Patents by Inventor Joung-Ho Son

Joung-Ho Son 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: 10944291
    Abstract: A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal in a detection mode for determining whether any one or both of an external object approaching and a type of the external object. The controller is configured to control the switching element, and gradually increase a duty cycle of a gate signal provided to the switching element, in the detection mode.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 9, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Yun Ki Hong, Joung Ho Son, Keun Soo Ha, Dae Sik Kim, Eun Young Shin, Seung Won Park
  • Patent number: 10886783
    Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 5, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Se Joo Kim, Tae Seok Ko, Young Woon Choi, Joung Ho Son, Doo Young Song
  • Publication number: 20190222065
    Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.
    Type: Application
    Filed: October 15, 2018
    Publication date: July 18, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Se Joo KIM, Tae Seok KO, Young Woon CHOI, Joung Ho SON, Doo Young SONG
  • Publication number: 20190165610
    Abstract: A wireless power transmitter includes a first resonance circuit having first resonance characteristics; a second resonance circuit having second resonance characteristics different from the first resonance characteristics; a first inverter configured to provide alternating current (AC) power to the first resonance circuit using an input direct current (DC) power; a second inverter configured to provide the AC power to the second resonance circuit using the input DC power; and a controller configured to control the first inverter and the second inverter to cause the first resonance circuit to wirelessly transmit power, and to cause the second resonance circuit to transmit an external object sensing signal while the first resonance circuit wirelessly transmits power.
    Type: Application
    Filed: July 9, 2018
    Publication date: May 30, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yun Ki HONG, Joung Ho SON, Eun Young SHIN, Dae Sik KIM, Hyo Young KIM, Seung Won PARK
  • Patent number: 10227764
    Abstract: A valve control system may include a latch valve controlling a stream of water in a pipe; a flow rate sensor measuring a flow rate in the pipe; and a valve control device determining that the latch valve is malfunctioning if a flow rate value measured by the flow rate sensor is not within a pre-set flow rate value range corresponding to a valve operation and controlling the latch valve to re-operate in the occurrence of the malfunction, wherein the valve control device may include a first timing device determining the number of re-operations of the latch valve, and wherein when the number of re-operations of the latch valve determined by the first timing device exceeds a pre-set number, the valve control device may control the latch valve to perform a reverse operation of the operation performed during the re-operations.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: March 12, 2019
    Assignee: Coway Co., Ltd
    Inventors: Joung-Ho Son, In-Seok Seo, Ki-Chul Kim
  • Publication number: 20180102668
    Abstract: A wireless power transmitter includes a converter comprising at least one switching element, and configured to generate boosted input power; a resonator and a controller. The resonator is configured to receive the boosted input power as an alternating current (AC) power, and transmit a ping signal in a detection mode for determining whether any one or both of an external object approaching and a type of the external object. The controller is configured to control the switching element, and gradually increase a duty cycle of a gate signal provided to the switching element, in the detection mode.
    Type: Application
    Filed: August 31, 2017
    Publication date: April 12, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yun Ki HONG, Joung Ho SON, Keun Soo HA, Dae Sik KIM, Eun Young SHIN, Seung Won PARK
  • Patent number: 9502999
    Abstract: There is provided an apparatus for driving a motor including: a converter applying an input voltage to each phase winding of the motor; and a processor controlling a phase current flowing to the phase winding to which the input voltage is applied to be increased or decreased in a preset reference range and controlling phase commutation of the motor based on a change in the phase current.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: November 22, 2016
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Keun Soo Ha, Rea Young Kim, Joung Ho Son, Min Jae Ahn, Jae Hoon Kim, Mu Seon Woo
  • Patent number: 9353724
    Abstract: A generator includes: an upper housing and a lower housing; a water inlet and a water outlet provided in the upper housing; an impeller rotatably fixed inside the upper housing; a magnet provided in the lower housing, connected to a rotating shaft of the impeller, and rotated integrally with the impeller; and a bobbin positioned outside the magnet. A bearing through which the rotating shaft passes and a communication hole connecting a space for housing the impeller to a space for housing the magnet are disposed in an intermediate surface between the space for housing the impeller and the space for housing the magnet.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: May 31, 2016
    Assignee: Woongjin Coway Co., Ltd
    Inventors: Man-Uk Park, Sung-Worl Jin, Young-Sang Yun, Ji-Hye Jeong, In-Seok Seo, Ki-Chul Kim, Joung-Ho Son
  • Publication number: 20160118926
    Abstract: There is provided a motor driving apparatus comprising: a timer configured to output a time information; and a control unit configured to decrease a speed of a motor, after determining, based on the time information, that a driving time of the motor has elapsed for a predetermined period of time.
    Type: Application
    Filed: October 19, 2015
    Publication date: April 28, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyu Dong KIM, Geun Hong LEE, Joung Ho SON
  • Publication number: 20160056443
    Abstract: An apparatus for preventing discharge of a battery for an automobile includes a cleaner driven using the battery for an automobile, a rotation sensing unit sensing a rotation speed of the cleaner, and a controlling unit receiving information on the rotation speed of the cleaner from the rotation sensing unit and transmitting a signal externally. Whether or not the cleaner is driven is controlled in response to a driving signal of the controlling unit.
    Type: Application
    Filed: March 18, 2015
    Publication date: February 25, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Gyoung Tai KIM, Joon Sik SHIN, Joung Ho SON, Sung Jun LEEM
  • Publication number: 20160056746
    Abstract: There is provided an apparatus for driving a switched reluctance motor (SRM), the apparatus including a motor driver for applying an input voltage to each phase of the SRM to drive the SRM through a switching operation, and a processor for controlling a driving state of the SRM through control of the switching operation based on a rotational speed of the SRM.
    Type: Application
    Filed: May 14, 2015
    Publication date: February 25, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Joung Ho SON, Kyu Dong KIM, Geun Hong LEE
  • Publication number: 20160049893
    Abstract: There is provided an apparatus for driving a switched reluctance motor (SRM), including: a motor driver applying a input voltage supplied from a power supply unit to phase windings of the SRM through a switching operation; and a processor controlling the switching operation of the motor driver depending on a driving state of the SRM.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 18, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Joung Ho SON, Mu Seon WOO, Dae Sung KIM, Bok Young HONG
  • Publication number: 20160006380
    Abstract: There is provided an apparatus for driving a motor including: a converter applying an input voltage to each phase winding of the motor; and a processor controlling a phase current flowing to the phase winding to which the input voltage is applied to be increased or decreased in a preset reference range and controlling phase commutation of the motor based on a change in the phase current.
    Type: Application
    Filed: June 10, 2015
    Publication date: January 7, 2016
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Keun Soo HA, Rea Young KIM, Joung Ho SON, Min Jae AHN, Jae Hoon KIM, Mu Seon WOO
  • Publication number: 20150233104
    Abstract: A valve control system may include a latch valve controlling a stream of water in a pipe; a flow rate sensor measuring a flow rate in the pipe; and a valve control device determining that the latch valve is malfunctioning if a flow rate value measured by the flow rate sensor is not within a pre-set flow rate value range corresponding to a valve operation and controlling the latch valve to re-operate in the occurrence of the malfunction, wherein the valve control device may include a first timing device determining the number of re-operations of the latch valve, and wherein when the number of re-operations of the latch valve determined by the first timing device exceeds a pre-set number, the valve control device may control the latch valve to perform a reverse operation of the operation performed during the re-operations.
    Type: Application
    Filed: May 6, 2015
    Publication date: August 20, 2015
    Inventors: Joung-Ho SON, In-Seok Seo, Ki-Chul Kim
  • Publication number: 20150194916
    Abstract: Embodiments of the invention provide an apparatus for driving a motor, in which the apparatus includes a rectifier configured to rectify an input voltage to generate a driving voltage, and a motor driver configured to apply the driving voltage to the respective phases of the motor through a switching operation. The apparatus further includes a controller configured to control a pulse width modulation signal for controlling the switching operation of the motor driver, to decide whether or not driving of the motor is stopped depending on whether or not an over-voltage is generated in the input voltage based on an output voltage sensed by the rectifier and to decide whether or not the motor is again driven or whether or not the driving of the motor is completely stopped by deciding whether or not the input voltage returns to a normal voltage or whether or not the over-voltage is again generated within a predetermined time according to the number of generated over-voltages.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 9, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Nam Hong JANG, Joung Ho SON, Hong Chul SHIN
  • Patent number: 9032562
    Abstract: There are provided a valve control system, a bidet using the same, and a valve control method. The valve control system includes a latch valve controlling a stream of water in a pipe; a flow rate sensor measuring a flow rate in the pipe; and a valve control device controlling the operation of the latch valve. The valve control device determines whether or not the latch valve is malfunctioning upon analyzing a flow rate measured by the flow rate sensor. When the latch valve is malfunctioning, the valve control device controls the latch valve to re-operate.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: May 19, 2015
    Assignee: Woongjin Coway Co., Ltd
    Inventors: Joung-Ho Son, In-Seok Seo, Ki-Chul Kim
  • Publication number: 20150102751
    Abstract: Embodiments of the invention provide a motor acceleration apparatus and a motor acceleration method. According to at least one embodiment, the motor acceleration apparatus includes a rectifier converting household power into direct current (DC) voltage to output the converted DC voltage, a switching converter switching the DC voltage output from the rectifier in an alternating current manner to drive a two-phase switched reluctance motor (SRM), and a microprocessor controlling the switching converter at the time of initial acceleration of the two-phase SRM, so that an initially set dwell angle is changed to a dwell angle in a normal operation state and starting an advanced-angle control.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 16, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Joung Ho SON, Mu Seon WOO, Hong Chul SHIN, Dae Sung KIM
  • Publication number: 20150103449
    Abstract: Disclosed herein are a motor protection device, a motor protection method, and a motor control system using the same. According to the present invention, the motor protection device including: a rotation speed change sensing unit that senses and outputs pulse widths of a pulse signal outputted from a rotation sensor installed in a motor; an abnormality determining unit that outputs abnormality-occurrence signal if the pulse widths of the pulse signal outputted from the rotation speed change sensing unit increase beyond a predetermined value; and a stopping unit that stops operation of a motor control system if the abnormality-occurrence signal is outputted from the abnormality determining unit, the motor protection method, and the motor control system using the same are provided.
    Type: Application
    Filed: February 26, 2014
    Publication date: April 16, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Joung Ho Son, Nam Hong Jang, Keun Soo Ha
  • Patent number: 8793819
    Abstract: There is provided a method for controlling a self-generating bidet that can perform power-generation and charging by introduced water and can be stably used. The method for controlling a self-generating bidet comprising a generator, a charging unit, a nozzle part, and a nozzle passage part that is provided between the generator and the nozzle part, the method for controlling the self-generating bidet comprising: a step of sensing the use of the bidet that senses whether the user wishes to use the bidet; and, if it is determined that the user wishes to use the bidet, a step of checking voltage that determines whether the voltage charged in the charging unit is lower than a predetermined reference voltage, and if so, performs power generation through the generator, and charges the charging unit.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 5, 2014
    Assignee: Woongjin Coway Co., Ltd.
    Inventors: In Seok Seo, Ki Chul Kim, Joung Ho Son, Man Uk Park, Sung Worl Jin, Young Sang Yun, Ji Hye Jeong
  • Publication number: 20140184112
    Abstract: Disclosed herein are a method and apparatus of controlling driving of a two-phase switched reluctance motor (SRM). The apparatus includes: a target speed arrival judging unit judging whether or not a current speed of the SRM has arrived at a target speed; a zero volt switching (ZVS) achievement judging unit judging whether or not the SRM is in a state in which ZVS is possible; a negative torque generation judging unit judging whether or not a negative torque has been generated in the SRM; an advanced angle controlling unit judging whether or not an advanced angle will be controlled based on judgment results of the target speed arrival judging unit, the ZVS achievement judging unit, and the negative torque generation judging unit; and a dwell angle controlling unit judging whether or not a dwell angle will be controlled on the judgment results.
    Type: Application
    Filed: March 17, 2013
    Publication date: July 3, 2014
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyung Joon Kim, Guen Hong Lee, Joung Ho Son, Han Kyung Bae, Hong Chul Shin