Patents by Inventor Young-sik Chung
Young-sik Chung 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: 11953366Abstract: A fluid level measurement system using a buoyant body includes a guide part installed in a direction perpendicular to the bottom surface of a fluid storage tank, and provided with a space in which a fluid can move therein; a buoyant body inserted into the guide part, and configured to float along the surface of the fluid inside the guide part; and a measurement part coupled to the top end of the guide part, and configured to measure the level of the surface of the fluid inside the fluid storage tank by transmitting a signal toward the buoyant body in the inner space of the guide part and then receiving a signal reflected from the buoyant body.Type: GrantFiled: July 7, 2022Date of Patent: April 9, 2024Assignee: HANRA IMS CO., LTDInventors: Suk Joon Ji, Young Gu Kim, Jong Min Chung, Chae Ho Lee, I-Hwan Cheon, Kwang Ik Chun, Dong Sik Jang
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Patent number: 9992300Abstract: Disclosed is an adaptive cache transformation architecture for a cache deployed forward to minimize duplicated transmission, by automatically storing content in a subscriber network area. The system for adaptively deploying a cache positioned at a subscriber network includes a cache service group configured to store all or a part of pieces of content serviced from one or more content providing apparatuses to one or more terminals and including a plurality of caches deployed at a subscriber network between the content providing apparatus and the terminal in a distributed manner, and a resource manager configured to transform a deployment structure of the plurality of caches forming the cache service group, based on at least one of an increase rate in the number of pieces of contents requested by the one or more terminals and a reutilization rate for each content.Type: GrantFiled: February 25, 2015Date of Patent: June 5, 2018Inventors: Tai Yeon Ku, Jong Youl Park, Young sik Chung
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Publication number: 20150341458Abstract: Disclosed is an adaptive cache transformation architecture for a cache deployed forward to minimize duplicated transmission, by automatically storing content in a subscriber network area. The system for adaptively deploying a cache positioned at a subscriber network includes a cache service group configured to store all or a part of pieces of content serviced from one or more content providing apparatuses to one or more terminals and including a plurality of caches deployed at a subscriber network between the content providing apparatus and the terminal in a distributed manner, and a resource manager configured to transform a deployment structure of the plurality of caches forming the cache service group, based on at least one of an increase rate in the number of pieces of contents requested by the one or more terminals and a reutilization rate for each content.Type: ApplicationFiled: February 25, 2015Publication date: November 26, 2015Inventors: Tai Yeon KU, Jong Youl PARK, Young sik CHUNG
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Patent number: 8359383Abstract: The present invention relates to a server for supporting one service in multiple domains, including: a service management unit that receives service and service execution engine from a service providing server and registers them in a service DB; a profiling server unit that requests device profile to user terminals according to a request from the service management unit and parses device profile received from the user terminals and stores it in a device DB; a service ensembler that generates a list of services usable in the user terminal based on the device profile stored in the device DB and provides the list of services to the user terminals and extracts a service execution engines suitable for the user terminals from the service DB according to user selection and transmits them to the user terminals.Type: GrantFiled: August 27, 2010Date of Patent: January 22, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jung-Sik Sung, Young-Sik Chung, Eui-Hyun Paik
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Publication number: 20120054065Abstract: Provided are a system and a method for service recommendation. A service recommendation system according to an exemplary embodiment of the present invention includes: a service recommendation unit that, when a user connects from a user terminal, searches a user recommendation service list and a terminal adaptive execution engine list, both of which are generated in advance regarding the user terminal, and provides the user with a recommendation service list, where each service is listed in the searched user recommendation service list and uses an excution engine listed in the terminal adaptive execution engine list; and a user recommendation list generation unit that extracts preferred services and recently used services using service history and statistics information stored regarding the user, and generates the user recommendation service list regarding the user by listing the extracted services and services similar thereto.Type: ApplicationFiled: August 22, 2011Publication date: March 1, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Jung Sik SUNG, Jong Moo SOHN, Jae Doo HUH, Young Sik CHUNG, Eui Hyun PAIK
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Publication number: 20110055324Abstract: The present invention relates to a server for supporting one service in multiple domains, including: a service management unit that receives service and service execution engine from a service providing server and registers them in a service DB; a profiling server unit that requests device profile to user terminals according to a request from the service management unit and parses device profile received from the user terminals and stores it in a device DB; a service ensembler that generates a list of services usable in the user terminal based on the device profile stored in the device DB and provides the list of services to the user terminals and extracts a service execution engines suitable for the user terminals from the service DB according to user selection and transmits them to the user terminals.Type: ApplicationFiled: August 27, 2010Publication date: March 3, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: JUNG-SIK SUNG, YOUNG-SIK CHUNG, EUI-HYUN PAIK
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Patent number: 7873041Abstract: A method and apparatus for searching a forwarding table are provided.Type: GrantFiled: November 29, 2007Date of Patent: January 18, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Won-Kyoung Lee, Jae-Woo Park, Young-Sik Chung, Yoo-Kyoung Lee
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Patent number: 7843973Abstract: Provided is a method for forming a customized-quality integrated transport network based on synch and asynch frames, and a transport network forming apparatus thereof. The method of the present invention includes: a) synchronizing a transmission bit rate in a network; b) when the transmission bit rate is synchronized in the network and a connection request is received, establishing a connection by determining a route and a start cycle time of the link based on a quality of the connection request and transporting it to nodes of the link; and c) transmitting data to be transported to a link of an adjacent node within the virtual cycle time when the data are synch frames; or when the data are asynch frames and the data are not transmitted within a virtual cycle time of a link to be switched, keeping the data waiting for a next cycle time.Type: GrantFiled: November 25, 2005Date of Patent: November 30, 2010Assignee: Electronics and Telecommunications Research InstituteInventors: Seong-Soon Joo, Young-Sik Chung, Tae-Joon Park, Jeong-Dong Ryoo, Jong-Tae Song, Bong-Wan Kim, Jee-Yon Choi, Jin-Young Lee, Byung-Sun Lee, Kyung-Pyo Jun
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Patent number: 7822343Abstract: The present research relates to s a transmission frame structure supporting a data service and a circuit service of diverse bands in a Synchronous Optical Network (SONET)/Synchronous Digital Hierarchy (SDH) network. This research provides a transmission frame structure including a sync period, an async period, and a control period and provides a multiplexing apparatus that can add or extract a fixed length frame in the synch period of the transmission frame and add or extract a variable length frame in the asynch period, and a method for transmitting the transmission frame. The transmission frame structure includes a sync period for transmitting a fixed length frame; an async period for transmitting a variable length frame; and a control period for transmitting a control frame storing information for discriminating between the sync period and the async period. The technology of this research can be applied to a synchronous optical network system.Type: GrantFiled: December 6, 2005Date of Patent: October 26, 2010Assignee: Electronics and Telecommunications Research InstituteInventors: Jong-tae Song, Tae-joon Park, Young-sik Chung, Seong-soon Joo
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Publication number: 20090254676Abstract: A method for transferring data frame end-to-end in a local area network is provided. In the method, a virtual synch frame shaper is loaded on a frame transmission layer structure provided in end stations in transmitting and receiving sides, which transmits data frame passing through a plurality of Ethernet switches in the LAN. Then, slot counters, which are counted through the virtual synch frame shaper, are exchanged between the end stations, and the slot counters are synchronized. Afterward, the transmit time slot is allocated based on the synchronized slot counters for transmitting data frames between the end stations. Finally, data frames are transmitted based on the synchronized slot counters and the allocated transmit time slot.Type: ApplicationFiled: December 6, 2006Publication date: October 8, 2009Applicant: Electronics and Telecommunications Research InstituteInventors: Seong-Soon Joo, Young-Sik Chung, Tae-Joon Park, Jin-Young Lee, Yoo-Kyoung Lee, Hae-Won Jung, Young-Cheol Bang, Moon-Sung Kim, Kang-Yong Lee, Kyung-Mook Lim
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Method and system for user-friendly forwarding entry management based on inter-process communication
Publication number: 20090106773Abstract: A method and system for user-friendly forwarding entry management based on inter-process communication (IPC) is provided. The system includes a function input unit inputting a command for forwarding entry management; and an automated process unit verifying parameters included in the function to create a user table, extracting information for creating a forwarding entry management table from the user table, and outputting a forwarding entry management message including the extracted information. The method includes inputting a command for forwarding entry management; verifying parameters included in the command; creating a user table using the parameters if the verification is successful; extracting information for creating a forwarding entry management table from the user table; and outputting a forwarding entry management message including the extracted information.Type: ApplicationFiled: June 11, 2008Publication date: April 23, 2009Inventors: Won-kyoung Lee, Jae-woo Park, Young-sik Chung, Bheom-soon Joo -
Publication number: 20080107136Abstract: Provided is a method for forming a customized-quality integrated transport network based on synch and asynch frames, and a transport network forming apparatus thereof. The method of the present invention includes: a) synchronizing a transmission bit rate in a network; b) when the transmission bit rate is synchronized in the network and a connection request is received, establishing a connection by determining a route and a start cycle time of the link based on a quality of the connection request and transporting it to nodes of the link; and c) transmitting data to be transported to a link of an adjacent node within the virtual cycle time when the data are synch frames; or when the data are asynch frames and the data are not transmitted within a virtual cycle time of a link to be switched, keeping the data waiting for a next cycle time.Type: ApplicationFiled: November 25, 2005Publication date: May 8, 2008Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Soon Joo, Young-Sik Chung, Tae-Joon Park, Jeong-Dong Ryoo, Jong-Tae Song, Bong-Wan Kim, Jee-Yon Choi, Jin-Young Lee, Byung-Sun Lee, Kyung-Pyo Jun
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Publication number: 20080089683Abstract: The present research relates to s a transmission frame structure supporting a data service and a circuit service of diverse bands in a Synchronous Optical Network (SONET)/Synchronous Digital Hierarchy (SDH) network. This research provides a transmission frame structure including a sync period, an async period, and a control period and provides a multiplexing apparatus that can add or extract a fixed length frame in the synch period of the transmission frame and add or extract a variable length frame in the async period, and a method for transmitting the transmission frame. The transmission frame structure includes a sync period for transmitting a fixed length frame; an async period for transmitting a variable length frame; and a control period for transmitting a control frame storing information for discriminating between the sync period and the async period. The technology of this research can be applied to a synchronous optical network system.Type: ApplicationFiled: December 6, 2005Publication date: April 17, 2008Applicant: Electronic and Telecommunications Research InstituteInventors: Jong-tae Song, Tae-joon Park, Young-sik Chung, Seong-soon Joo