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).
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Patent number: 11025091Abstract: 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: GrantFiled: March 13, 2020Date of Patent: June 1, 2021Assignee: LSIS CO., LTD.Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
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Publication number: 20200220380Abstract: 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: ApplicationFiled: March 13, 2020Publication date: July 9, 2020Inventors: Jae-Seong SHIM, Myung-Hwan LEE, Yong-Hark SHIN
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Patent number: 10700521Abstract: 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: GrantFiled: April 27, 2018Date of Patent: June 30, 2020Assignee: LSIS CO., LTD.Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
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Patent number: 10637288Abstract: 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: GrantFiled: April 27, 2018Date of Patent: April 28, 2020Assignee: LSIS CO., LTD.Inventors: Jae-Seong Shim, Myung-Hwan Lee, Yong-Hark Shin
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Patent number: 10467358Abstract: 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: GrantFiled: May 31, 2017Date of Patent: November 5, 2019Assignee: LSIS CO., LTD.Inventors: Myung Hwan Lee, Young In Kim, Hong Joo Kim, Chong Suk Song
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Patent number: 10387005Abstract: 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: GrantFiled: November 15, 2016Date of Patent: August 20, 2019Assignee: LSIS CO., LTD.Inventors: Seok-Chan Lee, Myung-Hwan Lee, Seung-Ju Lee, Yeo-Chang Yoon
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Patent number: 10311056Abstract: 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: GrantFiled: July 28, 2016Date of Patent: June 4, 2019Assignee: LSIS CO., LTD.Inventors: Shin-Jo Kong, Jong-Ho Park, Myung-Hwan Lee
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Patent number: 10263511Abstract: 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: GrantFiled: April 13, 2017Date of Patent: April 16, 2019Assignee: SK hynix Inc.Inventor: Myung Hwan Lee
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Patent number: 10237345Abstract: 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: GrantFiled: September 1, 2016Date of Patent: March 19, 2019Assignee: LSIS CO., LTD.Inventors: Jong-Ho Park, Myung-Hwan Lee, Seung-Ju Lee, Yeo-Chang Yoon, Shin-Jo Kong, Jang-Hyeok Yun
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Publication number: 20180316222Abstract: 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: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Jae-Seong SHIM, Myung-Hwan LEE, Yong-Hark SHIN
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Publication number: 20180316187Abstract: 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: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Jae-Seong SHIM, Myung-Hwan LEE, Yong-Hark SHIN
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Patent number: 10083165Abstract: 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: GrantFiled: November 30, 2016Date of Patent: September 25, 2018Assignee: LSIS CO., LTD.Inventors: Yeo-Chang Yoon, Myung-Hwan Lee, Seok-Chan Lee, Seung-Ju Lee
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Patent number: 10054967Abstract: 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: GrantFiled: March 28, 2017Date of Patent: August 21, 2018Assignee: SK hynix Inc.Inventor: Myung Hwan Lee
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Patent number: 9948784Abstract: 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: GrantFiled: January 9, 2017Date of Patent: April 17, 2018Assignee: 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
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Publication number: 20180076709Abstract: 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: ApplicationFiled: April 13, 2017Publication date: March 15, 2018Applicant: SK hynix Inc.Inventor: Myung Hwan LEE
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Publication number: 20180039295Abstract: 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: ApplicationFiled: March 28, 2017Publication date: February 8, 2018Applicant: SK hynix Inc.Inventor: Myung Hwan LEE
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Patent number: 9886089Abstract: 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: GrantFiled: May 21, 2014Date of Patent: February 6, 2018Assignee: Samsung Electronics Co., LtdInventors: Jin-Hyoung Park, Yeon-Gyeong Gil, Myung-Hwan Lee
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Patent number: 9881591Abstract: 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: GrantFiled: July 19, 2016Date of Patent: January 30, 2018Assignee: LSIS CO., LTD.Inventors: Yeo-Chang Yoon, Myung-Hwan Lee, Jong-Ho Park
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Publication number: 20170351792Abstract: 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: ApplicationFiled: May 31, 2017Publication date: December 7, 2017Applicant: LSIS CO., LTD.Inventors: Myung Hwan LEE, Young In KIM, Hong Joo KIM, Chong Suk SONG
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Publication number: 20170255607Abstract: 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: ApplicationFiled: November 30, 2016Publication date: September 7, 2017Inventors: Yeo-Chang YOON, Myung-Hwan LEE, Seok-Chan LEE, Seung-Ju LEE