Patent application number | Description | Published |
20110035077 | Distribution automation system for reactive power compensation and its voltage control method - Provided are a novel distribution automation system and its voltage control method, which can supply a stable voltage to a user by properly adjusting the settings of a control device so as to compensate for reactive power at each load terminal. The voltage control method includes: a first step of modeling a distribution system in the form of a distribution load based on constants of four terminals according to the connection type of each node and a distribution line, which constitute the distribution system; a second step of determining a formula for estimating the magnitude of a voltage at a node from a current value of an adjacent node; a third step of determining an objective function including the magnitude of the voltage, calculated through the formula determined in the second step, and a control variable for controlling the magnitude of the voltage; and a fourth step of calculating a value of the control variable to allow the determined objective function to have a minimum value and applying the calculated value to each voltage control device provided in the distribution system. | 02-10-2011 |
20120036355 | Method and system for encrypting and decrypting transaction in power network - Disclosed herein is a method and system for universally encrypting and decrypting a transaction which is a functional unit in a power network, while reducing a system load. When a transmitting node encrypts a transaction, the serial number of the transaction corresponding to each piece of data included in the transaction is present, and data is selected either using a predetermined criterion or randomly, and is then encrypted. The transaction serial number is added to the encrypted data. A receiving node selects data to be decrypted using the transaction serial number or a predetermined criterion. Through this operation, encryption has been conducted from the standpoint of the transaction, but only part of the data is encrypted based on a probability from the standpoint of the data, so that a system load is reduced, thus enabling efficient encryption and decryption technologies to be implemented. | 02-09-2012 |
20140232186 | APPARATUS AND METHOD FOR MINIMIZING DISTRIBUTION LOSS IN CONSIDERATION OF SECTION LOAD CHARACTERISTICS OF DISTRIBUTION SYSTEM - Provided are an apparatus and method for minimizing a distribution loss which reconstructs the system construction of a distribution system in consideration of section load characteristics of mutually different distribution system. The apparatus for minimizing a distribution loss which determines a loss calculation period for detecting a loss minimization time point using mutually different distribution systems, calculates loss values of mutually different distribution systems set according to each time point of the loss calculation period, and calculates a total loss value, and selects the mutually different distribution systems one by one during the loss calculation period, and calculates a loss value for specific systems of each distribution system in consideration of a change of a section load in each selected distribution system, determines a loss minimization time point using the specific system loss value of each distribution system and the total loss value. | 08-21-2014 |
20140244061 | APPARATUS AND METHOD FOR ADJUSTING A VOLTAGE IN A POWER DISTRIBUTION SYSTEM - The present invention relates to an apparatus and method for performing adjustment to optimize the voltage for each distribution network in a power distribution system. The apparatus for adjusting a voltage in the power distribution system adjusts the voltage by switching a switch that lies on a path in the power distribution system. The apparatus determines a switch that is to become a switching target from among switches lying on the path, obtains a voltage optimization value of the determined switching target switch, selects a switch having the minimum voltage optimization value by changing the switching target switch to another switch in order to obtain the voltage optimization value, and adjusts the voltage through switching of the selected switch. | 08-28-2014 |
20140247055 | SYSTEM AND METHOD FOR DETECTING AN ABNORMAL WAVEFORM IN A POWER DISTRIBUTION SYSTEM - The present invention relates to a system and method for an abnormal waveform in a power distribution system that quickly transmits abnormal waveform-related data of a large size by changing a protocol according to data size. The system for detecting an abnormal power quality waveform comprises: a plurality of RTUs for measuring abnormal waveform when a waveform measuring signal received, and transmitting an abnormal waveform using a protocol set according to the size of the abnormal waveform; an FEP for transmitting the waveform measuring signal to an RTU installed in a failure section, and receiving and storing the abnormal waveform from the RTU; a main server for transmitting the waveform measuring signal through the FEP to the RTU installed in the failure section, performing controlling to measure the abnormal waveform generated in the failure section, and receiving and displaying the abnormal waveform according to the waveform measuring signal. | 09-04-2014 |
Patent application number | Description | Published |
20090027425 | DISPLAY DEVICE AND DRIVING METHOD FOR DISPLAY DEVICE - A display device includes: a display panel which comprises sub-pixels including an R sub-pixel, a G sub-pixel, a B sub-pixel and a W sub-pixel and disposed in a matrix form, a gate line and a data line which insulatingly cross each other and transmit a driving signal to the sub-pixels; a driver connected to the gate line and the data line; and a signal controller which comprises a signal converter including a W extracting unit to convert R, G and B image signals into R, G, B and W image signals and a rendering unit to render the R, G, B and W image signals so that eight sub-pixels adjacent in an extending direction of the gate line display three pixels, and controls the driver to apply rendered image signals to the display panel. | 01-29-2009 |
20090040214 | SIGNAL PROCESSOR, LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF DRIVING LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a signal processor using an (n−1)-th conversion signal corresponding to an (n−1)-th raw image signal of an (n−1)-th frame to correct an n-th raw image signal of an n-th frame, and outputting an n-th corrected image signal, the (n−1)-th raw image signal. The n-th raw image signal, and the n-th corrected image signal each have ‘a’ bits and the (n−1)-th conversion signal has ‘b’ bits. The ‘b’ bits is smaller than the ‘a’ bits (a>b). A liquid crystal panel displays an image corresponding to the n-th corrected image signal. | 02-12-2009 |
20090146964 | TOUCH SENSING DISPLAY DEVICE AND DRIVING METHOD THEREOF - In a touch sensing display device, a plurality of sensor scanning lines extend in a first direction and sequentially receive a first voltage, and a plurality of sensor data lines extend in a second, different, direction. A plurality of sensing elements are formed in regions defined by the sensor scanning lines and the sensor data lines, and each sensing element transmits the first voltage from a corresponding sensor scanning line to a corresponding sensor data line responsive to an external touch. A sensing signal processor converts voltages of the sensor data lines into sensing data, and, a touch determining unit processes the sensing data corresponding to the sensor scanning lines by at least one scanning line to determine positions of touch regions generated during at least one frame. | 06-11-2009 |
20100020029 | TOUCH SCREEN DISPLAY DEVICE AND DRIVING METHOD OF THE SAME - A touch screen display device and a driving method of the same are provided. The touch screen display device includes a touch screen display panel including a plurality of first sensing lines that extend in a first direction, a plurality of second sensing lines that extend in a second direction and cross the first direction, and a plurality of touch sensing elements respectively arranged at areas where the first sensing lines and the second sensing lines cross each other; and a read-out unit that receives output signals of the respective first sensing lines and second sensing lines, reading at least one sensing position, and outputting one of the at least one read sensing positions as a touch position, wherein if the number of sensing positions of the current frame is equal to or greater than two, the read-out unit compares the at least two sensing positions of the current frame with a touch position of the previous frame, and outputs the sensing position that is closest to the touch position of the previous frame as a touch position of the current frame. | 01-28-2010 |
20110224945 | METHOD OF PERFORMING ETCH PROXIMITY CORRECTION, METHOD OF FORMING PHOTOMASK LAYOUT USING THE METHOD, COMPUTER-READABLE RECORDING MEDIUM STORING PROGRAMMED INSTRUCTIONS FOR EXECUTING THE METHOD, AND MASK IMAGING SYSTEM - A method of performing etch proximity correction, taking into account an orientation-dependent component, includes providing a layout, selecting a target point on an edge of the layout, defining a proximity range from the target point, defining a probability function including a distance-dependent component, an orientation-dependent component, or both a distance-dependent component and an orientation-dependent component with respect to the proximity range, and calculating a surface integral of the probability function over the proximity range. | 09-15-2011 |
20120005635 | METHOD OF FORMING PHOTOMASK, COMPUTER-READABLE RECORDING MEDIUM STORING PROGRAMMED INSTRUCTIONS FOR EXECUTING THE METHOD, AND MASK IMAGING SYSTEM - A method of forming a photomask includes providing a layout of design patterns, setting an optical proximity correction (OPC) with respect to the layout of design patterns, and forming a layout of correction patterns with respect to the layout of design patterns by using the set OPC. The method also includes collecting verification data about the layout of correction patterns by using a layout of contour patterns based on the layout of correction patterns, and verifying whether the layout of design patterns and the layout of correction patterns are substantially identical to each other by using the verification data. | 01-05-2012 |
Patent application number | Description | Published |
20130006257 | BONE CEMENT INJECTION DEVICE - A bone cement injection device whereby bone cement is inserted through the skin and into bone, and can easily be separated during outflow of the bone cement into the blood vessels and spinal canal and curing. An outer insertion member has an outer needle tube having one end that is sharpened to be inserted through the skin and into bone and a partially closed part where the cross-sectional area of the internal space is reduced. A main hand grip is integrally formed on the other end of the outer needle tube and has a fastening part able to be fastened to a bone cement supply. An inner insertion member includes an inner needle rod for insertion into the other end part of the outer needle tube which opens through the main hand grip, and an auxiliary hand grip which is integrally formed on the inner needle rod. | 01-03-2013 |
20130067571 | METHOD AND SYSTEM FOR MANAGING SUSPICIOUS DEVICES ON NETWORK - A method and system for managing suspicious devices on a network. The method includes, setting based on a manager's input or selection a suspicious group corresponding to each of at least one suspicious management item for managing a plurality of devices on a network via a user interface; accessing the devices and reading information corresponding to the suspicious management item; determining whether each device is a suspicious device based on the information corresponding to the suspicious management item, and registering the device in the suspicious group if the device is determined as a suspicious device; checking whether an error of the device comprised in the suspicious group is resolved; and eliminating the device from the suspicious group if the error of the device is resolved. | 03-14-2013 |
20140123297 | TERMINAL APPARATUS WITH DRM DECODING FUNCTION AND DRM DECODING METHOD IN TERMINAL APPARATUS - Provided is a terminal apparatus with a DRM decoding function and a DRM decoding method in a terminal apparatus. The terminal apparatus with a DRM decoding function comprises a native unit which is provided with a local file memory for storing DRM media content data and an application program for driving a media device player using an operating system; and a DRM decoding unit which reads the DRM media content data from the local file memory using a URL path for web server, when it is required from the application program to reproduce the DRM media content data, and decodes the read DRM media content data, and provides the decoded DRM media content data to the media device player. Therefore, it is possible to reproduce the DRM media content data in the terminal apparatus without the exclusive DRM decoding module. | 05-01-2014 |
20140284171 | MEDIA CASE AND BANKING MACHINE - The present invention relates to a medium storage box. The medium storage box according to one aspect comprises: a medium depositing and withdrawing unit through which medium is deposited or withdrawn; a temporary medium stacker for temporarily stacking the medium deposited through the medium depositing and withdrawing unit; a medium storage unit for storing medium for withdrawal; a printing apparatus for printing one of the deposited medium and the medium for withdrawal; and a reversal unit for reversing the deposited medium when it is necessary to reverse the deposited medium. | 09-25-2014 |
20150092233 | SYSTEM AND METHOD FOR PROVIDING CLOUD PRINTING SERVICE - Provided is an image forming system operable to provide a cloud printing service, the image forming system comprising: a transmitting device operable to transmit content by designating a target phone number; a cloud printing server operable to receive the target phone number and the content from the transmitting device; a receiving device assigned with the target phone number and operable to receive an upload notification of the content with respect to the target phone number from the cloud printing server; and an image forming device operable to print the content by receiving the content from the cloud printing server, wherein the cloud printing server transmits the content to the image forming device registered in the target phone number when the cloud printing service is requested for the content to the target phone number. | 04-02-2015 |