Patents by Inventor Kwang Jae Lim

Kwang Jae Lim 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: 12151578
    Abstract: A device for charging an electric vehicle includes a charging inlet for receiving charging information and power from electric vehicle supply equipment (EVSE); a control module for determining a charging mode on the basis of the charging information, and outputting a control signal according to the determined charging mode; and a charging unit for charging a battery of the electric vehicle according to the control signal from the control module.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: November 26, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Kwang Seob Shin, Do Hyeong Kim, Hyoung Dong Kim, Myoung Kyu Rhee, Myung Keun Lim, Soo Bum Cho, Jeong Jae Jo, Yong Hyun Han
  • Publication number: 20240337760
    Abstract: A method of a terminal may comprise: receiving satellite navigation augmentation information including phase offset correction information for a pair of two carriers among satellite navigation signals transmitted by each of satellites of a global navigation satellite system through multiple carriers; receiving satellite navigation signals from each of the satellites through the multiple carriers; calculating parameters for estimating a location of the terminal using the received satellite navigation signals; correcting the parameters based on the phase offset correction information for the pair of two carriers; and estimating the location of the terminal using the corrected parameters.
    Type: Application
    Filed: September 14, 2023
    Publication date: October 10, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Kwang Jae LIM
  • Patent number: 11492109
    Abstract: Disclosed is a method of determining location information of a signal source. A method of determining location information of a signal source by using an unmanned aerial vehicle according to an embodiment of the present disclosure includes determining, at a first location, first location information and first posture information of the unmanned aerial vehicle provided with a linear array antenna; determining, at the first location, a first measurement azimuth between the signal source and the linear array antenna; determining, at least one second location, at least one second location information and at least one second posture information of the unmanned aerial vehicle having the linear array antenna; determining, at the at least one second location, at least one second measurement azimuth between the signal source and the linear array antenna; and predicting the location information of the signal source using the information described above.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 8, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Kwang Jae Lim
  • Publication number: 20220150971
    Abstract: Provided is a method for transmitting, by a transmitter, a first data having periodicity through a channel of an unlicensed band: The transmitter adjusts at least one of transmission timing of the first data and clear channel assessment (CCA) timing for the channel to occupy the channel. The transmitter determines whether the channel may be occupied by performing a CCA on the channel at the CCA timing. The transmitter transmits the first data through the channel at the transmission timing of the first data, when it is determined that the channel may be occupied.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Eunkyung KIM, Jae Sun CHA, Chanho YOON, Seung-Kwon BAEK, Jae Joon PARK, Kwang Jae LIM, Sung Cheol CHANG
  • Patent number: 11313942
    Abstract: Disclosed is a method of identifying location information of a signal source, the method including: identifying, at a first position, first position information and first posture information of an UAV equipped with a linear array antenna; identifying, after identifying a first measured azimuth between the signal source and the antenna at the first position, a first corrected azimuth; identifying, at at least one second position, at least one piece of second position information and at least one of second posture information of the UAV; identifying, after identifying at least one second measured azimuth between the signal source and the antenna at the at least one second position, at least one second corrected azimuth; and estimating the location information of the signal source by using the first position information, the first posture information, the first corrected azimuth, the second position information, the second posture information, and the second corrected azimuth.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: April 26, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Kwang Jae Lim
  • Patent number: 11272541
    Abstract: Provided is a method for transmitting, by a transmitter, a first data having periodicity through a channel of an unlicensed band: The transmitter adjusts at least one of transmission timing of the first data and clear channel assessment (CCA) timing for the channel to occupy the channel. The transmitter determines whether the channel may be occupied by performing a CCA on the channel at the CCA timing. The transmitter transmits the first data through the channel at the transmission timing of the first data, when it is determined that the channel may be occupied.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: March 8, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Eunkyung Kim, Jae Sun Cha, Chanho Yoon, Seung-Kwon Baek, Jae Joon Park, Kwang Jae Lim, Sung Cheol Chang
  • Patent number: 11089624
    Abstract: A method and an apparatus for allocating uplink resources includes transmitting an uplink grant (UL Grant) for an unlicensed component carrier (UCC) to a plurality of terminals, wherein the UL Grant for a first terminal among the plurality of terminals includes a resource allocation information in which a transmission timing of the uplink data of a second terminal among the plurality of terminals is considered.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: August 10, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Eunkyung Kim, Chanho Yoon, Seung-Kwon Baek, Wooram Shin, Kwang Jae Lim, Young Jo Ko
  • Patent number: 10880899
    Abstract: Disclosed is a method and apparatus for selecting a channel for UAV control and non-payload communication on the basis of a channel interference analysis. According to an embodiment of the present disclosure, provided is a method of selecting a UAV control channel on the basis of an interference analysis, the method including: performing, by a user device, the interference analysis; selecting, by the user device, a channel on the basis of a result of the interference analysis; requesting, by the user device, a central management device to approve the selected channel; and performing, by the user device, communication with a UAV on the channel approved by the central management device.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: December 29, 2020
    Assignee: Electronics and Telecommunications Research institute
    Inventors: Hee Wook Kim, Kwang Jae Lim
  • Publication number: 20200278418
    Abstract: Disclosed is a method of identifying location information of a signal source, the method including: identifying, at a first position, first position information and first posture information of an UAV equipped with a linear array antenna; identifying, after identifying a first measured azimuth between the signal source and the antenna at the first position, a first corrected azimuth; identifying, at at least one second position, at least one piece of second position information and at least one of second posture information of the UAV; identifying, after identifying at least one second measured azimuth between the signal source and the antenna at the at least one second position, at least one second corrected azimuth; and estimating the location information of the signal source by using the first position information, the first posture information, the first corrected azimuth, the second position information, the second posture information, and the second corrected azimuth.
    Type: Application
    Filed: January 2, 2020
    Publication date: September 3, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Kwang Jae LIM
  • Patent number: 10637701
    Abstract: A method and an apparatus for transmitting the physical uplink control channel including an uplink control channel expressed by product of a uplink control information and a sequence and demodulation reference signal expressed by a sequence having different cyclic shift values through a short resource block are provided.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 28, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Taegyun Noh, Kwang Jae Lim, Chul Sik Yoon, Yu Ro Lee, Sung Cheol Chang
  • Patent number: 10575312
    Abstract: Disclosed is a channel assignment method of a communication system for controlling an unmanned aerial vehicle (UAV), the method including receiving assignment data and an interference analysis criterion from a spectrum authority; performing an interference analysis and selecting a control and non-payload communication (CNPC) channel based on the assignment data and the interference analysis criterion; and requesting the spectrum authority for assigning the CNPC channel.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 25, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hee Wook Kim, Kwang Jae Lim, Tae Chul Hong
  • Patent number: 10560180
    Abstract: A ground radio station (GRS) apparatus and a radio station apparatus included in an unmanned aerial vehicle (UAV) are provided. The GRS apparatus may include an antenna configured to transmit and receive a radio frequency (RF) signal, an RF and/or intermediate frequency (IF) (RF/IF) chain configured to perform a conversion between the RF signal and a baseband signal, a baseband transceiving processor configured to transmit and receive the baseband signal, and a BB-IF interface configured to map the baseband signal to the RF/IF chain or the baseband transceiving processor.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: February 11, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang Jae Lim, Hee Wook Kim
  • Publication number: 20190389578
    Abstract: Disclosed is a method of determining location information of a signal source. A method of determining location information of a signal source by using an unmanned aerial vehicle according to an embodiment of the present disclosure includes determining, at a first location, first location information and first posture information of the unmanned aerial vehicle provided with a linear array antenna; determining, at the first location, a first measurement azimuth between the signal source and the linear array antenna; determining, at least one second location, at least one second location information and at least one second posture information of the unmanned aerial vehicle having the linear array antenna; determining, at the at least one second location, at least one second measurement azimuth between the signal source and the linear array antenna; and predicting the location information of the signal source using the information described above.
    Type: Application
    Filed: May 3, 2019
    Publication date: December 26, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Kwang Jae LIM
  • Publication number: 20190394804
    Abstract: Provided is a method for transmitting, by a transmitter, a first data having periodicity through a channel of an unlicensed band: The transmitter adjusts at least one of transmission timing of the first data and clear channel assessment (CCA) timing for the channel to occupy the channel. The transmitter determines whether the channel may be occupied by performing a CCA on the channel at the CCA timing. The transmitter transmits the first data through the channel at the transmission timing of the first data, when it is determined that the channel may be occupied.
    Type: Application
    Filed: August 9, 2019
    Publication date: December 26, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Eunkyung KIM, Jae Sun CHA, Chanho YOON, Seung-Kwon BAEK, Jae Joon PARK, Kwang Jae LIM, Sung Cheol CHANG
  • Publication number: 20190373628
    Abstract: A method and an apparatus for allocating uplink resources includes transmitting an uplink grant (UL Grant) for an unlicensed component carrier (UCC) to a plurality of terminals, wherein the UL Grant for a first terminal among the plurality of terminals includes a resource allocation information in which a transmission timing of the uplink data of a second terminal among the plurality of terminals is considered.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Eunkyung KIM, Chanho YOON, Seung-Kwon BAEK, Wooram SHIN, Kwang Jae LIM, Young Jo KO
  • Patent number: 10448420
    Abstract: A method and an apparatus for allocating uplink resources includes transmitting an uplink grant (UL Grant) for an unlicensed component carrier (UCC) to a plurality of terminals, wherein the UL Grant for a first terminal among the plurality of terminals includes a resource allocation information in which a transmission timing of the uplink data of a second terminal among the plurality of terminals is considered.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 15, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Eunkyung Kim, Chanho Yoon, Seung-Kwon Baek, Wooram Shin, Kwang Jae Lim, Young Jo Ko
  • Patent number: 10429836
    Abstract: A channel access method in an unmanned aerial vehicle (UAV) control and non-payload communication (CNPC) system is provided. The channel access method may include setting an uplink frequency and a downlink frequency to each of a ground station and an airborne radio station, and performing, by the ground station and the airborne radio station, an initial access using the uplink frequency or the downlink frequency.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 1, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Tae Chul Hong, Hee Wook Kim, Kwang Jae Lim
  • Patent number: 10419173
    Abstract: Disclosed herein are a method and an apparatus for transmitting an uplink signal. The method for transmitting an uplink signal includes: transmitting an uplink data in at least one symbol included in a short transmit time interval (sTTI) including 7 symbols or less; and transmitting a demodulation reference signal (DMRS) for the uplink data through an even-numbered subcarrier or an odd-numbered subcarrier in one symbol in which the uplink data is not transmitted, among the symbols included in the sTTI.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: September 17, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yu Ro Lee, Kwang Jae Lim, Sung Cheol Chang
  • Publication number: 20190230671
    Abstract: Disclosed is a method and apparatus for selecting a channel for UAV control and non-payload communication on the basis of a channel interference analysis. According to an embodiment of the present disclosure, provided is a method of selecting a UAV control channel on the basis of an interference analysis, the method including: performing, by a user device, the interference analysis; selecting, by the user device, a channel on the basis of a result of the interference analysis; requesting, by the user device, a central management device to approve the selected channel; and performing, by the user device, communication with a UAV on the channel approved by the central management device.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 25, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hee Wook KIM, Kwang Jae LIM
  • Patent number: 10333738
    Abstract: A base station defines a short TTI (transmission time interval) equal to the length of one subslot as the minimum unit of a time resource for data transmission in a subframe including a plurality of subslots, determines the RS type the terminal will use for transmission, among a plurality of RS types, based on the positions of RSs (reference signals) within the short TTI, and sends information on the RS type the terminal will use for transmission to the terminal.
    Type: Grant
    Filed: June 4, 2016
    Date of Patent: June 25, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yu Ro Lee, Kwang Jae Lim, Won-Ik Kim, Taegyun Noh, Sung Cheol Chang