Patents by Inventor Tae Ho Ahn
Tae Ho Ahn 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: 20240107002Abstract: A method for coding image information includes generating prediction information by predicting information on a current coding unit, and determining whether the information on the current coding unit is the same as the prediction information. When the information on the current coding unit is the same as the prediction information, a flag indicating that the information on the current coding unit is the same as the prediction information is coded and transmitted. When the information on the current coding unit is not the same as the prediction information, a flag indicating that the information on the current coding unit is not the same as the prediction information and the information on the current coding unit are coded and transmitted.Type: ApplicationFiled: December 6, 2023Publication date: March 28, 2024Applicants: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee UniversityInventors: Se Yoon JEONG, Hui Yong KIM, Sung Chang LIM, Jin Ho LEE, Ha Hyun LEE, Jong Ho KIM, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Gwang Hoon PARK, Kyung Yong KIM, Tae Ryong KIM, Han Soo LEE
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Patent number: 11473516Abstract: A method for improving accuracy of correction of fuel quantity at the time when a recirculation valve (RCV) is opened, may include a step of correcting injection amount of fuel based on consideration factors when the RCV is operated to be opened. The consideration factors include property values of a flow path of the RCV, the flow path being mounted to an intake pipe to connect between a front end of a compressor close to the atmosphere and a rear end of the compressor adjacent to combustion chambers, a first calculation value obtained by calculating amount of air to be introduced into the combustion chambers after circulating from the flow path of the RCV to the intake pipe, and a second calculation value obtained by calculating amount of hydrocarbon to be introduced into the flow path of the RCV by purging evaporative gas.Type: GrantFiled: November 4, 2019Date of Patent: October 18, 2022Assignees: Hyundai Motor Company, KIA Motors CorporationInventor: Tae-Ho Ahn
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Patent number: 11168626Abstract: The present disclosure relates to a method for removing residual purge gas in operating an active purge system and includes determining evaporation gas purge stop in a control unit, closing a PCSV mounted on a purge line connecting a canister and an intake pipe, and determining whether all of the evaporation gas flowed into the intake pipe is flowed into a combustion chamber, so that all of the evaporation gas flowed into an intake pipe during travelling can be flowed into and combusted in the combustion chamber.Type: GrantFiled: December 3, 2019Date of Patent: November 9, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Tae-Ho Ahn, Jeong-Ho Seo, Young-Kyu Oh
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Patent number: 10914271Abstract: A leak diagnosis system using a purge pump of an active purge system is provided. The leak diagnosis system includes a canister for adsorbing an evaporated gas from a fuel tank, a purge line for connecting the canister with an intake pipe, the purge pump and a purge control solenoid valve mounted to the purge line, and an auxiliary canister and an auxiliary canister control valve mounted to the purge line and located between the intake pipe and the purge control solenoid valve.Type: GrantFiled: April 24, 2020Date of Patent: February 9, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Tae-Ho Ahn
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Patent number: 10890127Abstract: A purge concentration calculation control method in an active purge system for purging a fuel evaporation gas by using a purge pump may include: calculating the purge concentration by using the RPM of the purge pump, and the pressure at a rear end of the purge pump; and controlling a purge valve in order to satisfy a target purge flow rate and the purge fuel amount by using the calculated purge concentration.Type: GrantFiled: November 4, 2019Date of Patent: January 12, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Tae-Ho Ahn
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Patent number: 10808656Abstract: An intake and exhaust system for preventing generation of condensed water may include: an exhaust gas recirculation (EGR) system circulating some of combustion gas from an exhaust pipe to an intake pipe; an active purging system compressing and supplying evaporation gas generated from a fuel tank to the intake pipe; and a controller to control the EGR system and the active purging system. In particular, the controller calculates a saturated water vapor pressure based on temperature at a position between the EGR system and the intake pipe, and calculates a saturated water vapor pressure based on temperature of the intake pipe and then compares one of the two saturated water vapor pressures with a water vapor pressure of intake air so as to reduce an EGR rate of the EGR system or a purging rate of the active purging system based on the comparison result.Type: GrantFiled: November 4, 2019Date of Patent: October 20, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Young-Kyu Oh, Tae-Ho Ahn, Keum-Jin Park
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Publication number: 20200271064Abstract: A method for improving accuracy of correction of fuel quantity at the time when a recirculation valve (RCV) is opened, may include a step of correcting injection amount of fuel based on consideration factors when the RCV is operated to be opened. The consideration factors include property values of a flow path of the RCV, the flow path being mounted to an intake pipe to connect between a front end of a compressor close to the atmosphere and a rear end of the compressor adjacent to combustion chambers, a first calculation value obtained by calculating amount of air to be introduced into the combustion chambers after circulating from the flow path of the RCV to the intake pipe, and a second calculation value obtained by calculating amount of hydrocarbon to be introduced into the flow path of the RCV by purging evaporative gas.Type: ApplicationFiled: November 4, 2019Publication date: August 27, 2020Applicants: Hyundai Motor Company, KIA Motors CorporationInventor: Tae-Ho AHN
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Publication number: 20200271065Abstract: The present disclosure relates to a method for removing residual purge gas in operating an active purge system and includes determining evaporation gas purge stop in a control unit, closing a PCSV mounted on a purge line connecting a canister and an intake pipe, and determining whether all of the evaporation gas flowed into the intake pipe is flowed into a combustion chamber, so that all of the evaporation gas flowed into an intake pipe during travelling can be flowed into and combusted in the combustion chamber.Type: ApplicationFiled: December 3, 2019Publication date: August 27, 2020Inventors: Tae-Ho Ahn, Jeong-Ho Seo, Young-Kyu Oh
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Publication number: 20200191072Abstract: A purge concentration calculation control method in an active purge system for purging a fuel evaporation gas by using a purge pump may include: calculating the purge concentration by using the RPM of the purge pump, and the pressure at a rear end of the purge pump; and controlling a purge valve in order to satisfy a target purge flow rate and the purge fuel amount by using the calculated purge concentration.Type: ApplicationFiled: November 4, 2019Publication date: June 18, 2020Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Tae-Ho AHN
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Publication number: 20200182206Abstract: An intake and exhaust system for preventing generation of condensed water may include: an exhaust gas recirculation (EGR) system circulating some of combustion gas from an exhaust pipe to an intake pipe; an active purging system compressing and supplying evaporation gas generated from a fuel tank to the intake pipe; and a controller to control the EGR system and the active purging system. In particular, the controller calculates a saturated water vapor pressure based on temperature at a position between the EGR system and the intake pipe, and calculates a saturated water vapor pressure based on temperature of the intake pipe and then compares one of the two saturated water vapor pressures with a water vapor pressure of intake air so as to reduce an EGR rate of the EGR system or a purging rate of the active purging system based on the comparison result.Type: ApplicationFiled: November 4, 2019Publication date: June 11, 2020Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Young-Kyu OH, Tae-Ho Ahn, Keum-Jin Park
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Patent number: 10605176Abstract: A method for controlling an engine variable valve timing of a hybrid electric vehicle, may include providing a cam position setting table of a fuel efficiency prioritized intake/exhaust cam control mode, and a cam position setting table of a normal intake/exhaust cam control mode, the cam position setting table of the fuel efficiency prioritized intake/exhaust cam control mode being differentiated from the cam position setting table of the normal intake/exhaust cam control mode; selecting one of the fuel efficiency prioritized intake/exhaust cam control mode and the normal intake/exhaust cam control mode by a canister loading amount and whether or not diagnosis of an intake cam and diagnosis of an exhaust cam are completed; and determining position control values of the intake and exhaust cams by using the cam position setting table and then controlling positions of the intake cam and the exhaust cam by the determined position control values.Type: GrantFiled: September 5, 2017Date of Patent: March 31, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Se Geun Kim, Tae Ho Ahn, Dong Shin, Dong Jun Shin
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Publication number: 20180171882Abstract: A method for controlling an engine variable valve timing of a hybrid electric vehicle, may include providing a cam position setting table of a fuel efficiency prioritized intake/exhaust cam control mode, and a cam position setting table of a normal intake/exhaust cam control mode, the cam position setting table of the fuel efficiency prioritized intake/exhaust cam control mode being differentiated from the cam position setting table of the normal intake/exhaust cam control mode; selecting one of the fuel efficiency prioritized intake/exhaust cam control mode and the normal intake/exhaust cam control mode by a canister loading amount and whether or not diagnosis of an intake cam and diagnosis of an exhaust cam are completed; and determining position control values of the intake and exhaust cams by using the cam position setting table and then controlling positions of the intake cam and the exhaust cam by the determined position control values.Type: ApplicationFiled: September 5, 2017Publication date: June 21, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Se Geun KIM, Tae Ho Ahn, Dong Shin, Dong Jun Shin
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Patent number: 8105433Abstract: It is an object of the invention to provide a cement admixture that can form concrete having a sufficient self-healing capability and satisfactorily maintaining its self-healing capability for prolonged periods. The cement admixture of the invention contains an expanding material and an alumina-silicate with swelling properties. The cement admixture is combined with cement to form a cement composition. The cement composition is mixed with water and an aggregate to provide concrete with an excellent self-healing capability.Type: GrantFiled: February 13, 2009Date of Patent: January 31, 2012Assignees: The University of Tokyo, National University Corporation Yokohama National University, East Japan Railway CompanyInventors: Toshiharu Kishi, Tae-Ho Ahn, Akira Hosoda, Kaoru Kobayashi
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Publication number: 20110132231Abstract: It is an object of the invention to provide a cement admixture that can form concrete having a sufficient self-healing capability and satisfactorily maintaining its self-healing capability for prolonged periods. The cement admixture of the invention contains an expanding material and an alumina-silicate with swelling properties. The cement admixture is combined with cement to form a cement composition. The cement composition is mixed with water and an aggregate to provide concrete with an excellent self-healing capability.Type: ApplicationFiled: February 13, 2009Publication date: June 9, 2011Applicants: The University of Tokyo, National University Corporation Yokohama National University, East Japan Railway CompanyInventors: Toshiharu Kishi, Tae-Ho Ahn, Akira Hosoda, Kaoru Kobayashi
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Patent number: 7072644Abstract: The present invention relates to a method for providing an arbitrary sound chosen by a subscriber instead of a conventional RBT, more particularly, to a method for providing a caller with an arbitrary sound chosen by the caller instead of an RBT in case that a called is not a subscriber of a called-based RBT replacement service. The present method comprises: a first step, conducted by an exchanger when a call is received from a terminal, of requesting a first trunk connection to other telephone communication network while requesting a second trunk connection to a sound providing means if it is confirmed that the calling terminal has subscribed to RBT replacement service and the called terminal is a subscriber of said other telephone communication network; and a second step, conducted by the sound providing means, of providing the calling terminal with an RBT-replacing sound set for the calling terminal through the exchanger.Type: GrantFiled: September 9, 2003Date of Patent: July 4, 2006Assignee: SK Telecom Co., Ltd.Inventors: Tae Ho Ahn, Yeong Tae No, Ok Ryul Yang, Jin Yong Choi