Patents by Inventor Sook Jin Lee

Sook Jin Lee 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: 20240172554
    Abstract: The present invention relates to an organic light emitting diode and an organic light emitting device including the organic light emitting diode. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound, a second compound and a third compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, the second compound is represented by Formula 3, and the third compound is represented by Formula 5, and wherein in the first blue emitting material layer, a summation of a weight % of the first compound, a weight % of the second compound and a weight % of the third compound is 100%, and the weight % of each of the first and second compounds is greater than the weight % of the third compound.
    Type: Application
    Filed: August 24, 2023
    Publication date: May 23, 2024
    Applicants: LG DISPLAY CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Suk-Young BAE, Dong-Ryun LEE, Jong-Uk KIM, Han-Jin AHN, Jun-Yun KIM, Jun-Yeob LEE, Sook-Hee JEONG, Jin-Ho PARK
  • Publication number: 20230373544
    Abstract: Provided is a method of operating a network device for train control in a wireless communication system, the method including: generating control information for train control; providing a first control command to a first base station through a first interface based on the control information; and providing a second control command to a second base station through a second interface based on the control information, wherein the first control command or the second control command is provided to the first base station or the second base station through the first interface or the second interface via a first core network for train control, and one of the first base station and the second base station is connected to a second core network.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 23, 2023
    Inventors: Byungsik YOON, Sang Chul OH, Sook Jin LEE, Min Suk CHOI
  • Patent number: 10349372
    Abstract: A method of positioning a terminal includes: receiving a first radio signal generated through beamforming from a base station; obtaining a cell ID and a beam ID from the first radio signal; obtaining a received signal intensity of the first radio signal; and estimating a first position of the terminal by comparing a fingerprint in which a cell ID, a beam ID, and a received signal intensity are mapped to each point on a map with the cell ID, the beam ID, and the received signal intensity obtained from the first radio signal.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 9, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sook Jin Lee, Wanhee Kim, Yong Seouk Choi
  • Publication number: 20180027519
    Abstract: A method of positioning a terminal includes: receiving a first radio signal generated through beamforming from a base station; obtaining a cell ID and a beam ID from the first radio signal; obtaining a received signal intensity of the first radio signal; and estimating a first position of the terminal by comparing a fingerprint in which a cell ID, a beam ID, and a received signal intensity are mapped to each point on a map with the cell ID, the beam ID, and the received signal intensity obtained from the first radio signal.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 25, 2018
    Inventors: Sook Jin LEE, Wanhee KIM, Yong Seouk CHOI
  • Patent number: 9510279
    Abstract: An intelligent multiple access communication (MAC) control apparatus and method are disclosed. The intelligent MAC control apparatus includes a connection control unit, a resource management unit, a session control unit, a flow control unit, and a determination unit. The connection control unit connects at least one Radio Access Technology (RAT) and a wireless network. The resource management unit collects RAT information including information about available resources and radio state of the RAT. The session control unit checks the QoS of at least one connection target service. The flow control unit determines the priority of the connection target service, and selects a preferential connection target service. The determination unit determines a connection RAT for performing the preferential connection target service based on the QoS and the RAT information.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: November 29, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong-Seouk Choi, Sook-Jin Lee, Youn-Ok Park, Dong-Seung Kwon
  • Patent number: 9451509
    Abstract: Disclosed herein are an apparatus for providing handover information within a femtocell network, and a terminal using the same. The apparatus includes an expected stay time calculation unit, a handover target selection unit, and a handover information provision unit. The expected stay time calculation unit, for a terminal located within serving coverage range of a serving base station, calculates expected stay time, that is, a time for which the terminal will stay within a femtocell coverage range of each of the femtocell base stations. The handover target selection unit selects a handover target from among the femtocell base stations based on the calculated expected stay time. The handover information provision unit provides the terminal with handover information including the selected handover target.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: September 20, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Nak-Woon Sung, Sook-Jin Lee
  • Patent number: 9301236
    Abstract: Provided is a network access management method of a terminal, the method including determining whether a terminal located adjacent to a railway dedicated wireless communication network is a common terminal or a railway dedicated terminal, based on a unique identifier (ID) of the terminal, and handing over the terminal to a different communication network allowing an access based on a result of the determining.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: March 29, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Woo Jeong, Sook Jin Lee, Yong Seouk Choi
  • Patent number: 9301148
    Abstract: The method for redundancy of a wireless communication network according to the embodiment of the present invention includes: partitioning the same frequency band of a first base station transceiver subsystem and a second base station transceiver subsystem, which form redundant cell coverage, into a plurality of resource blocks; partitioning each of the partitioned resource blocks into a first frequency partition (FP) and a second frequency partition which are configured to have the same structure as each other; and transmitting and receiving, by the first base station transceiver subsystem, data using a first resource block allocated to the first frequency partition and by the second base station transceiver subsystem, data using a second resource block allocated to the second frequency partition.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: March 29, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Nam-Suk Lee, Sook-Jin Lee
  • Patent number: 9204429
    Abstract: A method for adjusting a hybrid automatic repeat request (HARQ) timing is provided. A base station adjusts a HARQ timing of a mobile station according to a system environment, and transmits radio resource allocation information including the adjusted HARQ timing information to the mobile station. The mobile station adjusts HARQ timing according to HARQ timing information, and transmits a HARQ signal according to the adjusted HARQ timing.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 1, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jisoo Park, Sook Jin Lee, Youn Ok Park
  • Publication number: 20150336594
    Abstract: A system that controls a train radio communication apparatus is provided. The control system periodically detects performance of each of a first train radio communication apparatus and a second train radio communication apparatus. The control system selects either one of the first train radio communication apparatus and the second train radio communication apparatus based on the detected performance. The control system transfers a signal that is received from the selected train radio communication apparatus.
    Type: Application
    Filed: March 12, 2015
    Publication date: November 26, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Byungsik YOON, Sook Jin LEE, Yong Seouk CHOI
  • Patent number: 9131505
    Abstract: A method for providing uplink service from a base station to a terminal includes: transmitting information on a TCP packet and a dedicated code to a terminal; receiving a code number from the terminal using the dedicated code; searching a requesting bandwidth for the code number and allocating resources to the terminal; and receiving the ACK packet for the TCP packet through the allocated resources from the terminal.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: September 8, 2015
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Samsung Electronics Co. Ltd.
    Inventors: Juhee Kim, Eunkyung Kim, Sook Jin Lee, Kyung Soo Kim
  • Publication number: 20150038147
    Abstract: Provided is a network access management method of a terminal, the method including determining whether a terminal located adjacent to a railway dedicated wireless communication network is a common terminal or a railway dedicated terminal, based on a unique identifier (ID) of the terminal, and handing over the terminal to a different communication network allowing an access based on a result of the determining.
    Type: Application
    Filed: May 21, 2014
    Publication date: February 5, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Min Woo JEONG, Sook Jin LEE, Yong Seouk CHOI
  • Patent number: 8918131
    Abstract: An apparatus for transmitting data in a communication system supporting multi-carriers determines the priority of the multi-carriers and transmits information on the priority to a terminal. Thereafter, the transmitting apparatus allocates data to the multi-carriers in accordance with the priority and transmits the allocated data to a data receiving apparatus, and the data receiving apparatus receives data to be transmitted from the data transmitting apparatus in accordance with information on the priority.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: December 23, 2014
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Sook Jin Lee, Kyung Soo Kim
  • Publication number: 20140355521
    Abstract: An intelligent multiple access communication (MAC) control apparatus and method are disclosed. The intelligent MAC control apparatus includes a connection control unit, a resource management unit, a session control unit, a flow control unit, and a determination unit. The connection control unit connects at least one Radio Access Technology (RAT) and a wireless network. The resource management unit collects RAT information including information about available resources and radio state of the RAT. The session control unit checks the QoS of at least one connection target service. The flow control unit determines the priority of the connection target service, and selects a preferential connection target service. The determination unit determines a connection RAT for performing the preferential connection target service based on the QoS and the RAT information.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 4, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong-Seouk CHOI, Sook-Jin LEE, Youn-Ok PARK, Dong-Seung KWON
  • Patent number: 8886251
    Abstract: When a handover apparatus of a user terminal enters a small scale cell within a macrocell area in a state that it is connected to a macrocell, the handover apparatus acquires a delay parameter of the small scale cell and delays handover for a time period of the delay parameter of the small scale cell and determines handover to the small scale cell. Thereby, handover to the small scale cell for a temporal user of the small scale cell can be reduced.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: November 11, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Nak Woon Sung, Sook Jin Lee, Seungjae Shin, Hyunsoo Yoon
  • Publication number: 20140321374
    Abstract: A radio resource allocation apparatus and method using an interference indicator in a femto-cell network are disclosed. The radio resource allocation apparatus using an interference indicator in a femto-cell network includes: an interference indicator obtaining unit obtaining any one or more of interference indicators including load information of a base station in the femto-cell network, a change amount of reference signal received power (RSRP) to reference signal received quality (RSRQ), and a channel quality indicator (CQI); a priority determining unit providing different weights to each of the interference indicators and determining an allocation priority of radio resources using the interference indicators to which the weights are provided; and a radio resource allocating unit allocating the radio resources to the base station in any one of a dedicated carrier mode, a partially shared carrier mode, and a shared carrier mode using the allocation priority.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 30, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jun-Sik KIM, Sook-Jin LEE
  • Publication number: 20140323139
    Abstract: The method for redundancy of a wireless communication network according to the embodiment of the present invention includes: partitioning the same frequency band of a first base station transceiver subsystem and a second base station transceiver subsystem, which form redundant cell coverage, into a plurality of resource blocks; partitioning each of the partitioned resource blocks into a first frequency partition (FP) and a second frequency partition which are configured to have the same structure as each other; and transmitting and receiving, by the first base station transceiver subsystem, data using a first resource block allocated to the first frequency partition and by the second base station transceiver subsystem, data using a second resource block allocated to the second frequency partition.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 30, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Nam-Suk LEE, Sook-Jin LEE
  • Publication number: 20140308952
    Abstract: Disclosed herein are an apparatus for providing handover information within a femtocell network, and a terminal using the same. The apparatus includes an expected stay time calculation unit, a handover target selection unit, and a handover information provision unit. The expected stay time calculation unit, for a terminal located within serving coverage range of a serving base station, calculates expected stay time, that is, a time for which the terminal will stay within a femtocell coverage range of each of the femtocell base stations. The handover target selection unit selects a handover target from among the femtocell base stations based on the calculated expected stay time. The handover information provision unit provides the terminal with handover information including the selected handover target.
    Type: Application
    Filed: August 23, 2013
    Publication date: October 16, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Nak-Woon SUNG, Sook-Jin Lee
  • Publication number: 20140308941
    Abstract: An apparatus and method are disclosed for dynamically controlling access to a Femto Cell Access Point (FAP). The apparatus includes a policy configuration unit, a mode setting unit, a use information acquisition unit, and an available information extraction unit. The policy configuration unit configures a policy for switching between a first mode in which a Mobile Station (MS) of a non-subscriber of the FAP is prevented from being connected to the FAP and a second mode in which the MS of the non-subscriber of the FAP is permitted to be connected to the FAP. The mode setting unit sets an access mode of the FAP to the first or second mode according to the policy. The use information acquisition unit obtains use information. The available information extraction unit extracts available information.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 16, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Nak-Woon SUNG, Sook-Jin LEE
  • Patent number: 8792415
    Abstract: The present invention relates to a scheduling apparatus and a method thereof in an HPi system. A scheduling algorithm is applied appropriate to a characteristic of each multimedia service (e.g., real-time service, non real-time service, best-effort service, etc.) and a transmission order of the IP packets transmitted from a network is determined such that a transmit wait queue is generated. Radio resource allocation is performed in accordance with the order of the data items queued in the transmit wait queue, the size of transmittable data is determined such that a PDU is generated. In addition, frame data formed of bursts of PDUs is generated and transmitted to a physical layer. Therefore, a scheduling algorithm can be applied appropriate to characteristics of each multimedia service. In addition, packet scheduling is performed in two steps in order to schedule traffic corresponding to radio frames such that packets can be efficiently processed.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: July 29, 2014
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute, KT Corporation, SK Telecom Co., Ltd., KTFreetel Co., Ltd., Hanaro Telecom, Inc.
    Inventors: Ju-Hee Kim, Sook-Jin Lee, Kyung-Soo Kim