Patents by Inventor Tae-Whan Yoo

Tae-Whan Yoo 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: 20190098104
    Abstract: A network infrastructure system implements data sharing and processing by using a network infrastructure to which an application terminal or application server constituting an application domain is connected in a shared manner, includes a plurality of network infrastructure nodes storing, processing, sharing data, wherein each of the plurality of network infrastructure nodes includes a data processing module including a data transfer function, a data distribution function, a data processing function, and a data sharing function which are provided to at least one of the application terminal and the application server.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 28, 2019
    Inventors: Sun Me KIM, Nam Seok KO, Sang Ki KIM, Sung Hyuk BYUN, Dong Il SEO, Jea Hoon YU, Tae Whan YOO, Seung Hyun YOON, Sang Ho LEE
  • Patent number: 10194222
    Abstract: An optical switching control method and apparatus. The method includes generating an optical switching path corresponding to a destination node of service traffic flowing from an external service network, generating an optical frame corresponding to the generated optical switching path, transmitting, to a control server, a request message for requesting an allocation of a time slot to transmit the generated optical frame, generating an optical signal having a predetermined wavelength to transmit the optical frame in response to an admission message being received as a result of admission with respect to the request message, and transferring the optical frame to the destination node based on the optical switching path using the generated optical signal.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: January 29, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Daeub Kim, Jongtae Song, Sun Me Kim, Chansung Park, Tae Whan Yoo, Ji Wook Youn, Kyeong-Eun Han
  • Patent number: 10136456
    Abstract: Disclosed herein are a method and an apparatus for configuring a radio resource. In a wireless communication system, a radio resource is split into a plurality of radio resource slices corresponding to different service types and a radio source slice corresponding to a service type among a plurality of radio resource slices that a device requests is determined.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: November 20, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Pyeong Jung Song, Jongtae Song, Tae Whan Yoo
  • Patent number: 10129146
    Abstract: A method and apparatus for providing a mobility in an Ethernet network. An Ethernet switch receives an Ethernet frame through a port of the Ethernet switch, and transmits the Ethernet frame to an upper Ethernet switch through a root port of the Ethernet switch based on whether a forwarding information for a destination address of the Ethernet frame exists in a forwarding table.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: November 13, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Tae Whan Yoo, Jong Tae Song
  • Publication number: 20180109857
    Abstract: An optical switching control method and apparatus. The method includes generating an optical switching path corresponding to a destination node of service traffic flowing from an external service network, generating an optical frame corresponding to the generated optical switching path, transmitting, to a control server, a request message for requesting an allocation of a time slot to transmit the generated optical frame, generating an optical signal having a predetermined wavelength to transmit the optical frame in response to an admission message being received as a result of admission with respect to the request message, and transferring the optical frame to the destination node based on the optical switching path using the generated optical signal.
    Type: Application
    Filed: June 15, 2017
    Publication date: April 19, 2018
    Inventors: Daeub KIM, Jongtae SONG, Sun Me KIM, Chansung PARK, Tae Whan YOO, Ji Wook YOUN, Kyeong-Eun HAN
  • Publication number: 20180014222
    Abstract: Communication method and apparatus based on QoS in network slice-based mobile communication network. The method includes determining whether first sum of bitrate of SDF requested from PDU and a using NSB of network slice corresponding to requested SDF exceeds reference NSB allocated to network slice, determining whether second sum of bitrate of requested SDF and a first using SB of APN corresponding to requested SDF exceeds first reference SB allocated to APN, unless the first sum exceeds the reference NSB, determining whether third sum of bitrate of requested SDF and a second using SB of PDU flow corresponding to requested SDF exceeds second reference SB allocated to PDU flow, unless the second sum exceeds the first reference SB, and processing the requested SDF to guarantee that quality of requested SDF is greater than or equal to a predetermined level, unless the third sum exceeds the second reference SB.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 11, 2018
    Inventors: Ho Young SONG, Jongtae SONG, Tae Whan YOO
  • Publication number: 20170289791
    Abstract: A communication method and apparatus using a network slice. A method of performing communication on a control plane of a network system including an access network and a core network may receive an attach request from a user equipment, may perform a mutual authentication with the user equipment in response to the attach request, may retrieve a subscription profile for the user equipment in response to the attach request, when the mutual authentication is completed, and may determine a network slice for the user equipment based on the subscription profile.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 5, 2017
    Inventors: Tae Whan YOO, Jongtae SONG, Pyeong Jung SONG, Ho Young SONG, Joon Kyung LEE
  • Publication number: 20170142008
    Abstract: A method and apparatus for providing a mobility in an Ethernet network. An Ethernet switch receives an Ethernet frame through a port of the Ethernet switch, and transmits the Ethernet frame to an upper Ethernet switch through a root port of the Ethernet switch based on whether a forwarding information for a destination address of the Ethernet frame exists in a forwarding table.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 18, 2017
    Inventors: Tae Whan YOO, Jong Tae SONG
  • Publication number: 20170135099
    Abstract: Disclosed herein are a method and an apparatus for configuring a radio resource. In a wireless communication system, a radio resource is split into a plurality of radio resource slices corresponding to different service types and a radio source slice corresponding to a service type among a plurality of radio resource slices that a device requests is determined.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 11, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT UTE
    Inventors: Pyeong Jung SONG, Jongtae SONG, Tae Whan YOO
  • Publication number: 20160112303
    Abstract: A packet or passive optical network system with packet-based protection switching capabilities is provided. The system performs comprehensive protection switching against failures in all segments of a passive optical network (PON), thereby implementing lossless protection switching against failures in any segment in a packet network and against failures in any segment of the PON that consists of optical line terminals (OLTs), optical cables, optical network units (ONUs) of a PON system.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 21, 2016
    Inventor: Tae Whan YOO
  • Publication number: 20140153928
    Abstract: In a wireless optical communication system in which communication is performed based on a free space and a plurality of the communication apparatuses are arranged in a ring form around a central office terminal (COT), the communication apparatus monitors optical signals received in a first direction or in a second direction opposite to the first direction, and selects a first path through which the optical signals in the first direction are received and a second path through which the optical signals in the second direction are received. The communication apparatus converts an optical signal having a predetermined unique wavelength from among the optical signals received through the selected path into a signal of a frequency domain having a plurality of subcarriers, and obtains packet data mapped to each of the subcarriers.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 5, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jea Hoon YU, Seung-Hyun CHO, Tae Il KIM, Jeong-Dong RYOO, Tae Whan YOO, Bheom Soon JOO, Jong Hyun LEE, Bong Tae KIM
  • Patent number: 8724992
    Abstract: A ring network system includes a plurality of node apparatuses that are sequentially connected through a transmission medium that is formed in a ring form. In the ring network system, the remaining node apparatuses, except for a first node apparatus of the plurality of node apparatuses pass an optical signal that is transmitted from the first node apparatus, and a second node apparatus corresponding to a destination of the optical signal among the remaining node apparatuses, extracts the optical signal while transferring the first optical signal to a next node apparatus of the second node apparatus.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: May 13, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Jae Lee, Hong Ju Kim, Bup Joong Kim, Jea Hoon Yu, Tae Whan Yoo
  • Patent number: 8638807
    Abstract: A method for managing an Ethernet ring network of a VLAN-based bridge is provided that includes: registering a major-ring VLAN ID (VID) in a ring port filtering database of a ring protection link owner node in accordance with a request for registering the major ring VID from an Ethernet Ring Protection controller mounted on the ring protection link owner node of a major ring; delivering, by the ring protection link owner node, a VID registration message to other nodes which belong to the major ring through a ring port; receiving the VID registration message through the ring port and registering the major ring VID in a ring port filtering database of each node itself, by each node belonging to the major ring; and delivering, by each node belonging to the major ring, the VID registration message to other nodes belonging to the major ring through the ring port.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: January 28, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dae Ub Kim, Sang Min Lee, Jeong Dong Ryoo, Jea Hoon Yu, Tae Whan Yoo
  • Publication number: 20140010071
    Abstract: There is provided a method for managing an Ethernet ring network of a VLAN-based bridge that includes: registering a major-ring VID (VLAN ID) in a ring port filtering database of a ring protection link owner node in accordance with a request for registering the major ring VID (VLAN ID) from an ERP (Ethernet Ring Protection) controller mounted on the ring protection link owner node of a major ring; delivering, by the ring protection link owner node, a VID registration message to other nodes which belong to the major ring through a ring port; receiving the VID registration message through the ring port and registering the major ring VID in a ring port filtering database of each node itself, by each node which belongs to the major ring; and delivering, by each node which belongs to the major ring, the VID registration message to other nodes which belong to the major ring through the ring port.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 9, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dae Ub KIM, Sang Min LEE, Jeong Dong RYOO, Jea Hoon YU, Tae Whan YOO
  • Patent number: 8606100
    Abstract: A wavelength division multiplexing (WDM)-time division multiplexing (TDM) passive optical network (PON) remote terminal (RT) is provided. The wavelength division multiplexing (WDM)-time division multiplexing (TDM) passive optical network (PON) remote terminal (RT), includes: a WDM-TDM converter configured to convert a WDM downstream optical signal that is received from a central office terminal (COT) into a TDM downstream optical signal or to convert a TDM upstream optical signal that is received from an optical network terminal (ONT) into a WDM upstream optical signal; an error detector configured to detect an error; and a controller configured to, in response to an error being detected, transmit the WDM upstream optical signal to the COT via a first standby link or transmit the TDM downstream optical signal to the ONT via a second standby link.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 10, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Ok Kim, Eun-Gu Lee, Eui-Suk Jung, Sang-Soo Lee, Tae-Whan Yoo
  • Publication number: 20120163802
    Abstract: A wavelength division multiplexing (WDM)-time division multiplexing (TDM) passive optical network (PON) remote terminal (RT) is provided. The wavelength division multiplexing (WDM)-time division multiplexing (TDM) passive optical network (PON) remote terminal (RT), includes: a WDM-TDM converter configured to convert a WDM downstream optical signal that is received from a central office terminal (COT) into a TDM downstream optical signal or to convert a TDM upstream optical signal that is received from an optical network terminal (ONT) into a WDM upstream optical signal; an error detector configured to detect an error; and a controller configured to, in response to an error being detected, transmit the WDM upstream optical signal to the COT via a first standby link or transmit the TDM downstream optical signal to the ONT via a second standby link.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kwang-Ok KIM, Eun-Gu LEE, Eui-Suk JUNG, Sang-Soo LEE, Tae-Whan YOO
  • Patent number: 8165125
    Abstract: The present invention relates to an apparatus and method of classifying packets that can support a quality of service (QoS) in a network system.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: April 24, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Hak Kim, Tae Whan Yoo, Song In Choi
  • Publication number: 20110270985
    Abstract: An open access node receives a dynamic IP address corresponding to a terminal that requests a connection from a specific server, and provides the dynamic IP address to the terminal. Next, the open access node receives a service that is requested by a user from the terminal that is connected using the dynamic IP address, and stores a MAC address of the terminal and a service in a database. When the terminal again requests a connection, the open access node identifies a service that is requested by a user of the terminal based on the MAC address of the terminal.
    Type: Application
    Filed: December 8, 2010
    Publication date: November 3, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Nam Kyoung UM, Tae Whan Yoo, Ho Young Song, Tae Yeon Kim, Dongguk Je, Seung Hyun Yoon, Jeong-Hun Shin
  • Patent number: 7936765
    Abstract: Provided are method and apparatus for dynamically allocating unlink bandwidth in Ethernet PON. In the method and apparatus, report value, which are received for each logical link identifications (LLID), is controlled to be less than a maximum gate value set for each LLID in sequence for all of LLIDs without a predetermined interval. A gate having a length corresponding to the restricted report value is generated. LLIDs are grouped into classes and processing is done class by class. For each class processing, if maximum processing time is reached or maximum total allocation is reached, the processing is switched to a lower class. Also each class processing, if any higher class has its maximum yield processing time or maximum yield allocated gate reached, the processing is switched to that higher class.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 3, 2011
    Assignee: Eletronics and Telecommunications Research Institute
    Inventors: Chan Kim, Tae Whan Yoo, Bong Tae Kim
  • Publication number: 20110052194
    Abstract: A ring network system includes a plurality of node apparatuses that are sequentially connected through a transmission medium that is formed in a ring form. In the ring network system, the remaining node apparatuses, except for a first node apparatus of the plurality of node apparatuses pass an optical signal that is transmitted from the first node apparatus, and a second node apparatus corresponding to a destination of the optical signal among the remaining node apparatuses, extracts the optical signal while transferring the first optical signal to a next node apparatus of the second node apparatus.
    Type: Application
    Filed: September 1, 2010
    Publication date: March 3, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyun Jae LEE, Hong Ju KIM, Bup Joong KIM, Jea Hoon YU, Tae Whan YOO