Lg Electronics Inc.

Lsis Co., Ltd.

Lg Information & Communications, Ltd.

Hong Joo Kim

Young In Kim

Yoon Sung Cho

Ae Kyoung Bae

Jae Woong Yun

Jong Cheol Jung

Hee B Park

Myung Hwan Lee

Chong Suk Song

Hae Seock Yang

Nam Sik Joo

Keun Taek Lee

Sin Woo Kim

Ae Kyong Bae

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.

Simulation apparatus and operating method thereof

A communication system is provided. The communication system includes a communication device receiving a state signal from at least one remote terminal unit (RTU), generating signal quality data for the state signal, and transmitting, to a control device, the generated signal quality data and the received state signal. The control device generates state estimation data for each of the at least one RTU on a basis of the state signal received from the communication device, corrects the signal quality data transmitted from the communication device according to at least one preset condition, and changes the generated state estimation data on a basis of the corrected signal quality data and the received state signal.

Communication system and operating method thereof

A mobile terminal and controlling method thereof are disclosed, by which a selection and/or execution of an application can be designated using a list of applications currently executed in a multitasking environment. The present invention includes a display unit, a user input unit configured to receive an input of a command from a user, and a controller, when a plurality of applications are being executed, if there is a first input via the user input unit, controlling a list of a plurality of the currently executed applications to be displayed on a first region, the controller, if one of at least one or more applications running in the background in the list is selected by a second input via the user input unit, controlling the selected application to be displayed on a second region of the display unit by having a prescribed visual effect applied thereto.

Mobile terminal and controlling method thereof

A dynamic stability assessment device is provided. The dynamic stability assessment device includes an energy management system (EMS); and a dynamic stability assessment system for dynamic stability assessment on a power system of the energy management system. The EMS includes a plurality of facility names with respect to a single facility, and processes to power system data based on any one of the plurality of facility names according to a state of the power system.

Device and method for assessing dynamic stability

A communication system includes a first remote terminal unit (RTU) outputting first RTU data, a second RTU outputting second RTU data, and a remote control center applying a first RTU weight, which is a weight for the first RTU, to the output first RTU data and a second RTU weight, which is a weight for the second RTU, to the output second RTU data, and generating state estimation information for the first and second RTUs on the basis of the first and second RTU data to which each of the first and second RTU weights are applied.

A communication system is provided. The communication system includes a plurality of remote terminal units (RTUs) outputting a state signal. The communication system includes a communication device receiving the output state signal from each of the plurality of RTUs and generating signal quality information, which is quality information on the received state signal. The communication system includes a control device obtaining the signal quality information and the state signal, determining at least one RTU among the plurality of RTUs as a load according to a preset condition in response to the obtained signal quality information, and generating system analysis information on the plurality of RTUs, which includes the at least one RTU determined as the load, on the basis of the state signal.

A device for matching an antenna impedance in a portable radio telephone having transmission and receiving circuits, a foldable casing enclosing the radio, the foldable casing movable between an unfolded position and a folded position, an antenna movable between an extracted position from the foldable casing and a retracted position into the foldable casing includes means for sensing whether the foldable casing is in the unfolded position and for sensing whether the antenna is in the extracted position, and for providing a sensing signal in response thereto, and means for matching an impedance of the antenna and an impedance of the radio in response to the sensing signal, thereby making an optimal matching of impedances between the antenna and the radio according to the states of the folder casings and the antenna, and according to the transmission/reception mode.

Antenna impedance matching device and method for a portable radio telephone

Mobile station and display therein, in which a plurality of LCDs are made operative from one operation means for recognizing information on an originating station and information on a state of a receiver station even if a folding cover is not opened in a folder type mobile station, the mobile station including a folding cover movable between an opened position and a closed position, first display means mounted on one side of the folding cover having 'n' first signal lines and 'k' scan lines, second display means mounted on the other side of the folding cover having &#x2018;n&#x2019; second signal lines and &#x2018;m&#x2013;k&#x2019; scan electrodes lines, and an operator for operating the first and second display means having &#x2018;m&#x2019; scan electrode lines connecting the &#x2018;k&#x2019; scan lines in the first display means and the &#x2018;m&#x2013;k&#x2019; scan lines in the second display means, and &#x2018;n&#x2019; signal electrode lines connecting the first signal lines and the second signal lines, respectively.

Mobile communication station and display therein

A belt clip device is provided for a mobile communication terminal unit. The belt clip device includes a terminal unit holder for receiving and holding the terminal unit, a clamp provided on one side of the terminal unit holder and adapted to resiliently clip a belt worn by a user, thereby allowing the belt clip device to be mounted to the belt, and a connector for rotatably connecting the clamp to the terminal unit holder. The clamp includes a base portion, a panel portion hingably coupled at one end thereof to the base portion and spaced apart from the base portion to define a gap for receiving the belt therebetween, a spring adapted to urge the base portion and the panel portion in such a fashion that the gap is resiliently maintained, and a stopper provided at the other end of the panel portion and adapted to prevent the clamp from being separated from the belt. The connector includes a hinging member hingably coupled to the base portion of the clamp to hinge about a hinge shaft with respect to the clamp, and a rotating shaft for rotatably coupling the terminal unit holder to the hinging member in such a fashion that the terminal unit holder rotates about the rotating shaft with respect to the hinging member. By this configuration, the user can conveniently view a display window of the terminal unit without separating the terminal unit from the terminal unit holder.

Belt clip device for mobile communication terminal unit

A liquid crystal display device and a mobile telecommunication terminal using the same can display messages such as information on a calling party, a received message, and temporal information even when a folding cover is not open by using a double-faced liquid crystal display device. The double-faced liquid crystal display device includes a first substrate having a common electrode, a second substrate having n scan electrodes and m signal electrodes, a liquid crystal layer disposed between the first and second substrates, a polarizer, and a reflector, wherein the liquid crystal display device is divided into a first region and a second region, and the polarizer and the reflector are symmetrically disposed so that the first region is displayed in a first direction and the second region is displayed in a second direction.

Liquid crystal display device and mobile telecommunication terminal using the same

Mobile telephony station with a speaker phone function including a front panel having a plurality of menu selecting keys for selecting menu, an LCD panel for displaying various information and messages, a mike for putting in a transmission speech, and a first speaker for presenting a received speech, a flip hinged on the front panel for protecting the LCD panel, a sensor switch on the front panel for sensing opening/closing of the flip, and a second speaker for selectively presenting a received speech, together with the first speaker, depending on a switching state of the sensor switch, to carry out the speaker phone function, thereby permitting to select the speaker phone function automatically at opening a flip, in a setting mode, or by using a toggle switch.

Growing community of inventors

Seoul, South Korea

Hong Joo Kim