Patents by Inventor Ki Chang

Ki Chang 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: 20230191954
    Abstract: Disclosed are an apparatus and a method for controlling a vehicle seat so as to control a seat back and a neck pillow based on a sound. The apparatus includes the vehicle seat installed in a vehicle and including a seat back and a neck pillow, a detector for detecting vehicle information and seat information, and a processor connected to the vehicle seat and the detector, wherein the processor determines a vehicle state and a seat sitting posture based on the vehicle information and the seat information, analyzes a sound being reproduced in the vehicle, determines a haptic pattern and a haptic pressure based on the vehicle state and the seat sitting posture, and the analysis of the sound, and controls the seat back and the neck pillow based on the determined haptic pattern and haptic pressure to provide a haptic effect.
    Type: Application
    Filed: August 3, 2022
    Publication date: June 22, 2023
    Inventors: Ki Chang Kim, Tae Kun Yun, Dong Chul Park, Kyoung Jin Chang, Eun Soo Jo, Jin Sung Lee
  • Publication number: 20230197989
    Abstract: Provided are a recovery control system of a fuel cell and a method thereof. The recovery control system includes the fuel cell, a hydrogen supplier configured to supply hydrogen to the fuel cell, an air supplier configured to supply air to the fuel cell, an abnormality sensing unit configured to calculate a difference between a reference cell voltage predetermined depending on an output current of the fuel cell and a measured cell voltage of unit cells and to sense abnormality of air supply to a fuel cell stack based on the calculated difference between the reference cell voltage and the measured cell voltage or change in the difference, and a recovery controller configured to control the air supplier so as to increase a flow rate of air supplied to the fuel cell stack based on the change in the difference, when the abnormality sensing unit senses abnormality of air supply.
    Type: Application
    Filed: August 24, 2022
    Publication date: June 22, 2023
    Inventors: Seung Won Baik, Ki Chang Kim
  • Publication number: 20230186781
    Abstract: A virtual driving simulation device and a method for improving a sensation of immersion therefore that may improve the sensation of immersion for a driving simulation in a virtual environment includes a microphone for measuring a 3D sound, and a processor that is configured to record the 3D sound through the microphone, analyze a sound realization influence by reproducing the recorded 3D sound through higher-order ambisonics (HOA) encoding and HOA decoding, and realize the sensation of immersion based on a result of analyzing the sound realization influence.
    Type: Application
    Filed: August 16, 2022
    Publication date: June 15, 2023
    Inventors: Ki Chang Kim, Dong Chul Park, Eun Soo Jo, Tae Kun Yun
  • Publication number: 20230189527
    Abstract: A semiconductor integrated circuit device including a semiconductor substrate, a first transistor, an insulation interlayer and a second transistor. The first transistor formed on the semiconductor substrate. The first transistor includes a horizontal channel substantially parallel to a surface of the semiconductor substrate. The insulating interlayer formed on an upper surface of the semiconductor substrate. A contact hole formed through the insulating interlayer. The second transistor including a channel layer formed in the contact hole. Any one of a source and a drain of the second transistor are electrically connected to any one of electrodes of the first transistor.
    Type: Application
    Filed: May 5, 2022
    Publication date: June 15, 2023
    Applicant: SK hynix Inc.
    Inventors: Ki Chang JEONG, Nam Kuk KIM
  • Publication number: 20230185517
    Abstract: Embodiments of the present disclosure relate to a sensory experience providing apparatus for providing a sensory experience based on sound in a vehicle, and a method thereof. The controller is configured to receive a sound played in the vehicle, extract a sound feature from the received sound, generate sensory information based on the extracted sound feature, and provide a sensory experience based on the sensory information.
    Type: Application
    Filed: August 3, 2022
    Publication date: June 15, 2023
    Inventors: Ki Chang Kim, Dong Chul Park
  • Publication number: 20230186894
    Abstract: Disclosed is a sound design method for overcoming sense of difference when there is no virtual sound while an auto cruise control is activated. The method includes determining whether an accelerator pedal is actuated; upon determining that the accelerator pedal is not actuated, determining whether an auto cruise control system is operating; upon determining whether the auto cruise control system is operating, classifying a vehicle speed-based order component from a driving sound; and reproducing a speed sensitive virtual sound based on the classified vehicle speed-based order component.
    Type: Application
    Filed: August 16, 2022
    Publication date: June 15, 2023
    Inventors: Ki Chang Kim, Tae Kun Yun, Dong Chul Park, Eun Soo Jo, Jin Sung Lee
  • Publication number: 20230186893
    Abstract: An apparatus and a method for controlling a vehicle sound are provided. The apparatus a detection device that detects driving information and drive mode setting information and a processing device electrically connected with the detection device. The processing device determines an emotional state of a driver based on at least one of the driving information or the drive mode setting information, determines a sound concept depending on the emotional state of the driver, and controls a vehicle sound depending on the sound concept.
    Type: Application
    Filed: May 25, 2022
    Publication date: June 15, 2023
    Inventors: Ki Chang Kim, Dong Chul Park, Myung Hwan Yun, Sung Ho Kim
  • Publication number: 20230175609
    Abstract: A leakage blocking device of a valve is disclosed. When a fluid flowing in a flow path 11 leaks through a gap between the outer circumferential surface of a valve stem bottom (21) and a bottom guide hole (31), a plug 53 of a piston 50 is pushed into a sealing oil chamber 45 by a pressure P1 of the leaked fluid acting on a bottom pressure acting surface S1 of the piston and pressurizes a sealing oil L in the sealing oil chamber 45 to a pressure P2 higher than the pressure P1 of the leaked fluid, thereby blocking leakage of fluid of the valve.
    Type: Application
    Filed: September 7, 2020
    Publication date: June 8, 2023
    Inventor: Ki Chang KO
  • Patent number: 11658318
    Abstract: A control method for a fuel cell stop mode is provided. The method includes measuring an air flow rate supplied to a fuel cell stack and when a fuel cell stop mode is entered, determining an oxygen distribution state between cells included in the fuel cell stack based on the measured air flow rate. Air supply is then supplied to the fuel cell stack or the air supply to the fuel cell stack is interrupted based on the determined oxygen distribution state.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 23, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ki Chang Kim, Soon Woo Kwon, Young Pin Jin
  • Publication number: 20230146799
    Abstract: A sound generation apparatus for an electrification vehicle and a method of use thereof are provided. In example embodiments, the sound generation apparatus receives driving information, determines a driving situation based on the driving information, designs an acceleration sound when the driving situation is determined as an acceleration situation, or designs a cornering sound when the driving situation is determined as a cornering situation, and plays and outputs the acceleration sound or the cornering sound.
    Type: Application
    Filed: June 29, 2022
    Publication date: May 11, 2023
    Inventors: Ki Chang Kim, Tae Kun Yun, Dong Chul Park, Eun Soo Jo, Jin Sung Lee
  • Publication number: 20230147411
    Abstract: A device and a method for controlling a seat of a vehicle includes a detector for detecting vehicle environment information, a vibration generator mounted on the vehicle seat to generate the seat vibration, and a controller electrically connected to the detector and the vibration generator, and the controller detects seat environment information through the detector, determines a weight and a sitting posture of a user seated in the vehicle seat based on the seat environment information, determines a vibration pattern and a vibration excitation force based on the weight and the sitting posture of the user, and generates the seat vibration by controlling the vibration generator based on the determined vibration pattern and vibration excitation force.
    Type: Application
    Filed: July 11, 2022
    Publication date: May 11, 2023
    Inventors: Ki Chang Kim, Dong Chul Park, Tae Kun Yun, Sang Jin Hong
  • Patent number: 11631304
    Abstract: An apparatus for generating a virtual effect of an electric vehicle includes: a driving information detector configured to detect vehicle driving information in the electric vehicle; a controller configured to determine a characteristic of the virtual effect based on the vehicle driving information detected by the driving information detector, and configured to generate a virtual effect producing signal for producing the determined characteristic of the virtual effect; and a vibration actuator provided in a seat of the electric vehicle such that when the vibration actuator operates, a driver or a passenger who is in the seat experiences vibration, the vibration actuator being controlled by the virtual effect producing signal generated by the controller, so as to produce the vibration according to the determined characteristic of the virtual effect.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: April 18, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ki Chang Kim, Dong Chul Park, Tae Kun Yun, Sang Jin Hong
  • Patent number: 11628838
    Abstract: Disclosed are a method of improving fuel efficiency of a fuel cell electric vehicle, and an apparatus and a system therefor. The method includes collecting navigation information and vehicle speed information, calculating a coasting line when a specified event point is detected based on the navigation information, determining whether deceleration is necessary by comparing a current traveling speed with a coasting line speed corresponding to a current location, and changing a criterion for determining whether to enter a fuel cell stop (FC STOP) state when the deceleration is necessary as a determination result.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: April 18, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ki Chang Kim, Soon Oh Kwon, Young Woo Jung, Yu Han Kim
  • Patent number: 11628767
    Abstract: A method of playing a virtual after-burn sound in an electric vehicle is provided. The method includes acquiring driver tendency information generated based on information of music played in a mobile phone and collecting driving variable information for playing a virtual sound during operation of the electric vehicle. Additionally, characteristics of a virtual after-burn sound are determined based on the collected driving variable information. The characteristics of the virtual after-burn sound are corrected according to the acquired driver tendency information. An after-burn signal is generated for playing the virtual after-burn sound based on information about the corrected characteristics of the virtual after-burn sound and operation of sound equipment is adjusted according to the created after-burn signal such that a virtual after-burn sound discriminated according to the driver tendency is played and output from the sound equipment.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: April 18, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ki Chang Kim, Jin Sung Lee, Jeong Soo Eo, Dong Chul Park, Tae Kun Yun, Ji Won Oh
  • Patent number: 11623583
    Abstract: A structure for mounting an electronic sound generator (ESG) in a vehicle includes: an ESG located inside a cowl space of a vehicle body; and a mounting bracket formed to fix the ESG to members defining the cowl space. In particular, the mounting bracket includes a plurality of fixation parts fixed to the members defining the cowl space and a mounting part to which the ESG is fixed.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: April 11, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Ki Chang Kim
  • Patent number: 11614208
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; light sources disposed on the substrate; and a resin layer disposed on the substrate and the light sources. a first reflective layer disposed on the resin layer, wherein the resin layer includes an exit surface facing the light sources, and the exit surface of the resin layer includes convex portions facing each of the light sources and recess portions respectively disposed between the plurality of convex portions, concave surfaces disposed in each of the plurality of recess portions may have a curvature, and a radius of curvature of the concave surfaces may increase in one direction.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 28, 2023
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Young Jae Choi, Dong Hyun Lee, Ki Chang Lee, Gyeong Il Jin, Moo Ryong Park
  • Publication number: 20230064483
    Abstract: An apparatus for generating a driving sound in a vehicle includes a first conversion device that receives first sound information and converts the received first sound information into second sound information, a second conversion device that converts the second sound information into third sound information based on a conversion parameter, a storage that receives feedback information of a user about the third sound information and corrects and stores the third sound information, and a playback device that plays the stored third sound information
    Type: Application
    Filed: May 16, 2022
    Publication date: March 2, 2023
    Inventors: Ki Chang Kim, Jin Sung Lee, Dong Chul Park, Eun Soo Jo, Sang Jin Hong
  • Publication number: 20230057960
    Abstract: A tiled display device may include a first panel including a first display element layer; a second panel including a second display element layer; and a shared layer including a color conversion part. The shared layer may include a first portion and a second portion. The first portion may overlap the first panel in a plan view. The second portion may overlap the second panel in a plan view. The color conversion part may change a wavelength of light provided from the first panel and the second panel.
    Type: Application
    Filed: July 21, 2022
    Publication date: February 23, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jong Moo HUH, Jin Wook JEONG, Sun PARK, Ki Chang EOM, Gwang Geun LEE
  • Publication number: 20230036318
    Abstract: Disclosed are a device and a method for improving the fuel efficiency of a fuel cell vehicle in uphill and downhill driving. The device may calculate an appropriate stack output to be generated from a fuel cell stack based on the SOC of a battery as well as an uphill altitude at which the vehicle traveling on the uphill road has to travel further to reach the highest altitude when determining the degree of the stack output generated from the fuel cell stack when driving on the uphill road, and may prevent fuel consumption from increasing to generate excessive stack output while driving on an uphill road or the durability of the fuel cell stack from being deteriorated.
    Type: Application
    Filed: April 28, 2022
    Publication date: February 2, 2023
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventor: Ki Chang KIM
  • Publication number: 20230016272
    Abstract: A virtual sound provision apparatus for an electric vehicle includes a driving information detector configured to detect vehicle driving information for outputting a virtual driving sound, a microphone configured to detect an actual driving sound generated from the electric vehicle, a controller configured to determine a characteristic of a target sound based on an acceleration and deceleration driving pattern of a driver from an accelerator pedal input value and a brake pedal input value of the driver, and generating and outputting a sound control signal for outputting the virtual driving sound having the characteristic of the target sound based on the determined characteristic information of the target sound and characteristic information of the actual driving sound, and a sound device configured to output a virtual engine sound that simulates an engine sound from the electric vehicle at the time of acceleration and deceleration according to the sound control signal.
    Type: Application
    Filed: May 16, 2022
    Publication date: January 19, 2023
    Inventors: Ki Chang Kim, Jin Sung Lee, Ji Won Oh, Dong Chul Park, Kyoung Jin Chang, Tae Kun Yun, Jeong Soo Eo