Patents by Inventor Sang-Gook Kim

Sang-Gook 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: 20240146186
    Abstract: The present disclosure provides an active compensation device for actively compensating for noise generated in a common mode in each of at least two high-current paths. The active compensation device includes a sensing unit configured to generate an output signal corresponding to a common-mode noise signal on the high-current path, an integrated circuit (IC) unit including an amplification unit configured to output an amplified signal obtained by amplifying the output signal, and a digital circuit unit configured to output noise data into which the output signal is digitally converted, and a compensation unit configured to draw a compensation current out of the high-current path or generate a compensation voltage on the high-current path, based on the amplified signal. The noise data is provided to an external device.
    Type: Application
    Filed: June 3, 2022
    Publication date: May 2, 2024
    Inventors: Jin Gook KIM, Sang Yeong JEONG
  • Patent number: 11949393
    Abstract: This application relates to an independent active electromagnetic interference filter module. In one aspect, the filter module includes a first element group including a noise sensing unit provided to sense electromagnetic noise, and a second element group including a compensating unit provided to generate a compensation signal for the electromagnetic noise. The first group and the second group may be respectively mounted on different substrates. According to some embodiments, the filter module can reduce a volume of each element constituting an electromagnetic interference filter module, implement a single modularization of a compact structure. The filter module can also improve electromagnetic interference noise reduction performance and a manufacturing method thereof.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: April 2, 2024
    Assignees: EM Coretech Co., Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Sang Yeong Jeong, Jin Gook Kim
  • Publication number: 20230174112
    Abstract: An aspect of the present invention relates to a method in which an autonomous vehicle generates a virtual lane on the basis of location parameters of road facilities, and travels along the generated virtual lane. According to an embodiment of the present invention, a method of operating an autonomous vehicle configured to autonomously travel along a virtual lane includes: transmitting a request signal through a wireless network; receiving location parameters of nearby road facilities from the road facilities in response to the request signal; generating a virtual lane on the basis of the received location parameters; and autonomously traveling along the generated virtual lane.
    Type: Application
    Filed: June 24, 2019
    Publication date: June 8, 2023
    Applicant: LG ELECTRONICS INC.
    Inventor: Sang Gook KIM
  • Patent number: 11076446
    Abstract: The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method comprising: receiving a plurality of first battery status information from a plurality of Relay UEs, wherein each first battery status information includes an estimated time length of residual battery life of a respective Relay UE; if a congestion is recognized, transmitting a first request signal for requesting additional information about battery status to the plurality of Relay UEs; as a response to the first request signal, receiving a plurality of second battery status information from the plurality of Relay UEs, wherein each second battery status information includes a charging status of a respective Relay UE; and selecting one of the plurality of Relay UEs based on the first and second battery status information, and an apparatus therefore.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: July 27, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Patent number: 11012006
    Abstract: Described embodiments provide a Micro-Electro-Mechanical System (MEMS) vibration energy harvester. The energy harvester includes a buckled multi-layer beam that includes a plurality of stacked layers. The plurality of stacked layers includes at least one piezoelectric layer. Each one of the plurality of stacked layers has a determined stress level and a determined thickness. The determined stress level includes at least a compressive stress. The plurality of stacked layers achieves a desired total stress level of the beam to achieve substantial deformation of the beam in at least one direction when a proof mass is added to the beam. In response to applied external vibrations having a vibration frequency and an acceleration amplitude, the beam deflects and deforms to provide strain to the at least one piezoelectric layer, thereby generating an electrical charge to provide a continuous power output in response to the external vibrations.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: May 18, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Ruize Xu, Sang-Gook Kim
  • Patent number: 10999819
    Abstract: The present invention is directed to a method and an apparatus for use in a cellular communication system. Specifically, the present invention is directed to a method comprising: transmitting, to one of WLAN Terminations (WTs), a first indication to wake up WLAN module of the UE; if no response for the first indication is received from the one of WTs during a first time duration, transmitting, to all of the WTs, a second indication to wake up the WLAN module of the UE; and if no response for the second indication is received from any of the WTs during a second time duration, transmitting, to a mobility management entity (MME), a third indication related with absence of the UE, and an apparatus therefore.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: May 4, 2021
    Assignee: LG Electronics Inc.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Patent number: 10973276
    Abstract: The present disclosure is related to energy-harvesting articles of footwear, and associated components and methods. In some embodiments, an energy-harvesting article of footwear comprises a compressible bladder, a pneumatic motor fluidically connected to the compressible bladder, and an electric generator operatively coupled to the pneumatic motor. In some embodiments, energy is harvested by compressing a compressible bladder and flowing fluid from the compressible bladder through a pneumatic motor to generate power. Certain embodiments relate to pneumatic motor designs, and/or to methods of flowing fluid input through pneumatic motors.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: April 13, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Haluk Akay, Ruize Xu, Kelsey Seto, Sang-Gook Kim
  • Patent number: 10952121
    Abstract: The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method comprising: transmitting, to a plurality of Relay UEs, a first signal including an amount of data to send; receiving, from the plurality of Relay UEs, a plurality of second signals, each second signal including (a score of a respective Relay UE, a number N of Remote UEs attempting to access to the respective Relay UE) pair; and selecting one of the plurality of Relay UEs based on the received (score, N) pairs, wherein the score of respective Rely UE is determined based on at least (i) the amount of data to send, and (ii) a power availability in the respective Rely UE, and an apparatus therefore.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 16, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Publication number: 20200107397
    Abstract: The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method comprising: receiving a plurality of first battery status information from a plurality of Relay UEs, wherein each first battery status information includes an estimated time length of residual battery life of a respective Relay UE; if a congestion is recognized, transmitting a first request signal for requesting additional information about battery status to the plurality of Relay UEs; as a response to the first request signal, receiving a plurality of second battery status information from the plurality of Relay UEs, wherein each second battery status information includes a charging status of a respective Relay UE; and selecting one of the plurality of Relay UEs based on the first and second battery status information, and an apparatus therefore.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 2, 2020
    Applicant: LG ELECTRONICS INC.
    Inventors: Ki-Dong LEE, Sang Gook KIM
  • Publication number: 20200100212
    Abstract: The present invention is directed to a method and an apparatus for use in a cellular communication system. Specifically, the present invention is directed to a method comprising: transmitting, to one of WLAN Terminations (WTs), a first indication to wake up WLAN module of the UE; if no response for the first indication is received from the one of WTs during a first time duration, transmitting, to all of the WTs, a second indication to wake up the WLAN module of the UE; and if no response for the second indication is received from any of the WTs during a second time duration, transmitting, to a mobility management entity (MME), a third indication related with absence of the UE, and an apparatus therefore.
    Type: Application
    Filed: April 20, 2018
    Publication date: March 26, 2020
    Inventors: Ki-Dong LEE, Sang Gook KIM
  • Publication number: 20200059848
    Abstract: The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method comprising: transmitting, to a plurality of Relay UEs, a first signal including an amount of data to send; receiving, from the plurality of Relay UEs, a plurality of second signals, each second signal including (a score of a respective Relay UE, a number N of Remote UEs attempting to access to the respective Relay UE) pair; and selecting one of the plurality of Relay UEs based on the received (score, N) pairs, wherein the score of respective Rely UE is determined based on at least (i) the amount of data to send, and (ii) a power availability in the respective Rely UE, and an apparatus therefore.
    Type: Application
    Filed: April 20, 2018
    Publication date: February 20, 2020
    Applicant: LG ELECTRONICS INC.
    Inventors: Ki-Dong LEE, Sang Gook KIM
  • Patent number: 10433126
    Abstract: The present invention provides methods for supporting a public transportation by using a Vehicle to Everything (V2X) at a Passenger Control Center (PCC) in a wireless access system. One of the methods comprising steps of tracking taxis in a coverage of the PCC in order to support the public transportation; transmitting a first Vehicle to Infrastructure (V2I) or Vehicle to Network (V2N) message triggering a public transportation service to the tracked taxis; receiving a second V2I or V2N message from one or more taxis including location information of each of the taxis; collecting traffic situation information on an area including the PCC; deciding candidate taxis based on the location information and the traffic situation information; and transmitting a third V2I or V2N message indicating pick up passengers at a specific taxi stand to the candidate taxis, wherein each of the taxis is a vehicle user equipment (VUE).
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: October 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Patent number: 10321273
    Abstract: The present invention provides methods and apparatus for transmitting and receiving warning messages by using Vehicle to Everything (V2X) services. One of embodiments of the present invention is performed by a vehicle user equipment (VUE) and comprising steps of receiving a first Message transmission Guideline Package (MGP) message including geographical coordination information related with an MGP area and a value tag indicating time information for updating the MGP message; checking the value tag is changed or not; and transmitting a first warning message based on the first MGP message when the value tag is not expired; or transmitting a second warning message based on a second MGP message when the value tag is expired, wherein at least a transmission frequency or a transmission power for the second warning message are determined base on the second MGP message, and wherein the MGP area represents where MGP profiles are the same.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Patent number: 10285021
    Abstract: The present invention relates to methods and apparatus for transmitting or receiving a Multimedia Broadcast Supplement for Public warning system (MBSP) message. One of the embodiments of the present invention, a method for receiving a multimedia broadcast supplement for public warning system (MBSP) message, the method performed by a user equipment (UE) and comprising: receiving a paging message including an MBSP indication field indicating an MBSP notification will be transmitted; receiving a system information block including the MBSP notification including an MBSP related information for allocating a resource for receiving the MBSP message; and receiving the MBSP message through the resource, wherein the MBSP message includes public safety multimedia information for warning a user of the UE.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: May 7, 2019
    Assignee: LG Electronics Inc.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Patent number: 10278066
    Abstract: The present invention provides methods and apparatus for displaying identifications of lost device for anti-theft operation. One of methods for displaying identifications of a mobile device for anti-theft operation in a wireless access system, the method comprises steps of receiving a paging message including a show lock screen command indicating whether a screen-lock is requested and a displaying identification indication requesting a display of device identification of the mobile device on a screen of the mobile device; and displaying the device identification on the locked screen according to the show lock screen command and the displaying identification indication.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 30, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki-Dong Lee, Sang Gook Kim, Jun Kyung Park, Daniel Jaeyong Park
  • Patent number: 10187766
    Abstract: The present invention provides methods and apparatus for gathering location information of a vehicular user equipment (VUE). In one aspect of the present invention, a method for gathering location information in a wireless access system supporting vehicle to everything (V2X) service, the method performed by a vehicular user equipment (VUE) and comprising steps of receiving a Tracking Service Request message including a V2X tracking service indication field indicating tracking service is triggered or not and an identifier of the VUE; and transmitting a Tracking Service Response message including location information of the VUE in response to the Tracking Service Request message, wherein the location information includes a location information field indicating a location coordinate of the VUE, a time field indicating current time and time zone information corresponding to the location information field, and a fuel level field indicating fuel level of the VUE.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 22, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki-Dong Lee, Sang Gook Kim
  • Publication number: 20190020986
    Abstract: The present invention provides methods for supporting a public transportation by using a Vehicle to Everything (V2X) at a Passenger Control Center (PCC) in a wireless access system. One of the methods comprising steps of tracking taxis in a coverage of the PCC in order to support the public transportation; transmitting a first Vehicle to Infrastructure (V2I) or Vehicle to Network (V2N) message triggering a public transportation service to the tracked taxis; receiving a second V2I or V2N message from one or more taxis including location information of each of the taxis; collecting traffic situation information on an area including the PCC; deciding candidate taxis based on the location information and the traffic situation information; and transmitting a third V2I or V2N message indicating pick up passengers at a specific taxi stand to the candidate taxis, wherein each of the taxis is a vehicle user equipment (VUE).
    Type: Application
    Filed: August 3, 2016
    Publication date: January 17, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Ki-Dong LEE, Sang Gook KIM
  • Publication number: 20180316287
    Abstract: Described embodiments provide a Micro-Electro-Mechanical System (MEMS) vibration energy harvester. The energy harvester includes a buckled multi-layer beam that includes a plurality of stacked layers. The plurality of stacked layers includes at least one piezoelectric layer. Each one of the plurality of stacked layers has a determined stress level and a determined thickness. The determined stress level includes at least a compressive stress. The plurality of stacked layers achieves a desired total stress level of the beam to achieve substantial deformation of the beam in at least one direction when a proof mass is added to the beam. In response to applied external vibrations having a vibration frequency and an acceleration amplitude, the beam deflects and deforms to provide strain to the at least one piezoelectric layer, thereby generating an electrical charge to provide a continuous power output in response to the external vibrations.
    Type: Application
    Filed: October 19, 2016
    Publication date: November 1, 2018
    Applicant: Massachusetts Institute of Technology
    Inventors: Ruize Xu, Sang-Gook Kim
  • Publication number: 20180295474
    Abstract: The present invention provides methods and apparatus for transmitting and receiving warning messages by using Vehicle to Everything (V2X) services. One of embodiments of the present invention is performed by a vehicle user equipment (VUE) and comprising steps of receiving a first Message transmission Guideline Package (MGP) message including geographical coordination information related with an MGP area and a value tag indicating time information for updating the MGP message; checking the value tag is changed or not; and transmitting a first warning message based on the first MGP message when the value tag is not expired; or transmitting a second warning message based on a second MGP message when the value tag is expired, wherein at least a transmission frequency or a transmission power for the second warning message are determined base on the second MGP message, and wherein the MGP area represents where MGP profiles are the same.
    Type: Application
    Filed: October 6, 2016
    Publication date: October 11, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Ki-Dong LEE, Sang Gook KIM
  • Publication number: 20180206586
    Abstract: The present disclosure is related to energy-harvesting articles of footwear, and associated components and methods. In some embodiments, an energy-harvesting article of footwear comprises a compressible bladder, a pneumatic motor fluidically connected to the compressible bladder, and an electric generator operatively coupled to the pneumatic motor. In some embodiments, energy is harvested by compressing a compressible bladder and flowing fluid from the compressible bladder through a pneumatic motor to generate power. Certain embodiments relate to pneumatic motor designs, and/or to methods of flowing fluid input through pneumatic motors.
    Type: Application
    Filed: October 23, 2017
    Publication date: July 26, 2018
    Applicant: Massachusetts Institute of Technology
    Inventors: Haluk Akay, Ruize Xu, Kelsey Seto, Sang-Gook Kim