Patents by Inventor Eun Jong Lee

Eun Jong 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).

  • Patent number: 11127366
    Abstract: A source driver including a decoder configured to receive image data and an activation signal, determine a target voltage based on the image data, and select at least one gamma line for generating the target voltage from among a plurality of gamma lines, which are configured to transmit different gamma voltages, respectively, and a buffer circuit including a plurality of input terminals and configured to be connected to the selected at least one gamma line and generate an output voltage based on at least one gamma voltage obtained from the selected at least one gamma line may be provided. The decoder may be further configured to select a gamma line group including the selected at least one gamma line to be connected to the plurality of input terminals of the buffer circuit during a slew period of the buffer circuit in accordance with the activation signal.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha Jun Lee, Jun Ho Song, Jeong Ah Ahn, Eun Jong Jang
  • Patent number: 9908178
    Abstract: Disclosed herein is a method for preparing ultrathin silver nanowires. It may comprise (a) dissolving a silver salt (Ag salt) and a capping agent in a reducing solvent to give a mixture solution; (b) adding a halide compound to the mixture solution to yield a silver seed; (c) heating the mixture solution and then allowing the heated mixture solution to grow ultrathin silver nanowires from the silver seed under a pressure in an inert gas atmosphere; and (d) cooling the mixture solution in which the ultrathin silver nanowires have grown, followed by purification and separation to obtain the ultrathin silver nanowires. The silver nanowires are restrained from growing in thickness under a certain pressure, so that they are 30 nm or less in thickness and have a narrow diameter distribution, which leads to an improvement in aspect ratio.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 6, 2018
    Assignee: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Jin Yeol Kim, Eun Jong Lee, Min Hwa Chang, Hyun Ah Cho, Youn Soo Kim
  • Patent number: 9888417
    Abstract: A method and apparatus for switching a connection in a wireless communication system is provided. A source cell decides radio resource control (RRC) connection switching to a target cell, transmits an aggregated user equipment (UE) context transfer message to the target cell, and transmits an RRC connection switching message to a UE in coverage of the source cell. The RRC connection switching message includes information on an identity of the target cell and a period during which the UE should finish the RRC connection switching to the target cell.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: February 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Gene Beck Hahn, Jae Hoon Chung, Hye Young Choi, Eun Jong Lee, Hee Jeong Cho
  • Patent number: 9769714
    Abstract: The present invention relates to a method for updating secondary carrier information for preemptively allocating secondary carriers during handover and an apparatus for carrying out the method. A method in which a terminal performs handover in a broadband access system that supports multiple carriers according to one embodiment of the present invention comprises: a step in which a target base station receives, from a serving base station, a first message including carrier allocation information on at least one secondary carrier preemptively allocated to the terminal; a step of performing network reentry with the target base station; and judging whether the multi-carrier configuration of the serving base station and the multi-carrier configuration of the target base station are the same, and, if the configurations are different from each other, transmitting, to the target base station, a second message for requesting multi-carrier capability negotiation.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: September 19, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Eun Jong Lee, Ki Seon Ryu, Young Soo Yuk
  • Patent number: 9736775
    Abstract: The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: August 15, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: In-Uk Jung, Ki-Seon Ryu, Eun-Jong Lee, Yong-Ho Kim, Young-Soo Yuk
  • Patent number: 9681416
    Abstract: A method for efficiently transmitting and receiving a paging message and system information from and in a mobile station of a broadband wireless access system is disclosed. A method for receiving a paging message in a mobile station comprises receiving paging information from a serving base station, the paging information including paging sub group identifier (paging sub group ID) indicating a paging sub group to which the mobile station belongs; and receiving the paging message for a predetermined paging interval of the paging sub group, wherein the paging sub group is determined separately from a paging group and a geographical location determining the paging group, and is maintained while the mobile station is being operated in an idle mode.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: June 13, 2017
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Doo Hyun Sung, Jin Soo Choi, Han Gyu Cho, Jong Young Han, Kyu Jin Park, Hyung Ho Park, Jae Hoon Chung
  • Patent number: 9681286
    Abstract: Provided are a method and an apparatus for confirming the validity of a candidate cooperative device list for client cooperation in a wireless communication system. A base station searches for at least one candidate cooperation device for a source device, then an effective period timer, for an effective time command list for a list of candidate cooperation devices for a source device, is initiated, and a determination is made as to whether the list of candidate cooperation devices is valid. The base station and the source device are connected through a first system, and the base station and one recommended candidate cooperation device selected from the list of candidate cooperation devices are connected through a second system.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: June 13, 2017
    Assignee: LG Electronics Inc.
    Inventors: Hee Jeong Cho, Eun Jong Lee
  • Patent number: 9635522
    Abstract: Disclosed is a method for determining whether a machine-to-machine group identifier (MGID) for identifying a multicast service flow is supported in a wireless access system that supports machine-to-machine (M2M) communication, wherein the multicast service flow is shared by a group of M2M terminals within an M2M group zone that is allocated to the terminals. The method comprises the steps of: receiving from the first base station M2M group zone information of the first base station and neighboring base stations; receiving from the second base station system information of the second base station; and determining whether the MGID that is received from the first base station is supported by the second base station by comparing the system information of the second base station and the M2M group zone information on the neighboring base stations.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 25, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Eun Jong Lee, Gi Won Park, Young Soo Yuk, Hee Jeong Cho
  • Patent number: 9602248
    Abstract: A method for transmitting and receiving ARQ feedback information in a wireless communication system is disclosed. A method for allowing a mobile station to transmit an ARQ feedback in a broadband wireless access system includes receiving an ARQ block and an ARQ feedback polling from the base station, wherein the ARQ feedback polling requests the mobile station to transmit ARQ feedback information indicating whether the ARQ block is successfully received, receiving a first uplink resource for transmitting the ARQ feedback from the base station, and determining whether the received ARQ block is successfully received. The first uplink resource has a minimum size capable of being allocated to the ARQ feedback information.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: March 21, 2017
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Ki Seon Ryu, Hee Jeong Cho, Yong Ho Kim, Young Soo Yuk
  • Patent number: 9572005
    Abstract: Provided are a connection setting method and apparatus for client cooperation in a wireless communication system. A base station and a source device search for at least one candidate cooperative device for the source device. The base station determines whether a list of candidate cooperative devices for the source device is valid. The source device is connected to a recommended candidate cooperative device selected from the list of candidate cooperative devices. At this stage, the base station and the source device are connected through a first system, and the base station and the recommended candidate cooperative device are connected through a second system.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: February 14, 2017
    Assignee: LG Electronics Inc.
    Inventors: Hee Jeong Cho, Eun Jong Lee, Young Soo Yuk
  • Publication number: 20170041104
    Abstract: A method is provided for performing data transmission using a hybrid automatic repeat request (HARQ) scheme performed by a transmitter. The transmitter transmits uplink data to a receiver, and receives an acknowledgement (ACK) signal for the data from the receiver. The transmitter determines whether or not an uplink grant associated with the ACK signal is received. The transmitter keeps the uplink data in an HARQ buffer of the transmitter without flushing the uplink data if it is determined that the uplink grant associated with the ACK signal is not received within a certain time period from the receiver.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Applicant: LG Electronics Inc.
    Inventors: Doo Hyun SUNG, Hyung Ho PARK, Jin Soo CHOI, Jae Hoon CHUNG, Jong Young HAN, Kyu Jin PARK, Eun Jong LEE, Han Gyu CHO
  • Publication number: 20170013593
    Abstract: A method for efficiently transmitting and receiving a paging message and system information from and in a mobile station of a broadband wireless access system is disclosed. A method for receiving a paging message in a mobile station comprises receiving paging information from a serving base station, the paging information including paging sub group identifier (paging sub group ID) indicating a paging sub group to which the mobile station belongs; and receiving the paging message for a predetermined paging interval of the paging sub group, wherein the paging sub group is determined separately from a paging group and a geographical location determining the paging group, and is maintained while the mobile station is being operated in an idle mode.
    Type: Application
    Filed: September 19, 2016
    Publication date: January 12, 2017
    Inventors: Eun Jong LEE, Doo Hyun SUNG, Jin Soo CHOI, Han Gyu CHO, Jong Young HAN, Kyu Jin PARK, Hyung Ho PARK, Jae Hoon CHUNG
  • Patent number: 9507669
    Abstract: A method of data transmission using HARQ is provided. The method includes transmitting an uplink data, receiving an ACK/NACK signal for the uplink data, keeping the uplink data in a HARQ buffer when the ACK/NACK signal is an ACK signal, and retransmitting the uplink data when an uplink scheduling information for retransmission of the uplink data is received. In the present invention, a transmission error in an ACK/NACK signal is promptly detected, and thus data can be transmitted at a high speed.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: November 29, 2016
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jin Soo Choi, Jae Hoon Chung, Jong Young Han, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho
  • Patent number: 9491734
    Abstract: A method for efficiently transmitting and receiving a paging message and system information from and in a mobile station of a broadband wireless access system is disclosed. A method for receiving a paging message in a mobile station comprises receiving paging information from a serving base station, the paging information including paging sub group identifier (paging sub group ID) indicating a paging sub group to which the mobile station belongs; and receiving the paging message for a predetermined paging interval of the paging sub group, wherein the paging sub group is determined separately from a paging group and a geographical location determining the paging group, and is maintained while the mobile station is being operated in an idle mode.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: November 8, 2016
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Doo Hyun Sung, Jin Soo Choi, Han Gyu Cho, Jong Young Han, Kyu Jin Park, Hyung Ho Park, Jae Hoon Chung
  • Patent number: 9467931
    Abstract: Provided are a method and a device for entering a network for client cooperation in a wireless communication system. A first device, through a frame of a first system, receives a ranging request message from a second device, and transmits the received ranging request message to a base station. As a response thereto, the first device receives a range response message, which is a response to the ranging request message, from a base station of a second system, and through a frame of the first system, transmits the range response message to the second device.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: October 11, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Hee Jeong Cho, Eun Jong Lee, Young Soo Yuk
  • Publication number: 20160242114
    Abstract: The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 18, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: In-Uk JUNG, Ki-Seon RYU, Eun-Jong LEE, Yong-Ho KIM, Young-Soo YUK
  • Patent number: 9386456
    Abstract: A method and apparatus for transmitting an expanding request in a wireless communication system is provided. A first cell transmits an expanding request, which includes a cell off state indication which indicates the first cell is going to be turned off, and a cell off timer, to a second cell, receives an expanding request acknowledge as a response to the expanding request from the second cell, and turns off power. Alternatively, a method and apparatus for transmitting a shrinking request in a wireless communication system is provided. The first cell transmits a shrinking request, which includes a cell on state indication which indicates the first cell is going to be turned on, and a cell on timer, to a second cell, receives a shrinking request acknowledge as a response to the shrinking request from the second cell, and turns on power.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: July 5, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Gene Beck Hahn, Jae Hoon Chung, Hye Young Choi, Eun Jong Lee, Hee Jeong Cho
  • Publication number: 20160174114
    Abstract: The present invention relates to a method for updating secondary carrier information for preemptively allocating secondary carriers during handover and an apparatus for carrying out the method. A method in which a terminal performs handover in a broadband access system that supports multiple carriers according to one embodiment of the present invention comprises: a step in which a target base station receives, from a serving base station, a first message including carrier allocation information on at least one secondary carrier preemptively allocated to the terminal; a step of performing network reentry with the target base station; and judging whether the multi-carrier configuration of the serving base station and the multi-carrier configuration of the target base station are the same, and, if the configurations are different from each other, transmitting, to the target base station, a second message for requesting multi-carrier capability negotiation.
    Type: Application
    Filed: December 7, 2015
    Publication date: June 16, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Eun Jong LEE, Ki Seon RYU, Young Soo YUK
  • Patent number: 9357406
    Abstract: Provided are a mode conversion method for client cooperation in a wireless communication system and a device thereof. A first device converts a second system repetitively into an active mode which can receive a signal and a non-active mode which cannot receive the signal based on mode conversion information, and detects at least one second device based on the second system in the active mode. The first device is connected to the base station through the second system and another first system.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: May 31, 2016
    Assignee: LG Electronics Inc.
    Inventors: Hee Jeong Cho, Eun Jong Lee, Young Soo Yuk
  • Patent number: 9357487
    Abstract: The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 31, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: In-Uk Jung, Ki-Seon Ryu, Eun-Jong Lee, Yong-Ho Kim, Young-Soo Yuk