Sohn, Daejeon-City
Hyonkee Sohn, Daejeon-City KR
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20100072672 | UV NANOIMPRINT LITHOGRAPHY PROCESS AND APPARATUS - A UV nanoimprint lithography process and its apparatus that are able to repeatedly fabricates nanostructures on a substrate (wafer, UV-transparent plate) by using a stamp that is as large as or smaller than the substrate in size are provided. The apparatus includes a substrate chuck for mounting the substrate; a stamp made of UV-transparent materials and having more than two element stamps, wherein nanostructures are formed on the surface of each element stamp; a stamp chuck for mounting the stamp; a UV lamp unit for providing UV light to cure resist applied between the element stamps and the substrate; a moving unit for moving the substrate chuck or the stamp chuck to press the resist with the element stamps and substrate; and a pressure supply unit for applying pressurized gas to some selected regions of the substrate to help complete some incompletely filled element stamps. | 03-25-2010 |
Jong Joo Sohn, Daejeon-City KR
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20120170702 | SYSTEM OF CONTROLLING STEAM GENERATOR LEVEL DURING MAIN FEED-WATER CONTROL VALVE TRANSFER FOR NUCLEAR POWER PLANT - A system and a method of transforming a gain and an integral time constant of a proportional-integral (PI) controller according to a timer lapse time to relieve an excessive phenomenon of a steam generator level caused by rapid changes in open degrees of a downcomer feed-water valve and an economizer feed-water valve when reactor power transfers between low and high power sections. Accordingly, an excessive phenomenon of a steam generator level is relieved at a transfer time when reactor power transfers between low and high power sections. Therefore, a possibility of a stop of a reactor caused by the excessive phenomenon of the steam generator level is reduced to relieve burden on an operator and improve an operation rate and economic feasibility of a nuclear power plant. | 07-05-2012 |
Jong Moo Sohn, Daejeon-City KR
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20100061353 | ULTRA WIDEBAND ETHERNET BRIDGING APPARATUS AND METHOD - Provided is an ultra wideband (UWB) Ethernet bridging apparatus and method. The UWB Ethernet bridging apparatus differentiates control frames and data frames from one another and transmits the differentiated frames to the different internal path. A processor processes the control frames, and the data frame is processed by using separate hardware so that the UWB Ethernet bridging apparatus can be miniaturized/simplified by using a small-sized embedded processor that is cheap and has low performance. | 03-11-2010 |
Joochan Sohn, Daejeon-City KR
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20100056934 | APPARATUS AND METHOD FOR MEASURING PULSE WAVE - A pulse wave measuring apparatus disposes a plurality of light emitting elements and a plurality of light receiving elements in a line, measures pulse wave signals at locations where the light emitting elements and the light receiving elements are located, when the pulse wave measuring apparatus is worn on a wrist of the person to be examined, and determines an optimal pulse wave signal among the plurality of measured pulse wave signals to measure pulse waves. An optimal pulse wave can be detected from an optimal pulse wave signal that is detected by a combination of the light emitting element and the light receiving element that are adjacent to a blood vessel of a person to be examined. | 03-04-2010 |
20100141773 | DEVICE FOR RECOGNIZING MOTION AND METHOD OF RECOGNIZING MOTION USING THE SAME - The present invention provides a device for recognizing a motion. The device for recognizing a motion includes: an input device that includes a light source and an inertial sensor; and a motion recognition mechanism that extracts the trajectory of a user's motion by detecting position change of the light source for a user's motion section that is determined in response to a sensing signal of the inertial sensor. | 06-10-2010 |
20100145171 | APPARATUS FOR MEASURING MOTION NOISE ROBUST PULSE WAVE AND METHOD THEREOF - Provided are a method of measuring the pulse wave at the back of a wrist, etc. where measurement of the pulse wave is difficult so as to prevent a user to feel inconvenience in a mobile environment and a method of detecting the pulse wave at a write portion or at the back of the wrist which has comparatively weak restraint force in a human body by recovering an original signal with comparatively minimum errors so as to be robust to motion noise according to motion of the wrist. | 06-10-2010 |
Kyung-Yeol Sohn, Daejeon-City KR
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20080287078 | Terminal and Method for Controlling Transmission Power - A terminal of a communication system includes a power amplifier, an open-loop power controller, a gain controller, a modulator, and a digital/analog converter. The power amplifier amplifies transmission power of a transmission signal. The open-loop power controller measures a received signal strength to control the transmission power, and increases a gain of the power amplifier according to the received signal strength. The gain controller sets a power concentration gain and applies the power concentration gain to the transmission signal when the gain of the power amplifier is maximized. The modulator modulates the transmission signal. The digital/analog converter converts an input signal to an analog signal. The gain controller applies the power concentration gain to the trans mission signal modulated by the modulator, and transmits the power concentration gain to the digital/analog converter. | 11-20-2008 |
Seon Gyoung Sohn, Daejeon-City KR
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20090094699 | APPARATUS AND METHOD OF DETECTING NETWORK ATTACK SITUATION - Provided is an apparatus for detecting a network attack situation. The apparatus includes an alarm receiver receiving a plurality of alarms raised in a network to which the alarm receiver is connected, converting the alarms into predetermined alarm data, and outputting the alarm data; an alarm processor analyzing an attack situation in the network based on attributes of the alarm data and a number of times that the alarm data is generated; a memory storing basic data needed to analyze the state of the network and providing the basic data to the alarm processor; and an interface transmitting the result of the analysis by the alarm processor to an external device, receiving a predetermined critical value from the external device, which is a basis for determining the occurrence of the attack situation, and outputting the critical value to the alarm processor such that the alarm processor can store the critical value in the memory. Equal numbers of hash engines and detection engines for processing the alarms in the network to the number of data groups classified as network attack situations are formed in a line. Therefore, a network attack situation can be detected in real time based on a great number of alarms indicating intrusion detection. | 04-09-2009 |
Sungwon Sohn, Daejeon-City KR
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20100135669 | VISIBLE LIGHT COMMUNICATION APPARATUS AND VISIBLE LIGHT COMMUNCIATION METHOD - The visible light communication apparatus includes: a luminance signal generator that calculates a duty cycle of an illumination driving signal corresponding to input luminance request information and generates clock frequency information on luminance signals based on the calculated duty cycle; a transmission data generator that generates transmission data; an illumination driver that generates and outputs an illumination driving signal in a pulse waveform based on the clock frequency information of the luminance signals and the transmission data and controls a pulse position of a turn on section for each bit unit time in the waveform of the illumination driving signal based on the transmission data; and an illumination that is operated according to the illumination driving signal from the illumination driver. | 06-03-2010 |
20100139750 | FLEXIBLE ENERGY CONVERSION DEVICE AND METHOD OF MANUFACTURING THE SAME - Disclosed is a flexible energy conversion device, comprising a first flexible substrate, a transparent electrode disposed on the first flexible substrate, a first nanostructure disposed on the transparent electrode and comprising a transition metal oxide or semi-metal oxide, a second nanostructure disposed on the first nanostructure, a second flexible substrate disposed on the second nanostructure, and a sealing layer for sealing the first flexible substrate an the second flexible substrate. A method of manufacturing the flexible energy conversion device is also provided. | 06-10-2010 |
Sung Won Sohn, Daejeon-City KR
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20090094699 | APPARATUS AND METHOD OF DETECTING NETWORK ATTACK SITUATION - Provided is an apparatus for detecting a network attack situation. The apparatus includes an alarm receiver receiving a plurality of alarms raised in a network to which the alarm receiver is connected, converting the alarms into predetermined alarm data, and outputting the alarm data; an alarm processor analyzing an attack situation in the network based on attributes of the alarm data and a number of times that the alarm data is generated; a memory storing basic data needed to analyze the state of the network and providing the basic data to the alarm processor; and an interface transmitting the result of the analysis by the alarm processor to an external device, receiving a predetermined critical value from the external device, which is a basis for determining the occurrence of the attack situation, and outputting the critical value to the alarm processor such that the alarm processor can store the critical value in the memory. Equal numbers of hash engines and detection engines for processing the alarms in the network to the number of data groups classified as network attack situations are formed in a line. Therefore, a network attack situation can be detected in real time based on a great number of alarms indicating intrusion detection. | 04-09-2009 |