Patents by Inventor Cheol Kim

Cheol Kim 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: 20240128915
    Abstract: Disclosed is a motor driving apparatus including: a motor; an inverter including a switching element for driving the motor; a controller for controlling the switching element; a resolver including an excitation winding and a detection winding; and a resolver chip applying an excitation signal to the excitation winding by inputting a periodic signal from the controller, and receiving a feedback signal from the detection winding, wherein the resolver chip determines the number of rotations of the motor based on a change in a pulse width of a detection signal resulting from a comparison between a voltage of the feedback signal and a preset voltage, and output a signal to the inverter for setting an inertial driving control mode according to the number of rotations of the motor in a failure state of the controller.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 18, 2024
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Tae Hwan KANG, Hyung Min PARK, Joo Won PARK, Beom Cheol CHO, Yun Ho CHOI, Yeon Ho KIM, Won Hee JO
  • Publication number: 20240123386
    Abstract: A filter holder comprises: a plurality of filter frames disposed such that at least some thereof are adjacent to each other; and a folding member which supports filter frames, from among the plurality of filter frames, adjacent to each other so as to be rotatable with respect to each other. The folding member comprises: a folding part which has a predetermined thickness and is flexible so as to be foldable by means of rotation of the adjacent filter frames adjacent with respect to each other; and a plurality of edge parts which are connected to the respective sides of the folding part with the folding portion therebetween and rotate together with the adjacent filter frames, and wherein when viewed from a cross-section of the folding member, the edge parts may have a greater thickness than the folding part.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 18, 2024
    Applicant: COWAY CO.,LTD.
    Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK
  • Publication number: 20240127892
    Abstract: There are provided a memory device and an operating method of the memory device. The memory device includes: a memory block including a plurality of sub-blocks; a peripheral circuit for performing first program and erase operations in a first manner in a first sub-block, among the plurality of sub-blocks, and performing second program and erase operations in a second manner in a second sub-block, among the plurality of sub-blocks; and a control circuit configured to, when a cycling number of the second program and erase operations that are performed in the second sub-block is equal to or greater than a reference number, control the peripheral circuit to perform a compensation operation that compensates for a threshold voltage of memory cells included in the first sub-block.
    Type: Application
    Filed: April 6, 2023
    Publication date: April 18, 2024
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Yun Cheol KIM, Hae Chang YANG
  • Publication number: 20240124384
    Abstract: Provided is a method for preparing an asymmetric linear carbonate, the method comprising: subjecting two kinds of different symmetric linear carbonates to a transesterification reaction in the presence of a metal alkoxide catalyst to prepare an asymmetric linear carbonate, wherein the metal of the metal alkoxide is at least one selected from the group consisting of aluminum (Al), magnesium (Mg), germanium (Ge), gallium (Ga), cobalt (Co), calcium (Ca), hafnium (Hf), iron (Fe), nickel (Ni), niobium (Nb), molybdenum (Mo), lanthanum (La), rhenium (Re), scandium (Sc), silicon (Si), tantalum (Ta), tungsten (W), yttrium (Y), zirconium (Zr) and vanadium (V). Also provided is an asymmetric linear carbonate including the metal alkoxide catalyst.
    Type: Application
    Filed: November 22, 2022
    Publication date: April 18, 2024
    Inventors: Hyunyoung LEE, Jun Beom PARK, Hyun Cheol KIM
  • Patent number: 11959857
    Abstract: Provided is a Raman scattering measurement apparatus including a light source which emits light to smoke particles, a filter configured to block light which is incident to the smoke particles and passes through the particle and to allow Raman scattered light to pass therethrough, and a photodetector which detects the Raman scattered light passing through the filter in order to distinguish fire smoke generated due to a true fire from non-fire smoke generated due to daily life or industrial activity. The present invention also provides a fire determination apparatus including a unit which reads a Raman shift from Raman scattered light detected by the photodetector of the Raman scattering measurement apparatus, estimates a smoke component from the read Raman shift, and determines fire/non-fire from the estimated smoke component and a method thereof.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: April 16, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hoe Sung Yang, Soo Cheol Kim, Hyun Seok Kim, Sang Hyun Mo, So Young Park, Kang Bok Lee, Kyu Won Han
  • Patent number: 11961561
    Abstract: The present technology relates to an electronic device. According to the present technology, a memory device having improved verify accuracy may include a memory block including memory cells, a read and write circuit including a plurality of page buffers, a current sensing circuit configured to perform a verify operation of comparing sensing voltages with a reference voltage, and a control logic configured to control the current sensing circuit to perform the verify operation. The control logic controls performing a first verify operation on each of page buffer groups having a same logical group number, and performing a second verify operation on each of page buffer groups having a same physical group number, and the current sensing circuit outputs a verify pass signal in response to both results of the first verify operation and the second verify operation satisfying a pass criterion.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: April 16, 2024
    Assignee: SK hynix Inc.
    Inventors: Jong Woo Kim, Young Cheol Shin
  • Patent number: 11959193
    Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: April 16, 2024
    Assignee: Korea Institute of Science and Technology
    Inventors: Dae Yoon Kim, Ki Hyun Ryu, Bon Cheol Ku, Jun Yeon Hwang, Nam Dong Kim, Dong Ju Lee, Seo Gyun Kim
  • Publication number: 20240122045
    Abstract: A display device includes: a display panel including a first light emitting area to emit a source light; a barrier wall on the display panel, and having a first opening corresponding to the first light emitting area; a first light control pattern in the first opening; and a light shielding pattern between the display panel and the barrier wall, and overlapping with the barrier wall and the first opening. The light shielding pattern overlaps with a portion of the first light control pattern.
    Type: Application
    Filed: August 24, 2023
    Publication date: April 11, 2024
    Inventors: GAK SEOK LEE, KEUNCHAN OH, MIN-JAE KIM, KYUNGHAE PARK, JAE CHEOL PARK, INSEOK SONG, JISEONG YANG
  • Publication number: 20240120263
    Abstract: A semiconductor package includes a package substrate, an interposer mounted on the package substrate via first conductive bumps; first and second semiconductor devices on the interposer and spaced apart from each other, mounted on the interposer via second conductive bumps and having concavo-convex patterns respectively formed in upper surfaces thereof; and a sealing member on the interposer covering the first and second semiconductor devices and exposing the concavo-convex patterns. The concavo-convex pattern of the first semiconductor device includes a plurality of first pillar structures provided in the upper surface of a first region of the first semiconductor device and having a first width, and a plurality of second pillar structures provided in the upper surface of a second region of the first semiconductor device and having a second width greater than the first width.
    Type: Application
    Filed: September 13, 2023
    Publication date: April 11, 2024
    Inventors: CHEOL KIM, HWANYOUNG CHOI, SEOKHYUN LEE
  • Publication number: 20240118758
    Abstract: A display device includes: a pixel including a light emitting element; a sensor including a sensing element and a sensor driving circuit; and a sensor driver to output a sensor scan signal to the sensor driving circuit. The sensor driver includes: a switching circuit connected between a first input terminal for receiving a first clock signal of a first operating frequency and a first clock node, and to output a first filtering clock signal of a second operating frequency to the first clock node in response to a first enable signal; and a driving circuit to output the sensor scan signal in response to the first filtering clock signal of the first clock node.
    Type: Application
    Filed: August 7, 2023
    Publication date: April 11, 2024
    Inventors: HEERIM SONG, TAEGYUN KIM, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
  • Publication number: 20240118874
    Abstract: Disclosed are an electronic apparatus capable of applying the design of a UI component based on the device's usage environment and the operating method thereof. The present invention presents an electronic apparatus capable of dynamically changing and applying the design of a UI component configuring an application according to a usage environment of an electronic apparatus which drives the application and the operating method thereof to provide an appropriate UI design according to the device's usage environment of a user to the user.
    Type: Application
    Filed: August 22, 2023
    Publication date: April 11, 2024
    Applicant: TOBESOFT CO., LTD.
    Inventors: JeongBeom PARK, Songi PARK, Woo cheol LEE, Jea Il KIM
  • Publication number: 20240118028
    Abstract: An infrared heat source module is configured to minimize problems such as wrinkles or cracks in electrodes even if the patterns of a coated part and an uncoated part of the electrodes present in a current collector vary. The module improves a drying efficiency of the coated part of the current collector. An electrode using the infrared heat source module is manufactured by a process.
    Type: Application
    Filed: January 27, 2022
    Publication date: April 11, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Soon Sik Choi, Young Kuk Ko, Oh Cheol Kwon, Ji Hwan Kim, Jeong Won Lee
  • 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
  • Publication number: 20240119948
    Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
    Type: Application
    Filed: June 21, 2023
    Publication date: April 11, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Tae Jin LEE, Seung-Kwon BAEK, Min Je KIM, Dae Young JANG, Jeongil SEO, Kyeongok KANG, Jin-Woo HONG, Hochong PARK, Young-Cheol PARK
  • Publication number: 20240121924
    Abstract: A water-cooled heat dissipation module assembly capable of cooling a power module of a vehicle driving inverter system using a battery or fuel cell. The water-cooled heat dissipation module assembly includes a housing unit provided in the form of a housing having an opening portion at least partially opened at one side thereof. The housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser.
    Type: Application
    Filed: August 4, 2022
    Publication date: April 11, 2024
    Inventors: Kwan Ho RYU, Jeong Keun LEE, Min Woo LEE, Ju Hyun SUN, Tae Keun PARK, Kang Wook PARK, Lee Cheol JI, Hyeok Chul YANG, Tae Heon KIM, Keun Jae LEE
  • 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
  • Patent number: 11955027
    Abstract: Provided is an information output apparatus and method. The information output apparatus includes a plurality of expression members configured to protrude or retract by moving in at least one direction and being sensed by a user when protruding or retracting; an activation area calculator configured to calculate a series of braille letters as an activation area on the plurality of expression members; a non-activation area calculator configured to calculate a space between the braille letters as a non-activation area in the activation area; and a plurality of actuation controllers configured to actuate expression members corresponding to the activation area to protrude or retract and configured to actuate expression members corresponding to the non-activation area to retract.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 9, 2024
    Assignee: DOT INCORPORATION
    Inventors: Ju Yoon Kim, Ji Ho Kim, Hyeon Cheol Park
  • Publication number: 20240108536
    Abstract: A thermo-therapeutic apparatus and a method for controlling the same are provided.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Applicant: CERAGEM CO., LTD
    Inventors: Dong Myoung LEE, Ki Sung KIM, Sang Cheol HAN, Jin Cheol PARK
  • Publication number: 20240111130
    Abstract: An optical system according to an embodiment includes first to third lenses disposed along an optical axis from an object side to a sensor side direction, wherein the first lens has a meniscus shape convex toward the object side, and satisfies 1.7?nt_1?2.3 and TTL?6 mm. (nt_1 is the refractive index of the first lens with respect to the light of the t-line wavelength band, and TTL is the distance on the optical axis from the object-side surface of the first lens to the upper surface of the image sensor.
    Type: Application
    Filed: February 9, 2022
    Publication date: April 4, 2024
    Inventors: Chang Gyun SON, Ki Cheol KIM, Jun Young LIM
  • Publication number: 20240110801
    Abstract: Provided are an apparatus and method for guiding customized route based on disability information, and the method of guiding customized route based on disability information includes selecting candidate routes from a departure position to a destination position from or to which a user intends to move, obtaining disability information including a disability type and a disability degree of the user, evaluating movement convenience of the user for each of the candidate routes in consideration of the disability information, and determining guidance route information from the candidate routes in consideration of an evaluation result.
    Type: Application
    Filed: November 26, 2022
    Publication date: April 4, 2024
    Inventors: Ji Ho KIM, Ju Yoon KIM, Hyeon Cheol PARK