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).

  • Patent number: 11979488
    Abstract: 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: Grant
    Filed: October 29, 2021
    Date of Patent: May 7, 2024
    Assignees: Samsung SDS Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Joo Hee Lee, Duk Jae Moon, Hyo Jin Yoon, Ji Hoon Cho, Seong Kwang Kim, Joo Young Lee, Jin Cheol Ha
  • Publication number: 20240119874
    Abstract: 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: Application
    Filed: October 4, 2023
    Publication date: April 11, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Byeon Cheol LEE, Seong Geon KIM, Won KIM, Tai Ming PIAO, Young Ho SHIN
  • Patent number: 11953066
    Abstract: 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: Grant
    Filed: April 1, 2022
    Date of Patent: April 9, 2024
    Assignees: 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
  • Publication number: 20240102611
    Abstract: 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: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicants: 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
  • Publication number: 20240078799
    Abstract: 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: Application
    Filed: August 31, 2023
    Publication date: March 7, 2024
    Inventors: Young Il KIM, Seong Hee PARK, Geon Min YEO, Il Woo LEE, Wun Cheol JEONG, Tae Wook HEO
  • Publication number: 20240068460
    Abstract: 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: Application
    Filed: July 13, 2022
    Publication date: February 29, 2024
    Inventors: Hyung In Choi, Seong Gyu Gong, Young Min Kim, Eun Gi Son, Joo Young Lee, Soo Cheol Jeong
  • Publication number: 20230102896
    Abstract: 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: Application
    Filed: January 9, 2020
    Publication date: March 30, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Ah Rah KOH, Hak Ho CHOI, Seong Cheol LEE, Sung Do KIM
  • Patent number: 10437456
    Abstract: 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: Grant
    Filed: August 19, 2016
    Date of Patent: October 8, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Seong Cheol Lee, Jin Seo, Sang Hyun Park
  • Patent number: 10125829
    Abstract: 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: Grant
    Filed: June 9, 2015
    Date of Patent: November 13, 2018
    Assignee: WONKWANG E&TECH CO., LTD.
    Inventors: Dong Geun Lee, Byeong Cheol Baek, Seong Cheol Lee, Seong Jin Kim
  • Publication number: 20170175829
    Abstract: 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: Application
    Filed: June 9, 2015
    Publication date: June 22, 2017
    Inventors: Dong Geun Lee, Byeong Cheol Baek, Seong Cheol Lee, Seong Jin Kim
  • Publication number: 20160357397
    Abstract: 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: Application
    Filed: August 19, 2016
    Publication date: December 8, 2016
    Applicant: LG Electronics Inc.
    Inventors: Seong Cheol LEE, Jin SEO, Sang Hyun PARK
  • Patent number: 9436378
    Abstract: 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: Grant
    Filed: June 10, 2015
    Date of Patent: September 6, 2016
    Assignee: LG Electronics Inc.
    Inventors: Seong Cheol Lee, Jin Seo, Sang Hyun Park
  • Patent number: 9163675
    Abstract: 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: Grant
    Filed: December 7, 2011
    Date of Patent: October 20, 2015
    Assignee: WONKWANG E & TECH CO., LTD.
    Inventors: Dong Guen Lee, Seong Cheol Lee, Seong Jin Kim, Byeong Cheol Baek
  • Publication number: 20150277695
    Abstract: 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: Application
    Filed: June 10, 2015
    Publication date: October 1, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Seong Cheol LEE, Jin SEO, Sang Hyun PARK
  • Patent number: 9112988
    Abstract: 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: Grant
    Filed: December 1, 2008
    Date of Patent: August 18, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Seong Cheol Lee, Jin Seo, Sang Hyun Park
  • Publication number: 20140332337
    Abstract: 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: Application
    Filed: December 7, 2011
    Publication date: November 13, 2014
    Applicant: WONKWANG E & TECH CO., LTD.
    Inventors: Dong Guen Lee, Seong Cheol Lee, Seong Jin Kim, Byeong Cheol Baek
  • Patent number: 8712479
    Abstract: 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: Grant
    Filed: April 18, 2013
    Date of Patent: April 29, 2014
    Assignee: LG Electronics Inc.
    Inventors: Seong-Cheol Lee, Han-Gyu Oh, Hyo-Sung Park, Jun-Hyuck Song, Sang-Min Park, Jea-Woon Park
  • Patent number: 8607165
    Abstract: 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: Grant
    Filed: July 18, 2008
    Date of Patent: December 10, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seong Cheol Lee, Min Taik Lim, Jun Hyuck Song
  • Publication number: 20130231162
    Abstract: 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: Application
    Filed: April 18, 2013
    Publication date: September 5, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Seong-Cheol LEE, Han-Cyu OH, Hyo-Sung PARK, Jun-Hyuck SONG, Sang-Min PARK, Jea-Woon PARK
  • Patent number: 8519962
    Abstract: 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: Grant
    Filed: October 21, 2010
    Date of Patent: August 27, 2013
    Assignee: LG Electronics Inc.
    Inventors: Junhee Han, Dongseuck Ko, Seong-cheol Lee, Sunwon Yoo