Patents by Inventor Dong-bum Choi

Dong-bum Choi 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).

  • Publication number: 20240081124
    Abstract: A display device includes a via insulating layer on a substrate; a first electrode on the via insulating layer; a pixel defining layer including an inclined region on the first electrode and including a first opening exposing a portion of the first electrode, and a flat region at a side of the inclined region and in contact with the via insulating layer; a light emitting layer on the portion of the first electrode exposed by the first opening; organic particles on the flat region of the pixel defining layer; an encapsulation layer covering the pixel defining layer, the light emitting layer, and the organic particles, and including a first layer, a second layer, and a third layer; and a first light blocking layer on the third layer of the encapsulation layer to overlap the flat region of the pixel defining layer and form a second opening.
    Type: Application
    Filed: May 8, 2023
    Publication date: March 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Ho KIM, Dong Uk KIM, Hyoeng Ki KIM, Hyeon Bum LEE, Hoon Gi LEE, Chaun Gi CHOI
  • Publication number: 20240076468
    Abstract: An embodiment resin composition for shielding electromagnetic waves, based on a total weight of the resin composition, includes 20 to 80 wt % of thermoplastic resin, 1 to 50 wt % of a conductive filler, and 0.1 to 30 wt % of an additive.
    Type: Application
    Filed: January 16, 2023
    Publication date: March 7, 2024
    Inventors: Seung-Woo Choi, Dong-Bum Seo, Kyun Oh, Yu-Hyun Song, Yang-Jin Kwon, Joo-Han Lee
  • Patent number: 11805332
    Abstract: An image signal processor that generates a display signal receives an input image signal having a first pedestal level from an image sensor, generates a first signal from the input image signal, the first signal including a second pedestal level, the second pedestal level being different from the first pedestal level and being determined in accordance with the first pedestal level and a processing gain of the image signal processor, generates a second signal having the second pedestal level by amplifying the first signal in accordance with the processing gain, generates a third signal having the second pedestal level by removing a noise signal from the second signal; and generates a fourth signal by subtracting the second pedestal level from the third signal.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: October 31, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Bum Choi, Hyunyup Kwak, Jaeho Lee, Ildo Kim, Seongwook Song
  • Publication number: 20230231979
    Abstract: An image processing device includes; an image sensor including pixels arranged in a non-Bayer pattern and configured to generate non-Bayer pattern image data in response to electrical signals generated by the pixels, and an image signal processor configured to determine an indexing value indicating a color of a target pixel among the pixels and directly process the non-Bayer pattern image data in response to the indexing value.
    Type: Application
    Filed: November 9, 2022
    Publication date: July 20, 2023
    Inventors: ILDO KIM, PILSU KIM, DONGWOO LEE, NA-RI IM, DONG-BUM CHOI, JONGSEONG CHOI, SUKHWAN LIM
  • Publication number: 20230108491
    Abstract: An image signal processor includes a statistic data generating unit for receiving an image signal from an external device, an image processing unit for receiving the image signal, and a direct memory access (DMA) module connected to the statistic data generating unit and the image processing unit. The statistic data generating unit performs first image pre-processing on the image signal and generates first statistic data based on the image signal subjected to the first image pre-processing. The DMA module stores the first statistic data therein and provides the stored first statistic data to the image processing unit. The image processing unit performs second image pre-processing on the image signal and performs image processing on the image signal based on the first statistic data.
    Type: Application
    Filed: March 7, 2022
    Publication date: April 6, 2023
    Inventors: DONG-BUM CHOI, IL DO KIM, DONG WOO LEE, NA-RI IM, KYU YUL CHOI, JONG SEONG CHOI, SUK HWAN LIM
  • Patent number: 11341595
    Abstract: Various embodiments of the present invention relate to an electronic device capable of generating a virtual image by using a user input, and an operating method therefor.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: May 24, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Bum Choi, Sangjin Lee, Seung Hye Chyung, Jonghoon Won, Haedong Lee
  • Publication number: 20210344855
    Abstract: An image signal processor that generates a display signal receives an input image signal having a first pedestal level from an image sensor, generates a first signal from the input image signal, the first signal including a second pedestal level, the second pedestal level being different from the first pedestal level and being determined in accordance with the first pedestal level and a processing gain of the image signal processor, generates a second signal having the second pedestal level by amplifying the first signal in accordance with the processing gain, generates a third signal having the second pedestal level by removing a noise signal from the second signal; and generates a fourth signal by subtracting the second pedestal level from the third signal.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: Dong-bum CHOI, Hyunyup KWAK, Jaeho LEE, Ildo KIM, Seongwook SONG
  • Patent number: 11082647
    Abstract: An image signal processor that generates a display signal receives an input image signal having a first pedestal level from an image sensor, generates a first signal from the input image signal, the first signal including a second pedestal level, the second pedestal level being different from the first pedestal level and being determined in accordance with the first pedestal level and a processing gain of the image signal processor, generates a second signal having the second pedestal level by amplifying the first signal in accordance with the processing gain, generates a third signal having the second pedestal level by removing a noise signal from the second signal; and generates a fourth signal by subtracting the second pedestal level from the third signal.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 3, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-bum Choi, Hyunyup Kwak, Jaeho Lee, Ildo Kim, Seongwook Song
  • Publication number: 20200273137
    Abstract: Various embodiments of the present invention relate to an electronic device capable of generating a virtual image by using a user input, and an operating method therefor.
    Type: Application
    Filed: September 4, 2018
    Publication date: August 27, 2020
    Inventors: Dong-Bum CHOI, Sangjin LEE, Seung Hye CHYUNG, Jonghoon WON, Haedong LEE
  • Publication number: 20200045252
    Abstract: An image signal processor that generates a display signal receives an input image signal having a first pedestal level from an image sensor, generates a first signal from the input image signal, the first signal including a second pedestal level, the second pedestal level being different from the first pedestal level and being determined in accordance with the first pedestal level and a processing gain of the image signal processor, generates a second signal having the second pedestal level by amplifying the first signal in accordance with the processing gain, generates a third signal having the second pedestal level by removing a noise signal from the second signal; and generates a fourth signal by subtracting the second pedestal level from the third signal.
    Type: Application
    Filed: March 22, 2019
    Publication date: February 6, 2020
    Inventors: Dong-bum CHOI, Hyunyup KWAK, Jaeho LEE, Ildo KIM, Seongwook SONG
  • Patent number: 9191566
    Abstract: An image pickup apparatus, an image pickup method and a non-transitory computer readable recording medium are provided. The image pickup apparatus includes an image sensor including a first pixel group and a second pixel group, a controller which controls the image sensor to capture an image of an object by using the first pixel group and to capture a live view of the object by using the second pixel group, a storage which stores the image captured by the first pixel group, and an auto focusing (AF) processor which generates AF information by using the live view captured by the second pixel group.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-bum Choi, Yong-ju Lee
  • Publication number: 20130258149
    Abstract: An image pickup apparatus, an image pickup method and a non-transitory computer readable recording medium are provided. The image pickup apparatus includes an image sensor including a first pixel group and a second pixel group, a controller which controls the image sensor to capture an image of an object by using the first pixel group and to capture a live view of the object by using the second pixel group, a storage which stores the image captured by the first pixel group, and an auto focusing (AF) processor which generates AF information by using the live view captured by the second pixel group.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 3, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-bum CHOI, Yong-ju LEE
  • Patent number: 8400479
    Abstract: A color signal processing apparatus calculates a target color gamut including color signal values of each pixel of an input video, and calculates target primary colors corresponding to the calculated target color gamut. The color signal processing apparatus produces the calculated target primary colors by mixing primary colors in an input color gamut of the input video, and converts and outputs the color signal values of each pixel of the input video to match the calculated target color gamut defined by the calculated target primary colors. Since it is possible to adaptively transform the input color gamut of the input video, the input video that is reproduced has an increased light quantity and an enhanced contrast.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Il-do Kim, Moon-cheol Kim, Dong-bum Choi
  • Patent number: 8379038
    Abstract: A color-processing method includes: selecting a target color gamut to produce an input color signal; calculating a mixture ratio enabling primary colors of the target color gamut to be created by mixing primary colors of a color gamut of the color reproduction apparatus to reproduce the input color signal therewith; producing primary colors reconfigured by mixing the primary colors of the color gamut of the color reproduction apparatus according to the calculated mixture ratio; adjusting an illuminant to match an output signal to a color gamut determined by the reconfigured primary colors; and converting the input color signal to match to the primary colors determined by the reconfigured primary colors. Further a user can arbitrarily set a color gamut in a range that a color reproduction apparatus can reproduce regardless of an input color signal without a quantization errors.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: February 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-cheol Shin, Dong-bum Choi
  • Publication number: 20120299946
    Abstract: A color signal processing apparatus calculates a target color gamut including color signal values of each pixel of an input video, and calculates target primary colors corresponding to the calculated target color gamut. The color signal processing apparatus produces the calculated target primary colors by mixing primary colors in an input color gamut of the input video, and converts and outputs the color signal values of each pixel of the input video to match the calculated target color gamut defined by the calculated target primary colors.
    Type: Application
    Filed: August 9, 2012
    Publication date: November 29, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Il-do KIM, Moon-cheol KIM, Dong-bum CHOI
  • Patent number: 8165421
    Abstract: Provided are a method and apparatus for correcting an image under conditions where degradation of an image occurs. The method includes receiving an input image; comparing the input image with a stored image related to the input image, according to a predetermined standard; and selectively correcting the input image based on the stored image according to the result of the comparison.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: April 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-bum Choi, Soo-young Kim
  • Patent number: 8035690
    Abstract: A motion estimation apparatus and method for estimating a global motion vector of an image due to hand trembling by using zoom information and focus information are provided. The motion estimation method includes: dividing a photographed image into a plurality of image blocks; determining a weight value for a motion vector of each of a plurality of image blocks based on focus information and zoom magnification information; predicting a motion vector for each image block; and estimating a global motion by applying the weight value determined for the motion vector for each image block to the predicted motion vector.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-woo Lee, Yoon-cheol Shin, Dong-bum Choi, Tae-wook Nam
  • Patent number: 7516894
    Abstract: Provided is a laser display apparatus for displaying an image by scanning laser light onto a screen. The laser display apparatus includes: a laser and an optical scanning unit scanning laser light emitted by the laser, whereby an image is provided to the screen; a laser light intensity adjusting unit limiting the intensity of laser light being scanned onto the screen; and a projection lens unit that is disposed between the laser and the screen and enlarges and projects laser light onto the screen.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: April 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-young Kim, Dong-bum Choi, Sung-ha Kim
  • Publication number: 20090051777
    Abstract: A motion estimation apparatus and method for estimating a global motion vector of an image due to hand trembling by using zoom information and focus information are provided. The motion estimation method includes: dividing a photographed image into a plurality of image blocks; determining a weight value for a motion vector of each of a plurality of image blocks based on focus information and zoom magnification information; predicting a motion vector for each image block; and estimating a global motion by applying the weight value determined for the motion vector for each image block to the predicted motion vector.
    Type: Application
    Filed: March 11, 2008
    Publication date: February 26, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-woo LEE, Yoon-cheol SHIN, Dong-bum CHOI, Tae-wook NAM
  • Publication number: 20080291298
    Abstract: Provided is an image noise reduction method and apparatus in consideration of brightness of an image in a camera using an image pickup device such as a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS). The method includes: detecting a degree of image motion by using data from a plurality of frames which are picked up; detecting brightness of an image which is picked up; determining a ratio between current frame data and previous frame data according to the image motion degree and the brightness of the image; and combining the current frame data with the previous frame data according to the determined frame data ratio.
    Type: Application
    Filed: October 5, 2007
    Publication date: November 27, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Soo-young KIM, Dong-bum CHOI