Patents by Inventor Ji Cheol Lee

Ji 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: 11371516
    Abstract: A motor for dual fans includes: a body on which a stator is installed; a shaft which is coupled to a rotor located to be opposite to the stator to rotate together and is extended to an upper part and a lower part of the body; a first fan which is coupled to an upper part of the shaft; and a second fan which is coupled to a lower part of the shaft, characterized in that a first unidirectional bearing is coupled to the first fan, and thereby an inner race of the first unidirectional bearing is coupled to an upper part of the shaft to rotate, and a second unidirectional bearing is coupled to the second fan, and thereby an inner race of the second unidirectional bearing is coupled to the lower part of the shaft to rotate.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: June 28, 2022
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Ji Min Lee
  • Publication number: 20220194883
    Abstract: The present disclosure relates to an organic compound being represented by Formula 1, an organic light emitting diode including the organic compound and an organic light emitting device including the organic light emitting diode. The organic compound is included in an organic layer of the organic light emitting diode.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 23, 2022
    Applicants: LG Display Co., Ltd, LG CHEM, LTD.
    Inventors: Ji-Cheol SHIN, Shin-Han KIM, Jeong-Dae SEO, Joo-Yong YOON, Jun YUN, Dong-Heon KIM, Yong-Han LEE, Sung-Jae LEE
  • Patent number: 11345249
    Abstract: A power conversion apparatus for multi-voltage charging is provided. The power conversion apparatus includes a housing, a motor connecting terminal disposed at one side of the housing, a relay having a first end electrically connected to the motor connecting terminal, and a capacitor having a first terminal electrically connected to a second end of the relay, and second and third terminals respectively connected to positive and negative terminals of an external battery, wherein the motor connecting terminal, the relay, and the first, second and third terminals are disposed within the housing along an outer edge of the housing.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: May 31, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ki Jong Lee, Sang Cheol Shin, Young Seul Lim, Ji Woong Jang, Yoo Jong Lee, Jun Hwan Kim, Seong Min Lee
  • Patent number: 11342401
    Abstract: A display device includes: a base substrate having a display region including a first region and a second region, and a non-display region; a first semiconductor layer including polysilicon at the second region; a first conductive layer on a first insulating layer, and including a bottom gate electrode at the first region and a second-first gate electrode at the second region; a second semiconductor layer including an oxide on a second insulating layer at the first region; a second conductive layer on a third insulating layer, and including a top gate electrode at the first region and a second-second gate electrode at the second region; and a third conductive layer on a fourth insulating layer, and including a first source electrode and a first drain electrode connected to the second semiconductor layer, and a second source electrode and a second drain electrode connected to the first semiconductor layer.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Eun Choi, Deok Hoi Kim, Jeong Hwan Kim, Jong Baek Seon, Jun Cheol Shin, Jae Hak Lee
  • Patent number: 11333349
    Abstract: Disclosed herein are a fluid sand falling type circulating fluidized bed boiler with a plurality of risers for preventing erosion and corrosion of water tubes and increasing combustion efficiency, and a method of operating the same. The fluid sand falling type circulating fluidized bed boiler with a plurality of risers includes a boiler section into which fuel and oxidizer are injected, a riser section connected to the boiler section so that the fuel and fluid sand supplied from the boiler section are introduced from the bottom of the riser section and flow up, and a relay section provided on the boiler section to supply the fluid sand having passed through the riser section to the boiler section, wherein the fuel is injected from the top of the boiler section and burned while flowing down therein.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: May 17, 2022
    Assignees: Korea Institute of Industrial Technology, Korea Institute of Energy Research, Korea Institute of Machinery & Materials
    Inventors: Uen Do Lee, Byeong Ryeol Bang, Young Doo Kim, Soo Hwa Jeong, Chang Won Yang, Jae Goo Lee, Tae Young Mun, Myung Won Seo, Ji Hong Moon, Hyun Seol Park, Joon Mok Shim, Young Cheol Park, Do Won Shun, Jong Ho Moon, Dal Hee Bae, Sung Ho Jo, Yun Tae Hwang, Sang In Keel, Jin Han Yun, ChungKyu Lee, Pil Woo Heo
  • Publication number: 20220149733
    Abstract: A DC-DC converter includes: a first capacitor; a first switching element, a second switching element, a third switching element, and a fourth switching element sequentially connected to one another in series between both ends of the first capacitor; a second capacitor having both ends connected at a connection node of the first switching element and the second switching element and a connection node of the third switching element and the fourth switching element, respectively; and a controller configured to determine whether an overvoltage is applied to both ends of the first to fourth switching elements, respectively, based on a first sensed voltage obtained by sensing a voltage applied to the first capacitor and a second sensed voltage obtained by sensing a voltage applied to the second capacitor.
    Type: Application
    Filed: August 23, 2021
    Publication date: May 12, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Yoo Jong LEE, Ji Woong JANG, Ki Jong LEE, Sang Cheol SHIN
  • Publication number: 20220104313
    Abstract: A 5G or pre-5G communication system is provided to support higher data transmission rates after 4G communication systems such as LTE. To support communication of a terminal that dually accesses a first radio access technology (RAT) communication system and a second RAT communication system, a session generation request message for transmitting traffic is received from a terminal. A target communication system that is to generate a data path with respect to the traffic from the first RAT communication system and the second RAT communication system is determined, the data path for the target communication system is configured, and information about the configured data path is transmitted to the terminal.
    Type: Application
    Filed: December 13, 2021
    Publication date: March 31, 2022
    Inventors: Jung-Shin PARK, Ki-Suk KWEON, Sang-Jun MOON, Ji-Cheol LEE, Jin-Sung LEE
  • Patent number: 11206711
    Abstract: A 5G or pre-5G communication system is provided to support higher data transmission rates after 4G communication systems such as LTE. To support communication of a terminal that dually accesses a first radio access technology (RAT) communication system and a second RAT communication system, a session generation request message for transmitting traffic is received from a terminal. A target communication system that is to generate a data path with respect to the traffic from the first RAT communication system and the second RAT communication system is determined, the data path for the target communication system is configured, and information about the configured data path is transmitted to the terminal.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: December 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Shin Park, Ki-Suk Kweon, Sang-Jun Moon, Ji-Cheol Lee, Jin-Sung Lee
  • Patent number: 11050810
    Abstract: The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services based on 5G communication technology and IoT-related technology (e.g. smart homes, smart buildings, smart cities, etc.). A method for receiving image data for a virtual-reality streaming service by an electronic device according to an embodiment of the present invention comprises: a step in which the electronic device determines whether to execute an adaptive virtual-reality streaming service on the basis of a bandwidth state; and a step in which, if it is determined to execute the adaptive virtual-reality streaming service, the electronic device requests and receives, from a server, the image data for the adaptive virtual-reality streaming service on the basis of head-tracking information and bandwidth information collected in advance.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Shin Park, Joo-Hyung Lee, Ji-Cheol Lee, Han-Na Lim, Jin-Sung Lee, Hyung-Ho Lee
  • Patent number: 11044636
    Abstract: A method for detecting a section where congestion occurs in a data transmission path by a user equipment (UE) comprises receiving a first probe packet, receiving a second probe packet, measuring an interval in time of reception between the first probe packet and the second probe packet, determining whether the measured time interval exceeds a threshold, and determining whether a bottleneck occurs using a result of the determination and information contained in the probe packets, wherein the information contained in the probe packets is information about the time interval between the probe packets and transmission rates of load packets.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 22, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Jun Moon, Jin-Sung Lee, Ki-Suk Kweon, Jung-Shin Park, Ji-Cheol Lee, Hyung-Ho Lee
  • Patent number: 10880736
    Abstract: The present invention relates to a method for transmitting an encrypted message at a transmission device, the method comprising: if a first user input to run a message application is detected, displaying a keyboard supporting a security mode; detecting a second user input to select the security mode; switching to the security mode in response to the second user input, and then receiving a message input by a user and temporarily storing the message; if a writing completion instruction of the message is detected on the keyboard, encrypting the message; and transmitting, to a reception device, the encrypted message.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: December 29, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Han Park, Bo-Gyeong Kang, Jung-Je Son, Duckey Lee, Ji-Cheol Lee, Jung-Hwan Lim
  • Publication number: 20200356928
    Abstract: Provided is a collaborative Personal Assistant (PA) system for delegating provision of services by third party task providers. The system includes a contextual reasoned for searching for a first third party task provider supporting a first task required by a user input by using natural language input patterns for tasks supported by services operated by the third party task providers; and a server comprised of a task delegate unit for providing to the user a service and an action required by the user input for the first task, and providing additional service and actions supporting the first task to the user regardless of the user input.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Inventors: Ji-Cheol Lee, Sung-Ho Choi
  • Patent number: 10785675
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure relates to a method and a device for controlling traffic of an electronic device in a wireless communication system, and the method can comprise the steps of: detecting a plurality of parts of traffic flows corresponding to at least one application; and preferentially processing the plurality of parts of traffic flows on the basis of application related information on each of the detected plurality of parts of traffic flows.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: September 22, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-Ho Lee, Beom-Sik Bae, Ji-Cheol Lee
  • Publication number: 20200260253
    Abstract: A method and an apparatus for providing, setting, maintaining, and releasing a packet data network (PDN) connection on the basis of a local area in a wireless communication system are provided. The method includes receiving the PDN subscription information on the basis of the local area from a business operator server, inspecting whether the current location information for the terminal exists in the PDN subscription information on the basis of the local area, and starting a procedure for setting the PDN on the basis of the local area when the current location information exists therein.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Inventors: Ji-Cheol LEE, Song-Yean CHO, Sung-Ho CHOI
  • Patent number: 10728836
    Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate after a 4G communication system such as LTE. Disclosed is a method and device for providing a data service through a mobile communication network. The method of the present invention comprises the steps of: receiving a connection request message including a device identifier of a terminal which is not subscribed to a mobile communication network; determining, using the device identifier of the terminal, whether the terminal corresponds to a contract for using the mobile communication network; configuring the terminal to perform limited access to the mobile communication network according to the contract when the terminal corresponds to the contract for using the mobile communication network; and transmitting, to the terminal, a connection acceptance message granting the limited access.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha-Kyung Jung, Ki-Suk Kweon, Ji-Cheol Lee, Hyung-Ho Lee
  • Publication number: 20200187301
    Abstract: The present disclosure pertains to a 5G or pre-5G communication system that is to be provided so as to support higher data transmission rates after 4G communication systems such as LTE. The present disclosure provides a method for operating an apparatus for supporting communication of a terminal that dually accesses a first radio access technology (RAT) communication system and a second RAT communication system, the method comprising the operations of: receiving from the terminal a session generation request message for transmitting traffic; determining a target communication system that is to generate a data path with respect to the traffic from the first RAT communication system and the second RAT communication system; configuring the data path for the target communication system; and transmitting to the terminal information about the configured data path.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 11, 2020
    Inventors: Jung-Shin PARK, Ki-Suk KWEON, Sang-Jun MOON, Ji-Cheol LEE, Jin-Sung LEE
  • Patent number: 10681750
    Abstract: The present invention relates to a 5G or pre-5G communication system for supporting high data throughput beyond the 4G communication systems such as LTE. A method for a server for supporting the mobility of a user equipment (UE) in a mobile communication network comprises the steps of: establishing an IP flow with the UE utilizing a first IP address to transceive data; receiving a message comprising a second IP address allocated to the UE and an identifier for the IP flow; generating a tunnel interface for communicating with the UE having the second IP address as the ending IP address, and binding the IP flow allocated to the identifier to the generated tunnel interface; and transceiving data with the UE by means of the tunnel interface.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: June 9, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yegin Alper, Jung-Shin Park, Beom-Sik Bae, Ji-Cheol Lee, Jin-Sung Lee
  • Patent number: 10645564
    Abstract: A method and an apparatus for providing, setting, maintaining, and releasing a packet data network (PDN) connection on the basis of a local area in a wireless communication system are provided. The method includes receiving the PDN subscription information on the basis of the local area from a business operator server, inspecting whether the current location information for the terminal exists in the PDN subscription information on the basis of the local area, and starting a procedure for setting the PDN on the basis of the local area when the current location information exists therein.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 5, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Cheol Lee, Song-Yean Cho, Sung-Ho Choi
  • Patent number: 10631030
    Abstract: A technique for providing a video streaming service is provided. A method of a mobile device for providing a video streaming service includes sending periodically location and moving path information of the mobile device to a first server, receiving bitrate information per location predicted according to a moving path of the mobile device, from the first server, determining a bitrate for a current location of the mobile device based on the predicated bitrate information per location of the mobile device, and requesting a second server to send video segments based on the bitrate.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: April 21, 2020
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Hyung-Ho Lee, Taekyoung Kwon, Han-Na Lim, Dookyoon Han, Ji-Cheol Lee, Youngbin Im, Taejoong Chung
  • Patent number: 10560818
    Abstract: The present invention relates to a method, packet data network gateway (PGW), and server in a mobile communication system and device for controlling charging in a mobile communication system. The method by a PGW in a mobile communication system includes identifying data usage information associated with a specific service for a terminal, determining whether the data usage information satisfies a predetermined condition, and transmitting a notification message including the data usage information if the data usage information satisfies the predetermined condition, to a policy and charging rules function (PCRF) entity. The data usage information is used to display a message in the terminal.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: February 11, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Song Yean Cho, Ji Cheol Lee, Sung Ho Choi, Joon Ho Park, Kill Yeon Kim, Ki Suk Kweon