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Kwak, Daejeon

Byeongok Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140376409ROUTING METHOD AND APPARATUS - In an ID-based communication system, a routing apparatus creates a hierarchical network topology by using link state information on higher-level domains, lower-level domains, and peer domains. The routing apparatus then makes a routing table based on the hierarchical network topology, and performs routing by using the routing table.12-25-2014
20150016459METHOD AND APPARATUS FOR FORWARDING PACKET IN IDENTIFIER/LOCATOR SEPARATION ENVIRONMENT - A method of a node forwarding a packet in an identifier/locator separation environment is provided. The packet forwarding method includes providing a routing table for storing information on domains, searching the routing table using an identifier (ID) of a domain to which a destination node belongs to obtain first information that is information on a next hop, storing the first information in a forwarding table together with an ID of the destination node, searching the forwarding table using the destination node ID to obtain second information that is information on a next hop, and forwarding the packet using the second information.01-15-2015

Byeong-Ok Kwak, Daejeon KR

Patent application numberDescriptionPublished
20160028622NETWORK PATH SETUP METHOD BASED ON IDENTIFIER, AND APPARATUS THEREOF - Exemplary embodiments of the present invention relate to a network path setup method based on identifier and apparatus thereof. A network path setup method in a repeater equipment, the method comprising: receiving a packet; determining whether source/destination node identifiers included in the received packet are stored in a routing table; and updating the routing table based on a node identifier and a port number which is used for packet transmission to the node when it is determined as that the node identifier is not stored. According to exemplary embodiments of the present invention, it simplifies a routing table to quickly search packet paths and reduces traffics since it does not require to define an additional header.01-28-2016

Byong Sung Kwak, Daejeon KR

Patent application numberDescriptionPublished
20080197051Desulfurizing Agent for Removing Organic Sulfur Compounds, Preparation Method thereof and Method for Removing Organic Sulfur Compounds Using the Same - Disclosed herein are a desulfurizing agent for removing organic sulfur compounds, a preparation method thereof, and a method for removing organic sulfur compounds using the same. The desulfurizing agent consists of a copper-zinc-aluminum complex free of alkaline metal, with a large surface area. When being contacted with organic sulfur compounds, such as t-butylmercaptan, tetrahydrothiophene, dimethylsulfide, etc., the desulfurizing agent exhibits excellent desulfurization ability and is not de-graded especially at high temperatures as high as 150˜350° C.08-21-2008
20080274878Platinum Based Catalyst for Oxidation/Reduction Reaction and Its Use - Disclosed herein are a platinum-based catalyst for oxidation/reduction reactions and the use thereof. The platinum-based catalyst is prepared by loading a catalyst composition comprising a water-soluble salt of at least one metal selected from among cerium (Ce), zirconium (Zr) and rhenium (Re), on a support comprising at least one selected from among alumina, silica and titania. The disclosed catalyst can be prepared in a simple manner without any particular limitation as to the kind of usable water-soluble platinum salt, and when it is applied to various oxidation reactions, including water gas shift reactions of carbon monoxide, three-way catalytic reactions, and selective oxidation reactions of carbon monoxide, and to reduction reactions, such as reactions of removing nitrogen oxide (NOx), it will show excellent catalytic activity. In particular, the disclosed catalyst shows excellent performance even in a specific temperature range in which it is difficult to apply the prior high-temperature water gas shift reaction catalyst and low-temperature water gas shift reaction catalyst. Also, it can remove carbon monoxide even at high temperatures without the loss of hydrogen caused by methanation, and thus is particularly useful in a hydrogen production process of producing high-purity hydrogen for fuel cells.11-06-2008
20090005581Method for Preparing 3-Hydroxytetrahydrofuran Using Cyclodehydration - Disclosed is a method of preparing 3-hydroxytetrahydrofuran using cyclodehydration. More particularly, this invention relates to a method of preparing 3-hydroxytetrahydrofuran, including subjecting 1,2,4-butanetriol to cyclodehydration under reaction conditions of a reaction temperature of 30˜180° C. and reaction pressure of 5000 psig or less in the presence of a strong acid cation exchange resin catalyst having a sulfonic acid group as an exchange group. According to the method of this invention, 3-hydroxytetrahydrofuran can be economically prepared at higher yield and productivity than when using conventional methods.01-01-2009
20090018291METHOD OF REGENERATION OF TITANIUM-CONTAINING MOLECULAR SIEVE CATALYST - Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve catalyst used in epoxidation of olefin through simple treatment using a mixture solvent comprising aqueous hydrogen peroxide and alcohol. According to the method of this invention, when the catalyst having decreased activity is regenerated, the activity of the regenerated catalyst is equal to that of new catalyst and can be maintained stable for a long period of time.01-15-2009
20090261020Nickel Based Catalyst Using Hydrotalcite-Like Precursor and Steam Reforming Reaction of LPG - The present invention relates to a nickel-based catalyst using hydrotalcite-like precursor and a steam reforming reaction by using the catalyst, and particularly to a nickel-based catalyst prepared by dispersing nickel uniformly onto the inner part and the surface of the support through a substitution between the magnesium and the active nickel metal and optimizing the molar ratios of nickel, magnesium and aluminum in order to utilize nickel as an active metal and a hydrotalcite-like precursor consisting of aluminum and magnesium, which shows an increased specific surface area of the catalyst and surface area of the active nickel, and thus enables the production of hydrogen-rich gas in high yield during the steam reforming reaction of LPG with superior maintenance of catalytic activity for a long period of time due to the inhibition of carbon deposition.10-22-2009
20100004120PLATINUM BASED CATALYST FOR OXIDATION/REDUCTION REACTION AND ITS USE - Disclosed herein are a platinum-based catalyst for oxidation/reduction reactions and the use thereof. The platinum-based catalyst is prepared by loading a catalyst composition comprising a water soluble salt of at least one metal selected from among cerium (Ce), zirconium (Zr) and rhenium (Re), on a support comprising at least one selected from among alumina, silica and titania. The disclosed catalyst can be prepared in a simple manner without any particular limitation as to the kind of usable water soluble platinum salt, and when it is applied to various oxidation reactions, including water gas shift reactions of carbon monoxide, three-way catalytic reactions, and selective oxidation reactions of carbon monoxide, and to reduction reactions, such as reactions of removing nitrogen oxide (NOx), it will show excellent catalytic activity. In particular, the disclosed catalyst shows excellent performance even in a specific temperature range in which it is difficult to apply the prior high-temperature water gas shift reaction catalyst and low-temperature water gas shift reaction catalyst. Also, it can remove carbon monoxide even at high temperatures without the loss of hydrogen caused by methanataion, and thus is particularly useful in a hydrogen production process of producing high-purity hydrogen for fuel cells.01-07-2010
20110195963NOVEL CARBAMOYLOXY ARYLALKANOYL ARYLPIPERAZINE COMPOUND, PHARMACEUTICAL COMPOSITIONS COMPRISING THE COMPOUND AND METHOD FOR TREATING PAIN, ANXIETY AND DEPRESSION BY ADMINISTERING THE COMPOUND - There is provided a novel carbamoyloxy arylalkanoyl arylpiperazine derivative compound having abundant racemic or enantiomeric characteristics, represented by the Formula 1, and pharmaceutically available salts or hydrates thereof. Also, there are provided a pharmaceutical composition for treating pain, anxiety or depression including an effective amount of the compound, and a method for treating pain, anxiety or depression in mammals by administering an effective amount of the compound to the mammals in need of treatment thereof.08-11-2011
20140088095METHOD FOR TREATING PAIN, ANXIETY OR DEPRESSION USING CARBAMOYLOXY ALKANOYL PIPERAZINE COMPOUND - There is provided a novel carbamoyloxy arylalkanoyl arylpiperazine derivative compound having abundant racemic or enantiomeric characteristics, represented by the Formula 1, and pharmaceutically available salts or hydrates thereof. Also, there are provided a pharmaceutical composition for treating pain, anxiety or depression including an effective amount of the compound, and a method for treating pain, anxiety or depression in mammals by administering an effective amount of the compound to the mammals in need of treatment thereof.03-27-2014

Patent applications by Byong Sung Kwak, Daejeon KR

Byoung-Kon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100151765TUBE CONNECTOR FOR ASSEMBLY TOY - Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible. In addition, disclosed is a tube connector for an assembly toy, which includes a semispherical body having a horizontal bottom surface, a circular hole perforated in the center of the body perpendicular to the bottom surface for insertion of a tube, and at least one insertion groove and plural coupling holes formed in the body. A tube connector coupling rib is fixedly inserted through the insertion groove or the coupling hole.06-17-2010
20120184174TUBE CONNECTOR FOR ASSEMBLY TOY - Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible.07-19-2012

Byung-Jae Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100150269SIGNAL MODULATING DEVICE, SIGNAL TRANSMITTING METHOD, AND CODE GENERATING METHOD - The present invention relates to a signal modulation device, a transmission method, and a code generation method. The signal modulation device includes a code storage unit including a plurality of n-bit members and storing a code with a number n or n−1 of different bits between two neighboring members, and a mapper for mapping data on symbols according to the code.06-17-2010
20100275093Secure Communication Using Error Correction Codes - Systems and methods for selecting a puncturing pattern for a low density parity check (LDPC) code are disclosed. One such method comprises: selecting a puncture pattern distribution for the LDPC code; calculating a security threshold and a reliability threshold for the LDPC, the LDPC having the selected puncture pattern distribution and also described by a degree distribution; storing the selected puncture pattern distribution responsive to a security gap for the LDPC being a lowest value encountered in any prior iterations; selecting another puncture pattern distribution for the LDPC code; and repeating the calculating, the storing, and the selecting another puncture pattern distribution steps.10-28-2010
20100291962METHOD OF CONTROLLING UPLINK POWER - Provided is that a base station that receives an index and a path attenuation difference of a monitoring sector from a mobile station and receives an amount of interference of the monitoring sector from a base station that corresponds to the monitoring sector. In addition, the base station measures an interference state of the monitoring sector by using the amount of interference and the path attenuation difference and calculates a control value of uplink power based on the interference state of the monitoring sector. Further, the base station transmits the control value of the uplink power to the mobile station.11-18-2010
20110222626RETRANSMISSION APPARATUS AND METHOD - A retransmission method maps at least some bits of codeword to symbols according to a first modulation method at the time of first transmission. The retransmission method maps at least some bits of the codeword to symbols according to a second modulation method that is different from the first modulation method at the time of second transmission after the first transmission. In this case, the second modulation method may have a lower modulation order than that of the first modulation method, or a sum of average reliability per bit of symbol according to the second modulation may be larger than a sum of average reliability per bit of symbol according to the first modulation method.09-15-2011
20120182836COMMUNICATION SYSTEM USING ULTRASONIC WAVES - Disclosed is a technology for performing a communication using an ultrasonic wave in an environment where an electromagnetic shielding is so severe that a wireless communication using an electromagnetic is difficult. In the environment where the electromagnetic shielding is severe, an ultrasonic terminal according to the present invention may transmit the ultrasonic wave using a solid structure as a medium, and an ultrasonic base station may receive the ultrasonic wave using the solid structure as the medium.07-19-2012
20130196652METHOD AND APPARATUS FOR SETTING COMMUNICATION TARGET IN WIRELESS COMMUNICATION SYSTEM - Provided is a method and apparatus for setting a communication target in a wireless communication system. A method of setting, by a setting device, a communication target in a wireless communication system may include: obtaining a synchronization and a characteristic of a target device by receiving a signal transmitted from the target device during a predetermined period of time; transmitting setting information to the target device based on the synchronization and the characteristic of the target device; and completing setting of the communication target by receiving setting response signal from the target device.08-01-2013
20140112153METHOD AND DEVICE FOR MANAGING CONTENTION WINDOW BASED ON TRANSMISSION ERROR DETECTION - Disclosed is a method and apparatus for managing a contention window based on detection of a transmission error, the method including: recognizing a transmission failure of data in the case of transmitting data using a contention-based wireless channel access method; verifying whether the transmission failure of data occurs due to a channel error or a collision by a contention between terminals; and determining a value of a contention window set in association with data transmission based on the verification result.04-24-2014
20140113547APPARATUS FOR SPATIAL FILTERING USING TRANSMISSION DELAY DIFFERENCE OF SIGNALS AND METHOD FOR THE SAME - Provided are an apparatus for spatial filtering using transmission delay difference of signals and method for the same. A scanning apparatus may comprise a first signal generating part generating a first signal, a second signal generating part generating a second signal, and a response receiving part receiving a response message based on arrival time difference between the first signal and the second signal from the counterpart apparatus. Therefore, the scanning apparatus can discriminate apparatuses positioned in a specific direction and apparatuses positioned in other directions by using arrival time difference of received signals.04-24-2014
20140233411METHOD AND APPARATUS FOR DETECTING COLLISION IN WIRELESS MULTI-ACCESS CHANNEL - A method and an apparatus for detecting a collision in a wireless multi-access channel are disclosed. The method of detecting the collision in the wireless multi-access according to an exemplary embodiment includes generating a request-to-send (RTS) message by a transmission terminal, transmitting the RTS message to a reception terminal, and receiving a response message from the reception terminal and determining whether a collision occurs based on a number of pieces of tone information included in the response message.08-21-2014
20140235172METHOD AND SYSTEM FOR COMMUNICATING BETWEEN DEVICES - A method and system for communicating between devices according to the present invention are provided. The method for communicating between the devices according to the present invention is used for communicating with a first terminal, and is carried out in a device having a capacitive touch screen. The method includes: detecting a change in capacitance for a specific part of the capacitive touch screen, which occurs by means of the first terminal; and acquiring information transferred from the first terminal on the basis of the detected change in capacitance of the capacitive touch screen. The communicating method using such a touch screen may be easily used for various services such as authenticating terminals or transferring files between local terminals.08-21-2014
20140293809METHOD AND APPARATUS OF CONTROLLING MAC-LAYER PROTOCOL FOR DEVICE-TO-DEVICE COMMUNICATIONS WITHOUT ID - An apparatus and method for enabling a device-to-device (D2D) communication, despite an identifier (ID) of a target device being unknown are provided. The apparatus may include a target device determining unit to select primary target devices based on relative distance information between a main device and a target device for communication with the main device, and to determine a final target device based on relative distance information between the main device and each of the primary target devices, a transmitter to transmit, to each of the primary target devices, a selection notification message and a relative distance information request message that are generated by the target device determining unit, and a receiver to receive, from each of the primary target devices, a response message corresponding to the selection notification message, and relative distance information used to determine a final target device.10-02-2014
20150031403METHOD AND APPARATUS FOR SPATIAL FILTERING USING DIFFERENCE IN PROPAGATION DELAY BETWEEN ELECTROMAGNETIC SIGNAL AND ACOUSTIC SIGNAL - A method and apparatus related to spatial filtering to select target terminals only located at a predetermined distance among a plurality of target terminals, using a propagation delay between an electromagnetic signal and an acoustic signal are provided. A user terminal transmits the acoustic signal to neighboring terminals to select terminals of which distances from the user terminal correspond to a distance from the user terminal to a target terminal among neighboring terminals. The electromagnetic signal is transmitted to the neighboring terminals in a predetermined transmission delay. Response signals are received from neighboring terminals of which distances from the user terminal are within a predetermined range, among the neighboring terminals that have received the acoustic signal and the electromagnetic signal. The neighboring terminals receive the acoustic signal from the user terminal, and receive the electromagnetic signal transmitted in the transmission delay from the user terminal.01-29-2015
20150223170METHOD AND APPARATUS FOR RECOGNITION OF INFORMATION CONTAINED IN FRAME - A method and apparatus for recognition of information contained in a frame are provided. The method includes performing synchronization over a synchronization period of the frame, and recognizing, through an indication block of a listen period included in the frame, whether information exists in the remaining part of the listen period after the indication block.08-06-2015
20150229503METHOD FOR GENERATING SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method of generating a signal in a wireless communication system and an apparatus for the same are disclosed. A method of generating a transmission signal, performed in a transmission apparatus, comprises generating a first sequence having a convex/concave signal pattern; generating a second sequence meeting a predetermined auto and cross correlation property; and generating a transmission signal based on the first sequence and the second sequence. Thus, a transmission signal immune to a frequency offset can be generated.08-13-2015
20150263875METHOD AND APPARATUS FOR GENERATING SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for generating a signal in a wireless communication system by allocating a sequence to a plurality of subcarriers for sending the signal and generating the signal based on the sequence and a phase rotation sequence are provided.09-17-2015
20150263877METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING PREAMBLE - A method and apparatus for transmitting/receiving a preamble is provided. The apparatus includes an STF and an LTF including a plurality of repetition patterns, a CDF for collision sensing among messages, a CEF for channel estimation, and a CSF for carrier sensing, wherein the time length of the STF equals the time length of two orthogonal frequency division multiplexing (OFDM) symbols.09-17-2015
20150264658METHOD OF PERFORMING SYNCHRONIZATION IN DISTRIBUTED WIRELESS COMMUNICATION SYSTEM AND TERMINAL SUPPORTING THE SAME - Disclosed herein are a method of performing synchronization in a distributed wireless communication system, and a terminal supporting the same. A distributed wireless communication system includes a plurality of networks. Time resources of each of a plurality of networks are divided into a synchronization slot, a discovery slot, a peering slot, and a data slot. A first terminal belonging to a first network determines whether a synchronization signal is received from a terminal belonging to a second network in the data slot of the first network. The first terminal detects whether it has met the second network that is out of synchronization with the first network if the synchronization signal is determined to have been received.09-17-2015
20150327232METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING INFORMATION IN WIRELESS DISTRIBUTED SYSTEM - When a transmitter transmits a first Timing Offset Indication iDentifier (TOID) of a plurality of TOIDs representing timing offset of a frame, the transmitter determines a first codeword corresponding to the first TOID of a plurality of codewords representing a subcarrier. The transmitter allocates a busy tone to a first subcarrier that the first codeword represents. The transmitter transmits the busy tone.11-12-2015
20150341875METHOD AND TERMINAL FOR SYNCHRONIZING IN DISTRIBUTED WIRELESS COMMUNICATION - A method of synchronization in a distributed wireless communication system and a terminal supporting the same are disclosed. A terminal increases its contention window value if it receives a synchronization signal within a synchronization slot. The terminal decreases its contention window value if it receives no synchronization signal within the synchronization slot. The terminal determines whether to transmit a synchronization signal or not by using the increased or decreased contention window value.11-26-2015
20160029334METHOD AND APPARATUS FOR SYNCHRONIZING NETWORKS AMONG HETEROGENEOUS WIRELESS OPERATORS - Disclosed are a method and an apparatus for synchronizing networks among heterogeneous wireless business operators. A terminal belonging to a first network monitors whether there is a different network in a monitoring period of a frame. The terminal synchronize a frame start synchronization point of the first network with a frame start synchronization point of a second network that corresponds to a discovered synchronization point when the synchronization point having a time offset of as much as a predetermined number of periods is discovered.01-28-2016
20160081047SYNCHRONIZATION METHOD IN DISTRIBUTED WIRELESS COMMUNICATION SYSTEM AND TERMINAL SUPPORTING THE SAME - Disclosed is a synchronization method in a distributed wireless communication system and a terminal supporting the same. In a synchronization method, a terminal splits a synchronization period into a plurality of backoff slots and randomly selects a backoff counter using the contention window. Furthermore, the terminal checks whether a channel is idle during at least one of the plurality of backoff slots and changes the backoff counter based on a result of the check.03-17-2016
20160112101APPARATUS AND METHOD FOR SPATIAL FILTERING BY ESTIMATING ANGLE OF DEVIATION FOR LINE OF SIGHT OF USER - An apparatus for spatial filtering receives a signal transmitted from a first terminal and detects a synchronization start point in time from a transmission frame included in the signal. The apparatus for spatial filtering demodulates a user-defined sequence included in the transmission frame and the at least one SRJBF sequence when the synchronization start point in time is detected, and then estimates a relative angle based on the demodulated user-defined sequence and SRJBF sequence.04-21-2016
20160128044METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING INFORMATION IN WIRELESS DISTRIBUTED SYSTEM - When a transmitter transmits a first Timing Offset Indication iDentifier (TOID) of a plurality of TOIDs representing timing offset of a frame, the transmitter determines a first codeword corresponding to the first TOID of a plurality of codewords representing a subcarrier. The transmitter allocates a busy tone to a first subcarrier that the first codeword represents. The transmitter transmits the busy tone.05-05-2016
20160128103RANDOM ACCESS METHOD AND TERMINAL SUPPORTING THE SAME - Provided are a random access method and a terminal supporting the random access method. The terminal may monitor a state of a channel, when the state of the channel is idle, attempt a packet transmission at a first packet transmission probability, and transmit a packet including the first packet transmission probability.05-05-2016

Patent applications by Byung-Jae Kwak, Daejeon KR

Byung-Man Kwak, Daejeon KR

Patent application numberDescriptionPublished
20110155034BALANCE MAINTAINING EQUIPMENT FOR FLOATING BODY - A balance maintaining equipment for a floating body includes a driving device for rotating a driving shaft; a first eccentric rotating body positioned at one side of the driving device and connected to the driving shaft to rotate around the driving shaft by the rotation thereof; and a second eccentric rotating body positioned at the other side of the driving device and connected to the driving shaft to rotate around the driving shaft by the rotation thereof, while having a phase difference of 180 degrees from the rotation of the first eccentric rotating body. The balance maintaining equipment generates the moment in the opposite direction to the roll of the floating body. Furthermore, when the roll period of the floating body is changed, the balance maintaining equipment varies the angular velocity of the driving shaft to interwork with the roll period of the floating body.06-30-2011
20110155683CRANE SPREADER AND METHOD FOR AUTOMATICALLY LANDING THE SAME - A crane spreader for use in lifting a container includes an attachment unit, a head block, a frame unit, a position adjustment unit and a fixation unit. The attachment unit detachably attaches the crane spreader to an upper surface of the container. The head block has a pulley connected to a trolley of a crane through a cable and coupled to the attachment unit to restrict a horizontal movement the attachment unit with respect to the head block. The frame unit is supported by the head block to be horizontally movable with respect to the head block, the frame unit being disposed below the head block with a gap therebetween. The position adjustment unit aligns the frame unit with the container by displacing the frame unit with respect to the attachment unit. The fixation unit engages the container with the frame unit.06-30-2011
20110247991MULTI-STAGE TROLLEY FOR A CRANE AND A CRANE THEREWITH - A crane for loading and unloading a cargo includes multi-stage trolley. The multi-stage trolley for a crane includes a first trolley movable in a longitudinal direction along a boom of the crane; a second trolley movable in a lateral direction on the first trolley; a hoisting wire provided in the longitudinal direction along the boom; spreader connected to the hoisting wire through the first trolley and the second trolley and supported by the hoisting wire, the spreader being movable in a vertical direction according to a movement of the hoisting wire. The multi-stage trolley further includes a sheave block unit for changing a direction of the hoisting wire to maintain a vertical level of the spreader constant when the first trolley and/or the second trolley is moved.10-13-2011
20110272376TROLLEY ASSEMBLY FOR A CRANE AND A CRANE THEREWITH - A crane for loading and unloading a cargo includes a trolley assembly. The trolley assembly includes a first trolley movable in a longitudinal direction along a boom of the crane; a second trolley movable in a lateral direction on the first trolley; a hoist provided on the second trolley; a spreader movable in a vertical direction by the hoist; a light emitting unit provided on the spreader; and a smart camera for capturing an image of the light emitting unit to measure a movement of the spreader. A movement of the hoist is controlled by a location control unit based on the measured movement of the spreader.11-10-2011

Changsoo Kwak, Daejeon KR

Patent application numberDescriptionPublished
20110061210APPARATUS FOR ADJUSTING LENGTH OF TENSION TIE FOR CABLE NETWORK ANTENNA - An apparatus for adjusting the length of a tension tie mounted on a deployable antenna based on a cable network structure includes a cable retainer provided with a retaining hole, a cable being connected to the cable retainer; a retaining case coupled to the outer periphery of the cable retainer and provided with a plurality of retaining holes; and a retainer positioned inside the cable retainer and configured to extend through the retaining hole of the cable retainer and through one of the retaining holes of the retaining case so that the cable retainer and the retaining case are prevented from moving in the longitudinal direction.03-17-2011
20110148548LINE FILTER FORMED ON DIELECTRIC LAYERS - Provided is a line filter. The line filter includes a plurality of dielectric layers stacked one another, a plurality of line resonator each comprising transmission lines on at least two of the dielectric layers, and a tuning unit adjusting a binding amount and resonance frequency of the line resonators. Since the line filter includes at least one line resonator on at least two stacked dielectric layers, the integration can be easily realized. Further, since the line filter can be adjusted even after the line filter is manufacture, the line filter has an excellent frequency property. Since the line filter is realized on the plurality of the dielectric layers, the frequency band can be widened.06-23-2011
20120235874DEPLOYABLE REFLECTARRAY ANTENNA - A deployable reflectarray antenna includes a plurality of reflectarray antenna panels each having one edge connected to be folded and unfolded. Each reflectarray antenna panel includes a membrane having reflecting elements and a support frame. The support frame includes outer frames surrounding edges of the membrane, and a plurality of reinforcing members disposed in a vertical direction between the outer frames in a length direction.09-20-2012
20130076565BUTLER MATRIX - A butler matrix includes at least one input coupler that is positioned at an input end of the butler matrix, receives an input signal, and divides and outputs it to a plurality of paths, and at least one output coupler that receives a signal from the input coupler and divides the signal into a plurality of paths to output it as an output signal. A separation coupler is formed in an intersecting path including an intersecting section at which transmission paths intersect among a plurality of paths through which a signal is transmitted to separate signals transmitted through different transmission paths. Further, a compensation coupler is formed in a path excluding the intersecting path to compensate a phase difference.03-28-2013

Patent applications by Changsoo Kwak, Daejeon KR

Chang Soo Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100259443ANTENNA SYSTEM FOR MOBILE VEHICLES - The present invention relates to an antenna system mounted on a mobile vehicle. In the present invention, a power distributor and a part of a high-frequency module that includes a frequency converter are placed in an external fixed unit that is placed outside a radome. In addition, an active cooler/cooling fin, a heater, and an air circulation fan are placed at an internal bottom plane of the antenna system, and a cooling fin and cooling fan are placed at an external bottom plane of the antenna system.10-14-2010
20110198058HEAT EXHAUSTION STRUCTURE FOR HEAT DISSIPATING DEVICE - A heat exhaustion structure for a heat dissipating device is provided. The present invention relates to a heat exhaustion structure for a heat dissipating device, and more particularly, to a heat exhaustion structure that may effectively exhaust an internal heat generated by heat dissipating devices included in a semiconductor package and in a large number of electronic products.08-18-2011
20120044125CABLE NETWORK ANTENNA AND THE PRODUCING METHOD THEREOF - A cable network antenna and a manufacturing method thereof are provided. The cable network antenna maintains correct positions of nodes at which a plurality of cables intersect, using a circumferential truss that minimizes transformation of a reflecting surface. Accordingly, accuracy of the reflection surface is achieved.02-23-2012
20130099972ANTENNA APPARATUS - Provided is an antenna apparatus which employs a small number of antenna devices and is intended to obtain a desired pattern without adjusting current level and phase of each antenna device. The antenna apparatus includes a first ridge horn antenna, and a second ridge horn antenna spaced apart from the first ridge horn antenna by a predetermined distance. Here, a multi-beam pattern is generated using a third-order mode beam pattern of a synthetic beam obtained by synthesizing beams respectively radiated from the first and second ridge horn antennas. Accordingly, the antenna apparatus can be simplified, and a desired multi-beam pattern can be obtained without adjusting signal level and phase of each antenna device. Also, by employing the ridge horn antennas as array devices, the antenna apparatus can be used in a wide frequency band.04-25-2013
20130127680ANTENNA APPARATUS - Provided is an antenna apparatus which employs a small number of antenna devices and is intended to obtain a desired pattern without adjusting amplitude level and phase of each antenna device. The antenna apparatus includes a first ridge horn antenna, and a second ridge horn antenna spaced apart from the first ridge horn antenna by a determined distance. Here, a multi-beam pattern is generated using a third-order mode beam pattern of a synthetic beam obtained by synthesizing beams respectively radiated from the first and second ridge horn antennas. Accordingly, the antenna apparatus can be simplified, and a desired multi-beam pattern can be obtained without adjusting signal level and phase of each antenna device. Also, by employing the ridge horn antennas as array devices, the antenna apparatus can be used in a wide frequency band.05-23-2013
20130271233APPARATUS AND METHOD OF TUNING MICROWAVE FILTER - Disclosed are an apparatus and a method of tuning a microwave filter. An apparatus for tuning a microwave filter according to the present invention includes: a measurement device configured to measure a scattering (S) parameter curve of a microwave filter desired to be tuned; a control device configured to perform tuning so that a shape of the S parameter curve according to a movement of a preselected tuning screw is matched to a shape of a target S parameter curve, and then determine a quantity of transfer of the tuning screw based on feature points on the S parameter curve by using a least squares method in which a preset weight is reflected; and a tuning device configured to move the tuning screw based on the determined quantity of transfer of the tuning screw.10-17-2013
20140041444APPARATUS FOR ANTENNA WEIGHTLESSNESS DEPLOYMENT TEST - Disclosed is an apparatus for an antenna weightlessness deployment test. The apparatus for an antenna weightlessness deployment test includes: a pair of first direction mobile support shafts mounted in parallel at a predetermined distance; first direction mobile deployment apparatuses mounted to be supported by an air bearing so as to slidably move on the first direction mobile support shaft; a second direction mobile support shaft mounted to connect the first direction mobile deployment apparatuses with each other; and second direction mobile deployment apparatuses mounted to be supported by an air bearing so as to slidably move on the second direction mobile support shaft.02-13-2014
20140077893SUBSTRATE INTEGRATED WAVEGUIDE COUPLER - Disclosed is a substrate integrated waveguide coupler. The substrate integrated waveguide coupler according to the present invention includes: a substrate; an upper conducting plate applied to an upper portion of the substrate; a lower conducting plate applied to a lower portion of the substrate; two peripheral via holes disposed parallel to each other on both sides of the substrate, respectively, and being of a pipeline type electrically connecting the upper conducting plate and the lower conducting plate to each other; and an inner via hole disposed between the two peripheral via holes, and having a center thereof separated by a preset distance and forming a short slot functioning to couple input signals.03-20-2014
20140077901COMPACT WAVEGUIDE TERMINATION - Provided is a compact waveguide termination including: a waveguide, a termination coupled with the waveguide and formed with a groove, and a thin film resistor part coupled with the groove and configured to attenuate an input signal at a central region of the waveguide, thereby improving frequency performance.03-20-2014
20140087678APPARATUS AND SYSTEM FOR RECEIVING WIRELESS SIGNAL WITH ANTI-JAMMING - The apparatus for receiving a wireless signal with anti-jamming includes: a wireless signal receiving unit receiving a wireless signal and including at least one antenna; and a jamming signal blocking unit disposed in front of the wireless signal receiving unit to block a jamming signal input from at least one direction and having a size or an interval from the wireless signal receiving unit determined according to at least one of an antenna pattern of the wireless signal receiving unit, a direction in which the jamming signal is input, and a level of the jamming signal. According to an exemplary embodiment of the present invention, it is possible to smoothly receive a targeted signal while blocking the jamming signal under the environment in which a general signal and the jamming signal coexist.03-27-2014
20150035623VARIABLE HIGH FREQUENCY FILTER DEVICE AND ASSEMBLY - A tunable filter device that changes a central frequency and a bandwidth is provided. The tunable filter device may include a body forming a cavity together with a cover, a resonator attached to or integrally formed on a lower surface of the cavity, a frequency-tuning element including a head and a shaft, the shaft passed through the cover and inserted in the resonator, and a cam disposed on the head to contact the head, wherein an insertion length of the shaft is controlled by the cam.02-05-2015
20150116058RADIO FREQUENCY (RF) CAVITY FILTER INCLUDING TUNING BOLT HOLDING MEMBER AND SAID TUNING BOLT HOLDING MEMBER - Provided is a radio frequency (RF) cavity filter including a tuning bolt holding member, the RF cavity filter including a top block, a bottom block to form a cavity along with the top block, a resonator disposed in the cavity, a tuning bolt to penetrate through the top block, and a tuning bolt holding member disposed to be in contact with one end of the tuning bolt to hold the tuning bolt, which may fix a position of the tuning bolt.04-30-2015
20150280299WAVEGUIDE BAND PASS FILTER USING SHORT-CIRCUIT STUB FOR REJECTION PERFORMANCE IMPROVEMENT - Disclosed is a waveguide resonator for a band pass filter, which configures a short-circuit stub low-frequency band pass filter in a waveguide resonator to pass a low frequency and reject a stop band, thereby effectively removing undesired spurious or harmonic components on a frequency spectrum.10-01-2015
20150349429DUAL REFLECTOR ANTENNA WITH HYBRID SUBREFLECTOR - The present invention relates to a dual reflector antenna with a hybrid subreflector, and more particularly, to a dual reflector antenna with a subreflector having a structure in which an ellipse and a hyperbola are combined. An exemplary embodiment of the present invention provides a dual reflector antenna including: a main reflector; and a hybrid subreflector which faces the main reflector and has a first structure and a second structure which are combined therein.12-03-2015

Patent applications by Chang Soo Kwak, Daejeon KR

Dae-Keun Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100151765TUBE CONNECTOR FOR ASSEMBLY TOY - Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible. In addition, disclosed is a tube connector for an assembly toy, which includes a semispherical body having a horizontal bottom surface, a circular hole perforated in the center of the body perpendicular to the bottom surface for insertion of a tube, and at least one insertion groove and plural coupling holes formed in the body. A tube connector coupling rib is fixedly inserted through the insertion groove or the coupling hole.06-17-2010
20120184174TUBE CONNECTOR FOR ASSEMBLY TOY - Disclosed is a tube connector for an assembly toy, which includes a cylindrical body having upper and lower horizontal surfaces, a circular hole perforated through the center of the body perpendicular to the horizontal surfaces for insertion of a tube, and at least one coupling rib integrally formed around the body at the level of one of the horizontal surfaces. As a tube is coupled to the coupling rib, assembly of various shapes of three-dimensional toys is possible.07-19-2012

Da-Hee Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140295320PLATINUM-RHODIUM NANO-DENDRITIC ALLOY AND DIRECT METHANOL FUEL CELL INCLUDING THE SAME - A platinum-rhodium nano-dendritic alloy includes a plurality of first structure having a round shape and a second structure connecting the plurality of first structures and having a thin bridge shape, wherein the first and second structures containing platinum and rhodium homogeneously distributed therein.10-02-2014

Dong Hoon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20160136227Pharmaceutical Composition for Anti-Obesity Comprising Complex Extracts, Including Saururi Chinensis Baill. Extract, Curcumae Longae Rhizoma Extract and Polygalae Radix Extract - Disclosed herein are a pharmaceutical composition for the prevention or treatment of obesity comprising an extract of a mixture comprising Saururi chinensis Baill., Curcumae Longae Rhizoma, and Polygalae Radix, or an extract of a mixture comprising Saururi chinensis Baill., Curcumae Longae Rhizoma, Polygalae Radix, and Acori Gramineri Rhizoma; a food composition comprising the extract of the mixture; and a method of manufacturing the extracts of the mixture. The extracts of the present invention can inhibit fat generation without adverse effects such as cellular toxicity and thus can be widely used for the prevention, improvement, or treatment of obesity or obesity-related diseases.05-19-2016

Dong Min Kwak, Daejeon KR

Patent application numberDescriptionPublished
20120044475COMPOSITE OPTICAL DEVICE FOR SIGHTING TARGETS AND MEASURING DISTANCES - The present invention aims to provide a composite optical device which includes the day-time optical device, thermal imaging optical device, laser application device and displaying device while reducing the volume and weight, further comprising attenuator that can control the amount of light for easy display on the display. The present invention also aims to provide a composite optical device with enhanced efficiency of transmitting laser and easy operability by installing the attenuator at an appropriate location. To attain the object of the invention, the composite optical device for day and night time sighting and measuring distance, having a laser application device, a day-time optical device, a thermal imaging optical device and a display, comprises a laser transmitting optical device comprising a beam shaping lens 02-23-2012

Dong Yong Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100030540SYSTEM AND METHOD FOR RECONSTRUCTING TRAFFIC ACCIDENT - Provided is a system and method for automatically reconstructing a traffic accident. The accident reconstructing system includes a data collecting unit, a geographical data providing unit, and an accident analyzing unit. The data collecting unit collects/transmits accident-related data according to the occurrence of a traffic accident. The geographical data providing unit transmits the geographical data of the neighborhood of the accident site. The accident analyzing unit reconstructs the traffic accident virtually on the basis of the data outputted from the data collecting unit and the geographical data providing unit.02-04-2010
20100098048METHOD FOR HYBRID MEDIUM ACCESS CONTROL FOR VEHICLE COMMUNICATION - A method for hybrid media access control for vehicle communication is provided. The method divides a radio channel into time slots, which are predetermined time units, and sets terminals as owners or non-owners for the divided time slots to be able to access the channel. Accordingly, it is possible to reduce the probability of contention by distributed access to the slots and provide a MAC protocol having excellent performance.04-22-2010
20100158164APPARATUS AND METHOD FOR TIME SYNCHRONIZATION AND RECEPTION APPARATUS OF OFDM SYSTEM - An apparatus for time synchronization of an orthogonal frequency division multiplexing (OFDM) system oversamples a received signal using a master clock having a frequency at least four times higher than a minimum sampling frequency in a transmission apparatus, sets one of a plurality of oversampled signals to an on-time signal, and shifts each of the remaining oversampled signals by a predetermined time on the basis of the on-time signal. The apparatus for time synchronization calculates a correlation value by correlating each of the shifted signals and the on-time signal with a previously known signal, detects a maximum energy value among the calculated correlation values, and detects a start point of a frame by comparing the maximum energy value with a predetermined threshold value.06-24-2010
20100173603METHOD AND SYSTEM FOR TRANSMITTING AND RECEIVING WARNING MESSAGE - Provided are a method and a system for transmitting and receiving a warning message that rapidly inform an adjacent hop of a dangerous situation that occurs on a road. The method for transmitting the warning message includes selecting one or more relay vehicles by using distances between vehicles and state information of the vehicles when the dangerous situation occurs on a road or outside, and increasing a warning message sequence number and generating and transmitting a warning message containing an identifier of the relay vehicle and a retransmission time.07-08-2010
20100184369COOPERATIVE COMMUNICATION METHOD FOR VEHICULAR COMMUNICATION - A cooperative communication method for vehicular communication is provided. The method in which when one vehicle transmits a signal to another vehicle, a signal of a transmission vehicle passes through a roadside device or a plurality of vehicles and thereafter signals having a plurality of paths are transmitted to a reception vehicle, and the reception vehicle combines and demodulates the signals received through the plurality of paths.07-22-2010
20110018732DEVICE AND METHOD FOR COLLECTING INFORMATION RELATED TO INFRASTRUCTURE, AND POSITIONING METHOD AND SYSTEM USING THE SAME - An infrastructure information collecting device collects measurement information including location information regarding a plurality of wireless access devices disposed in an indoor space based on an indoor map, and a positioning system generates information regarding a wireless communication infrastructure of the corresponding indoor space based on the thusly collected measurement information. The positioning system then provides the generated wireless communication infrastructure information to a terminal of which location is desired to be measured, and then the terminal measures its location based on the wireless communication infrastructure information and signals received from nearby wireless access devices.01-27-2011
20110102180APPARATUS AND METHOD FOR ESTIMATING TAG LOCATION - A first tag that is located in a communication coverage area among a plurality of tags is selected as a base tag in order to estimate tag location in an apparatus for estimating tag location that communicates with a plurality of tags. A second tag whose location is estimated among the plurality of tags is searched. First distance information of the second tag is estimated by performing a ranging procedure of the second tag. The second distance information estimated between the first tag and the second tag is received from the first tag, and the location information of the second tag is estimated by using the first distance information and the second distance information.05-05-2011
20110144858VEHICLE GATEWAY, AND APPARATUS AND METHOD FOR VEHICLE NETWORK INTERFACE - Provide are a vehicle gateway, and an apparatus and a method for vehicle network interface. The vehicle gateway includes a first interface connected to each unit of a vehicle network, a second interface connected to one or more access devices acquiring vehicle information from the vehicle network, and a packet processor connecting the first interface to the second interface, and determining a communication system and a communication path to each of the access devices and a process order of the vehicle information acquisition.06-16-2011
20110153652METHOD FOR TRANSMITTING VEHICLE INFORMATION - A method for a vehicle information collecting device installed in a vehicle to transmit vehicle information includes: generating a vehicle information identifier list including a plurality of vehicle information and a plurality of vehicle information identifiers respectively mapped on the plurality of vehicle information; transmitting the vehicle information identifier list to a terminal; receiving a request for transmitting vehicle information corresponding to at least one vehicle information identifier included the vehicle information identifier list from the terminal; and transmitting vehicle information corresponding to the at least one vehicle information identifier to the terminal based on the vehicle information identifier list.06-23-2011
20120095681MULTI-USER RELATIONSHIP-BASED NAVIGATION APPARATUS AND NAVIGATION MANAGEMENT METHOD USING THE SAME - Disclosed herein is a multi-user relationship-based navigation apparatus. The multi-user relationship-based navigation apparatus includes a traveling situation information collection unit, a traveling situation information transmitting/receiving unit, a path information extraction unit, and a path display unit. The traveling situation information collection unit collects the traveling situation information of a user. The traveling situation information transmitting/receiving unit receives the common traveling situation information of other users in a multi-user relationship, and transmits the traveling situation information. The path information extraction unit extracts path information, related to paths on which the other users actually traveled, from the common traveling situation information. The path display unit displays a path to a destination of the user, the path being generated using the path information.04-19-2012
20120101719APPARATUS AND METHOD FOR DETECTING LOCATIONS OF VEHICLE AND OBSTACLE - Disclosed herein is an apparatus for detecting locations of a vehicle and an obstacle. The apparatus for detecting locations of a vehicle and an obstacle includes at least one distance measurement unit and a data processing unit. The distance measurement unit measures distance data relevant to a vehicle and an obstacle within a measurement area. The data processing unit maps the distance data on a grid layer, detects the location of the vehicle based on the result of the mapping, detects the location of the obstacle based on the detected location of the vehicle, and modifies the detected location of the vehicle using the distance data.04-26-2012
20120136510APPARATUS AND METHOD FOR DETECTING VEHICLES USING LASER SCANNER SENSORS - Disclosed herein is an apparatus for detecting vehicles using laser scanner sensors. The apparatus includes a vehicle location detection unit, a shadow area detection unit, an estimation unit, and a control unit. The vehicle location detection unit detects information about locations and headings of target vehicles located in a local detection area from sensors arranged on the road. The shadow area detection unit calculates shadow areas corresponding to the respective sensors based on the information about the locations of the target vehicles and information about types of the target vehicles. The estimation unit estimates the locations and shadow areas of the target vehicles which will be obtained after a predetermined time has elapsed. When a specific target vehicle tries to enter one of the estimated shadow areas, the control unit outputs a speed control command used to decrease the speed of the specific target vehicle.05-31-2012
20120161713VEHICLE ENERGY HARVESTING APPARATUS AND ENERGY MANAGEMENT METHOD THEREOF - Disclosed herein is a vehicle energy harvesting apparatus. The vehicle energy harvesting apparatus includes a battery unit, an energy collection unit, an external charging interface, and an energy management unit. The battery unit is formed in a vehicle. The energy collection unit is provided on one side of the vehicle, and configured to generate renewable power by collecting renewable energy. The external charging interface is formed on one side of the vehicle in order to exchange power between the battery unit and a smart grid. The energy management unit is configured to perform control such that the renewable power of the energy collection unit is stored in the battery unit, and such that power is exchanged between the battery unit and the smart grid using the external charging interface.06-28-2012
20120163275METHOD OF PROVIDING WIRELESS COMMUNICATION BETWEEN VEHICLE AND ROADSIDE AND VEHICLE WIRELESS COMMUNICATION DEVICE USING THE SAME - Disclosed herein is a method of providing vehicle wireless communication. In the method, a vehicle receives hand-over-related link information, which includes slot request information about slots requested by a vehicle to a roadside wireless communication device for hand-over of the vehicle, from a central control server. A hand-over preparation message, which includes the hand-over-related link information, is send to a vehicle wireless communication device connected to the vehicle. It is determined that the vehicle completed preparation for performance of the hand-over when a response message to the hand-over preparation message is received from the vehicle wireless communication device. Slots are allocated in consideration of the hand-over-related link information. Beacon frames, which include slot allocation information about the allocated slots, are transmitted to the vehicle wireless communication device. Accordingly, the vehicle wireless communication device and the roadside wireless communication device can reliably perform communication without interruption.06-28-2012
20120163671CONTEXT-AWARE METHOD AND APPARATUS BASED ON FUSION OF DATA OF IMAGE SENSOR AND DISTANCE SENSOR - Disclosed herein are a context-aware method and apparatus. In the context-aware method, distance data is collected using a distance sensor. Thereafter, image data is collected using an image sensor. Thereafter, the distance data and the image data are fused with each other, and then context awareness is performed. Thereafter, safe driving management is performed based on the fusion of the data using the results of the context awareness.06-28-2012
20120185112APPARATUS AND METHOD FOR DETECTING LOCATION OF VEHICLE - Disclosed herein is an apparatus and method for detecting the location of a vehicle using results sensed by sensing devices installed outside the vehicle and the internal information of the vehicle without obtaining the current location information of the vehicle using signals transmitted from a Global Positioning System (GPS) satellite. The apparatus for detecting the location of a vehicle includes a location information reception unit for receiving location information that is generated by sensing a vehicle passing by a sensing point and that corresponds to the sensing point. A location detection unit estimates a current location of the vehicle based on information sensed by internal sensors of the vehicle and control information for a vehicle manipulation part while the location information is not received, and corrects the estimated current location of the vehicle using received location information when the location information is received.07-19-2012
20120314643MULTICASTING SYSTEM AND METHOD FOR VEHICULAR COMMUNICATION NETWORK - Disclosed herein are a multicasting system and method for a vehicular communication network. The multicasting system includes a plurality of roadside communication devices for communicating with a plurality of vehicular communication devices. Each of the roadside communication devices includes a communication unit for communicating with the plurality of vehicular communication devices and at least one neighboring roadside communication device, a beacon analysis unit for analyzing beacon frames when a slot allocation request is received from one of the vehicular communication devices, a determination unit for searching for a period in which a slot has not been allocated and determining whether a period for allocation of a slot to the vehicular communication device is present, and a slot allocation unit for allocating a slot period for multicasting of the vehicular communication device based on results of the determination of the determination unit.12-13-2012
20130162824APPARATUS AND METHOD FOR RECOGNIZING CURRENT POSITION OF VEHICLE USING INTERNAL NETWORK OF THE VEHICLE AND IMAGE SENSOR - An apparatus and method for recognizing a current position of a vehicle are disclosed. The apparatus receive information about an initial position of a vehicle from an external input, and receive an image signal from an image sensor to take a picture of an identifiable object and extract image signal information corresponding to the identifiable object from the image signal, and connect to an internal network of the vehicle of the vehicle and receive information about a traveling state of the vehicle, and calculate the current position of the vehicle based on the information obtained.06-27-2013
20130211656AUTONOMOUS DRIVING APPARATUS AND METHOD FOR VEHICLE - Disclosed herein are an autonomous driving apparatus and method for a vehicle. The autonomous driving apparatus includes an autonomous driving context data processing unit, a simulator unit, a section determination unit, a path planning unit, and a context determination main control unit. The autonomous driving context data processing unit gathers autonomous driving context data. The simulator unit simulates autonomous driving based on the gathered autonomous driving context data. The section determination unit determines a reliable section or an unreliable section based on results of the simulation. The path planning unit searches for at least one global path to a set destination based on results of the determination, and searches the at least one global path for a local path along which the autonomous driving is possible. The context determination main control unit controls the autonomous driving of the vehicle along the local path.08-15-2013
20130260759METHOD FOR HANDOVER IN VEHICULAR COMMUNICATIONS AND ON-BOARD EQUIPMENT USING THE SAME - Disclosed herein are a method for handover in vehicular communications and On-Board Equipment (OBE) using the same. In the method for handover in vehicular communications, OBE performs a handover from first Road-Side Equipment (RSE) to second RSE. The OBE receives beacon frames from the first RSE and the second RSE. The first average value of a received signal strength indication corresponding to the beacon frame received from the first RSE and the second average value of a received signal strength indication corresponding to the beacon frame received from the second RSE are calculated. The first cumulative gradient of the first average value and the second cumulative gradient of the second average value are calculated. The handover from the first RSE to the second RSE is performed based on the first average value, the second average value, the first gradient, and the second gradient.10-03-2013
20130307981APPARATUS AND METHOD FOR PROCESSING DATA OF HETEROGENEOUS SENSORS IN INTEGRATED MANNER TO CLASSIFY OBJECTS ON ROAD AND DETECT LOCATIONS OF OBJECTS - Disclosed herein are an apparatus and method for processing the data of heterogeneous sensors in an integrated manner to classify one or more objects on a road and detect the locations of the objects. The apparatus includes a camera image processing unit, a scanning information processing unit, and an integrated processing unit. The camera image processing unit generates the results of the processing of camera images based on the camera images collected from one or more cameras. The scanning information processing unit generates the results of the processing of scanning information based on the scanning information collected from one or more laser scanners. The integrated processing unit generates the types and final locations of the objects located on the road by processing the generated results of the processing of the camera images and the generated results of the processing of the scanning information in an integrated manner.11-21-2013
20140070960APPARATUS FOR GATHERING SURROUNDINGS INFORMATION OF VEHICLE - An apparatus for gathering information about surroundings of a vehicle includes: a vehicle sensor data gathering block configured to gather first information about surroundings of the vehicle from one or more sensors mounted on the vehicle; a roadside equipment data gathering block configured to gather second information about surroundings of the vehicle from a roadside communication device installed on a driving infrastructure; and a data integration block configured to classify the first information about surroundings and the second information about surroundings for predefined data types and integrate and manage the classified information about surroundings based on a preset reliability criterion.03-13-2014
20140136090VEHICLE TERMINAL APPARATUS AND METHOD FOR CONTROLLING THE SAME - A vehicle terminal apparatus and method for controlling the apparatus that receives vehicle location information, registers a service based on service notification information subsequent to receiving the service notification information, and extracts traffic information based on the vehicle location information is provided.05-15-2014
20140214271APPARATUS AND METHOD FOR DETECTING OBSTACLE ADAPTIVELY TO VEHICLE SPEED - Disclosed herein are an apparatus and method for detecting an obstacle adaptively to vehicle speed. The apparatus includes a control unit, a speed-adaptive camera sensor, a speed-adaptive laser scanner sensor, and a detection data integration unit. The control unit receives information about the speed of a vehicle and a Pulse Per Second (PPS) signal from a Global Positioning System (GPS) module. The speed-adaptive camera sensor adjusts the range of a detection region based on the information about the speed of the vehicle, and generates first detection data on an object. The speed-adaptive laser scanner sensor adjusts the range of the angle of the field of view of a laser scanner based on the information about the speed of the vehicle, and generates second detection data on the object. The detection data integration unit outputs obstacle detection data.07-31-2014
20140303882APPARATUS AND METHOD FOR PROVIDING INTERSECTION COLLISION-RELATED INFORMATION - Disclosed herein are an apparatus and method for providing intersection collision-related information. The apparatus for providing intersection collision-related information includes a surrounding information acquisition unit, a collision-related information calculation unit, and a collision-related information provision unit. The surrounding information acquisition unit acquires intersection traffic information including vehicle heading information, vehicle turning frequency information, vehicle trajectory information and vehicle speed information from one or more of a road sensor provided at an intersection and a vehicle sensor provided in a vehicle. The collision-related information calculation unit calculates intersection collision-related information including the degree of vehicle collision risk that is calculated using the intersection traffic information. The collision-related information provision unit provides the calculated intersection collision-related information to a user.10-09-2014
20150187216AUTONOMOUS DRIVING VEHICLE AND INFRASTRUCTURE FOR SUPPORTING AUTONOMOUS DRIVING THEREOF - Provided is an autonomous driving vehicle, and an infrastructure for supporting autonomous driving thereof. The autonomous driving vehicle of the present invention receives information obtained by converging sensor information (for example, infrastructure sensor information and traffic information) based on an infrastructure and vehicle sensor information selected by the infrastructure from the infrastructure positioned at the outside. Accordingly, the autonomous driving vehicle of the present invention may overcome a limitation of vehicle-based autonomous driving, thereby improving obstacle avoidance performance, solving inaccuracy of a sensor, and decreasing frequent setting of a path.07-02-2015

Patent applications by Dong Yong Kwak, Daejeon KR

Geun Jae Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140038813CATALYST FOR FISCHER-TROPSCH SYNTHESIS HAVING EXCELLENT HEAT TRANSFER CAPABILITY - The present invention relates to a catalyst for Fischer-Tropsch synthesis which has excellent heat transfer capability. This catalyst contains (1) central core particle or particles made of a heat transfer material (HTM) selected from the group consisting of a metal, a metal oxide, a ceramic, and a mixture thereof; and (2) outer particle layer which surrounds the central core particles and is attached to the surfaces of the central core particles by a binder material layer. The outer particle layer has a support and catalyst particles in a powder form containing metal particles disposed on the support. The catalyst having such a dual particle structure shows excellent heat transfer capability and, thus, exhibits high selectivity to a target hydrocarbon. Therefore, the catalyst of the present invention is useful in a fixed-bed reactor for Fischer-Tropsch synthesis for producing hydrocarbons from synthetic gas.02-06-2014
20140044614REACTOR SYSTEM FOR PRODUCING HYDROCARBONS FROM SYNTHETIC GAS - The invention relates to a reactor system, comprising a heat-exchange unit and a reaction unit that are assembled together into a structure. The heat-exchange unit has a plurality of plate or corrugated-plate heat exchangers, and is formed so as to attachable/detachable to/from the reaction unit and insertable into the latter. Accordingly, a catalyst may be attached to a heat-transfer surface of a heat exchanger by a washcoat method or the like, thus maximizing heat-transfer efficiency and enabling the easy removal or reattachment of the catalyst when the enabling the easy removal or reattachment of the catalyst at the end of the lifespan of the catalyst.02-13-2014
20150018438CATALYST ACTIVATION METHOD FOR FISCHER-TROPSCH SYNTHESIS - The present invention relates to: a catalyst activation method for Fischer-Tropsch synthesis; a catalyst regeneration method for Fischer-Tropsch synthesis; and a method for producing a liquid or solid hydrocarbon by using the Fischer-Tropsch synthesis reaction. The temperatures required for a metal carbide producing and activating reaction is markedly lower than existing catalyst activation temperatures, and the catalyst can be activated under conditions that are the same as Fischer-Tropsch synthesis reaction conditions, and thus there is no need for separate reduction equipment in the reactor, and a Fischer-Tropsch synthesis catalyst which has been used for a long time can be regenerated within the reactor without the catalyst being isolated or extracted from the reactor.01-15-2015

Gyea-Young Kwak, Daejeon KR

Patent application numberDescriptionPublished
20090311150CHEMICAL REACTOR INCLUDING HEAT EXCHANGERS - The present invention discloses to a chemical reactor with high heat efficiency and small volume, the chemical reaction of the present invention comprises a first unit for performing heat exchange of exothermic reaction products with exothermic reaction raw material fed for exothermic reaction; a second unit including a plate assembly for exothermic reactions and a plate assembly for endothermic reactions; and a third unit for performing heat exchange of endothermic reaction products with endothermic reaction raw material fed for endothermic reactions, the exothermic reaction raw material discharged from the first unit is fed into the plate assembly for exothermic reactions in the second unit and used in the exothermic reactions, the exothermic reaction products are fed into the first unit to pre-heat the exothermic reaction raw material, the endothermic reaction raw material discharged from the third unit is fed into the plate assembly for endothermic reactions in the second unit and used in the endothermic reactions, the endothermic reaction products are fed into the third unit to pre-heat the endothermic reaction raw material, and the first unit, the second unit and the third unit are laminately disposed.12-17-2009

Hee Youl Kwak, Daejeon KR

Patent application numberDescriptionPublished
20130270100EVAPORATIVE DESALINATION DEVICE OF MULTI STAGE AND MULTI EFFECT USING SOLAR HEAT - Disclosed is an evaporative desalination device of multi-stage and multi-effect using solar heat constructed in multi stage and multi effect as a desalination device that is capable of not only increasing fresh water output but also resolving a problem of conventional desalination device having series structure as well, through constructing: a multi stage vapor generator that generates vapor by passing a hot water supply pipe successively through a plurality of vapor generators to evaporate sea water inside thereof; a multi effect vapor generator that uses vapor in the respective vapor generators as heat source and forms a plurality of evaporator groups; and a discharge unit that condenses vapor in the multi effect generator by sea water to discharge fresh water in liquid state, and returns and supplies portions of discharged sea water to the multi stage vapor generator and the multi effect evaporator.10-17-2013

Hyo Shin Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100197673INDOLE AND INDAZOLE COMPOUNDS AS AN INHIBITOR OF CELLULAR NECROSIS - The present invention relates to indole or indazole compounds, pharmaceutically acceptable salts or isomers thereof which are useful for the prevention or treatment of cellular necrosis and necrosis-associated diseases. The present invention also relates to a method and a composition for the prevention or treatment of cellular necrosis and necrosis-associated diseases, comprising said indole or indazole compounds as an active ingredient.08-05-2010
20100210647INDOLE COMPOUNDS AS AN INHIBITOR OF CELLULAR NECROSIS - The present invention relates to new indole compounds, pharmaceutically acceptable salts or isomers thereof which are useful for the prevention or treatment of cellular necrosis and necrosis-associated diseases. The present invention also relates to a method and a composition for the prevention or treatment of cellular necrosis and necrosis-associated diseases, comprising said indole compounds as an active ingredient.08-19-2010
20100291533INDOLE AND INDAZOLE DERIVATIVES HAVING A CELL-, TISSUE- AND ORGAN-PRESERVING EFFECT - The present invention relates to a composition for preserving cells, tissues and organs, comprising as an active ingredient indole and indazole compounds of formula (1), or a pharmaceutically acceptable salt or isomer thereof, which are effective for preventing injury of organs, isolated cell systems or tissues caused by cold storage, transplant operation or post-transplantation reperfusion; a preservation method; and a preparation method of the composition.11-18-2010
20120214804PHARMACEUTICAL COMPOSITION COMPRISING INDOLE COMPOUND - The present invention relates to a pharmaceutical composition comprising a compound of formula (1), (2) or (3) as defined in the specification for the prevention or treatment of diseases associated with oxidative stress, mitochondria dysfunction, hypoxic injury, necrosis and/or ischemic reperfusion injury, and a cosmetic composition comprising an indole compound having an antioxidant effect.08-23-2012
20120252798INDOLE COMPOUNDS AS AN INHIBITOR OF CELLULAR NECROSIS - The present invention relates to new indole compounds, pharmaceutically acceptable salts or isomers thereof which are useful for the prevention or treatment of cellular necrosis and necrosis-associated diseases. The present invention also relates to a method and a composition for the prevention or treatment of cellular necrosis and necrosis-associated diseases, comprising said indole compounds as an active ingredient.10-04-2012
20120270203INDOLE AND INDAZOLE DERIVATIVES HAVING A CELL-, TISSUE- AND ORGAN-PRESERVING EFFECT - The present invention relates to a composition for preserving cells, tissues and organs, comprising as an active ingredient indole and indazole compounds of formula (1), or a pharmaceutically acceptable salt or isomer thereof, which are effective for preventing injury of organs, isolated cell systems or tissues caused by cold storage, transplant operation or post-transplantation reperfusion; a preservation method; and a preparation method of the composition.10-25-2012
20130237532INDOLE AND INDAZOLE COMPOUNDS AS AN INHIBITOR OF CELLULAR NECROSIS - The present invention relates to indole or indazole compounds, pharmaceutically acceptable salts or isomers thereof which are useful for the prevention or treatment of cellular necrosis and necrosis-associated diseases. The present invention also relates to a method and a composition for the prevention or treatment of cellular necrosis and necrosis-associated diseases, comprising said indole or indazole compounds as an active ingredient.09-12-2013
20140024618INDOLE COMPOUNDS AS AN INHIBITOR OF CELLULAR NECROSIS - The present invention relates to new indole compounds, pharmaceutically acceptable salts or isomers thereof which are useful for the prevention or treatment of cellular necrosis and necrosis-associated diseases. The present invention also relates to a method and a composition for the prevention or treatment of cellular necrosis and necrosis-associated diseases, comprising said indole compounds as an active ingredient.01-23-2014
20140116293Optical Film - The present invention relates to a cellulose acetate film for optical compensation and a retardation enhancer used therein, and relates to a cellulose acetate film which has a high retardation value in the thickness direction (Rth).05-01-2014
20140311381Cellulose Acylate Film - Provided is a cellulose acylate film for an optical film usable for optical compensation sheet, an optical filter for stereoscopic images, a polarizer and a liquid crystal display and the like.10-23-2014
20150068427Optical Film - Provided is an optical film used for the optical compensation, in which additives are added to thereby have a good stability at high temperature and high humidity, a higher chromaticity, a higher Haze and a higher moisture resistance, as well as a small thickness direction retardation (Rth).03-12-2015

Patent applications by Hyo Shin Kwak, Daejeon KR

Hyun Jung Kwak, Daejeon KR

Patent application numberDescriptionPublished
20150329504NOVEL BETA-ALANINE DERIVATIVES, PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, AND PHARMACEUTICAL COMPOSITION COMPRISING SAME AS ACTIVE INGREDIENT - The present invention relates to a beta-alanine derivative, pharmaceutically acceptable salts thereof, and a pharmaceutical composition including the same as an active ingredient. The novel beta-alanine derivative and pharmaceutically acceptable salts thereof according to the present invention may effectively inhibit the activity of DGAT1, which is an enzyme serving as a catalyst in the final step of the synthesis of neutral lipids, to thereby be effectively used as a pharmaceutical composition for preventing or treating various lipid metabolism-related disorders selected from the group consisting of obesity, dyslipidemia, fatty liver, insulin resistance syndrome, and hepatitis.11-19-2015

Ick-Soon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20120000137CRYSTALLINE CERIUM OXIDE AND PREPARATION METHOD OF THE SAME - The present invention relates to crystalline cerium oxide prepared in a simple, economical, and efficient manner, of which crystal structure, shape, and size can be easily adjusted and that exhibits excellent polishing properties, and a preparation method thereof. The crystalline cerium oxide can be prepared as sub-micron crystalline cerium oxide that has a mean volume diameter and a diameter standard deviation within a predetermined range.01-05-2012
20150030927POLYCRYSTALLINE LITHIUM MANGANESE OXIDE PARTICLES, PREPARATION METHOD THEREOF, AND CATHODE ACTIVE MATERIAL INCLUDING THE SAME - Provided are polycrystalline lithium manganese oxide particles represented by Chemical Formula 1 and a method of preparing the same:01-29-2015
20150030928CATHODE ACTIVE MATERIAL AND METHOD OF PREPARING THE SAME - Provided are a cathode active material including polycrystalline lithium manganese oxide and a boron-containing coating layer on a surface of the polycrystalline lithium manganese oxide, and a method preparing the same.01-29-2015
20150037678CATHODE ACTIVE MATERIAL AND METHOD OF PREPARING THE SAME - Provided are a cathode active material including polycrystalline lithium manganese oxide and a sodium-containing coating layer on a surface of the polycrystalline lithium manganese oxide, and a method preparing the same.02-05-2015
20150357627POLYCRYSTALLINE LITHIUM MANGANESE OXIDE PARTICLES, PREPARATION METHOD THEREOF, AND CATHODE ACTIVE MATERIAL INCLUDING THE SAME - Provided are polycrystalline lithium manganese oxide particles represented by Chemical Formula 1 and a method of preparing the same:12-10-2015
20160028077CATHODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Provided is a cathode active material including lithium transition metal oxide particles and composite particles, wherein the composite particles include any one selected from the group consisting of yttria stabilized zirconia (YSZ), gadolinia-doped ceria (GDC), lanthanum strontium gallate magnesite (LSGM), lanthanum strontium manganite (LSM), and nickel (Ni)—YSZ, or a mixture of two or more thereof, and the cathode active material includes the composite particles having a single-phase peak when analyzed by X-ray diffraction (XRD).01-28-2016

Patent applications by Ick-Soon Kwak, Daejeon KR

Jae Eun Kwak, Daejeon KR

Patent application numberDescriptionPublished
20160068580METHOD FOR TREATMENT OF GM1 GANGLIOSIDOSIS - The present invention relates to a method for preparing a GM1 gangliosidosis human cell model based on induced pluripotent stem cells (iPSCs) and iPSCs originated neural progenitor cells, and a use of the GM1 model above for the development of a GM1 gangliosidosis treating agent. The iPSCs originated from GM1 patient fibroblasts can be differentiated into neural progenitor cells (NPCs) and neurosphere cells that can emulate the characteristics shown in GM1 patient, so that the said cells can be efficiently used for the investigation of intracellular GM1 symptoms such as the GM1 gangliosidosis and lysosome accumulation and the gene expression pattern change. So, the GM1 cell model of the present invention can be efficiently used for the study of GM1 development mechanism and the study for the development of a therapeutic agent for the disease. The present inventors also established the inflammasome inhibitor rhIL1RA or Z-YVAD-FMK by using the above GM1 cell model and further confirmed that it can be efficiently used as a relieving/treating agent of GM1 gangliosidosis.03-10-2016
20160069865GM1 GANGLIOSIDOSIS HUMAN CELL MODEL AND USE THEREOF - The present invention relates to a method for preparing a GM1 gangliosidosis human cell model based on induced pluripotent stem cells (iPSCs) and iPSCs originated neural progenitor cells, and a use of the GM1 model above for the development of a GM1 gangliosidosis treating agent. The iPSCs originated from GM1 patient fibroblasts can be differentiated into neural progenitor cells (NPCs) and neurosphere cells that can emulate the characteristics shown in GM1 patient, so that the said cells can be efficiently used for the investigation of intracellular GM1 symptoms such as the GM1 gangliosidosis and lysosome accumulation and the gene expression pattern change. So, the GM1 cell model of the present invention can be efficiently used for the study of GM1 development mechanism and the study for the development of a therapeutic agent for the disease. The present inventors also established the inflammasome inhibitor rhIL1RA or Z-YVAD-FMK by using the above GM1 cell model and further confirmed that it can be efficiently used as a relieving/treating agent of GM1 gangliosidosis.03-10-2016

Jeongho Kwak, Daejeon KR

Patent application numberDescriptionPublished
20130155896Method and Terminal for Searching for an Access Point - Specifically, according to one embodiment of the present invention, a method for searching for an access point is provided. The method for searching may comprises the steps of: a terminal measuring the position thereof; checking an access point located near the measured position of the terminal; determining whether or not the distance between the terminal and the access point is greater than the radius range searchable by the terminal; and searching for the access point when the distance between the terminal and the access point is less than the radius range.06-20-2013
20130157678SCHEDULING IN CONSIDERATION OF TERMINAL GROUPS IN A MOBILE COMMUNICATION SYSTEM - Specifically, according to one embodiment of the present invention, a method for operating a base station that assigns frequency resources to terminals in a wireless communication system is provided. The method comprises the steps of calculating a first metric using information relating to the transmission rate of each terminal; calculating a second metric using information relating to a proportion of a group to which each of the terminals belongs; determining a terminal to which a frequency resource is assigned on the basis of the calculated first and second metrics; assigning the resource to the determined terminal; and updating the information relating to the transmission rate for each terminal and the information relating to proportion of a group.06-20-2013
20130315091METHOD AND DEVICE FOR REMOVING INTER-CELL INTERFERENCE OF AN ACCESS POINT IN A WIRELESS ACCESS SYSTEM - The present application relates to a method for central node (CN) to remove inter-cell interference of an access point (AP) in a wireless access system according to the present invention, including: receiving feedback information at each time slot from a plurality of APs, the feedback information including channel measurement information between terminals in each AP and the coverage of each AP, or position information of each AP; obtaining a preference for each pattern, the pattern representing an ON or OFF operation of each AP at each time slot; determining a target time rate of each pattern on the basis of the obtained preference for each pattern; receiving an instantaneous transfer rate of terminals in the coverage of each AP for each pattern from the plurality of APs; and determining a pattern in order to minimize reference between each AP according to the received instantaneous transfer rate.11-28-2013
20140105138APPARATUS AND METHOD FOR CONTROLLING INTER-CELL INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method for controlling inter-cell interference in a wireless communication system is disclosed. The method is performed by a base station (BS) and includes receiving information about an interference control period from a central controller; 04-17-2014

Jeong Ho Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140342750METHOD AND APPARATUS FOR MEASURING A POSITION IN A WIRELESS ACCESS SYSTEM - The present invention relates to a method in which a first station receives position information using a second station positioned in the vicinity of the first station. The method includes the steps of: receiving a station identifier (STID) and at least one fake identifier (ID) from a base station; obtaining a fake ID of the second station; requesting position information on the second station from the base station using the fake ID of the obtained second station; and receiving the position information on the second station of the base station, wherein the fake ID is an identifier used for position measurement and is mapped to the STID.11-20-2014
20140369217METHOD AND APPARATUS FOR ALLOCATING MINIMUM GUARANTEED RESOURCE AMOUNT TO ACCESS POINT IN WIRELESS ACCESS SYSTEM - The present invention relates to a method in which an upper layer entity allocates resources to a plurality of access points (APs) in a wireless access system, including the plurality of APs and the upper layer entity for managing the plurality of APs, the method comprising the step of: sensing a change in minimum guaranteed resource amount allocated to each of the APs; acquiring, from each of the APs, AP-level topology information according to a degree of interference with adjacent APs and AP weight information given to each AP by a service provider; determining a minimum guaranteed resource amount for each of the APs based on the acquired AP-level topology information and AP weight information; and transmitting the determined minimum guaranteed resource amount to each of the APs.12-18-2014

Jeong Min Kwak, Daejeon KR

Patent application numberDescriptionPublished
20130343820OIL FENCE AND METHOD FOR STORING SAME - The present invention relates to an oil fence and to a method for storing same. The oil fence includes: a vertical support part on which an air chamber, a water chamber, and a ballast are successively disposed in the lengthwise direction thereof; a curtain part connected between the vertical support parts disposed parallel to and spaced a predetermined distance from each other in the widthwise direction thereof; and attenuation bags disposed on the upper and lower portions of the curtain part. Thus, the oil fence may prevent seawater containing oil from overflowing in spite of high waves. Also, the oil fence may stably float on the sea in spite of poor weather conditions and high waves and may be easily stored and unfolded.12-26-2013

Jin Suk Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140245371DEVICE AND METHOD FOR PROVIDING CONTENT BY ACCESSING CONTENT STREAM IN HYBRID 3D TV, AND DEVICE AND METHOD FOR REPRODUCING CONTENT - A content providing apparatus and method, and a content reproduction apparatus and method for accessing a content stream in a hybrid three-dimensional television (3DTV) are disclosed. The content providing apparatus may include a content stream generation unit to generate a first content stream corresponding to a reference image and a second content stream corresponding to a supplementary image, a descriptor generation unit to generate a descriptor associated with the first content stream and the second content stream, and a data transmission unit to transmit the first content stream, the second content stream, and the descriptor to a content reproduction apparatus.08-28-2014
20140307049APPARATUS AND METHOD FOR PROVIDING IMAGE, AND APPARATUS AND METHOD FOR PLAYING IMAGE - Provided is a video providing method and a video playing method for a three-dimensional (3D) video, and an apparatus for performing the methods. The video providing method may transmit a reconstruction mode for reconstructing a low-resolution additional video having lower resolution than a high-resolution reference video.10-16-2014
20140313289APPARATUS AND METHOD FOR PROVIDING CONTENT FOR SYNCHRONIZING LEFT/RIGHT STREAMS IN FIXED/MOBILE CONVERGENCE 3DTV, AND APPARATUS AND METHOD FOR PLAYING CONTENT - An apparatus and a method for synchronizing left and right streams in a stationary/mobile hybrid 3DTV are disclosed. The apparatus according to an exemplary embodiment may synchronize content streams corresponding to left and right images using a timestamp pairing mode, a timestamp offset mode, and a network time protocol (NTP) synchronization mode.10-23-2014
201403205973D BROADCAST SERVICE PROVIDING METHOD AND APPARATUS, AND 3D BROADCAST SERVICE REPRODUCTION METHOD AND APPARATUS FOR USING IMAGE OF ASYMMETRIC ASPECT RATIO - Disclosed are a method and apparatus for providing a three-dimensional (3D) broadcast service using images with asymmetric aspect ratios and a method and apparatus for reproducing a 3D broadcast service. The method of providing the 3D broadcast service includes adjusting a second viewpoint image to be composed with a first viewpoint image into a 3D form with respect to the first viewpoint image and the second viewpoint image for 3D broadcasting, encoding the first viewpoint image and the adjusted second viewpoint image, and generating a broadcast stream of the first viewpoint image and a broadcast stream of the second viewpoint image by multiplexing the first viewpoint image and the second viewpoint image.10-30-2014
20140340480APPARATUS AND METHOD FOR MANAGING DELAY IN RECEIVING THREE-DIMENSIONAL (3D) IMAGE - An apparatus for managing a delay in receiving a three-dimensional (3D) image may include an image receiver to receive a left image and a right image for 3D image synthesis, and a substitution content output unit to output substitution content during a waiting time caused by a difference between points in time at which the left image and the right image are received.11-20-2014
20150062298IMAGE QUALITY INCREASING APPARATUS AND METHOD - An image quality increasing apparatus for a binocular three-dimensional television (3DTV) is disclosed. The image quality increasing apparatus may include an error detection unit to detect whether a reference image includes an error, a reference information correction unit to correct reference information for increasing an image quality of an additional image based on a detection result, an image quality increasing unit to increase the image quality of the additional image corresponding to the reference information, and a three-dimensional (3D) image synthesis unit to synthesize a 3D image using the quality increased additional image and the reference image.03-05-2015
20150109411IMAGE PLAYBACK APPARATUS FOR 3DTV AND METHOD PERFORMED BY THE APPARATUS - An image reproduction apparatus for a 3DTV and a processing method by the apparatus are disclosed. The image reproduction apparatus may determine an output time of a buffer to store a left image stream and a right image stream for a 3D image. The image reproduction apparatus may determine a buffer size or a buffer delay time using a reception time difference between the left image stream and the right image stream. Further, the image reproduction apparatus may correct a reference clock or a timestamp using the reception time difference between the left image stream and the right image stream.04-23-2015
20150138317SYSTEM AND METHOD FOR PROVIDING THREE-DIMENSIONAL (3D) BROADCAST SERVICE BASED ON RETRANSMISSION NETWORKS - A system and method for providing a three-dimensional (3D) broadcast service based on a retransmission network are provided. A 3D broadcast retransmission apparatus in a 3D broadcast service providing system may include a remultiplexer to remultiplex 3D TV service information in a received stream of a first broadcast network, based on a retransmission scenario, and to generate a stream of a retransmission network, and a retransmission network transmitter to transmit the stream of the retransmission network through the retransmission network.05-21-2015

Jiwon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20160126473MULTICYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE USING THE SAME - The present specification describes a novel polycyclic compound and an organic electroluminescent device using the same.05-05-2016

Jiyoung Kwak, Daejeon KR

Patent application numberDescriptionPublished
20090150987SYSTEM AND METHOD FOR CONFIGURING ENVRIONMENTS OF PRIVATE SYSTEM USING SMART CARD IN PUBLIC SYSTEM - Provided is a system and method for configuring environments of a private system using a smart card in a public system. The system includes a smart card that stores owner identification information, system-environment and work-environment information, private data, and payment information; a public system that authenticates a user of the smart card by using the owner identification information of the smart card and reconfigures a system and work environment similar to the private system to perform work continuously ; a service providing sever that provides an installation program or substitute program required for configuring the latest work environment of the user; and a payment server that pay a usage charge for the public system connected to the smart card.06-11-2009

Ji Young Kwak, Daejeon KR

Patent application numberDescriptionPublished
20120113150MULTIMEDIA COMMUNICATION APPARATUS AND PROCESSING METHOD FOR GROUP MEDIA COMMUNICATION - A multimedia communication apparatus for group media communication includes an encoding unit for receiving source data from an input device, capturing and compressing the source data at a specific display resolution, and sending the compressed data via network communication. Further, the multimedia communication apparatus for the group media communication includes a plurality of decoding units for receiving the compressed data via the network communication, restoring the compressed data into original data so that a user can view and listen to the data, and providing the original data to an output device. Furthermore, the multimedia communication apparatus for the group media communication includes a group communication management unit for activating at least one decoding unit selected from among the plurality of decoding units, adjusting and setting the display resolution, and adjusting a size of the memory and allocating memory of the adjusted size.05-10-2012

Joo-Sik Kwak, Daejeon KR

Patent application numberDescriptionPublished
20110077866DISTANCE RELAY USING REAL TIME LIGHTNING DATA - A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information.03-31-2011
20140107926DISTANCE RELAY USING REAL TIME LIGHTNING DATA - A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information.04-17-2014

Jungho Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140106827APPARATUS AND METHOD FOR SELECTING PROCESSING SPEED OF PROCESSOR AND WIRELESS NETWORK - An apparatus and method for selecting a processor clock speed and a wireless network are disclosed. The method for selecting a processing speed of a processor and/or a wireless network to be connected in a User Equipment (UE) in a wireless communication system includes detecting states of a processor-related queue and a network module-related queue, and selecting a processing speed of the processor-related queue and/or a wireless network to be connected, based on the detected states of the processor-related queue and the network module-related queue and power consumptions of a processor and a network module. The processing speed of the processor-related queue and/or the wireless network to be connected are selected to keep a difference between a length of the processor-related queue and a length of the network module-related queue at a predetermined value and minimize the power consumptions of the processor and the network module.04-17-2014

Jung Myung Kwak, Daejeon KR

Patent application numberDescriptionPublished
20140023538VANE ROTARY COMPRESSOR - Disclosed herein is a vane rotary compressor in which a fluid such as a refrigerant is compressed, with the volume of a compression chamber being reduced during the rotation of a rotor. In addition, disclosed is a vane rotary compressor having a configuration such that a space between a cylinder and a housing is divided into a high-pressure chamber, from which a high-pressure refrigerant is discharged, and an oil storage chamber in which oil included in the refrigerant is separated and stored, and having an oil decompression structure using a gap between a rotor and a head portion.01-23-2014
20140170010VANE ROTARY COMPRESSOR - The present invention relates to a vane rotary compressor in which, while a rotor is rotating, the volume of a compressing chamber is reduced and a fluid such as a refrigerant is compressed. The vane rotary compressor according to one embodiment of the present invention is provided with the compressing chamber, the inner circumferential surface of which is formed in the shape of an involute curve, wherein the rotor is hinge-coupled with a plurality of cantilever vanes such that compression efficiency is high and noise is prevented from occurring during the operation of the compressor.06-19-2014
20150369245VANE ROTARY COMPRESSOR - The present invention relates to a vane rotary compressor wherein the volume of a compression room is reduced and a fluid is compressed when a rotor rotates. According to one embodiment of the present invention, the present invention provides the vane rotary compressor for maximizing the rotational moment of a vane by extending a weight part at a front end part of the curved blade type vane so as to remove the hitting noise due to the delay of the rotational operation of the vane when the rotor is rotated, and increasing the performance by reducing the internal leak.12-24-2015

Jun Hyuk Kwak, Daejeon KR

Patent application numberDescriptionPublished
20150129992MEMS MICROPHONE HAVING DUAL BACK PLATE AND METHOD FOR MANUFACTURING SAME - Disclosed herein are a microelectromechanical systems (MEMS) microphone with a dual-back plate, and a method of manufacturing the same. The MEMS microphone according to an exemplary embodiment of the present invention includes: a substrate having a first back plate formed at a central portion thereof; a membrane plate disposed on first support parts formed at both sides on the substrate and vibrated depending on external sound pressure; and a second back plate disposed on second support parts formed at both sides of the membrane plate.05-14-2015

Kyung Woon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20110155683CRANE SPREADER AND METHOD FOR AUTOMATICALLY LANDING THE SAME - A crane spreader for use in lifting a container includes an attachment unit, a head block, a frame unit, a position adjustment unit and a fixation unit. The attachment unit detachably attaches the crane spreader to an upper surface of the container. The head block has a pulley connected to a trolley of a crane through a cable and coupled to the attachment unit to restrict a horizontal movement the attachment unit with respect to the head block. The frame unit is supported by the head block to be horizontally movable with respect to the head block, the frame unit being disposed below the head block with a gap therebetween. The position adjustment unit aligns the frame unit with the container by displacing the frame unit with respect to the attachment unit. The fixation unit engages the container with the frame unit.06-30-2011

Min Han Kwak, Daejeon KR

Patent application numberDescriptionPublished
20150205164REFLECTION PLATE FOR BACKLIGHT UNIT AND BACKLIGHT UNIT OF LIQUID CRYSTAL DISPLAY HAVING GOOD THERMAL CONDUCTIVITY - The present invention relates to a reflection plate for a backlight unit in a liquid crystal display device, and more particularly, to a reflection plate for a backlight unit in a liquid crystal display device, which is made of a thermoplastic thermal conductive resin composition having a thermal conductivity of at least 0.35 W/mK, thereby effectively solving the thermal problem of the backlight unit, and having excellent properties such as shock resistance, heat resistance, mechanical strength, and the like, as well as having excellent reflectivity, thereby improving the durability of the liquid crystal display device.07-23-2015

Min Hwan Kwak, Daejeon KR

Patent application numberDescriptionPublished
20090152699PACKAGING APPARATUS OF TERAHERTZ DEVICE - There is provided a packaging apparatus of a terahertz device, the apparatus including: a terahertz device having an active region at which terahertz wave is radiated or detected; a device substrate mounting the terahertz device whose active region is positioned at an opening region formed at the center of the device substrate, and electrically connecting the terahertz device and an external terminal to each other; a ball lens block arranged and fixed to an upper part of the terahertz device; and upper and lower cases receiving the device substrate mounted with the terahertz device therein and opening region vertical upper and lower portions of the active region of the terahertz device.06-18-2009
20100092183FREQUENCY TUNABLE TERAHERTZ CONTINUOUS WAVE GENERATOR - A frequency tunable terahertz continuous wave generator controls the number of feedbacks of an optical signal output from an optical intensity modulator by adding a feedback loop between input and output terminals of the optical intensity modulator, thereby simply tuning a frequency of a terahertz continuous wave.04-15-2010
20100134372THZ-BAND FOLDED DIPOLE ANTENNA HAVING HIGH INPUT IMPEDANCE - Provided is a folded dipole antenna including a meander line formed on a photoconductive substrate, characterized by an input impedance of several kΩ, which is much higher than that of a conventional dipole antenna, due to optimization of a horizontal length, a line interval, a width, and a line number of the meander line. Accordingly, use of the folded dipole antenna greatly improves an impedance matching characteristic between the antenna and a photomixer having an output impedance of 10 kΩ or more, and accordingly an output of a THz continuous wave.06-03-2010
20100155605TERAHERTZ WAVE TX/RX MODULE PACKAGE AND METHOD OF MANUFACTURING THE SAME - Provided are a terahertz wave transmission and reception (Tx/Rx) module package and method of manufacturing the same. The complete and separate terahertz wave Tx/Rx module package is implemented by simply aligning a silicon ball lens, a photoconductive antenna and a focusing lens, and thus facilitates generation or measurement of a terahertz wave. The terahertz wave Tx/Rx module package and method can remarkably reduce time and cost required to build a terahertz wave generation and measurement system, and simplify and miniaturize the terahertz wave generation and measurement system. In addition, characteristics of a terahertz wave generated by the photoconductive antenna can be simply measured. Furthermore, the terahertz wave Tx/Rx module package can be stored and transported with a photoconductive antenna, a silicon ball lens and a focusing lens kept aligned as they are, and also it is possible to minimize pollution of terahertz wave devices caused by surroundings.06-24-2010
20120086096CONDENSER LENS-COUPLED PHOTOCONDUCTIVE ANTENNA DEVICE FOR TERAHERTZ WAVE GENERATION AND DETECTION AND FABRICATING METHOD THEREOF - Provided are a condenser lens-coupled photoconductive antenna device for terahertz wave generation and detection and a fabricating method thereof. A condenser lens-coupled photoconductive antenna device for terahertz wave generation and detection includes a condenser lens, a photoconductive thin film deposited on the condenser lens, and a metal electrode formed on the photoconductive thin film for a photoconductive antenna. In the antenna device, the condenser lens and the photoconductive thin film are coupled to each other.04-12-2012
20120112230INTEGRATED ANTENNA DEVICE MODULE FOR GENERATING TERAHERTZ CONTINOUS WAVE AND FABRICATION METHOD THEREOF - The exemplary embodiments of the present invention include forming a photoconductor thin film on a front surface of a substrate; forming a photoconductor thin film pattern by patterning the photoconductor thin film; and forming a metal electrode on the photoconductor thin film pattern.05-10-2012
20120166144DEVICE CHARACTERISTICS MEASUREMENT METHOD USING AN ALL-OPTOELECTRONIC TERAHERTZ PHOTOMIXING SYSTEM AND SPECTRAL CHARACTERISTICS MEASUREMENT METHOD OF TERAHERTZ MEASURING APPARATUS USING THE SAME - A device characteristics measurement method using an all-optoelectronic terahertz photomixing system includes: calculating power of an antenna of a transmitter by adding a matching condition between output impedance of the photomixer and input impedance of the antenna of the transmitter to power of the photomixer of the transmitter; calculating power of an antenna of a receiver based on the power of the antenna of the transmitter; and outputting the power of the antenna of the transmitter and the power of the antenna of the receiver so as to analyze device characteristics of the photomixer and the antenna of the transmitter.06-28-2012
20130153757WAVEGUIDE PHOTOMIXER - Provided is a waveguide photomixer in which an absorption layer is selectively etched to reduce a junction area. The waveguide photomixer includes a buffer layer disposed on a substrate, a first clad layer disposed on the buffer layer and formed to have smaller width than that of a top surface of the buffer layer, an absorption layer disposed on the first clad layer and formed to have smaller width than that of a top surface of the first clad layer, a second clad layer disposed on the absorption layer and formed to have greater width than that of a top surface of the absorption layer, a contact layer disposed on the second clad layer, a first electrode unit disposed on the buffer layer where the first clad layer is not disposed, and a second electrode unit disposed on the contact layer.06-20-2013
20130156436TERAHERTZ RECEIVER AND METHOD OF RECEIVING TERAHERTZ BAND SIGNAL THEREOF - The inventive concept relates to a terahertz receiver. The terahertz receiver of the inventive concept includes a plurality of terahertz detectors detecting signals of terahertz band from received signals; a plurality of optical signal processing parts converting the detected terahertz signals into optical signals; an optical combiner combining the converted optical signals into one optical signal; a photodiode converting the combined optical signal into an electrical signal; and an amplifier amplifying the electrical signal.06-20-2013
20130156437TERAHERTZ TRANSMITTER - Disclosed is a terahertz transmitter which includes a photonics oscillator configured to generate two optical signals with different wavelength and strong correlation; a modulator configured to modulate the optical signals; a pre-amplifier configured to amplify the modulated optical signals; a photomixer configured to generate a terahertz signal through photomixing of the amplified optical signals; and a post-amplifier configured to amplify the terahertz signal and to transmit the amplified terahertz signal through an antenna.06-20-2013

Patent applications by Min Hwan Kwak, Daejeon KR

Noh Hong Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100177541VOLTAGE-SOURCED HVDC SYSTEM WITH MODULATION FUNCTION - A voltage-sourced High-Voltage Direct Current (HVDC) apparatus, which converts 3-phase AC voltage from a 3-phase AC power source into high voltage DC through a rectifier including switching elements, is provided. In the apparatus, a rectifier controller receives detected 3-phase currents, apparent power, and active power and generates D and Q-axis signals. A D/Q controller receives the signals and generates active power D-axis signal and apparent power Q-axis signal. A PWM unit generates PWM on/off signals for turning on/off the switching elements based on output signals from the D/Q controller. The D/Q controller includes a rotary converter to convert the D and Q-axis signals into AC signals and D and Q-axis order units coupled thereto, and generates the D and Q-axis signals through the order units. The PWM unit converts the D and Q-axis signals into 3-phase AC signals and compares them with 3-phase triangular waves to generate on/off signals for turning on/off the switching elements.07-15-2010

No Hong Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100082177System and Method For Controlling Multiple Facts - Disclosed are a system and method with a cooperative control algorithm that can appraise voltage stability of a power system in cooperation with a supervisory control and data acquisition (SCADA)/emergency management system (EMS) for cooperative control on multiple parallel flexible alternating current transmission systems (FACTS) to enhance voltage stability, and that can calculate individual operation points of the FACTS.04-01-2010
20120036355Method and system for encrypting and decrypting transaction in power network - Disclosed herein is a method and system for universally encrypting and decrypting a transaction which is a functional unit in a power network, while reducing a system load. When a transmitting node encrypts a transaction, the serial number of the transaction corresponding to each piece of data included in the transaction is present, and data is selected either using a predetermined criterion or randomly, and is then encrypted. The transaction serial number is added to the encrypted data. A receiving node selects data to be decrypted using the transaction serial number or a predetermined criterion. Through this operation, encryption has been conducted from the standpoint of the transaction, but only part of the data is encrypted based on a probability from the standpoint of the data, so that a system load is reduced, thus enabling efficient encryption and decryption technologies to be implemented.02-09-2012

Noh-Seok Kwak, Daejeon KR

Patent application numberDescriptionPublished
20130277210Electrolytic Cell for Flow Through-Continuous Deionization - The present invention relates to an electrolytic cell for an FT-CDI including: an injection port into which a bead and a concentrate are injected and a discharge port through which the bead and the concentrate are discharged to circulate the bead, thereby preventing the concentration of the bead from being degraded and disposes a mesh at a place in which the concentrate and the bead are received to disperse the concentrate and the bead well.10-24-2013
20130277220Method for Manufacturing Adsorptive Ball for Recovering Precious Metals and Flow Through-Continous Deionization (FT-CDI) Apparatus Using the Same - Disclosed is an adsorptive ball for recovering precious metals and resources, a method for manufacturing the adsorptive bale, a flow through-continuous deionization (FT-CDI) module capable of recovering precious metals by using the adsorptive ball, and a flow through-continuous deionization (FT-CDI) apparatus having the flow through-continuous deionization (FT-CDI) installed thereat.10-24-2013

Sang-Hoon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20080219935Phase Transitive Breath Care Products - Disclosed herein is a breath freshener whose phase is changed depending on the condition of use. A breath freshener of W/O emulsion phase comprises a monoglyceride as a main base, a polymer, an effective component for breath freshening, and a solvent. A breath freshener of solution phase comprises a monoglyceride as a main base, a polyol, a polymer, an effective component for breath freshening, and a solvent. Since the breath fresheners are sufficiently flowable to spray when being sprayed into the oral cavity, they are easy to use. In addition, the breath fresheners are phase-changed into a cubic phase by moisture, e.g., saliva, after being sprayed into the oral cavity, resulting in an increase in the viscosity and adhesiveness of the breath fresheners. Therefore, the effective breath freshening ingredient is slowly released from the breath fresheners, and as a result, continuous breath freshening effects are achieved.09-11-2008
20120134936Tooth Whitener - A tooth whitener is provided, including a water-in-oil (W/O) emulsion phase including: a discontinuous phase comprising a peroxide, a hydrophilic solvent, and a polyol, and a continuous phase comprising a glycerol monooleate, a polymer and a polyol, wherein the tooth whitener is flowable upon being applied to teeth and is solidified by the action of moisture after being applied to teeth, and then is adhered and fixed to teeth, and wherein the glycerol monooleate is in an amount of 15% to 95% by weight, based on total weight of the tooth whitener composition.05-31-2012

Patent applications by Sang-Hoon Kwak, Daejeon KR

Sang Ii Kwak, Daejeon KR

Patent application numberDescriptionPublished
20090201212Antenna system having electromagnetic bandgap - An antenna system includes an antenna transmitting and receiving a signal; a power feeding line feeding electric power to the antenna; and a metal conductor ground electrically connected to the power feeding line. Further, the metal conductor ground includes an electromagnetic bandgap.08-13-2009

Sang Il Kwak, Daejeon KR

Patent application numberDescriptionPublished
20090147428METAL CASE AND UNIT CELL FOR PREVENTING ELECTROSTATIC DISCHARGE AND METHOD OF FORMING THE SAME - A metal case for preventing electrostatic discharge includes an electromagnetic bandgap restricting current generated by electrostatic discharge and formed by arrangement of unit cells. Further, a method of forming a metal case preventing an electrostatic discharge includes forming an electromagnetic bandgap by arranging a plurality of unit cells; and forming a metal case having the electromagnetic bandgap to restrict current generated by the electrostatic discharge.06-11-2009
20090237323Apparatus and method for reducing electromagnetic waves - An apparatus for reducing electromagnetic waves, includes an electromagnetic bandgap for reducing a surface current induced by electromagnetic waves that are emitted from a radiator; and an absorber for reducing a surface current around the electromagnetic bandgap and for diminishing diffracted waves radiated from an end of a terminal.09-24-2009
20090284404ELECTROMAGNETIC WAVE ABSORBER USING RESISTIVE MATERIAL - An electromagnetic wave absorber includes a ground layer made of a metal conductor, a dielectric layer formed on the ground layer, and a unit cell pattern made of a resistive material, and formed on the dielectric layer. The unit cell pattern includes a fundamental patch having a regular square shape, in which a rectangular recess is formed on the center of each of the respective sides, the fundamental patch being located at the center of each of the unit cell pattern, and half cross dipole patches, which are respectively disposed at the four sides of the fundamental patch at a regular angle so as to be engaged with the recesses formed on the respective sides of the fundamental patch at a regular interval.11-19-2009
20100156523ARRANGEMENT STRUCTURE OF ELECTROMAGNETIC BAND-GAP FOR SUPPRESSING NOISE AND IMPROVING SIGNAL INTEGRITY - An electromagnetic-wave suppression structure in a multilayer PCB or package structure is supplied with a power to be used therein by a power distribution network including a power plane and a ground plane. The multilayer PCB and package includes: an electromagnetic-wave suppression structure including an electromagnetic band-gap; and the electromagnetic-wave suppression structure is formed at a specific portion(s) of the power plane and/or the ground plane to suppress noises.06-24-2010
20100156695ELECTROMAGNETIC ABSORBER USING RESISTIVE MATERIAL - An electromagnetic absorber using resistive material includes a ground plane of a conductive material; a dielectric layer formed on the ground plane; and a pattern layer in which specific unit cell patterns made of a resistive material are periodically arranged on the dielectric layer. The electromagnetic absorber is applied to an electronic toll collection system, a transportation device, a building structure, an electronic device and an anechoic chamber.06-24-2010
20100156739APPARATUS FOR REDUCING ELECTROMAGNETIC WAVES AND METHOD THEREOF - An apparatus for reducing electromagnetic waves includes a dielectric layer and a plurality of metal unit cells periodically formed over the dielectric layer. The apparatus further includes an adhesive formed under the dielectric layer for attaching the apparatus to a radiator radiating electromagnetic waves.06-24-2010
20110147063MULTILAYER BOARD FOR SUPPRESSING UNWANTED ELECTROMAGNETIC WAVES AND NOISE - A multilayer board for suppressing unwanted electromagnetic waves and noise includes: a power plane and a ground plane constituting a power distribution network; an electromagnetic wave suppression structure placed on the power plane or the ground plane; and a decoupling capacitor placed on the power plane or the ground plane, wherein the electromagnetic wave suppression structure and the decoupling capacitor are placed together.06-23-2011
20120075157APPARATUS FOR PROTECTING HUMAN BODY FROM ELECTROMAGNETIC WAVES - An apparatus for protecting a human body from electromagnetic waves includes: a radiator including an antenna; and a periodic structure that is combined with the radiator to form a radiation unit and has a plurality of unit cells periodically arranged, wherein each of the unit cells of the periodic structure contains a ground layer; an electromagnetic bandgap (EBG) board formed on the ground layer and serving as a dielectric spacer; and an EBG pattern made of metal and formed on the EBG board.03-29-2012
20130059550APPARATUS AND METHOD FOR BODY PROTECTION FROM ELECTROMAGNETIC FIELDS - An apparatus for use in a communication device with an antenna protects a body from electromagnetic fields. The apparatus includes a sensing unit to sense a surrounding environment of the communication device, a variable element to perform a variable operation according to a voltage or current applied thereto. The apparatus further includes a variable element control unit to control the voltage or current according to the surrounding environment sensed by the sensing unit to cause the variable element to perform the variable operation, and an intelligent periodic structure coupled with the variable element, the intelligent periodic structure being configured to change an operation frequency of the wireless communication device according to the variable operation of the variable element and adjust a radiation pattern direction of the antenna.03-07-2013

Patent applications by Sang Il Kwak, Daejeon KR

Sang Kyu Kwak, Daejeon KR

Patent application numberDescriptionPublished
20100112479Photopolymerization initiator containing unsaturated double bond and oxime ester group and photosensitive resin composition comprising the same - A photopolymerization initiator is provided. The photopolymerization initiator contains at least one unsaturated double bond and at least one oxime ester group in the molecule. The photopolymerization initiator comprises a compound represented by Formula 1 or 2:05-06-2010
20100160477Composition for simultaneously forming two isolated column spacer patterns - A composition for forming column spacers is provided. The composition comprises a radical polymerization inhibitor. The use of the composition enables simultaneous formation of a saturated pattern and a semi-transmissive pattern as column spacer patterns having different shapes, whose difference in thickness is controllable as desired although the sensitivity is slightly reduced, through a slit or semi-transmissive mask by varying the kind and amount of the radical polymerization inhibitor. Further provided are column spacers formed using composition and a liquid crystal display using the column spacers.06-24-2010
20100245732COLOR FILTER SUBSTRATE - A color filter substrate is provided. In the color filter substrate, transparent protective films are formed on respective sub-pixels of a color filter. The color filter substrate has improved electric field characteristics without the need for additional optical or circuit compensation to achieve an improvement in contrast and a reduction in color difference.09-30-2010
20100261815PHOTOACTIVE COMPOUND AND PHOTOSENSITIVE RESIN COMPOSITION COMPRISING THE SAME - A novel photoactive compound is provided. The photoactive compound has a structure represented by Formula 1:10-14-2010
20110269867ALKALI-SOLUBLE POLYMER COMPOUND AND PHOTOSENSITIVE RESIN COMPOSITION USING THE SAME - A novel alkali-soluble polymer compound including a dehydrogenated pimaric acid and/or its isomer as a repeating unit, and a photosensitive resin composition including the alkali-soluble polymer compound as an effective binder matrix are provided. A photosensitive resin composition using the alkali-soluble polymer compound including a dehydrogenated resin acid has excellent photosensitivity and developing characteristics cause a less deformation in a firing process, has excellent elasticity. Thus, the photosensitive resin composition is advantageous for curing various transparent photosensitive materials, in particular, materials of column spacers, an overcoat, a passivation layer, or the like, used for fabricating color filters of an LCD.11-03-2011
20110287366PHOTORESIST COMPOSITION COMPRISING PHOTOINITIATORS, AND TRANSPARENT THIN FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE COMPOSITION - A photoresist composition is provided. The photoresist composition comprises two or more kinds of photoinitiators having different activation wavelengths whose difference is at least 20 nm. The photoresist composition has high sensitivity and forms a pattern whose thickness is easy to control depending on the exposure intensity through a slit or transflective mask. Further provided are a transparent thin film formed using the photoresist composition and a liquid crystal display device comprising the thin film.11-24-2011
20110318692PHOTOACTIVE COMPOUND AND PHOTOSENSITIVE RESIN COMPOSITION CONTAINING THE SAME - The present invention relates to a photoactive compound of a novel structure represented by Chemical Formula 1 below12-29-2011
20120004341ALKALI SOLUBLE RESIN POLYMER AND NEGATIVE-TYPE PHOTOSENSITIVE RESIN COMPOSITION INCLUDING THE SAME - Provided are an alkali soluble binder resin that includes a monomer including an unsaturated double bond, an unsaturated double bond character monomer including a carboxylic acid and an unsaturated double bond character monomer including an allyl group as a repeating unit, in which a molecular weight distribution (Mw/Mn) is in a range of about 2.0 to about 3.5, and a negative-type photosensitive resin composition including the alkali soluble binder resin. Re-solubility, fine-patterned substrate adhesion and dispersion stability may be improved by including the alkali soluble binder resin according to the present invention.01-05-2012
20120156619ACRYLATE-BASED COMPOUNDS AND PHOTOSENSITIVE COMPOSITION COMPRISING THE SAME - The present invention relates to an acrylate-based compound that includes an organic acid having two or more acrylate groups and one or more phenolic acid structures in one molecule, and a photosensitive composition including the same. It is possible to shorten a developing time in a photolithography process without damaging photosensitivity by using the photosensitive composition according to the present invention.06-21-2012
20130244182PHOTOSENSITIVE COMPOSITION COMPRISING AN ACRYLATE COMPOUND - The present invention relates to a photosensitive composition including an acrylate-based compound having an adamantyl structure. It is possible to manufacture an organic thin film that is easily stripped without decreasing the strength of the thin film by using the photosensitive composition.09-19-2013
20140011916THERMALLY CURABLE RESIN COMPOSITION WITH GOOD COATABILITY AND RE-COATABILITY - The present invention relates to a thermally curable binder resin including an epoxy group-containing ethylenic unsaturated monomer and an aqueous monomer including an ethylene oxide group; or an epoxy group-containing ethylenic unsaturated monomer, a compound including an acidic component, and an aqueous monomer including an ethylene oxide group, a thermally curable resin composition including the same, a cured film prepared therefrom, a color filter, and a liquid crystal display device. The thermally curable binder resin of the present invention may significantly enhance the coatability of a cured film forming composition and increase the surface energy of a coated protective film to significantly enhance the recoating properties in subsequent processes after formation of the protective film.01-09-2014
20140065543NEW COMPOUND, PHOTOSENSITIVE COMPOSITION COMPRISING THE SAME AND PHOTOSENSITIVE MATERIAL - The present application relates to a novel compound, a photosensitive composition comprising the same and a photosensitive material.03-06-2014
20140080043SILOXANE-BASED COMPOUND, PHOTOSENSITIVE COMPOSITION COMPRISING THE SAME AND PHOTOSENSITIVE MATERIAL - The present application relates to a siloxane-based compound, a photosensitive composition including the same, and a photosensitive material.03-20-2014

Patent applications by Sang Kyu Kwak, Daejeon KR

Sang-Min Kwak, Daejeon KR

Patent application numberDescriptionPublished
20130314785RESIN COMPOSITION AND OPTICAL FILM FORMED BY USING THE SAME - Provided are a resin composition and an optical film formed by using the same, and more particularly, a resin composition including 85 to 95 parts by weight of a matrix copolymer resin including an alkyl(meth)acrylate-based unit, an acryl-based unit containing a benzene ring, and a (meth)acrylic acid unit, and 5 to 15 parts by weight of a polymer resin having a molecular weight range of 150,000 to 1,000,000 and an optical film formed by using the composition. A resin composition according to the present invention may provide a protective film for a polarizing plate having excellent heat resistance and toughness as well as excellent optical properties, and thus, an optical film formed by using the resin composition of the present invention may be used in information electronic devices such as display devices for various applications.11-28-2013
20140000801METHOD OF PREPARING RESIN COMPOSITION FOR OPTICAL FILM BY USING CONTINUOUS BULK POLYMERIZATION AND METHODS OF PREPARING OPTICAL FILM AND POLARIZING PLATE USING THE RESIN COMPOSITION01-02-2014
20150022878OPTICAL FILM HAVING EXCELLANT UV BLOCKING EFFECT AND POLARIZING PLATE COMPRISING THE SAME - An optical film and a polarizing plate including the same are provided. The optical film includes an acrylic resin having a glass transition temperature of 120° C. or higher and including an alkyl (meth)acrylate-based repeating unit and a styrene-based repeating unit, and a UV absorbent having a 1% thermal decomposition temperature greater than or equal to a temperature 2.5 times that of the glass transition temperature of the acrylic resin.01-22-2015
20150092264OPTICAL FILM EXHIBITING EXCELLENT BLOCKING PROPERTIES FOR ULTRAVIOLET LIGHT AND POLARIZING PLATE INCLUDING THE SAME - There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr04-02-2015
20160054490MULTILAYER OPTICAL FILM, METHOD OF PRODUCING THE SAME AND POLARIZER COMPRISING THE SAME - The present disclosure relates to a multilayer optical film including a first film layer formed of a thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of a triazine-based ultraviolet absorber; a second film layer formed of a thermoplastic acrylic resin composition including 0.1 to 5.0 parts by weight of at least one ultraviolet absorber selected from a group consisting of a triazole-based ultraviolet absorber, a benzophenone-based ultraviolet absorber, an oxanilide-based ultraviolet absorber and a cyanoacrylate-based ultraviolet absorber; and a third film layer formed of the thermoplastic acrylic resin composition including 0.01 to 2.0 parts by weight of the triazine-based ultraviolet absorber, with respect to 100 parts by weight of the thermoplastic acrylic resin composition, a method of manufacturing the same, and a polarizing plate including the same.02-25-2016

Patent applications by Sang-Min Kwak, Daejeon KR

Sang-Woon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20080200362POWDER DETERGENT GRANULE CONTAINING ACIDIC WATER-SOLUBLE POLYMER AND MANUFACTURING METHOD THEREOF - The present invention relates to powder detergent granules that are substantially free of a water-insoluble component such as zeolite or silica, a method for manufacturing the powder detergent granules and a copolymer having various properties useful as a detergent component. The powder detergent granules of the present invention are substantially free of a water-insoluble component, and thus exhibit good solubility and washing performance (stain removal performance) in cold water, do not leave residue after laundry, and reduce the likelihood of a caking phenomenon during manufacture and storage. And, the powder detergent granules of the present invention are substantially free of zeolite or silica that absorbs a liquid component, but are capable of accommodating a considerable amount of liquid surfactant. Further, a copolymer comprising acrylic acid monomer unit and 2-acrylamido-2-methylpropane sulfonic acid monomer unit, an acidic water-soluble polymer of the present invention, is useful as a detergent component in various aspects.08-21-2008
20090181587FUNCTIONAL SHEET FOR DELIVERING LAUNDRY ACTIVES IN LOW-TEMPERATURE WATER - Disclosed are a functional sheet including a first substrate applied or impregnated with an active ingredient, which is to be used in low temperature water at 0° C. to 30° C., wherein the active ingredient is to be physically or chemically adsorbed on a second substrate in the low temperature water, and remain on the second substrate after removal of the low temperature water, as the first substrate, a substrate having a water contact angle of 90° or less is used so that 70% or more of the active ingredient applied or impregnated to the first substrate can be released in the low temperature water at 0° C. to 30° C. within 5 minutes; and another functional sheet including a first substrate applied or impregnated with an active ingredient, which is to be used in low temperature water at 0° C. to 30° C., wherein the active ingredient is to be physically or chemically adsorbed on a second substrate in the low temperature water, and remain on the second substrate after removal of the low temperature water, the functional sheet has light transmittance of 2 to 20%, so that 70% or more of the active ingredient applied or impregnated to the first substrate can be released in the low temperature water at 0° C. to 30° C. within 5 minutes.07-16-2009
20100113325COMPOSITION FOR TEXTILE SOFTENER HAVING LOW TEMPERATURE ACTIVITY AND TEXTILE SOFTENER SHEET COMPRISING THE SAME - The present invention relates to a composition for textile softener comprising a cationic surfactant, the ratio of which C7-C21 alkyl substituents analyzed by HLPC (high pressure liquid chromatography) or GC (gas chromatography) is 0.6 or more, as an effective ingredient, and a sheet for textile softener comprising the same. Since the present composition for textile softener has excellent dissolving and dispersing effect even in low temperature water, the sheet comprising this composition is used at a rinse time during washing procedures to represent excellent anti-static effect and textile softening effect to textiles and clothes.05-06-2010
20100137185POWDER DETERGENT GRANULE CONTAINING ACIDIC WATER-SOLUBLE POLYMER AND MANUFACTURING METHOD THEREOF - The present invention relates to powder detergent granules that are substantially free of a water-insoluble component such as zeolite or silica, a method for manufacturing the powder detergent granules and a copolymer having various properties useful as a detergent component. The powder detergent granules of the present invention are substantially free of a water-insoluble component, and thus exhibit good solubility and washing performance (stain removal performance) in cold water, do not leave residue after laundry, and reduce the likelihood of a caking phenomenon during manufacture and storage. And, the powder detergent granules of the present invention are substantially free of zeolite or silica that absorbs a liquid component, but are capable of accommodating a considerable amount of liquid surfactant. Further, a copolymer comprising acrylic acid monomer unit and 2-acrylamido-2-methylpropane sulfonic acid monomer unit, an acidic water-soluble polymer of the present invention, is useful as a detergent component in various aspects.06-03-2010
20110218136POWDER DETERGENT GRANULE CONTAINING ACIDIC WATER-SOLUBLE POLYMER AND MANUFACTURING METHOD THEREOF - The present invention relates to powder detergent granules that are substantially free of a water-insoluble component such as zeolite or silica, a method for manufacturing the powder detergent granules and a copolymer having various properties useful as a detergent component. The powder detergent granules of the present invention are substantially free of a water-insoluble component, and thus exhibit good solubility and washing performance (stain removal performance) in cold water, do not leave residue after laundry, and reduce the likelihood of a caking phenomenon during manufacture and storage. And, the powder detergent granules of the present invention are substantially free of zeolite or silica that absorbs a liquid component, but are capable of accommodating a considerable amount of liquid surfactant. Further, a copolymer comprising acrylic acid monomer unit and 2-acrylamido-2-methylpropane sulfonic acid monomer unit, an acidic water-soluble polymer of the present invention, is useful as a detergent component in various aspects.09-08-2011
20120309668COMPOSITION FOR TEXTILE SOFTENER HAVING LOW TEMPERATURE ACTIVITY AND TEXTILE SOFTENER SHEET COMPRISING THE SAME - Disclosed is a composition for textile softener containing a cationic surfactant, the ratio of which C7-C21 alkyl substituents analyzed by HLPC (high pressure liquid chromatography) or GC (gas chromatography) is 0.6 or more, as an effective ingredient, a sheet for textile softener including the same, and method of softening a textile using the sheet. Since the composition for textile softener has excellent dissolving and dispersing effect even in low temperature water, the sheet containing this composition is used at a rinse time during washing procedures to represent excellent anti-static effect and textile softening effect to textiles and clothes.12-06-2012
20130184197FUNCTIONAL SHEET FOR DELIVERING LAUNDRY ACTIVES IN LOW-TEMPERATURE WATER - Disclosed is a washing method using a functional sheet, the method comprising; adding the functional sheet to a washing medium at a rinsing step of washing process; wherein the washing medium contains a rinsing water of 0° C. to 30° C. and a second substrate; wherein the functional sheet comprises; a first substrate; and an active ingredient applied on or impregnated into the first substrate, wherein the active ingredient has at least one material selected from the group consisting of a softener, an aromatic agent, an antistatic agent, a stabilizer, a colorant, a preservative, an optical brightener, and a bleaching agent; wherein the active ingredient, which is released from the first substrate and dispersed into the rinsing water, is to be physically or chemically adsorbed onto the second substrate in the rinsing water, and remains on the second substrate after removal of the rinsing water.07-18-2013

Patent applications by Sang-Woon Kwak, Daejeon KR

Seung-Yeon Kwak, Daejeon KR

Patent application numberDescriptionPublished
20120153229Fluorescent Dye-Siloxane Hybrid Resin - The present invention provides a fluorescent dye-silane hybrid resin manufactured by polycondensing an alkoxysilane bonded with a fluorescent dye with an organo-silane. More particularly, the present invention provides a fluorescent dye-siloxane hybrid resin that is manufactured by reacting a fluorescent dye having one or more functional groups with an alkoxysilane having an organic functional group to form an alkoxysilane bonded with the fluorescent dye and then polycondensing the alkoxysilane bonded with a fluorescent dye with an organo-silanediol and an organo-alkoxysilane having a thermocurable or ultraviolet-curable functional group without water. The fluorescent dye-silane hybrid resin has excellent thermostability, photostability, fluorescence characteristics, and processibility.06-21-2012

Tae-Jin Kwak, Daejeon KR

Patent application numberDescriptionPublished
20130155502AUTOSTEREOSCOPIC 3-DIMENSIONAL (3D) DISPLAY APPARATUS AND DISPLAY METHOD THEREOF - There are provided an autostereoscopic 3-Dimensional (3D) display apparatus and a display method thereof. In the autostereoscopic 3D display apparatus, a 3D display is disposed in a standing position, and a reflection structure reflects light emitted from the screen of the 3D display to provide a 3D image in a 3D space. Accordingly, a deflection of the 3D display is reduced so that a 3D image pattern having no distortion is formed.06-20-2013

Yoon Keun Kwak, Daejeon KR

Patent application numberDescriptionPublished
20110155683CRANE SPREADER AND METHOD FOR AUTOMATICALLY LANDING THE SAME - A crane spreader for use in lifting a container includes an attachment unit, a head block, a frame unit, a position adjustment unit and a fixation unit. The attachment unit detachably attaches the crane spreader to an upper surface of the container. The head block has a pulley connected to a trolley of a crane through a cable and coupled to the attachment unit to restrict a horizontal movement the attachment unit with respect to the head block. The frame unit is supported by the head block to be horizontally movable with respect to the head block, the frame unit being disposed below the head block with a gap therebetween. The position adjustment unit aligns the frame unit with the container by displacing the frame unit with respect to the attachment unit. The fixation unit engages the container with the frame unit.06-30-2011

Yun Keun Kwak, Daejeon KR

Patent application numberDescriptionPublished
20110239382ROBOT CLEANER - A robot cleaner includes wheels mounted at a lower side of a main body of the robot cleaner to allow for traveling of the main body, and wire winding prevention members mounted at the lower side of the main body, each wire winding prevention member having one end extending to be contactable with a rim of the corresponding wheel. The wire winding prevention member is preferably a torsion spring.10-06-2011
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