Patent application number | Description | Published |
20120329965 | ADVANCED TRANSITION METAL CATALYTIC SYSTEMS IN TERMS OF COMONOMER INCORPORATIONS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND A-OLEFINS USING THE SAME - Provided is a homogeneous catalytic system for use in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, and more particularly a Group 4 transition metal compound in which a cyclopentadienyl derivative 3,4-positions of which are substituted with alkyls and an electron-donating substituent are crosslinked around a Group 4 transition metal. Also provided is a method of preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having high molecular weight, under high-temperature solution polymerization conditions using the catalytic system including such a transition metal compound and a co-catalyst composed of an aluminum compound, a boron compound or a mixture thereof. The catalyst according to present invention has high thermal stability and enables the incorporation of α-olefin, and is thus effective in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having various properties, in industrial polymerization processes. | 12-27-2012 |
20130237674 | ADVANCED TRANSITION METAL CATALYTIC SYSTEMS IN TERMS OF COMONOMER INCORPORATIONS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND ALPHA-OLEFINS USING THE SAME - Provided is a homogeneous catalytic system for use in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, and more particularly a Group 4 transition metal compound in which a cyclopentadienyl derivative 3,4-positions of which are substituted with alkyls and an electron-donating substituent are crosslinked around a Group 4 transition metal. Also provided is a method of preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having high molecular weight, under high-temperature solution polymerization conditions using the catalytic system including such a transition metal compound and a co-catalyst composed of an aluminum compound, a boron compound or a mixture thereof. The catalyst according to present invention has high thermal stability and enables the incorporation of α-olefin, and is thus effective in preparing an ethylene homopolymer or a copolymer of ethylene and α-olefin, having various properties, in industrial polymerization processes. | 09-12-2013 |
Patent application number | Description | Published |
20090135947 | METHOD OF SELECTING CANDIDATE VECTOR AND METHOD OF DETECTING TRANSMISSION SYMBOL - The present invention relates to a method of detecting a candidate vector and a method of detecting a transmission symbol using the same. According to an embodiment of the present invention, in a multiple input multiple output (MIMO) system using spatial multiplexing (SM), a receiver selects candidate vectors corresponding to a layer located at a last row among a plurality of rearranged layers, and sequentially ranks constellation dots of a next layer for each of the selected candidate vectors. Then, a plurality of arbitrary constellation dots are selected from the ranked constellation dots, accumulated costs of the arbitrary constellation dots are calculated, and a candidate vector is selected in correspondence with a constellation dot having a minimal accumulated cost. Then, a new arbitrary constellation dot is selected in place of the constellation dot selected as the candidate vector, an accumulated cost of the selected arbitrary constellation dot is compared with accumulated costs of the other arbitrary constellation dots, and another candidate vector is selected. | 05-28-2009 |
20090135964 | METHOD OF CALCULATING LOG-LIKELIHOOD RATIO AND METHOD OF DETECTING TRANSMISSION SIGNAL - The present invention relates to a method of calculating a log-likelihood ratio and a method of detecting a transmission signal. According to the present invention, when a transmission symbol candidate vector is detected on the basis of a received signal, a threshold value and an ML metric of each transmission symbol candidate vector are calculated and the ML metric that is larger than the threshold value is updated by the threshold value. Further, a log-likelihood ratio of the transmission signal bit is calculated using the updated ML metric and the threshold value, and a transmission signal is detected using the log-likelihood ratio. | 05-28-2009 |
Patent application number | Description | Published |
20090155617 | IRON-GOLD BARCODE NANOWIRE AND MANUFACTURING METHOD THEREOF - Disclosed are an Fe—Au barcode type nanowire and a method of manufacturing the same. The nanowire has a magnetic-optical multifunction and is suitable for adjusting magnetic intensity thereof. The Fe—Au nanowire has a multilayered structure, in which an iron layer and a gold layer are alternately and repeatedly formed, and is formed in a single plating bath through a pulse electro-deposition. | 06-18-2009 |
20120219504 | COMPLEX OF A PROTEIN COMPRISING ZINC OXIDE-BINDING PEPTIDES AND ZINC OXIDE NANOPARTICLES, AND USE THEREOF - The present invention relates to a complex of a protein comprising zinc oxide-binding peptides and zinc oxide nanoparticles, to the use thereof as a drug delivery carrier for manufacturing medicines, and to a vaccine composition and a contrast agent comprising the composite. The protein comprising zinc oxide-binding peptides significantly improves the in vivo availability of zinc oxide-binding peptides, and therefore the complex of the present invention can be used not only as a drug delivery carrier for in vivo drug delivery or intracellular drug delivery, but also for in vivo imaging or cell imaging. The complex can be used for producing separating agents for effectively separating biological materials, therapeutic agents for hyperthermia, etc., contrast agents for MRI, and beads applicable to biosensors. | 08-30-2012 |
20130309702 | MAGNETIC NANOPARTICLE, HAVING A CURIE TEMPERATURE WHICH IS WHITHIN BIOCOMPATIBLE TEMPERATURE RANGE, AND METHOD FOR PREPARING SAME - The present invention relates to a magnetic nanoparticle having a Curie temperature which is within a biocompatible temperature range, a method for preparing same, and a nanocomposite and a target substance detection composition comprising the magnetic nanoparticle. As the magnetic nanoparticle of the present invention has a Curie temperature within the temperature range of 0 degrees centigrade to 41 degrees centigrade, the ferromagnetic and paramagnetic properties of the magnetic nanoparticle may be controlled within a biocompatible temperature range at a temperature at which a biological control agent is not destroyed, and the temperature of the magnetic nanoparticle is adjusted to control the magnetic properties thereof such that the properties of the magnetic nanoparticle may be used only when ferromagnetic properties are required, such as in the case of signal amplification in detecting, separating, and delivering biological control agents. Accordingly, the magnetic nanoparticle of the present invention can minimize adverse effects of ferromagnetic properties thereof, and can be used in the effective detection and separation of biological control agents. | 11-21-2013 |
Patent application number | Description | Published |
20080223067 | Fuel cell system and air conditioner using the same - The air conditioner has a variable load to undergo a rapid change in instantaneous power consumption. The fuel cell system supplies electricity generated by reacting fuel with oxygen to the air conditioner. The fuel cell system stores the generated electricity if the instantaneous power consumption of the air conditioner is lowered and supplies the stored electricity together with the generated electricity to the air conditioner if the instantaneous power consumption is increased. | 09-18-2008 |
20080224538 | Grid-connected fuel cell system and load using the same - The system includes a fuel cell to generate DC electricity by reacting oxygen with fuel, an inverter to convert the DC electricity generated by the fuel cell to AC electricity, a DC output terminal to output the DC electricity, and an AC output terminal to output the AC electricity, the AC output terminal being connected to an electricity system. | 09-18-2008 |
20100139737 | Photovoltaic power generation system - A photovoltaic power generation system including a solar cell module having a plurality of layers and a sun tracking device to change an incident angle of solar energy upon the solar cell module. The sun tracking device is mounted at one of the layers such that the sun tracking device is combined with the solar cell module into a module. | 06-10-2010 |
20100154446 | Refrigerator and controlling method thereof - Disclosed herein are a refrigerator capable of preventing frost from forming on an evaporator by mounting a dehumidifying unit and a recycling unit on both sides of the evaporator, respectively, and a controlling method thereof. Cold air in a storage chamber is dehumidified as the air passes through the dehumidifying unit and is sent to the evaporator. The cold air thermally exchanged in the evaporator is humidified as the air passes through the recycling unit and is sent to the storage chamber. | 06-24-2010 |
20100154864 | Photovoltaic-thermal hybrid apparatus and assembly method thereof - Disclosed herein is a photovoltaic-thermal hybrid apparatus. The photovoltaic-thermal hybrid apparatus includes a plurality of photovoltaic-thermal modules. Each photovoltaic-thermal module includes at least one condenser, a solar cell disposed at at least one side of the condenser, a frame to surround the condenser and the solar cell, and a channel disposed in the frame to cool the solar cell. The photovoltaic-thermal modules are arranged adjacent to one another, and the channel of each photovoltaic-thermal module is connected to the channel of at least one neighboring photovoltaic-thermal module. | 06-24-2010 |
20100154865 | Photovoltaic-thermal hybrid apparatus - Disclosed herein is a photovoltaic-thermal hybrid apparatus. The photovoltaic-thermal hybrid apparatus includes at least one condenser to change a direction of some incident solar energy therein in a radial direction and emit some incident solar energy outside, a solar cell disposed at least one side of the condenser, and a frame to surround the condenser, the frame having a cooling channel to cool the solar cell disposed at at least one side therein. | 06-24-2010 |
20100154999 | Blind with solar batteries and control method thereof - A solar battery is partially attached to each blade of a blind. The position of each blade is adjusted based on position information such that each blade tracks sunlight. Electric energy obtained by the generation of electricity using an indoor illumination source is used to charge a battery. In addition to the generation of electricity, some of the blades are folded to let in light. | 06-24-2010 |
20110214437 | Heat pump system and control method thereof - A heat pump system which executes cooling and heating operations of an A2A indoor unit and cooling and heating operations and a hot water operation of an A2W indoor unit in a time division multiplexing (TDM) method, and a control method thereof. Further, the heat pump system solves shortage of a refrigerant during a heating operation of the A2A indoor unit or the A2W indoor unit when the TDM method is used. Therefore, the heat pump system includes a control unit to alternately operate the A2A indoor unit or the A2W indoor unit, upon judging that a simultaneous operating condition of the A2A indoor unit or the A2W indoor unit is satisfied. The heat pump system further includes a refrigerant distribution unit to circulate a refrigerant selectively to the A2A indoor unit or the A2W indoor unit. | 09-08-2011 |
Patent application number | Description | Published |
20120146944 | INPUT APPARATUS AND METHOD FOR DETECTING THE CONTACT POSITION OF INPUT APPARATUS - Provided are an input device and a touch position detecting method thereof. The input device includes a touch panel having a plurality of first touch patterns, each of which is disposed in a first direction and outputs a first touch signal at a touch position of the first direction, and a plurality of second touch patterns, each of which is disposed in a second direction perpendicular to the first direction and outputs a second touch signal at a touch position of the second direction, and a touch sensor, where the touch sensor calculates a coordinates of touch position based on the first and second touch signals and storing the coordinates of touch position according to time, wherein the touch sensor performs a first sensing operation of detecting a coordinates of real touch position using the coordinates of touch position previously stored when the number of the touch position is at least two and a time difference between the at least two touch positions is greater than a reference value and performs a second sensing operation of detecting a coordinates of real touch position using an impedance of the touch pattern which vary depending on the touch position when a number of the touch position is at least two and the elapsed time between touching of the at least two touch positions is smaller than or equal to the reference value. | 06-14-2012 |
20120194476 | TOUCH PANEL CAPABLE OF MULTI-TOUCH SENSING, AND MULTI-TOUCH SENSING METHOD FOR THE TOUCH PANEL - Provided are a touch panel capable of detecting a multi-touch and a multi-touch detecting method thereof. Since the touch panel and the multi-touch detecting method thereof can measure and store each resistance of a plurality of first and second touch pads varied depending on the touch position of a contact object and capacitance of the contact object using a variation in detection time to determine an actual touch position of the contact object, it is possible to determine the actual touch position even when a ghost pattern occurs. | 08-02-2012 |
20120200530 | INPUT DEVICE, AND METHOD FOR DETECTING THE CONTACT POSITION OF THE DEVICE - Provided are an input device and a touch position detecting method thereof The input device includes a touch panel configured to generate a plurality of different measurement values depending on touch positions and output the plurality of measurement values, a clustering part configured to receive the measurement values, and output clustered measurement values including at least one cluster from the plurality of measurement values using a threshold value, and a center point calculating part configured to receive the clustered measurement values, and calculate coordinates of each cluster using a weighted average to output the coordinates. | 08-09-2012 |
20130207934 | INPUT DEVICE AND TOUCH POSITION DETECTING METHOD THEREOF - Provided are an input device and a touch position detecting method thereof. The input device includes a touch panel part configured to output a measurement value according to a touch position of a touch object; and a touch position detecting part configured to generate a raw frame based on the measurement value and generate at least one cluster with reference to a cell having a maximum value in the raw frame, wherein, when there is an overlapped cell simultaneously included in a plurality of clusters, the touch position detecting part performs a clustering operation of dividing a value of the overlapped cell into values of the plurality of clusters according to values of cells adjacent to the overlapped cell and generating the at least one cluster, and calculates coordinates of the touch position with respect to each of the at least one cluster. | 08-15-2013 |
Patent application number | Description | Published |
20080238748 | CYCLIC DIGITAL TO ANALOG CONVERTER IN PIPELINE STRUCTURE - A cyclic digital to analog converter (CDAC) in a pipeline structure includes a first CDAC block and a second CDAC block. The first CDAC block receives a first digital signal and converts the first digital signal to a first analog value. The first CDAC block includes a charging capacitor for charging according to the first digital signal and a first storing capacitor for storing the first analog value. The second CDAC block receives a second digital signal and converts the second digital signal to a second analog value. The second CDAC block includes the charging capacitor for charging according to the second digital signal and a second storing capacitor for storing the second analog value. The first CDAC block and the second CDAC block share the charging capacitor. | 10-02-2008 |
20090237386 | Display driver integrated circuit using ping-pong type sample and hold circuit - A display driver integrated circuit using a ping-pong type sample and hold circuit is provided. The display driver integrated circuit includes a data counter, a comparison unit, a gray voltage generation unit, and a sample and hold circuit. The data counter outputs first through n-th gamma data in response to a clock signal. The comparison unit compares input image data with each of the first through n-th gamma data so as to output a comparison signal. The gray voltage generation unit generates first through n-th gray voltages in response to the first through n-th gamma data. The sample and hold circuit includes a first sub sample and hold circuit and a second sub sample and hold circuit and outputs one of the first through n-th gray voltages in response to the comparison signal. While the first sub sample and hold circuit is performing sampling, the second sub sample and hold circuit outputs one of the first through n-th gray voltages, or alternatively, while the second sub sample and hold circuit is performing sampling, the first sub sample and hold circuit outputs one of the first through n-th gray voltages. | 09-24-2009 |
20110157079 | CAPACITIVE SENSING DEVICE COMPRISING CROSS-SHAPED SENSING ELEMENTS - A capacitive sensing device comprises first electrodes in which a plurality of first sensing elements are arranged in rows and columns, and second electrodes in which a plurality of second sensing elements are arranged in rows and columns. Each of the first sensing elements has an iron cross shape, and each of the second sensing elements has a double-cross shape in which a first cross and a second cross overlap each at a shared center point and the second cross is rotated with respect to the first cross. Capacitances are formed between the first sensing elements and the second sensing elements. | 06-30-2011 |