Patents by Inventor Se-won Lee
Se-won 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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Patent number: 9986616Abstract: A lamp control device includes a lamp including an LED module which has a plurality of LED channels; and a controller configured to detect respective feedback voltages of the plurality of LED channels, and determine, when at least any one feedback voltage among the feedback voltages is retained to be lower than a predetermined reference voltage and a generation count of an over voltage protection signal reaches a predetermined reference count, an LED channel corresponding to the feedback voltage, as an open.Type: GrantFiled: December 30, 2015Date of Patent: May 29, 2018Assignee: SILICON WORKS CO., LTD.Inventors: Ju Pyo Hong, Joo Wan Ha, Hai Feng Jin, Se Won Lee, Wanyuan Qu, Sung Hwan Kim, Sun Geon Yoo, Byeong Ho Jeong, Ju Hyun Lee
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Patent number: 9955543Abstract: A lamp control device may include: a lamp including an LED module having a plurality of LED channels; a converter configured to receive a voltage corresponding to a turn signal, convert the voltage into an output voltage and internal voltage, and supply the output voltage to the LED module; and a controller configured to start counting a preset delay time when the internal voltage is supplied from the converter, and control the plurality of LED channels to sequentially light up at intervals of the delay time.Type: GrantFiled: January 7, 2016Date of Patent: April 24, 2018Assignees: SILICON WORKS CO., LTD., HYUNDAI IHL CORPORATIONInventors: Ju Pyo Hong, Joo Wan Ha, Sung Hwan Kim, Ju Hyun Lee, Hai Feng Jin, Tae Young Yoo, Wanyuan Qu, Se Won Lee, Byeong Ho Jeong, Hyun Il Park
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Publication number: 20180092172Abstract: Provided is a lighting apparatus. The lighting apparatus may provide an output voltage to lighting loads, and include: a converter configured to generate the output voltage using a driving signal; and a driving circuit configured to provide the driving signal, and spread the frequency of the driving signal by performing frequency dithering on the driving signal while changing the shape of an oscillation signal.Type: ApplicationFiled: April 1, 2016Publication date: March 29, 2018Applicant: SILICON WORKS CO., LTD.Inventors: Tae Young YOO, Joo Wan HA, Ju Pyo HONG, Sung Hwan KIM, Hai Feng JIN, Ju Hyun LEE, Wanyuan QU, Byeong Ho JEONG, Se Won LEE
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Publication number: 20180007756Abstract: A lamp control device may include: a lamp including an LED module having a plurality of LED channels; a converter configured to receive a voltage corresponding to a turn signal, convert the voltage into an output voltage and internal voltage, and supply the output voltage to the LED module; and a controller configured to start counting a preset delay time when the internal voltage is supplied from the converter, and control the plurality of LED channels to sequentially light up at intervals of the delay time.Type: ApplicationFiled: January 7, 2016Publication date: January 4, 2018Applicants: SILICON WORKS CO., LTD., HYUNDAI IHL CORPORATIONInventors: Ju Pyo HONG, Joo Wan HA, Sung Hwan KIM, Ju Hyun LEE, Hai Feng JIN, Tae Young YOO, Wanyuan QU, Se Won LEE, Byeong Ho JEONG, Hyun II PARK
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Publication number: 20170374712Abstract: Disclosed is a lamp control device. The lamp control device may include: a lamp having an LED channel; a channel resistor corresponding to the LED channel; and a controller configured to boost a channel resistor voltage applied to the channel resistor, and retain a channel current of the LED channel as a target current, using the boosted channel resistor voltage.Type: ApplicationFiled: December 30, 2015Publication date: December 28, 2017Applicant: SILICON WORKS CO., LTD.Inventors: Wanyuan QU, Se Won LEE, Byeong Ho JEONG, Ju Pyo HONG, Ju Hyun LEE, Sung Hwan KIM, Hai Feng JIN, Joo Wan HA, Tae Young YOO
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Publication number: 20170359868Abstract: A lamp control device includes a converter configured to provide an output voltage and an internal voltage; a lamp including an LED module which has a plurality of LED channels, and configured to emit light in correspondence to the output voltage of the converter; and a controller configured to operate by using the internal voltage of the converter, control the output voltage of the converter to be retained at a level equal to or higher than a predetermined level, by using feedback voltages of the plurality of LED channels, and control channel currents of the plurality of LED channels to be regulated in correspondence to memory values which are set in advance.Type: ApplicationFiled: December 30, 2015Publication date: December 14, 2017Applicant: SILICON WORKS CO., LTD.Inventors: Sung Hwan KIM, Joo Wan HA, Sun Geon YOO, Hai Feng JIN, Ju Hyun LEE, Wanyuan QU, Se Won LEE, Byeong Ho JEONG, Ju Pyo HONG
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Publication number: 20170303352Abstract: A lamp control device includes a lamp including an LED module which has a plurality of LED channels; and a controller configured to detect respective feedback voltages of the plurality of LED channels, and determine, when at least any one feedback voltage among the feedback voltages is retained to be lower than a predetermined reference voltage and a generation count of an over voltage protection signal reaches a predetermined reference count, an LED channel corresponding to the feedback voltage, as an open.Type: ApplicationFiled: December 30, 2015Publication date: October 19, 2017Applicant: SILICON WORKS CO., LTD.Inventors: Ju Pyo HONG, Joo Wan HA, Hai Feng JIN, Se Won LEE, Wanyuan QU, Sung Hwan KIM, Sun Geon YOO, Byeong Ho JEONG, Ju Hyun LEE
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Patent number: 9793797Abstract: Disclosed are a switching apparatus including an internal circuit using an inductive element and a control method thereof. The switching apparatus includes a switch that regulates a current of the inductive element, and a signal control circuit that arithmetically calculates a turn-off time point of the switch by using a monitoring voltage corresponding to the current of the inductive element, a sampling voltage of the monitoring voltage, and a reference voltage corresponding to a target average current of the inductive element, and controls the switch.Type: GrantFiled: February 26, 2015Date of Patent: October 17, 2017Assignee: SILICON WORKS CO., LTD.Inventors: Wanyuan Qu, Se Won Lee, Ju Pyo Hong, Ok Hwan Kwon, Hai Feng Jin, Sung Hwan Kim, Ju Hyun Lee, Jin Won Mok, Ju Yeong Kim
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Publication number: 20150249388Abstract: Disclosed are a switching apparatus including an internal circuit using an inductive element and a control method thereof. The switching apparatus includes a switch that regulates a current of the inductive element, and a signal control circuit that arithmetically calculates a turn-off time point of the switch by using a monitoring voltage corresponding to the current of the inductive element, a sampling voltage of the monitoring voltage, and a reference voltage corresponding to a target average current of the inductive element, and controls the switch.Type: ApplicationFiled: February 26, 2015Publication date: September 3, 2015Inventors: Wanyuan QU, Se Won LEE, Ju Pyo HONG, Ok Hwan KWON, Hai Feng JIN, Sung Hwan KIM, Ju Hyun LEE, Jin Won MOK, Ju Yeong KIM
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Publication number: 20150119251Abstract: Provided is an agricultural plant-protecting agent including a dipeptide derivative or an agro-pharmaceutically acceptable salt thereof as an active ingredient, which has a plant disease-preventing effect, a plant growth-promoting effect, and a plant immunity-activating effect.Type: ApplicationFiled: April 18, 2013Publication date: April 30, 2015Inventors: Kyung Seok Park, Jin Woo Park, Se Won Lee, Surk Sik Moon, In Seok Hong
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Publication number: 20140238443Abstract: Provided is a substrate treatment apparatus. The apparatus includes a chuck supporting a substrate and being rotatable, a container surrounding the chuck and collecting chemicals scattered due to rotations of the substrate, and a first spray nozzle spraying the chemicals to the substrate.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Applicant: SEMES CO., LTD.Inventors: Se Won LEE, Yong Hee LEE, Jae Yong KIM
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Publication number: 20140212682Abstract: Provided is a method for manufacturing a metal structure in which an array of a plurality of pin arrangements is formed on a surface of a metal, in which the method includes: performing a laser processing along a route between pin regions in which the pins are to be formed on a metal base material to form a dross on the pin regions, and repeating the laser processing. As the dross formed in each pin region is repeatedly cast and recast during the repetitive laser processing, the recast layer is formed in a shape of the pin.Type: ApplicationFiled: February 10, 2012Publication date: July 31, 2014Applicant: SNU R&DB FOUNDATIONInventors: Se Won Lee, Hong Shik Shin, Chong Nam Chu, Haan Kim, Sang Jae Shin
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Patent number: 8519783Abstract: An internal voltage generating circuit includes a drive signal generating unit, a drive signal controlling unit, and a driving unit. The drive signal generating unit is configured to compare an internal voltage with first and second reference voltages and generate a first pull-up drive signal and a first pull-down drive signal. The drive signal controlling unit is configured to buffer the first pull-up drive signal and the first pull-down drive signal and generate a second pull-up drive signal and a second pull-down drive signal, wherein the second pull-up drive signal and the second pull-down drive signal are deactivated when the first pull-up drive signal and the first pull-down drive signal are activated. The driving unit is configured to drive the internal voltage in response to the second pull-up drive signal and the second pull-down drive signal.Type: GrantFiled: July 27, 2011Date of Patent: August 27, 2013Assignee: SK Hynix Inc.Inventor: Se Won Lee
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Patent number: 8468645Abstract: A cleaning robot having an exhaust air feedback function can utilize the vacuum suction force generated by a suction motor as well as spray exhaust air onto the surface to be cleaned by circulating the air using the suction motor, thereby improving foreign material removal efficiency. The cleaning robot includes a suction unit, a suction motor for drawing in foreign materials from the surface to be cleaned, along with air, through the suction unit, a dust collector for capturing the foreign materials, so that the air is exhausted through the suction motor, and an exhaust air feedback unit for feeding the air. The cleaning robot also includes a spray nozzle unit inserted into the suction unit and placed on the leading end of the suction unit, the spray nozzle unit spraying the air fed by the exhaust air feedback unit, to the surface to be cleaned.Type: GrantFiled: August 30, 2007Date of Patent: June 25, 2013Assignee: Hanool Robotics Corp.Inventors: Byung-Soo Kim, Jae-Young Choi, Se-Won Lee, Sang-Hee Kim
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Publication number: 20120218006Abstract: An internal voltage generating circuit includes a drive signal generating unit, a drive signal controlling unit, and a driving unit. The drive signal generating unit is configured to compare an internal voltage with first and second reference voltages and generate a first pull-up drive signal and a first pull-down drive signal. The drive signal controlling unit is configured to buffer the first pull-up drive signal and the first pull-down drive signal and generate a second pull-up drive signal and a second pull-down drive signal, wherein the second pull-up drive signal and the second pull-down drive signal are deactivated when the first pull-up drive signal and the first pull-down drive signal are activated. The driving unit is configured to drive the internal voltage in response to the second pull-up drive signal and the second pull-down drive signal.Type: ApplicationFiled: July 27, 2011Publication date: August 30, 2012Applicant: HYNIX SEMICONDUCTOR INC.Inventor: Se Won LEE
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Patent number: 8253059Abstract: A substrate cleaning apparatus includes a supporting plate supporting a substrate and a shielding unit that is disposed above the substrate to protect the substrate. A portion of the shielding unit, which is adjacent to a focal point where light for generating shock waves is focused, is switched. Therefore, the substrate cleaning apparatus prevents the concentration of plumes and residence beams, which are generated together with the shock waves, on a specific region of the shielding unit and further prevents the recontamination of the substrate by the damage of the shielding unit.Type: GrantFiled: November 18, 2008Date of Patent: August 28, 2012Assignee: Semes Co., Ltd.Inventors: Se-Won Lee, Jae-Jeong Jeong, Jung-Gun Cho
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Patent number: 8163129Abstract: In a method and an apparatus for cleaning a substrate using a laser beam, an inner chamber is disposed in a process chamber to define a space in which a laser-induced shock wave is generated. The laser beam is focused on a laser focus positioned in the inner chamber, and thus the laser-induced plasma shock wave is generated around the laser focus. The plasma shock wave is reflected from inner surfaces of the inner chamber and is irradiated on the substrate through a lower portion of the inner chamber. As a result, the intensity of the plasma shock wave irradiated on the substrate is increased, and thus the contaminants on the substrate may be effectively removed.Type: GrantFiled: October 1, 2008Date of Patent: April 24, 2012Assignee: Semes Co., Ltd.Inventor: Se-Won Lee
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Patent number: 8026759Abstract: A multistage amplifying circuit includes a first amplifying circuit that either samples a first analog voltage input or amplifies a difference between the first analog voltage and a first digital voltage converted from the first analog voltage, in response to a control signal. A second amplifying circuit either samples a second analog voltage input or amplifies a difference between the second analog voltage and a second digital voltage converted from the second analog voltage, in response to the control signal. A common amplifier receives output voltages of the first amplifying circuit and the second amplifying circuit and either resets the output voltage of the first amplifying circuit and determines an output voltage by using the second amplifying circuit, or resets the output voltage of the second amplifying circuit and determines an output voltage by using the first amplifying circuit, in response to the control signal.Type: GrantFiled: July 22, 2010Date of Patent: September 27, 2011Assignees: Samsung Electronics Co., Ltd., Sogang UniversityInventors: Michael Choi, Ho-jin Park, Eun-seok Shin, Kyoung-jun Moon, Seung-hoon Lee, Kyung-hoon Lee, Young-ju Kim, Se-won Lee, Beom-soo Park
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Publication number: 20110037520Abstract: A multistage amplifying circuit includes a first amplifying circuit that either samples a first analog voltage input or amplifies a difference between the first analog voltage and a first digital voltage converted from the first analog voltage, in response to a control signal. A second amplifying circuit either samples a second analog voltage input or amplifies a difference between the second analog voltage and a second digital voltage converted from the second analog voltage, in response to the control signal. A common amplifier receives output voltages of the first amplifying circuit and the second amplifying circuit and either resets the output voltage of the first amplifying circuit and determines an output voltage by using the second amplifying circuit, or resets the output voltage of the second amplifying circuit and determines an output voltage by using the first amplifying circuit, in response to the control signal.Type: ApplicationFiled: July 22, 2010Publication date: February 17, 2011Inventors: MICHAEL CHOI, Ho-jin Park, Eun-seok Shin, Kyoung-jun Moon, Seung-hoon Lee, Kyung-hoon Lee, Young-ju Kim, Se-won Lee, Beom-soo Park
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Publication number: 20100088840Abstract: A cleaning robot having an exhaust air feedback function can utilize the vacuum suction force generated by a suction motor as well as spray exhaust air onto the surface to be cleaned by circulating the air using the suction motor, thereby improving foreign material removal efficiency. The cleaning robot includes a suction unit, a suction motor for drawing in foreign materials from the surface to be cleaned, along with air, through the suction unit, a dust collector for capturing the foreign materials, so that the air is exhausted through the suction motor, and an exhaust air feedback unit for feeding the air. The cleaning robot also includes a spray nozzle unit inserted into the suction unit and placed on the leading end of the suction unit, the spray nozzle unit spraying the air fed by the exhaust air feedback unit, to the surface to be cleaned.Type: ApplicationFiled: August 30, 2007Publication date: April 15, 2010Applicant: HANOOL ROBOTICS CORPInventors: Byung-Soo Kim, Jae-Young Choi, Se-Won Lee, Sang-Hee Kim