Patents by Inventor Taeyoung Park

Taeyoung Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10928251
    Abstract: Embodiments of the present invention are directed towards systems, methods and computer program products for correcting inter-instrumentation variation among color measurement devices. In one particular implementation, a method for correcting inter-instrument variation among color measurement devices includes obtaining a set of color measurements of an item under analysis. The described approach also includes accessing a conversion model, wherein the conversion module has been generated using one or more ANN back propagated over a collection of data points, where the data points correspond to measurements of a color standard using devices from a control device batch and a test device batch. Using the conversion module, a processor is configured to transform the set of color measurements into a calibrated color measurement set. The calibrated color measurement set is then output to at least one display, memory or remote computing device.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 23, 2021
    Assignee: DATACOLOR INC.
    Inventors: Taeyoung Park, Hong Wei, Zhiling Xu, Venkata R. Thumu
  • Publication number: 20200408599
    Abstract: A method includes determining a fielded color measurement instrument is not calibrated to measure light emitted by a fielded light emitting device, assembling a calibration matrix, such that a product of the calibration matrix multiplied by a response of the fielded color measurement instrument to the light emitted by the fielded light emitting device is a triplet that corresponds to a Commission Internationale de L'éclairage XYZ color space, wherein the calibration matrix contains measurements made by the fielded color measurement instrument of a first plurality of lights emitted by the fielded light emitting device and measurements made by a spectroradiometer of a second plurality of lights emitted by a reference light emitting device of a same make and model as the fielded light emitting device, wherein the spectroradiometer is located remotely from the fielded color measurement instrument, and storing the calibration matrix on the fielded color measurement instrument.
    Type: Application
    Filed: June 25, 2019
    Publication date: December 31, 2020
    Inventors: Nilesh B. Dhote, Taeyoung Park
  • Publication number: 20200243010
    Abstract: An organic light emitting display includes a display panel including a plurality of pixels, each pixel among the plurality of pixels including an organic light emitting diode (OLED) connected between a first potential driving power having an initial value and a second potential driving power, and a driving thin film transistor (TFT) connected between the first potential driving power and the second potential driving power; a driver integrated circuit (IC) configured to drive the display panel; a power IC configured to apply the first potential driving power to the display panel; and a sensing unit configured to sense changes in driving characteristics of the display panel each time the first potential driving power varies from an initial value of the first potential driving power in a state where the initial value of the first potential driving power and a test pattern are applied to the display panel.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyunjae LEE, Taeyoung PARK, Dongjun CHOI, Dongsup SHIM, Ohgun KWON
  • Patent number: 10718669
    Abstract: In one example, an initial transform is stored for converting wavelength channel responses of a color measurement instrument to color readings. The initial transform is set in-factory by a manufacturer of the color measurement device. A color selection of a sample is subsequently retrieved from a database, where the color selection was made by an end user in response to a color reading by the color measurement instrument using the initial transform. An adjustment to the initial transform is calculated using the color selection. The adjustment is then sent to the color measurement instrument for use in making future color measurements.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: July 21, 2020
    Assignee: DATACOLOR, INC.
    Inventors: Zhiling Xu, Taeyoung Park
  • Patent number: 10716221
    Abstract: Provided is a method for manufacturing an electronic device. The method includes providing a panel to a stage, providing a circuit board, aligning the circuit board so that first pads of the circuit board face a first pad area of the panel and second pads of the circuit board face a second pad area of the panel, and compressing a first portion of the circuit board on which the first pads are arranged to the first pad area of the panel. The aligning of the circuit board occurs via by external contact on one surface of the first portion of the circuit board and one surface of the second portion of the circuit board.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: July 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-hee Lee, Sang-hoon Back, Daeho Yang, Seungjoo Lee, Myung-gil Choi, Taeyoung Park
  • Patent number: 10692245
    Abstract: A method is provided for identifying colors across illuminants using a processor configured by code executing therein, the method comprising capturing a sample image with an image recording device, the image including pixels representing a color sample under analysis and a color reference chart. The processor is also configured to execute comparing the color values of pixels representing the color reference chart of the sample image to the pixel values corresponding to a plurality of entries within a plurality of color reference datasets to determine the dataset representing the closest match of the illumination present at the time the sample image was captured. Using the identified illuminant, the color reference dataset having the closest illuminant is searched for the color under analysis.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 23, 2020
    Assignee: DATACOLOR INC.
    Inventors: Zhiling Xu, Taeyoung Park
  • Patent number: 10672336
    Abstract: A method for driving an organic light emitting display according to an embodiment includes applying an initial value of a high potential driving power and a test pattern to a display panel and sensing changes in driving characteristics of the display panel while varying a voltage level of the high potential driving power from the initial value, deciding whether or not a sensed driving characteristic value of the display panel satisfies a predetermined condition, setting a voltage level of the high potential driving power obtained when the sensed driving characteristic value satisfies the predetermined condition, as a reference value of the high potential driving power, and adding a voltage margin to the reference value of the high potential driving power to determine a final value of the high potential driving power, and driving the display panel using the final value of the high potential driving power.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 2, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyunjae Lee, Taeyoung Park, Dongjun Choi, Dongsup Shim, Ohgun Kwon
  • Publication number: 20200103284
    Abstract: Embodiments of the present invention are directed towards systems, methods and computer program products for correcting inter-instrumentation variation among color measurement devices. In one particular implementation, a method for correcting inter-instrument variation among color measurement devices includes obtaining a set of color measurements of an item under analysis. The described approach also includes accessing a conversion model, wherein the conversion module has been generated using one or more ANN back propagated over a collection of data points, where the data points correspond to measurements of a color standard using devices from a control device batch and a test device batch. Using the conversion module, a processor is configured to transform the set of color measurements into a calibrated color measurement set. The calibrated color measurement set is then output to at least one display, memory or remote computing device.
    Type: Application
    Filed: November 4, 2019
    Publication date: April 2, 2020
    Inventors: Taeyoung Park, Hong Wei, Zhiling Xu, Venkata R. Thumu
  • Publication number: 20200080893
    Abstract: In one example, an initial transform is stored for converting wavelength channel responses of a color measurement instrument to color readings. The initial transform is set in-factory by a manufacturer of the color measurement device. A color selection of a sample is subsequently retrieved from a database, where the color selection was made by an end user in response to a color reading by the color measurement instrument using the initial transform. An adjustment to the initial transform is calculated using the color selection. The adjustment is then sent to the color measurement instrument for use in making future color measurements.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 12, 2020
    Inventors: Zhiling Xu, Taeyoung Park
  • Patent number: 10564036
    Abstract: Systems, methods and computer program products for segmenting colors in a sample image comprised of pixels using a processor configured by code executing for selecting at least one color value present within the sample image and for each color selected from the sample image comparing the color values of each pixel of the sample image to the selected color value and averaging the color values of each pixels of the sample image having a color value difference below a pre-determined threshold. The method also includes outputting the average color value as a color value data object; and associating each averaged color value with sample image.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: February 18, 2020
    Assignee: DATACOLOR INC.
    Inventors: Taeyoung Park, Hong Wei, Venkata R. Thumu, Kathleen A. Edwards
  • Patent number: 10502628
    Abstract: Embodiments of the present invention are directed towards systems, methods and computer program products for correcting inter-instrumentation variation among color measurement devices. In one particular implementation, a method for correcting inter-instrument variation among color measurement devices includes obtaining a set of color measurements of an item under analysis. The described approach also includes accessing a conversion model, wherein the conversion module has been generated using one or more ANN back propagated over a collection of data points, where the data points correspond to measurements of a color standard using devices from a control device batch and a test device batch. Using the conversion module, a processor is configured to transform the set of color measurements into a calibrated color measurement set. The calibrated color measurement set is then output to at least one display, memory or remote computing device.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 10, 2019
    Assignee: Datacolor Inc.
    Inventors: Taeyoung Park, Hong Wei, Zhiling Xu, Venkata R. Thumu
  • Patent number: 10483893
    Abstract: The present disclosure relates to a motor driving apparatus and a home appliance including the same. The motor driving apparatus in accordance with an embodiment of the present disclosure, comprises a DC-stage capacitor, a three-phase upper arm and lower arm switching element, an inverter to convert DC power from the DC-stage capacitor to an AC power by a switching operation and output the converted AC power to a motor, and a controller to control the inverter, wherein the controller controls the switching elements in the inverter based on a space vector-based pulse width variable, and controls a turn-on time of the switching elements to be shifted, wherein continuous first and second switching periods of the switching elements is changed to one switching period by shifting the a turn-on time of the switching elements. Accordingly, when the inverter is switched, noise can be reduced while reducing switching loss.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 19, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jungsong Moon, Taeyoung Park, Sangyoung Kim
  • Patent number: 10444074
    Abstract: A method and a system are provided to measure transmittance or reflectance of a color specimen by using a transformation matrix obtained from the measurement values of a series of known transmittance or reflectance calibration color standards and multiple flashes from different illumination sources. A color spectrum can be determined with reduced error by calculating the reflectance spectra of an object using measurement matrices obtained under at least two illuminants and the transformation matrix.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 15, 2019
    Assignee: DATACOLOR INC.
    Inventors: Zhiling Xu, Hong Wei, Taeyoung Park
  • Publication number: 20190301940
    Abstract: A method and a system are provided to measure transmittance or reflectance of a color specimen by using a transformation matrix obtained from the measurement values of a series of known transmittance or reflectance calibration color standards and multiple flashes from different illumination sources. A color spectrum can be determined with reduced error by calculating the reflectance spectra of an object using measurement matrices obtained under at least two illuminants and the transformation matrix.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 3, 2019
    Inventors: Zhiling Xu, Hong Wei, Taeyoung Park
  • Patent number: 10389252
    Abstract: Provided are a power converting system and a power converting apparatus, which include an input unit that receives a direct current (DC) voltage from an external power source, a conversion unit including a plurality of switching circuits that convert the input DC voltage into a multi-phase AC voltage, a resonant unit including a single resonant inductor connected to each of the plurality of switching circuits, and an output unit that rectifies each phase of the multi-phase AC voltage which has been converted in the plurality of switching circuits and outputs a single DC voltage.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: August 20, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sanghyeon Kim, Taeyoung Park, Jeongeon Oh
  • Patent number: 10311798
    Abstract: An organic light emitting diode display includes pixels in which an amount of current flowing in an organic light emitting diode of each pixel is determined depending on a difference between a data voltage and a reference voltage, a control signal generator differently generating a screen brightness control signal depending on a driving mode, a register adjusting unit independently adjusting a reference voltage register value and a gamma register value at each of red (R), green (G), and blue (B) pixels depending on the screen brightness control signal, a reference voltage generator generating the reference voltage of each of the R, G, and B colors based on the reference voltage register value, and a data voltage generator generating the data voltage of each of the R, G, and B colors based on the gamma register value.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 4, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyunjae Lee, Taeyoung Park, Dongsup Shim
  • Publication number: 20190019313
    Abstract: A method is provided for identifying colors across illuminants using a processor configured by code executing therein, the method comprising capturing a sample image with an image recording device, the image including pixels representing a color sample under analysis and a color reference chart. The processor is also configured to execute comparing the color values of pixels representing the color reference chart of the sample image to the pixel values corresponding to a plurality of entries within a plurality of color reference datasets to determine the dataset representing the closest match of the illumination present at the time the sample image was captured. Using the identified illuminant, the color reference dataset having the closest illuminant is searched for the color under analysis.
    Type: Application
    Filed: June 28, 2018
    Publication date: January 17, 2019
    Inventors: Zhiling Xu, Taeyoung Park
  • Publication number: 20180245979
    Abstract: Systems, methods and computer program products for segmenting colors in a sample image comprised of pixels using a processor configured by code executing for selecting at least one color value present within the sample image and for each color selected from the sample image comparing the color values of each pixel of the sample image to the selected color value and averaging the color values of each pixels of the sample image having a color value difference below a pre-determined threshold. The method also includes outputting the average color value as a color value data object; and associating each averaged color value with sample image.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 30, 2018
    Inventors: Taeyoung Park, Hong Wei, Venkata R. Thumu, Kathleen A. Edwards
  • Publication number: 20180152108
    Abstract: Provided are a power converting system and a power converting apparatus, which include an input unit that receives a direct current (DC) voltage from an external power source, a conversion unit including a plurality of switching circuits that convert the input DC voltage into a multi-phase AC voltage, a resonant unit including a single resonant inductor connected to each of the plurality of switching circuits, and an output unit that rectifies each phase of the multi-phase AC voltage which has been converted in the plurality of switching circuits and outputs a single DC voltage.
    Type: Application
    Filed: November 24, 2017
    Publication date: May 31, 2018
    Inventors: Sanghyeon KIM, Taeyoung Park, Jeongeon Oh
  • Publication number: 20180062551
    Abstract: The present disclosure relates to a motor driving apparatus and a home appliance including the same. The motor driving apparatus in accordance with an embodiment of the present disclosure, comprises a DC-stage capacitor, a three-phase upper arm and lower arm switching element, an inverter to convert DC power from the DC-stage capacitor to an AC power by a switching operation and output the converted AC power to a motor, and a controller to control the inverter, wherein the controller controls the switching elements in the inverter based on a space vector-based pulse width variable, and controls a turn-on time of the switching elements to be shifted, wherein continuous first and second switching periods of the switching elements is changed to one switching period by shifting the a turn-on time of the switching elements. Accordingly, when the inverter is switched, noise can be reduced while reducing switching loss.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: Jungsong MOON, Taeyoung PARK, Sangyoung KIM