Patents by Inventor Chun Su Yoon

Chun Su Yoon 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: 12334649
    Abstract: A reconfigurable antenna system is described which combines active and passive components used to impedance match, alter the frequency response, and change the radiation pattern of an antenna. Re-use of components such as switches and tunable capacitors make the circuit topologies more space and cost effective, while reducing complexity of the control signaling required. Antenna structures with single and multiple feed and/or ground connections are described and active circuit topologies are shown for these configurations. A processor and algorithm can reside with the antenna circuitry, or the algorithm to control antenna optimization can be implemented in a processor in the host device.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: June 17, 2025
    Assignee: Kyocera AVX Components (San Diego), Inc.
    Inventors: Laurent Desclos, Chun-Su Yoon
  • Publication number: 20240227060
    Abstract: Disclosed is a dual heating type ultrasonic bonding apparatus including a stage, a part seating jig disposed on the stage, and an ultrasonic bonding unit disposed to correspond to the part seating jig and that bonds dissimilar parts seated on the part seating jig. The stage includes a first heater that transfers heat to the dissimilar parts through the part seating jig, and the ultrasonic bonding unit includes an ultrasonic horn that applies ultrasonic waves to the dissimilar parts, and a second heater coupled to the ultrasonic horn, and that transfers heat to the dissimilar parts through the ultrasonic horn.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 11, 2024
    Applicant: WITS Co., Ltd.
    Inventors: Du Hyun SONG, Chun Su YOON
  • Publication number: 20240213802
    Abstract: Disclosed is a wireless charging coil module for wirelessly receiving or transmitting electric power or signals by using electromagnetic fields including a base, and a coil part including a coil provided on one surface of the base to be rotated in one direction. The coil includes a rolled thin plate of a conductive metal disposed on the one surface of the base, and a side part of the coil has a shape, a central portion of which protrudes or is recessed.
    Type: Application
    Filed: March 20, 2023
    Publication date: June 27, 2024
    Applicant: WITS Co., Ltd.
    Inventors: Du Hyun SONG, Chun Su YOON, Dong Hyun KIM, Seung Jae BAECK, Yong Gu YOON
  • Publication number: 20240131613
    Abstract: Disclosed is a dual heating type ultrasonic bonding apparatus including a stage, a part seating jig disposed on the stage, and an ultrasonic bonding unit disposed to correspond to the part seating jig and that bonds dissimilar parts seated on the part seating jig. The stage includes a first heater that transfers heat to the dissimilar parts through the part seating jig, and the ultrasonic bonding unit includes an ultrasonic horn that applies ultrasonic waves to the dissimilar parts, and a second heater coupled to the ultrasonic horn, and that transfers heat to the dissimilar parts through the ultrasonic horn.
    Type: Application
    Filed: March 16, 2023
    Publication date: April 25, 2024
    Applicant: WITS Co., Ltd.
    Inventors: Du Hyun SONG, Chun Su YOON
  • Patent number: 11770021
    Abstract: Disclosed is a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field, the coil module including a board, a coil provided on at least one surface of the board to be rotated in one direction, and a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts as an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part decrease, among a skin effect and a proximity effect of an eddy current generated in the coil, the proximity effect by isolating electric power in a gap of the coil that is rotated in the one direction.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: September 26, 2023
    Assignee: WITS Co., Ltd.
    Inventors: Du Hyun Song, Seung Jae Baeck, Chun Su Yoon, Jeong Yub Yang, Dong Hyun Kim, Yong Gu Yoon, Ji Hoon Yeom
  • Publication number: 20230116340
    Abstract: Disclosed is a method of manufacturing a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field. The method includes preparing a substrate, forming a coil on the substrate, and forming a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts as an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part is formed through at least one of electroless plating, electro-plating, deposition, and printing.
    Type: Application
    Filed: March 2, 2022
    Publication date: April 13, 2023
    Applicant: WITS Co., Ltd.
    Inventors: Du Hyun SONG, Seung Jae BAECK, Chun Su YOON, Jeong Yub YANG, Dong Hyun KIM, Yong Gu YOON, Ji Hoon YEOM
  • Publication number: 20230014542
    Abstract: Disclosed is a coil module that receives or transmits electric power or signals wireless by using an electromagnetic field, the coil module including a substrate, a coil provided on at least one surface of the substrate to be rotated in one direction, and a magnetic part covering at least a portion of the coil while directly contacting a surface of the coil, and that acts an electromagnetic booster that enhances an intensity of the electromagnetic field generated on the surface of the coil, and the magnetic part decrease, among a skin effect and a proximity effect of an eddy current generated in the coil, the proximity effect by isolating electric power in a gap of the coil that is rotated in the one direction.
    Type: Application
    Filed: February 28, 2022
    Publication date: January 19, 2023
    Applicant: WITS Co., Ltd.
    Inventors: Du Hyun SONG, Seung Jae BAECK, Chun Su YOON, Jeong Yub YANG, Dong Hyun KIM, Yong Gu YOON, Ji Hoon YEOM
  • Publication number: 20220231418
    Abstract: A reconfigurable antenna system is described which combines active and passive components used to impedance match, alter the frequency response, and change the radiation pattern of an antenna. Re-use of components such as switches and tunable capacitors make the circuit topologies more space and cost effective, while reducing complexity of the control signaling required. Antenna structures with single and multiple feed and/or ground connections are described and active circuit topologies are shown for these configurations. A processor and algorithm can reside with the antenna circuitry, or the algorithm to control antenna optimization can be implemented in a processor in the host device.
    Type: Application
    Filed: February 7, 2022
    Publication date: July 21, 2022
    Inventors: Laurent Desclos, Chun-Su Yoon
  • Patent number: 11245189
    Abstract: A reconfigurable antenna system is described which combines active and passive components used to impedance match, alter the frequency response, and change the radiation pattern of an antenna. Re-use of components such as switches and tunable capacitors make the circuit topologies more space and cost effective, while reducing complexity of the control signaling required. Antenna structures with single and multiple feed and/or ground connections are described and active circuit topologies are shown for these configurations. A processor and algorithm can reside with the antenna circuitry, or the algorithm to control antenna optimization can be implemented in a processor in the host device.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 8, 2022
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Chun-Su Yoon
  • Patent number: 11018421
    Abstract: A communication system is provided, including an antenna, a matching network coupled to the antenna, a controller configured to control the matching network, and a look-up table coupled to the controller. The look-up table includes characterization data according to frequency bands and conditions. The controller is configured to refer to the look-up table to determine optimum impedance for a frequency band selected under a condition detected during a time interval, and adjust the matching network to provide the optimum impedance.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 25, 2021
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Alexandre Dupuy, Chun-Su Yoon
  • Publication number: 20190296436
    Abstract: A reconfigurable antenna system is described which combines active and passive components used to impedance match, alter the frequency response, and change the radiation pattern of an antenna. Re-use of components such as switches and tunable capacitors make the circuit topologies more space and cost effective, while reducing complexity of the control signaling required. Antenna structures with single and multiple feed and/or ground connections are described and active circuit topologies are shown for these configurations. A processor and algorithm can reside with the antenna circuitry, or the algorithm to control antenna optimization can be implemented in a processor in the host device.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 26, 2019
    Inventors: Laurent Desclos, Chun-Su Yoon
  • Patent number: 10355358
    Abstract: A reconfigurable antenna system is described which combines active and passive components used to impedance match, alter the frequency response, and change the radiation pattern of an antenna. Re-use of components such as switches and tunable capacitors make the circuit topologies more space and cost effective, while reducing complexity of the control signaling required. Antenna structures with single and multiple feed and/or ground connections are described and active circuit topologies are shown for these configurations. A processor and algorithm can reside with the antenna circuitry, or the algorithm to control antenna optimization can be implemented in a processor in the host device.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: July 16, 2019
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Chun-Su Yoon
  • Publication number: 20190190141
    Abstract: A communication system is provided, including an antenna, a matching network coupled to the antenna, a controller configured to control the matching network, and a look-up table coupled to the controller. The look-up table includes characterization data according to frequency bands and conditions. The controller is configured to refer to the look-up table to determine optimum impedance for a frequency band selected under a condition detected during a time interval, and adjust the matching network to provide the optimum impedance.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 20, 2019
    Inventors: Laurent Desclos, Alexandre Dupuy, Chun-Su Yoon
  • Patent number: 10224625
    Abstract: A communication system is provided, including an antenna, a matching network coupled to the antenna, a controller configured to control the matching network, and a look-up table coupled to the controller. The look-up table includes characterization data according to frequency bands and conditions. The controller is configured to refer to the look-up table to determine optimum impedance for a frequency band selected under a condition detected during a time interval, and adjust the matching network to provide the optimum impedance.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: March 5, 2019
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Alexandre Dupuy, Chun-Su Yoon
  • Patent number: 9859617
    Abstract: An antenna methodology where a set of antennas are formed that take the shape of a mobile wireless device and can be integrated into the outer housing of the mobile device. Tuning points are integrated into the design to provide the capability to compensate for hand effects and loading while the mobile device and antenna are touched by the user. The body then becomes a part of the antenna and acts as an anchor for the poles within the matching circuit. These antennas are actively tuned based on detection criteria while dynamically tracking system performance. The structure is based on a loaded loop coupled to an isolated magnetic dipole (IMD) element. The loop is actively tuned according to design rules residing in a processor in the mobile device.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: January 2, 2018
    Assignee: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Sung-Soo Nam, Ji-Chul Lee, Sung Hawan, Chun-Su Yoon
  • Publication number: 20170256852
    Abstract: A communication system is provided, including an antenna, a matching network coupled to the antenna, a controller configured to control the matching network, and a look-up table coupled to the controller. The look-up table includes characterization data according to frequency bands and conditions. The controller is configured to refer to the look-up table to determine optimum impedance for a frequency band selected under a condition detected during a time interval, and adjust the matching network to provide the optimum impedance.
    Type: Application
    Filed: December 21, 2016
    Publication date: September 7, 2017
    Inventors: Laurent Desclos, Alexandre Dupuy, Chun-Su Yoon
  • Patent number: 9755305
    Abstract: An active antenna and associated circuit topology is adapted to provide active impedance matching and band switching of the antenna using a shared tunable component. Using a shared tunable component, such as a tunable capacitor or other tunable component, the antenna provides a low cost and effective active antenna solution. In certain embodiments, one or more passive components can be further utilized to design band switching of the antenna from a first frequency to a second desired frequency.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: September 5, 2017
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Chun Su Yoon, Sung-soo Nam, M K Chun, Ji-Chul Lee
  • Patent number: 9692122
    Abstract: An active antenna system and algorithm is described that provides for dynamic tuning and optimization of antenna system parameters for a MIMO system where correlation and isolation between antennas in the system are dynamically altered to provide for greater throughput. As one or multiple antennas are loaded or de-tuned due to environmental changes, corrections to correlation and/or isolation are made by selecting the optimal antenna radiation pattern and by adjusting electrical length and/or reactive loading of transmission lines connecting the antennas. Multiple Isolated Magnetic Dipole (IMD) antennas are co-located and connected with a feed network that can include switches that adjust phase length for transmission lines connecting the antennas. Filtering is integrated into the feed network to improve rejection of unwanted frequencies. Filtering can also be implemented on the antenna structure.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: June 27, 2017
    Assignee: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Jeffrey Shamblin, Sung-Su Nam, Sung Hawan, Ji-Chul Lee, Chun-Su Yoon
  • Publication number: 20160036127
    Abstract: A reconfigurable antenna system is described which combines active and passive components used to impedance match, alter the frequency response, and change the radiation pattern of an antenna. Re-use of components such as switches and tunable capacitors make the circuit topologies more space and cost effective, while reducing complexity of the control signaling required. Antenna structures with single and multiple feed and/or ground connections are described and active circuit topologies are shown for these configurations. A processor and algorithm can reside with the antenna circuitry, or the algorithm to control antenna optimization can be implemented in a processor in the host device.
    Type: Application
    Filed: March 19, 2014
    Publication date: February 4, 2016
    Applicant: ETHERTRONICS, INC.
    Inventors: Laurent DESCLOS, Chun-Su YOON
  • Publication number: 20140306859
    Abstract: An active antenna and associated circuit topology is adapted to provide active impedance matching and band switching of the antenna using a shared tunable component. Using a shared tunable component, such as a tunable capacitor or other tunable component, the antenna provides a low cost and effective active antenna solution. In certain embodiments, one or more passive components can be further utilized to design band switching of the antenna from a first frequency to a second desired frequency.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Applicant: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Chun Su Yoon, Sung-soo Nam, MK Chun, Ji-Chul Lee