Patents by Inventor Jeong Cheol Lee
Jeong Cheol Lee 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: 20240118028Abstract: An infrared heat source module is configured to minimize problems such as wrinkles or cracks in electrodes even if the patterns of a coated part and an uncoated part of the electrodes present in a current collector vary. The module improves a drying efficiency of the coated part of the current collector. An electrode using the infrared heat source module is manufactured by a process.Type: ApplicationFiled: January 27, 2022Publication date: April 11, 2024Applicant: LG Energy Solution, Ltd.Inventors: Soon Sik Choi, Young Kuk Ko, Oh Cheol Kwon, Ji Hwan Kim, Jeong Won Lee
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Publication number: 20240121924Abstract: A water-cooled heat dissipation module assembly capable of cooling a power module of a vehicle driving inverter system using a battery or fuel cell. The water-cooled heat dissipation module assembly includes a housing unit provided in the form of a housing having an opening portion at least partially opened at one side thereof. The housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser.Type: ApplicationFiled: August 4, 2022Publication date: April 11, 2024Inventors: Kwan Ho RYU, Jeong Keun LEE, Min Woo LEE, Ju Hyun SUN, Tae Keun PARK, Kang Wook PARK, Lee Cheol JI, Hyeok Chul YANG, Tae Heon KIM, Keun Jae LEE
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Patent number: 11923035Abstract: A pseudo dual port memory device in which an operating speed is improved and stability is increased is provided. The pseudo dual port memory device may include a memory cell, a pair of bit lines connected to the memory cell, a write driver, a sense amp, and a column multiplexer which is connected to the bit lines, receives a write multiplexer control signal and a read multiplexer control signal, connects the bit lines to the write driver in response to the write multiplexer control signal, and connects the bit lines to the sense amp in response to the read multiplexer control signal. A precharge control signal generation circuit which is connected to the column multiplexer may generate a precharge control signal on the basis of the read and write multiplexer control signals, and a bit line precharge circuit may precharge the bit lines based on the precharge control signal.Type: GrantFiled: February 10, 2022Date of Patent: March 5, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Chan Ho Lee, Tae Min Choi, Jeong Kyun Kim, Hyeong Cheol Kim, Suk Youn, Ju Chang Lee, Kyu Won Choi
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Patent number: 11322369Abstract: Disclosed is a powder protecting three-way valve for a semiconductor or flat panel display manufacturing apparatus, including: a valve casing including an inlet and a plurality of outlets; a rotating ball rotatably installed in the valve casing to control a flow direction of reaction by-product gas; a nitrogen gas supply member which receives nitrogen gas from an outside, guides a flow of the nitrogen gas using a guide path, and supplies the nitrogen gas into the valve casing to prevent a powder contained in the reaction by-product gas from accumulating in the valve casing; and a heating unit installed in the nitrogen gas supply member to heat the nitrogen gas passing through an interior of the nitrogen gas supply member. The nitrogen gas supply member is formed as a thin flat body pressed against one side surface of the valve casing and is integrally coupled to the valve casing.Type: GrantFiled: September 19, 2018Date of Patent: May 3, 2022Assignee: BOYA CO., LTD.Inventor: Jeong Cheol Lee
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Publication number: 20210366733Abstract: Disclosed is a powder protecting three-way valve for a semiconductor or flat panel display manufacturing apparatus, including: a valve casing including an inlet and a plurality of outlets; a rotating ball rotatably installed in the valve casing to control a flow direction of reaction by-product gas; a nitrogen gas supply member which receives nitrogen gas from an outside, guides a flow of the nitrogen gas using a guide path, and supplies the nitrogen gas into the valve casing to prevent a powder contained in the reaction by-product gas from accumulating in the valve casing; and a heating unit installed in the nitrogen gas supply member to heat the nitrogen gas passing through an interior of the nitrogen gas supply member. The nitrogen gas supply member is formed as a thin flat body pressed against one side surface of the valve casing and is integrally coupled to the valve casing.Type: ApplicationFiled: September 19, 2018Publication date: November 25, 2021Applicant: BOYA CO., LTD.Inventor: Jeong Cheol LEE
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Publication number: 20130055319Abstract: An apparatus and method for sharing television broadcasting are provided. The method includes, in a first portable terminal, connecting to a wireless network, and sending a TV broadcasting request to a TV module, for the first portable terminal to be granted a master function of switching a TV channel, receiving a password input request from the TV module, and transmitting a password to the TV module, in the first portable terminal, receiving the TV broadcasting from the TV module through the wireless network, and, in at least one or more additional portable terminals, receiving the TV broadcasting from the TV module through the wireless network, and sharing the TV broadcasting with the first portable terminal.Type: ApplicationFiled: August 20, 2012Publication date: February 28, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-Cheol LEE, Tae-Keun OH, Kyung-Chun MOON, Kwang-Jeung LEE
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Patent number: 7804367Abstract: A frequency synthesizer capable of using a voltage controlled oscillator (VCO) with a low value of gain Kvco, having a short automatic frequency calibration time and automatically coping with environments and a frequency calibration method are provided. The frequency synthesizer includes a reference divider, a phase detector, a main divider, a charge pump, a loop filter, a first switch, a second switch, a VCO, and an automatic frequency calibration block. The frequency calibration method includes an initialization step, an N-target algorithm step, an auxiliary search algorithm step, and a post search algorithm step.Type: GrantFiled: October 16, 2007Date of Patent: September 28, 2010Assignee: FCI Inc.Inventors: Jeong Cheol Lee, Moon Kyung Ahn
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Publication number: 20080157884Abstract: An adaptive frequency calibration unit employing an N-target algorithm for a high speed automatic frequency calibration for CDMA application is provided. The adaptive frequency calibration device calibrating a frequency of a voltage controlled oscillator (VCO) bank of a phase-locked loop (PLL), the adaptive frequency calibration device includes: a reference frequency divider dividing an output frequency of a temperature compensated crystal oscillator (TCXO); a feedback frequency divider dividing an output frequency of a prescaler; a frequency comparator comparing a frequency with the reference frequency divider output and the feedback frequency divider output; and a state machine providing a predetermined bit with a predetermined frequency resolution for the VCO to calibrate the frequency of the VCO bank using the frequency comparison result.Type: ApplicationFiled: July 14, 2006Publication date: July 3, 2008Applicant: FCI INC.Inventor: Jeong Cheol Lee
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Publication number: 20080106340Abstract: A frequency synthesizer capable of using a voltage controlled oscillator (VCO) with a low value of gain Kvco, having a short automatic frequency calibration time and automatically coping with environments and a frequency calibration method are provided. The frequency synthesizer includes a reference divider, a phase detector, a main divider, a charge pump, a loop filter, a first switch, a second switch, a VCO, and an automatic frequency calibration block. The frequency calibration method includes an initialization step, an N-target algorithm step, an auxiliary search algorithm step, and a post search algorithm step.Type: ApplicationFiled: October 16, 2007Publication date: May 8, 2008Applicant: FCI INC.Inventors: Jeong Cheol LEE, Moon Kyung AHN