Patents by Inventor Seong-Cheol Lee
Seong-Cheol 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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Patent number: 11979488Abstract: A method for generating a key stream according to an embodiment includes generating r round keys that are each N-dimensional integer vectors including elements of an integer set defined based on a prime number t, based on a random bit string, an encryption counter, and a secret key that is an N-dimensional integer vector consisting of elements of the integer set , generating a first round output vector x1 by performing a modular addition operation on an initial vector and a first round key RK1 of the r round keys with the prime number t as a modulus, and generating a key stream that is an N-dimensional integer vector consisting of elements of the integer set from the first round output vector x1 by using a second to r-th round keys of the r round keys, and one or more first round functions and a second round function.Type: GrantFiled: October 29, 2021Date of Patent: May 7, 2024Assignees: Samsung SDS Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Joo Hee Lee, Duk Jae Moon, Hyo Jin Yoon, Ji Hoon Cho, Seong Kwang Kim, Joo Young Lee, Jin Cheol Ha
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Publication number: 20240119874Abstract: Disclosed are a source driver and a method of detecting crack of a display panel. A source driver may comprise a first circuit configured to apply first data to data lines connected to sub-pixels of a display panel to charge a first driving voltage; and a second circuit formed on the display panel that applies the first driving voltage to a detection line formed on the display panel to detect the presence of cracks in the display panel based on the illumination status of the sub-pixels, wherein the detection line includes a first detection node and a second detection node formed on one side of the display panel along its extension direction, wherein the first detection node is connected to data lines of the first and third sub-pixels, and wherein the second detection node is connected to data line of the second sub-pixel.Type: ApplicationFiled: October 4, 2023Publication date: April 11, 2024Applicant: LX SEMICON CO., LTD.Inventors: Byeon Cheol LEE, Seong Geon KIM, Won KIM, Tai Ming PIAO, Young Ho SHIN
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Patent number: 11953066Abstract: The present disclosure relates to a brake disc including a braking part having a circular plate shape having a hollow portion and a plurality of coupling portions protruding and extending from an inner diameter surface thereof, and a hat part disposed in the hollow portion and having a plurality of insertion portions protruding laterally, in which the plurality of coupling portions is respectively coupled to the plurality of insertion portions, and the coupling portion of the braking part and the insertion portion of the hat part are joined to only one of an outboard portion or an inboard portion of the braking part. According to the present disclosure, it is possible to reduce noise occurring at a position at which the hat part and the braking part are coupled to each other and improve cooling performance.Type: GrantFiled: April 1, 2022Date of Patent: April 9, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SEOHAN INDUSTRY CO., LTD.Inventors: Yoon-Cheol Kim, Kyung-Rok Choi, Sang-Bum Koh, Seong-Kweon Joo, Ki-Jeong Kim, Jae-Seok Lee
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Publication number: 20240102611Abstract: A low profile flat bombe for Liquefied Petroleum Gas (LPG) storage and method for manufacturing the same, may include a flat bombe body including an upper plate having a plurality of first piercing holes and a pump installation hole formed therethrough, a lower plate having a plurality of second piercing holes formed therethrough at positions vertically coinciding with the plurality of first piercing holes, and side plates integrally connecting first and second side end portions of the upper and lower plates, end plates mounted at front and rear openings in the flat bombe body, and support pipes, wherein upper end portions of the support pipes are welded to internal circumferential portions of the plurality of first piercing holes and lower end portions thereof are welded to internal circumferential portions of the plurality of second piercing holes to maintain a vertical distance between the upper and lower plates.Type: ApplicationFiled: December 6, 2023Publication date: March 28, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, DAE HUNG PRECISION IND'L CO., LTD.Inventors: Seong Cheol Cho, Sung Won Lee, Ju Tae Song, Seung Hyun Yeo, Duk Hee Park
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Publication number: 20240078799Abstract: An exemplary embodiment provides an intruder detection method capable of accurately detecting an intruder and estimating an abnormal behavior of the intruder even when viewpoints of acquired images are different from each other. An intruder detection method is suitable for being performed by an intruder detection device for detecting an intruder based on images and includes: receiving input images acquired by multiple cameras; extracting feature maps associated with a plurality of viewpoints by applying the input images to a plurality of convolutional neural networks provided separately for the plurality of viewpoints of the images; and detecting the intruder based on the feature maps associated with the plurality of viewpoints.Type: ApplicationFiled: August 31, 2023Publication date: March 7, 2024Inventors: Young Il KIM, Seong Hee PARK, Geon Min YEO, Il Woo LEE, Wun Cheol JEONG, Tae Wook HEO
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Publication number: 20240068460Abstract: A variable displacement swash plate type compressor control method and a variable displacement swash plate type compressor controlled thereby may include a first determination step of determining whether liquid refrigerant exists within the variable displacement swash plate type compressor; a first operation step of applying power to the field coil assembly and of not applying current to the electronic control valve, when it is determined in the first determination step S1 that the liquid refrigerant exists; a second determination step of comparing an elapsed period of time of operating in the first operation step with a predetermined reference time; and a second operation step of maintaining the power applied in the first operation step to the field coil assembly and applying current to the electronic control valve when the elapsed period of time is greater than or equal to the reference time.Type: ApplicationFiled: July 13, 2022Publication date: February 29, 2024Inventors: Hyung In Choi, Seong Gyu Gong, Young Min Kim, Eun Gi Son, Joo Young Lee, Soo Cheol Jeong
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Publication number: 20230102896Abstract: The present disclosure provides an electronic device, including a flexible display, a frame part configured to support the flexible display and comprise a first frame and a second frame disposed so as to be slidable with respect to the first frame, a driving part configured to change a shape of the flexible display based on a relative position between the first frame and the second frame, and a controller, wherein the controller performs a designated operation in response to reception of an input signal. Other example embodiments are possible.Type: ApplicationFiled: January 9, 2020Publication date: March 30, 2023Applicant: LG ELECTRONICS INC.Inventors: Ah Rah KOH, Hak Ho CHOI, Seong Cheol LEE, Sung Do KIM
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Patent number: 10437456Abstract: A terminal can include a touch screen, and a control unit to control at least one touch-available icon to appear on the touch screen in a first direction of a first touch-drag on the touch screen, in response to a touch input to one of the at least one touch-available icon, execute a specific function such that an execution image related to the executed specific function is displayed on the touch screen. Further, the control unit of the terminal can receive a message while the specific function is being executed, receive a second touch-drag in a second direction on the touch screen, and control a message window for the received message to appear on the touch screen.Type: GrantFiled: August 19, 2016Date of Patent: October 8, 2019Assignee: LG ELECTRONICS INC.Inventors: Seong Cheol Lee, Jin Seo, Sang Hyun Park
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Patent number: 10125829Abstract: The present disclosure relates to a clutch control apparatus, and more particularly, to a clutch control apparatus that achieves miniaturization of machinery and reduces an operational error by using a non-contact type displacement detection system using a position detecting sensor for a clutch clearance, and regulates the operation of an actuator using a plurality of solenoid valves, as a result, allowing accurate position control of a pneumatic cylinder which operates the clutch, thereby improving fuel efficiency and achieving fuel reduction as well as reducing emissions of carbon dioxide.Type: GrantFiled: June 9, 2015Date of Patent: November 13, 2018Assignee: WONKWANG E&TECH CO., LTD.Inventors: Dong Geun Lee, Byeong Cheol Baek, Seong Cheol Lee, Seong Jin Kim
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Publication number: 20170175829Abstract: The present disclosure relates to a clutch control apparatus, and more particularly, to a clutch control apparatus that achieves miniaturization of machinery and reduces an operational error by using a non-contact type displacement detection system using a position detecting sensor for a clutch clearance, and regulates the operation of an actuator using a plurality of solenoid valves, as a result, allowing accurate position control of a pneumatic cylinder which operates the clutch, thereby improving fuel efficiency and achieving fuel reduction as well as reducing emissions of carbon dioxide.Type: ApplicationFiled: June 9, 2015Publication date: June 22, 2017Inventors: Dong Geun Lee, Byeong Cheol Baek, Seong Cheol Lee, Seong Jin Kim
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Publication number: 20160357397Abstract: A terminal can include a touch screen, and a control unit to control at least one touch-available icon to appear on the touch screen in a first direction of a first touch-drag on the touch screen, in response to a touch input to one of the at least one touch-available icon, execute a specific function such that an execution image related to the executed specific function is displayed on the touch screen. Further, the control unit of the terminal can receive a message while the specific function is being executed, receive a second touch-drag in a second direction on the touch screen, and control a message window for the received message to appear on the touch screen.Type: ApplicationFiled: August 19, 2016Publication date: December 8, 2016Applicant: LG Electronics Inc.Inventors: Seong Cheol LEE, Jin SEO, Sang Hyun PARK
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Patent number: 9436378Abstract: A mobile terminal including a wireless communication unit configured to wirelessly communicate with at least one other terminal, a touch screen, and a controller configured to display a first group of touch-available icons in response to a first touch-drag in a first direction on the touch screen, in response to a selection of a specific touch-available icon included in the first group of touch-available icons, execute a function corresponding to the specific touch-available icon, and display a second group of touch-available icons in response to a second touch-drag in a second direction on the touch screen, the second direction being substantially perpendicular to the first direction, wherein the second group of touch-available icons correspond to terminal setting relevant icons, and wherein the second group of touch-available icons disappear in response to a third touch-drag in a third direction opposite to the second direction.Type: GrantFiled: June 10, 2015Date of Patent: September 6, 2016Assignee: LG Electronics Inc.Inventors: Seong Cheol Lee, Jin Seo, Sang Hyun Park
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Patent number: 9163675Abstract: The present invention relates to a clutch control device, more particularly, to a clutch control device wherein a mechanical section may be miniaturized and operational errors can be reduced using a non-contact type displacement detection system which uses a linear distance sensor for a clutch clearance and the position of the mechanical section can be accurately controlled by using a plurality of solenoid valves.Type: GrantFiled: December 7, 2011Date of Patent: October 20, 2015Assignee: WONKWANG E & TECH CO., LTD.Inventors: Dong Guen Lee, Seong Cheol Lee, Seong Jin Kim, Byeong Cheol Baek
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Publication number: 20150277695Abstract: A mobile terminal including a wireless communication unit configured to wirelessly communicate with at least one other terminal, a touch screen, and a controller configured to display a first group of touch-available icons in response to a first touch-drag in a first direction on the touch screen, in response to a selection of a specific touch-available icon included in the first group of touch-available icons, execute a function corresponding to the specific touch-available icon, and display a second group of touch-available icons in response to a second touch-drag in a second direction on the touch screen, the second direction being substantially perpendicular to the first direction, wherein the second group of touch-available icons correspond to terminal setting relevant icons, and wherein the second group of touch-available icons disappear in response to a third touch-drag in a third direction opposite to the second direction.Type: ApplicationFiled: June 10, 2015Publication date: October 1, 2015Applicant: LG ELECTRONICS INC.Inventors: Seong Cheol LEE, Jin SEO, Sang Hyun PARK
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Patent number: 9112988Abstract: According to an embodiment, a terminal and a method of displaying menu icons thereof are discussed, by which a terminal user is facilitated to input various commands. An embodiment of the present invention includes a touch screen and a control unit configured to control at least one touch-available icon to move between outer and inner areas of an image displayed on the touch screen in a direction of a touch-drag on the touch screen. Accordingly, the electric current for detecting a touch is supplied to the touch screen only if the touch-available icon is displayed on the touch screen. Hence, the present invention minimizes power consumption in using the touch screen.Type: GrantFiled: December 1, 2008Date of Patent: August 18, 2015Assignee: LG ELECTRONICS INC.Inventors: Seong Cheol Lee, Jin Seo, Sang Hyun Park
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Publication number: 20140332337Abstract: The present invention relates to a clutch control device, more particularly, to a clutch control device wherein a mechanical section may be miniaturized and operational errors can be reduced using a non-contact type displacement detection system which uses a linear distance sensor for a clutch clearance and the position of the mechanical section can be accurately controlled by using a plurality of solenoid valves.Type: ApplicationFiled: December 7, 2011Publication date: November 13, 2014Applicant: WONKWANG E & TECH CO., LTD.Inventors: Dong Guen Lee, Seong Cheol Lee, Seong Jin Kim, Byeong Cheol Baek
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Patent number: 8712479Abstract: A mobile terminal including a terminal body having first and second regions on a front surface thereof, a touch screen part on the first region and configured to display visual information and perform an inputting operation in a tactile manner, and a touch pad part corresponding to the second region and configured to input information corresponding to a touch applied to a pre-set position on the second region.Type: GrantFiled: April 18, 2013Date of Patent: April 29, 2014Assignee: LG Electronics Inc.Inventors: Seong-Cheol Lee, Han-Gyu Oh, Hyo-Sung Park, Jun-Hyuck Song, Sang-Min Park, Jea-Woon Park
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Patent number: 8607165Abstract: A method for displaying icons on a portable device. The method includes displaying a first icon group including at least one icon on a touchscreen of the portable device, wherein at least one icon of the first icon group is selectable responsive to a detected presence of an input at a location proximate to a displayed location of the at least one icon, and displaying a second icon group including at least one icon on the touchscreen, wherein the at least one icon of the second icon group is selectable responsive to user contact with a mechanical input device, and wherein the selection of the at least one icon of the second icon group causes the first icon group to be displayed.Type: GrantFiled: July 18, 2008Date of Patent: December 10, 2013Assignee: LG Electronics Inc.Inventors: Seong Cheol Lee, Min Taik Lim, Jun Hyuck Song
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Publication number: 20130231162Abstract: A mobile terminal including a terminal body having first and second regions on a front surface thereof, a touch screen part on the first region and configured to display visual information and perform an inputting operation in a tactile manner, and a touch pad part corresponding to the second region and configured to input information corresponding to a touch applied to a pre-set position on the second region.Type: ApplicationFiled: April 18, 2013Publication date: September 5, 2013Applicant: LG ELECTRONICS INC.Inventors: Seong-Cheol LEE, Han-Cyu OH, Hyo-Sung PARK, Jun-Hyuck SONG, Sang-Min PARK, Jea-Woon PARK
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Patent number: 8519962Abstract: A mobile terminal includes: a terminal main body having a wireless communication module; a wireless keypad configured to input information to the terminal main body and operating in a tactile manner; and a driving unit configured to operate the wireless keypad by using power of the terminal main body, wherein the driving unit includes: first and second electrodes mounted in the terminal main body and the wireless keypad; an electric field formation unit provided in the terminal body and applying voltage to the first electrode to form an electric field between the first and second electrodes; and a controller mounted in the terminal body and detecting information regarding a touch applied to the wireless keypad based on a change in the electric field generated by a touch applied to the wireless keypad.Type: GrantFiled: October 21, 2010Date of Patent: August 27, 2013Assignee: LG Electronics Inc.Inventors: Junhee Han, Dongseuck Ko, Seong-cheol Lee, Sunwon Yoo