Patents by Inventor Kwang-seok Choi

Kwang-seok 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).

  • Patent number: 10384670
    Abstract: A method of controlling a hybrid vehicle in case of slip of a Mild Hybrid Starter Generator (MHSG) drive belt is disclosed. The method may include determining an amount of torque assistance or an amount of regenerative braking according to the MHSG while the vehicle travels; instructing the MHSG to output a desired amount of torque, based on the amount of torque assistance or the amount of regenerative braking; detecting an output torque from the MHSG to compare the output torque with the desired amount of torque; and determining that slip occurs in the MHSG drive belt when a difference between the actual torque and the desired amount of torque exceeds a preference value, and performing control for slip prevention.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: August 20, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Kwang-Seok Choi
  • Publication number: 20190167746
    Abstract: The present invention relates to a method of preparing a lyophilizate of a Taheebo alcohol extract, including: (a) extracting Taheebo with an alcohol and concentrating an extract; and (b) lyophilizing the alcohol-extracted and concentrated Taheebo, and a composition for the treatment, prevention or amelioration of an inflammatory disease including a lyophilizate of a Taheebo alcohol extract prepared therefrom.
    Type: Application
    Filed: July 14, 2017
    Publication date: June 6, 2019
    Applicants: NUTRIBIOTECH, NUTRISCIENCE CO., LTD.
    Inventors: Kwang Soo BAEK, Jin Hak KIM, Su Young CHOI, Young Min PARK, Jae Seok SHIM, Sang Woo KIM, Mann Seok YOON, Yoon Jong LEE
  • Publication number: 20190160952
    Abstract: A method for executing regenerative braking of a mild hybrid system may include performing, when a brake is operated while a vehicle having the mild hybrid system is traveling, regenerative braking only in a state in which a wheel torque is greater than a clutch load torque by a threshold, thereby preventing occurrence of an abnormal engine-off state during regenerative braking.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 30, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Kwang-Seok Choi
  • Publication number: 20190149844
    Abstract: Provided is a video encoding method including obtaining a projected image by projecting a three-dimensional image onto a polyhedron; generating a rectangular image including a first pixel region and a second pixel region, the first pixel region corresponding to the projected image; selecting a block including at least one pixel included in the first pixel region and at least one pixel included in the second pixel region, the block being from among blocks split from the rectangular image and each block having a predetermined size; substituting a pixel value of the at least one pixel included in the second pixel region included in the selected block with a predetermined value; and encoding the selected block.
    Type: Application
    Filed: May 16, 2017
    Publication date: May 16, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-seok CHOI, Kwang-pyo CHOI
  • Patent number: 10253743
    Abstract: An apparatus for controlling a start of an engine may include the engine, a first motor connected to a crankshaft by a first connecting device to start the engine, a main battery supplying a start power to the first motor, a controller configured to monitor components of a vehicle according to a start command for the engine to generate diagnostic information and generating a reverse charging control command to supply the reverse charging power to the main battery as the determination result of the diagnostic information, and an auxiliary battery supplying the reverse charging power to the main battery according to the reverse charging control command.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 9, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kwang-Seok Choi
  • Patent number: 10249940
    Abstract: A signal distributing/combining apparatus in an antenna device of a mobile communication base station includes a circuit board configured to have an upper surface formed with a signal distributing/combining conductor pattern for a high frequency signal distributing/combining operation, and a support plate configured to have an upper mounting surface of a size corresponding to the circuit board, to mate with the circuit board so that an underside of the circuit board is in close contact with the upper mounting surface for supporting the circuit board, and to fixedly mate with the antenna device at a reflection plate on a bottom side of the support plate. The support plate is provided with a plurality of cable holders for supporting and fixating coaxial cables for signal transmission which are connected from outside of the apparatus.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 2, 2019
    Assignee: KMW INC.
    Inventors: Young-Chan Moon, Sung-Hwan So, Hun-Jung Jung, Kwang-Seok Choi, Jae-Jeng Choi
  • Publication number: 20190078493
    Abstract: A method for diagnosing a failure of a solenoid valve of a piston cooling device is provided. The method includes varying a pressure in a variable proportional control oil pump when an opening command or a closing command of the solenoid valve is sent to inject oil from the piston cooling device. Additionally, a variation of an oil pressure in an oil flow path of the piston cooling device is monitoring according to a variation of the pressure in the variable proportional control oil pump and whether a failure occurs at the solenoid valve of the piston cooling device is then determined.
    Type: Application
    Filed: December 8, 2017
    Publication date: March 14, 2019
    Inventors: Jin-Sung Kim, Kwang-Seok Choi
  • Publication number: 20180298862
    Abstract: An apparatus for controlling a start sequence of an engine for a vehicle may include an engine, a motor configured to start the engine, a main switch configured to connect power to the motor or interrupt the power to be supplied to the motor, a main battery configured to supply the power to the motor through the main switch, a converter configured to step up a voltage of the motor by boosting reverse power through a reverse control operation, an auxiliary battery configured to supply the reverse power, and a converter controller configured to perform a pre-charging operation for a predetermined time through the reverse control operation when an ignition-ON signal is inputted, and close the main switch when the pre-charging operation is completed.
    Type: Application
    Filed: December 12, 2017
    Publication date: October 18, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Kwang-Seok Choi, Do-Sung Hwang, Jeong-Hye Choi, Ki-Hong Kang
  • Publication number: 20180198191
    Abstract: A multi-polarized radiating element of the present disclosure includes first, second, third, and fourth radiating arms arranged in a four-way symmetrical manner on a plane; a first feeding line commonly fed to the fourth radiating arm and the first radiating arm, and commonly grounded to the second radiating arm and the third radiating arm; and a second feeding line commonly fed to the first radiating arm and the second radiating arm, and commonly grounded to the third radiating arm and the fourth radiating arm.
    Type: Application
    Filed: March 8, 2018
    Publication date: July 12, 2018
    Inventors: Sung-Hwan SO, Hun-Jung JUNG, Kwang-Seok CHOI, Jae-Jung CHOI
  • Publication number: 20180174374
    Abstract: A system for diagnosing deterioration of a drive belt in a vehicle may include an engine, a motor connected to a shaft of a crankshaft of the engine via the drive belt to generate electric power, a controller for identifying slip of the drive belt and subsequently determining that deterioration of the drive belt is diagnosed (the “deterioration diagnosis”) or slip of the drive belt is diagnosed as being due to friction of the engine (the “slip diagnosis”) depending on whether conditions for diagnosing deterioration are fulfilled and then generating a torque adjustment command to adjust torque of the motor depending on the deterioration diagnosis or the slip diagnosis, and a main battery for supplying electric power to the motor in response to the torque adjustment command.
    Type: Application
    Filed: November 13, 2017
    Publication date: June 21, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kwang-Seok Choi
  • Publication number: 20180171961
    Abstract: An apparatus for controlling a start of an engine may include the engine, a first motor connected to a crankshaft by a first connecting device to start the engine, a main battery supplying a start power to the first motor, a controller configured to monitor components of a vehicle according to a start command for the engine to generate diagnostic information and generating a reverse charging control command to supply the reverse charging power to the main battery as the determination result of the diagnostic information, and an auxiliary battery supplying the reverse charging power to the main battery according to the reverse charging control command.
    Type: Application
    Filed: November 13, 2017
    Publication date: June 21, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kwang-Seok Choi
  • Publication number: 20180170358
    Abstract: A method of controlling a hybrid vehicle in case of slip of a Mild Hybrid Starter Generator (MHSG) drive belt is disclosed. The method may include determining an amount of torque assistance or an amount of regenerative braking according to the MHSG while the vehicle travels; instructing the MHSG to output a desired amount of torque, based on the amount of torque assistance or the amount of regenerative braking; detecting an output torque from the MHSG to compare the output torque with the desired amount of torque; and determining that slip occurs in the MHSG drive belt when a difference between the actual torque and the desired amount of torque exceeds a preference value, and performing control for slip prevention.
    Type: Application
    Filed: November 13, 2017
    Publication date: June 21, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Kwang-Seok CHOI
  • Publication number: 20180170362
    Abstract: An apparatus for controlling power generation in a vehicle may include an engine, a motor connected to a crankshaft of the engine by a connecting device to generate power, a main battery supplying power to the motor, a controller diagnosing a failure of the main battery and generating a reverse output control command to reversely supply seed power for prefluxing the motor to the main battery when the failure occurs, an auxiliary battery outputting the seed power according to the reverse output control command, and a converter regulating the seed power according to the reverse output control command and supplying the regulated seed power to the motor.
    Type: Application
    Filed: November 13, 2017
    Publication date: June 21, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kwang-Seok Choi
  • Publication number: 20180162361
    Abstract: A method of controlling energy regeneration for a mild hybrid vehicle, the mild hybrid vehicle including a mild hybrid starter generator (MHSG) that includes a rotor having a permanent magnet and an electromagnet, and engine that is connected to the MHSG for power transmission, may include determining whether a difference between an excitation current required to drive the MHSG and a desired amount of generated current is less than a predetermined reference value; and prohibiting regenerative braking when a difference between the excitation current required to drive the MHSG and the desired amount of generated current is less than the predetermined reference value.
    Type: Application
    Filed: November 7, 2017
    Publication date: June 14, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kwang-Seok Choi
  • Publication number: 20180108962
    Abstract: A multi-line phase shifter of a multi-band mobile communication base station antenna includes: a multi-line phase shifting circuit for receiving an input signal of a first frequency band, and dividing and phase-shifting the input signal so as to correspond to a plurality of radiation elements; and a plurality of frequency combination/division circuits for receiving a plurality of signals divided and phase-shifted by the multi-line phase shifting circuit and a plurality of signals of a second frequency band which have been inputted by being divided and phase-shifted for a plurality of radiation elements by an external multi-line phase shifter, combining corresponding signals, and outputting the same to the plurality of radiation elements.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventors: Sung-Hwan SO, Hun-Jung JUNG, Kwang-Seok CHOI
  • Publication number: 20180006363
    Abstract: A signal distributing/combining apparatus in an antenna device of a mobile communication base station includes a circuit board configured to have an upper surface formed with a signal distributing/combining conductor pattern for a high frequency signal distributing/combining operation, and a support plate configured to have an upper mounting surface of a size corresponding to the circuit board, to mate with the circuit board so that an underside of the circuit board is in close contact with the upper mounting surface for supporting the circuit board, and to fixedly mate with the antenna device at a reflection plate on a bottom side of the support plate. The support plate is provided with a plurality of cable holders for supporting and fixating coaxial cables for signal transmission which are connected from outside of the apparatus.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 4, 2018
    Inventors: Young-Chan MOON, Sung-Hwan SO, Hun-Jung JUNG, Kwang-Seok CHOI, Jae-Jeng CHOI
  • Patent number: 9397390
    Abstract: Provided is a terminal including a high frequency (HF) communication line using a flexible printed circuit board (FPCB). The terminal includes a base board, a main board, an antenna, a battery, and an FPCB connected between the main board and the antenna and formed with an HF communication line for radio frequency (RF) communication. The FPCB includes a first connection formed on one end thereof and electrically connected to the main board, a second connection formed on another end thereof and electrically connected to the antenna, and a connector connecting the first connection with the second connection and bent at the right angle with the first connection and the second connection to vertically stand between the battery and the wall plate of the base board, thereby maximizing an area for the battery.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 19, 2016
    Assignee: GIGALANE CO., LTD.
    Inventors: Yong Goo Lee, Kyung Hun Jung, Kwang Seok Choi, Hee Seok Jung
  • Publication number: 20160146069
    Abstract: A method for releasing jamming of a locking pin by use of holding control may include preparing the rotation of a camshaft so that the camshaft rotates in a target direction in a state in which the locking pin is jammed in a locking pin hole; applying a signal for releasing the locking pin from the locking pin hole; performing holding control so that a signal for rotating the camshaft is not applied for a predetermined reference time; and rotating the camshaft in the target direction after the locking pin is released by the performing of the holding control.
    Type: Application
    Filed: August 28, 2015
    Publication date: May 26, 2016
    Applicants: Hyundai Motor Company, Kia Motors Corp.
    Inventor: Kwang Seok CHOI
  • Publication number: 20160138547
    Abstract: a system for starting an LPI vehicle engine includes a signal transmitting unit configured to transmit a door opening signal. A first controller is configured to determine whether an ignition-on state of an engine is required and configured to operate a fuel pump when an ignition-on signal is generated. A second controller is configured to receive the door opening signal transmitted from the signal transmitting unit and configured to operate the fuel pump by transmitting an operation signal corresponding to the ignition-on signal when the door opening signal is input.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 19, 2016
    Inventors: Hyun KIM, Kwang Seok CHOI
  • Patent number: 8907744
    Abstract: A Multi-Line Phase Shifter (MLPS) for a vertical beam tilt-controlled antenna is provided, in which a housing is shaped into an elongated rectangular box, a fixed plate is attached on an inner bottom surface of the housing and has transmission lines printed thereon, the transmission lines forming part of a plurality of phase shifting patterns and a plurality of signal division patterns, for dividing an input signal and shifting phases of divided signals, and a mobile plate is installed within the housing, movably along a length direction at a position where the mobile plate contacts a surface of the fixed plate, and has transmission lines printed thereon, the transmission lines forming a remaining part of the plurality of phase shifting patterns for phase shifting by forming variable lines through coupling with the part of the plurality of phase shifting patterns.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: December 9, 2014
    Assignee: KMW Inc.
    Inventors: Young-Chan Moon, Oh-Seog Choi, In-Ho Kim, Kwang-Seok Choi