Patents by Inventor In Hwan Choi

In Hwan Choi 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: 11596381
    Abstract: A system may include an ultrasound probe and a controller unit configured to communicate with the ultrasound probe. The controller unit may be further configured to transmit ultrasound signals using the ultrasound probe toward an area of interest in a patient's body, wherein the ultrasound signals include a fundamental frequency signal and at least one harmonic frequency signal; receive echo signals from the area of interest based on the transmitted ultrasound signals; obtain a fundamental frequency echo signal and at least one harmonic frequency echo signal from the received echo signals; and generate a visual representation of the area of interest based on the obtained fundamental frequency echo signal and the obtained at least one harmonic frequency echo signal.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 7, 2023
    Assignee: Verathon Inc.
    Inventors: Joon Hwan Choi, Fuxing Yang
  • Patent number: 11592958
    Abstract: A method for controlling a display device that includes a touch screen is provided. The method includes establishing a plurality of window display spaces in the touch screen, wherein each of the plurality of window display spaces displays a window for running an application, displaying a launcher application in one of the plurality of window display spaces, the launcher application presenting at least one icon to run at least one application, receiving in the launcher application a new application run command to run a new application, and displaying a new window for running the new application in one of the other window display spaces than the window display space where the launcher application is displayed, in response to the new application run command.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: February 28, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Jin Kim, Kang-Tae Kim, Dae-Wook Park, Seung-Woon Lee, Jung-Hwan Choi
  • Publication number: 20230056973
    Abstract: A display device includes: a display module, a lifting part disposed on a rear surface of the display module and connected to the display module, and a drive belt connected to the lifting part and which moves in a first direction to extend and retract the lifting part in the first direction. The drive belt moves along a guide groove that is defined in the lifting part and that is open in the first direction.
    Type: Application
    Filed: April 13, 2022
    Publication date: February 23, 2023
    Inventors: TAE WOONG KIM, SANGJUN LEE, BEOMJIN KIM, JONGHWA LEE, JIN HWAN CHOI
  • Publication number: 20230057178
    Abstract: A semiconductor device including an error amplifier configured to receive a voltage of an output node and a reference voltage, a flipped voltage follower (FVF) circuit configured to receive an output of the error amplifier and maintain the voltage of the output node at the reference voltage, and a bias current control circuit configured to receive first to third mode signals, control a magnitude of a bias current flowing through the FVF circuit based on the first to third mode signals, control the bias current of a first magnitude, based on the first mode signal, control the bias current of a second magnitude smaller than the first magnitude, based on the second mode signal, and control the bias current of a third magnitude smaller than the second magnitude, based on the third mode signal.
    Type: Application
    Filed: May 13, 2022
    Publication date: February 23, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyoung Jun ROH, Jae Woo PARK, Jun Han CHOI, Myoung Bo KWAK, Jung Hwan CHOI
  • Patent number: 11579246
    Abstract: A radar apparatus includes an antenna device including a first transmitting antenna, a second transmitting antenna, and a receiving antenna, a transceiver configured to transmit a transmission signal through one of the first transmitting antenna and the second transmitting antenna and receive a reflection signal reflected on an object through the receiving antenna, and a controller configured to process the reflection signal received through the receiving antenna to obtain information on the object, wherein the controller controls the transceiver to receive the reflection signal through the second transmitting antenna and the receiving antenna when the transmission signal is transmitted through the first transmitting antenna.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: February 14, 2023
    Assignee: HL KLEMOVE CORP.
    Inventors: Han Byul Lee, Jung Hwan Choi
  • Patent number: 11582337
    Abstract: An artificial intelligence system and method are disclosed herein. The system includes a processor which implements the method, including: receiving by an input unit a first user input including a request to execute a task using at least one of the electronic device or an external device, transmitting by a wireless communication unit first data associated with the first user input to an external server, receiving a first response from the external server including information associated with at least one of the first user input and a sequence of electronic device states for performing at least a portion of the task, receiving a second user input assigning at least one of a voice command and a touch operation received by a touch screen display as the request to perform the task, and transmitting second data associated with the second user input to the external server.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: February 14, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Il-Hwan Choi, Sang-Wook Kang, Young-Hoon Kim, Seung-Hoon Park, Hyun-Ju Seo, Tae-Kwang Um, Jae-Yong Lee, Jin-Ho Choi, Da-Som Lee, Jae-Yung Yeo
  • Patent number: 11581592
    Abstract: Disclosed herein is a battery case configured to receive an electrode assembly and an electrolytic solution therein, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, the battery case including a layer structure and a gas adsorption layer formed on the inner surface of the layer structure, the gas adsorption layer including a gas adsorption material layer configured to adsorb a reaction gas that may be generated within the battery case during abnormal functioning of the electrode assembly, and a blocking layer formed on an exposed surface of the gas adsorption material layer, the blocking layer configured to prevent the gas adsorption material layer from being exposed to an ambient gas during assembly of the battery case.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 14, 2023
    Inventors: Hee Seok Jeong, Eun Ju Lee, Hyun Min Kim, Jong Hwan Choi
  • Patent number: 11578864
    Abstract: Disclosed herein is a method of automatically cleaning boiler pipes. The provision of a pipe-cleaning tank on one side of a casing to store a cleaning solution therein and a tank supply valve in the pipe-cleaning tank allows the cleaning solution stored in the pipe-cleaning tank to automatically flow into a heat exchanger and various pipes inside the casing by means of only a simple operation of manipulating the tank supply valve, thereby making it easy to eliminate scale that has accumulated in the heat exchanger and the pipes.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: February 14, 2023
    Inventor: Young-Hwan Choi
  • Patent number: 11579765
    Abstract: Provided is an olfactory data sharing terminal including a receiver configured to receive olfactory data obtained by sensing an odor of an object through an olfactory sensor; a preference determiner configured to determine whether a user prefers the received olfactory data, based on a user olfactory function fuser(x); and a display displaying a user preference for the received olfactory data.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: February 14, 2023
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Eun Jang, Hyuk Jun Kwon, Che Il Moon, Kyung In Jang, Ji Hwan Choi, Han Kyoung Choe, Su Jin Heo
  • Publication number: 20230044436
    Abstract: One embodiment of the disclosure relates to a vehicle radar device and a method for controlling the same. According to the present embodiments, a vehicle radar device may comprise an antenna unit including Nt transmission antennas and Nr reception antennas, wherein Nt is a natural number equal to or larger than 1, and Nr is a natural number equal to or larger than 2, a transceiver controlling the transmission antenna to transmit a transmission signal and the reception antenna to receive a reception signal reflected by a target, a signal processor detecting one or more peak signals for the target and separately detecting Nt*Nr channel reception signals corresponding to each peak signal, a target angle estimator calculating a target angle estimate from k channel reception signals selected from among the Nt*Nr channel reception signals, and a target size information estimator calculating size information about the target based on up to NV*NrCk target angle estimates calculated by the target angle estimator.
    Type: Application
    Filed: July 24, 2022
    Publication date: February 9, 2023
    Inventors: Han Byul LEE, Jung Hwan Choi, Jingu Lee, Tae Hyeong Ha, Jae Hyun Han
  • Patent number: 11570915
    Abstract: A display device includes a display module extending in a first direction, a supporting portion disposed under the display module and which supports a part of the display module, a first driving part connected to a first end of the display module to roll and unroll the display module, a connecting portion connected to a second end of the display module, and a second driving part connected to the connecting portion to roll and unroll the connecting portion. The second driving part unrolls the connecting portion when the first driving part rolls the display module, and the second driving part rolls the connecting portion when the first driving part unrolls the display module.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeongho Kim, Hyungsik Kim, Dongwon Choi, Jin Hwan Choi, Hayk Khachatryan
  • Patent number: 11564656
    Abstract: A system includes an ultrasound probe comprising an ultrasound transducer, a first motor configured to rotate the ultrasound transducer around a horizontal axis to scan a plane, and a second motor configured to rotate the ultrasound transducer around a vertical axis to move to a different plane. The system further includes a controller unit configured to select a number of scan planes for an interlacing scan to scan a volume of an area of interest in a patient's body using the ultrasound probe; select an interlacing factor for the interlacing scan; divide the scan planes into groups of scan planes based on the interlacing factor; and perform the interlacing scan by controlling the first motor and the second motor, wherein the first motor moves in a first direction for at least some of the scan planes and in a second direction for other ones of the scan planes.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: January 31, 2023
    Assignee: Verathon Inc.
    Inventors: Joon Hwan Choi, Fuxing Yang
  • Publication number: 20230022828
    Abstract: An embodiment power train for a vehicle includes a first input shaft configured to receive rotating forces from a first motor and an engine, a second input shaft configured to receive a rotating force from a second motor, an output shaft disposed in parallel with the first input shaft and the second input shaft, a transmission gear set in which a plurality of gear sets having different gear ratios are engaged with and coupled to the first input shaft and the output shaft, a shifting unit configured to select a gear set of the plurality of gear sets based on a traveling speed of the vehicle, and a motor-side transfer gear set engaged with and coupled to the second input shaft and the output shaft.
    Type: Application
    Filed: June 2, 2022
    Publication date: January 26, 2023
    Inventors: Jin Ho Kim, Yong Hwan Choi, Joo Hang Lee, Yong Hoo Kim
  • Publication number: 20230025974
    Abstract: Smart membranes (14) are integrated into a small, unmanned surface vessel (20) to enable the efficient, automated cleanup of oil spills. Such a vessel (20) has the potential to provide a low-cost, modular solution for day-to-day oil-spill cleanup operations, especially in confined aquatic areas, such as under piers and in the small spaces between marine vessels and piers. The smart membranes (14) are provided on the surface of a conveyor belt (34) that circulates the membranes (14) through the surrounding body of water (10) for oil collection, as well as through an internal reduction chamber (22) of the vessel (20) for oil release. The smart membranes (14) are adapted to attract and repel oil (12) in response to low-voltage commands applied across the conveyor belt (34), using a process that is repeatable for a number of cycles, offering high efficiency and long durability (FIG. 5).
    Type: Application
    Filed: August 4, 2022
    Publication date: January 26, 2023
    Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY
    Inventors: Eui-Hyeok Yang, Jian Xu, Wei Xu, Brendan Englot, Chang-Hwan Choi
  • Patent number: 11561763
    Abstract: An electronic device is provided. The electronic device includes a housing, a touchscreen display exposed through a first portion of the housing, a microphone disposed at a second portion of the housing, a speaker disposed at a third portion of the housing, a memory disposed inside the housing, a processor disposed inside the housing, and electrically connected to the display, the microphone, the speaker, and the memory. The memory is configured to store a plurality of application programs, each of which includes a graphic user interface (GUI).
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 24, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Jong Rhee, Ji Min Lee, Sang Ki Kang, Han Jun Ku, Sung Pa Park, Jang Seok Seo, In Wook Song, Won Ick Ahn, Kyoung Gu Woo, Ji Soo Yi, Chang Kyun Jeon, Ho Jun Jaygarl, Il Hwan Choi, Yoo Jin Hong, Ji Hyun Kim, Jae Yung Yeo
  • Publication number: 20230019365
    Abstract: The present disclosure relates to an aluminum compound, an aluminum-containing film-forming precursor composition including the aluminum compound, and a method of preparing an aluminum-containing film using the aluminum-containing film-forming precursor composition.
    Type: Application
    Filed: August 24, 2022
    Publication date: January 19, 2023
    Inventors: Jin Sik KIM, Myeong Ho KIM, Dae-Young KIM, Jun Hwan CHOI, In Jae LEE
  • Publication number: 20230019540
    Abstract: Provided are a three-dimensional semiconductor memory device, a method for manufacturing the same, a method for operating the same, and an electronic system including the same. The three-dimensional semiconductor memory device includes a substrate, a stack structure on the substrate, and vertical channel structures, which are provided in channel holes penetrating the stack structure, wherein each of the vertical channel structures includes a data storage pattern, a vertical channel pattern, a conductive pad, and a vertical semiconductor pattern, wherein the vertical channel pattern includes a first portion contacting the upper surface of the substrate and a second portion provided between the data storage pattern and the vertical semiconductor pattern, and wherein the vertical semiconductor pattern is spaced apart from the substrate with the first portion of the vertical channel pattern therebetween.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Yun Heub SONG, Sun Jun CHOI, Chang Hwan CHOI, Jae Kyeong JEONG
  • Publication number: 20230012361
    Abstract: A power semiconductor device includes a semiconductor layer based on silicon carbide (SiC), a vertical drift region positioned to extend in a vertical direction inside the semiconductor layer and having a first conductive type, a well region positioned in at least one side of the vertical drift region to make contact with the vertical drift region and having a second conductive type, recess gate electrodes extending from a surface of the semiconductor layer into the semiconductor layer and buried in the vertical drift region and the well region to cross the vertical drift region and the well region in a first direction, source regions positioned in the well region between the recess gate electrodes and having the first conductive type, and insulating-layer protective regions surrounding lower portions of the recess gate electrodes, respectively, in the vertical drift region, and having the second conductive type.
    Type: Application
    Filed: June 10, 2022
    Publication date: January 12, 2023
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Jeong Mok HA, Hyuk WOO, Tae Yeop KIM, Dong Hwan CHOI, Sin A KIM
  • Publication number: 20230009426
    Abstract: A power semiconductor device includes an SiC semiconductor layer, a plurality of well regions disposed in the semiconductor layer such that two adjacent well regions at least partially make contact with each other, a plurality of source regions on the plurality of well regions in the semiconductor layer, a drift region in a first conductive type, a plurality of trenches recessed into the semiconductor layer from the surface of the semiconductor layer, a gate insulating layer on an inner wall of each trench, a gate electrode layer disposed on the gate insulating layer and including a first part disposed in each trench and a second part on the semiconductor layer, and a pillar region positioned under the plurality of well regions to make contact with the drift region and the plurality of well regions in the semiconductor layer, and having a second conductive type.
    Type: Application
    Filed: May 29, 2022
    Publication date: January 12, 2023
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Sin A KIM, Tae Yeop KIM, Jeong Mok HA, Dong Hwan CHOI, Hyuk WOO
  • Patent number: 11548962
    Abstract: A self-healing polymer network containing a physical crosslinking agent, a composition therefor, and an optical element comprising the same is provided. The self-healing polymer network comprises a polymer derived from monomers including self-healing monomers each having a first polymerizable functional group and at least one of urethane, urea, or amide group chemically linked to the first polymerizable functional group, wherein the polymer has a backbone formed by polymerizing the first polymerizable functional groups of the self-healing monomers and a plurality of side groups each having at least one of urethane, urea, or amide group chemically linked to the backbone. In addition, the self-healing polymer network comprises a physical crosslinking agent which is an alcohol mixture having at least two of monool, diol, triol, and tetraol or the higher polyol and crosslinking the polymer by physically crosslinking the urethane, urea, or amide group of the side groups.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 10, 2023
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Dong Hack Suh, Kyoung Hwan Choi, Jeong Seop Oh