Patents by Inventor Byong-Uk HWANG

Byong-Uk HWANG 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: 20210036556
    Abstract: The present disclosure provides an apparatus and method for detecting a foreign object in a wireless power transmitting system. The wireless power transmitting apparatus measures an initial transmission power transmitted from the primary core block and performs foreign object detection on the basis of the initial transmission power, once it is found that an initial voltage of an output terminal of the wireless power receiving apparatus connected to an external load is within the range of a reference voltage. By performing foreign object detection while a wireless power receiving apparatus is in an initial setting completion state, before the output of the wireless power receiving apparatus is turned on, delay in detecting foreign objects may be reduced, and a risk due to heating of a foreign object may be avoided.
    Type: Application
    Filed: October 20, 2020
    Publication date: February 4, 2021
    Inventors: Chun Kil Jung, Byong Uk Hwang
  • Publication number: 20200381952
    Abstract: The present disclosure provides a signal processing method performed by a hybrid wireless power transmitting apparatus which is configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the method comprising transmitting a first object detection signal via an inductive power transmitting unit and a second object detection signal via a magnetic resonant power transmitting unit alternatively; operating one of the inductive power transmitting unit and the magnetic resonant power transmitting unit which is selected based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively; and transmitting wireless power signal via the selected power transmitting unit; and a hybrid wireless power transmitting apparatus using the method.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 3, 2020
    Inventors: Chun-Kil Jung, Byong-Uk Hwang
  • Patent number: 10848011
    Abstract: The present invention provides an apparatus and method for detecting a foreign object in a wireless power transmitting system. The wireless power transmitting apparatus measures an initial transmission power transmitted from the primary core block and performs foreign object detection on the basis of the initial transmission power, once it is found that an initial voltage of an output terminal of the wireless power receiving apparatus connected to an external load is within the range of a reference voltage. By performing foreign object detection while a wireless power receiving apparatus is in an initial setting completion state, before the output of the wireless power receiving apparatus is turned on, delay in detecting foreign objects may be reduced, and a risk due to heating of a foreign object may be avoided.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 24, 2020
    Assignee: GE Hybrid Technologies, LLC
    Inventors: Chun Kil Jung, Byong Uk Hwang
  • Patent number: 10778037
    Abstract: The present invention provides a signal processing method performed by a hybrid wireless power transmitting apparatus which is configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the method comprising transmitting a first object detection signal via an inductive power transmitting unit and a second object detection signal via a magnetic resonant power transmitting unit alternatively; operating one of the inductive power transmitting unit and the magnetic resonant power transmitting unit which is selected based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively; and transmitting wireless power signal via the selected power transmitting unit; and a hybrid wireless power transmitting apparatus using the method.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: September 15, 2020
    Assignee: GE Hybrid Technologies, LLC
    Inventors: Chun-Kil Jung, Byong-Uk Hwang
  • Publication number: 20200251932
    Abstract: The present invention relates to low-heat wireless power receiving device and method for charging a battery with low heat by receiving a wireless power signal from a wireless power transmitting device. When a power receiving coil receives a wireless power signal, a control unit matches impedance by controlling an impedance matching/controlling unit, determines a charging load state of a power receiving unit in accordance with a time-lapse of charging the power receiving unit and a current level detected by a current detecting unit, and selectively turns on a low-heat transforming unit and a high-heat transforming unit in accordance with the selected charging load state, thereby charging the power receiving unit with minimum heat generation.
    Type: Application
    Filed: April 23, 2020
    Publication date: August 6, 2020
    Inventors: Suk-Woo CHUNG, Byong-Uk HWANG
  • Patent number: 10673270
    Abstract: The present invention relates to low-heat wireless power receiving device and method for charging a battery with low heat by receiving a wireless power signal from a wireless power transmitting device. When a power receiving coil receives a wireless power signal, a control unit matches impedance by controlling an impedance matching/controlling unit, determines a charging load state of a power receiving unit in accordance with a time-lapse of charging the power receiving unit and a current level detected by a current detecting unit, and selectively turns on a low-heat transforming unit and a high-heat transforming unit in accordance with the selected charging load state, thereby charging the power receiving unit with minimum heat generation.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: June 2, 2020
    Assignee: GE HYBRID TECHNOLOGIES, LLC
    Inventors: Suk-Woo Chung, Byong-Uk Hwang
  • Publication number: 20200009972
    Abstract: A wireless power transmission device for a vehicle and a method are provided. The wireless power transmission device for a vehicle may transmit a signal for detection of a wireless power reception device by using a lower frequency band that is different from an operating frequency band used to control the vehicle. The wireless power transmission device may receive a response signal for the transmitted signal and a power control signal from the wireless power reception device. The wireless power transmission device may control an operating frequency or a voltage (or both) in the wireless power transmission device for the vehicle according to the power control signal. The wireless power transmission device may transmit wireless power to the wireless power reception device.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Inventors: Chun Kil Jung, Byong Uk Hwang
  • Patent number: 10442298
    Abstract: A wireless power transmission device for a vehicle and a wireless charging method are provided. The wireless charging method by the wireless power transmission device for a vehicle can comprise the steps of: transmitting a signal for detection of a wireless power reception device by using a lower frequency band than an operating frequency band used to control the vehicle; receiving a response signal for the transmitted signal and a power control signal from the wireless power reception device; controlling an operating frequency and/or a voltage in the wireless power transmission device for the vehicle according to the power control signal; and transmitting wireless power to the wireless power reception device.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 15, 2019
    Assignee: GE HYBRID TECHNOLOGIES, LLC
    Inventors: Chun Kil Jung, Byong Uk Hwang
  • Publication number: 20180262056
    Abstract: The present invention provides a signal processing method performed by a hybrid wireless power transmitting apparatus which is configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the method comprising transmitting a first object detection signal via an inductive power transmitting unit and a second object detection signal via a magnetic resonant power transmitting unit alternatively; operating one of the inductive power transmitting unit and the magnetic resonant power transmitting unit which is selected based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively; and transmitting wireless power signal via the selected power transmitting unit; and a hybrid wireless power transmitting apparatus using the method.
    Type: Application
    Filed: May 8, 2018
    Publication date: September 13, 2018
    Inventors: Chun-Kil JUNG, Byong-Uk HWANG
  • Patent number: 10014725
    Abstract: The present invention provides a signal processing method performed by a hybrid wireless power transmitting apparatus which is configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the method comprising transmitting a first object detection signal via an inductive power transmitting unit and a second object detection signal via a magnetic resonant power transmitting unit alternatively; operating one of the inductive power transmitting unit and the magnetic resonant power transmitting unit which is selected based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively; and transmitting wireless power signal via the selected power transmitting unit; and a hybrid wireless power transmitting apparatus using the method.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: July 3, 2018
    Assignee: GE HYBRID TECHNOLOGIES, LLC
    Inventors: Chun-Kil Jung, Byong-Uk Hwang
  • Publication number: 20180183258
    Abstract: The present invention relates to low-heat wireless power receiving device and method for charging a battery with low heat by receiving a wireless power signal from a wireless power transmitting device. When a power receiving coil receives a wireless power signal, a control unit matches impedance by controlling an impedance matching/controlling unit, determines a charging load state of a power receiving unit in accordance with a time-lapse of charging the power receiving unit and a current level detected by a current detecting unit, and selectively turns on a low-heat transforming unit and a high-heat transforming unit in accordance with the selected charging load state, thereby charging the power receiving unit with minimum heat generation.
    Type: Application
    Filed: February 19, 2018
    Publication date: June 28, 2018
    Inventors: Suk-Woo CHUNG, Byong-Uk HWANG
  • Patent number: 9923403
    Abstract: The present invention relates to low-heat wireless power receiving device and method for charging a battery with low heat by receiving a wireless power signal from a wireless power transmitting device. When a power receiving coil receives a wireless power signal, a control unit matches impedance by controlling an impedance matching/controlling unit, determines a charging load state of a power receiving unit in accordance with a time-lapse of charging the power receiving unit and a current level detected by a current detecting unit, and selectively turns on a low-heat transforming unit and a high-heat transforming unit in accordance with the selected charging load state, thereby charging the power receiving unit with minimum heat generation.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: March 20, 2018
    Assignee: GE HYBRID TECHNOLOGIES, LLC
    Inventors: Suk-Woo Chung, Byong-Uk Hwang
  • Publication number: 20160254705
    Abstract: The present invention provides a signal processing method performed by a hybrid wireless power transmitting apparatus which is configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the method comprising transmitting a first object detection signal via an inductive power transmitting unit and a second object detection signal via a magnetic resonant power transmitting unit alternatively; operating one of the inductive power transmitting unit and the magnetic resonant power transmitting unit which is selected based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively; and transmitting wireless power signal via the selected power transmitting unit; and a hybrid wireless power transmitting apparatus using the method.
    Type: Application
    Filed: November 15, 2013
    Publication date: September 1, 2016
    Applicant: HANRIM POSTECH CO., LTD.
    Inventors: Chun-Kil JUNG, Byong-Uk HWANG
  • Patent number: 9423439
    Abstract: An apparatus and method for detecting a foreign object in a wireless power transmitting system are provided. In a case in which a foreign object is not detected prior to charging, an attempt to detect a foreign object detection during charging is performed, and when a foreign object is not detected while a power signal is being received, power is limited based on a temperature sensor.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 23, 2016
    Assignee: HANRIM POSTECH CO., LTD.
    Inventors: Chun Kil Jung, Byong Uk Hwang
  • Publication number: 20160221459
    Abstract: A wireless power transmission device for a vehicle and a wireless charging method are provided. The wireless charging method by the wireless power transmission device for a vehicle can comprise the steps of: transmitting a signal for detection of a wireless power reception device by using a lower frequency band than an operating frequency band used to control the vehicle; receiving a response signal for the transmitted signal and a power control signal from the wireless power reception device; controlling an operating frequency and/or a voltage in the wireless power transmission device for the vehicle according to the power control signal; and transmitting wireless power to the wireless power reception device.
    Type: Application
    Filed: September 30, 2014
    Publication date: August 4, 2016
    Applicant: HANRIM POSTECH CO., LTD.
    Inventors: Chun Kil JUNG, Byong Uk HWANG
  • Publication number: 20160064991
    Abstract: The present invention relates to low-heat wireless power receiving device and method for charging a battery with low heat by receiving a wireless power signal from a wireless power transmitting device. When a power receiving coil receives a wireless power signal, a control unit matches impedance by controlling an impedance matching/controlling unit, determines a charging load state of a power receiving unit in accordance with a time-lapse of charging the power receiving unit and a current level detected by a current detecting unit, and selectively turns on a low-heat transforming unit and a high-heat transforming unit in accordance with the selected charging load state, thereby charging the power receiving unit with minimum heat generation.
    Type: Application
    Filed: February 5, 2014
    Publication date: March 3, 2016
    Applicant: HANRIM POSTECH CO., LTD.
    Inventors: Suk-Woo CHUNG, Byong-Uk HWANG
  • Patent number: 9191075
    Abstract: Disclosed herein are a wireless power transmission control method in a wireless power transmission system, including receiving awake-up signal from a wireless power receiving apparatus and transmitting a wireless power transmission signal to the wireless power receiving apparatus through a transmission coil of a wireless power transmission apparatus while activating a deactivated power block when the wake-up signal is received; a wireless power transmission apparatus using the same; and a wireless power receiving apparatus using the same.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: November 17, 2015
    Assignee: HANRIM POSTECH CO., LTD.
    Inventors: Chun-Kil Jung, Hee-Jeong Park, Byong-Uk Hwang
  • Publication number: 20140266036
    Abstract: An apparatus and method for detecting a foreign object in a wireless power transmitting system are provided. In a case in which a foreign object is not detected prior to charging, an attempt to detect a foreign object detection during charging is performed, and when a foreign object is not detected while a power signal is being received, power is limited based on a temperature sensor.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: HANRIM POSTECH CO., LTD.
    Inventors: Chun Kil JUNG, Byong Uk HWANG
  • Publication number: 20140232199
    Abstract: The present invention provides an apparatus and method for detecting a foreign object in a wireless power transmitting system. The wireless power transmitting apparatus measures an initial transmission power transmitted from the primary core block and performs foreign object detection on the basis of the initial transmission power, once it is found that an initial voltage of an output terminal of the wireless power receiving apparatus connected to an external load is within the range of a reference voltage. By performing foreign object detection while a wireless power receiving apparatus is in an initial setting completion state, before the output of the wireless power receiving apparatus is turned on, delay in detecting foreign objects may be reduced, and a risk due to heating of a foreign object may be avoided.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 21, 2014
    Applicant: SPACON CO., LTD.
    Inventors: Chun Kil JUNG, Byong Uk HWANG
  • Publication number: 20140184149
    Abstract: Disclosed herein are a wireless power transmission control method in a wireless power transmission system, including receiving awake-up signal from a wireless power receiving apparatus and transmitting a wireless power transmission signal to the wireless power receiving apparatus through a transmission coil of a wireless power transmission apparatus while activating a deactivated power block when the wake-up signal is received; a wireless power transmission apparatus using the same; and a wireless power receiving apparatus using the same.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 3, 2014
    Applicant: Hanrim Postech Co., Ltd.
    Inventors: Chun-Kil JUNG, Hee-Jeong PARK, Byong-Uk HWANG