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: 9571658
    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: March 20, 2015
    Date of Patent: February 14, 2017
    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: 20170032765
    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: Application
    Filed: July 19, 2016
    Publication date: February 2, 2017
    Inventors: Yeo-Chang YOON, Myung-Hwan LEE, Jong-Ho PARK
  • Publication number: 20170031991
    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: Application
    Filed: July 28, 2016
    Publication date: February 2, 2017
    Inventors: Shin-Jo KONG, Jong-Ho PARK, Myung-Hwan LEE
  • Patent number: 9502966
    Abstract: A pumping circuit includes a charge pump configured to generate a pumping voltage based on a first voltage in response to an oscillation signal, and an oscillator configured to provide a period-controlled oscillation signal based on the first voltage and a second voltage.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: November 22, 2016
    Assignee: SK hynix Inc.
    Inventors: Myung Hwan Lee, Yun Seok Hong
  • Patent number: 9478260
    Abstract: A semiconductor device may include a target voltage generation section configured to generate first and second target voltages. The semiconductor device may include a comparison signal generation section configured to compare levels of the first and second target voltages with levels of first and second internal voltages, and generate first and second comparison signals. The semiconductor device may include a latch code generation section configured to latch global codes and output first and second latch codes in response to the first and second comparison signals. The semiconductor device may include a selection code generation section configured to generate first and second selection codes for adjusting levels of the first and second internal voltages using either the global codes or the first and second latch codes.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: October 25, 2016
    Assignee: SK HYNIX INC.
    Inventor: Myung Hwan Lee
  • Patent number: 9438215
    Abstract: A buffer circuit includes an amplifying unit suitable for comparing an input voltage of an input terminal with an output voltage of an output terminal, a current sinking unit suitable for controlling a sinking current of the amplifying unit when the input voltage is varied, and a current compensation unit suitable for uniformly maintaining a sinking current amount of the current sinking unit.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: September 6, 2016
    Assignee: SK Hynix Inc.
    Inventor: Myung-Hwan Lee
  • Publication number: 20160252978
    Abstract: An electronic device for activating an application based on a rotation input is provided. The electronic device includes a memory configured to store at least one of angular range data and angular data for activating an application, and a processor configured to activate the application if a rotation angle according to a rotation input corresponds to at least one of the angular range data and the angular data.
    Type: Application
    Filed: February 24, 2016
    Publication date: September 1, 2016
    Inventors: Sung Sik YOO, Yong Ju YU, Seul A KIM, Myung Hwan LEE
  • Publication number: 20160254033
    Abstract: A semiconductor device may include a target voltage generation section configured to generate first and second target voltages. The semiconductor device may include a comparison signal generation section configured to compare levels of the first and second target voltages with levels of first and second internal voltages, and generate first and second comparison signals. The semiconductor device may include a latch code generation section configured to latch global codes and output first and second latch codes in response to the first and second comparison signals. The semiconductor device may include a selection code generation section configured to generate first and second selection codes for adjusting levels of the first and second internal voltages using either the global codes or the first and second latch codes.
    Type: Application
    Filed: May 28, 2015
    Publication date: September 1, 2016
    Inventor: Myung Hwan LEE
  • Patent number: 9269113
    Abstract: A screen generation method of an energy management system according to the present disclosure may include performing system visualization modeling indicating a connection relationship between monitoring facilities in a power system to generate a first screen; generating a file containing information on a connection relationship between facilities used during the first screen generation; and generating a second screen for monitoring facilities during the real-time operation using the generated file.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: February 23, 2016
    Assignee: LSIS Co., Ltd.
    Inventors: Yeo Chang Yoon, Yong Hark Shin, Jong Ho Park, Myung Hwan Lee, Seung Ju Lee
  • Publication number: 20160048209
    Abstract: A control method in an input device is provided. The control method includes receiving, from a portable device, event information corresponding to coordinates indicated by the input device, and controlling a display of the input device based on the received event information.
    Type: Application
    Filed: October 27, 2015
    Publication date: February 18, 2016
    Inventors: Jin-Hyoung PARK, Yeon-Gyeong GIL, Myung-Hwan LEE
  • Publication number: 20150362945
    Abstract: An internal voltage generation circuit may include a first internal voltage generation block configured for receiving a first external voltage and for generating an internal voltage with a voltage level corresponding to a voltage level of a first reference voltage; and a second internal voltage generation block configured for receiving a second external voltage, generate the internal voltage with a voltage level corresponding to a voltage level of a second reference voltage, compare voltage levels of the second reference voltage and the internal voltage, and generate a comparison signal, wherein only one of the first and second internal voltage generation blocks is activated and the other is deactivated, in response to an enable signal, and the second internal voltage generation block disables the comparison signal to a voltage level of the first external voltage when the first internal voltage generation block is activated.
    Type: Application
    Filed: September 16, 2014
    Publication date: December 17, 2015
    Inventor: Myung Hwan LEE
  • Publication number: 20150268684
    Abstract: An apparatus for data processing is provided. The apparatus includes: a data obtaining unit obtaining power system data from pieces of power system equipment; a power system monitoring unit displaying a power system operation state based on power system data obtained from the data obtaining unit, raising an alarm when the power system operation state changes, and outputting reference data corresponding to data on which the alarm occurs; a DB storing the power system data obtained from the data obtaining unit, alarm raising criterion information on the power system data, and reference data corresponding to the power system data; and a remote control unit transmitting a control signal for controlling the pieces of power system equipment based on the power system operation state displayed on the power system monitoring unit.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 24, 2015
    Applicant: LSIS CO., LTD.
    Inventors: SEUNG JU LEE, MYUNG HWAN LEE, YEO CHANG YOON, SHIN JO KONG, JONG HO PARK
  • Publication number: 20150271340
    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: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Yong Ju YU, Sung Sik YOO, Yoo Kyung KOH, Yun Jeong KO, Seul A KIM, Myung Hwan LEE, Ji Ho LEE
  • Publication number: 20150263711
    Abstract: A buffer circuit includes an amplifying unit suitable for comparing an input voltage of an input terminal with an output voltage of an output terminal, a current sinking unit suitable for controlling a sinking current of the amplifying unit when the input voltage is varied, and a current compensation unit suitable for uniformly maintaining a sinking current amount of the current sinking unit.
    Type: Application
    Filed: September 26, 2014
    Publication date: September 17, 2015
    Inventor: Myung-Hwan LEE
  • Publication number: 20150177767
    Abstract: An energy management system is provided. The energy management system includes a single line diagram creation server creating single line diagram data and distributing created single line diagram data and single line diagram data information to any one of a workstation or a web server; a workstation obtaining the single line diagram data from the single line diagram creation server or a web server; and the web server performing communication between web servers in respective dispatching centers, and sharing and synchronizing the single line diagram data when the communication is performed.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 25, 2015
    Applicant: LSIS CO., LTD.
    Inventors: SEUNG JU LEE, MYUNG HWAN LEE, YEO CHANG YOON, SHIN JO KONG, JONG HO PARK
  • Publication number: 20150177838
    Abstract: A system for providing haptic feedback is provided. The system includes a portable terminal including a body and a first connector part. A cover device that is detachably connected to the body includes a touch sensor for generating a touch signal, a first haptic actuator that generates vibrations based on a haptic signal output from the body of the portable terminal. The haptic signal corresponds to the generated touch signal. A vibration plate is connected to a side of the first haptic actuator and is configured to transfer the generated vibrations to the cover device.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 25, 2015
    Inventors: Yu-dong BAE, Jeong-rok Park, Jin-hyoung Park, Eun-hwa Lee, Myung-hwan Lee
  • Publication number: 20150178288
    Abstract: A method of playing an operation record of an energy management system (EMS) is provided. The method includes setting a play section; acquiring operation record data corresponding to a set play section; playing acquired operation record data; determining whether an additional event occurs during the playing of the operation record data; checking an execution file corresponding to the additional event when it is determined that the additional event occurs; and playing a checked execution file along with the operation record data.
    Type: Application
    Filed: July 23, 2014
    Publication date: June 25, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Seung Ju LEE, Yeo Chang YOON, Myung Hwan LEE, Shin Jo KONG, Jong Ho PARK
  • Publication number: 20150029624
    Abstract: A protection circuit includes a high voltage detection unit configured to activate a high voltage detection signal where a first voltage exceeds a predetermined voltage; and a discharge unit coupled with the first voltage in response to the high voltage detection signal, and configured to discharge the first voltage to a ground voltage in response to a voltage level acquired by dropping the first voltage.
    Type: Application
    Filed: January 16, 2014
    Publication date: January 29, 2015
    Applicant: SK hynix Inc.
    Inventors: Yun Seok HONG, Myung Hwan LEE
  • Publication number: 20140369095
    Abstract: A pumping circuit includes a charge pump configured to generate a pumping voltage based on a first voltage in response to an oscillation signal, and an oscillator configured to provide a period-controlled oscillation signal based on the first voltage and a second voltage.
    Type: Application
    Filed: November 13, 2013
    Publication date: December 18, 2014
    Applicant: SK hynix Inc.
    Inventors: Myung Hwan LEE, Yun Seok HONG
  • Publication number: 20140347298
    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: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyoung PARK, Yeon-Gyeong Gil, Myung-Hwan Lee