Park, Daejeon-City
Bong Je Park, Daejeon-City JP
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20090285246 | MULTI-RESONANT OPTICAL FIBER LASER SYSTEM - Provided is a multi-resonant optical fiber laser system including a multi-resonator having an optical fiber containing at least one rare-earth element and an optical fiber inducing the stimulated Raman effect. The multi-resonant optical fiber laser system includes a pump light source irradiating pump light, a first resonator, which includes a first gain medium optical fiber containing at least one rare-earth element and first and second reflectors disposed to face each other across the first gain medium optical fiber and irradiates first laser radiation having a first wavelength by converting the pump light using the first gain medium optical fiber, a second resonator, which includes a second gain medium optical fiber inducing the stimulated Raman effect and third and fourth reflectors disposed to face each other across the second gain medium optical fiber and irradiates second laser radiation having a second wavelength by converting the first laser radiation using the second gain medium optical fiber. The multi-resonant optical fiber laser system furthermore may include a third resonator, which includes a second gain medium optical fiber inducing the stimulated Raman effect and fifth and sixth reflectors disposed to face each other across the second gain medium optical fiber and irradiates third laser radiation having a third wavelength by converting the second laser radiation using the second gain medium optical fiber. | 11-19-2009 |
Bong Je Park, Daejeon-City KR
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20080219298 | FIBER LASER SYSTEM USING FIBER HAVING DYSPROSIUM - Provided is a fiber laser system including fiber containing dysprosium. The fiber laser system uses 1.7-μμm pump light. A resonator of the fiber laser system includes a dichroic mirror, a partial reflection mirror, and/or an FBG. Therefore, the fiber laser system can provide 3-μm laser light and have high light pumping efficiency and high output power. The fiber laser system includes: fiber including dysprosium, a pump light source disposed at a side of the fiber and emitting pump light having a wavelength exciting electrons of the dysprosium from a ground energy level | 09-11-2008 |
20090046353 | GAIN-CLAMPED OPTICAL AMPLIFYING APPARATUS USING FIBER RAMAN AMPLIFIER HAVING RAMAN CAVITY - Provided is a gain-clamped (GC) optical amplifier using a fiber Raman amplifier (FRA) having a Raman cavity. The FRA having a Raman cavity comprises a Raman fiber module (RFM) amplifying and outputting an input optical signal and a resonant cavity generating a Raman laser and a gain clamping laser (GC laser), wherein the resonant cavity is formed as a feedback loop between an input terminal and an output terminal of the RFM. Accordingly, a gain of an optical signal propagating along a core of RFM keeps a constant value regardless of input signal intensity by generating the GC laser for gain clamping between a wavelength band of the Raman laser and a gain band of input signals. | 02-19-2009 |
20100111118 | Light coupler and fiber laser system including the same - A light coupler emitting a high power laser with a high beam quality and a fiber laser system including the light coupler is disclosed. The light coupler includes a first optical fiber bundle comprising a plurality of first optical fibers having either a single-mode core or a few-mode core and a second optical fiber, which guides multi-mode beams and is connected to the first optical fiber bundle. The optical fiber laser system includes a light coupler having a first optical fiber bundle comprising a plurality of first optical fiber having either a single-mode core or a few-mode core and a second optical fiber, which is connected to the first optical fiber bundle, is either a single cladding optical fiber or a double cladding optical fiber, and guides multi-mode beams, and one or more gain medium optical fiber, which is connected to the light coupler and emits light. | 05-06-2010 |
Chankyu Park, 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 |
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 |
Chanwon Park, Daejeon-City KR
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20110006884 | RFID INTERROGATOR CALCULATING ADAPTIVE RETRANSMISISON WAIT TIME AND CONTROL METHOD THEREOF - As an RFID interrogator calculating an adaptive retransmission wait time and a control method thereof, the RFID interrogator includes a collision diagnosis unit that analyzes data on a received signal received during a receive time in correspondence with a transmitted signal from an RF communication unit that can transmit and receive signal to and from one or more tag, verifies whether or not a collision occurs in the received signal, and diagnoses a collision type depending on an analysis result of the data on the received signal; a situational command retransmission portion that determines whether or not the command is retransmitted on the basis of the occurrence of the collision and the collision type received from the collision diagnosis unit; and a random wait time calculation portion that calculates a random wait time for retransmitting the command. | 01-13-2011 |
20110006885 | RFID INTERROGATOR RETRANSMITTING COMMAND DEPENDING ON COLLISION SITUATION AND CONTROL METHOD THEREOF - As an RFID interrogator transmitting a command depending on a collision situation and a control method thereof, the RFID interrogator includes a collision diagnosis unit that analyzes data of a received signal received during a receive time in correspondence with a transmitted signal from an RF communication unit that can transmit and receive signal to and from one or more tag, verifies whether or not a collision occurs in the received signal, and diagnoses a collision type depending on an analysis result of the data of the received signal; and a collision resolution unit that can retransmit a command to the tag through the RF communication unit depending on the collision situation on the basis of whether or not occurrence of the collision or not and the collision type that are received from the collision diagnosis unit. | 01-13-2011 |
20110018691 | RFID INTERROGATOR HAVING COLLISION TYPE IDENTIFICATION FUNCTION AND CONTROL METHOD THEREOF - Disclosed is an RFID interrogator having a collision type identification function and a control method thereof. It verifies whether or not a collision occurs in a received signal by analyzing data of a signal received from an RF communication unit and performs a corresponding collision resolution operation by diagnosing a collision type in accordance with a collision generation means between the corresponding RFID interrogator and other interrogators or a tag. Since all types of collisions that occur between the RFID interrogator and the tag can be identified, a reason for occurrence of the collisions can be rapidly recognized to cope with the reason for the collisions. | 01-27-2011 |
20110084811 | RFID TAG FOR RFID SERVICE AND RFID SERVICE METHOD THEREOF - Disclosed are an RFID tag for an RFID service and an RFID service method thereof. The present invention includes a tag storage unit including a TID memory and a user memory; and a tag controller that inserts and stores a content name field including content name information related to an item attached with the corresponding tag in the user memory, wherein the tag controller inserts the content name information in a tag response signal according to the request of a peripheral RFID interrogator and transmits it or permits an access to the memory in which the content name field is inserted. The present invention includes and stores the content name information in the identification data stored in the RFID tag to allow a user to select only the desired tag when the interrogator simultaneously recognizes a plurality of tags and receive the desired contents through the network, making it possible to give convenience to a user and reduce time and the using fee of the network. | 04-14-2011 |
Chan-Won Park, Daejeon-City KR
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20100207736 | MOBILE RFID READER AND RFID COMMUNICATION METHOD USING SHARED SYSTEM CLOCK - The present invention relates to a mobile radio frequency identification (RFID) reader and a RFID communication method using a shared system clock. According to the present invention, clock for synchronizing the mobile RFID readers can be shared without changing hardware of a conventional RHD device. Also, since the shared clock is used, a technology for preventing a collision with the readers can be easily realized in a mobile multi-reader environment. | 08-19-2010 |
20100207737 | TDMA CONTROL METHOD USED BY RFID READER VIA MOBILE PHONE BASE STATION AND MOBILE RFID READER - A time division multiple access (TDMA) control method used by a mobile radio frequency identifier (RFID) reader through a mobile phone base station and a mobile RFID reader are provided. Each mobile RFID reader occupies a frequency channel during a time slot allocated through a mobile communication base station, thereby avoiding interference between readers. | 08-19-2010 |
Choonseo Park, Daejeon-City KR
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20100005273 | METHOD FOR SELECTING NODE IN NETWORK SYSTEM AND SYSTEM THEREOF - The present invention relates to a method for selecting a node in a network system and a system thereof. The method performs a writing operation on a majority of the nodes included in at least one cell selected by dividing a network area including a plurality of nodes existing on a large-capacity cluster into a plurality of cells and performs a reading work on the majority of the nodes included in the cells selected by selecting predetermined cells of the divided cells. The present invention minimizes the accessibility of the network by binding the adjacent nodes to form the cells and access to each cell and optimizes hierarchy for the network access by selecting the node for each cell, thereby making it possible to minimize the network access cost. | 01-07-2010 |
Dae Geun Park, Daejeon-City KR
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20100040090 | SYNCHRONIZATION METHOD FOR ALLOWING FIXED TIME DELAY AND BRIDGE EMPLOYING THE SAME - Provided are a time synchronization method allowing a fixed time delay and a bridge that is interposed between a master and a slave, according to the method. In the bridge, a predetermined time after the synchronization packet is set as an output time of the synchronization packet and the synchronization packet is output at the output time. Accordingly, it is possible to delay synchronization packets in the bridge for the same time, thereby increasing the time synchronization precision. | 02-18-2010 |
20100074383 | TIMESTAMPING METHOD AND APPARATUS FOR PRECISE NETWORK SYNCHRONIZATION - A timestamping apparatus for network synchronization includes a recovery unit and a timestamping unit. The recovery unit extracts a recovery clock operating at an operation frequency of a transmission terminal from a sync signal received from the transmission terminal. The timestamping unit measures a timestamp value of an arrival time of the sync signal by measuring a phase difference between the recovery clock and a local clock of a receiving terminal. | 03-25-2010 |
20100086091 | METHOD AND APPARATUS FOR SYNCHRONIZING TIME OF DAY OF TERMINAL IN CONVERGENT NETWORK - Provided is a method and apparatus for synchronizing a time of day (TOD) in a convergent network, wherein the TOD is received from a time server connected in the convergent network and is provided to a terminal connected in a wired or wireless network, specifically a terminal connected in a heterogeneous network, that requires TOD information. The apparatus includes a time server that provides standard TOD information, a gateway or a host personal computer (PC) that provides the standard TOD information of the time server to the terminal in a 3rd layer or lower instead of an upper layer of the open system interconnection (OSI) 7 layer model, and the terminal that adjusts a local clock according to the provided standard TOD information. According to the method and apparatus, the terminal not only maintains a very precise TOD by obtaining TOD information of the time server periodically or when required, but also obtains the TOD information without using application software for processing the TOD information. Accordingly, power consumption of the terminal is decreased. | 04-08-2010 |
Heuk Park, Daejeon-City KR
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20090116848 | OPTICAL COMMUNICATION SYSTEM AND METHOD USING MANCHESTER ENCODED SIGNAL REMODULATION - An optical communication system and method using Manchester encoded signal remodulation are provided. The optical communication system includes a transmitter generating and transmitting a Manchester encoded optical signal including a first data stream, and a receiver receiving an optical signal obtained by dividing power of the Manchester encoded optical signal into two parts and modulating one of the two parts to include a second data stream, and recovering the second data stream. In two-way communication, the optical communication system and method allow one party to generate and transmit a Manchester encoded signal (i.e., a downstream signal) to the other party and allow the other party to generate an upstream signal by modulating the optical power of the downstream signal without using a light source. | 05-07-2009 |
20090196614 | ACOUSTO-OPTIC FILTER AND OPTICAL CDMA SYSTEM USING THE SAME - Provided are an acousto-optic filter and an optical code division multiple access (CDMA) system using the acousto-optic filter. The acousto-optic filer includes: an acousto-optic mode converter (AOMC) converting an optical signal of a specific optical frequency corresponding to a frequency of an electric signal of an optical signal of a first mode having a predetermined optical frequency band; and a mode stripper (MS) stripping an optical signal of the optical signal of the first mode that has been converted to a second mode. | 08-06-2009 |
20100020796 | METHOD AND APPARATUS FOR BLOCKING FORGED MULTICAST PACKETS - Provided are a method and apparatus for blocking forged multicast packets. The apparatus includes input and output ports connected to user terminals; a forwarding process unit transferring a frame input through one of the input ports to one of the output ports connected to a user terminal having a destination address; a determination unit determining an address of a user terminal connected to one of the input ports from a source address included in the frame; a filtering database storing information on the output port connected to the user terminal having the destination address of the frame based on information received from the determination unit; a multicast gate information unit including information on multicast media access control (MAC) addresses of frames providing a monodirectional multicast service and blocking or forwarding all frames having a corresponding multicast MAC address as the destination address by checking whether the input and output ports are connected to an Internet group management protocol (IGMP) querier or not; and a port information transference unit learning the multicast MAC address of the IGMP querier connected to the apparatus, obtaining information on a port having the multicast MAC address as the destination address from the filtering database, and transferring the information to the multicast gate information unit. According to the present application, forged traffic is blocked from being multicasted and thus restricted resources of a network are prevented from being wasted. As a result, the network may be used more efficiently in an industrial field. | 01-28-2010 |
20100046513 | SYSTEM FOR AND METHOD OF PROVIDING IPTV SERVICE IN NEXT GENERATION NETWORK - A system for and a method of providing IPTV service in a next generation network are provided. The system includes a service control unit, a transmission control unit, and an L | 02-25-2010 |
Hojoon Park, Daejeon-City KR
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20100146254 | METHOD FOR BINARIZING INITIAL SCRIPT ON OPERATING SYSTEM AND OPERATING METHOD OF BINARY SCRIPT - A method for binarizing initial script on an operating system includes: calling shell script to be binarized in a secondary memory unit; generating an execution table by translating the called shell script; generating a source program by merging a previously prepared source code template with the execution table; and combining a command sub-routine with the source program and binarizing the shell script by performing compile and building operations. According to the above, it is possible to minimize a booting delay time without using a fork & exec technique by applying the binary script instead of the shell script during performing system initialization while booting. | 06-10-2010 |
20100262417 | BINARY VALUE INPUT/OUTPUT PROCESSING APPARATUS AND METHOD - The invention relates to a binary value input/output processing apparatus and method for automatically inputting binary values. A binary value that is inputted first is temporarily stored in a buffer. When a symbol indicating a binary value, such as “0x” or “0X”, is detected from the next input character string, the binary value stored in the buffer is automatically outputted to the screen, following the symbol. Then, a user selects to output, to the output device, the binary value automatically outputted to the screen or to output a new binary value to the output device, instead of the binary value. When the new binary value is outputted, the binary value stored in the buffer is deleted, and the new binary value is stored in the buffer. | 10-14-2010 |
Hyeon Park, Daejeon-City KR
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20090154395 | WIRELESS SENSOR NETWORK HAVING HIERARCHICAL STRUCTURE AND ROUTING METHOD THEREOF - A network having a hierarchical structure includes a plurality of clusters. Each of the clusters includes a plurality of nodes and a cluster head connected to the nodes in a mesh format. Each of the nodes is connected to other clusters via the cluster head. | 06-18-2009 |
20090154482 | ROUTING METHOD IN SENSOR NETWORK - Provided is a routing method capable of expanding a conventional tree routing to perform the efficient and safe key management in a sensor network environment that requires the symmetric key based key management. Each sensor node transmits a Route Reverse message to a sink node to set a reverse tree routing path. Therefore, it is possible to provide efficient and safe key management mechanism and communication environment by providing a bidirectional communication between a sink node and sensor nodes through an expanded tree routing such that a user is provided with a safe sensor network. | 06-18-2009 |
Hyeong-Sook Park, Daejeon-City KR
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20080205532 | Carrier Allocation Method In Ofdm System And Transmittting Apparatus Using The Method - The present invention relates to a method for allocating subcarriers in an orthogonal frequency division multiplex (OFDM) system, and a transmitter thereof. In the OFDM system according to an exemplary embodiment of the present invention, the subcarrier allocation is performed in the buffer ( | 08-28-2008 |
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 |
20100046662 | DIGITAL CLIPPING METHOD FOR A TRANSMITTER OF AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM - The present invention relates to a digital clipping method for reducing a high peak-to-average power ratio (PAPR) of a transmission signal in a transmitter of an orthogonal frequency division multiplexing access (OFDMA) system. In the method, a) the transmission signal to be digitally clipped is divided into real and imaginary parts, b) magnitudes of the real and imaginary part signals are divided into a plurality clipping levels, and c) the transmission signal is respectively clipped by comparing the real and imaginary part signals with the plurality of clipping levels while allowing phase errors. In c), a plurality of comparators is used to respectively compare the real and imaginary parts of the complex number transmission signal with the plurality of clipping levels. | 02-25-2010 |
Hyeon-Woo Park, Daejeon-City KR
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20100191171 | Iontophoresis device - The iontophoresis device according to the exemplary embodiment of the present invention may concentrate care skin to where liver spots and freckles exist, and may be compact, portable, and convenient. An iontophoresis device according to an exemplary embodiment of the present invention may include: a housing providing an inner space; a battery installed in the housing for supplying power; a control circuit for controlling a current output from the battery; a first contact portion electrically connected with the battery and contacting the skin; a second contact portion electrically connected with the battery and disposed to the housing; and an operation portion for turning the power on and off. | 07-29-2010 |
Hyoung-Kook Park, Daejeon-City KR
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20090275527 | SKIN AGING TREATMENT COMPRISING PAEONIFLORIN - The present invention relates to a skin aging treatment comprising paeoniflorin as an active ingredient. Since paeoniflorin is effective in significantly inhibiting and improving intrinsic skin aging, significantly inhibiting and improving DNA impairment and skin wrinkling caused by UV and improving existing wrinkles, a cosmetic composition and a pharmaceutical composition comprising paeoniflorin may become a very useful skin aging treatments. | 11-05-2009 |
Hyung-Il Park, Daejeon-City KR
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20100172394 | METHOD OF AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL AT VARIABLE DATA RATE IN HUMAN BODY COMMUNICATIONS - Provided are a method and apparatus for transmitting and receiving a signal at a variable data rate in human body communications. The apparatus includes a header generator, a data generator, a spreader, and a multiplexer. The header generator generates header information including a data rate. The data generator generates transmission data by repeating each data bit to be transmitted 0 to several times according to the data rate. The spreader spreads the transmission data using a spreading code in a desired frequency band. The multiplexer multiplexes the header information and the spread data. | 07-08-2010 |
20120128036 | RECEIVER AND METHOD FOR RECEIVING DATA IN HUMAN BODY COMMUNICATION SYSTEM USING MULTIPLE RECEIVERS - There are provided a receiver in human body communication system using multiple receivers capable of reducing an error rate of receiver signals by applying a space diversity acquisition-related SIMO technology to a plurality of received data using multiple receivers or receiver electrodes in a human body communication system using a human body as a medium, and of stably transmitting the data for the interference of signals generated by other users or from different electronic devices, and a method for receiving data in a human body communication system. The receiver and the method for receiving data in a human body communication system may be useful to stably transmit/receive data without any reduction of its transmission rate by reducing the distortion in channels and the signal noise which are caused in the use of one receiver. | 05-24-2012 |
Hyun-Seo Park, Daejeon-City KR
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20090313357 | METHOD FOR ESTABLISHING CONNECTION BETWEEN USER-NETWORK OF OTHER TECHNOLOGY AND DOMAIN NAME SYSTEM PROXY SERVER FOR CONTROLLING THE SAME - The present invention relates to a method for establishing a connection between heterogeneous user-networks and a domain name system proxy server for controlling the same. The present invention has features of providing a method for supporting communication between user-computers included in Internet-compatible heterogeneous networks through a gateway based on an Internet public network and a domain name system proxy server for controlling the method. According to the present invention, supporting mutual communication between various networks based on one network can be expected. | 12-17-2009 |
20100284329 | LOCAL MOBILITY MANAGEMENT APPARATUS FOR TOTAL MOBILITY MANAGEMENT, AND TOTAL MANAGEMENT METHOD AND SYSTEM - A local mobility management apparatus for total mobility management, and a total mobility management method and system are provided. A local domain mobility registration request message on a terminal is received from a mobile access gateway that receives a network attach message including information on a home agent from the terminal moving from a first local domain to a second local domain, a location of the terminal in an area managed by the mobile access gateway is registered, and a global domain mobility registration request message for reporting registration of the location to the home agent is transmitted. Accordingly, it is possible to remove a side effect generated in a case where a transmission order of a local domain mobility registration request message and a global domain mobility registration request message is disordered and provide an efficient mobility management. | 11-11-2010 |
Hyun Seol Park, Daejeon-City KR
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20100018173 | Modularized Hybrid Dust Collector - There is provided a modularized hybrid dust collector for treating dust generated in various industrial processes. The box-shaped hybrid dust collector includes a first box-shaped dust collecting unit or a first cylindrical dust collecting unit, to which the inertial impaction and the principle of collecting dust using the centrifugal force are applied, and a second box-shaped dust collecting unit implemented by a dust collecting filter such that a problem of employing a cleaner and a limit of capacity, of a conventional cylindrical dust collector, can be overcome, and a high capacity modularized hybrid dust collector in which the box-shaped hybrid dust collector as a basic module and a plurality of dust collector modules are combined. | 01-28-2010 |
In-Seong Park, Daejeon-City KR
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20100003999 | MOBILE COMMUNICATION SYSTEM HAVING RADIO ACCESS NETWORK AND METHOD CONTROLLING CALL PROCESSING LOAD THEREOF - A mobile communication system structured in a radio access network having a base station, a control station, and a switch network for matching a mobile station and a core network, the control station comprising a traffic signal process; a control signal processor; a call process load controller; and a call processor, wherein the call process load controller refers to information on call process volume included in a call process volume request message sent from the call processor and the traffic signal processor, selects the corresponding call processor and traffic signal processor according to weight estimated based on software and hardware performance, and sends the call control service request message containing information on the selected traffic signal processor to the selected call processor. | 01-07-2010 |
Jae-Joon Park, Daejeon-City KR
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20080214218 | Method for Maximal Ratio Combining of Spatially Filtered Signals and Apparatus Therefor - The present invention relates to a maximum ratio combining method of spatial-filtered received signals and an apparatus using the same. For this purpose the present invention provides a method for receiving signals by using a plurality of antennas that form a linear array antenna, multiplying a plurality of weight vectors by the received signals, summing the multiplication results for each weight vector, and combining the summing results by using maximum ratio combining. According to the present invention, signals are dividedly received by applying spatial filtering for a receiving direction of each signal and performance can be improved by combining the received signals by using maximum ratio combining. In addition, performance of an MRC-rake and a beam forming gain can be simultaneously acquired according to the present invention. | 09-04-2008 |
Jaewoo Park, Daejeon-City KR
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20100054251 | METHOD OF PROCESSING PACKET FOR IMPROVING PERFORMANCE OF ETHERNET SWITCH - Provided is a method of processing a packet for improving performance of an Ethernet switch. According to the present invention, a routine of searching a virtual local area network (VLAN) table by a decapsulation microblock and a bridge microblock may be performed by a core component when a core component generates tables and thus the number of memory accesses may be reduced. Also, VLAN port state information of an input port and VLAN port tagging information of an output port may be stored in metadata and may be transmitted to a next microblock. Accordingly, a duplicate memory access routine of the bridge microblock and an encapsulation microblock may be removed and thus an access time delay may be reduced, thereby improving performance of an Ethernet switch. | 03-04-2010 |
Ji-Man Park, Daejeon-City KR
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20100289625 | RFID TAG APPARATUS AND AUTHENTICATION METHOD THEREOF - Provided is a radio frequency identifier (RFID) tag apparatus and an authentication method thereof. The RFID tag apparatus includes a device, a device recognizing unit, an RF processor, and a controller. The device receives a first signal and outputs a second signal in response to the first signal. The device recognizing unit outputs the first signal to the device in response to control signal and receives the second signal to output n-bit data, where n is an integer greater than 1. The RF processor receives an RF signal and extracts information from the RF signal. The controller outputs the control signal to the device recognizing unit in response to the information and processes the n-bit data in response to the information. | 11-18-2010 |
Jin-A Park, Daejeon-City KR
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20100226459 | Apparatus and Method for I/Q Modulation - An apparatus and method for I/Q modulation are provided. According to the apparatus and method, the symbol error probability performance of a conventional I/Q modulation method can be improved by a maximum of 3dB, and when the same symbol error rate (SER) as that of the conventional method is obtained, the power consumption can be reduced to half that required by the conventional method. The apparatus includes: an oscillator generating a sine wave signal; an IQ sine wave signal generation unit adjusting the phase of the sine wave signal based on I channel data and Q channel data, thereby generating an I channel sine wave signal and a Q channel sine wave signal such that a signal obtained by mixing a first signal and a second signal satisfies the condition that the mixed signal has a phase on a signal constellation diagram corresponding to the I and Q channel data, in which the first signal is obtained by applying the I channel data to the I channel sine wave signal and the second signal obtained by applying the Q channel data to the Q channel sine wave signal; and a transmission signal generation unit generating a transmission signal corresponding to the I and Q channel data, by respectively applying the I channel data and the Q channel data to the I channel sine wave signal and the Q channel sine wave signal. | 09-09-2010 |
Ji-Soo Park, Daejeon-City KR
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20100003999 | MOBILE COMMUNICATION SYSTEM HAVING RADIO ACCESS NETWORK AND METHOD CONTROLLING CALL PROCESSING LOAD THEREOF - A mobile communication system structured in a radio access network having a base station, a control station, and a switch network for matching a mobile station and a core network, the control station comprising a traffic signal process; a control signal processor; a call process load controller; and a call processor, wherein the call process load controller refers to information on call process volume included in a call process volume request message sent from the call processor and the traffic signal processor, selects the corresponding call processor and traffic signal processor according to weight estimated based on software and hardware performance, and sends the call control service request message containing information on the selected traffic signal processor to the selected call processor. | 01-07-2010 |
Jong-Cheol Park, Daejeon-City KR
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20100117037 | Pressure sensitive adhesive composition for electro-magnetic shielding film and electro-magnetic shielding filter using the same - The present invention relates to an adhesive composition for an electro-magnetic shielding film and an electro-magnetic shielding filter using the same, and more particularly to an adhesive composition for an electromagnetic shielding film comprising: a) an acrylic copolymer of i) (meth)acrylate ester monomers having C | 05-13-2010 |
Jong Hyeok Park, Daejeon-City KR
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20090084434 | NANOCOMPOSITE AND METHOD OF FABRICATING THE SAME AND DYE-SENSITIZED SOLAR CELL USING THE NANOCOMPOSITE - Provided is a nanocomposite. The nanocomposite includes a plurality of nanotubes arranged perpendicular to a substrate and a plurality of nanoparticles dispersed within each of the plurality of nanotubes or between adjacent ones of the plurality of nanotubes. The nanotube and the nanoparticle are formed of titanium dioxide (TiO | 04-02-2009 |
20090126784 | DYE-SENSITIZED SOLAR CELL USING CONDUCTIVE FIBER ELECTRODE - Provided is a dye-sensitized solar cell including a flexible electrode. The dye-sensitized solar cell includes: first and second electrodes facing each other, and an electrolyte layer interposed between the first and second electrodes, wherein the first electrode comprises a structure formed of conductive fibers, a nano-particle semiconductor oxide layer formed on a surface of the structure of the conductive fibers, and dye molecules adsorbed in the nano-particle semiconductor oxide layer. | 05-21-2009 |
20090211630 | DYE-SENSITIZED SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - Provided are a dye-sensitized solar cell and a method of manufacturing the same. The dye-sensitized solar cell includes a semiconductor electrode and a counter electrode that face each other, and an electrolytic solution interposed therebetween, wherein the semiconductor electrode includes: a conductive substrate; an oxide semiconductor-conductor structure formed on the conductive substrate; and dye molecules layer adsorbed onto the surface of the oxide semiconductor. A dye-sensitized solar cell manufactured using the method can effectively prevent electrons transferred to the conductor and an electrolyte from recombining, thus having maximal photoelectron conversion efficiency. | 08-27-2009 |
Jonghyun Park, Daejeon-City KR
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20100132045 | APPARATUS AND METHOD FOR RIGHT MANAGEMENT OF DIGITAL CONTENTS - Disclosed is an apparatus for right management of digital contents includes: a digital right manager that creates a usage right of digital contents on the basis of received right information; and a contents manager that provides the digital contents in accordance with the created usage right, wherein the contents manager includes a contents packing unit that receives the usage right created from the digital right manager, and extracts and packages components of the digital contents in accordance with the usage right, and a contents providing unit that receives packaged digital contents created from the contents packaging unit and provides the digital contents to a contents using device. | 05-27-2010 |
20100142802 | APPARATUS FOR CALCULATING 3D SPATIAL COORDINATES OF DIGITAL IMAGES AND METHOD THEREOF - Provided is a digital photographing apparatus including: an image acquiring unit that acquires images by photographing a subject; a sensor information acquiring unit that acquires positional information, directional information, and posture information of the digital photographing apparatus at the time of photographing a subject; a device information acquiring unit that acquires device information of the digital photographing apparatus at the time of photographing a subject; and a spatial coordinates calculator that calculates 3D spatial coordinates for photographed images using the acquired positional information, directional information, posture information, and device information. | 06-10-2010 |
Jong-Hyurk Park, Daejeon-City KR
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20100117058 | MULTI-STRUCTURE NANOWIRE AND METHOD OF MANUFACTURING THE SAME - Provided is a multi-structure nanowire in which silicon nanowires are formed at both ends of a compound semi-conductor nanorod, and a method of manufacturing the multi-structure nanowire. The method includes providing a compound semiconductor nanorod; forming metal catalyst tips on both ends of the compound semiconductor nanorod; and growing silicon nanowires on both ends of the compound semiconductor nanorod where the metal catalyst tips are formed. | 05-13-2010 |
Jong-Il Park, Daejeon-City KR
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20100021480 | BIOACTIVE SUBSTANCE-BLOOD PROTEIN CONJUGATE AND STABILIZATION OF A BIOACTIVE SUBSTANCE USING THE SAME - This invention relates to a technology of modifying low-molecular-weight bioactive substances with short in vivo half-life and low stability in order to achieve a stable and efficient in vivo delivery thereof. More specifically, the present invention relates to a stable bioactive substance-blood protein conjugate, wherein a low-molecular-weight bioactive substance is ex vivo conjugated with a specific functional group on a blood protein through a reactive group, the low-molecular-weight bioactive substance is available as a drug for treatment and prevention in mammals including human and selected from the group consisting of a natural substance; and a method of a stable and efficient in vivo delivery of the low-molecular-weight bioactive substance based on the use of the bioactive substance-blood protein conjugate. | 01-28-2010 |
Jong-Sung Park, Daejeon-City KR
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20100311853 | MICROCELLULAR FOAM OF THERMOPLASTIC RESIN PREPARED WITH DIE HAVING IMPROVED COOLING PROPERTY AND METHOD FOR PREPARING THE SAME - The present invention relates to a microcellular foam of a thermoplastic resin and a method for preparing the same, and more particularly to a microcellular foam comprising a skin layer having a porosity of below 5% and a core layer having a porosity of at least 5%, wherein the thickness of the skin layer accounts for 5 to 50% of the entire foam, and a method for preparing the same. The microcellular foam of the present invention is advantageous in that it has a thicker skin layer and smaller and uniform micropores in the core layer, compared with conventional microcellular foams, while having mechanical properties comparable to those of conventional non-foamed sheets. | 12-09-2010 |
Jung Soo Park, Daejeon-City KR
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20090252114 | Method and System for Supporting Seamless Handover of Mobile Node Using Mobile Stream Control Transmission Protocol - A method and system for supporting a seamless handover of a mobile node using a mobile Stream Control Transmission Protocol (mSCTP) to support the mobility of the mobile node are provided. In the method and system, a change in data link layer information, which occurs when the mobile node moves into a new sub-network, is detected and changed data link layer information is transmitted to a network layer. A new Internet protocol (IP) address for the new sub-network is acquired in the network layer using the changed data link layer information. The new IP address is transmitted to a transport layer and dynamic address setting is performed in the transport layer using the mSCTP. | 10-08-2009 |
Junseok Park, Daejeon-City KR
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20110111704 | WIRELESS TERMINAL AND CONTROL METHOD FOR DIFFUSING SMELL THEREOF - The present invention relates to a wireless terminal that includes a wireless communication unit that transmits/receives wireless signals with a smell diffusion apparatus, a user interface that receives control variable values for controlling the driving of the smell diffusion apparatus, and a controller that estimates the distance between the smell diffusion apparatus and the wireless terminal using the wireless signals transmitted/received by the wireless communication unit and adjusts the control variable values input based on the estimated distance to allow smell diffusion control signals to be output, and a control method for diffusing smell thereof. With the present invention, the control variable values of the smell diffusion apparatus, such as the smell diffusion time point, smell diffusion intensity, and smell diffusion duration time, etc., are adjusted according to the distance between the smell diffusion apparatus and the wireless terminal, making it possible to provide more improved smell diffusion services depending on the user. | 05-12-2011 |
Juyoung Park, Daejeon-City KR
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20090080344 | Method for Configuring 1:N Overlay Multicast Network of Multicast Agent in Wireless LAN Environment and Multicast Agent Therefor - A method of configuring a multicast agent and a 1:N overlay multicast network considering a wireless local area network (WLAN) environment of the same are provided. The method includes: a session manger generating a first database with entries of multicast agents subscribing to a session and multicast agents that have applied for subscription to a session but have not been confirmed for normal operation; a multicast agent generating a second database with entries of a path from the root of a tree to which the multicast agent belongs, a hierarchical relation in the tree, the list of probed neighboring nodes, and a list of not-probed neighboring nodes; the multicast agent subscribing to the overlay network; obtaining information on neighboring multicast agents; setting a multicast agent which is determined to be optimal based on the obtained information, as a parent node; and if a multicast agent providing a tree improved from the current tree is found, changing the parent node. According to the method, multicast communication can be easily introduced into a wireless environment without particular modification of existing Internet router equipment. | 03-26-2009 |
Kang Ho Park, Daejeon-City KR
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20080213567 | HETERO-JUNCTION MEMBRANE AND METHOD OF PRODUCING THE SAME - Provided is a hetero-junction membrane including: a first layer comprising first nanoparticles of a first conductive type; and a second layer comprising second nanoparticles of a second conductive type, wherein the first layer and the second layer are joined to each other. The hetero-junction membrane has advantages in that actuating efficiency is much higher, the direction of actuating can be predicted and the manufacturing processes are simple compared to conventional bucky paper formed of a single layer. | 09-04-2008 |
20090121585 | THIN FILM TYPE INTEGRATED ENERGY HARVEST-STORAGE DEVICE - Provided is thin film type energy generation-storage device in which an energy generation device generating energy using a piezoelectric material and an energy storage device storing the generated energy are formed in a thin film type one unit. | 05-14-2009 |
20090218648 | NEAR-FIELD OPTICAL PROBE BASED ON SOI SUBSTRATE AND FABRICATION METHOD THEREOF - Provided is near-field optical probe including: a cantilever arm support portion that is formed of a lower silicon layer of a silicon-on-insulator (SOI) substrate, the cantilever arm support portion having a through hole formed therein at a side of the lower silicon layer; and a cantilever arm forming of a junction oxidation layer pattern and an upper silicon layer pattern on the SOI substrate that are supported on an upper surface of the lower silicon layer and each have a smaller hole than the through hole, a silicon oxidation layer pattern having a tip including an aperture at a vertical end, corresponding with the hole on the upper silicon layer pattern, and an optical transmission prevention layer that is formed on the silicon oxidation layer pattern and does not cover the aperture. | 09-03-2009 |
Ki Hwa Park, Daejeon-City KR
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20100089179 | AUTOMATIC SEQUENTIAL SAMPLER FOR ROOF-TOP RUNOFF OF RAINWATER - There is provided an automatic sequential sampler for roof-top runoff of rainwater, which comprises: a sensing part, a controlling part and a sampling part, and more particularly, which takes samples of rainwater, at regular intervals, by sensing whether it rains and controlling the rotation and stop of a sample bottle shelf in the sampling part, using a timer and a counter. | 04-15-2010 |
Kwang Ho Park, Daejeon-City KR
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20090023946 | SYNTHETIC METHOD OF GLYCOL DIESTERS FROM REACTION OF GLYCOL MONOESTERS AND LINEAR ALIPHATIC CARBOXYLIC ACIDS - A method of synthesizing glycol diester by reacting a linear aliphatic carboxylic acid and a glycol monoester in the presence of a Lewis acid type catalyst is provided. In the method, after introducing the glycol monoester, the linear aliphatic carboxylic acid and the Lewis acid type catalyst into a reactor, the reaction occurs to produce reaction products and water in the reactor; an excess of the linear aliphatic carboxylic acid forms an azeotrope with water during the reaction to be sent to a condenser through a distillation column; the linear aliphatic carboxylic acid and water passed through the condenser are divided into an organic layer and an aqueous layer in an oil water separator; and the organic layer is returned to the distillation column through a material cycling line and water in the aqueous layer is removed through a water removal line. By utilizing reactive distillation technique, water produced during the reaction is rapidly removed, and thus the reaction time can be significantly reduced and the yield of the glycol diester can be maximized. | 01-22-2009 |
Kwangroh Park, Daejeon-City KR
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20090313206 | APPARATUS AND METHOD FOR PARSING OF EXTENSIBLE MEDIA - The present invention relates to an apparatus and a method for parsing of extensible media. In the present invention, neo-data including additional media are extracted from meta data of the extensible media by analyzing the extensible media, and a neo-data track is extracted from the extensible media and transmitted to a means for controlling the extensible media. According to the present invention, it is advantageous to maximize an extensible media service effect by providing a method for more effectively parsing extensible media having a new structure that can add device control for a realistic service and synchronization information to general media. | 12-17-2009 |
20100109909 | APPARATUS AND METHOD FOR INFORMING OF CHILDREN-PROTECTION - There are disclosed an apparatus and a method for informing of children-protection that provides a position of a child and surrounding environment information to parents of the child. The apparatus for informing of children-protection includes: a communication unit that receives user information transmitted from a user terminal; an informing information storing unit that stores terminal information corresponding to each user information; and an informing control unit that detects the terminal information corresponding to the user information received by the communication unit from the informing information storing unit and transmits position information of the user terminal to a terminal corresponding to the terminal information detected through the communication unit. | 05-06-2010 |
Mahn Yong Park, Daejeon-City KR
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20100014545 | ATHERMAL EXTERNAL CAVITY LASER - Provided is an athermal external cavity laser (ECL), whose output optical power and output wavelength can be kept regular irrespective of temperature changes without using additional temperature controlling components. The ECL comprises: a semiconductor amplifier; an optical fiber comprising a core in which a Bragg grating is formed and a cladding surrounding the core; and a thermosetting polymer that fixes the optical fiber to a ferrule and has a negative thermooptical coefficient, wherein the thickness of the cladding surrounding the core in which the Bragg grating is formed is smaller than the portion of the cladding surrounding the portion of the core where the Bragg grating is not formed, and the thermosetting polymer the negative thermooptical coefficient surrounds the cladding. The ECL does not need additional temperature controlling components and thus can be manufactured compact and at low cost, and thus can be used as a light source of a dense wavelength division multiplexing (DWDM) system in designing economical WDM passive optical networks (PON). | 01-21-2010 |
Man-Su Park, Daejeon-City KR
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20080300582 | LASER SKIN PERFORATOR AND METHOD OF FORMING SKIN HOLE USING LASER - A laser skin perforator and a method of forming a skin hole using a laser that forms a plurality of micro holes in skin using the laser when treating various skin diseases such as removing a wrinkle and a scar of skin are provided. The laser skin perforator includes a main laser oscillator, an optical unit, an area display laser oscillator, a shutter unit, and a laser emission unit. Further, the method of forming a skin hole using a laser includes setting a surgical operation area, radiating an area display laser beam, setting an emission value of a main laser beam, setting the pulse number of the main laser beam, and forming a micro hole in skin by radiating the main laser beam of the set pulse number. | 12-04-2008 |
Nae-Man Park, Daejeon-City KR
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20080290360 | Silicon-Based Light Emitting Diode Using Side Reflecting Mirror - A silicon light emitting diode capable of effectively utilizing light radiated toward the lateral side of a substrate by including a side reflecting mirror is provided. The silicon-based light emitting diode includes a p-type silicon substrate having a plurality of grooves, a light emitting diode layer formed on each of the grooves of the silicon substrate, the light emitting diode layer including an active layer, an n-type doped layer, and a transparent electrode layer, and a metal electrode including a lower metal electrode formed on the bottom surface of the p-type silicon substrate and an upper metal electrode formed on the top surface of the transparent electrode layer. The lateral surface of each of the grooves is separated from the light emitting diode layer and used as a reflecting mirror The lateral surface is referred to as the side reflecting mirror. | 11-27-2008 |
20080296593 | Silicon Light Emitting Device - Provided is a highly-efficient silicon light emitting device including an improved structure by which more light of the light emitted toward the lateral side of the light emitting device is emitted toward the front side thereof than conventional light emitting devices so as to improve the brightness. The silicon light emitting device includes a substrate, a plurality of light emitting structures formed on the substrate, each of the light emitting structures comprising an active layer, and a metal electrode comprising a lower metal electrode formed below the substrate and an upper metal electrode formed on the light emitting structures. The light emitting structures have column shapes whose vertical cross-sections are inverse trapezoid. | 12-04-2008 |
20080303018 | Silicon-Based Light Emitting Diode for Enhancing Light Extraction Efficiency and Method of Fabricating the Same - Due to the indirect transition characteristic of silicon semiconductors, the light extraction efficiency of a silicon-based light emitting diode is lower than that of a compound semiconductor-based light emitting diode. For this reason, there are difficulties in practically using and commercializing silicon-based light emitting diodes developed so far. Provided is a silicon-based light emitting including: a substrate with a lower electrode layer on a lower surface thereof; a lower doped layer that is formed on an upper surface of the substrate and supplies carriers to an emitting layer; the emitting layer that is a silicon semiconductor layer including silicon quantum dots or nanodots formed on the lower doped layer and has a light-emitting characteristic; an upper doped layer that is formed on the emitting layer and supplies carriers to the emitting layer; an upper electrode layer formed on the upper doped layer; and a surface structure including a surface pattern formed on the upper electrode layer, a surface structure including an upper electrode pattern and an upper doped pattern formed by patterning the upper electrode layer and the upper doped layer, or a surface structure including the surface pattern, the upper electrode pattern, and upper doped pattern, wherein the surface structure enhances the light extraction efficiency of light emitted from the emitting layer according to geometric optics. | 12-11-2008 |
20090242913 | SILICON BASED LIGHT EMITTING DIODE - Provided is a highly efficient silicon-based light emitting diode (LED) including a Distributed Bragg Reflector (DBR), an n-type doping layer, and a p-type substrate structure. The silicon-based LED includes: a substrate having a p-type mesa substrate structure; an active layer that is formed on the substrate and has a first surface and a second surface opposite the first surface; a first reflective layer facing the first surface of the active layer; a second reflective layer that is located on either side of the p-type substrate structure and faces the second surface of the active layer; an n-type doping layer sandwiched between the active layer and the first reflective layer; a first electrode electrically connected to the n-type doping layer; and a second electrode electrically connected to the p-type substrate structure. | 10-01-2009 |
Nae-Ri Park, Daejeon-City KR
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20090067493 | METHOD AND APPARATUS FOR CONTROLLING BITRATE OF SCALABLE VIDEO STREAM - Provided is a method and apparatus for controlling a bit-rates in which an amount of generated bits is adjusted according to the complexity of each frame, and a bit-rate within a frame can be further effectively adjusted by applying different quantization parameter (QP) values to respective macro blocks. In the apparatus for controlling a bit-rate, a motion compensated temporal filtering (MCTP) operation is performed for each group of pictures (GOP) in an input scalable layer, and thereafter bits are allocated to respective frames in consideration of frame type and frame complexity. Furthermore, a QP is adaptively determined in the unit of a macro block on the basis of the allocated bits. | 03-12-2009 |
Namshik Park, Daejeon-City KR
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20100168914 | DIAGNOSIS AND MANAGEMENT SERVER FOR MULTI-KINDS ROBOTS - Provided proposes a structure of a robot management server and an internal structure of a robot that can interwork with an external server providing functions such as voice recognition, voice synthesis, image recognition, speaker recognition, gesture recognition, etc., and provide the corresponding functions as basic functions of the robot. Through the structure, the same interface, which accesses the internal structure of the robot, can be provided and the robot developer can develop applications handling multi-kinds robots and applications without being limited by the basic functions of the robot, by using the interface. In addition, malfunction and failure, which can occur during the operation of the robot, are checked by diagnosing, such that applications capable of appropriately processing the malfunction and failure can be developed. | 07-01-2010 |
No Ik Park, Daejeon-City KR
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20100157902 | METHOD AND SYSTEM OF PROVIDING MULTIMEDIA SERVICE IN IP NETWORK - Provided are a method and system of providing a multimedia service in an information provider (IP) network, wherein the method is performed by a system of providing an IP-based mobile service. The method includes: detecting whether a user, who is being provided with the multimedia service, changed from a first terminal to a second terminal; obtaining characteristic information of the second terminal; and providing the multimedia service after changing the multimedia service according to the obtained characteristic information. When only a terminal changes and an access network does not change, or when only an access network changes and a terminal does not change, a network automatically recognizes characteristics of the terminal and the access network and automatically changes media according to the recognized characteristics. Accordingly, a multimedia service without quality deterioration is received, and moreover, a service that can satisfy characteristics (capacity, size of display, etc.) of a terminal of a user and a corresponding service level agreement (SLA) of the user are provided in various terminal environments. | 06-24-2010 |
No-Soo Park, Daejeon-City KR
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20090009472 | Data Input Method and Apparatus for Pda Thereby - Disclosed herein is an invention which relates to a data input apparatus for a handheld terminal and a method thereof comprising a sliding panel including a panel of a certain shape and a plurality of input members arranged at regular intervals on a certain portion of the bottom face of the panel; and a frame having the same shape as the sliding panel, the frame including one or more sliding through-holes having a longer inner diameter than that of the sliding panel, resting on a plurality of input buttons contained in the handheld terminal or on a plurality of input points forming a screen output from a touch screen, and inputting a key value of a corresponding input point by aligning any one of the input buttons or the input points with any one of the input members, the alignment being established by inserting the sliding panel into the sliding through-hole and displacing in a sliding manner. | 01-08-2009 |
Pyong-Woon Park, Daejeon-City KR
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20080200826 | Apparatus and Method of Diagnosing Health Using Cumulative Data Pattern Analysis Via Fast Fourier Transformation of Brain Wave Data Measured From Frontal Lobe - Provided is a health diagnosis apparatus and method in which brain waves are sequentially measured from the frontal lobe of a human body that is to be diagnosed when the eyes are in an eyes-open and eyes-closed state, the measured brain waves are fast Fourier transformed to then be accumulated, and then the health conditions of the respective portions of the human body can be determined according to the patterns with respective frequencies. The health condition diagnosis method includes measuring brain waves; performing a fast-Fourier-transform on the measured brain waves; classifying the frequency-based brain wave data into opened and closed eye state brain waves to thus accumulate the classified result; finding a specific frequency and a pattern thereof which repeats from the accumulated brain wave data; correspondingly connecting the frequency and the respective portions of the human body based on the specific frequency pattern; and determining the health condition of the human body. The frequency-based health condition determination is based on clinic test results. | 08-21-2008 |
Rae-Man Park, Daejeon-City KR
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20090032836 | SEMICONDUCTOR LIGHT EMITTING DIODE THAT USES SILICON NANO DOT AND METHOD OF MANUFACTURING THE SAME - Provided is a semiconductor light emitting diode that uses a silicon nano dot and a method of manufacturing the same. The semiconductor light emitting diode includes a light emitting layer that emits light; a hole injection layer formed on the light emitting layer; an electron injection layer formed on the light emitting layer to face the hole injection layer; a metal layer that comprises a metal nano dot and is formed on the electron injection layer; and a transparent conductive electrode formed on the metal layer. Amorphous silicon nitride that includes the silicon nano dot is used as the light emitting layer. | 02-05-2009 |
20090123649 | METHOD OF MANUFACTURING SILICON NANOTUBES USING DOUGHNUT-SHAPED CATALYTIC METAL LAYER - Provided is a method of manufacturing silicon nanotubes including forming non-catalytic metal islands on a substrate; forming catalyst metal doughnuts to surround the non-catalytic metal islands; and growing silicon nanotubes on the catalyst metal doughnuts. The silicon nanotubes are efficiently grown using the catalyst metal doughnuts. | 05-14-2009 |
20090325365 | METHOD OF MANUFACTURING SILICON NANOWIRES USING SILICON NANODOT THIN FILM - Provided is a method of manufacturing silicon nanowires including: forming a silicon nanodot thin film having a plurality of silicon nanodots exposed on a substrate; and growing the silicon nanowires on the silicon nanodot thin film using the silicon nanodots as a nucleation site. The silicon nanowires can be manufactured using the silicon nanodot thin film disposed in a silicon nitride matrix, as a nucleation site instead of using catalytic metal islands, wherein the silicon nanodot thin film includes the silicon nanodots. | 12-31-2009 |
20100012919 | GAS SENSOR HAVING ZINC OXIDE NANO-STRUCTURES AND METHOD OF FABRICATING THE SAME - Provided are a gas sensor using a plurality of zinc oxide nano-structures on which metal islands are formed, and a method of fabricating the same. The gas sensor comprises zinc oxide nano-structures formed on a substrate, a plurality of metal islands coated on a surface of each zinc oxide nano-structure and separated from one another, a first electrode electrically connected to one end of each zinc oxide nano-structure through the substrate, a second electrode electrically connected to the other end of each zinc oxide nano-structure, and a current variation-measuring unit electrically connected to each of the first electrode and the second electrode so as to measure a variation in the amount of current flowing between the first electrode and the second electrode. In order to form the plurality of metal islands separated from one another on the surface of each zinc oxide nano-structure using a wet process, metal components of a metal material are coated on the surface of each zinc oxide nano-structure using the solution in which the metal material is solved. | 01-21-2010 |
20100117058 | MULTI-STRUCTURE NANOWIRE AND METHOD OF MANUFACTURING THE SAME - Provided is a multi-structure nanowire in which silicon nanowires are formed at both ends of a compound semi-conductor nanorod, and a method of manufacturing the multi-structure nanowire. The method includes providing a compound semiconductor nanorod; forming metal catalyst tips on both ends of the compound semiconductor nanorod; and growing silicon nanowires on both ends of the compound semiconductor nanorod where the metal catalyst tips are formed. | 05-13-2010 |
20110135827 | METHOD OF FABRICATING CARBON NANOTUBES UNIFORMLY COATED WITH TITANIUM DIOXIDE - Provided is CNTs on which TiO | 06-09-2011 |
Se Ho Park, Daejeon-City KR
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20090023609 | PROGRAMMABLE MASK FOR FABRICATING BIOMOLECULE ARRAY OR POLYMER ARRAY, APPARATUS FOR FABRICATING BIOMOLECULE ARRAY OR POLYMER ARRAY INCLUDING THE PROGRAMMABLE MASK, AND METHOD OF FABRICATING BIOMOLECULE ARRAY OR POLYMER ARRAY USING THE PROGRAMMABLE MASK AND PHOTOCHEMICAL SYNTHESIS APPARATUS - Provided are a programmable mask for promptly fabricating a biomolecule or polymer array having high density, an apparatus for fabricating a biomolecule or polymer array including the mask, a method of fabricating a biomolecule or polymer array using the programmable mask and a photochemical synthesis apparatus. The programmable mask for fabricating a biomolecule array or polymer array includes a first substrate including a black matrix having openings and first pixel electrodes; a second substrate including thin film transistors for switching pixel regions which correspond to the openings according to applied electric signals and second pixel electrodes connected to drain electrodes of the thin film transistors; a liquid crystal layer interposed between the first substrate and the second substrate, the liquid crystal layer including liquid crystal whose arrangement can be changed according to electric signals of the thin film transistors so as to selectively transmit light; a first polarizing plate laminated on one side of the first substrate; a second polarizing plate laminated on one side of the second substrate; and a lens array layer laminated on one side of the second polarizing plate including lenses which correspond to the pixel regions. | 01-22-2009 |
Seon-Hee Park, Daejeon-City KR
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20090112480 | METHOD AND APPARATUS FOR CLUSTERING GENE EXPRESSION PROFILES BY USING GENE ONTOLOGY - Provided are a method and apparatus for clustering gene expression profiles by using the Gene Ontology (GO). The method includes: selecting one or more GO terms from a GO tree; receiving gene expression data sets; classifying the gene expression data sets into groups according to the GO terms; firstly clustering gene expression data belonging to each of the groups based on a similarity of the gene expression data; and secondly clustering the gene expression data sets by using the result of the first clustering as a seed. | 04-30-2009 |
Seung-Keun Park, Daejeon-City KR
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20100226459 | Apparatus and Method for I/Q Modulation - An apparatus and method for I/Q modulation are provided. According to the apparatus and method, the symbol error probability performance of a conventional I/Q modulation method can be improved by a maximum of 3dB, and when the same symbol error rate (SER) as that of the conventional method is obtained, the power consumption can be reduced to half that required by the conventional method. The apparatus includes: an oscillator generating a sine wave signal; an IQ sine wave signal generation unit adjusting the phase of the sine wave signal based on I channel data and Q channel data, thereby generating an I channel sine wave signal and a Q channel sine wave signal such that a signal obtained by mixing a first signal and a second signal satisfies the condition that the mixed signal has a phase on a signal constellation diagram corresponding to the I and Q channel data, in which the first signal is obtained by applying the I channel data to the I channel sine wave signal and the second signal obtained by applying the Q channel data to the Q channel sine wave signal; and a transmission signal generation unit generating a transmission signal corresponding to the I and Q channel data, by respectively applying the I channel data and the Q channel data to the I channel sine wave signal and the Q channel sine wave signal. | 09-09-2010 |
Sun-Hee Park, Daejeon-City KR
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20100240967 | BELT WITH HEALTH MANAGEMENT FUNCTION - A belt with a health management function includes a health information extraction module extracting health related information from various biomedical signals, a buckle housing the health information extraction module, and a strap connected to an end of the buckle. The health information extraction module includes a sensor module detecting various biomedical signals, and a process/extraction unit digitally processing the detected biomedical signals and extracting the health related information from the processed digital signals. | 09-23-2010 |
Suntak Park, Daejeon-City KR
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20080226222 | OPTO-ELECTRIC BUS MODULE AND METHOD OF MANUFACTURING THE SAME - Provided are an opto-electric bus module and a method of manufacturing the opto-electric bus module. The opto-electric bus module includes an opto-electric interconnection unit where a concave-shaped micro structure is formed on a lower surface of a polymer structure and an optical bench where a convex-shaped micro structure is formed in a position corresponding to the concave-shaped micro structure, at least one second electric interconnection for electric connection with a semiconductor chip is formed, and the semiconductor chip and an opto-electric device can be mounted. Thus, automatic, efficient, high-speed, and high-integration optical communication and electric communication between multi-chips can be completed at the same time by using the opto-bus module which provides low-speed electric communication while manually maintaining solid optical coupling. | 09-18-2008 |
20100172623 | COMPOUND CONTAINING CROSSLINKABLE MOIETIES, PREPOLYMER, BLEND AND POLYMER SHEET OBTAINED THEREFROM, AND WAVEGUIDE FOR OPTICAL INTERCONNECTION - A compound containing a crosslinkable moiety, a curable prepolymer, a blend, and a polymer sheet obtained therefrom, and an optical waveguide for optical interconnection. The compound is represented by the formula below: | 07-08-2010 |
20140219625 | Compound containing crosslinkable moieties, prepolymer, blend and polymer sheet obtained therefrom, and waveguide for optical interconnection - An optical waveguide for optical interconnection including a polymer sheet comprising a crosslinked product of a prepolymer, the prepolymer prepared by condensation reaction between a first compound represented by the formula Ar—H, where Ar comprises (a) a crosslinkable moiety at one end, (b) a moiety selected from the group consisting of —O—, —S—, —COO—, —CO—, —COS—, —SO | 08-07-2014 |
Tae-Joon Park, Daejeon-City KR
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20090154485 | Apparatus and method for controlling multi-channel access - Provided is an apparatus and method for controlling multi-channel access in USN-based MAC. The multi-channel access control apparatus includes a channel scanner, a control channel preoccupier, and an available channel exchanger. The channel scanner scans at least one or more available channels among the N data channels in a Tx sensor node. The control channel preoccupier preoccupies, in the Tx sensor node, the control channel through control channel sensing and back-off and broadcasts a preamble on the control channel periodically. The available channel exchanger detects, in an Rx sensor node, the available channels available to the Tx sensor node on the basis of the received preamble, selects a channel available to the Rx sensor node among the detected available channels, and transmits information about the selected channel to the Tx sensor node. | 06-18-2009 |
20100027449 | Transmitting apparatus, transmitting method, receiving apparatus, receiving method and channel status information updating method of sensor node based on multiple channels - Provided are a transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method and a channel status information updating method of a sensor node based on multiple channels. The transmitting apparatus and method transmit a wake-up signal for switching neighbor nodes in a power-saving mode in a transmission range of the sensor node to a wake-up mode in which the neighbor nodes wait to receive a message from the sensor node through the control channel, transmit a preamble message including a list of unused available channels from among the data channels to a receiving node to which data is transmitted from among the neighbor nodes through the control channel, receive an acknowledgement message including information that indicates a channel selected from the available channels from the receiving node through the control channel, transmit a connection confirmation message for switching neighbor nodes other than the receiving node to the power-saving mode through the control channel, and transmit data to the receiving node through the selected channel. | 02-04-2010 |
20100092180 | HIGH POWER EFFICIENCY OPTICAL-WIRELESS TRANSMITTER - Provided is a high power efficiency optical-wireless transmitter capable of solving problems of low power efficiency, signal distortion due to non-linearity of output, large number of connection terminals, and non-uniformity of optical power intensities of optical sources. The high power efficiency optical wireless transmitter includes: an amplitude-to-array coder converting an amplitude of an electric signal input from a baseband modulator into optical source control signals so as to generate an optical output power corresponding to the electric signal; optical source driver groups driving optical sources based on the optical source control signals of the amplitude-to-array coder; and MMRS (modified mixed radix system) or MMRR (modified mixed radix system with Redundancy) optical source group driven by the optical source driver groups to generate various optical power intensities. | 04-15-2010 |
Wonjoo Park, Daejeon-City KR
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20100043052 | APPARATUS AND METHOD FOR SECURITY MANAGEMENT OF USER TERMINAL - The present invention relates to an apparatus and method for security management of a user terminal. The present invention generates security policies for the user terminal through an external security management server based on context information for the user terminal. At this time, the present invention receives the generated security policy information and sets internal security policies for the user terminal. The present invention can overcome a limitation of the user terminal as the security policies for the user terminal, particularly, the complex terminal is set by using various interfaces and provide systematic and supplemental security services. | 02-18-2010 |
Yang-Mi Park, Daejeon-City KR
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20090233997 | COMPOSITION FOR PROMOTING SYNTHESIS OF COLLAGEN, AND COMPOSITION FOR EXTERNAL PREPARATION FOR SKIN COMPRISING THE SAME - The present invention relates to a composition for promoting collagen synthesis and a composition for external application to skin which includes the collagen synthesis promoting composition. The collagen synthesis promoting composition includes, as an effective component, at least one selected from the group consisting of compounds represented as: wherein R is hydrogen, a methoxy group, or a 3-methyl-2-butenyl group. The composition for external application to skin includes at least one collagen synthesis promoting component selected from the group consisting of compounds represented by above. | 09-17-2009 |
Yoohyun Park, Daejeon-City KR
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20100005273 | METHOD FOR SELECTING NODE IN NETWORK SYSTEM AND SYSTEM THEREOF - The present invention relates to a method for selecting a node in a network system and a system thereof. The method performs a writing operation on a majority of the nodes included in at least one cell selected by dividing a network area including a plurality of nodes existing on a large-capacity cluster into a plurality of cells and performs a reading work on the majority of the nodes included in the cells selected by selecting predetermined cells of the divided cells. The present invention minimizes the accessibility of the network by binding the adjacent nodes to form the cells and access to each cell and optimizes hierarchy for the network access by selecting the node for each cell, thereby making it possible to minimize the network access cost. | 01-07-2010 |
Young Sam Park, Daejeon-City KR
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20080219047 | APPARATUS AND METHOD FOR WRITING DATA TO PHASE-CHANGE MEMORY BY USING POWER CALCULATION AND DATA INVERSION - Provided are an apparatus and method for writing data to a phase-change random access memory (PRAM) by using writing power calculation and data inversion functions, and more particularly, an apparatus and method for writing data which can minimize power consumption by calculating the power consumed while input original data or inverted data is written to a PRAM and storing the data consuming less power. A PRAM consumes a significant amount of power in order to store data in a memory cell since a large electric current is required to flow for a long period of time. According to the present invention, since the PRAM consumes different amounts of power when writing data with a value of 0 and data with a value of 1, the power consumed when input original data is stored and the power consumed when the input original data is inverted and stored are compared to each other, the data with a smaller power consumption is stored when the data is written to the PRAM as a word unit, and thus the power consumption of the PRAM can be reduced. | 09-11-2008 |
20080237564 | Phase-Change Memory Device Using Sb-Se Metal Alloy and Method of Fabricating the Same - Provided are a phase-change memory device using a phase-change material having a low melting point and a high crystallization speed, and a method of fabricating the same. The phase-change memory device includes an antimony (Sb)-selenium (Se) chalcogenide Sb | 10-02-2008 |
20100148141 | NON-VOLATILE PROGRAMMABLE DEVICE INCLUDING PHASE CHANGE LAYER AND FABRICATING METHOD THEREOF - Provided is a non-volatile programmable device including a first terminal, a first threshold switching layer connected to part of the first terminal, a phase change layer connected to the first threshold switching layer, a second threshold switching layer connected to the phase change layer, a second terminal connected to the second threshold switching layer, and third and fourth terminals respectively connected to a side portion of the phase change layer and the other side portion opposite to the side portion of the phase change layer. | 06-17-2010 |
20110065246 | EMBEDDED PHASE-CHANGE MEMORY AND METHOD OF FABRICATING THE SAME - An embedded memory required for a high performance, multifunction SOC, and a method of fabricating the same are provided. The memory includes a bipolar transistor, a phase-change memory device and a MOS transistor, adjacent and electrically connected, on a substrate. The bipolar transistor includes a base composed of SiGe disposed on a collector. The phase-change memory device has a phase-change material layer which is changed from an amorphous state to a crystalline state by a current, and a heating layer composed of SiGe that contacts the lower surface of the phase-change material layer. | 03-17-2011 |
20120217465 | NON-VOLATILE PROGRAMMABLE DEVICE INCLUDING PHASE CHANGE LAYER AND FABRICATING METHOD THEREOF - Provided is a non-volatile programmable device including a first terminal, a first threshold switching layer connected to part of the first terminal, a phase change layer connected to the first threshold switching layer, a second threshold switching layer connected to the phase change layer, a second terminal connected to the second threshold switching layer, and third and fourth terminals respectively connected to a side portion of the phase change layer and the other side portion opposite to the side portion of the phase change layer. | 08-30-2012 |
Young Whan Park, Daejeon-City KR
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20090192277 | Method of producing cyclic olefin polymers having polar functional groups, olefin polymer produced using the method and optical anisotropic film comprising the same - A method of producing a cyclic olefin polymer having a polar functional group and a high molecular weight with a high yield in which a catalyst is not deactivated due to polar functional groups, moisture and oxygen is provided. According to the olefin polymerization method, deactivation of a catalyst due to polar functional groups of monomers can be prevented, and thus a polyolefin having a high molecular weight can be prepared with a high yield, and the ratio of catalyst to monomer can be less than 1/5000 due to good activity of the catalyst, and thus removal of catalyst residues is not required. | 07-30-2009 |
20100174039 | Catalyst system for polymerizing cyclic olefin having polar functional group, polymerizing method using the catalyst system, olefin polymer produced by the method and optical anisotropic film comprising the olefin polymer - A catalyst system capable of producing a cyclic olefin polymer having a polar functional group and a high molecular weight with a high yield in which a catalyst is not deactivated due to polar functional groups of monomers, and a method of producing polymers using the same are provided. The catalyst system for polymerization of olefin according to the present invention has good thermal and chemical stability, and thus, in the method of preparing polyolefin using the catalyst system, the deactivation of a catalyst due to a polar functional group of the monomer can be prevented, and thus a high yield of the cyclic olefin polymer with a high molecular weight can be obtained when a ratio of the catalyst to the monomer is 1:5000, and the removal of a catalyst residue is not required. | 07-08-2010 |
Youn-Ok Park, Daejeon-City JP
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20100128819 | APPARATUS FOR CANCELLING DC OFFSET AND METHOD THEREOF - An apparatus and method for canceling a DC offset efficiently removes the DC offset by calculating the DC offset after acquiring synchronization in a terminal receiver used for an orthogonal frequency division multiplexing system. The apparatus for canceling the DC offset includes an adding/averaging unit ( | 05-27-2010 |
Yunkyung Park, Daejeon-City KR
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20100049059 | APPARATUS AND METHOD FOR MEASURING BLOOD PRESSURE - Disclosed are blood pressure measuring apparatus and method, in which a blood pressure measuring posture of a person to be examined is calculated on the basis of signals that are measured by an inclination measuring unit, so as to guide the person to be examined to maintain a reference measuring posture. When it is confirmed that the person to be examined maintains the reference measuring posture, blood pressure is measured on the basis of a measured living body signal of the person to be examined. By this disclosure, since the blood pressure measuring posture of the person to be examined can be correctly guided by inclination sensors, the person to be examined can accurately measure the blood pressure using a noninvasive and a nonpressurized method. | 02-25-2010 |
20100064293 | APPARATUS AND METHOD FOR MANAGING USER SCHEDULE - The present invention estimates a schedule of a user by collecting and analyzing information on a user-related work to be performed by accessing a schedule management program on the basis of corresponding user information when the user enters a region capable of using computing resources and executes a service application program that can perform the corresponding scheduled job through a virtual machine by automatically creating the virtual machine of a computing environment that can perform the estimated scheduled job. According to the present invention, a virtual machine is dynamically created so as to execute a work grasped as a work that the user must perform by analyzing a current schedule while access of the user and an application program for performing the corresponding work in the created virtual machine is automatically executed, such that user convenience is increased. | 03-11-2010 |
20100115511 | SYSTEM AND METHOD FOR PROVIDING PERSONALIZATION OF VIRTUAL MACHINES FOR SYSTEM ON DEMAND (SOD) SERVICE - Disclosed is a system for providing personalization of virtual machines for a system on demand (SoD) service includes an SoD server, wherein the SoD server includes an aspect measuring unit that measures user's use habits and aspects with respect to the peripheral devices on the basis of use or not of the peripheral devices; a preference generating unit that calculates preference for each attribute with respect to attributes included in the peripheral devices on the basis of the use habits and aspects measured by the aspect measuring unit; and a configuration unit that calculates satisfaction for each device with respect to peripheral devices which can be used in the virtual machine on the basis of the preference for each attribute calculated by the preference generating unit and configures the peripheral devices of the virtual machine on the basis of the calculated satisfaction for each device. | 05-06-2010 |
20100146123 | RESOURCE ALLOCATION METHOD OF EACH TERMINAL APPARATUS USING RESOURCE MANAGEMENT SYSTEM AND RESOURCE MANAGEMENT SERVER APPARATUS - By a method for sharing and using possessed resources between a plurality of terminal apparatuses in a ubiquitous system environment, the resources possessed by the plurality of terminal apparatuses distributed in the system environment are shared and allocated to a user as necessary and the user can combine and use the allocated resources. | 06-10-2010 |
20100146506 | SYSTEM AND METHOD FOR OFFERING SYSTEM ON DEMAND (SoD) VIRTUAL-MACHINE - There are provided a system for offering a SoD virtual-machine includes a main server that includes: a server communication unit that transmits and receives data to and from a plurality of peripheral devices and a plurality of user terminals; a peripheral device detection unit that detects one or more peripheral devices among peripheral devices around the user terminal on the basis of user information received from the user terminal connected through the server communication unit and peripheral device information around the user terminal; and a server control unit that sets one or more peripheral devices detected by the peripheral device detection unit as IO devices of a virtual machine allocated to the connected user terminal. | 06-10-2010 |
20100146507 | SYSTEM AND METHOD OF DELIVERY OF VIRTUAL MACHINE USING CONTEXT INFORMATION - There is provided a system of delivery of a virtual machine using context information. The system of delivery of a virtual machine includes: a context information manager that receives one or more user context information from a user terminal device; and a virtual machine generator that generates a virtual machine suitable for the user terminal device in accordance with the one ore more received user context information and outputs the generated virtual machine to the user terminal device. | 06-10-2010 |