Patents by Inventor Han Sol Seo

Han Sol Seo 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: 11178549
    Abstract: A method performed by an electronic apparatus to provide information associated with activation of a portable terminal according to various embodiments includes acquiring order information associated with the portable terminal, acquiring information associated with delivery of the portable terminal corresponding to the order information from a server, and, based on the order information and the information associated with the delivery of the portable terminal, providing the information associated with the activation of the portable terminal, and the information associated with the activation comprises information on whether the portable terminal has been shipped out.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: November 16, 2021
    Assignee: Coupang Corp.
    Inventors: Cho Rong Kim, Jung Hun Lee, Min Jung Lee, Han Sol Kim, Young Jin Kim, Chang Hyun Park, Sang Won Seo, Hye Jin Kim, So Yeon Son, Mi Seon Lim, Yoo Jin Yang, Yoo Jeong Jo
  • Patent number: 11004544
    Abstract: Disclosed is a method of providing biological data. The method includes the following steps performed by a data processing device: selecting a biological data set from a biological data pool; encrypting biological data included in the biological data set to produce encrypted biological data; transferring the encrypted biological data to a user; receiving a result of analysis on the encrypted biological data from the user; and transferring information on the encrypted biological data included in the result of the analysis to the user. The data processing device encrypts the biological data with a key determined according to a combination of biological data constituting the biological data set.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: May 11, 2021
    Assignees: MACROGEN, INC., PSOMAGEN, INC.
    Inventors: Joshua Sungwoo Yang, Jaekyung Chon, Ik Jung Choi, Hyun Min Park, Jieun Park, Jeongsun Seo, Changhoon Kim, Han Sol Seo, Jiwon Shin, In Hee Hwang, Seon Hye Sim, Chang Woo Cho, Nam Hee Kim, Hye Eun Lee, Kyuin Hwang
  • Publication number: 20210130812
    Abstract: Disclosed are a method for DNA extraction in a sample for next generation sequencing (NGS) and a method of constructing a NGS library using the extracted DNA. The method for DNA extraction includes: preparing a mixture by mixing a biological sample with a buffer; applying microwaves to the mixture; and recovering DNA. The method of constructing a NGS library includes: extracting DNA according to the method for DNA extraction; amplifying a target DNA using primers; and purifying the amplified product and subjecting the purified product to library pooling.
    Type: Application
    Filed: March 26, 2020
    Publication date: May 6, 2021
    Applicants: MACROGEN, INC., PSOMAGEN, INC.
    Inventors: JOSHUA SUNGWOO YANG, JAEKYUNG CHON, IK JUNG CHOI, HYUN MIN PARK, JIEUN PARK, JEONGSUN SEO, CHANGHOON KIM, JONG YEON SHIN, HAN SOL SEO, JIWON SHIN, IN HEE HWANG, SEON HYE SIM, CHANG WOO CHO, KYUIN HWANG, IN SEON KIM, HYUNG IL LEE, JUNG HYUN CHO
  • Publication number: 20210052770
    Abstract: The present invention relates to a composition for bone grafting, comprising nucleic acids, a bone graft material, and a cationic polymer, and a bone graft kit for manufacturing the same. The composition for bone grafting, of the present invention, has been confirmed to promote the formation of a cushioning force that can respond to physiological stress and the formation of new bones at grafted sites, and has been confirmed to improve bone grafting convenience, and thus is expected to be effectively usable in the treatment of bone diseases.
    Type: Application
    Filed: January 28, 2019
    Publication date: February 25, 2021
    Applicant: PHARMARESEARCH PRODUCTS CO., LTD.
    Inventors: Ik Soo KIM, Chul Ho SHIN, Min Hyeong PARK, Su Yeon LEE, Tae Gyun KIM, Sung Oh LEE, Han Sol SEO, Byoung Hwan KONG, Jeong Kuk LEE
  • Publication number: 20200303040
    Abstract: Disclosed is a method of providing biological data. The method includes the following steps performed by a data processing device: selecting a biological data set from a biological data pool; encrypting biological data included in the biological data set to produce encrypted biological data; transferring the encrypted biological data to a user; receiving a result of analysis on the encrypted biological data from the user; and transferring information on the encrypted biological data included in the result of the analysis to the user. The data processing device encrypts the biological data with a key determined according to a combination of biological data constituting the biological data set.
    Type: Application
    Filed: January 15, 2020
    Publication date: September 24, 2020
    Applicants: MACROGEN, INC., PSOMAGEN, INC.
    Inventors: JOSHUA SUNGWOO YANG, JAEKYUNG CHON, IK JUNG CHOI, HYUN MIN PARK, JIEUN PARK, JEONGSUN SEO, CHANGHOON KIM, HAN SOL SEO, JIWON SHIN, IN HEE HWANG, SEON HYE SIM, CHANG WOO CHO, NAM HEE KIM, HYE EUN LEE, KYUIN HWANG
  • Publication number: 20190081477
    Abstract: The present invention relates to an active filter and a power management system comprising the same and, more particularly, to an active filter capable of managing power using an active filter having a function of removing harmonics and transmitting and receiving data about power. An active filter according to an embodiment of the present invention, which is electrically connected to a load to reduce the harmonics of a power current, comprises: a control unit for acquiring data on the power consumed by the load and adjusting the power consumed by the load on the basis of the acquired data; and a communication unit for transmitting at least one of the acquired data and data on the adjusted power consumption.
    Type: Application
    Filed: October 4, 2016
    Publication date: March 14, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Han Sol SEO, Jong Hyun SHIN, Je Hyung CHO
  • Patent number: 10084368
    Abstract: A motor driving apparatus includes an AC-DC conversion unit configured to rectify an AC power supplied from an external AC power source, a DC link unit configured to stabilize a voltage rectified by the AC-DC conversion unit, and a DC-AC conversion unit configured to supply the AC power to a motor using the DC voltage from the DC link unit. The DC link unit may include one pair of film capacitors configured to remove a ripple of the rectified voltage, and the DC-AC conversion unit may include a 3-level inverter receiving the DC voltage from the one pair of film capacitors to supply the AC power to the motor.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: September 25, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je Hyung Cho, Sun Jin Kim, Han Sol Seo
  • Patent number: 9954475
    Abstract: A motor driving apparatus includes a rectifying circuit to rectify an AC power supplied from an external AC power source, one pair of film capacitors to output a DC voltage and a neutral point voltage by removing a ripple of a voltage rectified by the AC-DC conversion unit, a 3-level inverter to supply a driving current to a motor using the DC voltage applied from the DC link unit, and a control module to control the 3-level inverter. The control module includes a motor speed control module to control the rotation of the motor, a DC voltage control module to stabilize the DC voltage, a neutral point voltage control module to stabilize the neutral point voltage, and a stabilizing voltage limiting module to control the DC voltage control module and the neutral point voltage control module according to an output of the motor speed control module.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: April 24, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Je Hyung Cho, Seung-Ki Sul, Se Hwa Choe, Han Sol Seo
  • Patent number: 9941785
    Abstract: A power factor correction circuit and an electronic product including the same are disclosed. This technology configures a bridgeless circuit with no rectifier diode by using an additional switch, eliminating conduction loss due to the diode and reducing common mode EMI noise of the power factor correction circuit. A power factor correction circuit includes at least one inductor directly connected to an AC input stage, an output capacitor to smooth the output voltage, first switching elements to control current to store magnetic energy in the inductor, and a second switching element to maintain a substantially constant voltage between a ground voltage of an AC input stage and a ground voltage of an output stage.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 10, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Han Kim, Han Sol Seo, Bo Hyung Cho, Paul Jang, Sang Woo Kang
  • Patent number: 9853583
    Abstract: Disclosed herein are a motor driving apparatus and a controlling method thereof. The motor driving apparatus includes a motor having a rotor including a permanent magnet, and a stator, an inverter to supply a driving power to the motor, and a control unit to estimate a parameter using a startup estimation when a rotation speed of the rotor is less than a preset startup speed, to estimate the parameter using a driving estimation with compensating for a dead time when the rotation speed of the rotor is equal to or greater than the preset startup speed and a torque of the rotor is equal to or less than a preset driving torque, and to estimate the parameter using the driving estimation without the dead time compensation when the rotation speed of the rotor is equal to or greater than the preset startup speed and the torque of the rotor exceeds the preset driving torque.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 26, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jong-Hyun Shin, Jin Woong Kim, Han Sol Seo, Jung-Ik Ha
  • Patent number: 9819294
    Abstract: An inverter control apparatus and a control method thereof are provided. The inverter control apparatus and a control method thereof stably operate a three-phase motor using a capacitor having a small capacitance for a DC link. The inverter control apparatus includes a current sensor to sense an output current of the inverter, a voltage sensor to sense a DC-link voltage of the inverter, and a controller to generate an average of a periodically varying rotor based q-axis current boundary value based on the output current and the DC-link voltage to generate a current reference on the basis of the average of the rotor based q-axis current boundary value, and to drive a three-phase motor based on the current reference. Stabilized variable speed control of a motor by using a small-capacitance capacitor for a DC link of an inverter is performed and reliability of an inverter circuit improved.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: November 14, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Young Jae Park, Han Sol Seo, Bodrov Alexey, Seung Ki Sul, Hyun-Sam Jung, Seung-Jun Chee
  • Patent number: 9762119
    Abstract: The present disclosure relates generally to a switch driving circuit and power factor correction circuit having the same, and more particularly, to a technology to provide a negative offset using Zener diodes to prevent malfunctions in driving a switch. The switch driving circuit to operate a switch implemented with a Field Effect Transistor (FET) includes a first Zener diode connected to a control input end of the switch; a capacitor connected in parallel with the first Zener diode; and second and third Zener diodes for providing a negative offset to fix a voltage applied between the gate and source of the switch to a negative value.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: September 12, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Jin Han Kim, Han Sol Seo, Bo-Hyung Cho, Sang-Woo Kang, Paul Jang
  • Publication number: 20160285353
    Abstract: The present disclosure relates generally to a switch driving circuit and power factor correction circuit having the same, and more particularly, to a technology to provide a negative offset using Zener diodes to prevent malfunctions in driving a switch. The switch driving circuit to operate a switch implemented with a Field Effect Transistor (FET) includes a first Zener diode connected to a control input end of the switch; a capacitor connected in parallel with the first Zener diode; and second and third Zener diodes for providing a negative offset to fix a voltage applied between the gate and source of the switch to a negative value.
    Type: Application
    Filed: December 10, 2015
    Publication date: September 29, 2016
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Jin Han KIM, Han Sol SEO, Bo-Hyung CHO, Sang-Woo KANG, Paul JANG
  • Publication number: 20160268951
    Abstract: A motor driving apparatus includes an AC-DC conversion unit configured to rectify an AC power supplied from an external AC power source, a DC link unit configured to stabilize a voltage rectified by the AC-DC conversion unit, and a DC-AC conversion unit configured to supply the AC power to a motor using the DC voltage from the DC link unit. The DC link unit may include one pair of film capacitors configured to remove a ripple of the rectified voltage, and the DC-AC conversion unit may include a 3-level inverter receiving the DC voltage from the one pair of film capacitors to supply the AC power to the motor.
    Type: Application
    Filed: March 14, 2016
    Publication date: September 15, 2016
    Inventors: Je Hyung Cho, Sun Jin Kim, Han Sol Seo
  • Publication number: 20160268950
    Abstract: A motor driving apparatus includes a rectifying circuit to rectify an AC power supplied from an external AC power source, one pair of film capacitors to output a DC voltage and a neutral point voltage by removing a ripple of a voltage rectified by the AC-DC conversion unit, a 3-level inverter to supply a driving current to a motor using the DC voltage applied from the DC link unit, and a control module to control the 3-level inverter. The control module includes a motor speed control module to control the rotation of the motor, a DC voltage control module to stabilize the DC voltage, a neutral point voltage control module to stabilize the neutral point voltage, and a stabilizing voltage limiting module to control the DC voltage control module and the neutral point voltage control module according to an output of the motor speed control module.
    Type: Application
    Filed: March 14, 2016
    Publication date: September 15, 2016
    Inventors: Je Hyung Cho, Seung-Ki Sul, Se Hwa Choe, Han Sol Seo
  • Patent number: 9419387
    Abstract: A plug for a DC appliance includes an input unit including anode and cathode terminals, an output unit including anode and cathode terminals to allow a DC current input through the input unit to be output to an electric device, a connection unit to interconnect the input unit and the output unit, a rectifier unit coupled between anode and cathode terminals of the input unit to rectify the input DC current, an inductor unit connected in series to the rectifier unit so that an internal current of the plug is gradually increased in response to an increase of the input DC current, and a condenser unit connected in series to the inductor unit, which is charged with voltage in response to a current passing through the inductor unit, and discharges the charged voltage to the output unit when the input of the DC current from the input unit is interrupted.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 16, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyun Cheol Jin, Han Sol Seo, Hyun Soo Park, Byoung Kuk Lee, Joon Young Jeon
  • Publication number: 20160190964
    Abstract: Disclosed herein are a motor driving apparatus and a controlling method thereof. The motor driving apparatus includes a motor having a rotor including a permanent magnet, and a stator, an inverter to supply a driving power to the motor, and a control unit to estimate a parameter using a startup estimation when a rotation speed of the rotor is less than a preset startup speed, to estimate the parameter using a driving estimation with compensating for a dead time when the rotation speed of the rotor is equal to or greater than the preset startup speed and a torque of the rotor is equal to or less than a preset driving torque, and to estimate the parameter using the driving estimation without the dead time compensation when the rotation speed of the rotor is equal to or greater than the preset startup speed and the torque of the rotor exceeds the preset driving torque.
    Type: Application
    Filed: December 30, 2015
    Publication date: June 30, 2016
    Inventors: Jong-Hyun Shin, Jin Woong Kim, Han Sol Seo, Jung-Ik Ha
  • Publication number: 20160190914
    Abstract: A power factor correction circuit and an electronic product including the same are disclosed. This technology configures a bridgeless circuit with no rectifier diode by using an additional switch, eliminating conduction loss due to the diode and reducing common mode EMI noise of the power factor correction circuit. A power factor correction circuit includes at least one inductor directly connected to an AC input stage, an output capacitor to smooth the output voltage, first switching elements to control current to store magnetic energy in the inductor, and a second switching element to maintain a substantially constant voltage between a ground voltage of an AC input stage and a ground voltage of an output stage.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 30, 2016
    Inventors: Jin-Han KIM, Han Sol SEO, Bo Hyung CHO, Paul JANG, Sang Woo KANG
  • Publication number: 20150381095
    Abstract: An inverter control apparatus and a control method thereof are provided. The inverter control apparatus and a control method thereof stably operate a three-phase motor using a capacitor having a small capacitance for a DC link. The inverter control apparatus includes a current sensor to sense an output current of the inverter, a voltage sensor to sense a DC-link voltage of the inverter, and a controller to generate an average of a periodically varying rotor based q-axis current boundary value based on the output current and the DC-link voltage to generate a current reference on the basis of the average of the rotor based q-axis current boundary value, and to drive a three-phase motor based on the current reference. Stabilized variable speed control of a motor by using a small-capacitance capacitor for a DC link of an inverter is performed and reliability of an inverter circuit improved.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 31, 2015
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Young Jae PARK, Han Sol Seo, Bodrov Alexey, Seung Ki Sul, Hyun-Sam Jung, Seung-Jun Chee
  • Patent number: 9136790
    Abstract: An inverter control apparatus and a control method thereof are provided. The inverter control apparatus and a control method thereof stably operate a three-phase motor using a capacitor having a small capacitance for a DC link. The inverter control apparatus includes a current sensor to sense an output current of the inverter, a voltage sensor to sense a DC-link voltage of the inverter, and a controller to generate an average of a periodically varying rotor based q-axis current boundary value based on the output current and the DC-link voltage to generate a current reference on the basis of the average of the rotor based q-axis current boundary value, and to drive a three-phase motor based on the current reference. Stabilized variable speed control of a motor by using a small-capacitance capacitor for a DC link of an inverter is performed and reliability of an inverter circuit improved.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 15, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Young Jae Park, Han Sol Seo, Bodrov Alexey, Seung Ki Sul, Hyun-Sam Jung, Seung-Jun Chee