sr., Jerry Dewayne Alexander, Jr.
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Patent number: 10261242Abstract: An optical fiber package is described comprising a light transmitting core having a core diameter, a coating layer surrounding the core, and wherein the amount of chlorine in the light transmitting core region is homogeneous and comprises at least 3000 ppm. The fiber package is such that the optical fiber core exhibits a reduction in the hydrogen induced attenuation losses. A method for fabricating the optical fiber package is also disclosed.Type: GrantFiled: May 21, 2015Date of Patent: April 16, 2019Assignee: Fibercore LimitedInventors: Christopher Emslie, Peter Maton, Laurence Cooper, Aurélien Bergonzo