Patents by Inventor Chang Dae Kim
Chang Dae Kim 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: 11947463Abstract: Disclosed herein is an apparatus for managing disaggregated memory, which is located in a virtual machine in a physical node. The apparatus is configured to select, depending on the proportion of valid pages, direct transfer between remote memory units or indirect transfer via local memory for each of the memory pages of the source remote memory to be migrated, among at least one remote memory unit used by the virtual machine, to transfer the memory pages of the source remote memory to target remote memory based on the direct transfer or the indirect transfer, and to release the source remote memory.Type: GrantFiled: January 24, 2023Date of Patent: April 2, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kwang-Won Koh, Chang-Dae Kim, Kang-Ho Kim
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Patent number: 11849005Abstract: Disclosed herein are a method and apparatus for accelerating network transmission in a memory-disaggregated environment. The method for accelerating network transmission in a memory-disaggregated environment includes copying transmission data to a transmission buffer of the computing node, when a page fault occurs during copy of the transmission data, identifying a location at which the transmission data is stored, setting a node in which a largest amount of transmission data is stored as a transmission node, and sending a transmission command to the transmission node.Type: GrantFiled: December 6, 2022Date of Patent: December 19, 2023Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, SYSGEAR CO., LTD.Inventors: Kwang-Won Koh, Kang-Ho Kim, Chang-Dae Kim, Tae-Hoon Kim, Sang-Ho Eom
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Publication number: 20230305964Abstract: Disclosed herein are a method and apparatus for verifying integrity in a memory-disaggregated environment. The method for verifying integrity in a memory-disaggregated environment includes receiving write data and multiple hash values generated based on write data from a remote memory, and verifying integrity of the write data based on the write data and the hash values, wherein verifying the integrity of the write data comprises selecting a hash value for the integrity verification based on an access latency of the remote memory.Type: ApplicationFiled: March 24, 2023Publication date: September 28, 2023Applicants: Electronics and Telecommunications Research Institute, SYSGEAR CO., LTD.Inventors: Tae-Hoon KIM, Kwang-Won KOH, Kang-Ho KIM, Chang-Dae KIM, Sang-Ho EOM
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Publication number: 20230305721Abstract: Disclosed herein is a method for memory management in a memory disaggregation environment. The method includes generating virtual memory based on multiple first memory devices, determining whether a condition for allocation acceleration is satisfied by the first memory devices, and allocating a memory page to the first memory devices based on whether the condition for allocation acceleration is satisfied.Type: ApplicationFiled: March 24, 2023Publication date: September 28, 2023Applicants: Electronics and Telecommunications Research Institute, SYSGEAR CO., LTD.Inventors: Chang-Dae KIM, Kwang-Won KOH, Kang-Ho KIM, Tae-Hoon KIM, Sang-Ho EOM
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Publication number: 20230196157Abstract: A quantum simulation apparatus according to an embodiment of the present disclosure includes a quantum circuit distributor configured to receive and transfer a plurality of quantum circuits, and a multi-quantum register controller configured to control independent allocation and execution of the input quantum circuits into multi-quantum registers supporting a reduced quantum state space, wherein the multi-quantum register provides the reduced quantum state space with respect to a real quantum state having a physical reality with an amplitude value that is not 0 in a wide-area quantum state space.Type: ApplicationFiled: July 20, 2022Publication date: June 22, 2023Applicant: Electronics and Telecommunications Research InstituteInventors: Ki Sung JIN, Gyu Il CHA, Chang Dae KIM
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Publication number: 20230176893Abstract: Disclosed herein are a method and apparatus for migrating a virtual machine in a memory-disaggregated environment. The method for migrating a virtual machine in a memory-disaggregated environment includes determining whether to migrate a virtual machine based on a number of accesses to a remote memory, establishing a migration policy for the virtual machine based on a remote memory access pattern, and determining a migration destination node based on the migration policy, wherein the migration policy includes a first migration policy corresponding to a case where the remote memory access pattern is sequential, and a second migration policy corresponding to a case where the remote memory access pattern is non-sequential.Type: ApplicationFiled: December 6, 2022Publication date: June 8, 2023Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, SYSGEAR CO., LTD.Inventors: Kwang-Won KOH, Kang-Ho KIM, Chang-Dae KIM, Tae-Hoon KIM, Sang-Ho EOM
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Publication number: 20230179679Abstract: Disclosed herein are a method and apparatus for accelerating network transmission in a memory-disaggregated environment. The method for accelerating network transmission in a memory-disaggregated environment includes copying transmission data to a transmission buffer of the computing node, when a page fault occurs during copy of the transmission data, identifying a location at which the transmission data is stored, setting a node in which a largest amount of transmission data is stored as a transmission node, and sending a transmission command to the transmission node.Type: ApplicationFiled: December 6, 2022Publication date: June 8, 2023Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, SYSGEAR CO., LTD.Inventors: Kwang-Won KOH, Kang-Ho KIM, Chang-Dae KIM, Tae-Hoon KIM, Sang-Ho EOM
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Patent number: 11586549Abstract: Disclosed herein is an apparatus for managing disaggregated memory, which is located in a virtual machine in a physical node. The apparatus is configured to select, depending on the proportion of valid pages, direct transfer between remote memory units or indirect transfer via local memory for each of the memory pages of the source remote memory to be migrated, among at least one remote memory unit used by the virtual machine, to transfer the memory pages of the source remote memory to target remote memory based on the direct transfer or the indirect transfer, and to release the source remote memory.Type: GrantFiled: May 19, 2021Date of Patent: February 21, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kwang-Won Koh, Chang-Dae Kim, Kang-Ho Kim
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Publication number: 20220392578Abstract: Disclosed herein are an apparatus and method for accelerating genome sequence alignment. The method may include loading an essential index for a reference genome into memory, loading an additional index corresponding to the amount of available memory into memory, reading a target nucleotide sequence for which genome sequence alignment is to be performed, checking whether an exact match of the target nucleotide sequence is present in the reference genome based on the additional index, and generating a result of alignment of the target nucleotide sequence using the location of the exact match of the target nucleotide sequence in the reference genome when an exact match is found.Type: ApplicationFiled: June 3, 2022Publication date: December 8, 2022Inventors: Chang-Dae KIM, Kwang-Won KOH, Kang-Ho KIM, Tae-Hoon KIM
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Publication number: 20210390056Abstract: Disclosed herein is an apparatus for managing disaggregated memory, which is located in a virtual machine in a physical node. The apparatus is configured to select, depending on the proportion of valid pages, direct transfer between remote memory units or indirect transfer via local memory for each of the memory pages of the source remote memory to be migrated, among at least one remote memory unit used by the virtual machine, to transfer the memory pages of the source remote memory to target remote memory based on the direct transfer or the indirect transfer, and to release the source remote memory.Type: ApplicationFiled: May 19, 2021Publication date: December 16, 2021Inventors: Kwang-Won KOH, Chang-Dae KIM, Kang-Ho KIM
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Publication number: 20160326934Abstract: The present disclosure provides a control method for informing a driver when to clean a diesel particulate filter (DPF). The control method for informing a driver when to clean a diesel particulate filter may include informing a driver of the time when to clean the DPF by operating a warning device depending on at least one of a differential pressure of the DPF and engine oil consumption.Type: ApplicationFiled: October 13, 2015Publication date: November 10, 2016Applicant: HYUNDAI MOTOR COMPANYInventor: Chang Dae KIM
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Patent number: 8402754Abstract: An apparatus for purifying exhaust gas may include a CPF device primarily oxidizing hydrocarbon and carbon monoxide in the exhaust gas by using a first DOC, and trapping and regenerating particulate material (PM), a DOC device mounted downstream of the CPF device, secondarily oxidizing the HC and the CO in the primarily oxidized exhaust gas by using a second DOC, and oxidizing nitrogen monoxide into nitrogen dioxide by using the second DOC, a nozzle mounted downstream of the DOC device, and dosing a reducing agent to the exhaust gas secondarily oxidized by the DOC device, and a selective catalytic reduction device mounted downstream of the nozzle, and reducing nitrogen oxide in the exhaust gas into nitrogen gas) by using the NO2 generated in the DOC device and the reducing agent.Type: GrantFiled: November 21, 2008Date of Patent: March 26, 2013Assignee: Hyundai Motor CompanyInventors: Chang Dae Kim, Jim Ha Lee, Ji Ho Cho, Ki Hyung Joo, Jin Woo Choung
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Patent number: 8336295Abstract: An apparatus for reducing nitrogen oxide in an exhaust pipe, may include a nitrogen oxide sensor that is mounted in the exhaust pipe and that measures amount of the nitrogen oxide in exhaust gas, a nozzle that is disposed on the exhaust pipe to be spaced apart from the nitrogen oxide sensor to a downstream side of the nitrogen oxide sensor by a first predetermined length and that injects urea corresponding to the amount of the nitrogen oxide, a mixer that mixes the urea with the exhaust gas and that is disposed at a downstream side of the nozzle on the exhaust pipe to be spaced apart by a second predetermined length from the nozzle, and a de-nitrification catalyst reaction device that is disposed at a downstream side of the mixer on the exhaust pipe, purifies the nitrogen oxide, and includes an inlet portion having a predetermined length.Type: GrantFiled: December 12, 2008Date of Patent: December 25, 2012Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Chang Dae Kim
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Patent number: 8080208Abstract: An exhaust gas purification device that includes a catalytic particulate filter having at least an exhaust gas channel, the exhaust gas channel may include a first channel and a second channel being laterally coupled each other and fluidly communicating therebetween, wherein the exhaust gas is inlet through inlet opening of the first channel and outlet through lower portion of the first channel and/or outlet opening of the second channel, and wherein a first coating layer is formed on an interior surface of the first channel in a longitudinal direction thereof substantially from the inlet opening in a first predetermined length, the first coating layer being coated with a catalyst, and a second coating layer is formed on an interior surface of the second channel in a longitudinal direction thereof substantially from the outlet opening in a second predetermined length, the second coating layer being coated with the catalyst and a third coating is formed on an outside surface of a plug closing the outlet end ofType: GrantFiled: January 22, 2009Date of Patent: December 20, 2011Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Chang Dae Kim
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Publication number: 20100058745Abstract: An exhaust gas purification device that includes a catalytic particulate filter having at least an exhaust gas channel, the exhaust gas channel may include a first channel and a second channel being laterally coupled each other and fluidly communicating therebetween, wherein the exhaust gas is inlet through inlet opening of the first channel and outlet through lower portion of the first channel and/or outlet opening of the second channel, and wherein a first coating layer is formed on an interior surface of the first channel in a longitudinal direction thereof substantially from the inlet opening in a first predetermined length, the first coating layer being coated with a catalyst, and a second coating layer is formed on an interior surface of the second channel in a longitudinal direction thereof substantially from the outlet opening in a second predetermined length, the second coating layer being coated with the catalyst.Type: ApplicationFiled: January 22, 2009Publication date: March 11, 2010Applicants: Hyundai Motor Company, Kia Motors CorporationInventor: Chang Dae KIM
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Publication number: 20090241521Abstract: An apparatus for purifying exhaust gas may include a CPF device primarily oxidizing hydrocarbon and carbon monoxide in the exhaust gas by using a first DOC, and trapping and regenerating particulate material (PM), a DOC device mounted downstream of the CPF device, secondarily oxidizing the HC and the CO in the primarily oxidized exhaust gas by using a second DOC, and oxidizing nitrogen monoxide into nitrogen dioxide by using the second DOC, a nozzle mounted downstream of the DOC device, and dosing a reducing agent to the exhaust gas secondarily oxidized by the DOC device, and a selective catalytic reduction device mounted downstream of the nozzle, and reducing nitrogen oxide in the exhaust gas into nitrogen gas) by using the NO2 generated in the DOC device and the reducing agent.Type: ApplicationFiled: November 21, 2008Publication date: October 1, 2009Applicant: HYUNDAI MOTOR COMPANYInventors: CHANG DAE KIM, Jin Ha Lee, Ji Ho Cho, Ki Hyung Joo, Jin Woo Choung
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Publication number: 20090151341Abstract: An apparatus for reducing NOx contained in exhaust gas as an exemplary embodiment of the present invention may include: a DOC device primarily oxidizing an exhaust materials containing THC and CO in the exhaust gas by using a first DOC; a CPF device mounted downstream of the DOC device to receive the exhaust gas primarily oxidized by the DOC device, further oxidizing the exhaust materials containing the THC and the CO by heat generated during the primary oxidation and an oxidizing agent coated therein, and oxidizing NO in the exhaust gas into NO2 by using the generated heat and the oxidizing agent coated therein; a nozzle mounted downstream of the CPF device, and dosing a reductant to the exhaust gas; and a SCR device mounted downstream of the nozzle, and reducing NOx in the exhaust gas into N2 by using the NO2 generated in the CPF device and the reductant.Type: ApplicationFiled: September 11, 2008Publication date: June 18, 2009Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Chang Dae Kim, Jin Ha Lee, Ji Ho Cho
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Publication number: 20090151334Abstract: An apparatus for reducing nitrogen oxide in an exhaust pipe, may include a nitrogen oxide sensor that is mounted in the exhaust pipe and that measures amount of the nitrogen oxide in exhaust gas, a nozzle that is disposed on the exhaust pipe to be spaced apart from the nitrogen oxide sensor to a downstream side of the nitrogen oxide sensor by a first predetermined length and that injects urea corresponding to the amount of the nitrogen oxide, a mixer that mixes the urea with the exhaust gas and that is disposed at a downstream side of the nozzle on the exhaust pipe to be spaced apart by a second predetermined length from the nozzle, and a de-nitrification catalyst reaction device that is disposed at a downstream side of the mixer on the exhaust pipe, purifies the nitrogen oxide, and includes an inlet portion having a predetermined length.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Chang Dae KIM
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Publication number: 20050262834Abstract: A method for regeneration of a diesel soot-filtering device includes the steps of inputting a flow resistance value that varies depending upon the amount of soot accumulated in the soot-filtering device; calculating the accumulated mileage and the flow resistance value (K); primarily compulsorily regenerating the diesel soot-filtering device if the mileage falls within a range from 200 to 10,000 km; and secondarily compulsorily regenerating the diesel soot-filtering device if the flow resistance value (K) falls within a range from 0.001 to 0.07.Type: ApplicationFiled: June 1, 2005Publication date: December 1, 2005Inventor: Chang Dae Kim