Patents by Inventor Sung Kyu Kim

Sung Kyu Kim 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: 20150013574
    Abstract: The present invention relates to an automated teller machine having an EPP guard cave formed therein. More particularly, the present invention relates to an automated teller machine having an EPP guard cave formed therein, in which the EPP guard cave is recessively formed on the front surface of the automated teller machine toward the inside thereof and an encrypting pin pad (EPP) is installed inside the EPP guard cave formed as such, so that a user may conveniently use the automated teller machine without anxiety by effectively preventing the procedure of inputting personal information by the user from being exposed to surroundings or other people through a concaved structure without a separate structure such as an EPP guard plate since the user may put a hand into the EPP guard cave and input the personal information through the EPP when the user inputs the personal information through the EPP for a banking transaction.
    Type: Application
    Filed: December 19, 2013
    Publication date: January 15, 2015
    Applicant: Nautilus Hyosung Inc.
    Inventors: Chan Won Park, Sung Kyu KIM, Du Yong MOH, Dong Hee LEEM, Jae Min CHA
  • Publication number: 20150015681
    Abstract: The present invention relates to a 3D image display device and includes an image display panel for displaying a 3D image, a control unit for controlling a viewpoint image, and a viewer position tracking system for determining the position of a viewer's pupil and transmitting positional information to the control unit, wherein the image display panel provides multiple viewpoints such as four or more viewpoints, and the intersection of the viewing zone for any one of the multiple viewpoints with the field of view of an adjacent viewpoint is at least 85% of the maximum brightness of one viewpoint.
    Type: Application
    Filed: August 8, 2012
    Publication date: January 15, 2015
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Kyu Kim, Ki Hyuk Yoon
  • Publication number: 20150014019
    Abstract: Provided are a three-phase coaxial superconducting power cable and a structure thereof. A certain space is formed between adjacent superconducting wires of a superconducting layer (disposed at an outer portion) having more superconducting wires among a plurality of superconducting layers, and another wire is disposed in the space, or the superconducting wires of the respective superconducting layers are disposed to have different critical currents. Accordingly, a waste of superconducting wires is prevented, and the optimized three-phase coaxial superconducting power cable is provided.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventors: Min Won PARK, In Keun YU, Sang Jin LEE, Sung Kyu KIM, Sun Kyoung HA
  • Publication number: 20140369075
    Abstract: A system and a method for controlling a DC-DC converter include a microcomputer for deriving an input limiting current value by dividing an input limiting power value by an input voltage value. A conversion circuit scales the input limiting current value to a limiting voltage value. A voltage control circuit derives a control voltage value based on an output voltage value and a reference voltage value and defines the limiting voltage value as a control voltage limiting value. A current control circuit generates a pulse width modulation (PWM) control signal based on the control voltage value.
    Type: Application
    Filed: September 10, 2013
    Publication date: December 18, 2014
    Applicant: Hyundai Motor Company
    Inventors: Won Kyoung CHOI, Hui Sung JANG, Sung Kyu KIM, Mu Shin KWAK, Hyun Wook SEONG, Su Hyun BAE
  • Patent number: 8912736
    Abstract: Disclosed is a DC/DC converter system that, after calculating required voltages of the first and second motors based on the magnetic flux and speeds of the first and second motors, the voltage supplied to inverters is controlled by a final voltage command determined as a larger value of the battery voltage and the final required voltage. In particular, the final required voltage is determined as a larger value of the required voltages of the first and second motors.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 16, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Kyu Kim, Wonkyoung Choi, Mu Shin Kwak, Suhyun Bae
  • Patent number: 8907613
    Abstract: Disclosed are a system and a method for controlling a motor of an electric vehicle. In particular, an output voltage from a battery used to provide power to a motor of an electric vehicle, a speed and a torque of the motor are used to generate a magnetic flux based current control map. A current control command is then generated using the magnetic flux based current control map.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: December 9, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Kyu Kim, Wonkyoung Choi, Mu Shin Kwak, Suhyun Bae
  • Publication number: 20140333678
    Abstract: Disclosed is an image display apparatus for switching a two-dimensional (2D) mode and a three-dimensional (3D) mode. The image display apparatus includes a display panel in which pixels are arranged, a back light line source arranged so as to be spaced apart from the display panel, a fixed light diffusion plate arranged between the display panel and the back light line source, and a control unit controlling to switch the 2D mode and the 3D mode, wherein 3D line sources forming at least one set are arranged in the back light line source so as to be spaced apart from each other at regular intervals, and a 2D line source is arranged between the 3D line sources arranged so as to be spaced apart from each other.
    Type: Application
    Filed: December 6, 2013
    Publication date: November 13, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Kyu KIM, Ki Hyuk YOON
  • Publication number: 20140232837
    Abstract: Disclosed is a multi-view three-dimensional (3D) image display apparatus using a modified common viewing zone. The multi-view 3D image display apparatus may use a modified common viewing zone between a central viewing zone (common viewing zone) of the multi-view 3D image display apparatus and a central viewing zone (parallel viewing zone) of a 3D image display apparatus employing an integral photography method, or form a common viewing zone at an optimum viewing distance (OVD) of the multi-view 3D image display apparatus and use a modified common viewing zone in an area beyond the OVD.
    Type: Application
    Filed: December 5, 2013
    Publication date: August 21, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung Kyu KIM, Ki Hyuk YOON
  • Patent number: 8810228
    Abstract: The present invention relates to a method for compensating a current of a DC/DC converter that detects an average value of a pulsatory current that is output as a chopping wave form from an inductor that is used in a DC/DC converter to compensate an offset value in real time. A method for compensating a current of a DC/DC converter can include analyzing a PWM signal for a switching DC-DC converter, if the PWM signal is on, comparing a delay time with a rise half cycle size between a detected current and a real current that is output by an inductor, calculating a current variation amount and determining an offset compensation value for compensating a current variation amount according to the comparison result of the rise half cycle size and the delay time, and applying the offset compensation value to compensate the detected current of the inductor.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: August 19, 2014
    Assignee: Hyundai Motor Company
    Inventors: Sung Kyu Kim, Wonkyoung Choi, Mu Shin Kwak, Suhyun Bae
  • Publication number: 20140183941
    Abstract: A fail-safe method and apparatus for high voltage parts in a hybrid vehicle is provided. In the fail-safe method, it is determined whether or not a high voltage main relay is turned off. Here, when the high voltage main relay is turned off, a voltage is charged into a direct current (DC) link using a counter electromotive force generated in a motor generator linked with a revolution of an engine. Voltage control is performed such that the voltage of the DC link is uniformly maintained using an inverter for the motor generator.
    Type: Application
    Filed: November 21, 2013
    Publication date: July 3, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Su Hyun Bae, Young Kook Lee, Seong Yeop Lim, Won Kyoung Choi, Sung Kyu Kim, Jin Hwan Jung, Mu Shin Kwak
  • Publication number: 20140138788
    Abstract: Various aspects of the present disclosure provide a semiconductor device, for example comprising a finger print sensor, and a method for manufacturing thereof. Various aspects of the present disclosure may, for example, provide an ultra-slim finger print sensor having a thickness of 500 ?m or less that does not include a separate printed circuit board (PCB), and a method for manufacturing thereof.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 22, 2014
    Applicant: Amkor Technology, Inc.
    Inventors: Jin Young Kim, No Sun Park, Yoon Joo Kim, Seung Jae Lee, Se Woong Cha, Sung Kyu Kim, Jo Hoon Yoon
  • Publication number: 20140103843
    Abstract: Provided is an inverter control system and method for an eco-friendly vehicle, by which overall improvements can be obtained in terms of switching loss, electromagnetic performance, noise-vibration-harshness (NVH) performance, control stability, and so forth, when compared to a conventional case in which one fixed switching frequency and one fixed sampling frequency are used over the entire operation area. To this end, the inverter control method for an eco-friendly vehicle which generates a pulse width modulation (PWM) signal according to a switching frequency and a sampling frequency and controls ON/OFF driving of a switching element, in which a controller changes and sets the switching frequency according to a current motor speed, changes and sets a sampling frequency according to the switching frequency, and controls on/off driving of a switching element according to the switching frequency corresponding to the motor speed and the sampling frequency.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 17, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Su Hyun Bae, Won Kyoung Choi, Sung Kyu Kim, Mu Shin Kwak
  • Publication number: 20140103854
    Abstract: Disclosed is an inverter control system and method for an eco-friendly vehicle, by which overall improvements can be obtained in terms of switching loss, electromagnetic performance, noise-vibration-harshness (NVH) performance, control stability, and so forth, when compared to a conventional case in which one fixed switching frequency and one fixed sampling frequency are used over the entire operation area. To this end, the inverter control method for an eco-friendly vehicle which generates a pulse width modulation (PWM) signal according to a switching frequency and a sampling frequency and controls ON/OFF driving of a switching element, in which a controller changes and sets the switching frequency according to a current motor speed, changes and sets a sampling frequency according to the switching frequency, and controls on/off driving of a switching element according to the switching frequency corresponding to the motor speed and the sampling frequency.
    Type: Application
    Filed: December 17, 2012
    Publication date: April 17, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Su Hyun Bae, Won Kyoung Choi, Sung Kyu Kim, Mu Shin Kwak
  • Patent number: 8690422
    Abstract: The present invention provides a method for measuring the temperature of a motor for a hybrid electric vehicle. In preferred embodiments, the method of the present invention can preferably ensure the stability and reliability of motor control by extending the linearity of a temperature sensor attached to the motor within a required measurement range. The present invention preferably provides a method for measuring the temperature of a motor for a hybrid electric vehicle, in which a required measurement range of motor temperature is divided into high and low temperature ranges and a hardware gain circuit is divided into first and second gain blocks such that the first gain block measures the temperature of the high temperature range and the second gain block measures the temperature of the low temperature range.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 8, 2014
    Assignee: Hyundai Motor Company
    Inventors: Chul Woo Kim, Bum Sik Kim, Tae Hwan Chung, Young Kook Lee, Jin Hwan Jung, Sang Hyeon Moon, Sung Kyu Kim, Jae Won Lee
  • Patent number: 8686671
    Abstract: The present invention provides a method for compensating nonlinearity of a resolver to control a motor in hybrid and fuel cell vehicles, thereby stably controlling the motor current during high-torque and high-speed operation. In preferred aspects, the present invention provides a method for compensating nonlinearity of a resolver to control a motor in hybrid and fuel cell vehicles, the method including collecting resolver position data; determining whether to perform resolver position correction in the corresponding vehicle; and compensating nonlinearity of the resolver based on the collected resolver position data, if it is determined that the resolver position correction is not performed.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: April 1, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Woo Yong Jeon, Shin Hye Chun, Won Kyoung Choi, Bum Sik Kim, Young Kook Lee, Jin Hwan Jung, Sang Hyeon Moon, Sung Kyu Kim
  • Publication number: 20140077366
    Abstract: A wafer level fan-out package with a fiducial die is disclosed and may include a semiconductor die and a transparent fiducial die both encapsulated in a molding compound resin, passivation layers on an upper surface and a lower surface of the molding compound resin except where redistribution layers are formed on upper and lower surfaces of the molding compound resin, and a metal pattern on a lower surface of the transparent fiducial die that is visible through an exposed upper surface of the transparent fiducial die. The pattern may comprise a standard coordinate for forming a through mold via utilizing laser drilling.
    Type: Application
    Filed: August 9, 2013
    Publication date: March 20, 2014
    Inventors: Sung Kyu Kim, Jin Young Kim, Yoon Joo Kim, Jin Han Kim, Seung Jae Lee, Se Woong Cha, Jae Hun Bae, Dong Jin Kim, Won Myoung Ki
  • Patent number: 8663388
    Abstract: Disclosed are a single crystal wire and other single crystal articles, and a manufacturing method thereof. The method comprises the steps of: placing into a growth crucible at least one metal selected from the group consisting of gold, copper, silver, aluminum and nickel; heating and melting the metal placed in the growth crucible; growing a single crystal using metal crystal as a seed by Czochralski or Bridgman method; cutting the grown single crystal by electric discharge machining; and machining the cut single crystal and producing a wire or other articles such as a ring. In the method, the grown metal single crystal is cut into a disc-shaped piece by electric discharge machining. The piece is transformed into a single crystal wire or other articles by wire-cut electric discharge machining, and the single crystal wire can be used as a ring, a pendant, or a wire for high-quality cables for audio and video systems.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: March 4, 2014
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Se Young Jeong, Chae Ryong Cho, Sang Eon Park, Sung Kyu Kim
  • Publication number: 20140042600
    Abstract: A semiconductor package and manufacturing method thereof are disclosed and may include a first semiconductor device comprising a first bond pad on a first surface of the first semiconductor device, a first encapsulant material surrounding side edges of the first semiconductor device, and a redistribution layer (RDL) formed on the first surface of the first semiconductor device and on a first surface of the encapsulant material. The RDL may electrically couple the first bond pad to a second bond pad formed above the first surface of the encapsulant material. A second semiconductor device comprising a third bond pad on a first surface of the second semiconductor device may face the first surface of the first semiconductor device and be electrically coupled to the first bond pad on the first semiconductor device. The first surface of the first semiconductor device may be coplanar with the first surface of the encapsulant material.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Inventors: Jin Young Kim, No Sun Park, Yoon Joo Kim, Choon Heung Lee, Jin Han Kim, Seung Jae Lee, Se Woong Cha, Sung Kyu Kim, Glenn Rinne
  • Patent number: 8610711
    Abstract: The present invention relates to a autostereoscopic image display device capable of observing a natural three-dimensional image without crosstalk or pseudo-stereoscopic zone between optimal viewpoints and without using special glasses. The three-dimensional image display device of the present invention includes: a display panel configured to display image information of at least two viewpoints; an optical substrate that is separately disposed from the display panel at a predetermined distance, the optical substrate being configured to form at least one intermediate viewing zone between left and right viewing zones included in base viewing zones corresponding to two viewpoints, which are observed when a position of an observer moves horizontally; and a control unit configured to provide the image information corresponding to the respective viewpoints at the base viewing zones and remove image information from the at least one intermediate viewing zone.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: December 17, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Sung Kyu Kim, Jinwook Kim, Seon Kyu Yoon
  • Publication number: 20130328508
    Abstract: Disclosed is a method for controlling a permanent magnet synchronous motor to maximize use of voltages of a battery by voltage phase control within weak magnetic flux area and to achieve compensation for a torque error through a torque compensator when driving the permanent magnet synchronous motor for hybrid vehicles. In particular, the method controls a permanent magnet synchronous motor so that voltage use can be maximized in a weak magnetic flux area by using voltage near maximum voltage through voltage phase control utilizing magnetic flux-based map data receiving a torque command and motor speed/batter output voltage as inputs and torque error can be compensated using a torque compensation filter when a motor constant is changed in the weak magnetic flux by a circumstance parameter, when the permanent magnet synchronous motor mounted in a hybrid vehicle and an electric vehicle is driven.
    Type: Application
    Filed: October 17, 2012
    Publication date: December 12, 2013
    Applicants: Hyundai Motor Company, Industry-Academic Cooperation Foundation, Yeungnam University, Kia Motors Corporation
    Inventors: Su Hyun Bae, Sung Kyu Kim, Won Kyoung Choi, Mu Shin Kwak, Jul Ki Seok, Se Hwan Kim