Patents by Inventor Kyu-chan Lee

Kyu-chan Lee 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: 20240096879
    Abstract: A semiconductor device is provided. The semiconductor device includes an active pattern extending in a first horizontal direction, a plurality of lower nanosheets stacked on the active pattern and spaced apart from one another in a vertical direction, a separation layer on the plurality of lower nanosheets, a plurality of upper nanosheets stacked on the separation layer and spaced apart from one another in the vertical direction, a gate electrode extending on the active pattern in a second horizontal direction, the gate electrode surrounding each of the plurality of lower nanosheets, the separation layer and the plurality of upper nano sheets, and a first conductive layer between the gate electrode and each of a top surface and a bottom surface of the plurality of upper nanosheets. The first conductive layer is not between the gate electrode and sidewalls of the plurality of upper nanosheets.
    Type: Application
    Filed: April 11, 2023
    Publication date: March 21, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyu Man HWANG, Sung Il PARK, Jin Chan YUN, Dong Kyu LEE
  • Patent number: 10297228
    Abstract: A display apparatus includes: a display panel including a plurality of pixels; a storage configured to store a plurality of lookup tables respectively corresponding to a plurality of gamma values; and a processor configured to determine a lookup table, from among the plurality of lookup tables, to be applied to each of the plurality of pixels based on a location of each of the plurality of pixels on the display panel, and determine a brightness value of each of the plurality of pixels using the determined lookup table.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: May 21, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-hoon Lee, Sang-hyoun Kim, Sung-jin Lim, Kyu-chan Lee, Jae-moon Lee, Hyoung-pyo Lee, Byung-kwan Kim
  • Patent number: 9980682
    Abstract: A curved movable beam-stop array which has a generator, a curved grid and a controller. The generator generates radiation beams while rotating to a gantry angle. The curved grid is positioned in the radiation direction of the radiation beams generated from the generator. The controller controls operations of the grid. A plurality of slits of the grid are spaced apart from each other at a predetermined distance and allow at least a portion of the radiation beams generated from the generator to pass through. The controller moves the slit by a predetermined distance when the generator moves by a predefined angle.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 29, 2018
    Assignees: GIL MEDICAL CENTER, GACHON UNIVERSITY OF INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: So Hyun Ahn, Kyu Chan Lee
  • Publication number: 20180018938
    Abstract: A display apparatus and a control method thereof are provided. The display apparatus includes: a display panel including a plurality of pixels; a storage configured to store a plurality of lookup tables respectively corresponding to a plurality of gamma values; and a processor configured to determine a lookup table, from among the plurality of lookup tables, to be applied to each of the plurality of pixels based on a location of each of the plurality of pixels on the display panel, and determine a brightness value of each of the plurality of pixels using the determined lookup table.
    Type: Application
    Filed: April 20, 2017
    Publication date: January 18, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-hoon LEE, Sang-hyoun KIM, Sung-jin LIM, Kyu-chan LEE, Jae-moon LEE, Hyoung-pyo LEE, Byung-kwan KIM
  • Publication number: 20170105684
    Abstract: Disclosed is a curved movable beam-stop array (BSA) which can be applied to accurately and efficiently improve the quality of images of a cone-beam CT (CBCT) system, and particularly, can be applied to not only a simulation CBCT system necessary for radiotherapy and a CBCT system mounted in a radiotherapy apparatus but also to a wide range of fields including plastic surgery, maxillofacial surgery, dental surgery, and the like. The BSA comprises a generator, a curved grid and a controller. The generator generates radiation beams while rotating to a gantry angle. The curved grid is positioned in the radiation direction of the radiation beams generated from the generator. The controller controls operations of the grid. In the BSA, the grid comprises a plurality of slits spaced apart from each other at a predetermined distance, the plurality of slits allowing at least a portion of the radiation beams generated from the generator to pass through.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 20, 2017
    Inventors: So Hyun AHN, Kyu Chan LEE
  • Patent number: 9117386
    Abstract: A method for driving a display panel and a display apparatus applying the same are provided. The method includes driving all lines of the display panel in a first scanning section of a section to display one frame, and driving one of an even line and an odd line of the display panel in a second scanning section of the section to display the one frame. Accordingly, a crosstalk phenomenon in the display apparatus is removed and image quality of a 3D stereoscopic image is improved.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-jin Lim, Gang-mo Koo, Sung-soo Kim, Kyu-chan Lee, Ho-seop Lee
  • Patent number: 9036406
    Abstract: A MRAM includes a memory cell array of spin-transfer torque magnetic random access memory (STT-MRAM) cells and a source line commonly connected to the plurality of STT-MRAM cells. A source line voltage generator generates a source line driving voltage in response to an external power supply voltage and provides the source line driving voltage to the source line.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 19, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye-Jin Kim, Sang-Kyu Kang, Dong-Hyun Sohn, Dong-Min Kim, Kyu-Chan Lee
  • Publication number: 20150121109
    Abstract: one example embodiment, a voltage regulator includes a regulating unit configured to generate a cell array operating voltage based on a power supply voltage and a reference voltage, a power switch control unit configured to generate a power switch control signal based on a sensing enable signal, and a power switch unit configured to compensate for a drop in the cell array operating voltage based on the power supply voltage and the power switch control signal, the cell array operating voltage dropping when the sensing enable signal is activated.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 30, 2015
    Inventors: Young-Hun SEO, Seung-Hoon OH, Kyu-Chan LEE
  • Publication number: 20130329489
    Abstract: A MRAM includes a memory cell array of spin-transfer torque magnetic random access memory (STT-MRAM) cells and a source line commonly connected to the plurality of STT-MRAM cells. A source line voltage generator generates a source line driving voltage in response to an external power supply voltage and provides the source line driving voltage to the source line.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 12, 2013
    Inventors: HYE-JIN KIM, Sang-Kyu Kang, Dong-Hyun Sohn, Dong-Min Kim, Kyu-Chan Lee
  • Patent number: 8456397
    Abstract: A display apparatus for calibrating a grayscale data including a timing controller, and a method for driving a panel are provided. A display apparatus includes a timing controller which calibrates the grayscale data of the current frame using the grayscale data of the previous and the current frame and a driving unit which drives a panel using the calibrated grayscale data of the current frame. By generating calibrated grayscale data which are variable according to the change of grayscale, response times of liquid crystal may be improved.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: June 4, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-soo Kim, Kyu-chan Lee, Hyeong-sik Choi
  • Publication number: 20130094754
    Abstract: An image output apparatus and a method for outputting an image thereof are provided. The method of the image output apparatus determines whether a difference in grayscale values between a current image frame and a previous image frame is greater than or equal to a pre-set value, if the difference in the grayscale values is greater than or equal to the pre-set value, at least one of a maximum grayscale value and a minimum grayscale value of the current image frame is adjusted, a grayscale of the current image frame according to an input and output grayscale function having the adjusted maximum grayscale value and minimum grayscale value is adjusted and an image is output. Accordingly, a crosstalk phenomenon of a 3D stereoscopic image is removed.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 18, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-chan LEE, Sung-soo KIM, Young-hun JO, Hwa-seok SEONG
  • Publication number: 20130076714
    Abstract: A method for driving a display panel and a display apparatus applying the same are provided. The method includes driving all lines of the display panel in a first scanning section of a section to display one frame, and driving one of an even line and an odd line of the display panel in a second scanning section of the section to display the one frame. Accordingly, a crosstalk phenomenon in the display apparatus is removed and image quality of a 3D stereoscopic image is improved.
    Type: Application
    Filed: April 6, 2012
    Publication date: March 28, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-jin LIM, Gang-mo KOO, Sung-soo KIM, Kyu-chan LEE, Ho-seop LEE
  • Patent number: 8322922
    Abstract: A method of outputting temperature data in a semiconductor device and a temperature data output circuit are provided. A pulse signal is generated in response to a booting enable signal activated in response to a power-up signal and the generation is inactivated in response to a mode setting signal during a power-up operation. A comparison signal is generated in response to the pulse signal by comparing a reference voltage independent of temperature with a sense voltage that varies with temperature change. The temperature data is changed in response to the comparison signal. Thus, the temperature data output circuit can rapidly output the exact temperature of the semiconductor device measured during the power-up operation.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: December 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-Young Lee, Kyu-Chan Lee, Ho-Cheol Lee
  • Patent number: 8310853
    Abstract: A layout structure of bit line sense amplifiers for use in a semiconductor memory device includes first and second bit line sense amplifiers arranged to share and be electrically controlled by a first column selection line signal, and each including a plurality of transistors. In this layout structure, each of the plurality of transistors forming the first bit line sense amplifier is arranged so as not to share an active region with any transistors forming the second bit line sense amplifier.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: November 13, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Sun Min, Kyu-Chan Lee, Chul-Woo Yi, Jong-Hyun Choi
  • Publication number: 20110103166
    Abstract: A layout structure of bit line sense amplifiers for use in a semiconductor memory device includes first and second bit line sense amplifiers arranged to share and be electrically controlled by a first column selection line signal, and each including a plurality of transistors. In this layout structure, each of the plurality of transistors forming the first bit line sense amplifier is arranged so as not to share an active region with any transistors forming the second bit line sense amplifier.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 5, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: YOUNG-SUN MIN, Kyu-Chan Lee, Chul-Woo Yi, Jong-Hyun Choi
  • Patent number: 7869239
    Abstract: A layout structure of bit line sense amplifiers for use in a semiconductor memory device includes first and second bit line sense amplifiers arranged to share and be electrically controlled by a first column selection line signal, and each including a plurality of transistors. In this layout structure, each of the plurality of transistors forming the first bit line sense amplifier is arranged so as not to share an active region with any transistors forming the second bit line sense amplifier.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Sun Min, Kyu-Chan Lee, Chul-Woo Yi, Jong-Hyun Choi
  • Patent number: 7782688
    Abstract: Provided are a semiconductor memory device and a test method thereof. The semiconductor memory device includes: a die in which a plurality of internal circuits are integrated; a plurality of first and second channel pads having a first pad size and a first pad pitch, disposed in an alternating manner in a straight line at a center part of the die, and divided into a plurality of parallel rows, wherein the plurality of first and second channel pads are configured to selectively contact test probes in an alternating manner to receive an external wafer test signal and to output a signal generated by the plurality of internal circuits to the exterior. Therefore, it is possible to perform a test using plural channel pads during a wafer test of the semiconductor memory device using a plurality of probes of a probe card without incorrect contacts or non-contact with adjacent pads.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: August 24, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Jun Kim, Woo-Seop Jeong, Kyu-Chan Lee
  • Patent number: 7768853
    Abstract: A semiconductor memory device includes: a substrate with first and second memory-cell array regions disposed on first and second substrate sides and first and second sense-circuit regions disposed on the first and second substrate sides between the first and second memory-cell array regions; first and second bitlines coupled to a plurality of memory cells in the first memory-cell array region; first and second complementary bitlines coupled to a plurality of memory cells in the second memory-cell array region; first and second column-selection transistors formed in the first sense-circuit region, and selectively couple the first bitline and the first complementary bitline to a first input/output (I/O) line and a first complementary I/O line; and third and fourth column-selection transistors formed in the second sense-circuit region, and selectively couple the second bitline and the second complementary bitline to a second I/O line and a second complementary I/O line.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: August 3, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Joo Ahn, Kyu-Chan Lee, Chul-Woo Yi
  • Publication number: 20100109753
    Abstract: A method of outputting temperature data in a semiconductor device and a temperature data output circuit are provided. A pulse signal is generated in response to a booting enable signal activated in response to a power-up signal and the generation is inactivated in response to a mode setting signal during a power-up operation. A comparison signal is generated in response to the pulse signal by comparing a reference voltage independent of temperature with a sense voltage that varies with temperature change. The temperature data is changed in response to the comparison signal. Thus, the temperature data output circuit can rapidly output the exact temperature of the semiconductor device measured during the power-up operation.
    Type: Application
    Filed: October 23, 2009
    Publication date: May 6, 2010
    Inventors: YUN-YOUNG LEE, Kyu-Chan Lee, Ho-Cheol Lee
  • Publication number: 20100085387
    Abstract: A display apparatus for calibrating a grayscale data including a timing controller, and a method for driving a panel are provided. A display apparatus includes a timing controller which calibrates the grayscale data of the current frame using the grayscale data of the previous and the current frame and a driving unit which drives a panel using the calibrated grayscale data of the current frame. By generating calibrated grayscale data which are variable according to the change of grayscale, response times of liquid crystal may be improved.
    Type: Application
    Filed: June 2, 2009
    Publication date: April 8, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-soo Kim, Kyu-chan Lee, Hyeong-sik Choi