Patents by Inventor Sang Sik Jeong

Sang Sik Jeong 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: 20240146229
    Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Inventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin
  • Publication number: 20240128109
    Abstract: An apparatus for manufacturing a semiconductor device includes a substrate transfer unit configured to transfer a substrate, a rail unit including a driving rail extending in a first direction that the substrate transfer unit moves and a stopper on a side of the driving rail in a second direction crossing the first direction, and a lifting unit configured to move in the first direction and a third direction perpendicular to the first and second directions to remove the substrate transfer unit from the rail unit, wherein the lifting unit is configured to contact the stopper to move the stopper from a closed state to an open state.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 18, 2024
    Inventors: Ji Hun Kim, Youn Gon Oh, Woo-Ram Moon, Sang Hyuk Park, Jong Hun Lee, Kyu-Sik Jeong
  • Publication number: 20240109419
    Abstract: The present disclosure relates to a DC-DC converter, a vehicle, and a control method including the same, and more particularly, to a DC-DC converter, a vehicle, and a control method including the same capable of effectively detecting and responding to an interlock failure of a connector.
    Type: Application
    Filed: May 9, 2023
    Publication date: April 4, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Jae Hun JEONG, Mun Soo CHUNG, Kyu Won JEONG, Tae Woo KIM, Jong Dae KIM, Beom Sik KIM, Sang Don LEE
  • Publication number: 20240097566
    Abstract: A DC-DC converter, a vehicle including the converter, and a controlling method thereof are provided. The DC-DC converter includes a first capacitor connected to a first DC terminal, a second capacitor connected to a second DC terminal, a plurality of converting circuits each including at least an inductor and a plurality of switching elements, and connected to each other in parallel between the first capacitor and the second capacitor, and a controller configured to control an ON/OFF state of the plurality of switching elements provided of each of the converting circuits. When external power connection with respect to each of the first DC terminal and the second DC terminal is disconnected, the controller is configured to control states of the plurality of switching elements to sequentially provide a plurality of different discharge paths between opposite terminals of the second capacitor via the plurality of converting circuits.
    Type: Application
    Filed: July 3, 2023
    Publication date: March 21, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Beom Sik KIM, Kyu Won JEONG, Tae Woo KIM, Jae Hun JEONG, Mun Soo CHUNG, Sang Don LEE
  • Publication number: 20240097168
    Abstract: A vehicle is provided that includes a DC converter having a first end connected to a fuel cell, a second end connected to a high-voltage battery, and at least one switching element connected between the first end and the second end, a fuel cell control unit which controls an activation state of a running command for start of the fuel cell based on an on-off state of vehicle start, and a converter controller which controls a running state of the DC converter according to an initial start sequence, a shutdown sequence, or a restart sequence for the fuel cell based on the activation state of the running command.
    Type: Application
    Filed: March 8, 2023
    Publication date: March 21, 2024
    Inventors: Beom Sik KIM, Kyu Won JEONG, Tae Woo KIM, Jae Hun JEONG, Mun Soo CHUNG, Sang Don LEE
  • Patent number: 8950870
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
  • Publication number: 20140146292
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Application
    Filed: November 19, 2013
    Publication date: May 29, 2014
    Applicant: LG Electronics Inc.
    Inventors: Ho Joong KANG, Seung Gyu LEE, Sang Sik JEONG, Oh Jin KWEON
  • Patent number: 8633892
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: January 21, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
  • Publication number: 20100302511
    Abstract: A projection display device (100) capable of providing a virtual keyboard function to the user, using a light source of a pico projector, is discussed. According to an embodiment, the projection display device includes a light source unit (110) configured to emit lights; a light combining unit (120) configured to generate a leakage light from the lights emitted by the light source (110) unit and to selectively combine the lights from the light source unit (110); an image projection unit (130) configured to project an image using the combined light from the light combining unit (120); and a virtual input unit (140) configured to project an input unit image (150) using the leakage light from the light combining unit (120).
    Type: Application
    Filed: February 13, 2009
    Publication date: December 2, 2010
    Applicant: LG Electronics, Inc.
    Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
  • Publication number: 20070243456
    Abstract: The present invention relates to a thread-type flexible battery, more precisely a thread-type flexible battery that can be transformed into various forms in necessary and easily connected to an instrument from outside thereof by having a shape of a thread, which is constructed by forming an inside electrode by coating electrode material at periphery side of inside current collector, and coating electrolyte at the outside of said inside electrode, and forming an outside electrode by coating electrode material at periphery side of said electrolyte, and then depositing an outside electrolyte and a protecting coating part enabling to protect the periphery side of said outside electrolyte from a moisture and an air.
    Type: Application
    Filed: May 17, 2004
    Publication date: October 18, 2007
    Applicant: Gyeongsang National University
    Inventors: Hyo-Jun Ahn, Ki-Won Kim, Tae-Hyun Nam, Hwi-Beom Shin, Hyun-Chil Busan, Jai-Young Lee, Ho-Suk Ryu, Dong-Hyun Ryu, Sang-Won Lee, Tae-Bum Kim, Sang-Sik Jeong, Byung-Soo Jung, Jong-Hwa Kim, Duck-Jun Lee, Young-Jin Choi, Jou-Hyeon Ahn, Jin-Kyu Kim, Jae-Won Choi, Yeon-Hwa Kim, Jong-Uk Kim
  • Publication number: 20070154814
    Abstract: The present invention relates to a sodium-sulfur battery consisted of solid sodium for the negative electrode (comprising carbon, sodium metal oxide and the like comprising sodium compound, sodium ion); solid sulfur for the positive electrode (comprising sulfur, sulfur compound such as iron sulfide, nickel sulfide); and liquid electrolyte which sodium salt and organic solvent such as grymids or carbonates are soaked in cell guard, thereby improving a drawback of prior art for conventional battery.
    Type: Application
    Filed: March 3, 2004
    Publication date: July 5, 2007
    Inventors: Dong-Hyun Ryu, Chul-Wan Park, Hyo-Jun Ahn, Bong-Jun Kim, Eun-Mi Lee, Ho-Suk Ryu, Sang-Won Lee, Ki-Won Kim, Jou-Hyeon Ahn, Jai-Young Lee, Sang-Sik Jeong, Byung-Su Jung, Duck-Jun Lee, Young-Jin Choi, Jin-Kyu Kim
  • Patent number: 7154561
    Abstract: Disclosed is a sharpness improvement apparatus of an image signal which improves a sharpness of an analogue image signal so as to display a clear image. A display device which displays an inputted image signal on a screen can display a clear image with a digital sharpness improvement apparatus which realizes a sharpness of the image signal into a digital method by improving a degradation phenomenon of a signal generated at an analogue image processing into a simple digital circuit.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: December 26, 2006
    Assignee: LG Electronics Inc.
    Inventor: Sang Sik Jeong
  • Publication number: 20030142225
    Abstract: Disclosed is a sharpness improvement apparatus of an image signal which improves a sharpness of an analogue image signal so as to display a clear image. A display device which displays an inputted image signal on a screen can display a clear image with a digital sharpness improvement apparatus which realizes a sharpness of the image signal into a digital method by improving a degradation phenomenon of a signal generated at an analogue image processing into a simple digital circuit.
    Type: Application
    Filed: January 28, 2003
    Publication date: July 31, 2003
    Applicant: LG ELECTRONICS INC.
    Inventor: Sang Sik Jeong