Patents by Inventor Young Ho Ko
Young Ho Ko 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: 11382480Abstract: An autonomous cleaner includes a body having a first housing formed at a front and a second housing formed at a rear of the first housing; a brush unit installed at the first housing and configured to sweep and collect dust from a floor; a dust collecting unit installed at the second housing and configured to store the dust inlet into the brush unit; a driving unit to drive the body and coupled to the second housing to be positioned at a lateral side of the dust collecting unit; and a power unit installed at the second housing and coupled to be positioned at a rear of the dust collecting unit. The miniaturization of the autonomous cleaner may be provided while at the same time the capacity of a dust collecting container and the capacity of a battery are increased.Type: GrantFiled: October 5, 2018Date of Patent: July 12, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hwi-Chan Jang, Tae Soo Kim, Hyun Soo Jung, Sang Hwa Choi, Sang Sik Yoon, Shin Kim, Jin Hee Kim, Yeon Kyu Jeong, Hak Bong Lee, Young Ho Ko, Kyoung Woung Kim
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Publication number: 20220171124Abstract: Provided are a single-photon source device and a single-photon source system including same. The single-photon source device includes a substrate, a straight waveguide extending in a first direction on the substrate, a first coupling layer which is provided on the straight waveguide and has a first point defect, at least one first electrode which is adjacent to the first point defect and provided on the first coupling layer, a ring waveguide which is adjacent to the straight waveguide and provided on the substrate, and at least one second electrode provided on the ring waveguide.Type: ApplicationFiled: October 28, 2021Publication date: June 2, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young-Ho KO, Kap-Joong KIM, Hye Min KIM, Mireu LEE
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Publication number: 20220141008Abstract: Disclosed is a quantum key distribution system using an RFI (reference frame independent) QKD (quantum key distribution) protocol, which includes a first signal processing circuit that generates transmission basis information and transmission bit information, a quantum channel transmitter that generates a single photon or coherent light, and modulates the single photon or the coherent light based on the transmission basis information and the transmission bit information to generate a quantum signal, a quantum channel receiver that receives the quantum signal through a quantum channel and detects reception bit information from the quantum signal based on reception basis information, and a second signal processing circuit that generates the reception basis information, transmits the reception basis information to the first signal processing circuit through a public channel, and receives the transmission basis information from the first signal processing circuit through the public channel.Type: ApplicationFiled: September 29, 2021Publication date: May 5, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kyongchun LIM, Chun Ju YOUN, Byung-seok CHOI, Young-Ho KO, Kap-Joong KIM, Minchul KIM, Ju Hee BAEK, Joong-Seon CHOE
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Publication number: 20220088051Abstract: The present invention pertains to: a double-stranded oligonucleotide construct having a structure in which a hydrophilic substance and a hydrophobic substance are conjugated by a simple covalent bond or a linker-mediated covalent bond at both ends of a DKK1-specific double-stranded oligonucleotide to efficiently deliver the double-stranded oligonucleotide into cells; a nanoparticle capable of being produced through self-assembly of the double-stranded oligonucleotide construct through a hydrophobic interaction in an aqueous solution; and a hair-loss-preventing and hair-growth-promoting composition containing the double-stranded oligonucleotide construct or the nanoparticle.Type: ApplicationFiled: January 15, 2020Publication date: March 24, 2022Inventors: Han-Oh PARK, Sung II YUN, Sang-Jin BYUN, Pyoung Oh YOON, Sang-Kyu LEE, Tae-Rim KIM, Young-Ho KO, Seung-Seob SON, Eun-Ah GOH, Hyung-Jin KIM
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Publication number: 20220066245Abstract: Provided is a light modulation device includes a substrate, a lower clad layer disposed on the substrate, a core layer disposed on the lower clad layer to extend in a first direction which is parallel to a top surface of the substrate, and an upper clad layer covering the core on the lower clad layer. The core layer includes a waveguide layer extending in the first direction; and photonic crystal structures disposed in the waveguide layer and periodically arranged along the first direction.Type: ApplicationFiled: September 1, 2021Publication date: March 3, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kap-Joong KIM, Chun Ju YOUN, Young-Ho KO, Minchul KIM, Kyongchun LIM, Byung-Seok CHOI, Joong-Seon CHOE
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Publication number: 20220023353Abstract: The present invention relates to a composition for improving memory, or a composition for preventing and treating Alzheimer's disease, or a method for preparing said compositions, or a treatment method, wherein said compositions are characterized by comprising a cooked silkworm product and an Angelica root extract as effective components. As the present invention provides compositions using an Angelica root extract and a silkworm product rich in silk proteins and functional materials derived from mulberry leaves to improve memory and prevent or treat Alzheimer's disease, various health supplement products or drugs using the present invention are expected to be developed and commercialized, making it possible to fundamentally prevent and treat aging and dementia associated with aging, which are arising as a major problem in modern societies, and also to provide benefits of memory improvements in various other demographics, such as students, students studying for exams, office workers, etc.Type: ApplicationFiled: November 15, 2019Publication date: January 27, 2022Inventors: Sang Deok JI, Kee Young KIM, Nam Suk KIM, You Young JO, Su Bae KIM, Sung Wan KIM, Jong Gil KIM, Young Guk KIM, Young Ho KO, A Young KIM, Bo Hae CHOI, Phuong NGUYEN, Hyun Woo PARK, Joo Won SUH, Hui JIN, Mi Kyung SONG
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Publication number: 20210306077Abstract: Disclosed are a quantum information transmitter, a quantum communication system including the same, and an operating method of the quantum information transmitter. The quantum information transmitter includes a light source driver, a light source, and a light modulator. The light source driver generates a first light source driving signal having a first level and a second light source driving signal having a second level. The light source generates a first light signal having a first average number of photons in response to the first light source driving signal, and generates a second light signal having a second average number of photons in response to the second light source driving signal. The optical modulator modulates the first light signal to generate a target signal, and modulates the second light signal to generate a decoy signal.Type: ApplicationFiled: March 16, 2021Publication date: September 30, 2021Applicant: Electronics and Telecommunications Research InstituteInventors: Kyongchun LIM, Chun Ju YOUN, Young-Ho KO, Kap Joong KIM, Minchul KIM, Byung-seok CHOI, Joong-Seon CHOE
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Patent number: 11078971Abstract: Disclosed is a clutch control reference value setting method including generating a current-hydraulic pressure model, setting a temporary VKP to a current causing a maximum difference between a model hydraulic pressure and a measured hydraulic pressure, determining that the temporary VKP is valid when a deflection amount calculated from a difference integral value acquired by integrating differences between the model hydraulic pressure and the measured hydraulic pressure while increasing the current is greater than a first reference value under a condition that the first target pressure is applied to the clutch, determining that the temporary VKP is appropriate when a deflection amount calculated from a difference integral value acquired by integrating differences between the model hydraulic pressure and the measured hydraulic pressure while increasing the current is proper under a condition that a second target pressure is applied to the clutch.Type: GrantFiled: February 28, 2020Date of Patent: August 3, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho Ko, Tae Hee Cho, Ho Young Lee
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Publication number: 20210131509Abstract: Disclosed is a clutch control reference value setting method including generating a current-hydraulic pressure model, setting a temporary VKP to a current causing a maximum difference between a model hydraulic pressure and a measured hydraulic pressure, determining that the temporary VKP is valid when a deflection amount calculated from a difference integral value acquired by integrating differences between the model hydraulic pressure and the measured hydraulic pressure while increasing the current is greater than a first reference value under a condition that the first target pressure is applied to the clutch, determining that the temporary VKP is appropriate when a deflection amount calculated from a difference integral value acquired by integrating differences between the model hydraulic pressure and the measured hydraulic pressure while increasing the current is proper under a condition that a second target pressure is applied to the clutch.Type: ApplicationFiled: February 28, 2020Publication date: May 6, 2021Inventors: Young Ho Ko, Tae Hee Cho, Ho Young Lee
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Publication number: 20210119076Abstract: Disclosed are a quantum light source and an optical communication apparatus including the same. The quantum light source device includes a vertical reflection layer disposed on a substrate, a lower electrode layer disposed on the vertical reflection layer, a horizontal reflection layer disposed on the lower electrode layer, a quantum light source disposed in the horizontal reflection layer, and an upper electrode layer disposed on the horizontal reflection layer.Type: ApplicationFiled: October 21, 2020Publication date: April 22, 2021Applicant: Electronics and Telecommunications Research InstituteInventors: Young-Ho KO, Kap-Joong KIM, Byung-seok CHOI, Won Seok HAN
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Patent number: 10926770Abstract: A method of controlling a dual clutch transmission, may include releasing a pressure of a non-driveshaft clutch and engaging a gear of a non-driveshaft; applying a first pressure to the non-driveshaft clutch and disengaging the gear of the non-driveshaft; determining a drag torque on the basis of a first rotation speed change rate of the non-driveshaft; releasing the first pressure and engaging the gear of the non-driveshaft; applying a second pressure to the non-driveshaft clutch and disengaging the gear of the non-driveshaft; determining a touch point torque on the basis of a second rotation speed change rate of the non-driveshaft; and adjusting a touch point of the non-driveshaft clutch on the basis of a net torque which is a difference between the touch point torque and the drag torque.Type: GrantFiled: October 25, 2019Date of Patent: February 23, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho Ko, Ho Young Lee
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Patent number: 10918250Abstract: A robot vacuum cleaner that may increase cleaning efficiency around obstacles includes a main body having an intake to suck in dust and air while the main body is driven on a floor, a shutter installed in front of the intake to be able to move from the main body toward the floor, and a shutter driver configured to supply power to move the shutter.Type: GrantFiled: October 19, 2017Date of Patent: February 16, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung In Lee, Young Ho Ko, Ji Won Choi, Hak Bong Lee, Seung Il Han, Myeong Ho Kim
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Patent number: 10830342Abstract: A line pressure control method for a dual-clutch transmission (DCT), may include a hydraulic-pressure-decreasing operation of interrupting, by a controller, the supply of current to an electric oil pump and estimating a decrease in a line pressure using a line pressure model based on a pressure accumulator mounted in a hydraulic pressure line, a pump-driving operation of, when the estimated line pressure is equal to or less than a predetermined lower-limit value, driving, by the controller, the electric oil pump, and a hydraulic-pressure-increasing operation of determining, by the controller, the line pressure based on the current supplied to the electric oil pump and to determine whether the determined line pressure is equal to or greater than a predetermined upper-limit value.Type: GrantFiled: August 13, 2019Date of Patent: November 10, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho Ko, Hwa Young Lee, Young Min Yoon, Jin Sung Kim
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Publication number: 20200346651Abstract: A method of controlling a dual clutch transmission, may include releasing a pressure of a non-driveshaft clutch and engaging a gear of a non-driveshaft; applying a first pressure to the non-driveshaft clutch and disengaging the gear of the non-driveshaft; determining a drag torque on the basis of a first rotation speed change rate of the non-driveshaft; releasing the first pressure and engaging the gear of the non-driveshaft; applying a second pressure to the non-driveshaft clutch and disengaging the gear of the non-driveshaft; determining a touch point torque on the basis of a second rotation speed change rate of the non-driveshaft; and adjusting a touch point of the non-driveshaft clutch on the basis of a net torque which is a difference between the touch point torque and the drag torque.Type: ApplicationFiled: October 25, 2019Publication date: November 5, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho KO, Ho Young Lee
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Publication number: 20200325985Abstract: A line pressure control method for a dual-clutch transmission (DCT), may include a hydraulic-pressure-decreasing operation of interrupting, by a controller, the supply of current to an electric oil pump and estimating a decrease in a line pressure using a line pressure model based on a pressure accumulator mounted in a hydraulic pressure line, a pump-driving operation of, when the estimated line pressure is equal to or less than a predetermined lower-limit value, driving, by the controller, the electric oil pump, and a hydraulic-pressure-increasing operation of determining, by the controller, the line pressure based on the current supplied to the electric oil pump and to determine whether the determined line pressure is equal to or greater than a predetermined upper-limit value.Type: ApplicationFiled: August 13, 2019Publication date: October 15, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho KO, Hwa Young LEE, Young Min YOON, Jin Sung KIM
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Patent number: 10801562Abstract: A clutch control method may include generating a current-hydraulic pressure model by obtaining an increasing slope of a measured hydraulic pressure which is applied to a clutch in accordance with an increase of a primary ramp current while applying the primary ramp current to a solenoid valve that controls hydraulic pressure to be supplied to the clutch; obtaining a difference between a virtual hydraulic pressure according to the current-hydraulic pressure model and a measured hydraulic pressure applied to the clutch for a secondary ramp current while applying the secondary ramp current to the solenoid valve after removing the primary ramp current; performing updating by learning a secondary ramp current, at which the difference between the virtual hydraulic pressure and the measured hydraulic pressure is maximum, as a Volumetric Kiss Point (VKP); and controlling the clutch on the basis of the learned VKP.Type: GrantFiled: February 15, 2019Date of Patent: October 13, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho Ko, Ho Young Lee
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Patent number: 10801611Abstract: A method of controlling line pressure of a hydraulic circuit of a transmission, may include turning on electric current by a controller to apply the electric current to an electric oil pump and determining line pressure depending on the electric current applied; and turning off the electric current by the controller so that the electric current being applied to the electric oil pump is cut off when the determined line pressure is greater than a predetermined reference upper limit value, estimating line pressure dropping down with a passage of time and determining the estimated line pressure, wherein when the estimated line pressure becomes lower than a predetermined reference lower limit value, the turning on the electric current is repeated.Type: GrantFiled: August 5, 2019Date of Patent: October 13, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Sung Kim, Young Ho Ko, Young Min Yoon
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Publication number: 20200309255Abstract: A method of controlling line pressure of a hydraulic circuit of a transmission, may include turning on electric current by a controller to apply the electric current to an electric oil pump and determining line pressure depending on the electric current applied; and turning off the electric current by the controller so that the electric current being applied to the electric oil pump is cut off when the determined line pressure is greater than a predetermined reference upper limit value, estimating line pressure dropping down with a passage of time and determining the estimated line pressure, wherein when the estimated line pressure becomes lower than a predetermined reference lower limit value, the turning on the electric current is repeated.Type: ApplicationFiled: August 5, 2019Publication date: October 1, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Sung KIM, Young Ho KO, Young Min YOON
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Patent number: 10738841Abstract: An oil pump control method for a DCT may include estimating line pressure, using a pressure-up model formed from a relationship between an oil pump driving current and a hydraulic pressure; stopping the oil pump when the line pressure estimated from the pressure-up model is equal to or higher than a predetermined upper limit hydraulic pressure; estimating a dropping line pressure from a first pressure-down model for a predetermined first reference time after stopping the oil pump on the basis of the line pressure estimated when the oil pump is stopped as an initial value; forming a second pressure-down model by opening a solenoid valve supplying hydraulic pressure to a non-drive side clutch, and estimating a line pressure from the second pressure-down model, and returning to the pressure-up step when the line pressure reaches predetermined lower limit hydraulic pressure or less.Type: GrantFiled: April 17, 2019Date of Patent: August 11, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho Ko, Young Min Yoon, Jin Sung Kim
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Publication number: 20200166086Abstract: An oil pump control method for a DCT may include estimating line pressure, using a pressure-up model formed from a relationship between an oil pump driving current and a hydraulic pressure; stopping the oil pump when the line pressure estimated from the pressure-up model is equal to or higher than a predetermined upper limit hydraulic pressure; estimating a dropping line pressure from a first pressure-down model for a predetermined first reference time after stopping the oil pump on the basis of the line pressure estimated when the oil pump is stopped as an initial value; forming a second pressure-down model by opening a solenoid valve supplying hydraulic pressure to a non-drive side clutch, and estimating a line pressure from the second pressure-down model, and returning to the pressure-up step when the line pressure reaches predetermined lower limit hydraulic pressure or less.Type: ApplicationFiled: April 17, 2019Publication date: May 28, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Young Ho KO, Yong Min YOON, Jin Sung Kim