Patents by Inventor Woo-Jin Choi

Woo-Jin 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).

  • Publication number: 20210140905
    Abstract: A sensor tube according to the present disclosure includes a body including a body extension having opposite ends connected to measurement air connection pipes and an opening, the measurement air connecting pipes being connected to a humidity sensor to deliver moisture to the humidity sensor using measurement air or allow the measurement air released from the humidity sensor to flow therethrough, and the opening being formed in the body extension to cause an interior space of the body extension and the outside to be in communication with each other such that the moisture is introduced into the interior space of the body extension from the outside through the opening, and an opening/closing part that selectively opens or closes the opening by being operated by a difference in pressure between the interior space of the body extension and the outside.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 13, 2021
    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Yeon Sik KIM, Tae Soon KWON, Dong Jin EUH, Hae Seob CHOI, Woo Shik KIM
  • Patent number: 11002795
    Abstract: Provided is a charger with a battery diagnosis function and a control method thereof. The charger with a battery diagnosis function includes a DC-DC converter configured to operate in a charging mode to charge a battery or to operate in a diagnosing mode to apply a perturbation voltage to the battery when the battery is fully charged, and a digital signal processor configured to calculate an equivalent circuit model parameter of the battery according to an output response of the battery with respect to the perturbation voltage, to calculate a charging/discharging frequency of the battery by using an ohmic resistance value among the equivalent circuit model parameter of the battery, and to calculate a residual equivalent capacity of the battery by using the charging/discharging frequency of the battery.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: May 11, 2021
    Assignee: Foundation of Soongsil University-Industry Cooperation
    Inventors: Woo Jin Choi, Duck Min Kim
  • Patent number: 11002339
    Abstract: A power transmission apparatus for a vehicle may include a first input shaft directly connected to a motor/generator, a second and third input shafts coaxial and selectively connectable to the first input shaft, a torque mediating shaft coaxial with the first input shaft, an intermediate shaft and output shaft disposed in parallel with the first input shaft, a first shifting section receiving torque from the third input shaft and outputting a modified torque to the torque mediating shaft, a second shifting section including first planetary gear set, shifting torque of the first input shaft to output the shifted torque to the torque mediating shaft, and selectively stopping the torque mediating shaft, and a third shifting section including second planetary gear set, forming an output torque in combination of torques from the first and second shifting sections and the second input shaft, and outputting the output torque to the output shaft.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: May 11, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Cheol Ho Jang, Woochurl Son, Sun Sung Kwon, Seong Wook Hwang, Kijong Park, Yong Uk Shin, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Juhyeon Park, Minho Chae, Dongwoo Kim, Hye Jin Lim, Soonki Eo, Ki Dong Kim, Woo Jin Chang, Yong Sug Choi, Young Chan Gweon
  • Patent number: 11006467
    Abstract: Provided is a method and apparatus for processing control plane data to enable an evolve Node B (eNB) and a User Equipment (UE) to transmit and/or receive user plane data through a WLAN carrier when the user plane data is transmitted by adding a WLAN radio resource to an E-UTRAN carrier in a radio access network (RAN) level. Particularly, provided is a method for a UE to transmit and receive data, the method including: receiving, from an eNB, wireless local area network (WLAN) cell configuration information which is for transmitting and receiving data using a WLAN radio resource; performing WLAN association based on the WLAN cell configuration information; transmitting a WLAN access confirmation message to the eNB; and receiving, from the eNB through a higher layer signaling, tunnel configuration information which is for the UE to set up a tunnel with the eNB through the WLAN radio resource.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 11, 2021
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-jin Choi
  • Publication number: 20210130980
    Abstract: The present invention relates to: layered gallium arsenide (GaAs), which is more particularly layered GaAs, which, unlike the conventional bulk GaAs, has a two-dimensional crystal structure, has the ability to be easily exfoliated into nanosheets, and exhibits excellent electrical properties by having a structure that enables easy charge transport in the in-plane direction; a method of preparing the same; and a GaAs nanosheet exfoliated from the same.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Inventors: Woo Young SHIM, Sang jin CHOI, Hyesoo KIM
  • Patent number: 10998343
    Abstract: A thin-film transistor (TFT) array substrate is provided. The TFT array substrate includes a base substrate, a semiconductor layer disposed on the base substrate, an insulating layer disposed on the semiconductor layer, and a gate electrode disposed on the insulating layer. A top surface of a portion of the insulating layer overlapping the semiconductor layer in a plan view of the base substrate and a top surface of the gate electrode are placed on the same level.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung Kwon Choo, Joon Hwa Bae, Hyun Jin Cho, Jun Hyuk Cheon, Zi Yeon Yoon, Woo Jin Cho, Sung Hwan Choi, Jeong Hye Choi
  • Patent number: 10995165
    Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition (X1)a—Sn—(X2)4-a??[Formula 1] wherein, a, X1, and X2 are the same as defined in the disclosure.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 4, 2021
    Inventors: Suk Youn Kang, Soo Young Choi, Woo Jin Cho, Suk Joon Yoo, Jeong Heon Ahn, Jin Sook Ryu
  • Publication number: 20210126090
    Abstract: A semiconductor device including a device isolation layer defining an active region; a first trench in the device isolation layer; a second trench in the active region; a main gate electrode structure filling a portion of the first trench and including a first barrier conductive layer and a main gate electrode; a pass gate electrode structure filling a portion of the second trench and including a second barrier conductive layer and a pass gate electrode; a support structure filling another portion of the second trench above the pass gate electrode; a first capping pattern filling another portion of the first trench above the main gate electrode; and a second gate insulating layer extending along a bottom and sidewall of the second trench, wherein the second barrier conductive layer is between the second gate insulating layer and the pass gate electrode and extends along a bottom and sidewall thereof.
    Type: Application
    Filed: June 10, 2020
    Publication date: April 29, 2021
    Inventors: Hui-Jung KIM, Kyu Jin KIM, Sang-Il HAN, Kyu Hyun LEE, Woo Young CHOI, Yoo Sang HWANG
  • Publication number: 20210125766
    Abstract: A coil electronic component includes a magnetic body that includes a substrate and a coil part. The coil part includes patterned insulating films disposed on a surface of the substrate and a plating layer formed between the patterned insulating films by plating and having a thickness greater than or equal to its width measured parallel to the surface of the substrate. The plating layer may be formed in a single plating operation, and may have a thickness of 200 m or more.
    Type: Application
    Filed: December 30, 2020
    Publication date: April 29, 2021
    Inventors: Woon Chul CHOI, Jung Hyuk JUNG, Woo Jin LEE, Han Wool RYU
  • Publication number: 20210120522
    Abstract: Provided are methods and devices for performing positioning in a next-generation wireless network. The method of a UE for performing positioning include identifying configuration information for a transmission bandwidth of a positioning reference signal (PRS) configured per cell and receiving the positioning reference signal corresponding to each cell based on the configuration information for the transmission bandwidth.
    Type: Application
    Filed: April 8, 2019
    Publication date: April 22, 2021
    Applicant: KT CORPORATION
    Inventors: Ki-tae KIM, Woo-jin CHOI, KI-HYEON PARK
  • Publication number: 20210117980
    Abstract: A wireless/wired integrated biometric authentication terminal having a multiple safety lock function is provided. A customer payment system is formed in an electronic cover of the integrated biometric authentication terminal. The electronic cover has at least one of a fingerprint and finger vein authentication processing unit formed on one side, as a groove on which a finger can be put, to interoperate with the customer payment system of the POS terminal and a card information authentication processing unit formed on the other side and configured to interoperate with the customer payment system of the POS terminal to perform authentication processing on payment with a customer's card information. A customer LCD display unit for displaying a payment amount is formed on an upper front end of the electronic cover.
    Type: Application
    Filed: April 23, 2018
    Publication date: April 22, 2021
    Inventors: Sung Ho CHOI, Chung Ja SONG, Dae Jin PARK, Woo Kyoum KIM
  • Patent number: 10986530
    Abstract: Provided are methods and apparatuses for transmitting a buffer status report in carrier aggregation environment. The method may include receiving, from a base station, high layer signaling including information for configuring data duplicate transmission using carrier aggregation, configuring a plurality of radio link control (RLC) entities including a first RLC entity and a second RLC entity associated with one packet data convergence protocol (PDCP) entity based on the high layer signaling, and configuring a logical channel associated with the first RLC entity and a logical channel associated with the second RLC entity to one medium access control (MAC) entity; and when the data duplicate transmission is activated, transmitting, to the base station, the buffer status report including PDCP data volume in both a logical channel group associated with the first RLC entity and a logical channel group associated with the second RLC entity.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 20, 2021
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-Jin Choi
  • Publication number: 20210112522
    Abstract: Provided are a method and device for performing positioning in a new radio network. The method of a user equipment for performing positioning may include: receiving configuration information relating to subcarrier spacing within a frequency band through which a positioning reference signal (PRS) is transmitted; and receiving the positioning reference signal on the basis of the configuration information relating to the subcarrier spacing.
    Type: Application
    Filed: May 2, 2019
    Publication date: April 15, 2021
    Applicant: KT CORPORATION
    Inventors: Ki-tae KIM, Woo-jin CHOI
  • Patent number: 10979190
    Abstract: Provided are a method of configuring resource block (RB) indexing information about a component carrier (CC) by a base station (BS). The method may include: configuring common RB indexing information about the CC; configuring one or more bandwidth parts (BWPs) based on the common RB indexing information; and transmitting the common RB indexing information and configuration information about the bandwidth parts to a terminal.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 13, 2021
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10966253
    Abstract: Provided is a method for a base station executing a multi-beam-based random access procedure in wireless communication, and a device therefor. The method may include: transmitting information associated with a RACH resource to a terminal; receiving a multi-RACH preamble from the terminal by a multi-beam; and transmitting a random access response to the terminal.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: March 30, 2021
    Assignee: KT CORPORATION
    Inventors: Ki-tae Kim, Woo-jin Choi
  • Patent number: 10958380
    Abstract: Provided is a method of transmitting and receiving a data channel for the next-generation/5G radio access network. The method may include: receiving setting information about a code block group (CBG) for retransmission of the data channel from a base station; and receiving downlink control information (DCI) including scheduling information about the data channel from the base station, wherein the DCI includes transmission direction information about the CBG.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 23, 2021
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10952206
    Abstract: Provided is s a method for a base station to allocate a time interval resource to transceive a downlink data channel (PDSCH) or an uplink data channel (PUSCH). The method include allocating a time interval resource for each OFDM symbol on the basis of a slot or a mini-slot, transmitting, to a terminal, time interval resource configuration information including OFDM symbol allocation data for OFDM symbols used for data channel transception in the slot or the mini-slot, and transmitting, to the terminal, control information selecting one of the symbol allocation data included in the time interval resource configuration information.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 16, 2021
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-Jin Choi
  • Patent number: 10925079
    Abstract: The present embodiments provide a method for scheduling an uplink signal and a downlink data channel in an NR, wherein one embodiment is a method by which a terminal schedules an uplink signal and a downlink data channel, the method comprising the steps of: receiving, from a base station, an uplink signal and downlink data channel scheduling information; and scheduling the uplink signal and the downlink data channel on the basis of the scheduling information.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: February 16, 2021
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10911942
    Abstract: The provided is a method and apparatus for adding a WLAN carrier to an E-UTRAN carrier at a radio access network (RAN) level to transmit and receive data. The method may include: receiving, from a base station, additional configuration indication information for additionally configuring a WLAN carrier; additionally configuring the WLAN carrier on the basis of the additional configuration indicating information; and attempting WLAN associating through the WLAN carrier using UE identification information, wherein a WLAN end transmits confirmation information for the WLAN association of the UE to the base station.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: February 2, 2021
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-jin Choi
  • Patent number: 10897720
    Abstract: Provided is a method for transmitting and receiving downlink pre-emption indication data in a next generation/5G wireless access network. The method for a terminal for receiving downlink pre-emption indication data may include: receiving monitoring configuration data for downlink pre-emption indication data from a base station; and, on the basis of the monitoring configuration data, monitoring the downlink pre-emption indication data, wherein the monitoring configuration data comprises data for whether to monitor the downlink pre-emption indication data.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: January 19, 2021
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-Jin Choi