Patents by Inventor Hag Young Kim

Hag Young 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).

  • Publication number: 20120166630
    Abstract: Disclosed is a dynamic load balancing system. The dynamic load balancing system includes a resource management master managing bare servers that do not execute services and having a hierarchical structure and a service master dynamically allocating the bare servers to a load balancing server or a service execution server or dynamically releasing the pre-allocated load balancing server or service execution server by the bare servers, in consideration of monitoring information on a state or performance of a server and service requirements to be provided.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Hyun CHO, Hag Young KIM, Ok Gee MIN, Chang Soo KIM, Choon Seo PARK, Song Woo SOK, Yong Ju LEE, Jin Hwan JEONG, Joong Soo LEE
  • Patent number: 8006124
    Abstract: Provided are a large-scale cluster monitoring system and a method for automatically building/restoring the same, which can automatically build a large-scale monitoring system and can automatically build a monitoring environment when a failure occurs in nodes. The large-scale cluster monitoring system includes a CM server, a BD server, GM nodes, NA nodes, and a DB agent. The CM server manages nodes in a large-scale cluster system. The DB server stores monitoring information that is state information of nodes in groups. The GM nodes respectively collect the monitoring information that is the state information of the nodes in the corresponding groups to store the collected monitoring information in the DB server. The NA nodes access the CM server to obtain GM node information and respectively collect the state information of the nodes in the corresponding groups to transfer the collected state information to the corresponding GM nodes.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: August 23, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Choon-Seo Park, Song-Woo Sok, Chang-Soo Kim, Yoo-Hyun Park, Yong-Ju Lee, Jin-Hwan Jeong, Hag-Young Kim
  • Patent number: 7930137
    Abstract: Provided is an availability prediction method for a high availability. The method includes calculating a basic survival probability that the other node survives until a failure on one node of two nodes constituting a cluster is fixed, and determining an optimal number of nodes meeting a preset reference availability probability by calculating an availability probability for a predetermined range of the number of nodes on the basis of the basic survival probability. The method determines the number of nodes in the high availability cluster so as to match a reference availability probability, and is able to accomplish an optimal configuration of a cluster by calculating the availability probabilities for combinations between active node and passive nodes and between head nodes and switches.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: April 19, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong-Ju Lee, Ok-Gee Min, Chang-Soo Kim, Yoo-Hyun Park, Choon-Seo Park, Song-Woo Sok, Jin-Hwan Jeong, Won-Jae Lee, Hag-Young Kim
  • Publication number: 20110084969
    Abstract: Provided are a method and apparatus for obtaining a minimum cost vector for making a skyline object in a multi-dimensional space. The method includes calculating respective vector values having a query point and respective moving points to which the query point is moved as both end points in a multi-dimensional space having a plurality of coordinate axes, and selecting a vector value whose moving point is included in a skyline and has the minimum distance value from the query point as the minimum vector value from among the vector values.
    Type: Application
    Filed: October 6, 2010
    Publication date: April 14, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Choon Seo PARK, Yong Ju LEE, Song Woo Sok, Jin Hwan Jeong, Joong Soo Lee, Jung Hyun Cho, Ok Gee Min, Chang Soo Kim, Hag Young Kim
  • Patent number: 7873609
    Abstract: Provided is a contents distribution management system and method for supporting a plurality of global servers that provide the contents and managing the contents by applying different policies based on the global server and service type of the contents. The inventive system comprises a plurality of global servers for supplying contents to a plurality of local servers, each global server having a large capacity contents library, and the local servers for managing the contents provided from the global servers based on global servers and service types using contents tables, and providing a contents service in response to a contents streaming service demand from a last terminal using a local contents cache.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: January 18, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang-Soo Kim, Seung-Jo Bae, Jin-Mee Kim, Yu-Hyeon Bak, Sang-Min Woo, Seung-Hyub Jeon, Won-Jae Lee, Hag-Young Kim
  • Patent number: 7653829
    Abstract: A method of data placement and control in a block-divided distributed disk array is provided. At first, data to store is divided into logical blocks, and each of the divided logical blocks is further divided into a plurality of data blocks. Then, a parity block is created through performing an XOR operation on the data blocks of each logical block in a unit of a strip, and the parity block is arranged at the first block of a strip unit. Then, parity blocks are arranged at a next block of a previous logical block's the last data block through a left/right shifting for uniformly arranging the parity blocks through out all disks in order to fill an empty block between the logical blocks.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: January 26, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kap Dong Kim, Song Woo Sok, Hag Young Kim, Myung Joon Kim
  • Patent number: 7584292
    Abstract: A hierarchical system configuration method and an integrated scheduling method for offering a multimedia streaming service on a two-level double cluster system are provided.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: September 1, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Jo Bae, Jin Mee Kim, Seung Hyub Jeon, Hag Young Kim, Myung Joon Kim
  • Publication number: 20090158083
    Abstract: Provided are a cluster system, which makes general nodes appear as if they provide seamless services without failure when seen from the outside, and a method for operating the cluster system. The cluster system for operating individual nodes in a distributed management manner includes a board server having a task board registered with a task list, an agent server for managing the task board, and a plurality of general server nodes for performing a corresponding task on the basis of the task list, among which a failed general server node is replaced with another normal general server node.
    Type: Application
    Filed: August 6, 2008
    Publication date: June 18, 2009
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin-Hwan Jeong, Ok-Gee Min, Chang-Soo Kim, Yoo-Hyun Park, Choon-Seo Park, Song-Woo Sok, Yong-Ju Lee, Won-Jae Lee, Hag-Young Kim
  • Publication number: 20090157894
    Abstract: Provided are a system and a method for distributing multimedia streaming service request based on wide area network which can efficiently support multimedia streaming service in wide area network. The system for distributing multimedia streaming service request based on wide area network includes a user terminal, a wide area server, and a local server. The user terminal requests multimedia streaming service. The wide area server for selecting a local server which is disposed nearest to the user terminal and has node availability and service availability, and providing contents requested by the user terminal to the selected local server. The local server provides the multimedia streaming service to the user terminal using the contents provided from the wide area server.
    Type: Application
    Filed: November 4, 2008
    Publication date: June 18, 2009
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Chang Soo KIM, Won Jae Lee, Yoo Hyun Park, Hag Young Kim
  • Publication number: 20090150717
    Abstract: Provided is an availability prediction method for a high availability. The method includes calculating a basic survival probability that the other node survives until a failure on one node of two nodes constituting a cluster is fixed, and determining an optimal number of nodes meeting a preset reference availability probability by calculating an availability probability for a predetermined range of the number of nodes on the basis of the basic survival probability. The method determines the number of nodes in the high availability cluster so as to match a reference availability probability, and is able to accomplish an optimal configuration of a cluster by calculating the availability probabilities for combinations between active node and passive nodes and between head nodes and switches.
    Type: Application
    Filed: August 1, 2008
    Publication date: June 11, 2009
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong-Ju Lee, Ok-Gee Min, Chang-Soo Kim, Yoo-Hyun Park, Choon-Seo Park, Song-Woo Sok, Jin-Hwan Jeong, Won-Jae Lee, Hag-Young Kim
  • Publication number: 20090150718
    Abstract: Provided are a large-scale cluster monitoring system and a method for automatically building/restoring the same, which can automatically build a large-scale monitoring system and can automatically build a monitoring environment when a failure occurs in nodes. The large-scale cluster monitoring system includes a CM server, a BD server, GM nodes, NA nodes, and a DB agent. The CM server manages nodes in a large-scale cluster system. The DB server stores monitoring information that is state information of nodes in groups. The GM nodes respectively collect the monitoring information that is the state information of the nodes in the corresponding groups to store the collected monitoring information in the DB server. The NA nodes access the CM server to obtain GM node information and respectively collect the state information of the nodes in the corresponding groups to transfer the collected state information to the corresponding GM nodes.
    Type: Application
    Filed: August 5, 2008
    Publication date: June 11, 2009
    Inventors: Choon-Seo Park, Song-Woo Sok, Chang-Soo Kim, Yoo-Hyun Park, Yong-Ju Lee, Jin-Hwan Jeong, Hag-Young Kim
  • Patent number: 7478200
    Abstract: A fractional caching method and an adaptive contents transmitting method using the same are provided. The fractional caching method includes the steps of setting up a divided location for dividing a certain object into two parts, receiving an evict request for acquiring a space in the inside of the cache, when the evict request is transmitted, dividing a plurality of objects stored in the cache into a prefix-Object located in the head of the object and a suffix-Object located in the tail of the object from the divided location, and removing only the suffix-Object of each object, wherein the divided location is set up at a size rate that a size of the prefix-Object is in inverse proportion to the number of the destination types.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: January 13, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Ok Gee Min, Jung Keun Kim, Jin Hwan Jeong, Choon Seo Park, Hag Young Kim, Myung Joon Kim
  • Publication number: 20080131078
    Abstract: Provided are a method for generating an instantaneous decoding refresh (IDR) unit for trick play, and a trick play system and method using the same. The trick play system includes: a speed information input unit configured to receive a speed value; a transmission condition determining unit configured to determine instantaneous decoding refresh (IDR) transmission conditions based on the speed value inputted through the speed information input unit; a double-speed IDR-unit generating unit configured to generate a double-speed IDR-unit by adjusting the number and data size of video frames to be transmitted in accordance with the transmission conditions determined by the transmission condition determining unit; and a transmitting unit configured to transmit the generated double-speed IDR-unit to an external user terminal.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 5, 2008
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin-Hwan JEONG, Jung-Koun KIM, Yong-Ju LEE, Choon-Soo PARK, Ok-Goo MIN, Hag-Young KIM, Myung-Joon Kim
  • Publication number: 20070180299
    Abstract: A method of data placement and control in a block-divided distributed disk array is provided. At first, data to store is divided into logical blocks, and each of the divided logical blocks is further divided into a plurality of data blocks. Then, a parity block is created through performing an XOR operation on the data blocks of each logical block in a unit of a strip, and the parity block is arranged at the first block of a strip unit. Then, parity blocks are arranged at a next block of a previous logical block's the last data block through a left/right shifting for uniformly arranging the parity blocks through out all disks in order to fill an empty block between the logical blocks.
    Type: Application
    Filed: November 28, 2006
    Publication date: August 2, 2007
    Inventors: Kap Dong Kim, Song Woo Sok, Hag Young Kim, Myung Joon Kim
  • Publication number: 20070127481
    Abstract: A method and apparatus for providing a peer-to-peer (P2P) based streaming service are provided. The method provides a streaming service in a peer-to-peer (P2P) network comprising a plurality of peers. That is, a receiving peer requests a plurality of transmitting peers having contents for a streaming service among peers in the P2P network to transmit the contents. Then, the receiving peer receives identical portions of the same content from the plurality of transmitting peers at the same time. After receiving, the receiving peer provides a streaming service for the received content from a first transmitting peer among the plurality of transmitting peers to a user.
    Type: Application
    Filed: September 19, 2006
    Publication date: June 7, 2007
    Inventors: Yoo Hyun Park, Chang Soo Kim, Sang Min Woo, Won Jae Lee, Ok Min, Hag Young Kim
  • Publication number: 20070073975
    Abstract: A fractional caching method and an adaptive contents transmitting method using the same are provided. The fractional caching method includes the steps of setting up a divided location for dividing a certain object into two parts, receiving an evict request for acquiring a space in the inside of the cache, when the evict request is transmitted, dividing a plurality of objects stored in the cache into a prefix-Object located in the head of the object and a suffix-Object located in the tail of the object from the divided location, and removing only the suffix-Object of each object, wherein the divided location is set up at a size rate that a size of the prefix-Object is in inverse proportion to the number of the destination types.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Inventors: Yong Ju Lee, Ok Gee Min, Jung Keun Kim, Jin Hwan Jeong, Choon Seo Park, Hag Young Kim, Myung Joon Kim
  • Patent number: 7197598
    Abstract: A file level striping method adds an option for indicating whether or not to support file level striping to a file creation interface in a file system, extends an inode structure to include a last disk ID field, initializes the last disk ID when the file is created in the file system, allocates a physical block based on the last disk ID when the physical block allocation is requested at the time of file I/O request in the file system, and modifies the last disk ID value to reflect the physical block allocation made by a volume manager. An apparatus using the file level striping method includes a number of disks for storing information actually, the volume manager for logically grouping a number of disks and a file system for creating files on said logical volume and performing I/O operations.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: March 27, 2007
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chang-Soo Kim, Yuhyeon Bak, Young Ho Kim, Dong Jae Kang, Hag Young Kim, Myung-Joon Kim
  • Publication number: 20060155779
    Abstract: Provided is a contents distribution management system and method for supporting a plurality of global servers that provide the contents and managing the contents by applying different policies based on the global server and service type of the contents. The inventive system comprises a plurality of global servers for supplying contents to a plurality of local servers, each global server having a large capacity contents library, and the local servers for managing the contents provided from the global servers based on global servers and service types using contents tables, and providing a contents service in response to a contents streaming service demand from a last terminal using a local contents cache.
    Type: Application
    Filed: December 20, 2005
    Publication date: July 13, 2006
    Inventors: Chang-Soo Kim, Seung-Jo Bae, Jin-Mee Kim, Yu-Hyeon Bak, Sang-Min Woo, Seung-Hyub Jeon, Won-Jae Lee, Hag-Young Kim
  • Publication number: 20040107314
    Abstract: A file level striping method adds an option for indicating whether or not to support file level striping to a file creation interface in a file system, extends an inode structure to include a last disk ID field, initializes the last disk ID when the file is created in the file system, allocates a physical block based on the last disk ID when the physical block allocation is requested at the time of file I/O request in the file system, and modifies the last disk ID value to reflect the physical block allocation made by a volume manager. An apparatus using the file level striping method includes a number of disks for storing information actually, the volume manager for logically grouping a number of disks and a file system for creating files on said logical volume and performing I/O operations.
    Type: Application
    Filed: July 18, 2003
    Publication date: June 3, 2004
    Inventors: Chang-Soo Kim, Yuhyeon Bak, Young Ho Kim, Dong Jae Kang, Hag Young Kim, Myung-Joon Kim