Patents by Inventor Tae-Gon Noh
Tae-Gon Noh 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: 11725600Abstract: A method controls an opening speed of a purge valve according to the purge gas concentration implemented by an active purge system (APS). A purge controller varies, when a valve opening speed of a purge control solenoid valve (PCSV) is controlled, the valve opening speed of the PCSV using any one among a low concentration rate coefficient, a high concentration rate coefficient, a coolant temperature rate coefficient, and an ambient air temperature rate coefficient, and performs the purge control using a difference between the valve opening speeds, and thus dualizes the valve opening speed of the PCSV according to a hydrocarbon (HC) concentration, thereby stably controlling the air-fuel ratio, and simultaneously, securing the purge rate and relatively stably control an air-fuel ratio in a state of high concentration purge execution.Type: GrantFiled: August 30, 2022Date of Patent: August 15, 2023Inventors: Jung-Seop Son, Tae-Gon Noh, Hyung-Seok Yoon
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Patent number: 11635038Abstract: An embodiment is a method including controlling a purge fuel amount of an active purge system (APS), the controlling including correcting the purge fuel amount using a primary weighting factor obtained using an ambient air temperature and a hydrocarbon (HC) concentration in purge gas fuel as input values, and correcting the corrected purge fuel amount using a secondary weighting factor due to a purge learning value. Some embodiments further include controlling of the purge fuel amount applies a purge execution condition, and the purge execution condition on the basis of a negative pressure of an intake manifold and a vehicle speed of the vehicle in which a purge flow rate exhibits as being greater than or equal to a predetermined value.Type: GrantFiled: August 30, 2022Date of Patent: April 25, 2023Assignees: Hyundai Motor Company, Kia CorporationInventors: Jung-Seop Son, Tae-Gon Noh, Hyung-Seok Yoon
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Patent number: 11168632Abstract: A method of controlling an air-fuel ratio in a pre-ignition (PI) situation, may include: monitoring, by a PI detector, whether PI occurs in a cylinder of a plurality of cylinders of an engine; and when the PI occurs in the cylinder of the plurality cylinders, controlling, by a controller, an air-fuel ratio of the cylinder in which the PI occurs to be smaller than a theoretical air-fuel ratio, and controlling an air-fuel ratio of a remaining cylinder of the plurality of cylinders in which PI does not occur to be larger than the theoretical air-fuel ratio.Type: GrantFiled: June 9, 2020Date of Patent: November 9, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong-Hoon Lee, Min-Kyu Han, Tae-Gon Noh
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Publication number: 20210254570Abstract: A method of controlling an air-fuel ratio in a pre-ignition (PI) situation, may include: monitoring, by a PI detector, whether PI occurs in a cylinder of a plurality of cylinders of an engine; and when the PI occurs in the cylinder of the plurality cylinders, controlling, by a controller, an air-fuel ratio of the cylinder in which the PI occurs to be smaller than a theoretical air-fuel ratio, and controlling an air-fuel ratio of a remaining cylinder of the plurality of cylinders in which PI does not occur to be larger than the theoretical air-fuel ratio.Type: ApplicationFiled: June 9, 2020Publication date: August 19, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong-Hoon LEE, Min-Kyu HAN, Tae-Gon NOH
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Patent number: 10753293Abstract: A method for controlling an air-fuel ratio in an idle purge-off mode is provided. The method includes stopping feedback for an amount of fuel for a particular period of time when idle purging is terminated and performing freeze control with a constant lambda control value.Type: GrantFiled: November 13, 2018Date of Patent: August 25, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Tae-Gon Noh, Seung-Mook You
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Patent number: 10753292Abstract: A method of controlling an engine during idle purge of a canister includes: determining whether current operation information of a vehicle satisfies an idle purge condition, determining whether canister purge learning time performed during a part load condition is a set time or more when a purge operation condition is satisfied, and performing idle purge of the canister when the canister purge learning time performed during the part load condition is the set time or more.Type: GrantFiled: December 12, 2017Date of Patent: August 25, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Tae-Gon Noh, Byung-Hoon Cho
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Patent number: 10352265Abstract: A method of detecting a defeat device includes: determining turbo operation when a turbocharger of a vehicle is operated; determining flow rate of the air to be applied to an intake manifold wherein it is determined whether which flow rate out of a first flow rate of the air passing through a throttle valve and a second flow rate of the air measured by a hot-film air mass flow (HFM) sensor is used as the flow rate of the intake manifold; determining whether pressure in the intake manifold is in a normal range based on the flow rate of the intake manifold; and determining that the defeat device is installed if it is determined that the pressure in the intake manifold is not in the normal range and storing information of the defeat device.Type: GrantFiled: December 5, 2017Date of Patent: July 16, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Tae-Gon Noh
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Publication number: 20190178178Abstract: A method for controlling an air-fuel ratio in an idle purge-off mode is provided. The method includes stopping feedback for an amount of fuel for a particular period of time when idle purging is terminated and performing freeze control with a constant lambda control value.Type: ApplicationFiled: November 13, 2018Publication date: June 13, 2019Inventors: Tae-Gon Noh, Seung-Mook You
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Publication number: 20190112993Abstract: A method of controlling an engine during idle purge of a canister includes: determining whether current operation information of a vehicle satisfies an idle purge condition, determining whether canister purge learning time performed during a part load condition is a set time or more when a purge operation condition is satisfied, and performing idle purge of the canister when the canister purge learning time performed during the part load condition is the set time or more.Type: ApplicationFiled: December 12, 2017Publication date: April 18, 2019Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Tae-Gon Noh, Byung-Hoon Cho
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Publication number: 20180171922Abstract: A method of detecting a defeat device includes: determining turbo operation when a turbocharger of a vehicle is operated; determining flow rate of the air to be applied to an intake manifold wherein it is determined whether which flow rate out of a first flow rate of the air passing through a throttle valve and a second flow rate of the air measured by a hot-film air mass flow (HFM) sensor is used as the flow rate of the intake manifold; determining whether pressure in the intake manifold is in a normal range based on the flow rate of the intake manifold; and determining that the defeat device is installed if it is determined that the pressure in the intake manifold is not in the normal range and storing information of the defeat device.Type: ApplicationFiled: December 5, 2017Publication date: June 21, 2018Inventor: Tae-Gon NOH
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Patent number: 8754356Abstract: Provided is a single photon detector and a photon number detector which use an APD and include an auxiliary signal generator, a light receiving element, a mixer, and a determiner. The auxiliary signal generator generates an auxiliary signal. The light receiving element receives a photon to output an electric signal. The mixer receives and mixes an output signal of the light receiving element and the auxiliary signal. The determiner determines whether the photon is received or the number of received photons. The single photon detector and photon number resolving detector detect an avalanche of an amplitude less than the amplitude of a capacitive response. A probability that an after pulse is generated can be reduced. A photon count rate is enhanced. The influence on the waveform of the gate signal can be decreased. The frequency of the gate signal can be continuously changed.Type: GrantFiled: September 30, 2011Date of Patent: June 17, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Seok-Beom Cho, Tae-Gon Noh
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Publication number: 20140068765Abstract: the present invention provides a method for authenticating a user in a multiparty quantum communication comprising: generating l quantum entangled states with N particles and transmitting each particle of the l quantum entangled states to N users, by a quantum communication server, wherein the N is a natural number larger than 2; determining, by the quantum communication server, whether a disguised attacker exists among N users on the basis of a first error rate calculated by using n quantum states randomly selected from the l quantum states possessed by the users respectively and a previously shared secret key in each of the users; and controlling, by the quantum communication server, each of the users to generate a new secret key using mk quantum states and replace the previously shared secret key with the new secret key.Type: ApplicationFiled: December 17, 2010Publication date: March 6, 2014Applicant: Electronics and Telecommunications Research InstituteInventors: Jeong-Woon CHOI, Ku-Young CHANG, Tae-Gon NOH, Dong-Pyo CHI, Soo-Joon LEE
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Patent number: 8600051Abstract: Provided are a system and a method for quantum cryptography. The method includes generating the same quantum cryptography key in a transmitter and a receiver by measuring a composite-quantum-system made of a plurality of sub-quantum-systems in each of the transmitter and the receiver connected to each other through a quantum channel, wherein a part of the sub-quantum-systems is confined within the transmitter in order not to expose the entire composite-quantum-system to an outside of the transmitter and the composite-quantum-system cannot be determined without disturbing the composite-quantum-system at the outside of the transmitter.Type: GrantFiled: September 24, 2008Date of Patent: December 3, 2013Assignee: Electronics and Telecommunications Research InstituteInventor: Tae-Gon Noh
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Patent number: 8477939Abstract: Provided are an apparatus for receiving a quantum cryptographic key and an apparatus for transmitting and receiving a quantum cryptographic key at high speed without polarization drift of an optical pulse signal and phase drift of an interferometer. The apparatus for receiving a quantum key includes: a polarization-insensitive optical phase modulator parts for receiving an optical pulse signal, and modulating and outputting a phase of the optical pulse signal without being affected by the polarization state of the optical pulse signal; an asymmetric Mach-Zehnder interferometer for causing interference in and outputting the optical pulse signal received from the polarization-insensitive optical phase modulator parts; and a photon detectors for detecting the optical pulse signal received from the asymmetric Mach-Zehnder interferometer.Type: GrantFiled: November 28, 2007Date of Patent: July 2, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Chun Ju Youn, Tae Gon Noh
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Patent number: 8265279Abstract: Provided is a polarization coding quantum cryptography system. The quantum cryptography includes a light source, a quantum channel, an optical path selector, and a path-dependent polarization selector. The light source generates a signal light. The quantum channel is used as a path to transmit the signal light to a receiver unit. The optical path selector is disposed between the light source and the quantum channel to transmit the signal light to one of a plurality of propagation paths. The path-dependent polarization selector is disposed between the optical path selector and the quantum channel. Herein, the path-dependent polarization selector is configured to determine the polarization direction of the signal light according to the propagation path of the signal light.Type: GrantFiled: July 7, 2009Date of Patent: September 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Chun-Ju Youn, Tae-Gon Noh
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Publication number: 20120085891Abstract: Provided is a single photon detector and a photon number detector which use an APD and include an auxiliary signal generator, a light receiving element, a mixer, and a determiner The auxiliary signal generator generates an auxiliary signal. The light receiving element receives a photon to output an electric signal. The mixer receives and mixes an output signal of the light receiving element and the auxiliary signal. The determiner determines whether the photon is received or the number of received photons. The single photon detector and photon number resolving detector detect an avalanche of an amplitude less than the amplitude of a capacitive response. A probability that an after pulse is generated can be reduced. A photon count rate is enhanced. The influence on the waveform of the gate signal can be decreased. The frequency of the gate signal can be continuously changed.Type: ApplicationFiled: September 30, 2011Publication date: April 12, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seok-Beom CHO, Tae-Gon Noh
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Patent number: 8116636Abstract: Provided are an auto-compensating quantum cryptography transceiver and method of transmitting a quantum cryptography key at a high speed. A quantum cryptography transmitter includes a wavelength converter, an optical attenuator, an optical phase modulator, and a Faraday mirror. A quantum cryptography receiver includes a polarization beam splitter, an optical coupler, an optical filter, and a photon detector. Thus, a limit of a transmission rate caused by Rayleigh scattering of an optical fiber can be overcome.Type: GrantFiled: December 6, 2006Date of Patent: February 14, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Chun Ju Youn, Tae Gon Noh, Jong Cheol Hong, Heon Oh Kim, Taehyoung Zyung
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Patent number: 8026508Abstract: Provided are a semiconductor device and a method of fabricating the same. The semiconductor device includes: a single electron box including a first quantum dot, a charge storage gate on the first quantum dot, and a first gate electrode on the charge storage gate, the charge storage gate exchanging charges with the first quantum dot, the first gate electrode adjusting electric potential of the first quantum dot; and a single electron transistor including a second quantum dot below the first quantum dot, a source, a drain, and a second gate electrode below the second quantum dot, the second quantum dot being capacitively coupled to the first quantum dot, the source contacting one side of the second quantum dot, the drain contacting the other side facing the one side, the second gate electrode adjusting electric potential of the second quantum dot.Type: GrantFiled: July 7, 2009Date of Patent: September 27, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Myung-Sim Jun, Moon-Gyu Jang, Tae-Gon Noh, Tae-Moon Roh
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Publication number: 20110075839Abstract: Provided are a system and a method for quantum cryptography. The method includes generating the same quantum cryptography key in a transmitter and a receiver by measuring a composite-quantum-system made of a plurality of sub-quantum-systems in each of the transmitter and the receiver connected to each other through a quantum channel, wherein a part of the sub-quantum-systems is confined within the transmitter in order not to expose the entire composite-quantum-system to an outside of the transmitter and the composite-quantum-system cannot be determined without disturbing the composite-quantum-system at the outside of the transmitter.Type: ApplicationFiled: September 24, 2008Publication date: March 31, 2011Applicant: Electronics and Telecommunications Research InstituteInventor: Tae-Gon Noh
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Publication number: 20100328666Abstract: A photon detection apparatus includes an optical divider splitting incident signal light by polarization components, an optical mixer mixing pump light with the signal light output from the optical divider, an up-converter up-converting a frequency of the mixed signal light including the pump light, and an optical detector detecting the up-converted signal light.Type: ApplicationFiled: July 4, 2008Publication date: December 30, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Tae-Gon Noh, Seok-Beom Cho