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).
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Publication number: 20240146229Abstract: 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: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Inventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin
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Publication number: 20240128109Abstract: 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: ApplicationFiled: October 11, 2023Publication date: April 18, 2024Inventors: Ji Hun Kim, Youn Gon Oh, Woo-Ram Moon, Sang Hyuk Park, Jong Hun Lee, Kyu-Sik Jeong
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Publication number: 20240109419Abstract: 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: ApplicationFiled: May 9, 2023Publication date: April 4, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Jae Hun JEONG, Mun Soo CHUNG, Kyu Won JEONG, Tae Woo KIM, Jong Dae KIM, Beom Sik KIM, Sang Don LEE
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Publication number: 20240097566Abstract: 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: ApplicationFiled: July 3, 2023Publication date: March 21, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Beom Sik KIM, Kyu Won JEONG, Tae Woo KIM, Jae Hun JEONG, Mun Soo CHUNG, Sang Don LEE
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Publication number: 20240097168Abstract: 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: ApplicationFiled: March 8, 2023Publication date: March 21, 2024Inventors: Beom Sik KIM, Kyu Won JEONG, Tae Woo KIM, Jae Hun JEONG, Mun Soo CHUNG, Sang Don LEE
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Patent number: 8950870Abstract: 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: GrantFiled: November 19, 2013Date of Patent: February 10, 2015Assignee: LG Electronics Inc.Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
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Publication number: 20140146292Abstract: 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: ApplicationFiled: November 19, 2013Publication date: May 29, 2014Applicant: LG Electronics Inc.Inventors: Ho Joong KANG, Seung Gyu LEE, Sang Sik JEONG, Oh Jin KWEON
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Patent number: 8633892Abstract: 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: GrantFiled: February 13, 2009Date of Patent: January 21, 2014Assignee: LG Electronics Inc.Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
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Publication number: 20100302511Abstract: 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: ApplicationFiled: February 13, 2009Publication date: December 2, 2010Applicant: LG Electronics, Inc.Inventors: Ho Joong Kang, Seung Gyu Lee, Sang Sik Jeong, Oh Jin Kweon
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Publication number: 20070243456Abstract: 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: ApplicationFiled: May 17, 2004Publication date: October 18, 2007Applicant: Gyeongsang National UniversityInventors: 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
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Publication number: 20070154814Abstract: 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: ApplicationFiled: March 3, 2004Publication date: July 5, 2007Inventors: 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
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Patent number: 7154561Abstract: 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: GrantFiled: January 28, 2003Date of Patent: December 26, 2006Assignee: LG Electronics Inc.Inventor: Sang Sik Jeong
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Publication number: 20030142225Abstract: 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: ApplicationFiled: January 28, 2003Publication date: July 31, 2003Applicant: LG ELECTRONICS INC.Inventor: Sang Sik Jeong