Choi, Daejeon-Si
Bum Suk Choi, Daejeon-Si KR
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20130088515 | METHOD OF PROVIDING AUGMENTED CONTENTS AND APPARATUS FOR PERFORMING THE SAME, METHOD OF REGISTERING AUGMENTED CONTENTS AND APPARATUS FOR PERFORMING THE SAME, SYSTEM FOR PROVIDING TARGETING AUGMENTED CONTENTS - The system for providing targeting augmented contents includes: an augmented metadata generation apparatus that generates augmented metadata designating specific space and time of broadcast contents as an augmented area; a broadcast content providing apparatus that transmits the augmented metadata to a first broadcast terminal apparatus and transmits the augmented metadata and the broadcast contents to a second broadcast terminal apparatus; a first broadcast terminal apparatus that transmits augmented contents displayed in the augmented area in which the augmented metadata are designated to the augmented content providing apparatus; an augmented content providing apparatus that transmits the augmented contents to a second broadcast terminal apparatus; and a second broadcast terminal apparatus that receives the broadcast contents and the augmented metadata from the broadcast content providing apparatus and receives the augmented contents from the augmented content providing apparatus based on the augmented metadata. | 04-11-2013 |
20130091517 | METHOD AND APPARATUS OF PROVIDING BROADCAST CONTENT AND METADATA FOR AUGMENTED BROADCASTING, METHOD AND APPARATUS OF PROVIDING AUGMENTING CONTENT, AND METHOD AND APPARATUS OF RECEIVING AUGMENTED BROADCAST CONTENT - In a method of receiving augmenting content, broadcast content and augmenting content are received from a broadcast content providing apparatus, metadata related to the broadcast content is interpreted to check an indicator indicating such that augmenting content are applicable, and augmenting content are requested from an augmenting content providing apparatus by using access information of the augmenting content providing apparatus. Thereafter, augmenting content are received from the augmenting content providing apparatus, and augmenting content received in the augmenting content receiving step are synchronized with the broadcast content and output to a temporal/spatial region corresponding to display region information included in the metadata or the display region information is transmitted to a separate output device. Thus, a viewer can conveniently receive area information-based augmenting content in the form of large capacity multimedia including a graphic image or video without having to perform searching. | 04-11-2013 |
20130104165 | METHOD AND APPARATUS FOR RECEIVING AUGMENTED BROADCASTING CONTENT, METHOD AND APPARATUS FOR PROVIDING AUGMENTED CONTENT, AND SYSTEM FOR PROVIDING AUGMENTED CONTENT - The system includes a metadata generation apparatus for generating metadata to designate a specific space and time in and on which a speech balloon or a music book will be displayed on broadcasting content, a multiplexing broadcasting server for multiplexing the metadata received from the metadata generation apparatus and the broadcasting content and sending the multiplexed result to a reception apparatus, an augmented content providing apparatus for sending the speech balloon suitable for speech included in the broadcasting content or the music book suitable for music included in the broadcasting content to the reception apparatus, and the reception apparatus for displaying the broadcasting content and displaying the augmented content in a specific space and time of the broadcasting content based on the metadata. | 04-25-2013 |
20130117781 | MEDIA CONTENT TRANSMISSION METHOD AND APPARATUS, AND RECEPTION METHOD AND APPARATUS FOR PROVIDING AUGMENTING MEDIA CONTENT USING GRAPHIC OBJECT - Disclosed is a media content reception method for providing augmenting media contents using graphic objects, including: receiving metadata including information representing each event of any one of broadcast contents or moving picture contents, and any one of the broadcast contents or the moving picture contents and graphic object related information associated with events, the events including at least one of a specific scene, a specific situation, and a specific phenomenon of any one of the broadcast contents or the moving picture contents; analyzing the received metadata; designating the graphic objects to correspond to each event within any one of the broadcast contents or the moving picture contents based on the analyzed metadata; and displaying the designated graphic objects to meet each event at the time of playing any one of the broadcast contents or the moving picture contents. | 05-09-2013 |
20130117798 | AUGMENTING CONTENT GENERATING APPARATUS AND METHOD, AUGMENTED BROADCASTING TRANSMISSION APPARATUS AND METHOD, AND AUGMENTED BROADCASTING RECEPTION APPARATUS AND METHOD - Disclosed are augmenting content generating apparatus and method, augmented broadcasting transmission apparatus and method, and augmented broadcasting reception apparatus: An augmented broadcasting transmission apparatus includes: a broadcasting content generation unit that generates broadcasting content; | 05-09-2013 |
20130205334 | METHOD AND APPARATUS FOR PROVIDING SUPPLEMENTARY INFORMATION ABOUT CONTENT IN BROADCASTING SYSTEM - A method and apparatus for providing supplementary information about content in a broadcasting system are provided. A method of a reception terminal providing supplementary information about content includes receiving content and metadata, extracting an indicator for indicating whether supplementary information about the content exists or not from the metadata, determining whether the supplementary information about the content exists or not based on the indicator, outputting the supplementary information about an appearance element of the content in association with the content based on the metadata, accessing a server for providing the supplementary information about the to appearance element, based on the metadata when an instruction to download the supplementary information about the appearance element is received, and downloading the supplementary information about the appearance element from the server and storing the downloaded supplementary information. | 08-08-2013 |
20130254798 | AUGMENTED BROADCASTING STREAM TRANSMISSION DEVICE AND METHOD, AND AUGMENTED BROADCASTING SERVICE PROVIDING DEVICE AND METHOD - An augmented broadcasting stream transmission device and method and an augmented broadcasting service providing device and method capable of ensuring that augmented broadcasting metadata arrive at a receive terminal in a time more rapid as compared to a corresponding video frame by a predetermined time are provided. | 09-26-2013 |
20130290995 | APPARATUS AND METHOD FOR PROCESSING AUGMENTED BROADCAST CONTENT USING ANALYSIS ALGORITHM BASED ON REFERENCE SIGNAL - An apparatus and method for processing augmented broadcast content. The apparatus includes: a broadcast content receiving unit configured to receive broadcast content and a first reference signal from a broadcast content provider, the first reference signal including information used to recognize a target object in the broadcast content and composite the broadcast content and augmented content associated with the target object; an object identifying unit configured to identify the target object in the broadcast content by analyzing the broadcast content using an image or sound analysis algorithm with reference to the first reference signal; an augmented content acquiring unit configured to acquire the augmented content associated with the target object; and an augmented content compositing unit configured to composite the acquired augmented content into an augmentation region determined based on the first reference signal. | 10-31-2013 |
20130291023 | METHOD AND APPARATUS FOR PROCESSING AUGMENTED BROADCAST CONTENT USING AUGMENTATION REGION INFORMATION - Provided is a method for processing augmented broadcast content, and the method includes receiving, from a broadcast content provider, broadcast content and augmentation region information required to composite augmented content to an augmentation region in the broadcast content; receiving, from a user input device, selection information necessary to select one out of a plurality of augmented content providers; generating an augmented content request message based on the augmentation region information, and transmitting the augmentation content request message to an augmented content provider selected based on the selection information; receiving the augmented content from the augmented content provider; and compositing the augmented content to the augmentation region in the broadcast content by using the augmentation region information. | 10-31-2013 |
20140059630 | APPARATUSES FOR PROVIDING AND RECEIVING AUGMENTED BROADCASTING SERVICE IN HYBRID BROADCASTING ENVIRONMENT - An apparatus for providing an augmented broadcasting service and an apparatus for receiving the augmented broadcasting service in a hybrid broadcasting environment. The apparatus for providing the augmented broadcasting service includes: a real-time data provider configured to provide real-time data through a first transmission network; an augmented content provider configured to provide augmented content through a second transmission network, wherein the augmented content is to be synchronized with the real-time data; and a multiplexer configured to multiplex the real-time data, the augmented content metadata and timing information for synchronization between the real-time data and the augmented content metadata, and output resulting data. | 02-27-2014 |
20140150018 | APPARATUS FOR RECEIVING AUGMENTED BROADCAST, METHOD OF RECEIVING AUGMENTED BROADCAST CONTENT USING THE SAME, AND SYSTEM FOR PROVIDING AUGMENTED BROADCAST CONTENT - An apparatus for receiving augmented broadcast, a method of receiving augmented broadcast content using the same, and a system for providing augmented broadcast content are provided. The method of receiving augmented broadcast content may include receiving a broadcast program and metadata for augmented broadcast implementation for the broadcast program that are transmitted over a broadcasting network, requesting an augmented broadcast content providing server providing augmented broadcast content associated with the broadcast program to provide the augmented broadcast content associated with the broadcast program with reference to the received metadata, and receiving the augmented broadcast content provided by the augmented broadcast content providing server according to the request. | 05-29-2014 |
20140214211 | OUTPUTACTUATOR NODE, MPEG TERMINAL WITH OUTPUTACTUATOR NODE, AND METHOD FOR CONTROLLING ACTUATOR USING THE OUTPUTACTUATOR NODE - An OutputActuator node, a Moving Picture Experts Group (MPEG) terminal, and a method for controlling an actuator using the OutputActuator node. The OutputActuator node includes an enabled field indicating whether the OutputActuator node is activated or not; a url field designating an actuator to which a command is delivered for control of the actuator; and an eventName field containing a command list for operating the designated actuator. | 07-31-2014 |
20150304740 | BROADCASTER APPARATUS, CONTENT OPERATOR APPARATUS, AND RECEIVING TERMINAL FOR AUGMENTED BROADCASTING SERVICE, AND AUGMENTED BROADCASTING SERVICE METHOD - A broadcaster apparatus, content operator apparatus, and receiving terminal for augmented broadcasting service, and an augmented broadcasting service method. A service user may select a predetermined content operator among content operators that provide augmented content in an environment for providing an augmented broadcasting service according to an exemplary embodiment. | 10-22-2015 |
Byung-Oh Choi, Daejeon-Si KR
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20090288567 | METHOD AND APPARATUS FOR MANUFACTURING ELECTRONIC DEVICE USING ROLL-TO-ROLL ROTARY PRESSING PROCESS - The present invention discloses an apparatus for manufacturing electronic devices using a roll-to-roll rotary pressing process, comprising a winding roll around which flexible printing paper is wound; a plurality of printing units arranged in a straight line; at least one coating unit; a rewinding roll to rewind the printing paper when printing has been completed; a plurality of guide rolls arranged between the winding roll and the rewinding roll, thus guiding the printing paper; a plurality of drying units, each drying unit being provided on a printing paper-path between the printing unit and the adjacent guide roll to dry ink transferred to the printing paper or on a printing paper-path between the coating unit and the adjacent guide roll to dry the printing paper on which coating agent is supplied; and tension regulating units installed around the winding roll and the rewinding roll, respectively, for regulating tension of the printing paper. | 11-26-2009 |
Chang-Ho Choi, Daejeon-Si KR
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20120163165 | APPARATUS AND METHOD FOR PACKET TRANSPORT SERVICE BASED ON MULTI PROTOCOL LABEL SWITCHING-TRANSPORT PROFILE (MPLS-TP) NETWORK - There is provided a packet processing apparatus for transmitting packets received from a plurality of networks through a Label Switched Path (LSP), the packet processing apparatus including: a packet classifier to classify a received packet to a control packet or a normal packet based on port information included in field information of the received packet, and to decide, if the received packet is a normal packet, a service type for transmitting the normal packet according to whether the normal packet is a reception packet or a transmission packet; and a packet processor to acquire LSP condition information or address information from the field information of the normal packet, and to transmit the received packet and update the header or address information of the received packet, according to the service type decided by the packet classifier, with reference to the LSP condition information or the address information. | 06-28-2012 |
20130287027 | APPARATUS AND METHOD FOR PROCESSING PACKET IN MPLS-TP NETWORK - An apparatus and method for processing a packet in a multi-protocol label switching-transport profile (MPLS-TP) network are provided. In the method of processing a packet, a packet transport layer (PTL) index and a layer stack (LS) or multiple label pop (MPOP) loopback header are used, and it is possible to remove a size limitation on lookup results of a lookup table when multiple labels are stacked, and solve the problem of having to extract all labels as label keys regardless of label operations upon an incoming label map (ILM) table lookup. | 10-31-2013 |
Dong Hyeok Choi, Daejeon-Si KR
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20140221193 | FLUIDIZED BED WATER GAS SHIFT CATALYST - The present invention relates to an aqueous gas-converting catalyst composition comprising: an active component; a support; an inorganic binder; at least one accelerator selected from the group consisting of cobalt oxide, molybdenum oxide, nickel oxide, calcium oxide, barium oxide, strontium oxide, magnesium oxide, zirconium oxide, manganese oxide and barium titania; and at least one stabilizer selected from the group consisting of magnesium oxide, zirconium oxide, stabilized zirconia, and hydrotalcite. The catalyst according to the present invention can effectively capture and separate carbon dioxide due to the excellent physical properties thereof such as packing density and abrasion resistance, and high CO conversion. Also, according to the present invention, mass production is facilitated by applying a spraying technique, and overall costs are lowered because of high yield. Thus, the present invention can be applied as a low cost pre-combustion CO2 capturing technique to an integrated gasification combined cycle, fuel cells, coal liquefaction, compound production, and the like. | 08-07-2014 |
Dong Joon Choi, Daejeon-Si KR
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20120124628 | METHOD FOR REQUESTING TRANSMISSION OF BROADCAST PROGRAM AND METHOD FOR TRANSMITTING BROADCAST PROGRAM - A mobile terminal constituting a multi-screen service environment in a switched digital video (SDV)-based video transmission system structure serves like a remote controller of a reception terminal having a large screen such as a TV. A broadcast channel viewed in the mobile terminal can be shared with the large screen of the TV or the like, and a program can be directly viewed in the large screen of the TV or the like based on program guide information received by the mobile terminal. | 05-17-2012 |
20120148249 | CABLE NETWORK USING GIGA BAND FREQUENCY - The present invention relates to a cable network using the frequency of a giga band. The optical signal transmission apparatus includes an optical transmission/reception unit converting received RF signals into RF optical signals and transmitting the RF optical signals, an optical line terminal converting received digital signals into digital optical signals and transmitting the digital optical signals, and a multiplexer receiving the optical signals from the optical transmission/reception unit and the optical line terminal and multiplexing the received optical signals. | 06-14-2012 |
20120151349 | APPARATUS AND METHOD OF MAN-MACHINE INTERFACE FOR INVISIBLE USER - Man-machine interface apparatus and method for an user are provided. The man-machine interface apparatus includes: a touch recognizing unit recognizing a touch by the invisible user; and a voice notifying unit notifying the invisible user of a name of a menu or application service corresponding to the touched position through a voice. | 06-14-2012 |
20120155878 | TRANSMISSION APPARATUS AND TRANSMISSION METHOD FOR SUBSCRIBER NETWORK IN CABLE NETWORK - Provided are a transmission apparatus and a transmission method for a subscriber network in a cable network. A passive optical network (GPON) receiver receives data packets through a fiber line using a plurality of optical wavelengths from a head end. A micro cable modem termination system (CMTS) converts the data packets into a data over cable service interface specification (DOCSIS)-based DOCSIS frame and transmits the DOCSIS frame to at least one subscriber device through a coaxial line. | 06-21-2012 |
20120195257 | METHOD AND APPARATUS FOR TRANSMITTING DATA IN CABLE NETWORK - Disclosed herein are a method and an apparatus for transmitting data in a cable network. The transmitter generates upper layer data including multiplexed data of a plurality of subscriber terminals, dividing the upper layer data into a plurality of segment data, performs channel coding on each segment data, extracts information on at least one subscriber terminal included in each segment data to generate subscriber identification signals, inserts the subscriber identification signals into each channel-coded segment data, and modulates and transmits each segment data into which the subscriber identification signals are inserted. | 08-02-2012 |
20130174209 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING UHD BROADCASTING SERVICE IN DIGITAL BROADCASTING SYSTEM - A method and apparatus for transmitting and receiving Ultra High Definition (UHD) broadcasting service in a digital broadcasting system are provided. The method includes receiving a TS through a transport channel, determining whether or not the TS includes information about an association relation with other TSs, analyzing the information about the association relation from the TS, determining whether or not the TS includes information about a program provided in association with the other TSs based on the information about the association relation, extracting the information about the program from the TS, and obtaining the program based on the information about the program. In accordance with the present invention, high definition broadcasting service can be provided because a broadcasting program having a great transmission bandwidth can be transmitted and received in a digital broadcasting system. | 07-04-2013 |
20140007168 | METHOD AND APPARATUS FOR EXTENDING RECEIVING RANGE OF BROADCAST PROGRAM | 01-02-2014 |
Eun-Chang Choi, Daejeon-Si KR
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20100265923 | REAL-TIME WIRELESS COMMUNICATION METHOD FOR GUARANTEEING QUALITY OF SERVICE IN WIRELESS PERSONAL AREA NETWORK - Provided is a real-time wireless communication method for guaranteeing quality of service in a wireless personal area network (WPAN). When real-time data transmitted in a time slot of a current superframe has an error, a terminal, which was designated as a coordinator from among a plurality of terminals in a WPAN, allocates a time slot for retransmitting the real-time data to a next superframe and retransmits the real-time data in the allocated time slot of the next superframe. Therefore, quality of a real-time communication service in a WPAN can be guaranteed. | 10-21-2010 |
20130135532 | APPARATUS AND METHOD FOR COMMUNICATING WIRELESS VIDEOBASED ON ZIGBEE NETWORK PROTOCOL - A method and an apparatus for communicating wireless videos based on ZigBee network are provided. The method includes: receiving, a video transmitting apparatus, a video transmitting request from a user through a button input apparatus; receiving videos from a video input apparatus when an interrupt is generated and storing the received videos in a transmitting buffer, by setting a timer; and when data exceeding a predetermined capacity of the transmitting buffer are stored in the transmitting buffer, splitting the videos stored in the transmitting buffer into ZigBee packets and transmitting the split videos to a video receiving apparatus. According to the present invention, the video transmitting apparatus and the video receiving apparatus can control a power supply for peripheral apparatuses such as a video input apparatus, a video output apparatus, by a message, if necessary, and can minimize power consumed by the peripheral apparatuses. | 05-30-2013 |
Eun-Jung Choi, Daejeon-Si KR
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20140046016 | RESIN COMPOSITION FOR OPTICAL FILM AND OPTICAL FILM USING THE SAME - The present invention relates to a resin composition for an optical film comprising a copolymer which includes an alkyl (meth)acrylate unit, a (meth)acrylate unit having a benzene ring, and a (meth)acrylic acid unit, wherein a content of a residual monomer is less than 2000 ppm in the resin composition and an optical film using the same. | 02-13-2014 |
Eun Young Choi, Daejeon-Si KR
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20120163367 | APPARATUS AND METHOD FOR ACQUIRING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - An apparatus for acquiring synchronization using a signal having repetition patterns is provided. The apparatus includes: a signal reception unit for receiving signal streams transmitted in the repetition patterns, a synchronization point tracking unit for calculating, during one period in which the signal streams are repeated in the repetition patterns, an add-sum of the signal streams, a sub-sum of the signal streams and an add-sub-sum which is a difference between the add-sum and the sub-sum, and for tracking an estimated synchronization point by comparing the sub-sum and the add-sub-sum, and a synchronization acquisition unit for acquiring, based on the estimated synchronization point, a synchronization point by searching for a point where the repetition of some of the signal streams is ended or a point where new signal streams having different characteristics from the signal streams are started. | 06-28-2012 |
20120164957 | APPARATUS AND METHOD FOR ACQUIRING SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM - An apparatus for acquiring synchronization in a multi-channel system includes a signal reception unit for receiving information about repetition patterns of signal streams for each channel and receiving the signal streams and data from the channel, an estimated synchronization point tracking unit for determining a estimated synchronization point for the channel from a point of time where the repetition patterns are ended by tracking a period where the signal streams are repeated based on the repetition patterns, and a synchronization acquisition unit for searching, based on the estimated synchronization point related to the channel, for a point where the repetition of the signal stream is ended or a point where new signal streams are started and acquiring a synchronization point based on the point. | 06-28-2012 |
Hae Chul Choi, Daejeon-Si KR
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20130243089 | DEVICE FOR ENCODING ULTRA-HIGH DEFINITION IMAGE AND METHOD THEREOF, AND DECODING DEVICE AND METHOD THEREOF - Provided are an encoding device using predictive coding in a screen and a method thereof, and a decoding device and a method thereof. The encoding device is capable of generating a prediction block of a current block according to one of methods for generating a plurality of predetermined prediction blocks, and outputting at least one of encoding information and differential blocks as bitstream by entropy encoding according to whether differential blocks are encoded or not. | 09-19-2013 |
20130322535 | METHOD FOR ENCODING AND DECODING IMAGES USING PLURALITY OF REFERENCE IMAGES AND DEVICE USING METHOD - Disclosed are a method for encoding and decoding images using a plurality of reference images and a device using the method. The decoding method comprises the steps of: decoding predictive direction information; and decoding reference picture index information on the basis of said predictive direction information. Thus, the invention can increase an encoding efficiency by reducing the number of reference picture indexes. | 12-05-2013 |
Hong Taek Choi, Daejeon-Si KR
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20100168938 | METHOD FOR IMPROVING MANEUVERABILITY AND CONTROLLABILITY BY SIMULTANEOUSLY APPLYING BOTH REACTION WHEEL-BASED ATTITUDE CONTROLLER AND THRUSTER-BASED ATTITUDE CONTROLLER - Provided are an attitude control system and method of a spacecraft of an artificial satellite that may enhance a maneuverability and a controllability by simultaneously applying a reaction wheel and a thruster among drive units used to maneuver an attitude of the spacecraft of the artificial satellite. The attitude control system may include: a thruster-based attitude controller which control firing time of thrusters mounted on the spacecraft; and a reaction wheel-based attitude controller controlling driving of a reaction wheel mounted on the spacecraft. The spacecraft may include a plurality of reaction wheels. When a defect occurs in the spacecraft due to a partial malfunction of the reaction wheels, an attitude maneuverability of the spacecraft may be corrected by simultaneously applying the thruster-based attitude controller and the reaction wheel-based attitude controller. | 07-01-2010 |
Hyun Kyun Choi, Daejeon-Si KR
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20150336576 | UNMANNED VEHICLE DRIVING APPARATUS AND METHOD FOR OBSTACLE AVOIDANCE - An unmanned vehicle driving apparatus which allows obstacle avoidance and the method of it is commenced. The unmanned vehicle driving apparatus according to an exemplary embodiment include: a routing part which generates or receives a vehicle's fundamental driving route and generates a moved-driving route by adding or subtracting a route changing value to the fundamental driving route to avoid obstacles while driving; an obstacle detecting part which detects obstacles while driving; and a route driving part which drives the vehicle on the fundamental driving route and when an obstacle is detected, drives the vehicle on the moved-driving route to avoid it. | 11-26-2015 |
In Kyeong Choi, Daejeon-Si KR
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20130266054 | METHOD AND APPARATUS FOR ALLOCATING TRANSMISSION POWER IN MULTI INPUT MULTI OUTPUT SYSTEM - A method and apparatus for allocating transmission power in a transmission terminal having at least one antenna of a multi-input multi-output (MIMO) system are provided. The method includes: measuring inter-stream interference of a plurality of streams; measuring inter-user interference of a plurality of users; and determining the transmission power based on the inter-stream interference and the inter-user interference, wherein the transmission power is determined using an iterative water-filling algorithm in which the Karush-Kuhn-Tucker (KKT) system is iteratively applied to all of the plurality of streams and all of the plurality of users. According to the present invention, several receive antennas are mounted in the MIMO system, thereby making it possible to receive multiple streams. In addition, when the multiple streams are received, transmission power may be allocated to each transmission stream. | 10-10-2013 |
In-Sang Choi, Daejeon-Si KR
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20090129282 | Method and apparatus for measuring quality of VoIP call - Provided are a method and an apparatus for periodically measuring speech quality in a voice over Internet protocol (VoIP) terminal while a VoIP call between VoIP terminals is in progress. The method comprises: receiving summary information regarding traffic sent from an opposite VoIP terminal; and evaluating speech quality by comparing the summary information with actually received information regarding the traffic sent from the opposite VoIP. Accordingly, each VoIP terminal can precisely evaluate the speech quality periodically and send the evaluation result to each other. | 05-21-2009 |
In-Sung Choi, Daejeon-Si KR
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20120068161 | METHOD FOR FORMING GRAPHENE USING LASER BEAM, GRAPHENE SEMICONDUCTOR MANUFACTURED BY THE SAME, AND GRAPHENE TRANSISTOR HAVING GRAPHENE SEMICONDUCTOR - A method for forming graphene includes introducing a substrate and a carbon-containing reactant source into a chamber, and radiating a laser beam onto the substrate to decompose the carbon-containing reactant source and form graphene over the substrate using carbon atoms generated by decomposition of the carbon-containing reactant source. A carbon-containing gas (methane) decomposes upon radiation of a laser beam. The carbon-containing gas has a decomposition rate on the order of femtoseconds and the laser beam has a pulse on the order of nanoseconds or more. The graphene is grown in a single layer along the surface of the substrate. Then, the graphene is selectively patterned using a laser beam to form a desired pattern. | 03-22-2012 |
Jae-Ick Choi, Daejeon-Si KR
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20100134897 | PROJECTING TYPE HYPER-LENS AND METHOD OF MANUFACTURING THE SAME - Disclosed are a projecting type hyper-lens and a method of manufacturing the same. The projecting type hyper-lens includes a main lens layer and a substrate layer. A front surface of the main lens layer is recessed. The substrate layer supports the main lens layer. A front central portion of the main lens layer protrudes beyond a surface of the substrate layer. The projecting type hyper-lens allows an object to move towards a front surface of the hyper-lens until a distance between the front surface of the hyper-lens and the object is smaller than a half-wavelength of light, and thus images an object smaller than a half-wavelength of used light. Evanescent waves scattered from an object is used in a manner convenient to a user. | 06-03-2010 |
20110133849 | LOW PHASE NOISE VOLTAGE-CONTROLLED OSCILLATOR (VCO) USING HIGH QUALITY FACTOR METAMATERIAL TRANSMISSION LINES - A voltage-controlled oscillator (VCO), specifically, a low phase noise VCO using metamaterial transmission lines including a signal plane on which transmission lines are etched in an interdigital fashion is provided. Though high quality resonators based on a metamaterial structure, improvement of the phase noise of the VCO and circuit miniaturization are achieved. | 06-09-2011 |
20110148550 | METAMATERIAL TRANSMISSION LINE APPARATUS AND METHOD OF IMPLEMENTING THE SAME - A metamaterial transmission line for transmitting an electromagnetic wave. The metamaterial transmission line may include a substrate including a substrate configured to include a an upper portion and a lower portion on which a ground plane is formed, a signal line configured to be formed on the substrate, and a defected ground structure configured to include an etched region and two metal portions, wherein the etched region is generated by etching a part of the ground plane and the metal portions extend from the signal line and are disposed on the etched region. | 06-23-2011 |
20120189078 | DUAL POLARIZATION ANTENNA AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL USING THE SAME - The present invention relates to a general active array antenna apparatus capable of environmentally and temporally controlling radio frequency (RF) polarization resource necessary for wireless communication in order to improve communication quality and increase communication capacity. The antenna according to the present invention has a form of an active array antenna element, wherein each active array antenna element has a structure in which it may generate orthogonal dual polarizations and includes two input terminals and output terminals. An end orthogonal dual polarization antenna is connected to a polarization control apparatus that may process analog or digital signals, and the polarization control apparatus is controlled by or communicate with an antenna main controlling apparatus performing a polarization control algorithm. Ultimately, an object of this antenna apparatus is to improve communication quality and increase communication capacity. | 07-26-2012 |
20120256703 | BANDPASS FILTER AND ELECTRONIC DEVICE - A bandpass filter includes resonator coupling line on which a plurality of composite right/left-handed (CRLH) resonators are disposed. The plurality of CRLH resonators are inductively coupled with each other. The design variables can be increased through inductive coupling in the resonance period. Also, the skirt characteristics and the isolation can be improved. | 10-11-2012 |
Jae Seok Choi, Daejeon-Si KR
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20120082656 | COMPOSITION COMPRISING THE PURIFIED EXTRACT OF BEE VENOM FOR PREVENTING AND TREATING DEGENERATIVE BRAIN DISEASE - The present invention relates to a composition comprising the purified extract of bee venom for preventing and treating degenerative brain diseases and the use thereby. The purified extract of bee venom shows potent inhibitory effect on microglial cell activation and abnormal circling behavior using by animal model of degenerative brain disease as well as potent cell-protective activity therefore, it can be useful in treating and preventing the degenerative brain disease as a medicament. | 04-05-2012 |
Jang-Sup Choi, Daejeon-Si KR
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20120104177 | SHOCKLESS SEPARATION DEVICE FOR SPACE APPLICATION - Provided is a shockless separation device for a space application configured to fix a deployment part to a satellite while launching the satellite, and shocklessly separate the deployment part from the satellite when the satellite enters its orbit in space. The shockless separation device includes a fastening projection, a fastening recess part and a heating part. The fastening projection part is provided in the deployment part. The fastening recess part is provided in the satellite, and formed of a shape-memory alloy such that the fastening projection part is inserted into the fastening recess part to be fixed before heating, and when the fastening recess part is heated to a transformation temperature or more, the inside of the fastening recess part is recovered to be expanded to separate the fastening projection. The heating part is controlled to heat the fastening recess part when the satellite enters its orbit in space. | 05-03-2012 |
Jang Young Choi, Daejeon-Si KR
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20160069336 | COMPRESSOR AND POWER GENERATING SYSTEM AND METHOD OF USING THE SAME - The present invention relates to a compressor having a cylinder block having a center bore piercedly formed at the center thereof and cylinder bores piercedly formed around the center bore, a front housing and a rear housing mounted on both ends of the cylinder block, a driving shaft rotatably passing through the front housing and the center bore, and pistons linearly reciprocating in the cylinder bores with the power received from the driving shaft to compress a refrigerant. The compressor includes a permanent magnet disposed on either of the pistons or the cylinder block and coil parts provided to the other part, wherein power generation is conducted by means of the electromagnetic induction produced by the motions of the pistons. | 03-10-2016 |
Jeong Dan Choi, Daejeon-Si KR
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20150336576 | UNMANNED VEHICLE DRIVING APPARATUS AND METHOD FOR OBSTACLE AVOIDANCE - An unmanned vehicle driving apparatus which allows obstacle avoidance and the method of it is commenced. The unmanned vehicle driving apparatus according to an exemplary embodiment include: a routing part which generates or receives a vehicle's fundamental driving route and generates a moved-driving route by adding or subtracting a route changing value to the fundamental driving route to avoid obstacles while driving; an obstacle detecting part which detects obstacles while driving; and a route driving part which drives the vehicle on the fundamental driving route and when an obstacle is detected, drives the vehicle on the moved-driving route to avoid it. | 11-26-2015 |
Jeong-Min Choi, Daejeon-Si KR
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20140125926 | RETARDATION FILM, MANUFACTURING METHOD THEREOF, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME - There are provided a retardation film, a manufacturing method thereof, and a liquid crystal display device including the same. The retardation film includes 1) an acrylic film, 2) a coating layer of a negative C-type material, and 3) a primer layer including a copolymer containing an aromatic vinyl-based unit and a maleic acid-based unit, provided between the acrylic film and the coating layer of the negative C-type material. The retardation film may be used in an in-plane switching mode liquid crystal display device. | 05-08-2014 |
20140128546 | RESIN COMPOSITION AND OPTICAL COMPENSATION FILM FORMED USING THE SAME - There are provided a resin composition and an optical compensation film formed using the same, and more particularly, to a resin composition comprising (a) alkyl (meth)acrylate units, (b) styrene units, (c) 3 to 6 element heterocyclic units substituted with at least one carbonyl group and (d) vinyl cyanide units, and an optical film formed using the resin composition. Further, a resin composition according to the present invention can provide an optical film having excellent optical properties and superior optical transparency, less haze and superior mechanical strength and heat resistance simultaneously. Therefore, an optical film formed using a resin composition of the present invention can be used in various applications, e.g., electronic information devices such as display devices. Particularly, the optical film is suitable for a compensation film used in the IPS mode. | 05-08-2014 |
Jeong Woon Choi, Daejeon-Si KR
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20100150349 | METHOD AND SYSTEM FOR PERFORMING QUANTUM BIT COMMITMENT PROTOCOL - A method and system for performing a quantum bit commitment protocol is provided. The method of performing a quantum bit commitment protocol to send bit information from a first party to a second party includes a pre-commit phase to randomly select and send, by the second party, a quantum state to the first party; a commit phase to perform, by the first party, a unitary transformation on the quantum state to combine the bit information with the quantum state and send the unitary-transformed quantum state to the second party; a hold phase to hold the unitary-transformed quantum state for a predetermined time period; and a reveal phase to provide, by the first party, information about the unitary transformation to the second party to open the bit information to the second party. The reveal phase may include a verification process to check if the opened bit information matches the bit information committed in the commit phase. For example, the verification process may be performed by checking if a quantum state obtained by performing an inverse unitary transformation of the unitary-transformed quantum state matches the quantum state selected in the pre-commit phase. | 06-17-2010 |
20130020393 | APPARATUS AND METHOD FOR DYNAMIC MULTIDIMENSIONAL CODES WITH TIME AND VISUAL RECOGNITION INFORMATION - A dynamic multi-dimensional code generation and recognition apparatus in which time information and visual recognition information are combined, and a method thereof are provided. According to the present invention, a dynamic multi-dimensional code or a time-variant code including visual recognition information which is associated with source information and changed over time is provided. Accordingly, users may easily ascertain existence of the multi-dimensional code and intended contents of the source information. | 01-24-2013 |
Jin Kyu Choi, Daejeon-Si KR
Patent application number | Description | Published |
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20160119051 | MULTI-HOP RELAY MARITIME COMMUNICATION APPARATUS - A multi-hop relay maritime communication apparatus installed in a ship is disclosed. The maritime communication apparatus includes a first access module configured to comprise a plurality of directional antennas integrally formed; a second access module configured to comprise an omni-directional antenna; and a bridge configured to be connected to the first access module and the second access module via an Ethernet interface. | 04-28-2016 |
Joung Cheul Choi, Daejeon-Si KR
Patent application number | Description | Published |
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20110075390 | PAD LAYOUT STRUCTURE OF DRIVER IC CHIP - A pad layout structure of a driver IC chip of a liquid crystal display device includes dummy power pads and dummy ground pads, which are disposed in corners of the driver IC chip and are connected to main power pads and main ground pads by metal lines in a chip-on-film (COF) package. Accordingly, it is possible to reduce the resistance of power supply lines and ground lines, to minimize a power dip of a block located far away from the main power pads and main ground pads, and to prevent a failure in power application, which may occur due to a decrease of adhesive strength at a specific position, by dispersing the adhesion positions of the power pads and ground pads. | 03-31-2011 |
20110089576 | PAD LAYOUT STRUCTURE OF A DRIVER IC CHIP - A pad layout structure of a driver IC chip to be mounted to a liquid crystal display panel. The pad layout structure includes power pad sections placed at respective four corners of the driver IC chip and each having a first power pad for supplying first power to the driver IC chip, a second power pad for supplying second power to the driver IC chip, a third power pad for supplying third power to the driver IC chip and a fourth power pad for supplying fourth power to the driver IC chip. | 04-21-2011 |
20130335123 | DRIVER IC CHIP AND PAD LAYOUT METHOD THEREOF - Provided is a driver IC chip of a liquid crystal display (LCD). The driver IC chip has a layout of power pads, which may uniformly apply an adhesive force on the entire adhesion surface of the driver IC chip, when the driver IC chip is mounted on a display panel according to a chip-on-glass (COG) technique. | 12-19-2013 |
Jung-Hwan Choi, Daejeon-Si KR
Patent application number | Description | Published |
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20110267022 | INTERFACE SYSTEM FOR A COG APPLICATION - A current driving type transmitter using independent current signals, which can independently generate and transmit differential current indicating a logic state of data to be transmitted, using a difference between positive data current and negative data current without using external current, so that magnitudes of current applied to a pair of transmission lines can be kept constant without being influenced by the design of current sources and processing factors, a current driving type receiver using independent current signals, which can simultaneously convert a difference in levels of current, received through the transmission lines, into a voltage level by a single I-V converter, so that errors of a true line and a bar line can be lessened, and an interface system for COG application, which adopts the transmitter and receiver, so that distortion of transmitted signals can be reduced. | 11-03-2011 |
20110268202 | TRANSMISSION UNIT ADOPTING A DIFFERENTIAL VOLTAGE DRIVING SYSTEM, TRANSMISSION UNIT AND RECEIVING UNIT SELECTIVELY ADOPTING A DIFFERENTIAL CURRENT DRIVING SYSTEM, DIFFERENTIAL VOLTAGE DRIVING SYSTEM, AND INTERFACE SYSTEM - In the transmitter, receiver and interface system capable of selective adoption of a differential current driving scheme and a differential voltage driving scheme, a differential current driving scheme and a differential voltage driving scheme can be selectively adopted in one semiconductor chip depending upon the states of the transmission lines, so that effective data transmission is possible and common parts can be shared, whereby a design time can be shortened and a layout area can be reduced. | 11-03-2011 |
20110285679 | CHIP-ON-GLASS TYPE LIQUID CRYSTAL DISPLAY DEVICE - A chip-on-glass (COG) type liquid crystal display device minimizes a reflected wave from an input terminal of a source driver IC, regardless of the resistance value of a transmission line on a glass substrate, through the use of impedance matching at a front terminal of an LOG and impedance matching at an output terminal of a timing controller, thereby enhancing the frequency characteristic while maintaining a slim and lightweight design, so that it is possible to express a high-resolution high-quality image. | 11-24-2011 |
20110304356 | TRANSMITTER AND RECEIVER OF DIFFERENTIAL CURRENT DRIVING MODE, AND INTERFACE SYSTEM OF DIFFERENTIAL CURRENT DRIVING MODE INCLUDING THE SAME - Differential current driving type transmitter and receiver, and an interface system having the transmitter and receiver. The transmitter includes a current source, a current direction selecting block, and a balancing switch block. The current source sources currents to a pair of transmission lines or sinks currents flowing through the pair of transmission lines. The current direction selecting block transfers a current flowing from the current source to one transmission line of the pair of transmission lines and a current flowing through the other transmission line of the pair of transmission lines to the current source. The balancing switch block initializes the pair of transmission lines to a balanced state. | 12-15-2011 |
20120166896 | METHOD AND APPARATUS FOR TRANSMITTING DATA BETWEEN TIMING CONTROLLER AND SOURCE DRIVER, HAVING BIT ERROR RATE TEST FUNCTION - Disclosed is a method and apparatus for transmitting data between a timing controller and a source driver, and more particularly, a data transmission method and apparatus between a timing controller and a source driver, which has a bit error rate test (BERT) function for sensing an error rate in real time when data is transmitted and received between the timing controller and the source driver. | 06-28-2012 |
20120299903 | SOURCE DRIVER CIRCUIT OF LIQUID CRYSTAL DISPLAY DEVICE - Provided is a technology for preventing noisy data from being displayed before valid data is inputted when power is turned on in a liquid crystal display. A source driver circuit for a liquid crystal display includes: a power supply voltage input unit configured to divide a first power supply voltage and a second power supply voltage, such that a middle level of the second power supply voltage is lower than a level of the first power supply voltage; a power supply voltage comparison unit configured to compare division voltages inputted from the power supply voltage input unit, and output an output voltage of a high level in a time period in which the middle level of the second power supply voltage is higher than the level of the first power supply voltage; a Schmitt trigger configured to output the output voltage of the power supply voltage comparison unit as a reset signal while preventing a sensitive response to external environment; and a specific voltage supply unit configured to output a voltage of a specific level in a time period between the input of the reset signal from the Schmitt trigger and the input of a first gate start pulse. | 11-29-2012 |
Jung Min Choi, Daejeon-Si KR
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20110175943 | Gamma Voltage Output Circuit of Source Driver - A gamma voltage output circuit of a source driver includes a reference voltage generation unit configured to generate upper and lower reference voltages; and upper and lower gamma buffers configured to stabilize and output the reference voltages. The lower gamma buffers include a first gamma buffer having a first operational amplifier which operates as a rail amplifier in a region between a positive power supply voltage and a ground voltage to receive a first lower reference voltage of a positive voltage region and output a first gamma voltage of the positive voltage region, and the upper gamma buffers include a second gamma buffer having a second operational amplifier which operates as a rail amplifier in a region between the ground voltage and a negative power supply voltage to receive a first upper reference voltage of a negative voltage region and output a second gamma voltage of the negative voltage region. | 07-21-2011 |
20110273433 | BOOST CONVERTER FOR LIQUID CRYSTAL DISPLAY - In order that a boost converter of an LDI can reduce electromagnetic interference by generating a panel driving voltage through the use of a variable frequency, while achieving a stable boosting operation using the same frequency whenever each frame begins, an oscillator generates an oscillation signal having a frequency, which varies in a predetermined pattern or hops in a random pattern around a center frequency, and generates an oscillation signal having a preset fixed frequency whenever each frame begins. | 11-10-2011 |
20120044227 | POWER SUPPLY CIRCUIT FOR LIQUID CRYSTAL DISPLAY DEVICE - A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals. | 02-23-2012 |
20130300690 | CONTROL CIRCUIT OF TOUCH SCREEN AND NOISE REMOVING METHOD - The present invention discloses a control circuit of a touch screen and a noise removing method. The present invention provides a technique for performing differential sensing on two adjacent detection lines of a touch screen panel and integrating a differential sensing signal to filter noise. The control circuit and the noise removing method may remove display noise having an effect on two adjacent detection lines, three-wavelength lamp noise having a predetermined frequency, 60 Hz noise, and charger noise caused by battery charging. | 11-14-2013 |
20130300692 | SIGNAL PROCESSING CIRCUIT AND SIGNAL PROCESSING SYSTEM OF TOUCH SCREEN - The present invention discloses a signal processing circuit and a signal processing system for processing an input signal provided from a touch screen in response to a driving signal. | 11-14-2013 |
20150042546 | GAMMA VOLTAGE GENERATION CIRCUIT OF SOURCE DRIVER - The present invention relates to a technology for outputting a gamma voltage in a source driver of a display device. A gamma voltage generation circuit of a source driver in accordance with the present invention may form wide high and low gamma voltage ranges even when a negative power supply voltage and a positive power supply voltage are asymmetrical to each other. | 02-12-2015 |
20150138115 | SIGNAL PROCESSING CIRCUIT FOR TOUCH SCREEN AND METHOD FOR CONTROLLING THE SAME - The present disclosure relates to a signal processing circuit for a touch screen, which is capable of processing a sensing signal outputted from a touch screen panel, and a method for controlling the same. When pulses containing noise exist in the sensing signal, the signal processing circuit compensates for an integral signal in response to the pulses containing noise. | 05-21-2015 |
20160026335 | TOUCH SENSING DEVICE AND CONTROL DEVICE THEREOF - A touch sensing device may include: a pre-processing unit configured to reduce common signal noise and frequency components higher than a preset cut-off frequency from a pair of signals outputted from a touch panel, in response to a driving signal; and an attenuation unit configured to attenuate a frequency of a preset frequency region in an output signal of the pre-processing unit, and output a sensing signal. | 01-28-2016 |
Jung Pil Choi, Daejeon-Si KR
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20120093261 | METHOD AND APPARATUS OF TRANSMITTING DOWNLINK CONTROL SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Disclosed herein are a method and an apparatus for transmitting a downlink control signal in a wireless communication system. The apparatus for transmitting a downlink control signal includes: a preamble symbol generator generating preamble orthogonal frequency division multiplexing (OFDM) symbols based on a first pilot pattern among pilot patterns for each of the plurality of transmit antennas; a midamble symbol generator generating midamble OFDM symbols based a second pilot pattern excluding the first pilot pattern from the pilot patterns for each of the plurality of transmit antennas; an IFFT unit performing inverse fast Fourier transform (IFFT) for each transmit antenna on the preamble OFDM symbol and the midamble OFDM symbol; and a plurality of transmit antennas transmitting the preamble OFDM symbols and the midamble OFDM symbols. | 04-19-2012 |
20120269248 | METHOD AND APPARATUS OF DETECTING SIGNAL BASED ON MINIMUM MEAN SQUARE ERROR IN MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity. | 10-25-2012 |
20140253380 | ACTIVE RETRODIRECTIVE WIRELESS COMMUNICATION APPARATUS - An active retrodirective wireless communication apparatus is provided. The active retrodirective wireless communication apparatus can extend a communication range by enabling communication with a wide area user who is not able to communicate via an omnidirectional antenna, by alternately operating a plurality of active retrodirective antennas during a time interval for performing omnidirectional communication among a plurality of local area users, and a time interval for performing directional communication to a specific wide area user. | 09-11-2014 |
Kang-Il Choi, Daejeon-Si KR
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20120124212 | APPARATUS AND METHOD FOR PROCESSING MULTI-LAYER DATA - A multi-layer data processing apparatus and method are provided. The multi-layer data processing apparatus includes a lower hierarchy processing unit configured to generate at least one lower hierarchy flow from input data using lower hierarchy information, and to allocate the generated lower hierarchy flows to a plurality of lower hierarchy processors to perform lower hierarchy processing in respect of the lower hierarchy flows in parallel; and a higher hierarchy processing unit configured to generate at least one higher hierarchy flow from data transmitted from the lower hierarchy processing unit using higher hierarchy information, and to allocate the generated higher hierarchy flows to a plurality of higher hierarchy processors to perform higher hierarchy processing in parallel in respect of the higher hierarchy flows. | 05-17-2012 |
20120254936 | APPARATUS AND METHOD FOR SECURITY AND NETWORK MANAGEMENT BASED ON FLOW - There are provided an apparatus and method for security and network management based on flows. The flow-based security and network management apparatus generates data flows from network packets, and performs network management in connection with security management based on the generated data flows. Accordingly, it is possible to maximally guarantee traffic fairness between users against attack or intrusion traffic. | 10-04-2012 |
20140160931 | APPARATUS AND METHOD FOR MANAGING FLOW IN SERVER VIRTUALIZATION ENVIRONMENT, AND METHOD FOR APPLYING QOS - An apparatus and method for managing a flow in a server virtualization environment, and a method of applying a QoS policy, the method including a flow processing unit configured to analyze a flow generated by a virtual machine (VM) to extract flow information, determine whether the flow is a new flow by comparing the extracted flow information with preset flow information, and apply a corresponding Quality of Service (QoS) policy to the flow, and a QoS management unit configured to, in a case in which the flow is a new flow, generate a QoS policy for the analyzed flow based on the extracted flow information and prestored virtual machine information, and transmit the generated QoS policy to the flow processing unit. | 06-12-2014 |
Kee Jung Choi, Daejeon-Si KR
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20140039347 | PORTABLE LANCING DEVICE USING LASER AND EQUIPPED WITH DOUBLE SAFETY DEVICE AND DISPOSABLE CAP USED THEREWITH - A portable laser blood sampling device equipped with a dual safety device and a disposable cap used therewith are provided. Specifically, a portable laser blood sampling device equipped with a dual safety device which enables safe laser irradiation when a laser is irradiated to the outside by a laser module and a disposable cap used therewith are provided. | 02-06-2014 |
Ki-Min Choi, Daejeon-Si KR
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20130113688 | ARRAY SUBSTRATE FOR GATE-IN-PANEL-TYPE ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE - An array substrate for a gate-in-panel (GIP)-type organic light-emitting diode (OLED) display device is provided. A plurality of circuit blocks are formed on gate circuit units and separated into pixel lines in which respective gate lines are disposed, and a plurality of clock lines formed in each of signal input units. Each of the signal input units includes at least one group. Each of the groups includes the plurality of clock lines. Each of the circuit blocks includes one or two partial circuit blocks, which are sequentially disposed in a row in a lengthwise direction of the gate line in each of the pixel lines. Each of the partial circuit blocks is included in a signal input unit disposed most adjacent thereto, and connected to a clock line formed in one group disposed most adjacent thereto through a plurality of first connection lines. | 05-09-2013 |
Kwang-Sik Choi, Daejeon-Si KR
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20140205899 | BINDER FOR RECHARGEABLE LITHIUM BATTERY, ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING ELECTRODE - A binder for a rechargeable lithium battery includes a copolymer having a weight average molecular weight of about 10,000 to about 500,000 and including a repeating unit represented by Chemical Formula X and a repeating unit represented by Chemical Formula Y-1: | 07-24-2014 |
20140272575 | BINDER FOR RECHARGEABLE LITHIUM BATTERY, ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY INCLUDING BINDER, METHOD OF PREPARING ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING ELECTRODE - Embodiments are directed to a binder for a rechargeable lithium battery, the binder including a copolymer including a repeating unit represented by Chemical Formula X, a repeating unit represented by Chemical Formula Y-1, and a repeating unit represented by Chemical Formula Z, and lithium ions, | 09-18-2014 |
20150118556 | BINDER COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A binder composition for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The binder composition includes lithium polyacrylate and a solvent and has a viscosity of about 500 cps to about 5000 cps. | 04-30-2015 |
Miran Choi, Daejeon-Si KR
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20140172497 | APPARATUS AND METHOD FOR MANAGING RISK BASED ON PREDICTION ON SOCIAL WEB MEDIA - An apparatus for managing risk in social web media in a prediction-based manner is provided, and includes a risk vocabulary management unit, which extracts and manages vocabulary to be managed as pertaining to risk from social web content, a risk issue prediction analysis quality extraction unit, which performs language analysis and sensitivity analysis, a risk prediction modeling unit, which models risk prediction analysis, a risk detection and notification unit, which automatically detects and notifies the risk, a risk situation monitoring unit, which monitors in real time a risk state of a risk entity when an alarm is raised with respect to the detected risk, and a risk history management unit, which receives user feedback for monitored risk information and manages a record of a terminated risk situation. | 06-19-2014 |
Sang Sung Choi, Daejeon-Si KR
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20120139598 | PULSE GENERATOR AND METHOD FOR GENERATING PULSE - A pulse generator is provided. The pulse generator includes: a time delayed pulse generation unit including a plurality of delay cells for receiving a first pulse having a first pulse width and outputting pulses delayed by a particular time delay value on the basis of one of a rising edge and a falling edge of the first pulse; an edge combiner configured to receive the plurality of time delayed pulses from the time delayed pulse generation unit and generate second pulses having a second pulse width; and a channel selector configured to regulate the number of outputs of the second pulses generated by the edge combiner. | 06-07-2012 |
20120140745 | METHOD FOR OPERATING DEVICE IN PERSONAL AREA NETWORK - A method for operating a device in a personal area network (PAN), includes: obtaining physical layer information regarding a physical layer; scanning a channel on the basis of the physical layer information; selecting a channel on the basis of channel information obtained through the channel scanning process; determining whether or not there is a PAN coordinator with respect to the selected channel; and when a PAN coordinator does not exist in the selected channel, transmitting a beacon signal including information regarding a superframe structure, wherein the superframe structure includes at least one sub-superframe, and the information regarding the superframe structure includes information regarding the number of beacon slots for transmitting a beacon signal in each sub-superframe, the number of data slots for transmitting data in each sub-superframe, and the number of sub-superframes. | 06-07-2012 |
20120177141 | TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD AND RECEPTION METHOD FOR WIRELESS COMMUNICATION SYSTEM - A transmission device for transmitting a signal in a wireless communication system is provided. The transmission device includes: a serial-to-parallel converter configured to convert an input serial bit stream into a parallel bit stream having three bits; and a phase rotation symbol mapper configured to map the parallel bit stream to a symbol having phase rotation characteristics, wherein when the parallel bit stream includes first to third bits, the phase rotation symbol mapper maps the second and third bits to a complex variable and sequentially maps a real number part and an imaginary number part of the complex variable to the front part and the rear part of a symbol in this order or to the rear part and the front part of the symbol in this order. | 07-12-2012 |
Seong Wook Choi, Daejeon-Si KR
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20100020578 | ADAPTER POWER SUPPLY - An advantage of the present invention is to provide an adapter power supply which varies a link voltage of DC power serving an input power of a DC/DC converter according to variation of a load current estimated by measuring a secondary current using a lossless current measurement technique at a primary terminal of a transformer of the DC/DC converter and thus presuming a load current of an output power. | 01-28-2010 |
20100156509 | SWITCHING MODE POWER SUPPLY FOR REDUCING STANDBY POWER - In accordance with one aspect of the present invention to achieve the object, there is provided a switching mode power supply for reducing standby power including an EMI(Electro-Magnetic Interference) filter unit for removing a high frequency noise component by being connected to an input power source; a PFC(Power Factor Correction) unit connected to the EMI filter unit; a DC/DC unit connected to the PFC unit; a synchronous rectifier unit connected to the DC/DC unit; a PFC controller connected to the PFC unit and provided with an overvoltage protection stage; a DC/DC controller which is connected to the DC/DC unit and generates a burst mode operation signal; a synchronous rectifier controller for controlling the synchronous rectifier unit by being connected to the synchronous rectifier unit; an error signal generation unit for sensing an output voltage to generate an error signal and then transmitting the error signal to the DC/DC controller; a control unit for synchronizing the DC/DC unit and the PFC unit so that the PFC unit also operates in a burst mode if the DC/DC unit operates in the burst mode by connecting the DC/DC controller and the overvoltage protection stage of the PFC controller. | 06-24-2010 |
20100302812 | ADAPTER POWER SUPPLY - The present invention relates to an adapter power supply, which includes a switching unit for switching a DC voltage; a transformer which has a primary winding connected to the switching unit, a secondary winding electromagnetically coupled to the primary winding, and an auxiliary winding electromagnetically coupled to the primary winding; a rectifier for rectifying a voltage outputted from the transformer; and a controller for controlling the switching unit to operate according to the PWM scheme in a normal operation mode, and to operate according to a quasi-resonant scheme in a standby mode, by detecting information of a load connected to the rectifier. | 12-02-2010 |
Seung-Han Choi, Daejeon-Si KR
Patent application number | Description | Published |
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20120123774 | APPARATUS, ELECTRONIC APPARATUS AND METHOD FOR ADJUSTING JITTER BUFFER - An apparatus, electronic apparatus and method for adjusting jitter buffer is provided. A previous jitter buffer size based on a jitter buffer size determined according to an adaptive jitter buffer size calculation algorithm is applied in predicting a jitter buffer size of future time such that the predicted jitter buffer size is applied to obtain a jitter buffer size of a valid time. The audio quality of the speech transmitted over a packet switched network is enhanced. | 05-17-2012 |
Seung Hyun Choi, Daejeon-Si KR
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20120092214 | METHOD OF RECEIVING GNSS SIGNAL AND APPARATUS THEREOF - A method of receiving a global navigation satellite system (GNSS) signal in a GNSS reception apparatus is provided. The method includes the steps of: measuring channel quality for each frequency band; selecting a plurality of reception channels by using the measured channel quality; reconfiguring an operating parameter of the reception apparatus in accordance with the reception channel; and receiving a signal by using the reconfigured operating parameter. | 04-19-2012 |
Seung-Nam Choi, Daejeon-Si KR
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20110142157 | INTERLEAVING APPARATUS FOR IMPROVING TRANSMISSION PERFORMANCE AND INTERLEAVING METHOD USED BY THE INTERLEAVING APPARATUS - Provided are an interleaving apparatus for improving transmission performance and an interleaving method used by the interleaving apparatus. The interleaving apparatus determines the type of data at each element position of an interleaving matrix, reads encoded data, which corresponds to the determined type of data at each element position, from an encoder, rearranges the read data in an order determined by the interleaving matrix, and outputs the rearranged data. Since the interleaving apparatus does not include a memory, it can prevent delay in signal processing, thereby improving transmission performance. | 06-16-2011 |
Song-In Choi, Daejeon-Si KR
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20120167165 | LAWFUL INTERCEPTION TARGET APPARATUS, LAWFUL INTERCEPTION APPARATUS, LAWFUL INTERCEPTION SYSTEM AND LAWFUL INTERCEPTION METHOD - A lawful interception apparatus, a lawful interception target apparatus and a lawful interception system are provided. If a lawful interception target apparatus accesses a new communication network which has no lawful interception authority, the lawful interception apparatus receives intercept activation information from the lawful interception target apparatus through a communication network which has a lawful interception authority. The lawful interception apparatus performs seamless lawful interception on the lawful interception target apparatus by use of the received intercept activation information. | 06-28-2012 |
Sung-Gu Choi, Daejeon-Si KR
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20100151872 | APPARATUS AND METHOD FOR MANAGING RADIO RESOURCES IN MOBILE COMMUNICATION SYSTEM - Disclosed are an apparatus and a method for managing radio resources, capable of effectively managing radio resources. When a normal call and a handover call are attempted, radio resources are allocated and it is determined whether or not to perform an overload control based on received load related information and then it is determined whether or not to admit the call depending on an availability of a bandwidth for radio resources, a priority of real time traffic or a locking probability of data. The quality and efficiency of a mobile communication service is enhanced by pertaining an effective allocation on radio resources and controlling the load of radio resources in the mobile communication system. The radio resource managing apparatus and method using the same are applied to IMT (International Mobile Telecommunications)-Advanced system base station, thereby optimizing the efficiency of radio resources. | 06-17-2010 |
20140241323 | COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION METHOD IN OVERLAID CELL ENVIRONMENT - According to the present invention, a method of performing coordinated multi-point transmission and reception in an overlaid cellular system in which a first base station and a second base station overlay each other, the method comprising performing a handover using a coordinated multi-point transmission and reception scheme based on CRS-RS (Channel State Indicator-Reference Signal) information of user equipment by the first and second base stations. | 08-28-2014 |
Sung-Yool Choi, Daejeon-Si KR
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20120068161 | METHOD FOR FORMING GRAPHENE USING LASER BEAM, GRAPHENE SEMICONDUCTOR MANUFACTURED BY THE SAME, AND GRAPHENE TRANSISTOR HAVING GRAPHENE SEMICONDUCTOR - A method for forming graphene includes introducing a substrate and a carbon-containing reactant source into a chamber, and radiating a laser beam onto the substrate to decompose the carbon-containing reactant source and form graphene over the substrate using carbon atoms generated by decomposition of the carbon-containing reactant source. A carbon-containing gas (methane) decomposes upon radiation of a laser beam. The carbon-containing gas has a decomposition rate on the order of femtoseconds and the laser beam has a pulse on the order of nanoseconds or more. The graphene is grown in a single layer along the surface of the substrate. Then, the graphene is selectively patterned using a laser beam to form a desired pattern. | 03-22-2012 |
Tae-Sang Choi, Daejeon-Si KR
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20120165010 | APPARATUS AND METHOD FOR AIRBORNE SELF-POWERED WIRELESS COMMUNICATION - An apparatus and method for airborne self-powered wireless communication is provided. The airborne wireless communication apparatus is fixed to an airborne platform including an aerostat, which maintains a constant altitude in air, uses an airborne wind power turbine as a power generating source, and supports an air-to-air wireless communication and an air-to-ground wireless communication by use of a mesh network. | 06-28-2012 |
20160119189 | SYSTEM FOR CONTROLLING CARRIER VIRTUAL NETWORK - A system for controlling a carrier virtual network is disclosed. The system includes at least one virtual network controller for controlling resources of a carrier virtual network based on customer request information received from a customer network controller, and at least one physical network controller for controlling resources of a carrier physical network based on a service profile received from the at least one virtual network controller. The at least one virtual network controller interworks with the at least one physical network controller in a one to one, one to N (N is an integer equal to or larger than 2), or N to one correspondence. | 04-28-2016 |
Wan Sik Choi, Daejeon-Si KR
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20120122475 | METHOD AND APPARATUS FOR ESTIMATING POSITION OF ACCESS POINT IN WI-FI SYSTEM - A method and apparatus for estimating a position of an access point (AP) in a Wi-Fi system is provided. The method includes measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), selecting an imaginary attenuation factor, calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the calculating the range and the calculating the intersecting point of ranging circles while changing the imaginary attenuation factor, and estimating the best intersecting point as the position of the AP. | 05-17-2012 |
Won-Kyu Choi, Daejeon-Si KR
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20100141386 | NEAR-FIELD RFID READER ANTENNA - A near-field radio frequency identification (RFID) reader antenna is provided. The near-field RFID reader antenna is intended to separately recognize adjacent items to which a plurality of small RFID tags are attached, such as wines displayed on a shelf in a store or chip trays on casino tables, using a near field. The near-field REID reader antenna includes a dielectric layer, at least one signal line formed on the dielectric layer, a ground surface formed under the dielectric layer, at least one ground line formed under the dielectric layer to be electrically connected to the ground surface in parallel with the signal line, at least one signal stub formed to be electrically connected to the signal line toward the ground line, and at least one ground stub formed to be electrically connected to the ground line toward the signal line in parallel with the signal stub. | 06-10-2010 |
20100314453 | TAG ANTENNA USING MICROSTRIP LINE, METHOD OF MANUFACTURING THE SAME AND RADIO FREQUENCY IDENTIFICATION TAG - Disclosed is a Radio Frequency Identification (RFID) tag antenna. The tag antenna includes a lower dielectric substrate and an upper dielectric substrate. The lower dielectric substrate is provided at a lower surface thereof with a ground plane and at an upper surface thereof with two microstrip lines. The microstrip lines each have an open-end, the open ends spaced apart from each other from a middle of the lower dielectric substrate while facing each other to form a radiating slot from which radiation of electromagnetic waves occurs. The upper dielectric substrate is provided at an upper surface thereof with at least one electric capacitive device and is stacked on the lower dielectric substrate. The RFID tag antenna enhances radiation efficiency while achieving miniaturization. | 12-16-2010 |
20120133488 | RFID ELECTRONIC SHELF APPARATUS AND METHOD OF DETECTING POISITONS OF TAGS USING THE SAME - A Radio Frequency IDentification (RFID) electronic shelf apparatus according to the present invention includes electronic shelf units stacked and each configured to have a plurality of reader antennas, a reader configured to recognize the electronic shelf units individually or in a group in order to recognize a tag included in the electronic shelf unit, and a position detection processing unit configured to group the plurality of reader antennas, included in the electronic shelf unit, and to obtain position information about the electronic shelf unit on which the tag is stacked based on tagging information provided by the reader. Accordingly, there are advantages of stability and accuracy in the transmission of information, reduced configuration costs, and efficient store management by solving the shadow region of an electric wave due to the stacking of items within an electronic shelf and the close arrangement of the items. | 05-31-2012 |
20120139712 | HYBRID SWITCH FOR EXTENDING ANTENNA PORT AND METHOD OF CONTROLLING THE SAME, AND RFID SYSTEM USING THE HYBRID SWITCH - A hybrid switch includes a plurality of antenna ports, a switching module for setting up a path so that a signal received from a reader passes through a designated antenna port from among the plurality of antenna ports, an antenna sense module for determining whether antennas have been attached to the plurality of antenna ports, and a communication module for processing a communication signal with the reader or a communication signal with other switch. According to the present invention, an electric wave fading zone can be obviated and RFID tags can be more efficiently recognized by increasing the number of antenna ports, without generating problems, such as the attenuation of transmission output of a reader and a reduction of the recognition ratio due to a collision between tags resulting from the constant transmission of power of the reader. | 06-07-2012 |
20120139795 | NEAR-FIELD ANTENNA - The present invention relates to a near-field antenna. In an aspect, the near-field antenna may include a dielectric layer, a ground plane formed on one side of the dielectric layer, a plurality of U-shaped slots periodically disposed in the ground plane for radiation, and a microstrip line provided on the other side of the dielectric layer for power feeding. In another aspect, the near-field antenna may include a dielectric layer, a ground plane formed on one side of the dielectric layer, a plurality of U-shaped slots periodically disposed in the ground plane for radiation, and a microstrip line configured to have a plurality of U-shaped slots diverged on the other side of the dielectric layer in parallel for power feeding, have the plurality of U-shaped slots periodically disposed in series in respective diverged lines, and have an end shorted to form standing waves. | 06-07-2012 |
Woo-Young Choi, Daejeon-Si KR
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20110016232 | TIME STAMPING APPARATUS AND METHOD FOR NETWORK TIMING SYNCHRONIZATION - A time stamping apparatus and method for network timing synchronization are provided. A receiving apparatus receives data from a transmitting apparatus, generates a synchronization pulse signal synchronized with a local clock of the transmitting apparatus based on the received data, wherein the received data include information regarding the transmission time of the data, measured using the local clock of the transmitting apparatus, and the receiving apparatus measures the reception time of the data using the synchronization pulse signal. Therefore, accurate network timing synchronization may be achieved. | 01-20-2011 |
Yong-Sun Choi, Daejeon-Si KR
Yoonjae Choi, Daejeon-Si KR
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20140172497 | APPARATUS AND METHOD FOR MANAGING RISK BASED ON PREDICTION ON SOCIAL WEB MEDIA - An apparatus for managing risk in social web media in a prediction-based manner is provided, and includes a risk vocabulary management unit, which extracts and manages vocabulary to be managed as pertaining to risk from social web content, a risk issue prediction analysis quality extraction unit, which performs language analysis and sensitivity analysis, a risk prediction modeling unit, which models risk prediction analysis, a risk detection and notification unit, which automatically detects and notifies the risk, a risk situation monitoring unit, which monitors in real time a risk state of a risk entity when an alarm is raised with respect to the detected risk, and a risk history management unit, which receives user feedback for monitored risk information and manages a record of a terminated risk situation. | 06-19-2014 |
Youngho Choi, Daejeon-Si KR
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20130227973 | HEAT PUMP SYSTEM FOR VEHICLE AND METHOD OF CONTROLLING THE SAME - Disclosed therein are a heat pump system for a vehicle and a method of controlling the heat pump system, which determines that frosting begins on an exterior heat exchanger and carries out a defrosting control if a difference value between outdoor temperature and refrigerant temperature of an outlet side of the exterior heat exchanger is above a frosting decision temperature in a heat pump mode, thereby increasing frost-prevention and defrosting effects and enhancing heating performance and stability of the system because the system recognizes the beginning of frosting on the exterior heat exchanger at a proper time so as to carry out the defrosting control. | 09-05-2013 |
20130228324 | HEAT PUMP SYSTEM FOR VEHICLE AND METHOD OF CONTROLLING THE SAME - Disclosed therein are a heat pump system for a vehicle and a method of controlling the heat pump system, which variably controls only a compressor if the number of revolutions of the compressor is less than the upper limit of the number of the maximum revolutions of the compressor and operates an electric heater only when the number of revolutions of the compressor reaches the upper limit of the number of the maximum revolutions of the compressor in order to satisfy a target discharge temperature in a heat pump mode, thereby preventing that convergence of an air discharge temperature of the interior of the vehicle is deteriorated or becomes unstable when the compressor and the electric heater are variably controlled at the same time in order to satisfy the target discharge temperature. | 09-05-2013 |
20160033193 | HEAT PUMP SYSTEM FOR VEHICLE AND METHOD OF CONTROLLING THE SAME - Disclosed therein are a heat pump system for a vehicle and a method of controlling the heat pump system, which determines that frosting begins on an exterior heat exchanger and carries out a defrosting control if a difference value between outdoor temperature and refrigerant temperature of an outlet side of the exterior heat exchanger is above a frosting decision temperature in a heat pump mode, thereby increasing frost-prevention and defrosting effects and enhancing heating performance and stability of the system because the system recognizes the beginning of frosting on the exterior heat exchanger at a proper time so as to carry out the defrosting control. | 02-04-2016 |
Youngwoo Choi, Daejeon-Si KR
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20120095673 | APPARATUS AND METHOD FOR PROVIDING DRIVING INFORMATION FOR VEHICLES BASED ON HIGH SPEED MOVEMENT LONG DISTANCE IMPUSE RADIO ULTRA WIDEBAND - An apparatus for providing driving information for a vehicle based on high speed movement long distance impulse radio-ultra wideband (IR-UWB) is provided. The apparatus includes an IR-UWB module configured to generate a packet based on high speed movement long distance IR-UWB, transmit the generated packet, and interpret a received packet and a controller operationally coupled to the IR-UWB module. The controller is configured for the step of estimating a distance between an own vehicle and a different vehicle, estimating a relative location of the own vehicle with respect to the different vehicle based on the distance and generating driving information including the distance and the relative location. | 04-19-2012 |
20120127318 | SURVEILLANCE SYSTEM USING WIRELESS NETWORK, MASTER SENSOR NODE, AND SERVER APPARATUS - A surveillance system includes a sensor node, a master sensor node and a server. The sensor node firstly determines whether an event occurs based on self-event information and supplementary event information received from the plurality of sensors. The master sensor node receives the occurrence of the event from the sensor node, and secondly determines whether the event occurred based on the self-event information and the supplementary event information. The server receives whether the event occurs from the master sensor node. The occurrence of the event can be autonomously detected and determined among the sensor node, the master sensor node, and the server. | 05-24-2012 |
Yu-Jeong Choi, Daejeon-Si KR
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20130235965 | Apparatus For Testing Loss-Of-Coolant Accident Using Model Of Nuclear Containment Building - Provided is an apparatus for testing a loss-of-coolant accident using a model of a nuclear containment building, including a containment vessel of which an upper surface is opened and side and lower surfaces are transparent; an internal structure which is disposed in the containment vessel; a hose pipe which is disposed at an upper side of the containment vessel; and a measuring device which is disposed at the lower surface of the containment vessel so as to monitor movement of fluid and debris in the containment vessel. | 09-12-2013 |
Yu-Jung Choi, Daejeon-Si KR
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20130333461 | Hydraulic Test Device For Head Loss Of Strainer And Test Method Thereof - Provided is a hydraulic test device for head loss of a strainer and a test method thereof, wherein the hydraulic test device comprises a circulation pipe; an inflow container; a container; a debris interceptor; sensors; a circulation pump; a flow meter; a circulation heating heater; and a data acquisition part which stores data sensed by each sensor, flow rate data. | 12-19-2013 |