Patents by Inventor Jae-Hyun Ahn

Jae-Hyun Ahn 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: 10952165
    Abstract: This specification relates to an apparatus and method for performing random access in a wireless communication system. This specification discloses a mobile station, including a reception unit for receiving TAG configuration information on which at least one serving cell configured in the mobile station is classified as a Timing Alignment Group (TAG) from a base station and a transmission unit for transmitting a random access preamble to the base station on one representative serving cell within the TAG. In accordance with this specification, a procedure of obtaining a TAV for a serving cell in order to secure and maintain uplink timing synchronization becomes clear, the time taken to obtain uplink synchronization for a serving cell may be reduced, and overhead due to excessive random access attempts may be reduced by obtaining a TAV for a plurality of serving cells through one random access procedure.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 16, 2021
    Assignee: Apple Inc.
    Inventors: Ki Bum Kwon, Myung Cheul Jung, Jae Hyun Ahn
  • Patent number: 10945305
    Abstract: A method and an apparatus for controlling in-device coexistence interference (IDC) in a wireless communication system are provided. The present invention comprises transmitting IDC indication information including an unusable frequency band that is a frequency band in which performing communication is difficult because of IDC interference to a Base Station (BS), receiving Radio Resource Control (RRC) connection reconfiguration including IDC Discontinuous Reception (DRX) configuration reconfiguring DRX relating the unusable frequency band based on the IDC indication information from the BS and performing autonomously denial of Industrial Scientific Medical (ISM) transmission in the unusable frequency band by reconfiguring DRX based on the IDC DRX configuration.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 9, 2021
    Assignee: PANTECH CORPORATION
    Inventors: Jae Hyun Ahn, Myung Cheul Jung, Kang Suk Huh, Ki Bum Kwon
  • Patent number: 10945217
    Abstract: The present invention relates to an apparatus and method for controlling uplink transmission power in a multiple element carrier wave system. The method for controlling uplink transmission power by a terminal in a multiple element carrier wave system includes the steps of: generating an uplink signal to be transmitted in a first serving cell; receiving, from a base station, random access start information for commanding the start of a random access procedure for a second serving cell; calculating the estimated surplus power from first transmission power scheduled for an uplink signal transmission, and second transmission power scheduled for a transmission of a PRACH to which a random access preamble is mapped; and when the estimated surplus power is smaller than a threshold power, adjusting the first transmission power or the second transmission power on the basis of power allocation priority.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: March 9, 2021
    Assignee: PANTECH CORPORATION
    Inventors: Ki Bum Kwon, Myung Cheul Jung, Jae Hyun Ahn
  • Patent number: 10925830
    Abstract: The present invention provides a preparation for attaching to teeth or tooth peripheries. The preparation for attaching to teeth or tooth peripheries of the present invention can give high adhesive force to the desired site despite interproximal space or curves of teeth. It is easy to hand while controlling drug release.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: February 23, 2021
    Inventors: Ji-Young Kim, Jae-Hyun Ahn, In-Ho Lee
  • Patent number: 10917020
    Abstract: A multi output DC/DC converter includes a transformer having a primary side winding connected to an input side and a secondary side winding connected to an output side; a rectifying diode for rectifying an output of the secondary side winding; an output inductor having a first end connected to the rectifying diode; and a first output switching element and a second output switching element each having first ends connected to a second end of the output inductor, where a second end of the first output switching element and a second end of the second output switching element become first and second output stages outputting different voltages, respectively.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: February 9, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Inha University Research and Business Foundation
    Inventors: Jae Hyuk Choi, Byeong Seob Song, Sam Gyun Kim, Jae Kuk Kim, Bom Seok Lee, Jae Hyun Ahn
  • Publication number: 20210030633
    Abstract: The present disclosure provides a pair of tooth-attachable patches for upper teeth and lower teeth, each of the patches including: a drug layer to be attached to teeth; and a backing layer laminated on the drug layer, wherein the heights of the patches for upper teeth and lower teeth are shorter than the crown lengths of maxillary and mandibular central incisors, respectively. The tooth-attachable patches of the present disclosure are prevented from being in contact with the incisal surface of teeth, thereby reducing foreign body sensation while the patches are attached to the teeth.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 4, 2021
    Applicant: LG Household & Health Care Ltd.
    Inventors: Ji-Young Kim, Jae-Hyun Ahn, Seong-Eun Bang
  • Patent number: 10911972
    Abstract: The present invention relates to an apparatus and a method for performing measurement reporting considering in-device coexistence interference. The present invention provide a user equipment transmitting a measurement report in a wireless communication system, comprising an interference detection unit, an assistant information generation unit, a measurement controller and a transmitter. According to the present invention, a measurement procedure can be clearly defined in an interference delicate band where in-device coexistence interference occurs and scheduling restrictions on an eNodeB due to measurement reporting about an interference delicate band can be reduced.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 2, 2021
    Assignee: PANTECH CORPORATION
    Inventors: Jae Hyun Ahn, Ki Bum Kwon, Myung Cheul Jung
  • Patent number: 10880790
    Abstract: Disclosed are a method and a device for transmitting data in a wireless communication system supporting dual connectivity. The method for transmitting data in a wireless communication system supporting dual connectivity comprises the steps of: transmitting channel state information between a small base station and a terminal to a macro base station; receiving a radio resource control (RRC) connection reconfiguration message from the macro base station; releasing a connection with the small base station on the basis of the RRC connection reconfiguration message; and transmitting, to the macro base station, a PDCP state report including information on a sequence number of a packet data convergence protocol (PDCP) service data unit (SDU) which has not been received.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 29, 2020
    Assignee: PANTECH CORPORATION
    Inventors: Kang Suk Huh, Ki Bum Kwon, Jae Hyun Ahn, Myung Cheul Jung
  • Patent number: 10863573
    Abstract: The present invention provides a method for user equipment receiving multi-flow data with respect to one evolved packet system (EPS) bearer through a macro base station (macro eNB) and a small base station (small eNB) in a wireless communication system supporting dual connectivity. The method comprises the steps of: a packet data convergence protocol (PDCP) entity of the user equipment receiving PDCP packet data units (PDU) through the macro base station and the small base station from a PDCP entity of the macro base station; obtaining PDCP service data units (SDU) corresponding to PDCP PDUs; and receiving from the macro base station information related to a sequence timer for the PDCP SDUs through a radio resource control (RRC) message, wherein the PDCP SDUs are indicated by a predefined PDCP sequence number (SN).
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: December 8, 2020
    Assignee: PANTECH CORPORATION
    Inventors: Myung Cheul Jung, Kang Suk Huh, Jae Hyun Ahn, Ki Bum Kwon
  • Publication number: 20200382009
    Abstract: A multi output DC/DC converter includes a transformer having a primary side winding connected to an input side and a secondary side winding connected to an output side; a rectifying diode for rectifying an output of the secondary side winding; an output inductor having a first end connected to the rectifying diode; and a first output switching element and a second output switching element each having first ends connected to a second end of the output inductor, where a second end of the first output switching element and a second end of the second output switching element become first and second output stages outputting different voltages, respectively.
    Type: Application
    Filed: November 6, 2019
    Publication date: December 3, 2020
    Inventors: Jae Hyuk Choi, Byeong Seob Song, Sam Gyun Kim, Jae Kuk Kim, Bom Seok Lee, Jae Hyun Ahn
  • Publication number: 20200306147
    Abstract: The present invention provides a patch for attaching to teeth or a surrounding part of teeth, and the patch can be easily removed by tooth brushing alone.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: LG Household & Health Care Ltd.
    Inventors: Jong-Hoon Kim, Jae-Hyun Ahn, Kwang-Ho Oh, In-Ho Lee, Woo-Sun Shim
  • Patent number: 10758469
    Abstract: The present invention relates to a composition that acts prior to the action of a tooth whitening composition or tooth whitening patch, the composition containing an oral cavity stimulation alleviating component able to reduce stimulation by the tooth whitening composition or patch. The present invention also relates to a tooth whitening kit whereby oral cavity stimulation is alleviated. The composition that acts prior to the action of a tooth whitening composition or patch of the present invention provides an outstanding tooth whitening effect while alleviating pain by mitigating intra-oral stimulation brought about by the rapid action of a tooth whitening component due to a tooth whitening component active agent.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: September 1, 2020
    Assignee: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Jong-Hoon Kim, Jae-Hyun Ahn, Ji-Hye Kim, In-Ho Lee, Seong-Eun Bang
  • Patent number: 10722433
    Abstract: The present invention provides a patch for attaching to teeth or a surrounding part of teeth, and the patch can be easily removed by tooth brushing alone.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 28, 2020
    Assignee: LG Household & Health Care Ltd.
    Inventors: Jong-Hoon Kim, Jae-Hyun Ahn, Kwang-Ho Oh, In-Ho Lee, Woo-Sun Shim
  • Publication number: 20200221387
    Abstract: The present invention relates to an apparatus and method for controlling uplink transmission power in a multiple element carrier wave system. The method for controlling uplink transmission power by a terminal in a multiple element carrier wave system includes the steps of: generating an uplink signal to be transmitted in a first serving cell; receiving, from a base station, random access start information for commanding the start of a random access procedure for a second serving cell; calculating the estimated surplus power from first transmission power scheduled for an uplink signal transmission, and second transmission power scheduled for a transmission of a PRACH to which a random access preamble is mapped; and when the estimated surplus power is smaller than a threshold power, adjusting the first transmission power or the second transmission power on the basis of power allocation priority.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: Ki Bum KWON, Myung Cheul JUNG, Jae Hyun AHN
  • Patent number: 10701711
    Abstract: The present invention provides an apparatus and a method for controlling coexistence interference within a device in a wireless communication system. The method discloses the following steps: performing triggering, in which a transmission, which is generated in a terminal, in a first frequency band of a first network system requests controlling of interference on a reception, which is generated in the terminal, in a second frequency band of a second network system; transmitting to a base station support information including information on a time section that can or cannot be used by the first network system of the second network system, due to the interference; and receiving from the base station reply information for accepting or denying interference control as a reply to the support information.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 30, 2020
    Assignee: CORANCI, LLC
    Inventors: Jae Hyun Ahn, Ki Bum Kwon, Myung Cheul Jung
  • Publication number: 20200205103
    Abstract: A user equipment (UE) of re-organizing a timing advance group (TAG) is provided. The UE includes: a receiving unit for receiving, from a serving base station, secondary serving cell (SCell) configuration information which includes a first field and a second field, the first field including an ScellIndex of an SCell to indicate a removal of the SCell, the second field including at least one of the ScellIndex to indicate an addition of the SCell and a TAG ID indicating a TAG of the SCell, and a radio resource control (RRC) processing unit for performing the addition of the SCell after performing the removal of the SCell from one or more SCells configured in the UE, and for reorganizing the TAG by including the SCell in the TAG.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Ki Bum KWON, Jae Hyun Ahn, Kang Suk Huh
  • Publication number: 20200196262
    Abstract: This specification relates to an apparatus and method for performing random access in a wireless communication system. This specification discloses a mobile station, including a reception unit for receiving TAG configuration information on which at least one serving cell configured in the mobile station is classified as a Timing Alignment Group (TAG) from a base station and a transmission unit for transmitting a random access preamble to the base station on one representative serving cell within the TAG. In accordance with this specification, a procedure of obtaining a TAV for a serving cell in order to secure and maintain uplink timing synchronization becomes clear, the time taken to obtain uplink synchronization for a serving cell may be reduced, and overhead due to excessive random access attempts may be reduced by obtaining a TAV for a plurality of serving cells through one random access procedure.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Inventors: Ki Bum Kwon, Myung Cheul Jung, Jae Hyun Ahn
  • Publication number: 20200153256
    Abstract: Various embodiments of the present invention relate to an electronic device and a charging control method therefor. The electronic device may comprise: a connection terminal for performing wired communication with an external electronic device; and at least one processor functionally connected to the connection terminal, wherein the at least one processor detects connection of a charging device through the connection terminal, receives state information of at least one adjacent terminal located next to a power terminal of the connection terminal, and controls charging power to be supplied thereto through the charging device, on the basis of the received state information of the adjacent terminal. In addition, various other embodiments are possible.
    Type: Application
    Filed: May 15, 2018
    Publication date: May 14, 2020
    Inventors: Young-Jin PARK, Sung-Ha PARK, Joon-Yung PARK, Jung-Oh SUNG, Dong-Rak SHIN, Jae-Hyun AHN, Sung-Eun LEE, Wooin CHOI, Insun CHOI, Jongik WON
  • Patent number: 10652830
    Abstract: The present invention provides a method and an apparatus for establishing maximum transmission power. The present invention comprises: receiving an RRC message including a user equipment-specific maximum transmission power value established by a first base station or a second base station; reestablishing maximum output power based on the user equipment specific maximum transmission power value; and simultaneously transmitting an uplink to the first base station or the second base station within the reestablished maximum output power. The user equipment-specific maximum transmission power value is established for each of the first base station and the second base station, and the sum of the user equipment-specific maximum transmission power value for the first base station and the user equipment-specific maximum transmission power value for the second base station is less than or equal to a maximum output power value for the user equipment.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 12, 2020
    Assignee: Pantech Inc.
    Inventors: Myung Cheul Jung, Jae Hyun Ahn, Ki Bum Kwon, Kang Suk Huh
  • Publication number: 20200112901
    Abstract: The present disclosure relates to a handover apparatus and method capable of voiding in-device coexistence interference. In order to prevent handover failure due to in-device coexistence interference, an SeNB provides TDM information (including TDM pattern s information or TDM activation information) to a UE during a handover procedure, and the UE performs the handover with a TeNB according to the provided TDM information. By the disclosure, the UE can perform ISM signal transmission/reception and LTE signal transmission/reception with the TeNB in a discriminated manner according to a particular TDM pattern, so as to prevent handover failure due to the in-UE coexistence interference.
    Type: Application
    Filed: December 8, 2019
    Publication date: April 9, 2020
    Inventors: Jae Hyun Ahn, Kibum Kwon, Myungcheul Jung