Patents by Inventor Hyun Jin Moon
Hyun Jin Moon 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: 11972136Abstract: A method of operating a memory system, which includes a memory controller and at least one non-volatile memory, includes storing, in the memory system, temperature-dependent performance level information received from a host disposed external to the memory system, setting an operation performance level of the memory system to a first performance level, operating the memory controller and the at least one non-volatile memory device according to the first performance level, detecting an internal temperature of the memory system, and changing the operation performance level of the memory system to a second performance level that is different from the first performance level. The operation performance level is changed by the memory controller of the memory system, and changing the operation performance level is based on the temperature-dependent performance level information and the detected internal temperature.Type: GrantFiled: October 12, 2022Date of Patent: April 30, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun-Seok Kim, Dae-Ho Kim, Yong-Geun Oh, Sung-Jin Moon
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Publication number: 20240130230Abstract: The present disclosure relates to a plurality of host materials, organic electroluminescent compounds, and organic electroluminescent devices comprising the same. By comprising specific combinations of compounds according to the present disclosure as the plurality of host materials or by comprising a compound according to the present disclosure, it is possible to provide organic electroluminescent devices having improved lifespan characteristics compared to conventional organic electroluminescent devices.Type: ApplicationFiled: August 8, 2023Publication date: April 18, 2024Inventors: Doo-Hyeon MOON, DaiKyu KIM, Hyo-Jung LEE, Yea-Mi SONG, Kyoung-Jin PARK, Hyun-Ju KANG, Ga-Won LEE, Mi-Ja LEE, Kyung-Hoon CHOI
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Patent number: 11960752Abstract: A method of operating a memory system, which includes a memory controller and at least one non-volatile memory, includes storing, in the memory system, temperature-dependent performance level information received from a host disposed external to the memory system, setting an operation performance level of the memory system to a first performance level, operating the memory controller and the at least one non-volatile memory device according to the first performance level, detecting an internal temperature of the memory system, and changing the operation performance level of the memory system to a second performance level that is different from the first performance level. The operation performance level is changed by the memory controller of the memory system, and changing the operation performance level is based on the temperature-dependent performance level information and the detected internal temperature.Type: GrantFiled: June 24, 2021Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun-Seok Kim, Dae-Ho Kim, Yong-Geun Oh, Sung-Jin Moon
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Publication number: 20240090324Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. An organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan properties compared to a conventional organic electroluminescent device can be provided by including the specific combination of compounds according to the present disclosure as a plurality of host materials or by including the compound according to the present disclosure.Type: ApplicationFiled: July 18, 2023Publication date: March 14, 2024Inventors: Hyo-Jung LEE, Yea-Mi SONG, Hyun-Ju KANG, Mi-Ja LEE, Doo-Hyeon MOON, Kyoung-Jin PARK, Du-Yong PARK, DaiKyu KIM
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Publication number: 20240074312Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising at least one compound represented by formula 1 and a second host material comprising at least one compound represented by formula 2, and an organic electroluminescent device comprising the same. An organic electroluminescent device having significantly improved lifetime properties is provided by comprising a specific combination of compounds according to the present disclosure as host materials.Type: ApplicationFiled: July 13, 2023Publication date: February 29, 2024Inventors: Hyun-Ju KANG, Hyo-Jung LEE, Doo-Hyeon MOON, Kyoung-Jin PARK, Yea-Mi SONG, Mi-Ja LEE, DaiKyu KIM, Hyun KIM
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Patent number: 9336251Abstract: Systems and methods for consolidating workload on one or more computing devices, comprising: generating tenant performance profiles for at least one of a buffer memory size and a buffer warmness; assigning one or more tenants to a database management system (DBMS) instance; configuring the one or more tenants to minimize a total server count needed to host the one or more tenants; and reducing the total server count by adjusting of buffer sizes while satisfying Service Level Agreement (SLA) requirements.Type: GrantFiled: November 21, 2012Date of Patent: May 10, 2016Assignee: NEC CorporationInventors: Hatem Abdelghani Mahmoud, Hyun Jin Moon, Yun Chi, Vahit Hakan Hacigumus
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Patent number: 8898307Abstract: A computer implemented method of workload scheduling under two different types of Service Level Agreements (SLAs), namely soft and hard SLA which employ both a deadline- and cost-aware scheduler called iCBS-DH. The scheduler is evaluated against deadline and cost performance of various scheduling policies under a large range of SLA cost function and deadline types.Type: GrantFiled: June 16, 2012Date of Patent: November 25, 2014Assignee: NEC Laboratories America, Inc.Inventors: Hyun Jin Moon, Yun Chi, Vahit Hakan Hacigumus
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Patent number: 8880477Abstract: Methods and systems for database migration from a multitenant database include taking a snapshot of an original database to be migrated with a hot backup process, such that the database is still capable of answering queries during the hot backup process; maintaining a query log of all queries to the tenant database after the hot backup process begins; initializing a new database at a target server using the snapshot; replaying the query log synchronize the new database with the original database; and answering new queries with the new database and not the original database.Type: GrantFiled: October 4, 2012Date of Patent: November 4, 2014Assignee: NEC Laboratories America, Inc.Inventors: Sean Barker, Yun Chi, Hyun Jin Moon, Vahit Hakan Hacigumus
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Patent number: 8776076Abstract: An efficient cost-based scheduling method called incremental cost-based scheduling, iCBS, maps each job, based on its arrival time and SLA function, to a fixed point in the dual space of linear functions. Due to this mapping, in the dual space, the job will not change their locations over time. Instead, at the time of selecting the next job with the highest priority to execute, a line with appropriate angle in the query space is used to locate the current job with the highest CBS score in logarithmic time. Because only those points that are located on the convex hull in the dual space can be chosen, a dynamic convex hull maintaining method incrementally maintains the job with the highest CBS score over time.Type: GrantFiled: January 5, 2011Date of Patent: July 8, 2014Assignee: NEC Laboratories America, Inc.Inventors: Yun Chi, Hyun Jin Moon, Vahit Hakan Hacigumus
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Patent number: 8762323Abstract: A swap-based multitenant database load balancing (SWAT) invention finds an optimal swap set that eliminates hotspots, and finds a sequencing and parallelization of swap executions for the multitenant database.Type: GrantFiled: October 10, 2011Date of Patent: June 24, 2014Assignee: NEC Laboratories America, Inc.Inventors: Hyun Jin Moon, Wang-Pin Hsiung, Vahit Hakan Hacigumus, Yun Chi
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Patent number: 8762997Abstract: Systems and methods are disclosed to schedule jobs in a cloud computing infrastructure by receiving in a first queue jobs with deadlines or constraints specified in a hard service level agreement (SLA); receiving in a second queue jobs with a penalty cost metric specified in a soft SLA; and minimizing both constraint violation count and total penalty cost in the cloud computing infrastructure by identifying jobs with deadlines in the first queue and delaying jobs in the first queue within a predetermined slack range in favor of jobs in the second queue to improve the penalty cost metric.Type: GrantFiled: June 18, 2010Date of Patent: June 24, 2014Assignee: NEC Laboratories America, Inc.Inventors: Hyun Jin Moon, Yun Chi, V. Hakan Hacigumus
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Publication number: 20130166750Abstract: A computer implemented method of workload scheduling under two different types of Service Level Agreements (SLAs), namely soft and hard SLA which employ both a deadline- and cost-aware scheduler called iCBS-DH. The scheduler is evaluated against deadline and cost performance of various scheduling policies under a large range of SLA cost function and deadline types.Type: ApplicationFiled: June 16, 2012Publication date: June 27, 2013Applicant: NEC Laboratories America, Inc.Inventors: Hyun Jin MOON, Yun CHI, Vahit Hakan HACIGUMUS
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Patent number: 8380738Abstract: A system includes one or more application nodes sending SQL queries to one or more query execution nodes. Each query execution node translates the SQL queries into key-based requests to the storage engine, which comprises one or more storage nodes. The system provides an abstraction layer with an external schema and an internal schema, maps the external schema into the internal schema; and generates one or more microshards for the storage node.Type: GrantFiled: December 20, 2009Date of Patent: February 19, 2013Assignee: NEC Laboratories America, Inc.Inventors: Junichi Tatemura, Arsany Sawires, Hyun Jin Moon, Oliver Po, Wang Pin Hsiung, V. Hakan Hacigumus
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Patent number: 8380557Abstract: Systems and methods are disclosed to consolidate workload on cloud-based computers by co-locating one or more high-penalty tenants on one or more cloud-based servers; reducing service level agreement (SLA) violations by over-provisioning the cloud-based server; and maximizing an SLA profit.Type: GrantFiled: January 5, 2011Date of Patent: February 19, 2013Assignee: NEC Laboratories America, Inc.Inventors: Hyun Jin Moon, Junichi Tatemura, Vahit Hakan Hacigumus, Shenoda Guirguis, Yun Chi
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Patent number: 8359223Abstract: Systems and methods are disclosed to manage resources in a cloud-based computing system by generating a model of a relationship between cloud database resources and an expected profit based on cloud-server system parameters and service level agreements (SLAs) that indicates profits for different system performances, wherein the model comprises a two level optimization/control problem, wherein model receives system metrics, number of replicas, and arrival rate as the multiple input; and dynamically adjusting resource allocation among different customers based on current customer workload and the expected profit to maximize the expected profit for a cloud computing service provider.Type: GrantFiled: January 5, 2011Date of Patent: January 22, 2013Assignee: NEC Laboratories America, Inc.Inventors: Yun Chi, Hyun Jin Moon, V. Hakan Hacigumus, Pengcheng Xiong, Shenghuo Zhu
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Patent number: 8316010Abstract: Systems and methods are disclosed for scheduling one or more queries for execution with one or more cloud computers by applying a service level agreement (SLA) analysis using an SLA-tree data structure to each query in a query queue; using the SLA-tree data structure to determine an overall profit in the query queue; and generating a profit-oriented schedule to select the next query for execution by the cloud computers.Type: GrantFiled: June 18, 2010Date of Patent: November 20, 2012Assignee: NEC Laboratories America, Inc.Inventors: Yun Chi, Hyun Jin Moon, Junichi Tatemura, Vahit Hakan Hacigumus
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Publication number: 20120265741Abstract: Systems and methods are disclosed for a swap-based multitenant database load balancing (SWAT) by finding an optimal swap set that eliminates hotspots, and finding a sequencing and parallelization of swap executions for the multi-tenant database.Type: ApplicationFiled: October 10, 2011Publication date: October 18, 2012Applicant: NEC LABORATORIES AMERICA, INC.Inventors: Hyun Jin Moon, Yun Chi, Wang-Pin Hsiung, Vahit Hakan Hacigumus
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Publication number: 20120066020Abstract: Systems and methods are disclosed to consolidate workload on cloud-based computers by co-locating one or more high-penalty tenants on one or more cloud-based servers; reducing service level agreement (SLA) violations by over-provisioning the cloud-based server; and maximizing an SLA profit.Type: ApplicationFiled: January 5, 2011Publication date: March 15, 2012Applicant: NEC LABORATORIES AMERICA, INC.Inventors: Hyun Jin Moon, Shenoda Guirguis, Yun Chi, Junichi Tatemura, Vahit Hakan Hacigumus
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Publication number: 20120022910Abstract: Systems and methods are disclosed to manage resources in a cloud-based computing system by generating a model of a relationship between cloud database resources and an expected profit based on cloud-server system parameters and service level agreements (SLAs) that indicates profits for different system performances, wherein the model comprises a two level optimization/control problem, wherein model receives system metrics, number of replicas, and arrival rate as the multiple input; and dynamically adjusting resource allocation among different customers based on current customer workload and the expected profit to maximize the expected profit for a cloud computing service provider.Type: ApplicationFiled: January 5, 2011Publication date: January 26, 2012Applicant: NEC LABORATORIES AMERICA, INC.Inventors: Yun Chi, Pengcheng Xiong, Shenghuo Zhu, Hyun Jin Moon, Vahit Hakan Hacigumus
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Publication number: 20120023501Abstract: An efficient cost-based scheduling method called incremental cost-based scheduling, iCBS, maps each job, based on its arrival time and SLA function, to a fixed point in the dual space of linear functions. Due to this mapping, in the dual space, the job will not change their locations over time. Instead, at the time of selecting the next job with the highest priority to execute, a line with appropriate angle in the query space is used to locate the current job with the highest CBS score in logarithmic time. Because only those points that are located on the convex hull in the dual space can be chosen, a dynamic convex hull maintaining method incrementally maintains the job with the highest CBS score over time.Type: ApplicationFiled: January 5, 2011Publication date: January 26, 2012Applicant: NEC LABORATORIES AMERICA, INC.Inventors: Yun Chi, Hyun Jin Moon, Vahit Hakan Hacigumus