Photoelectric Patents (Class 356/218)
  • Patent number: 11324484
    Abstract: An ultrasound circuit comprising a multi-stage trans-impedance amplifier (TIA) is described. The TIA is coupled to an ultrasonic transducer to amplify an electrical signal generated by the ultrasonic transducer in response to receiving an ultrasound signal. The TIA may include multiple stages, at least two of which operate with different supply voltages. The TIA may be followed by further processing circuitry configured to filter, amplify, and digitize the signal produced by the TIA.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 10, 2022
    Inventors: Amandeep Singh, Kailiang Chen, Tyler S. Ralston
  • Patent number: 11300773
    Abstract: An apparatus and method for generating a mid-infrared region image of a specimen are disclosed. The apparatus includes a mid-infrared region laser that generates a first light beam, and a stage adapted to carry a specimen to be scanned. An optical assembly focuses the first light beam to a point on the specimen. A first light detector measures a first intensity of light leaving the point on the specimen. A stage actuator assembly causes the specimen to move relative to the point in two dimensions. A controller forms a mid-infrared region image from the first intensity. The image can be based on reflected or transmitted light. The maximum size of the imaged area is determined by a scanning assembly that moves in a first direction relative to the stage, the stage moving in a direction orthogonal to the first direction.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 12, 2022
    Assignee: Agilent Technologies, Inc.
    Inventors: Charles Hoke, Varun Raghunathan
  • Patent number: 11135964
    Abstract: An apparatus for controlling an intelligent headlamp may include: a capturing unit configured to capture a forward image of a vehicle; a lamp driving unit configured to independently drive LEDs of a headlamp configured as a matrix LED; a storage unit configured to store an initial origin point, a changed origin point and an offset for adjusting the position of the headlamp; and a control unit configured to control the lamp driving unit to turn on the headlamp, detect an origin point from the forward image inputted from the capturing unit, set the offset for adjusting the position of the headlamp by comparing the detected origin point to the initial origin point or the changed origin point stored in the storage unit, and store a changed origin point, newly set based on the detected origin point, and the offset in the storage unit.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: October 5, 2021
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Myeong Je Kim
  • Patent number: 11125863
    Abstract: A correction device including a photon number counting unit that counts a photon number on the basis of an output signal output from a light receiving unit, a correction value acquiring unit that acquires a correction value corresponding to the photon number, and a correction unit that performs correction based on the correction value.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 21, 2021
    Inventors: Toyoharu Oohata, Takahiro Koyama, Tomoki Ono
  • Patent number: 11119641
    Abstract: An electronic apparatus that comprises a control unit is disclosed. The control unit displays a user interface for comparably presenting: first brightness that is brightness of an image in which a subject is shot with proper exposure that is based on a first reference value, second brightness that is brightness of an image in which the subject is shot with proper exposure that is based on a second reference value, and third brightness that is brightness of an image in which the subject is shot under current exposure conditions.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: September 14, 2021
    Inventor: Tadayoshi Ono
  • Patent number: 11041752
    Abstract: A daylight sensor for automated window-shading applications that incorporates at least one (and optionally more than one) of three aspects: an optimized Field-of-View (FOV), angle-diversity sensing (via at least two sub-sensors with different FOVs, whose outputs are processed in a particular way to yield the overall sensor output), and multi-spectral sensing (via at least two sub-sensors with differing spectral responses and, optionally, different FOVs, whose outputs are processed in a particular way to yield the sensor output). These aspects improve the correlation between the sensor output and the subjectively-perceived daylight level (especially under glare-inducing conditions, such as in the presence of low-angle direct sunlight), thereby enabling more effective automatic control of daylight admitted into a room.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: June 22, 2021
    Inventor: Pradeep Pranjivan Popat
  • Patent number: 11042764
    Abstract: A device for detecting vehicle lights in an image, the device is configured to receive an image captured by a camera, wherein the image comprises an array of pixels and each pixel of the image has a respective scene brightness value, compress the image to generate a compressed image, wherein the compressed image comprises an array of pixels and each pixel of the compressed image has a respective grey value, calculate for each grey value in the compressed image a corresponding scene brightness value in the image, and detect vehicle lights in the compressed image by using the calculated scene brightness values.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: June 22, 2021
    Assignee: Aptiv Technologies Limited
    Inventors: Monika Heift, Klaus Friedrichs, Andre Paus
  • Patent number: 10931905
    Abstract: A pixel array in a three-dimensional image sensor includes depth pixels and an ambient light cancellation (ALC) circuit. The depth pixels operate in response to photo control signals having different phases, and generate distance information of an object based on light reflected by the object. The ALC circuit removes an ambient light component from the reflected light, and is shared by the depth pixels. Each depth pixel includes a photoelectric conversion region, a floating diffusion region, a photo gate, and a drain gate. The photoelectric conversion region collects photo charges based on the reflected light. The floating diffusion region accumulates the photo charges. The photo gate is activated in response to one of the photo control signals. The photoelectric conversion region accumulates the photo charges when the photo gate is activated, and the photo charges in the photoelectric conversion region are released when the drain gate is activated.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 23, 2021
    Inventors: Young-Gu Jin, Min-Sun Keel, Young-Chan Kim
  • Patent number: 10861374
    Abstract: A display apparatus including a display panel is provided. The display panel has a plurality of display blocks, wherein each display block includes a light conversion circuit, a pixel array, and a data voltage selection circuit. The light conversion circuit receives the light pulse signal and has a pull-up circuit and a pull-down circuit, wherein the pull-up circuit and the pull-down circuit are coupled between a system high voltage and a system low voltage, and the pull-up circuit and the pull-down circuit output the system high voltage or system low voltage according to the light pulse signal to form a voltage pulse signal. The data voltage selection circuit is coupled to the light conversion circuit and the pixel array and receives an AC waveform voltage to supply a data signal to the pixel array according to the voltage pulse signal.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: December 8, 2020
    Assignee: Au Optronics Corporation
    Inventors: Ya-Hsiang Tai, Chi-Hao Lin, Yu-Sheng Huang, Chang-Yi Li
  • Patent number: 10739670
    Abstract: A projection display system may be used to display projected images on an image display layer embedded on the surface of an object. The projection display system may include an image capturing device, a projector unit and a passive screen. The passive screen may include a display layer effecting display of at least one image projected thereon. The passive screen is further placeable on a surface of an object in the manner that said image capturing device in optical communication with said passive screen identifies physical boundaries of said passive screen and the projector unit projects at least one image scaled onto the passive screen within the boundaries thereof.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: August 11, 2020
    Assignee: Augmency Teknoloji Sanayi Anonim Sirketi
    Inventors: Hakan Urey, Shoaib Soomro
  • Patent number: 10732030
    Abstract: The present invention provides methods and devices for determining end of life of a light fixture by comparing the light output of a control LED of the fixture with the light output of an illumination LED of the fixture. The control LED is energized for a short period of time for the purpose of measuring its light output. The illumination LED is energized for the duration of time of the light fixture itself. In this way, the amount of degradation of the illumination LED can be determined by comparison with the control LED. If the light output of the illumination LED falls below a threshold level, actions may be take, such as, for example, sounding an alarm.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 4, 2020
    Assignee: Astronics Corporation
    Inventor: Jeffery Basil Lendaro
  • Patent number: 10725284
    Abstract: A magnification device including a housing having a distal open end and a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal open end, and one or more eye lenses adjacent the proximal open end, the optical system produced a desired level of magnification; and a filtering system having first filter selectively filtering a first group of wavelengths and a second filter selective filtering a second group of wavelengths. The first and second filters having an optical density selected based on a magnification level of the optical system. A vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is also disclosed, wherein the magnification devices include filters that have optical densities based on a magnification level.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 28, 2020
    Assignee: Designs for Vision, Inc.
    Inventors: Richard E. Feinbloom, Liviu Steier
  • Patent number: 10502939
    Abstract: The invention relates to a homogenizer having an input surface and an output surface which are incongruent to one another, at least one inclined surface extending between the input surface and the output surface. The inclined surface is corrugated. According to the invention, the homogenizer is designed as a hollow element which surrounds the LED chips (14) reflectively.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 10, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Bruno Senn, Markus Pauler
  • Patent number: 10490686
    Abstract: A photoconductor for emitting and/or receiving electromagnetic waves is provided. The photoconductor comprises a material region comprising a first and a second section, wherein the second section provides a higher density of charge carrier trapping centers and/or recombination centers than the first section, and a confinement generating a sub-band structure of the charge carrier energy states in the material region. The first and the second section are arranged and configured in such a manner that a maximum of the carrier probability density of the sub-band ground state is located in one of these sections and a maximum of the carrier probability density of an excited sub-band state is located in the respective other section.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: November 26, 2019
    Inventors: Roman Dietz, Björn Globisch, Thorsten Göbel, W. Ted Masselink, Mykhaylo Semtsiv
  • Patent number: 10482197
    Abstract: A computer implemented method of estimating solar irradiance, the method comprising: constructing a reference irradiance set of tuples; constructing a reference predictor set of tuples, merging the reference irradiance set of tuples and the reference predictor set of tuples by matching numerical identifiers for a location for which a global horizontal irradiance exists in the reference irradiance set of tuples and the timestamp with the numerical identifier for a particular location in the reference predictor set of tuples and the timestamp to provide a reference data set of tuples; and estimating the global horizontal irradiance for a specific location and a timestamp by minimizing the least squares error between the reference predictor set of tuples and the reference irradiance set of tuples to provide a set of estimated global horizontal irradiance values for a specific location and timestamp.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 19, 2019
    Assignee: LOCUS ENERGY, INC.
    Inventors: Charles McBrearty, Shawn Kerrigan, Michael Herzig
  • Patent number: 10422630
    Abstract: Devices, systems, and methods for determining a distance between at least two points are disclosed and described, wherein interferometry technology is utilized to determine such distances.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 24, 2019
    Assignee: University of Utah Research Foundation
    Inventor: Clayton C. Williams
  • Patent number: 10318472
    Abstract: A multisite sensing system including two or more analyte sensors, an interface device, and a shared bus. The interface device may be configured to receive a power signal and generate power for powering the analyte sensors and to convey data signals generated by the analyte sensors. The shared bus connected to the interface device and each of the analyte sensors and configured to provide the power generated by the interface device to the analyte sensors and to provide the data signals generated by the analyte sensors to the interface device. The interface device may be an inductive element. The shared bus may be a two wire, multiplexed bus. The analyte sensors may be spatially separated for analyte sensing at least two different locations. The analyte sensors may generate data signals indicative of the presence and/or amount of the same analyte or of one or more different analytes.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 11, 2019
    Assignee: Senseonics, Incorporated
    Inventor: Andrew DeHennis
  • Patent number: 10267729
    Abstract: The invention is directed to improved systems, methods, and computer readable media for detecting gas leaks. More particularly, the invention detects gas leaks or discharges, such as methane or any other suitable gases, by analyzing reflected or direct light that passes through a region of enhanced target gas concentration. The invention collects light and processes spectral data of the light. All molecules are subject to rotational motions, vibrational motions, and/or combinations thereof (rovibrational motions), in which the atoms in the molecule are vibrating with respect to each other and/or rotating around each other. When the light passes through the region of the target gas, a portion of the light with certain wavelengths will be absorbed by the target gas due to the rovibrational motions of the target gas molecules. By analyzing the magnitude of absorption at certain wavelengths, one can determine the concentration of certain target gas or gases.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: April 23, 2019
    Inventors: Brian Butler Jones, Steven William Deiker
  • Patent number: 10102178
    Abstract: A multisite sensing system including two or more analyte sensors, an interface device, and a shared bus. The interface device may be configured to receive a power signal and generate power for powering the analyte sensors and to convey data signals generated by the analyte sensors. The shared bus connected to the interface device and each of the analyte sensors and configured to provide the power generated by the interface device to the analyte sensors and to provide the data signals generated by the analyte sensors to the interface device. The interface device may be an inductive element. The shared bus may be a two wire, multiplexed bus. The analyte sensors may be spatially separated for analyte sensing at least two different locations. The analyte sensors may generate data signals indicative of the presence and/or amount of the same analyte or of one or more different analytes.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 16, 2018
    Assignee: Senseonics, Incorporated
    Inventor: Andrew DeHennis
  • Patent number: 10088492
    Abstract: An irradiation device for photopheresis, comprising an exposure chamber configured to receive an illumination container holding a target cell suspension, an irradiation transmitter configured to irradiate the illumination container and target cell suspension, an irradiation receiver configured to detect absorption of radiation from the irradiation transmitter, and a processing circuit coupled to the irradiation receiver and configured to determine whether a hematocrit of the target cell suspension exceeds a predetermined threshold hematocrit and to treat the target cell suspension with a treatment dosage of radiation if the predetermined threshold is exceeded.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 2, 2018
    Inventors: Christopher J Wegener, Katherine N Radwanski
  • Patent number: 9985583
    Abstract: The performance of photosensitive devices over time may be tested by configuring a photosensitive device test system that includes a light source plate that exposes photosensitive devices within a container to a specified light intensity. The light intensity may be adjusted by a programmable power source according to one or more thresholds. A test may last for a set duration with performance measurements being taken at predetermined intervals throughout the duration. Feedback from the photosensitive device test system may be recorded to determine whether to increase light intensity, to stop testing, to continue testing, and whether one or more environmental conditions should be altered. Measurements may be sent to a client for analysis and display to a user.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 29, 2018
    Assignee: HEE Solar, L.L.C.
    Inventors: Michael D. Irwin, Jerome Lovelace, Kamil Mielczarek
  • Patent number: 9930320
    Abstract: Systems, methods, and computer readable media to resolve three dimensional spatial information of cameras used to construct 3D images. Various embodiments perform communication synchronization between a first image capture system and one or more other image capture systems and generate a first flash pulse that projects a light pattern into an environment. An image is captured that includes the light pattern and a modulated optical signal encoded with an identifier of one of the first image capture system and related-camera information. A second flash from another image capture systems may flash at a second time based on the communication synchronization. During the second flash, the first image capture system captures a second image of the environment. Based on the first and second images, the first image capture system determines the orientation of the second image capture system relative to the first image capture system.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: March 27, 2018
    Assignee: Apple Inc.
    Inventors: Denis G. Chen, Chin Han Lin
  • Patent number: 9883148
    Abstract: A color mask for an image sensor of a vehicle camera, the color mask having a matrix configuration of filter pixels having different spectral transmission behaviors, some filter pixels being transparent filter pixels, which are at least essentially uniformly transparent for optical light, and additional filter pixels being color pixels having a wavelength-selective transmission behavior, the color mask having a color pattern as a repeating configuration of filter pixels having a specific transmission behavior. The color mask has a central area having a first color pattern and a lower area and/or an upper area having a second color pattern, the first color pattern and the second color pattern being different, and the first color pattern containing transparent filter pixels.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: January 30, 2018
    Inventors: Ulrich Seger, Alexander Wuerz-Wessel, Paul Ruhnau
  • Patent number: 9841383
    Abstract: A method for characterizing the uniformity of a material includes selecting a set of size scales at which to measure uniformity within an area of interest in an image of the material; suppressing features in the image smaller than a selected size scale of interest within the set of size scales; dividing the image into patches equal to the size scale of interest; and calculating a uniformity value within each patch.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: December 12, 2017
    Inventors: Evan J. Ribnick, John A. Ramthun, David D. Miller
  • Patent number: 9735070
    Abstract: Manufacturing a light source module may include mounting light emitting devices on substrates on an upper surface of a carrier, mounting optical devices to cover the light emitting devices, and inspecting the light emitting devices and the optical devices based on selectively capturing images thereof. Images may be captured based on controlling a light source module scanner assembly on the carrier. The substrates may extend in a first direction and may be spaced apart in a second direction. Controlling the light source module scanner assembly may include moving the light source module scanner assembly along a selected direction to position the light source module scanner assembly on at least one of the light emitting devices and the optical devices. The direction may be selected based on the quantity of substrates and the quantity of light emitting devices and optical devices on each of the substrates.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: August 15, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae Seo Park, Oh Seok Kwon, Ka Ram Lee, Jong Tae Kim
  • Patent number: 9735891
    Abstract: A system and method involve propagating, from one or more optical sources connected to a platform, more than one optical signal through a surrounding medium towards a reflective surface. Reflected optical signals, representing the propagated optical signals reflected off of the reflective surface, are then detected using a detection system coupled to the platform. An ideal optical wavelength is then selected for optical communication from the platform within the surrounding medium based upon one or more characteristics of the detected reflected optical signals.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 15, 2017
    Inventors: Burton H. Neuner, III, Ryan P. Lu, Ayax D. Ramirez, Michael G. Lovern
  • Patent number: 9726714
    Abstract: To provide a sensor device which is capable of high temperature detection using self-heat generation without providing a dedicated terminal and suppresses an increase in cost with an increase in chip occupation area due to the addition of a test pad. A sensor device is configured to include an active logic switching circuit for switching an active logic of an output driver and perform a heating inspection while switching the active logic of the output driver during an inspection process with the output driver as a heat generation source.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: August 8, 2017
    Inventor: Tomoki Hikichi
  • Patent number: 9647771
    Abstract: Systems and methods for wavelength optimization for underwater optical communication can include a plurality of n lasers having different wavelengths ?i for i=1 to n, a beam splitter and a corner retro-reflector. The plurality of n lasers can simultaneously illuminate the beam splitter along a coincident axis. The plurality of n lasers can be selectively blocked so that only one laser wavelength ?i at a time impinges on the beam splitter. A portion passes through the beam splitter to establish a reference signal, while the remainder is reflected off the corner retro-reflector. A portion of return illumination passes through the beam splitter to establish a return signal. The process can be repeated for each of n lasers for i=1 to n. The ?i wavelength where the normalized signal-to-noise differential between the reference signal and return signal is the minimum can be the optimum communication wavelength.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 9, 2017
    Assignee: The United States of America, as Represented by the Secretary of the Navy
    Inventors: Burton H. Neuner, III, Alexandru Hening, Bienvenido Melvin Pascoguin
  • Patent number: 9641825
    Abstract: A camera for determining distances to a scene, the camera comprising: a light source comprising a VCSEL controllable to illuminate the scene with a train of pulses of light having a characteristic spectrum; a photosurface; optics for imaging light reflected from the light pulses by the scene on the photosurface; and a shutter operable to gate the photosurface selectively on and off for light in the spectrum.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: May 2, 2017
    Inventors: Asaf Pelman, Avner Ishay Sander, Giora Yahav
  • Patent number: 9618387
    Abstract: A method and associated EUV lithography apparatus for determining the phase angle at a free interface (17) of an optical element (13) provided with a multilayer coating (16) that reflects EUV radiation and/or for determining the thickness (d) of a contamination layer (26) formed on the multilayer coating (16). The multilayer coating (16) is irradiated with EUV radiation, a photocurrent (IP) generated during the irradiation is measured, and the phase angle at the free interface (17) and/or the thickness (d) of the contamination layer (26) is determined on the basis of a predefined relationship between the phase angle and/or the thickness (d) and the measured photocurrent (IP). The measured photocurrent (IP) is generated from the entire wavelength and angle-of-incidence distribution of the EUV radiation impinging on the multilayer coating (16).
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: April 11, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Michael Gerhard
  • Patent number: 9601060
    Abstract: The disclosure of the present invention provides an image processing method and apparatus. The method comprises acquiring a single picture image displayed on a display panel; determining an average value of each area relating to a display parameter, after the acquired single picture image is divided into a plurality of areas according to a preset regulation; determining differences between average values of respective two adjacent areas, and determining a uniformity of the single picture image displayed on the display panel in accordance with a relationship between each difference and a threshold of a resolvable picture uniformity by an human eye; adjusting the difference between the average values of the respective two adjacent areas to be not greater than the threshold of the resolvable picture uniformity by the human eye, when determining the single picture image displayed on the display panel to be not uniform.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 21, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Jung Chul Gyu
  • Patent number: 9564967
    Abstract: A computerized system and method for managing a passive optical network (PON) is disclosed. The system includes a detection and analysis module adapted for receiving uploaded measurement data from an optical line terminal (OLT) and at least one optical network terminal (ONT), and at least one of technical tools data, service failure data, and outside plant data. The detection and analysis module is adapted for determining a source of failure or potential failure in the PON by correlating the uploaded measurement data and the at least one of technical tools data and service failure data with information stored in a memory medium for the OLT and each ONT.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 7, 2017
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Kapil Shrikhande, Kent George McCammon, Kevin Xiangkai Meng, Raghvendra Savoor
  • Patent number: 9546989
    Abstract: A method for measuring the concentration of a gas component in a measurement gas using a gas analyzer comprises varying the wavelength of the light of a wavelength-tunable light source within periodically consecutive scan intervals for wavelength-dependent scanning of a gas component absorption line of interest. The method also comprises modulating the wavelength of the light of the wavelength-tunable light source with a frequency, guiding the modulated light through the measurement gas onto a detector and demodulating a measurement signal generated by the detector in the event of a harmonic of the frequency. The method further comprises producing a measurement result by fitting a desired curve to the profile of the demodulated measurement signal. A function orthogonal to the desired curve is provided, and an orthogonal component of the measurement result is produced by fitting the orthogonal function to the profile of the demodulated measurement signal.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: January 17, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ralf Bitter, Thomas Hankiewicz, Christoph Wolfgang Marquardt, Jan Nygren, Kai-Uwe Pleban, Franz Steinbacher
  • Patent number: 9534953
    Abstract: A laser output measuring apparatus in which an optical separator is disposed in a position that is rotated by a predetermined angle about an optical axis of a laser beam converged by a lens, and further rotated by a predetermined angle about the optical axis of the laser beam and a straight line perpendicular to an incident surface of the laser beam.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 3, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Fumio Shoda, Hidenori Fukahori, Takayuki Yanagisawa, Mitoru Yabe, Tetsuya Nishimura, Shuhei Yamamoto, Yoko Inoue, Tetsuo Funakura
  • Patent number: 9511708
    Abstract: A method and system are provided to image an external scene by employing a custom image sensor. The custom image sensor may use a GRRB array to filter the images of oncoming and preceding vehicle taillights captured by a vehicle camera. The method and system may also calculate a GRRB color metric for use in the custom image sensor by performing interpolation on a number of color channels, summing the brightness values for each of the color channels interpolated, normalizing each of the brightness values, and converting the normalized brightness values from an RGB scale to a linear scale of non-red to red.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: December 6, 2016
    Inventors: David J. Wright, David M. Falb
  • Patent number: 9316687
    Abstract: Disclosed is a method for testing a light-emitting device comprising the steps of: providing a light-emitting device comprising a plurality of light-emitting diodes; driving the plurality of the light-emitting diodes with a current; generating an image of the light-emitting device; and determining a luminous intensity of each of the light-emitting diodes; wherein the magnitude of the current is determined such that the current density driving each of the light-emitting diodes is smaller than or equal to 300 mA/mm2.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: April 19, 2016
    Inventors: Chia-Liang Hsu, Chih-Chiang Lu
  • Patent number: 9304596
    Abstract: A device and method to detect a gesture performed by an object in touch-less communication with the device are described. The device includes two or more ambient light sensors arranged at respective first surface locations of the device, each of the two or more ambient light sensors sensing light intensity at the respective first surface location. The device also includes one or more processors to control one or more light sources at respective second surface locations of the device based on the light intensity sensed by the two or more ambient light sensors, calibrate the two or more ambient light sensors based on the one or more light sources, and detect the gesture based on the light intensity sensed by each of the two or more ambient light sensors.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: April 5, 2016
    Assignee: BlackBerry Limited
    Inventors: Peter Mankowski, Weimin Rang, Xiaowei Wu
  • Patent number: 9150146
    Abstract: A light control apparatus for a vehicle may include: an operation unit configured to receive a selection for an auto-light function; a control unit configured to determine whether or not a light operation condition is satisfied based on position information provided from a GPS module and plural pieces of information for operating a light unit, received through a wireless communication module, and output a light operating signal according to the determination result, when the auto-light function is selected through the operation unit; and a light control unit configured to operate a light unit according to the light operating signal provided from the control unit.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: October 6, 2015
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Han Yeoung Bae
  • Patent number: 9129549
    Abstract: An automatic brightness adjustment for devices with displays includes the capability to assess ambient light. The assessment may be made using circuitry, such as a light meter circuit, by exploiting exposure control circuitry, or using other approaches. The ambient light value is sent to a brightness adjustment driver, which may employ a look-up table to keep track of brightness adjustments for particular ambient conditions. The look-up table may include distinct adjustment values.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 8, 2015
    Assignee: Intel Corporation
    Inventor: Cynthia S. Bell
  • Patent number: 9125278
    Abstract: A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel drive current to account for luminance degradation of the pixel that results from the pixel aging.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: September 1, 2015
    Assignee: Ignis Innovation Inc.
    Inventors: Arokia Nathan, Gholamreza Chaji
  • Publication number: 20150138823
    Abstract: Generally, the present disclosure provides for a light duct sensor that can monitor an average light flux through light duct useful for architectural lighting. The present disclosure provides for a system that allows a minimally obtrusive sampling of the light in a duct. It samples a small fraction of a cross sectional area of a light duct that is distributed across potentially the entire cross sectional area, without creating a significant disturbance to the light.
    Type: Application
    Filed: April 5, 2013
    Publication date: May 21, 2015
    Inventors: Thomas R. Corrigan, Patrick R. Fleming
  • Publication number: 20150131086
    Abstract: A driving environment detection device acquires a captured image of the direction the host vehicle is travelling in, and from the captured image, extracts parameters relating to brightness of a road surface for a road driven by the host vehicle. Then, on the basis of the parameters, the driving environment of the vehicle is estimated. By way of such a light control system, it is possible to more accurately detect ambient brightness by estimating the driving environment in accordance with the parameters related to the brightness of the road surface. Therefore, it is possible to accurately detect the driving environment.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 14, 2015
    Inventors: Taiji Morishita, Hironori Sato
  • Patent number: 9019504
    Abstract: A transportable goniospectrometer with a constant observation center for a radiometric measurement of the reflection of a natural surface includes a spectrometer having an optical unit and a sensor. A main pillar has a lower and an upper pillar end. An arc has a fixed and a free arc end. A slide is disposed displaceably and fixably along the arc. The slide carries the optical unit orientated towards the observation center. A cantilever has a fixed cantilever end connected to the upper pillar end via a screw connection, and a free cantilever end which has a suspension that is rotatable and fixable about a vertical axis. The suspension is connected to the sensor and to the fixed arc end of the arc. The suspension is configured to position the arc at a distance of the arc radius of the arc above the natural surface.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: April 28, 2015
    Assignee: Alfred-Wegener-Institut Helmholtz- Zentrum Fuer Polar- und Meeresforschung
    Inventors: Marcel Buchhorn, Reinhold Petereit
  • Publication number: 20150105873
    Abstract: The invention relates to an optoelectronic safety sensor comprising an electronic measuring device for generating measured signals which depend on a state of a safety zone observed by the safety sensor and an electronic evaluation unit for evaluating the measured signals. The electronic evaluation unit comprises a programmable logic controller integrated into the optoelectronic safety sensor for the logic evaluation of logic state variables which are derived from the measured signals.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 16, 2015
    Inventors: Manfred HABERER, Andreas SCHIEBER, Frank HABERSTROH
  • Publication number: 20150092186
    Abstract: A method, apparatus, and a computer program is provided. The method comprises: determining an ambient light value from ambient light data provided by at least one ambient light sensor, in dependence upon the spectral distribution of the ambient light data provided by the at least one ambient light sensor and a manufacturer of the at least one ambient light sensor.
    Type: Application
    Filed: May 8, 2012
    Publication date: April 2, 2015
    Applicant: Nokia Corporation
    Inventors: Ralf Wieser, Somakanthan Somalingam, Max Lindfors, Samu Matias Kallio
  • Patent number: 8982341
    Abstract: A light distribution characteristic measurement apparatus includes: a detecting unit for detecting light from a light source; a mirror for reflecting the light from the light source to direct the light to the detecting unit; a movement mechanism for moving the detecting unit and the mirror relatively to the light source; a rotation mechanism for rotating the mirror while maintaining an optical path length from the light source to the detecting unit; and a processor adapted to calculate the light distribution characteristic of the light source, based on a plurality of measurement results that are detected by the detecting unit under a condition that the detecting unit and the mirror are arranged at a plurality of measurement positions relative to the light source and the mirror is oriented at different rotational angles for each measurement position.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 17, 2015
    Assignee: Otsuka Electronics Co., Ltd.
    Inventor: Yoshi Enami
  • Publication number: 20150069920
    Abstract: The present invention relates to a method of detecting a failed luminaire and/or light sensor in a lighting system comprising M luminaires and N light sensors. The elements Dsl of an N×M transfer matrix D expresses how each luminaire l affect a light sensor s with respect to sensed light intensity, wherein s=1, 2, . . . N, and l=1, 2, . . . , M.
    Type: Application
    Filed: April 12, 2013
    Publication date: March 12, 2015
    Inventors: Theodorus Jacobus Johannes Denteneer, Oscar Garcia Morchon, Ashish Vijay Pandharipande, David Ricardo Caicedo Fernández
  • Patent number: 8976346
    Abstract: An optical coupling lens includes a refraction surface, a first total reflection surface, a second total reflection surface, a first aligning member and a second aligning member. The refraction surface, the first total reflection surface and the second total reflection surface are orderly connected end to end. The first aligning member and the second aligning member are formed on the refraction surface.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: March 10, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Yi Hung
  • Patent number: 8970851
    Abstract: A method and device for detecting a precision of a dish parabolic reflecting mirror are provided. Accurate coordinate values of positions on an X-axis and a Y-axis may be obtained by adjusting and controlling a double helix lifting mechanism, a 360-degree plane rotary mechanism, a telescoping mechanism, and an extension rod, and using a photoelectric position sensor with a high precision and the extension rod being measured. Then, the curved surface of the dish paraboloid reflecting mirror being detected is obtained by fitting sampling values of the coordinate values of spatial positions of the detecting points at various, and the precision error value by comparing the curved surface of the dish paraboloid reflecting mirror being detected to the theoretical curved surface, thereby realizing detection of the precision of the curved surface of the dish paraboloid reflecting mirror.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: March 3, 2015
    Assignees: Xiangtan Liyuan Electric Tooling Co. Ltd., Xiangtan Electric Manufacturing Co., Ltd.
    Inventors: Xinhua Tan, Kai Zhu
  • Patent number: 8947652
    Abstract: The disclosure provides a photoelectric sensor that provides useful information to set measurement conditions. The photoelectric sensor includes a light emitting unit having a light emitting element configured to emit detection light toward a detection area, a light receiving unit having a light receiving element configured to receive the detection light from the detection area and to obtain a detection value corresponding to the amount of light received, and a display unit configured to display information about the detection value in the light receiving unit. When the detection value varies across a predetermined threshold, the display unit displays a transit time that is the time from when the detection value crosses the predetermined threshold until when it crosses the predetermined threshold again, and a variation amount of the detection value in the variation.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: February 3, 2015
    Assignee: Omron Corporation
    Inventors: Soji Ohmae, Kiyohiko Gondo, Yusuke Iida