Patent application number | Description | Published |
20110056954 | INSULATION PANEL FOR CORNER AREA OF LNG CARGO CONTAINMENT SYSTEM - A corner panel of an LNG cargo that includes a main body, which forms a corner area of the cargo, and a stress diverging part, which reduces the convergence of stress of the main body by being integrated with an internal face of the main body and being formed with curvature, and a secondary barrier formed in a curved shape. | 03-10-2011 |
20110056955 | INSULATION STRUCTURE OF LNG CARRIER CARGO TANK AND METHOD FOR CONSTRUCTING THE SAME - An insulation structure of a cargo tank in an LNG carrier and a method of constructing the insulation structure includes a first metal foil attached and installed in between the top insulation panel and the bottom insulation panel, a second metal foil attached to and installed on the first metal foil that is positioned on an upper side of a gap formed between the bottom insulation panels, and a top bridge panel attached to and installed on an upper side of the second metal foil. | 03-10-2011 |
20110186580 | REINFORCING MEMBER FOR CORRUGATED MEMBRANE OF LNG CARGO TANK, MEMBRANE ASSEMBLY HAVING THE REINFORCING MEMBER AND METHOD FOR CONSTRUCTING THE SAME - The present invention is related to a reinforcing member for a membrane for improving the pressure-withstanding property of the membrane having corrugations, and a membrane assembly having the reinforcing member and a method of constructing the membrane assembly. By providing a reinforcing member for a membrane having corrugations and installed in an insulating structural member of an LNG cargo, the present invention can prevent the collapse of the corrugation and attenuate shocks against a same load without increasing the facial rigidity of the corrugation, and improve the insulating property by forming an additional insulating layer. | 08-04-2011 |
20110281203 | METHOD FOR MANUFACTURING COMPOSITE SEPARATOR FOR FUEL CELL AND COMPOSITE SEPARATOR MANUFACTURED BY THE SAME - The present invention provides a method for manufacturing a composite separator for a fuel cell, which can reduce the electrical contact resistance by performing an additional post-treatment to remove residual resin remaining on the surface of the composite separator by plasma etching. In certain preferred embodiments, the present invention provides a method for manufacturing a composite separator for a fuel cell, in which a liquid phase resin for gasket is applied to the surface of the composite separator along a predetermined gasket pattern, or a semi-cured resin for gasket in the form of a film with a predetermined gasket pattern is stacked on the surface of the composite separator, and then plasma etching is performed to remove the residual resin and, at the same time, cure the resin for gasket, thus reducing the overall processing time to improve the productivity and preventing a composite material of the separator from being damaged. | 11-17-2011 |
20120077107 | COMPOSITE SEPARATOR FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator. | 03-29-2012 |
20140242497 | COMPOSITE SEPARATOR FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a composite separator for a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The inventive method involves allowing graphite foil layers to be brought into direct contact with each other when graphite foils are stacked on both sides of a carbon fiber reinforced composite material prepreg, thereby improving electrical conductivity in the thickness direction of the separator. | 08-28-2014 |
Patent application number | Description | Published |
20090260600 | FUEL PUMP MODULE FOR ETHANOL FUEL VEHICLE - A fuel pump module for an ethanol fuel vehicle, which is mounted on a fuel tank for storing ethanol fuel and is provided with a pump and a supply portion for pressure-feeding the ethanol fuel stored in the fuel tank to an engine, may include a heater unit that is disposed therebetween and is fluid-communicated to the pump and the supply portion through a connection hose so as to heat by electrical resistance the ethanol fuel supplied to the heater unit through the pump. | 10-22-2009 |
20090260602 | CANISTER FOR VEHICLE - A canister for a vehicle may include a cover member covering a hole formed at a floor panel corresponding to a fuel pump module mounted on a fuel tank, and a main body integrally formed at a lower surface of the cover member, and connected to the fuel pump module through a hose so as to collect evaporation gas generated in the fuel tank and supply the evaporation gas to an intake line. | 10-22-2009 |
20130146025 | FUEL SUPPLY SYSTEM OF VEHICLE - A fuel supply system of a vehicle, may include a fuel tank storing ethanol therein, a main injector installed at an engine to inject the ethanol from the fuel tank, a heater provided to heat the ethanol supplied from the fuel tank to the engine, a cold-starting injector installed at the engine to inject the ethanol heated by the heater, and a valve unit connected to the main injector and the cold-starting injector and performing a switching operation between a state of the ethanol being supplied from the fuel tank to the main injector and a state of the ethanol heated by the heater being supplied to the cold-starting injector. | 06-13-2013 |
20130146145 | DEVICE AND METHOD FOR REDUCING TEMPERATURE OF BOMBE USING LATENT HEAT OF LPG VAPORIZATION - A device for reducing the temperature of a bombe, which stores liquefied petroleum gas (LPG) fuel and may be connected to a fuel supply line for supplying the fuel to an injector, using latent heat of LPG vaporization, may include a fuel pump installed in the bombe and connected to an end of the fuel supply line for pressurizing the fuel, a cut-off valve installed in the fuel supply line for selectively cutting off fuel supply to the injector, a fuel collection line branched from the fuel supply line to the inside of the bombe for collecting the supplied fuel into the bombe when the cut-off valve may be closed, and
| 06-13-2013 |
20140182562 | FUEL HEATING DEVICE FOR IMPROVING COLD START PERFORMANCE OF FLEX FUEL VEHICLE - A fuel heating device may improve cold start performance and solve a number of problems of conventional auxiliary tank and heating systems of a flex fuel vehicle (FFV). The fuel heating device may include a heater having embedded therein a heat emission object for heating fuel, a solenoid valve connected the heater such that a flow path to a first outlet is opened or closed to selectively supply fuel, a temperature sensor installed in the heater, and a controller for turning on and off the heater and opening and closing the solenoid valve according to a temperature of the fuel, in which the outlet of the heater is connected with a cold start injector through a cold start line and an inlet of the solenoid valve is connected with a fuel line connected from the fuel tank. | 07-03-2014 |
Patent application number | Description | Published |
20090206729 | PHOSPHOR MATERIAL, COATING PHOSPHOR COMPOSITION, METHOD OF PREPARING PHOSPHOR MATERIAL AND LIGHT EMITTING DEVICE - Disclosed are phosphor, coating phosphor composition, a method for preparing the phosphor, and a light emitting device. A silicate-based phosphor is expressed in a chemical formula of (4-x-y-z)SrO.xBaO.zCaO.aMgO.2(SiO | 08-20-2009 |
20090315056 | SEMICONDUCTOR DEVICE PACKAGE - A semiconductor device package is provided. The semiconductor device package comprises a package body, a plurality of electrodes, a paste member, and a semiconductor device. The electrodes comprise a first electrode disposed on the package body. The paste member is disposed on the first electrode and comprises at least one of an inorganic filler and metal powder. The semiconductor device is die-bonded on the paste member. | 12-24-2009 |
20100102345 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package comprises a body comprising a cavity at one side thereof, at least one of lead frames comprising a bottom frame and a sidewall frame in the cavity, and a light emitting device electrically connected with the lead frames. | 04-29-2010 |
20100213489 | PHOSPHOR AND LIGHT EMITTING DEVICE - A phosphor and a light emitting device containing the phosphor are provided. According to an embodiment, the phosphor is expressed in a chemical formula of L | 08-26-2010 |
20100237370 | LIGHT EMITTING DEVICE PACKAGE - Embodiments relate to a light emitting device package. The light emitting device package comprises: a body comprising a multilayer cavity; a light emitting device in the cavity; a first phosphor layer sealing the light emitting device and comprising a first phosphor; and a second phosphor layer comprising a second phosphor on the first phosphor layer, the second phosphor and the first phosphor having a difference in the specific gravity. | 09-23-2010 |
20110133240 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Discussed is an LED package The LED package includes a body having a cavity at one side thereof, at least one of lead frames having a bottom frame and a sidewall frame in the cavity, and a light emitting device electrically connected with the lead frames. | 06-09-2011 |
20110220952 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Discussed is a semiconductor LED package. The semiconductor LED package includes a packet body having a cavity, a semiconductor light emitting device in the cavity of the package body; and a plurality of reflective frames, each of the reflective frames having a bottom frame in the cavity of the package body, and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame, wherein the plurality of reflective frames are electrically separated from each other. | 09-15-2011 |
20120098018 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package includes a package body, a semiconductor light emitting device on the package body and at least one of frames on the package body. At least one of the frames includes a bottom frame on the package body, and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame. | 04-26-2012 |
20120256225 | SEMICONDUCTOR DEVICE PACKAGE INCLUDING A PASTE MEMBER - A semiconductor device package is provided. The semiconductor device package comprises a package body; a plurality of electrodes comprising a first electrode on the package body; a paste member on the first electrode and comprising inorganic fillers and metal powder; and a semiconductor device die-bonded on the paste member, wherein a die-bonding region of the first electrode comprises a paste groove having a predetermined depth and the paste member is formed in the paste groove. | 10-11-2012 |
20130313966 | PHOSPHOR AND LIGHT EMITTING DEVICE - A phosphor and a light emitting device containing the phosphor are provided. According to an embodiment, the phosphor is expressed in a chemical formula of L | 11-28-2013 |
20130341654 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package includes a package body, a first frame and a second frame on the package body and a light emitting device chip on the first frame. The first frame is separated from the second frame, and the first frame includes a bottom frame on the package body and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame. | 12-26-2013 |
20140145205 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is an LED package. The LED package includes a package body, a first frame and a second frame on the package body and a light emitting device chip on the first frame. The first frame is separated from the second frame, and the first frame includes a bottom frame on the package body and at least two sidewall frames extending from the bottom frame and inclined with respect to the bottom frame. | 05-29-2014 |
20150021644 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is a light emitting device package. The light emitting device package includes a package body having a first cavity and a second cavity; a plurality of reflective frames comprising a first reflective frame and a second reflective frame on the first cavity and the second cavity, respectively, and each of the first reflective frame and the second reflective frame comprises a bottom frame and at least two side wall frames extending from the bottom frame; and a light emitting device on the first reflective frame, wherein the first reflective frame and the second reflective frame are electrically separated from each other. | 01-22-2015 |
20150021651 | LIGHT EMITTING DEVICE PACKAGE AND LIGHT UNIT HAVING THE SAME - Disclosed is a light emitting device package. The light emitting device package includes a package body having a first cavity and a second cavity; a plurality of reflective frames comprising a first reflective frame and a second reflective frame on the first cavity and the second cavity, respectively, and each of the first reflective frame and the second reflective frame comprises a bottom frame and at least two side wall frames extending from the bottom frame; and a light emitting device on the first reflective frame, wherein the first reflective frame and the second reflective frame are electrically separated from each other. | 01-22-2015 |
Patent application number | Description | Published |
20090001398 | Semiconductor light emitting device and method of manufacturing the same - There are provided a semiconductor light emitting device that can be manufactured by a simple process and has excellent light extraction efficiency and a method of manufacturing a semiconductor light emitting device that has high reproducibility and high throughput. A semiconductor light emitting device having a substrate and a lamination in which a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer are sequentially laminated onto the substrate according to an aspect of the invention includes a silica particle layer; and an uneven part formed at a lower part of the silica particle layer. | 01-01-2009 |
20090152538 | THIAZOLE-BASED SEMICONDUCTOR COMPOUND AND ORGANIC THIN FILM TRANSISTOR USING THE SAME - Provided are an organic semiconductor compound using thiazole, and an organic thin film transistor having an organic semiconductor layer formed of the organic semiconductor compound using thiazole. The novel organic semiconductor compound including thiazole has liquid crystallinity and excellent thermal stability, and thus is provided to form an organic semiconductor layer in the organic thin film transistor. To this end, a silicon oxide layer is formed on a silicon substrate, and an organic semiconductor layer including thiazole is formed on the silicon oxide layer. In addition, source and drain electrodes are formed on both edge portions of the organic semiconductor layer. The organic thin film transistor using the organic semiconductor layer has an improved on/off ratio and excellent thermal stability. Also, a solution process can be applied in its manufacture. | 06-18-2009 |
20090255586 | ORGANIC SOLAR CELL AND METHOD OF FABRICATING THE SAME - An organic solar cell and a method of fabricating the same are provided. The organic solar cell includes a first electrode and a second electrode. An organic active layer is disposed between the first electrode and the second electrode. The organic active layer includes an concave-convex pattern in a surface adjacent to the second electrode. The concave-convex pattern may be formed by contacting an elastomer stamp and a top surface of the organic active layer. The elastomer stamp may be formed by molding using a template having a surface relief grating (SRG). The template may include a photoisomerization polymer layer, and the surface relief grating may be formed by irradiating interference light onto the photoisomerization polymer layer. The surface relief grating may be a blazed diffraction grating. | 10-15-2009 |
20100108996 | COMPOSITION FOR ORGANIC THIN FILM TRANSISTOR, ORGANIC THIN FILM TRANSISTOR FORMED BY USING THE SAME, AND METHOD FOR FORMING THE ORGANIC FILM TRANSISTOR - Provided are a composition for organic thin film transistors including a material including an anthracenyl group and a cross-linker including a maleimide group, an organic thin film transistor formed by using the composition, and a method for manufacturing the same. | 05-06-2010 |
20110177653 | THIAZOLE-BASED SEMICONDUCTOR COMPOUND AND ORGANIC THIN FILM TRANSISTOR USING THE SAME - Provided are an organic semiconductor compound using thiazole, and an organic thin film transistor having an organic semiconductor layer formed of the organic semiconductor compound using thiazole. The novel organic semiconductor compound including thiazole has liquid crystallinity and excellent thermal stability, and thus is provided to form an organic semiconductor layer in the organic thin film transistor. To this end, a silicon oxide layer is formed on a silicon substrate, and an organic semiconductor layer including thiazole is formed on the silicon oxide layer. In addition, source and drain electrodes are formed on both edge portions of the organic semiconductor layer. The organic thin film transistor using the organic semiconductor layer has an improved on/off ratio and excellent thermal stability. Also, a solution process can be applied in its manufacture. | 07-21-2011 |
20120190139 | PREPARATION METHOD FOR REDUCED GRAPHENE OXIDE USING SULFONYL HYDRAZIDE-BASED REDUCING AGENT AND OPTOELECTRONIC DEVICES THEREOF - A method for fabricating a graphene thin film by reducing graphene oxide and a method for fabricating an optoelectronic device using the same are provided. The method for fabricating a graphene thin film comprises: (a) preparing graphene oxide; (b) preparing graphene through reducing the graphene oxide by a sulfonyl hydrazide-based reducing agent; (c) preparing a graphene dispersed solution by dispersing the graphene into an organic solvent; and (d) fabricating a graphene thin film by applying the graphene dispersed solution. The sulfonyl hydrazide-based reducing agent may be a compound having a sulfonyl hydrazide substituent of Chemical Formula 1 in the present disclosure in which A may be any one in Chemical Formula 2 in the present disclosure. | 07-26-2012 |
20140110689 | SEMI-FLUOROALKYL GROUP SUBSTITUTED ORGANIC SEMICONDUCTOR POLYMER AND ORGANIC THIN FILM TRANSISTOR INCLUDING THE SAME - A semi-fluoroalkyl group substituted organic semiconductor polymer and an organic thin film transistor including the same are disclosed. A structure in which hydrogen of only a terminal of an alkyl group is substituted with fluorine exhibits significantly increased hole mobility, and significantly improved properties in terms of thermal stability and chemical stability, as compared to a structure in which all hydrogens coupled to a thiophene ring are substituted with fluorine, or a structure in which hydrogen of the terminal thereof is not substituted with fluorine and only hydrogens of the remaining portion are coupled to the thiophene ring. | 04-24-2014 |
Patent application number | Description | Published |
20090119105 | Acoustic Model Adaptation Methods Based on Pronunciation Variability Analysis for Enhancing the Recognition of Voice of Non-Native Speaker and Apparatus Thereof - The example embodiment of the present invention provides an acoustic model adaptation method for enhancing recognition performance for a non-native speaker's speech. In order to adapt acoustic models, first, pronunciation variations are examined by analyzing a non-native speaker's speech. Thereafter, based on variation pronunciation of a non-native speaker's speech, acoustic models are adapted in a state-tying step during a training process of acoustic models. When the present invention for adapting acoustic models and a conventional acoustic model adaptation scheme are combined, more-enhanced recognition performance can be obtained. The example embodiment of the present invention enhances recognition performance for a non-native speaker's speech while reducing the degradation of recognition performance for a native speaker's speech. | 05-07-2009 |
20090138272 | WIDEBAND AUDIO SIGNAL CODING/DECODING DEVICE AND METHOD - Disclosed is a wideband audio signal coding/decoding device and method that may code a wideband audio signal while maintaining a low bit rate. | 05-28-2009 |
20090240490 | METHOD AND APPARATUS FOR CONCEALING PACKET LOSS, AND APPARATUS FOR TRANSMITTING AND RECEIVING SPEECH SIGNAL - A method and apparatus for concealing frame loss and an apparatus for transmitting and receiving a speech signal that are capable of reducing speech quality degradation caused by packet loss are provided. In the method, when loss of a current received frame occurs, a random excitation signal having the highest correlation with a periodic excitation signal (i.e., a pitch excitation signal) decoded from a previous frame received without loss is used as a noise excitation signal to recover an excitation signal of a current lost frame. Furthermore, a third, new attenuation constant (AS) is obtained by summing a first attenuation constant (NS) obtained based on the number of continuously lost frames and a second attenuation constant (PS) predicted in consideration of change in amplitude of previously received frames to adjust the amplitude of the recovered excitation signal for the current lost frame. Speech quality degradation caused by packet loss can be reduced for enhanced communication quality in a packet network environment with continuous frame loss. | 09-24-2009 |
20110280337 | APPARATUS AND METHOD FOR CODING SIGNAL IN A COMMUNICATION SYSTEM - Provided is an apparatus and method for encoding a voice and audio signal by expanding a modified discrete cosine transform (MDCT) based CODEC to a wideband and a super-wideband in a communication system. The apparatus for encoding a signal in a communication system, includes a converter configured to convert a time domain signal corresponding to a service to be provided to users to a frequency domain signal, a quantization and normalization unit configured to calculate and quantize gain of each subband in the converted frequency domain signal and normalize a frequency coefficient of the each subband, a search unit configured to search patch information of each subband in the converted frequency domain signal using the normalized frequency coefficient, and a packetizer configured to packetize the quantized gain and the searched patch information and encode gain information of each subband in the frequency domain signal. | 11-17-2011 |
20130262098 | VOICE ANALYSIS APPARATUS, VOICE SYNTHESIS APPARATUS, VOICE ANALYSIS SYNTHESIS SYSTEM - A speech analysis apparatus is provided. An F0 extraction part extracts a pitch value from speech information. A spectrum extraction part extracts spectrum information from the speech information. An MVF extraction part extract a maximum voiced frequency and allows boundary information for respectively filtering a harmonic component and a non-harmonic component to be obtained. According to the speech analysis apparatus, speech synthesis apparatus, and speech analysis synthesis system of the present invention, speech that is closer to the original voice and is more natural may be synthesized. Also, speech may be represented with less data capacity. | 10-03-2013 |
20130262122 | SPEECH RECEIVING APPARATUS, AND SPEECH RECEIVING METHOD - Disclosed is a speech receiving apparatus. A low-band PLC module and a synthesis filter reconstructs a low-band speech signal of a lost frame from a previous good frame. A high-band PLC module reconstructs a high-band speech signal of the lost frame from the previous good frame. A transforming part transforms the low-band speech signal into a frequency range. A bandwidth extending part generates at least an extended MDCT coefficient as information for the high-band speech signal from the low-band speech signal transformed by the transforming part. A smoothing part smoothes the extended MDCT coefficient. An inverse transforming part inversely transforms the extended MDCT coefficient smoothed by the smoothing part to a time domain. A synthesizing part synthesizes the low-band speech signal, and the high-band speech signal which is inverse-transformed by the inverse transforming part and reconstructed, to output a wideband speech signal. | 10-03-2013 |
20130262129 | METHOD AND APPARATUS FOR AUDIO ENCODING FOR NOISE REDUCTION - A method and apparatus for audio signal encoding for noise reduction are provided. The method includes: receiving an audio signal and performing modified discrete cosine transformation (MDCT) on the audio signal to convert the audio signal into a long block or a short block; reducing noise included in the audio signal in accordance with the long block or the short block; and performing advanced audio coding (AAC) on the long block or the short block in which noise is reduced. | 10-03-2013 |
20130311182 | APPARATUS FOR CORRECTING ERROR IN SPEECH RECOGNITION - An apparatus for correcting errors in speech recognition is provided. The apparatus includes a feature vector extracting unit extracting feature vectors from a received speech. A speech recognizing unit recognizes the received speech as a word sequence on the basis of the extracted feature vectors. A phoneme weighted finite state transducer (WFST)-based converting unit converts the recognized word sequence recognized by the speech recognizing unit into a phoneme WFST. A speech recognition error correcting unit corrects errors in the converted phoneme WFST. The speech recognition error correcting unit includes a WFST synthesizing unit modeling a phoneme WFST transferred from the phoneme WFST-based converting unit as pronunciation variation on the basis of a Kullback-Leibler (KL) distance matrix. | 11-21-2013 |
20130317812 | METHOD AND DEVICE FOR BANDWIDTH EXTENSION - Method and device of extending a signal band of a voice or audio signal are provided. The bandwidth extension method includes the steps of: performing a modified discrete cosine transform (MDCT) process on an input signal to generate a first transform signal; generating a second transform signal and a third transform signal on the basis of the first transform signal; generating normalized components and energy components of the first transform signal, the second transform signal, and the third transform signal therefrom; generating an extended normalized component from the normalized components and generating an extended energy component from the energy components; generating an extended transform signal on the basis of the extended normalized component and the extended energy component; and performing an inverse MDCT (IMDCT) process on the extended transform signal. | 11-28-2013 |
20150071445 | STEREO EXTENSION APPARATUS AND METHOD - Disclosed herein are a stereo extension apparatus and method. The apparatus includes a database that stores predetermined information as a result of Gaussian mixture model (GMM) training or hidden Markov model (HMM) training; a modified discrete cosine transform (MDCT) transformer that transforms a mono signal through MDCT, a feature parameter extractor that extracts a feature parameter of the mono signal from an MDCT coefficient output from the MDCT transformer, a side signal energy estimator that estimates subband energy of a side signal with reference to information stored in the database based on the feature parameter; an energy controller that obtains the MDCT coefficient of a side signal estimated from the subband energy of the estimated side signal, an inverse MDCT transformer that obtains an estimated side signal by transforming the MDCT coefficient of the estimated side signal through inverse MDCT. | 03-12-2015 |
Patent application number | Description | Published |
20080292522 | Method for Synthesizing Electrode Material Using Polyol Process - Disclosed herein is an electrode material obtained using a polyol process and a synthesis method thereof. The synthesis method includes the steps of preparing a mixed solution by mixing a transition metal compound, a polyacid anionic compound and a lithium compound with a polyol solvent; and obtaining a resultant product by reacting the mixed solution in a heating apparatus. In conventional methods of synthesizing an electrode material, such as the sol-gel method and the solid reaction method, the electrode material is synthesized through a heat treatment process, which is a post-process. However, in the method of synthesizing an electrode material according to the present invention, there is an advantage in that the electrode material, which has crystallinity due to a structure such as an olivine structure or a nasicon structure, can be synthesized using a polyol process at a low temperature without performing a heat treatment process, which is a post-process. Moreover, there are advantages in that the nanoelectrode material synthesized by the method according to the present invention has a high crystallinity, uniform particles, and a structure having a diameter ranging from several nanometers to several micrometers. Further, according to the present invention, the electrode material has a high electrochemical stability such that the discharge capacity of the electrode material is not greatly decreased even though the initial discharge capacity thereof is high and it is charged and discharged many times. | 11-27-2008 |
20110135564 | HIGH-CAPACITY ANODE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND PROCESS FOR SYNTHESIZING THE SAME - is the present invention features a high-capacity anode material for rapidly chargeable and dischargeable lithium secondary batteries, which is composed of Li | 06-09-2011 |
20130177810 | METHOD FOR SYNTHESIZING NANO SCALE ELECTRODE MATERIALS USING AN ULTRA-FAST COMBUSTION METHOD, AND NANO SCALE ELECTRODE MATERIALS SYNTHESIZED BY THE METHOD - Provided are embodiments of a method of synthesizing nano scale electrode materials using an ultrafast combustion technique and nano scale electrode materials synthesized using the method. The method does not require a process of annealing reaction products required for synthesis of electrode materials or any other additional processes, such as cleaning, filtering, and drying processes, so that it can take only several seconds to several minutes to obtain a resultant product. | 07-11-2013 |
20140000100 | POSITIVE ELECTRODE ACTIVE MATERIAL HAVING IMPROVED SAFETY AND LIFETIME CHARACTERISTICS AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME | 01-02-2014 |
Patent application number | Description | Published |
20100206367 | METHOD FOR FABRICATING SILICON NANO WIRE, SOLAR CELL INCLUDING SILICON NANO WIRE AND METHOD FOR FABRICATING SOLAR CELL - A method for fabricating a silicon nano wire, a solar cell including the silicon nano wire and a method for fabricating the solar cell. The solar cell includes a substrate, a first++-type poly-Si layer formed on the substrate, a first-type silicon nano wire layer including a first-type silicon nano wire grown from the first++-type poly-Si layer, an intrinsic layer formed on the substrate having the first-type silicon nano wire layer, and a second-type doping layer formed on the intrinsic layer. | 08-19-2010 |
20120103420 | CU-IN-ZN-SN-(SE,S)-Based Thin Film for Solar Cell and Preparation Method Thereof - A Cu-In-Zn-Sn-(Se,S)-based thin film for a solar cell and a preparation method thereof, and more particularly, to a Cu-In-Zn-Sn-(Se,S)-based thin film for a solar cell which can reduce an amount of In to be used and exhibit an excellent conversion efficiency and a preparation method thereof. | 05-03-2012 |
20130029450 | METHOD FOR MANUFACTURING SOLAR CELL - The present invention provides a method for manufacturing a solar cell capable of suppressing volatilization of selenium and deformation of a substrate during a manufacturing process. According to the present invention, the method for manufacturing the solar cell comprises the steps of: providing a substrate; forming a rear electrode on the substrate; forming a precursor film for a light absorption film on the rear electrode; forming a light absorption film by progressing a crystallization process for the precursor film for the light absorption film; forming a buffer film on the light absorption film; forming a window film on the buffer film, and forming an anti-reflection film on the window film; and partially patterning the anti-reflection film, and forming a grid electrode in a patterned area. Said precursor film for the light absorption film includes Cu—Zn—Sn—S (Cu | 01-31-2013 |
Patent application number | Description | Published |
20080295537 | Ice making apparatus and refrigerator having the same - An ice making apparatus which includes an ice making tray to produce ice and an ejector rotatably disposed at the ice making tray, comprising a plurality of ice making cells formed in the ice making tray, wherein each of the ice making cells includes a freezing portion in which ice is produced and a buffering portion which is formed as a specified space at one side of the freezing portion to prevent water of the freezing portion from flowing out of the ice making tray. Accordingly, even in a refrigerator having the ice making apparatus installed on a rear surface of the door, the ice making apparatus can permanently provide an effect of preventing water inside the ice making cells from flowing out of the ice making tray due to an opening/closing operation of the door. | 12-04-2008 |
20080295539 | Ice maker and refrigerator having the same - A refrigerator includes a refrigerator main body having a storage chamber, a door coupled to the refrigerator main body to be opened or closed, a cool air supplying device which generates cool air, an ice maker including an ice making tray having ice making cells to produce ice and a cool air guide member installed in the door, coupled to the ice making tray and having a cool air line that guides the cool air supplied from the cool air supplying device to flow around the ice making tray. The cool air line disposed on the cool air guide member to supply the ice making tray guides the cool air supplied from the cool air supplying device to move along the surrounding of the ice making tray, thereby uniformly cooling down the ice making tray. | 12-04-2008 |
20090126392 | Water tank for dispenser and refrigerator having the same - A water tank for a dispenser capable of improving convenience when the user injects water into the water tank and a refrigerator having the same are disclosed. The water tank for a dispenser includes a reservoir which stores water and has an opening, a cover which covers the opening and has an injection port to inject water into the reservoir, and an opening/closing unit which opens and closes the injection port, the opening/closing unit being operated by loading of water above and into the injection port to open the injection port. | 05-21-2009 |
20090133428 | Ice supply device and refrigerator having an ice container capable of being separated from an ice breaking unit - An ice supply device and a refrigerator having the same are disclosed. The ice supply device includes an ice breaking unit having a breaker to break ice and a housing to house the breaker, an ice storage container removably coupled to the ice breaking unit and having a discharge hole to discharge ice, and a binding device to bind the ice storage container and the ice breaking unit. Accordingly, the ice storage container can be separated from the ice breaking unit, thereby facilitating handling of the ice storage container. | 05-28-2009 |
20090308095 | Ice maker and refrigerator having the same - Disclosed are an ice maker and a refrigerator having the same. The refrigerator includes a storage compartment, a storage compartment door for opening/closing the storage compartment, and an ice maker including an ice making tray for producing pieces of ice, and a water dispense cup for dispensing water supplied from a water supply pipe to the ice making tray. A water guide section is formed in the water dispense cup to guide the water, which is supplied from the water supply pipe, to a region below the water supply pipe so that ice pieces are prevented from being accumulated in the water dispense cup. | 12-17-2009 |
20100170284 | Water filter device and refrigerator having the same - A water filter device including a filter unit to receive water from an external water supply source and to purify the received water, a storage tank unit to store the water purified through the filter unit, and a case to receive the filter unit and the storage tank unit. | 07-08-2010 |
Patent application number | Description | Published |
20100050681 | Refrigerator having multiple icemakers - The refrigerator includes a main body forming the external appearance of the refrigerator, a freezing chamber and a cooling chamber divisionally provided in the main body, an ice making chamber separately provided in the cooling chamber to be thermally insulated, a first ice making unit provided in the ice making chamber to produce ice, and a second ice making unit provided in the freezing chamber to produce ice. | 03-04-2010 |
20100175398 | Refrigerator and control method thereof - A refrigerator and a control method thereof to control a rotational direction of an ice making motor to detect an ice full state of an ice storage without separating the ice from the ice maker. The refrigerator includes an ice making tray making ice therein, an ejector separating the ice, an ice storage storing the separated ice, an ice full state sensing lever detecting the ice full state of the ice storage, an ice making motor driving the ejector and the ice full state sensing lever, and a controller detecting the ice full state by driving the ice full state sensing lever by rotating the ice making motor in an ice moving direction, and detecting release of the ice full state by driving the ice full state sensing lever by rotating the ice making motor in the opposite direction after the ice full state is detected. | 07-15-2010 |
20140238502 | REFRIGERATOR AND METHOD OF CONTROLLING THE SAME - A refrigerator includes a carbonated water tank in which carbonated water is stored; a water level sensor sensing a water level of carbonated water stored in the carbonated water tank; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; and a controller, if the water level of carbonated water sensed by the water level sensor is less than or equal to a predetermined minimum water level, supplying the filtered water to the carbonated water tank, and if supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water. If the carbonated water is discharged, the controller controls the water level sensor to sense the water lever of the carbonated water stored in the carbonated water tank. | 08-28-2014 |
20140242218 | REFRIGERATOR AND METHOD OF CONTROLLING THE SAME - A refrigerator may include a carbonated water tank in which carbonated water is stored; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; a dispenser discharging the carbonated water or the filtered water; and a controller, if the filtered water is supplied to the carbonated water tank and supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water, wherein the controller stops producing the carbonated water if a discharge instruction of the filtered water is input from a user or if a door of the refrigerator is opened while the carbonated water is produced. Filtered water and carbonated water can be selectively taken, and when a user wants to use filtered water or opens a door of a refrigerator while carbonated water is produced, the refrigerator that stops production of carbonated water is provided so that the user can be prevented from misunderstanding that the refrigerator is broken. | 08-28-2014 |
20140242219 | REFRIGERATOR AND METHOD OF CONTROLLING THE SAME - Provided is a refrigerator including: a carbonated water tank in which carbonated water is stored; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; and a controller, if the water level of carbonated water sensed by a water level sensor is less than or equal to a predetermined minimum water level, supplying the filtered water to the carbonated water tank, and if supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water. If it is expected that the storage amount of the carbonated water is reduced or the user won't use the carbonated water for a while, carbonated water is automatically produced so that the user is not required to wait while the carbonate water is produced. | 08-28-2014 |
20150053271 | REFRIGERATOR AND METHOD OF CONTROLLING THE SAME - A refrigerator includes a carbonated water tank in which carbonated water is stored; a water level sensor sensing a water level of carbonated water stored in the carbonated water tank; a water tank supplying filtered water to the carbonated water tank; a carbon dioxide cylinder supplying carbon dioxide to the carbonated water tank; and a controller, if the water level of carbonated water sensed by the water level sensor is less than or equal to a predetermined minimum water level, supplying the filtered water to the carbonated water tank, and if supply of the filtered water is completed, supplying the carbon dioxide to the carbonated water tank so as to produce the carbonated water. If the carbonated water is discharged, the controller controls the water level sensor to sense the water lever of the carbonated water stored in the carbonated water tank. | 02-26-2015 |
Patent application number | Description | Published |
20090140267 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREOF - Disclosed are a semiconductor light emitting device comprising a single crystalline buffer layer and a manufacturing method thereof. The semiconductor light emitting device comprises a single crystalline buffer layer, and a compound semiconductor structure comprising III and V group elements on the single crystalline buffer layer. | 06-04-2009 |
20090196070 | LIGHT EMITTING APPARATUS AND LIGHT UNIT HAVING THE SAME - Provides are a light emitting apparatus and a light unit having the same. The light emitting apparatus comprises a light emitting device comprising a light emitting element and a plurality of external leads, and a plurality of electrode pads under the light emitting device. | 08-06-2009 |
20110049543 | LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD THEROF - Provides is a semiconductor light-emitting device. The semiconductor light-emitting device includes a first conduction-type cladding layer, an active layer, and a second conduction-type cladding layer, on a substrate. Portions of the substrate and the first conduction-type cladding layer are removed. According to the light-emitting device having the above-construction, damage to a grown epitaxial layer is reduced, and a size of an active layer increases, so that a light-emission efficiency increases. Even when a size of a light-emitting device is small, a short-circuit occurring between electrodes can be prevented. Further, brightness and reliability of the light-emitting device are improved. | 03-03-2011 |
20110103061 | LIGHT EMITTING APPARATUS AND LIGHT UNIT HAVING THE SAME - A light emitting apparatus includes a light emitting diode including a body with a light emitting diode chip packaged therein and a plurality of lead electrodes contacted with one side of the body and a board including a plurality of electrode pads connected to lower surfaces of the lead electrodes of the light emitting diode. The lower surfaces of the lead electrodes of the light emitting diode correspond to top surfaces of electrode pads of the board with same shapes. The lower surfaces of the lead electrodes of the light emitting diode are disposed within a region of top surfaces of the electrode pads of the board, respectively. | 05-05-2011 |
20120007136 | LIGHT EMITTING APPARATUS AND LIGHT UNIT HAVING THE SAME - Provides are a light emitting apparatus and a light unit having the same. The light emitting apparatus comprises a light emitting device comprising a light emitting element and a plurality of external leads, and a plurality of electrode pads under the light emitting device. | 01-12-2012 |
20120326203 | LIGHT EMITTING APPARATUS AND LIGHT UNIT HAVING THE SAME - Provides are a light emitting apparatus and a light unit having the same. The light emitting apparatus comprises a light emitting device comprising a light emitting element and a plurality of external leads, and a plurality of electrode pads under the light emitting device. | 12-27-2012 |
20140146549 | LIGHT EMITTING APPARATUS AND LIGHT UNIT HAVING THE SAME - Provided are a light emitting apparatus and a light unit having the same. The light emitting apparatus includes a light emitting device includes a light emitting element and a plurality of external leads, and a plurality of electrode pads under the light emitting device. | 05-29-2014 |
20140346438 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - Disclosed is a semiconductor light emitting device including a first conductive semiconductor layer including an n-type dopant, an active layer, and a second to sixth conductive semiconductor layers including a p-type dopant. The third to sixth conductive semiconductor layers includes an AlGaN-based semiconductor on the active layer, and the second conductive semiconductor layer includes a GaN-based semiconductor layer on the sixth conductive semiconductor layer. The active layer includes plurality of quantum barrier layers and plurality of quantum well layers and includes a cycle of 2 to 10. The plurality of quantum well layers include an InGaN semiconductor and at least one of the plurality of quantum barrier layers includes a GaN-based semiconductor. The sixth conductive semiconductor layer has a thickness of about 5 nm to about 100 nm. | 11-27-2014 |
Patent application number | Description | Published |
20100313912 | CLEANING APPARATUS AND DUST COLLECTING METHOD USING THE SAME - A cleaning apparatus and a dust collecting method using the same are provided. The cleaning apparatus includes a body, a brush unit rotatably provided at the body, a dust collecting unit to store contaminants, such as dust, swept by the brush unit, and a blowing unit to suction contaminants, such as dust, scattered by the brush unit and to move the suctioned contaminants to the dust collecting unit. | 12-16-2010 |
20120181099 | ROBOT CLEANER - A robot cleaner includes a main body, drive motors provided on the main body, each of the drive motors including a drive rotary shaft, drive wheels rotated by rotary force transmitted from the drive motors, gear units connecting the drive motors and the drive wheels, and wheel cover housings to support the drive wheels so that the drive wheels are pivotally rotated with respect to the main body, and pivot rotary shafts of the drive wheels and drive rotary shafts of the drive motors are coaxial with each other so as to achieve stable movement of the drive wheels. | 07-19-2012 |
20140067116 | SIDE BRUSH ASSEMBLY, ROBOT CLEANER AND CONTROL METHOD OF ROBOT CLEANER - A side brush assembly including a side arm capable of being exposed outside a main body and returning inside the main body and a side brush unit mounted to the side arm, a robot cleaner and a control method of the robot cleaner is provided. The robot cleaner includes a main body and at least one side brush assembly to increase a dust-removing area. The side brush assembly includes a side brush body, a side arm mounted to a bottom surface of the side brush body and configured to be exposed outside the main body, a side brush unit rotatably mounted to the side arm, a lever configured to rotate together with the side arm, a cam configured to rotate by receiving driving force from a driving motor, and an elastic member connecting the lever and the cam to rotate the lever by elastic force thereof. | 03-06-2014 |
Patent application number | Description | Published |
20110080425 | SYSTEM FOR PROVIDING MULTI-ANGLE BROADCASTING SERVICE - Provided is a system for providing a multi-angle broadcasting service. A transmission apparatus may transmit, to a reception apparatus, a plurality of source images photographed at a plurality of angles and a multi-screen image including the plurality of source images. The reception apparatus may receive the multi-screen image and decode a source image based on a user selection. | 04-07-2011 |
20110106915 | CHANNEL SERVER, CHANNEL PREDICTION SERVER, TERMINAL, AND METHOD FOR FAST CHANNEL SWITCHING USING PLURALITY OF MULTICASTS INTEROPERATING WITH PROGRAM RATING PREDICTION - Provided are a channel server, a channel prediction server, a terminal, and a method for a fast channel switching. The channel server may generate at least one delay multicast stream from an original multicast stream by applying a different delay value based on channel preference information, and may determine an optimal multicast stream from the at least one delay multicast stream, and transmit, to a terminal, response information associated with the optimal multicast stream in response to query information associated with the original multicast stream received from the terminal. | 05-05-2011 |
20110125917 | OVERLAY MULTICAST SYSTEM FOR GROUP MEDIA TRANSMISSION APPLICATION SERVICE COMPOSED OF MULTIPLE STREAM - Disclosed is an overlay multicast system for a group media transmission application service composed of a multiple stream, wherein, when an additional stream is newly transferred to a predetermined node in an overlay network, the overlay multicast system transmitting a plurality of streams in the overlay network generates a multiple stream by muxing a main stream inputted from a parent node and the additional stream based on stream correlation information in the predetermined node, and transmits the generated multiple stream to a child node. | 05-26-2011 |
Patent application number | Description | Published |
20100313912 | CLEANING APPARATUS AND DUST COLLECTING METHOD USING THE SAME - A cleaning apparatus and a dust collecting method using the same are provided. The cleaning apparatus includes a body, a brush unit rotatably provided at the body, a dust collecting unit to store contaminants, such as dust, swept by the brush unit, and a blowing unit to suction contaminants, such as dust, scattered by the brush unit and to move the suctioned contaminants to the dust collecting unit. | 12-16-2010 |
20120181099 | ROBOT CLEANER - A robot cleaner includes a main body, drive motors provided on the main body, each of the drive motors including a drive rotary shaft, drive wheels rotated by rotary force transmitted from the drive motors, gear units connecting the drive motors and the drive wheels, and wheel cover housings to support the drive wheels so that the drive wheels are pivotally rotated with respect to the main body, and pivot rotary shafts of the drive wheels and drive rotary shafts of the drive motors are coaxial with each other so as to achieve stable movement of the drive wheels. | 07-19-2012 |
20140026338 | AUTONOMOUS CLEANING DEVICE - An autonomous cleaning device that may reduce noise caused by friction with a floor includes: a main body having an opening; a brush unit that is rotatably disposed in the opening of the main body; and a blade assembly that guides introduction of dust swept up by the brush unit, the blade assembly including: a blade that guides dust toward an inner side of the main body; a support member that is coupled to the blade so as to support the blade and that has one side in which a coupling groove is formed; and an insertion member that is inserted into the coupling groove of the support member. The autonomous cleaning device can prevent noise from occurring due to abnormal contact between the blade and the floor while the autonomous cleaning device travels. | 01-30-2014 |
Patent application number | Description | Published |
20110080425 | SYSTEM FOR PROVIDING MULTI-ANGLE BROADCASTING SERVICE - Provided is a system for providing a multi-angle broadcasting service. A transmission apparatus may transmit, to a reception apparatus, a plurality of source images photographed at a plurality of angles and a multi-screen image including the plurality of source images. The reception apparatus may receive the multi-screen image and decode a source image based on a user selection. | 04-07-2011 |
20110080908 | APPARATUS AND METHOD FOR CONTROLLING MULTICAST IN MULTI HOP NETWORKS - Disclosed is a multicast controlling apparatus and method in a multi hop network. The multicast controlling apparatus in the multi hop network includes a packet determining unit to receive a packet from a group management query device or a station, and to determine whether the received packet is a group management protocol packet, a packet type distinguishing unit to distinguish a type of the received packet when the received packet is determined as the group management protocol packet, and a packet transmitting unit to transmit the packet to a second port excluding a first port that receives the query message, when the received packet is determined as the query message. | 04-07-2011 |
20110082691 | BROADCASTING SYSTEM INTERWORKING WITH ELECTRONIC DEVICES - Provided is a technology of controlling an electronic device using a broadcasting system. A control signal may be modulated to an audible frequency band and thereby be transmitted from a transmission apparatus to a reception apparatus using the broadcasting system. The reception apparatus may reproduce the control signal of the audible frequency band. A controller may perform a control operation based on the control signal. | 04-07-2011 |
20110125917 | OVERLAY MULTICAST SYSTEM FOR GROUP MEDIA TRANSMISSION APPLICATION SERVICE COMPOSED OF MULTIPLE STREAM - Disclosed is an overlay multicast system for a group media transmission application service composed of a multiple stream, wherein, when an additional stream is newly transferred to a predetermined node in an overlay network, the overlay multicast system transmitting a plurality of streams in the overlay network generates a multiple stream by muxing a main stream inputted from a parent node and the additional stream based on stream correlation information in the predetermined node, and transmits the generated multiple stream to a child node. | 05-26-2011 |
20120154531 | APPARATUS AND METHOD FOR OFFERING 3D VIDEO PROCESSING, RENDERING, AND DISPLAYING - Disclosed is a 3D video display device providing a first video inputted into a left eye and a second video inputted into a right eye, the 3D video display device including: a control information acquiring device receiving control information; and a 3D broadcasting receiving device controlling a binocular disparity between the first video and the second video by using the control information transferred from the control information acquiring device as a key. According to the present invention, since a 3D video is reconfigured considering a distance between the user and the 3D video display device acquired by a control information acquiring device, a user's preference, or the like, it is possible to provide the 3D video in which a user can perceive optimal depth perception. | 06-21-2012 |
20120167140 | SYSTEM AND METHOD OF PROVIDING PERSONALIZED SERVICE - Provided is a mobile device for a personalized service including: a media receiving unit acquiring broadcasting contents during expressing in a broadcast viewing terminal device; and a comparing unit generating a media ID based on the broadcasting contents acquired in the media receiving unit, comparing the generated media ID with a media ID in a media ID list received from a media ID server to identify a channel ID, and transmitting a personalized service request message including the identified channel ID and a user ID to a personalized information providing server to request a personalized service. | 06-28-2012 |
20130073261 | SENSOR SIGNAL PROCESSING APPARATUS AND SENSOR SIGNAL DISTRIBUTED PROCESSING SYSTEM INCLUDING THE SAME - There are provided a sensor data processing apparatus, and a sensor data distributed processing system including the same. The sensor data distributed processing system includes: a plurality of sensors; one or more sensor data processing apparatuses each configured to compress a sensor signal received from at least one of a plurality of sensors, to create a compressed sensor signal, to adjust the sensor signal based on a reliability of the sensor signal, to analyze the adjusted sensor signal to provide analysis data, to synchronize the compressed sensor signal with the analysis data, to transmit the synchronized sensor data, and to provide management data to a corresponding sensor; and a sensor data management apparatus configured to monitor synchronized sensor data received from each sensor data processing apparatus, and to provide management data to the sensor data processing apparatus. | 03-21-2013 |
20150063450 | APPARATUS FOR VIDEO PROCESSING AND METHOD FOR THE SAME - Disclosed are an apparatus, a method, and a system for compressing and transmitting video. The video processing apparatus comprises an overlap area extraction part being provided with at least one input video which is acquired by at least one video acquisition device and real space video data stored in a data base, and extracting overlap areas by matching the input video with the real space video data; and a video compression part compressing, based on the overlap areas, the at least one input video by using at least one reference frame based on information included in the real space video data. | 03-05-2015 |
Patent application number | Description | Published |
20100008667 | AUTOMATIC OPTICAL POWER CONTROL METHOD FOR OLT IN PON - Provided is an automatic optical power control method for an optical line terminal (OLT) of a passive optical network (PON). The automatic optical power control method includes at the OLT, measuring an allowable range of the optical power allowing a normal network operation on the PON, at the OLT, setting an optimum optical signal level within the measured allowable range of the optical power, and at the OLT, adjusting a power level of a transmitter to the set optimum optical signal level. Accordingly, an appropriate power level can be selected depending on an optical distribution network (ODN) structure to drive the transmitter. Also, when the entire optical network units are deactivated, a laser of the transmitter is turned off to thereby minimize unnecessary power consumption at the OLT. | 01-14-2010 |
20110058810 | OPTICAL NETWORK UNIT (ONU) AND METHOD OF OPERATING THE ONU - Provided is an Optical Network Unit (ONU) and a method of operating the ONU. The ONU may include: a measurement unit to measure a downstream optical signal strength of downstream data received from an Optical Line Termination (OLT) via an optical splitter; a determination unit to determine an upstream optical signal strength based on the measured downstream optical signal strength; and a communication unit to transmit, to the OLT via the optical splitter, upstream data generated based on the determined upstream optical signal strength. | 03-10-2011 |
20110099545 | METHOD AND APPARATUS FOR SIMULTANEOUSLY UPDATING SOFTWARE INSTALLED IN TERMINALS IN COMMUNICATION SYSTEM - Provided is a method of controlling a server to simultaneously update software installed in a plurality of terminals in a communication system, the method including: receiving an update message from each of the terminals; determining a size of a transmission window based on the update message; processing an image of software to be transmitted to the plurality of terminals, based on the size of the transmission window; and transmitting the image of software to the plurality of terminals. | 04-28-2011 |
20110103382 | METHOD AND APPARATUS FOR FILTERING MULTICAST PORT IDENTIFIER IN GIGABIT-CAPABLE PASSIVE OPTICAL NETWORK (GPON) SYSTEM - Provided is an apparatus for filtering a multicast port identifier, the apparatus including: a processor to receive an Internet Group Management Protocol (IGMP) message from a switching unit, to verify a traffic reception request received from a subscriber terminal based on the IGMP message, and to store a value in a filtering register based on the traffic reception request; and an Optical Network Unit (ONU) Media Access Control (MAC) manager to filter a packet to be forwarded to the subscriber terminal, using a port identifier for traffic forwarding and reception with the subscriber terminal, and using the value of the filtering register indicating an existence of traffic to be forwarded to the subscriber terminal. | 05-05-2011 |
20110129218 | OPTICAL NETWORK TERMINAL, METHOD FOR TIME SYNCRONIZATION THEREOF, OPTICAL LINE TERMINAL, AND METHOD FOR MANAGING NETWORK THEREOF - A method for synchronizing time by an optical network terminal (ONT) in a passive optical network system is provided. The method includes: receiving a ranging request message including a first current time of an optical line terminal (OLT); calculating a first compensation time when a transmission delay is compensated at a time that the ranging request message is received; transmitting a serial number response message to the OLT; calculating a second compensation time when the transmission delay is compensated at a time when the serial number response message is transmitted; receiving a ranging time message including a second current time when the serial number response message from the OLT is received; calculating an offset time from the first current time, the second current time, the first compensation time, and the second compensation time; and synchronizing a clock of the ONT and a clock of the OLT based on the offset time. | 06-02-2011 |
20110129223 | APPARATUS AND METHOD FOR ALLOCATING DYNAMIC BANDWIDTH - A dynamic bandwidth allocation apparatus of a passive optical network detects guarantee agreement information of each transmission container (T-CONT) queue of at least one optical network unit (ONU) that is connected to the dynamic bandwidth allocation apparatus in order to dynamically allocate a bandwidth is provided. The dynamic bandwidth allocation apparatus sets a queue threshold according to a buffer size of each T-CONT queue of at least one ONU, and calculates a service level agreement (SLA) parameter of at least one ONU using guarantee agreement information and a queue threshold. The dynamic bandwidth allocation apparatus allocates a bandwidth for every frame of each ONU using each SLA parameter of at least one ONU. | 06-02-2011 |
20120045214 | METHOD AND APPARATUS FOR BURST MODE CLOCK AND DATA RECOVERY - Provided is an optical line terminator (OLT) to recover packet data and a clock from an optical signal including a silent interval. The OLT may receive packet data and a clock from at least one optical network unit (ONU). Even in a silent interval in which the at least one ONU does not transmit packet data, the OLT may successfully recover the clock. | 02-23-2012 |
20120163799 | Method for Transmitting OAM Message and Processing Error in PON System - A method of transmitting an Operations, Administration and Maintenance (OAM) message and of processing an error in a Passive Optical Network (PON) system is provided. Using an OAM packet format that may be used in common in the PON system, a process of transmitting or receiving an OAM message may be simplified, an efficiency of the process may be increased, and an Optical Network Unit (ONU) may be managed at a high speed. | 06-28-2012 |
20120163805 | OPTICAL NETWORK UNIT AND METHOD OF SAVING POWER THEREOF - Provided is an optical network unit saving power. The optical network unit may include a processor checking whether at least one downward physical block, the upward physical block and a data switching block operate in an idle mode, sequentially transiting at least one downward physical block, an upward physical block and a data switching block to a sleep mode according to the checking result and sequentially transiting an optical transmission-reception block and the medium access control block to a sleep mode by judging whether or not a medium access control block transits to a sleep mode. | 06-28-2012 |
20120163806 | OPTICAL LINE TERMINAL DEVICE AND OPTICAL NETWORK DEVICE - Disclosed is an optical line terminal device which includes a media access control (MAC) block configured to convert Ethernet packets and port identifiers into a downstream frame or an upstream frame into the Ethernet packets and the port identifiers; and a central processing unit (CPU) configured to control the MAC block, wherein the MAC block includes a traffic monitoring part which is configured to receive the port identifiers and to provide identifier information of an optical network device according to the port identifiers; and wherein the CPU is configured to generate a control frame for controlling a power supplied to the optical network device, according to identifier information of the optical network device. | 06-28-2012 |
20120163830 | OPTICAL REPEATER AND OPTICAL SIGNAL AMPLIFYING METHOD THEREOF - Disclosed is an optical amplifier which includes an upward optical amplifier configured to amplify an input upward optical signal of an input optical signal; and a control circuit configured to control an operation of the upward optical amplifier according to whether an upward stream is detected from the input upward optical signal. | 06-28-2012 |
20130188947 | APPARATUS AND METHOD FOR MONITORING OPTICAL LINE - An apparatus and method for monitoring an optical line is provided. The optical line monitoring apparatus may include a comparison unit to extract first identification information about an optical network terminal (ONT) from reflected data that is reflected and received from the optical line, and to compare the extracted first identification information to predetermined second identification information about the ONT, and a processor to analyze a state of the optical line using the reflected data when the first identification information is identical to the second identification information. | 07-25-2013 |
20130188953 | OPTICAL NETWORK SYSTEM AND METHOD FOR CONTROLLING OPTICAL NETWORK SYSTEM - An optical network system for controlling a passive optical network (PON) in which at least one symmetric optical subscriber terminal and at least one asymmetric optical subscriber terminal coexist is provided. | 07-25-2013 |
20140059531 | METHOD AND APPARATUS FOR UPDATING TERMINAL SOFTWARE - Disclosed are a method and apparatus for updating a terminal software version. The method includes providing software update start information including window size information and software image storage space information to a plurality of terminals, receiving first response information in accordance with provision of the software update start information from the plurality of terminals, and providing software update information in accordance with the window size information to the plurality of terminals in units of sections. | 02-27-2014 |
20140133843 | OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT FOR SUPPORTING SLEEP MODE THEREOF - An optical line terminal is provided which includes an upward band allocating unit configured to send an upward bandwidth allocation map to an optical network unit and to determine a sleep mode of the optical network unit according to whether a response message corresponding to the upward bandwidth allocation map is received; and an alarm unit configured to determine an upward bandwidth allocation map transfer operation as a normal operation according to an operation of the sleep mode. | 05-15-2014 |
20140178072 | OPTICAL LINE TERMINAL AND METHOD OF REGISTERING OPTICAL NETWORK TERMINAL THEREOF - The inventive concept relates to an optical line terminal registering optical network terminals having overlapping serial numbers. The optical line terminal may include a memory storing serial number information of optical network terminals of which a registration is completed in a storage region; and a control part that if a serial number by a serial number request is received from optical network terminals, the received serial number is compared with the serial number information of the memory and if they overlap each other, a previously set preliminary identifier is allocated to the optical network terminal having an overlapping serial number. | 06-26-2014 |
20140270768 | OPTICAL LINE TERMINAL OF PASSIVE OPTICAL NETWORK, AND METHOD FOR CONTROLLING UPSTREAM BAND USING THE SAME - Disclosed are an apparatus and a method capable of adjusting an upstream band for a corresponding ONU by detecting a quantity of bands occupied by a packet, not an effective user packet, among upstream transmission bands for each target object of allocation of each band in the OLT to examine whether a queue report is normal, and detecting an ONU, which transmits an abnormal queue report, according to the examination. An OLT of a PON according to an exemplary embodiment of the present disclosure includes: a frame monitoring unit configured to monitor upstream frame data received for each T-CONT; an error detection unit configured to determine whether a queue report error is generated for each T-CONT according to a result of the monitoring; and a band allocation controller configured to allocate an upstream band for an ONU, in which the queue report error is generated, separately from a normal ONU. | 09-18-2014 |
Patent application number | Description | Published |
20090309827 | METHOD AND APPARATUS FOR AUTHORING TACTILE INFORMATION, AND COMPUTER READABLE MEDIUM INCLUDING THE METHOD - The present invention relates to a method and apparatus for authoring tactile information that generates a tactile video for representing tactile information in the form of an intensity value of a pixel in order to author tactile information. More particularly, the present invention relates to a method and apparatus for authoring tactile information that represents an intensity value of a pixel of a tactile video in a drawing manner on a tactile video input window while outputting and referring to audiovisual media. The present invention provides an apparatus for authoring a tactile video that represents information about driving strength of an actuator array of a tactile display apparatus in the form of an intensity value of a pixel. The apparatus includes a tactile video generating unit that including a configuration module and a tactile video authoring module. The configuration module performs configuration to author a tactile video. The tactile video authoring module includes a video clip playback window that outputs information about audiovisual media, such as a video clip or a text, becoming a base of authoring the tactile video by frames, and a tactile video input window to which an intensity value of each of pixels of the tactile video is input in a drawing manner. The tactile video is generated by frames. | 12-17-2009 |
20100278512 | NODE STRUCTURE FOR REPRESENTING TACTILE INFORMATION, AND METHOD AND SYSTEM FOR TRANSMITTING TACTILE INFORMATION USING THE SAME - The present invention relates to a node structure for representing tactile information, and method and system for transmitting tactile information using the same. More particularly, the present invention relates to a node structure that represents tactile information for driving a tactile display device including an array of drivers as a tactile video, and to method and system for transmitting tactile information using the same. The invention provides a node structure for representing information for driving a driver array of a tactile display device. The node structure includes: a url field that indicates the position of the tactile video storing information on the driving strength of the driver array as intensity values of pixels! a start time field that indicates the playback start time of the tactile video; and a stop time field that indicates the playback stop time of the tactile video. In addition, the invention provides method and system for transmitting tactile information using the node structure. | 11-04-2010 |
20120092146 | METHOD FOR EXPRESSING HAPTIC INFORMATION USING CONTROL INFORMATION, AND SYSTEM FOR TRANSMITTING HAPTIC INFORMATION - Provided is a method for expressing haptic information using control information, and a system for transmitting haptic information. In the method for expressing haptic information using control information, a tactile video is generated from tactile information for driving a drive array of a tactile device; force feedback data are generated from force feedback information for driving an actuator of a force feedback device; object data are generated to produce a scene descriptor that defines time positions of the tactile video, force feedback data, and multimedia information; and a stream file is generated by encoding the object data and multiplexing the encoded object data. The method comprises: a step of storing control information containing features and specifications of a haptic device including the tactile device and the force feedback device; and a step of expressing information of the scene descriptor through the haptic device with reference to the control information. | 04-19-2012 |