Patents by Inventor Yonghwan Hwang

Yonghwan 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).

  • Patent number: 11180087
    Abstract: A vehicle and a method of controlling the vehicle are provided. The vehicle may include: a speaker configured to output a sound into the vehicle; a detector configured to measure internal environment information representing an environment inside the vehicle and a noise factor determining a noise generated in the vehicle; and a controller configured to determine a tuning value based on a type of sound, to adjust the tuning value to correspond to at least one of the internal environment information or the noise factor, to adjust the sound by adjusting at least one of a size or a phase based on the adjusted tuning value, and to control the speaker to output the adjusted sound.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 23, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yonghwan Hwang
  • Patent number: 11183053
    Abstract: A vehicle may include a speaker; a display; a plurality of microphones configured to receive sound waves outside the vehicle; and a controller connected to the speaker, the display, and the plurality of microphones, and configured to determine sound wave characteristics of a terrain around a road on which the vehicle travels, based on map information, to determine a direct wave and a reflected wave of the received sound waves based on the terrain, the determined sound wave characteristics of the terrain, and the received sound waves, to determine a position and a velocity of an object that has generated the received sound waves based on the direct wave and the reflected wave, and to control at least one of the speaker and the display to output information on the position and the velocity of the object.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: November 23, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yonghwan Hwang
  • Patent number: 11153679
    Abstract: A broadband speaker includes: a first vibration plate configured to operate in a high frequency band, a second vibration plate disposed coaxially outside the first vibration plate, a first voice coil connected to the first vibration plate to vibrate the first vibration plate, a second voice coil disposed coaxially outside the first voice coil and connected to the second vibration plate, a magnet assembly configured to form a magnetic field, an amplifier configured to apply a first output signal of a high frequency band to the first voice coil and a second output signal of a frequency band lower than that of the first output signal to the second voice coil, and a controller configured to control the amplifier to apply a signal for suppressing vibration of the second vibration plate to the second voice coil when the first output signal is applied to the first voice coil.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: October 19, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yonghwan Hwang
  • Publication number: 20210321200
    Abstract: A vibration speaker may include a vibration plate fixed to a housing, a vibrator mounted in the housing to vibrate in a vibration direction of the vibration plate and having a magnet forming a magnetic field, a voice coil member configured to vibrate the vibration plate through interaction of the magnet with the vibrator, and a vibration transmission member configured to support the voice coil member in a state of being fixed to an internal surface of the vibration plate and transmit vibration of the voice coil member to the vibration plate, wherein the vibration transmission member includes a spacing support portion fixed to the voice coil member to be spaced from the internal surface of the vibration plate, and a vibration transmission portion protruding from the spacing support portion to be fixed to the internal surface of the vibration plate.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 14, 2021
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Postech Academy-Industry Foundation
    Inventors: Youngbeom KIM, Minsik YANG, Yonghwan HWANG, Won Kyu MOON, Ingyu LEE
  • Publication number: 20210321195
    Abstract: A vehicle speaker system uses a speaker system of a personal mobility device including a main body configured to generate power with a battery, a steering unit connected to the main body to regulate a driving direction and in which a speaker is installed, wheels installed on the main body and the steering unit and rotated by power generated from the main body, and a controller configured to control the speaker, wherein the speaker generates a virtual engine sound when driving.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 14, 2021
    Inventor: Yonghwan Hwang
  • Publication number: 20210314709
    Abstract: A multilayer panel speaker includes a yoke having a bottom portion and a side portion, a first vibration panel fixed to the bottom portion and supported by a frame, and a second vibration panel fixed to the side portion. By using a multilayer panel, it is possible to improve high frequency and low frequency sensitivity in the multilayer panel speaker.
    Type: Application
    Filed: September 30, 2020
    Publication date: October 7, 2021
    Inventor: Yonghwan Hwang
  • Patent number: 11102598
    Abstract: A personal air vehicle (PAV) and a control method thereof are provided for compensating for distortion in a speaker due to changes in altitude. The. PAV provides communication through a speaker in an emergency. In particular, the PAV includes an air pressure sensor that is configured to sense external air pressure and a propulsion device that is configured to supply propulsion for flight. A speaker is provided and includes an enclosure having a preset internal air pressure. A controller is configured to adjust an acoustic signal supplied to the speaker based on a difference value between the external air pressure and the internal air pressure changing according to altitude.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 24, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Youngbeom Kim, Yonghwan Hwang
  • Publication number: 20210253036
    Abstract: A vehicle and a controlling method of the same include a speaker outputting virtual engine sound integrated with a head lamp. The vehicle includes the head lamp; a head lamp case in which the head lamp is provided; and a speaker for outputting a virtual engine sound, and provided inside the head lamp case, where an internal cross-sectional area of the head lamp case may increase in a direction toward a front of the vehicle based on a position where the speaker is provided.
    Type: Application
    Filed: September 21, 2020
    Publication date: August 19, 2021
    Inventor: Yonghwan Hwang
  • Publication number: 20210250714
    Abstract: A personal air vehicle (PAV) and a control method thereof are provided for compensating for distortion in a speaker due to changes in altitude. The. PAV provides communication through a speaker in an emergency. In particular, the PAV includes an air pressure sensor that is configured to sense external air pressure and a propulsion device that is configured to supply propulsion for flight. A speaker is provided and includes an enclosure having a preset internal air pressure. A controller is configured to adjust an acoustic signal supplied to the speaker based on a difference value between the external air pressure and the internal air pressure changing according to altitude.
    Type: Application
    Filed: September 22, 2020
    Publication date: August 12, 2021
    Inventors: Youngbeom Kim, Yonghwan Hwang
  • Publication number: 20210001781
    Abstract: A vehicle and a method of controlling the vehicle are provided. The vehicle may include: a speaker configured to output a sound into the vehicle; a detector configured to measure internal environment information representing an environment inside the vehicle and a noise factor determining a noise generated in the vehicle; and a controller configured to determine a tuning value based on a type of sound, to adjust the tuning value to correspond to at least one of the internal environment information or the noise factor, to adjust the sound by adjusting at least one of a size or a phase based on the adjusted tuning value, and to control the speaker to output the adjusted sound.
    Type: Application
    Filed: October 8, 2019
    Publication date: January 7, 2021
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yonghwan Hwang
  • Patent number: 10878792
    Abstract: A vehicle is provided and includes a first tire, a second tire, and a detector that is configured to detect an air pressure of the first tire. A vibration generator is configured to generate vibration in the second tire. A controller is configured to operate the vibration generator to cause the second tire vibrate when the air pressure of the first tire satisfies a predetermined normal condition.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: December 29, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jaehyuk Jang, Minsik Yang, Yonghwan Hwang, Young Kim, HyeonHee Kang
  • Patent number: 10820102
    Abstract: A vehicle and a method of controlling the vehicle are provided. The vehicle may include: a first subwoofer provided at a driver's seat side of the vehicle and having a first resonance frequency; a second subwoofer provided on a passenger seat side of the vehicle and having a second resonance frequency; and a controller configured to transmit an electrical signal corresponding to a play sound to the first subwoofer, to invert a phase of the electrical signal, and to transmit the inverted electrical signal to the second subwoofer.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 27, 2020
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventor: Yonghwan Hwang
  • Publication number: 20200258491
    Abstract: A vehicle is provided and includes a first tire, a second tire, and a detector that is configured to detect an air pressure of the first tire. A vibration generator is configured to generate vibration in the second tire. A controller is configured to operate the vibration generator to cause the second tire vibrate when the air pressure of the first tire satisfies a predetermined normal condition.
    Type: Application
    Filed: September 4, 2019
    Publication date: August 13, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Kia Motors Corporation
    Inventors: Jaehyuk Jang, Minsik Yang, Yonghwan Hwang, Young Kim, HyeonHee Kang
  • Patent number: 10733973
    Abstract: The present disclosure relates to a vehicle and a method for controlling thereof, and more particularly to a technique for removing noise generated in a vehicle air conditioner. The vehicle may include an air conditioner, comprising: a speaker configured to output sound; a blower fan configured to blow air that is heat-exchanged in the air conditioner; an air vent configured to regulate a discharge amount of the air discharged into the vehicle; and a controller configured to sense a noise acoustic signal of the blower fan that is determined corresponding to an opening degree of the air vent, and to control the speaker to to output by generating an acoustic signal having an opposite phase to the sensed noise acoustic signal.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 4, 2020
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Young Kim, Yonghwan Hwang, Jaehyuk Jang, Minsik Yang, HyeonHee Kang
  • Patent number: 10728670
    Abstract: A vehicle includes a power source, a first glass, a second glass provided on one side of the first glass, a first coil provided on the first glass, and a second coil provided on the second glass. A controller configured to determine a direction in which sound is to be output, to control the power source so that an AC current is applied to the first coil and a DC current is applied to the second coil when it is determined that the sound is to output to an inside direction of the vehicle, and to control the power source so that an AC current is applied to the second coil and a DC current is applied to the first coil when it is determined that the sound is to be output to an outside direction of the vehicle.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: July 28, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: HyeonHee Kang, Minsik Yang, Yonghwan Hwang, Jaehyuk Jang, Young Kim
  • Publication number: 20200193817
    Abstract: A vehicle may include a speaker; a display; a plurality of microphones configured to receive sound waves outside the vehicle; and a controller connected to the speaker, the display, and the plurality of microphones, and configured to determine sound wave characteristics of a terrain around a road on which the vehicle travels, based on map information, to determine a direct wave and a reflected wave of the received sound waves based on the terrain, the determined sound wave characteristics of the terrain, and the received sound waves, to determine a position and a velocity of an object that has generated the received sound waves based on the direct wave and the reflected wave, and to control at least one of the speaker and the display to output information on the position and the velocity of the object.
    Type: Application
    Filed: July 25, 2019
    Publication date: June 18, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yonghwan HWANG
  • Publication number: 20200193956
    Abstract: The present disclosure relates to a vehicle and a method for controlling thereof, and more particularly to a technique for removing noise generated in a vehicle air conditioner. The vehicle may include an air conditioner, comprising: a speaker configured to output sound; a blower fan configured to blow air that is heat-exchanged in the air conditioner; an air vent configured to regulate a discharge amount of the air discharged into the vehicle; and a controller configured to sense a noise acoustic signal of the blower fan that is determined corresponding to an opening degree of the air vent, and to control the speaker to to output by generating an acoustic signal having an opposite phase to the sensed noise acoustic signal.
    Type: Application
    Filed: August 26, 2019
    Publication date: June 18, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Young KIM, Yonghwan Hwang, Jaehyuk JANG, Minsik YANG, HyeonHee KANG
  • Publication number: 20200108780
    Abstract: A vehicle is provided. The vehicle includes a speaker configured to output virtual sound to an outside of the vehicle and convert noise generated from the outside into energy and a battery configured to store the energy converted by the speaker.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 9, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Yonghwan HWANG
  • Patent number: 10611315
    Abstract: A vehicle is provided. The vehicle includes a speaker configured to output virtual sound to an outside of the vehicle and convert noise generated from the outside into energy and a battery configured to store the energy converted by the speaker.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: April 7, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Yonghwan Hwang
  • Patent number: 10484790
    Abstract: Disclosed is a speaker device for a vehicle capable of directing sounds in a wide frequency range. The speaker device includes: a speaker unit, and an acoustic reflector unit provided on an upper portion of the speaker unit. In particular, the acoustic reflector unit includes a plurality of acoustic reflectors having different curvatures, and the plurality of acoustic reflectors are provided to be stacked on one another.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 19, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Byoungyoon Kim, Yonghwan Hwang