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).
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Publication number: 20240096879Abstract: 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: ApplicationFiled: April 11, 2023Publication date: March 21, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Kyu Man HWANG, Sung Il PARK, Jin Chan YUN, Dong Kyu LEE
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Patent number: 10297228Abstract: 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: GrantFiled: April 20, 2017Date of Patent: May 21, 2019Assignee: 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
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Patent number: 9980682Abstract: 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: GrantFiled: September 30, 2014Date of Patent: May 29, 2018Assignees: GIL MEDICAL CENTER, GACHON UNIVERSITY OF INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: So Hyun Ahn, Kyu Chan Lee
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Publication number: 20180018938Abstract: 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: ApplicationFiled: April 20, 2017Publication date: January 18, 2018Applicant: 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
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Publication number: 20170105684Abstract: 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: ApplicationFiled: September 30, 2014Publication date: April 20, 2017Inventors: So Hyun AHN, Kyu Chan LEE
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Patent number: 9117386Abstract: 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: GrantFiled: April 6, 2012Date of Patent: August 25, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-jin Lim, Gang-mo Koo, Sung-soo Kim, Kyu-chan Lee, Ho-seop Lee
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Patent number: 9036406Abstract: 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: GrantFiled: March 15, 2013Date of Patent: May 19, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-Jin Kim, Sang-Kyu Kang, Dong-Hyun Sohn, Dong-Min Kim, Kyu-Chan Lee
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Publication number: 20150121109Abstract: 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: ApplicationFiled: September 25, 2014Publication date: April 30, 2015Inventors: Young-Hun SEO, Seung-Hoon OH, Kyu-Chan LEE
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Publication number: 20130329489Abstract: 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: ApplicationFiled: March 15, 2013Publication date: December 12, 2013Inventors: HYE-JIN KIM, Sang-Kyu Kang, Dong-Hyun Sohn, Dong-Min Kim, Kyu-Chan Lee
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Patent number: 8456397Abstract: 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: GrantFiled: June 2, 2009Date of Patent: June 4, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-soo Kim, Kyu-chan Lee, Hyeong-sik Choi
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Publication number: 20130094754Abstract: 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: ApplicationFiled: September 14, 2012Publication date: April 18, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyu-chan LEE, Sung-soo KIM, Young-hun JO, Hwa-seok SEONG
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Publication number: 20130076714Abstract: 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: ApplicationFiled: April 6, 2012Publication date: March 28, 2013Applicant: Samsung Electronics Co., Ltd.Inventors: Sung-jin LIM, Gang-mo KOO, Sung-soo KIM, Kyu-chan LEE, Ho-seop LEE
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Patent number: 8322922Abstract: 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: GrantFiled: October 23, 2009Date of Patent: December 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Yun-Young Lee, Kyu-Chan Lee, Ho-Cheol Lee
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Patent number: 8310853Abstract: 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: GrantFiled: January 10, 2011Date of Patent: November 13, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Sun Min, Kyu-Chan Lee, Chul-Woo Yi, Jong-Hyun Choi
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Publication number: 20110103166Abstract: 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: ApplicationFiled: January 10, 2011Publication date: May 5, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: YOUNG-SUN MIN, Kyu-Chan Lee, Chul-Woo Yi, Jong-Hyun Choi
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Patent number: 7869239Abstract: 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: GrantFiled: April 3, 2008Date of Patent: January 11, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Sun Min, Kyu-Chan Lee, Chul-Woo Yi, Jong-Hyun Choi
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Patent number: 7782688Abstract: 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: GrantFiled: December 21, 2007Date of Patent: August 24, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Jun Kim, Woo-Seop Jeong, Kyu-Chan Lee
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Patent number: 7768853Abstract: 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: GrantFiled: March 31, 2008Date of Patent: August 3, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hyo-Joo Ahn, Kyu-Chan Lee, Chul-Woo Yi
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Publication number: 20100109753Abstract: 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: ApplicationFiled: October 23, 2009Publication date: May 6, 2010Inventors: YUN-YOUNG LEE, Kyu-Chan Lee, Ho-Cheol Lee
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Publication number: 20100085387Abstract: 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: ApplicationFiled: June 2, 2009Publication date: April 8, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Sung-soo Kim, Kyu-chan Lee, Hyeong-sik Choi