Patents by Inventor Myung-hwan Lee

Myung-hwan 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: 11025091
    Abstract: A hierarchical power control system associated with a cloud server includes a first microgrid cell, a second microgrid cell, a third microgrid cell, a middleware server, and an integrated control system. The first microgrid cell includes a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load having a power state managed by the first energy storage system (ESS). The second microgrid cell includes a second load and a second energy storage system (ESS) for managing a power state of the second load. The third microgrid cell includes a third load. The middleware server communicates with the first to third microgrid cells. The integrated control system receives power supply-demand state information of the first to third microgrid cells through the middleware server, and establishes an integrated operation schedule based on the received power supply-demand state information of the first to third microgrid cells.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: June 1, 2021
    Assignee: LSIS CO., LTD.
    Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
  • Publication number: 20200220380
    Abstract: A hierarchical power control system associated with a cloud server includes a first microgrid cell, a second microgrid cell, a third microgrid cell, a middleware server, and an integrated control system. The first microgrid cell includes a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load having a power state managed by the first energy storage system (ESS). The second microgrid cell includes a second load and a second energy storage system (ESS) for managing a power state of the second load. The third microgrid cell includes a third load. The middleware server communicates with the first to third microgrid cells. The integrated control system receives power supply-demand state information of the first to third microgrid cells through the middleware server, and establishes an integrated operation schedule based on the received power supply-demand state information of the first to third microgrid cells.
    Type: Application
    Filed: March 13, 2020
    Publication date: July 9, 2020
    Inventors: Jae-Seong SHIM, Myung-Hwan LEE, Yong-Hark SHIN
  • Patent number: 10700521
    Abstract: The present disclosure relates to a hierarchical type power control system. The hierarchical type power control system connected to a cloud server includes: a first microgrid cell including a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load that a power state thereof is managed by the first ESS; a second microgrid cell including a second load and a second ESS managing a power state of the second load; a third microgrid cell including a third load; a middleware server communicating with the first to third microgrid servers; and an integrated control system communicating the middleware server and integrally controlling power supply states of the first to third microgrid cells, wherein the first microgrid cell and the second microgrid cell are connected to each other through a converter to interchange power therebetween.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: June 30, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
  • Patent number: 10637288
    Abstract: A hierarchical power control system associated with a cloud server includes a first microgrid cell, a second microgrid cell, a third microgrid cell, a middleware server, and an integrated control system. The first microgrid cell includes a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load having a power state managed by the first energy storage system (ESS). The second microgrid cell includes a second load and a second energy storage system (ESS) for managing a power state of the second load. The third microgrid cell includes a third load. The middleware server communicates with the first to third microgrid cells. The integrated control system receives power supply-demand state information of the first to third microgrid cells through the middleware server, and establishes an integrated operation schedule based on the received power supply-demand state information of the first to third microgrid cells.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 28, 2020
    Assignee: LSIS CO., LTD.
    Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
  • Patent number: 10467358
    Abstract: A simulation apparatus includes a database configured to a set line parameter for a system line configuring a power system; a parameter error detector configured to compare surveyed data measured in the system line and the line parameter to detect error of the line parameter; a system analysis simulator configured to perform a system analysis simulation based on the surveyed data and the line parameter; and a monitor configured to display an error detection result of the line parameter from the parameter error detector and a system analysis simulation result performed in the system analysis simulator.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 5, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Myung Hwan Lee, Young In Kim, Hong Joo Kim, Chong Suk Song
  • Patent number: 10387005
    Abstract: A monitoring apparatus in an electric power system includes a communication unit for performing communication with a data server included in the electric power system to receive real-time data, a user input unit for receiving user input for creating a monitoring screen with the real-time data by using a tabular function, and a display unit for displaying the monitoring screen. The apparatus further includes a control unit for creating the monitoring screen in response to the user input to display it in the display unit, to decide at least one or more tasks taking time more than a given time in processing them among a plurality of tasks for performing the tabular function, and to process the at least one or more task and the other remaining tasks than the at least one or more task among the plurality of tasks simultaneously in parallel.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: August 20, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Seok-Chan Lee, Myung-Hwan Lee, Seung-Ju Lee, Yeo-Chang Yoon
  • Patent number: 10311056
    Abstract: Disclosed embodiments relate to data management apparatuses and methods of an energy management system. In some embodiments, the data management apparatus includes: a control unit configured to process data collected from a power system; and a real-time database composed of the processed data. The control unit may receive an input for entry selection for data inquiry on the real-time database irrespective of a hierarchy of a data entry and inquire data from the real-time database based on the received input.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Shin-Jo Kong, Jong-Ho Park, Myung-Hwan Lee
  • Patent number: 10263511
    Abstract: A charge pumping apparatus in accordance with an embodiment may include a charge pump output voltage detector, a pump oscillator, and a charge pump switching controller. The charge pump output voltage detector may detect a charge pump output voltage, and may selectively output an enable signal according to the detected charge pump output voltage. The pump oscillator may output an oscillation signal during a period of time when the enable signal is activated. The charge pump switching controller may selectively operate one of a first pump and a second pump according to a predetermined stabilization time, the enable signal, and the oscillation signal.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 16, 2019
    Assignee: SK hynix Inc.
    Inventor: Myung Hwan Lee
  • Patent number: 10237345
    Abstract: Disclosed embodiments relate to a synchronizing method of a client device in an energy management system. In some embodiments, the method includes: deciding a synchronization object server for downloading synchronization data; downloading the synchronization data from the decided synchronization object server; determining whether or not the status of operation of the client device is synchronizable, based on the downloaded synchronization data; and performing a synchronization operation for the downloaded synchronization data based on a result of the determination.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: March 19, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Jong-Ho Park, Myung-Hwan Lee, Seung-Ju Lee, Yeo-Chang Yoon, Shin-Jo Kong, Jang-Hyeok Yun
  • Publication number: 20180316222
    Abstract: A hierarchical power control system associated with a cloud server includes a first microgrid cell, a second microgrid cell, a third microgrid cell, a middleware server, and an integrated control system. The first microgrid cell includes a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load having a power state managed by the first energy storage system (ESS). The second microgrid cell includes a second load and a second energy storage system (ESS) for managing a power state of the second load. The third microgrid cell includes a third load. The middleware server communicates with the first to third microgrid cells. The integrated control system receives power supply-demand state information of the first to third microgrid cells through the middleware server, and establishes an integrated operation schedule based on the received power supply-demand state information of the first to third microgrid cells.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Inventors: Jae-Seong SHIM, Myung-Hwan LEE, Yong-Hark SHIN
  • Publication number: 20180316187
    Abstract: The present disclosure relates to a hierarchical type power control system. The hierarchical type power control system connected to a cloud server includes: a first microgrid cell including a first energy storage system (ESS) having an uninterruptible power supply (UPS) structure and a first load that a power state thereof is managed by the first ESS; a second microgrid cell including a second load and a second ESS managing a power state of the second load; a third microgrid cell including a third load; a middleware server communicating with the first to third microgrid servers; and an integrated control system communicating the middleware server and integrally controlling power supply states of the first to third microgrid cells, wherein the first microgrid cell and the second microgrid cell are connected to each other through a converter to interchange power therebetween.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Inventors: Jae-Seong SHIM, Myung-Hwan LEE, Yong-Hark SHIN
  • Patent number: 10083165
    Abstract: Disclosed herein is a method of controlling data display device. The method includes: loading a monitoring view to initialize it; determining whether to display a tabular view; setting a tabular module if it is determined that the tabular view is to be displayed; displaying the tabular view according to set conditions; and checking whether to perform a view update mode during the displaying the tabular view.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 25, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Yeo-Chang Yoon, Myung-Hwan Lee, Seok-Chan Lee, Seung-Ju Lee
  • Patent number: 10054967
    Abstract: A semiconductor device may be provided. The semiconductor device may include a reference voltage generation circuit suitable for controlling a level of a reference voltage depending on an internal resistance value, and controlling the level of the reference voltage depending on the internal resistance value.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: August 21, 2018
    Assignee: SK hynix Inc.
    Inventor: Myung Hwan Lee
  • Patent number: 9948784
    Abstract: An electronic device and method are disclosed, including a first communication module configured to perform a cellular communication, a second communication module configured to perform a communication to connect the electronic device to an external electronic device, and at least one processor electrically connected to the first and second communication modules, executing the method, which includes activating the first communication module in response to detecting a preset condition, and transmitting a signal requesting call forwarding via the first communication module.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: April 17, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Ju Yu, Sung Sik Yoo, Yoo Kyung Koh, Yun Jeong Ko, Seul A Kim, Myung Hwan Lee, Ji Ho Lee
  • Publication number: 20180076709
    Abstract: A charge pumping apparatus in accordance with an embodiment may include a charge pump output voltage detector, a pump oscillator, and a charge pump switching controller. The charge pump output voltage detector may detect a charge pump output voltage, and may selectively output an enable signal according to the detected charge pump output voltage. The pump oscillator may output an oscillation signal during a period of time when the enable signal is activated. The charge pump switching controller may selectively operate one of a first pump and a second pump according to a predetermined stabilization time, the enable signal, and the oscillation signal.
    Type: Application
    Filed: April 13, 2017
    Publication date: March 15, 2018
    Applicant: SK hynix Inc.
    Inventor: Myung Hwan LEE
  • Publication number: 20180039295
    Abstract: A semiconductor device may be provided. The semiconductor device may include a reference voltage generation circuit suitable for controlling a level of a reference voltage depending on an internal resistance value, and controlling the level of the reference voltage depending on the internal resistance value.
    Type: Application
    Filed: March 28, 2017
    Publication date: February 8, 2018
    Applicant: SK hynix Inc.
    Inventor: Myung Hwan LEE
  • Patent number: 9886089
    Abstract: A method and apparatus for controlling vibration in a portable device are provided. The method includes detecting a user input corresponding to a gesture made on a touch screen by an input device, detecting an action attribute of the portable device corresponding to the user input, determining a first vibration to be output from the input device and a second vibration to be output from the portable device according to the action attribute, and controlling output of the first vibration from the input device and output of the second vibration from the portable device according to the action attribute.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: February 6, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jin-Hyoung Park, Yeon-Gyeong Gil, Myung-Hwan Lee
  • Patent number: 9881591
    Abstract: Embodiments of a display apparatus of an energy management system are presented. The display apparatus may include: a first screen updating unit including a drawing unit configured to determine a screen to be output based on a screen operation input and update data and an object included in the determined screen to configure an output-scheduled screen and a first temporary storage unit configured to store the configured output-scheduled screen; and a second screen updating unit configured to receive the stored output-scheduled screen and output the received output-scheduled screen through a screen output unit.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 30, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Yeo-Chang Yoon, Myung-Hwan Lee, Jong-Ho Park
  • Publication number: 20170351792
    Abstract: A simulation apparatus includes a database configured to a set line parameter for a system line configuring a power system; a parameter error detector configured to compare surveyed data measured in the system line and the line parameter to detect error of the line parameter; a system analysis simulator configured to perform a system analysis simulation based on the surveyed data and the line parameter; and a monitor configured to display an error detection result of the line parameter from the parameter error detector and a system analysis simulation result performed in the system analysis simulator.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Applicant: LSIS CO., LTD.
    Inventors: Myung Hwan LEE, Young In KIM, Hong Joo KIM, Chong Suk SONG
  • Publication number: 20170255607
    Abstract: Disclosed herein is a method of controlling data display device. The method includes: loading a monitoring view to initialize it; determining whether to display a tabular view; setting a tabular module if it is determined that the tabular view is to be displayed; displaying the tabular view according to set conditions; and checking whether to perform a view update mode during the displaying the tabular view.
    Type: Application
    Filed: November 30, 2016
    Publication date: September 7, 2017
    Inventors: Yeo-Chang YOON, Myung-Hwan LEE, Seok-Chan LEE, Seung-Ju LEE