KOREA UNIVERSITY INDUSTRIAL & ACADEMIC COLLABORATION FOUNDATION Patent applications |
Patent application number | Title | Published |
20150327177 | METHOD AND APPARATUS OF SENSOR NETWORK SUPPORTING BIDIRECTIONAL EVENT DETECTION - A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section. The bidirectional event transmission sensor network has a structure of a super frame that includes at least one standby slot (SS) including the uplink section and the downlink section. | 11-12-2015 |
20140191185 | APPARATUS AND METHOD FOR FABRICATING NANO RESONATOR USING LASER INTERFERENCE LITHOGRAPHY - A method of fabricating a nano resonator, includes forming a line pattern in a first substrate, and transferring the line pattern to a second substrate including a gate electrode. The method further includes forming a source electrode and a drain electrode on the transferred line pattern. | 07-10-2014 |
20140110763 | NANO RESONANCE APPARATUS AND METHOD - A nano resonance apparatus includes a gate electrode configured to generate a magnetic field, and a nanowire connecting a source electrode to a drain electrode and configured to vibrate in the presence of the magnetic field. The nanowire includes a protruding portion extending in a direction of the gate electrode. | 04-24-2014 |
20130295815 | ELECTRON EMISSION SOURCE, ELECTRIC DEVICE USING THE SAME, AND METHOD OF MANUFACTURING THE ELECTRON EMISSION SOURCE - Provided are an electron emission source, a display apparatus using the same, an electronic device, and a method of manufacturing the display apparatus. The electron emission source includes a substrate, a cathode separately manufactured from the substrate, and a needle-shaped electron emission material layer, e.g., carbon nanotube (CNT) layer, fixed to the cathode by an adhesive layer. The CNT layer is formed by a suspension filtering method, and electron emission density is increased by a subsequent taping process on the electron emission material layer. | 11-07-2013 |
20130135038 | SEMICONDUCTOR APPARATUS - A semiconductor apparatus includes a power supply changing unit. The power supply changing unit is configured to receive an enable signal and power supply voltage, generate first voltage or second voltage according to the enable signal, change a voltage level of the second voltage according to a level signal, and supply the first voltage or the second voltage as a driving voltage of an internal circuit, wherein the internal circuit receives a first input signal to output a second input signal. | 05-30-2013 |
20130070459 | OPTICAL DEVICES AND METHODS OF CONTROLLING PROPAGATION DIRECTIONS OF LIGHT FROM THE OPTICAL DEVICES - An optical device may include a substrate, a metal layer on the substrate, at least one first nano-structure in the layer, and at least one second nano-structure in the layer. The at least one first nano-structure may include a light source. The at least one first and second nano-structures may be spaced apart. A method of controlling a propagation direction of light output from an optical device that includes a metal layer on a substrate may include disposing first and second nano-structures in the layer; disposing at least one light source in the first nano-structure; and controlling the propagation direction of the light output from the at least one light source by changing at least one of a shape of the first nano-structure, a shape of the second nano-structure, a size of the first nano-structure, a size of the second nano-structure, and an interval between the first and second nano-structures. | 03-21-2013 |
20120289150 | DATA TRANSMISSION SYSTEM FOR FORWARDING DATA USING A PLURALITY OF ANTENNAS - A data transmission system transmitting data using a relay is provided. The relay selects a transmission terminal from a plurality of terminals connected to a base station. During a first time slot, the base station transmits base station data to the relay and the transmission terminal transmits terminal data to the relay. The relay transmits the terminal data to the base station and transmits the base station data to the transmission terminal during a second time slot. | 11-15-2012 |
20120201314 | APPARATUS AND METHOD FOR REDUCING PEAK TO AVERAGE POWER RATIO THROUGH RECOMBINATION OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYMBOL - There are provided an apparatus and a method for reducing a peak to average power ratio (PAPR) through the recombination of an orthogonal frequency division multiplexing (OFDM) symbol. The apparatus includes an orthogonal frequency division multiplexing (OFDM) symbol transforming unit sequentially transforming an OFDM symbol in a time domain obtained through an inverse fast Fourier transform (IFFT) to generate a plurality of OFDM symbols; a peak power measuring unit measuring peak powers of each of the OFDM symbol and the plurality of OFDM symbols generated therefrom; and an OFDM symbol selecting unit selecting an OFDM symbol having a minimum value among the measured peak powers as a candidate OFDM symbol to be transmitted and transmitting the selected candidate OFDM symbol, wherein the OFDM symbol transforming unit generates the plurality of OFDM symbols by (a) performing a process of rotating the OFDM symbol by a predetermined angle in a complex plane and performing cyclical shifting with respect to the rotated OFDM symbol and (b) repetitively performing process (a) with respect to the cyclically shifted OFDM symbol. Therefore, diversity is secured, whereby the PAPR may be reduced. | 08-09-2012 |
20120189220 | APPARATUS AND METHOD FOR DATA PROCESSING - A data processing apparatus and method. A vertex grouping unit of the data processing apparatus may group, into at least one group, a plurality of vertices included in a three-dimensional (3D) object desired to be compressed. A prediction mode determination unit may determine a prediction mode for compressing a vertex position with respect to each of the at least one group. A coder may code a prediction error vector and an identification (ID) index of the prediction mode determined with respect to each of the at least one group. | 07-26-2012 |
20120126327 | RESONATOR HAVING TERMINALS AND A METHOD FOR MANUFACTURING THE RESONATOR - A resonator and a method for manufacturing a resonator are provided. The method may include doping a wafer, and forming on the wafer a substrate, a drain electrode, a source electrode, a gate electrode, and at least one nanowire. | 05-24-2012 |
20120078624 | METHOD FOR DETECTING VOICE SECTION FROM TIME-SPACE BY USING AUDIO AND VIDEO INFORMATION AND APPARATUS THEREOF - The present invention relates to a method for detecting a voice section in time-space by using audio and video information. According to an embodiment of the present invention, a method for detecting a voice section from time-space by using audio and video information comprises the steps of: detecting a voice section in an audio signal which is inputted into a microphone array; verifying a speaker from the detected voice section; sensing the face of the speaker by using a video signal which is inputted into a camera if the speaker is successfully verified, and then estimating the direction of the face of the speaker; and determining the detected voice section as the voice section of the speaker if the estimated face direction corresponds to a reference direction which is previously stored. | 03-29-2012 |
20120076074 | APPARATUS AND METHOD FOR ESTABLISHING CONTENTION WINDOW IN WIMEDIA WIRELESS NETWORK - There are provided an apparatus and a method for establishing a contention window in a WiMedia wireless network. The contention window establishing apparatus includes: a parsing unit extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each device; a calculation unit calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices; and a contention window establishing unit establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, to reduce contentions among the devices and decrease data transmission latency time, thereby maximizing efficiency in data transmission latency time. | 03-29-2012 |
20120065634 | METHOD OF TREATING AN INTER-VERTEBRAL DISC - The present invention relates to treating an inter-vertebral disc, in particular, to a method of treating an inter-vertebral disc by effectively ablating a tissue within a disc, in which herniation of nucleus pulposus occurs. | 03-15-2012 |
20120013608 | APPARATUS AND METHOD OF SCALABLE ENCODING OF 3D MESH, AND APPARATUS AND METHOD OF SCALABLE DECODING OF 3D MESH - A scalable three-dimensional (3D) mesh encoding method includes dividing the 3D mesh into layers of complexity into a plurality of graduated levels and generating vertex position information and connectivity information of each of the plurality of levels. The vertex position information about the 3D mesh is encoded based on a weighting in each bit plane and vertex position information having a higher weighting in each bit plane is first encoded. | 01-19-2012 |
20110223152 | USE OF INHIBITORS OF LEUKOTRIENE B4 RECEPTOR BLT2 FOR TREATING HUMAN CANCERS - The present invention relates to a new use of inhibitors of leukotriene B4 receptor BLT2 for treating human cancers. More particularly, the present invention relates to a pharmaceutical composition for treating human cancers comprising BLT2 inhibitors and a method for treating human cancers using BLT2 inhibitors. | 09-15-2011 |
20110153363 | METHOD AND SYSTEM FOR MANAGING PERSONAL HEALTHCARE - A method and system for managing personal health are provided. The system for managing personal healthcare includes: one or more agent devices measuring a plurality of types of physical information of a user; and a manager device receiving the plurality of types of physical information from the agent device, analyzing the correlations between the plurality of types of physical information, generating health management information indicating the correlations between the plurality of types of physical information, and providing the generated health management information to the user. | 06-23-2011 |
20110127567 | SUPPORTING SUBSTRATE FOR PREPARING SEMICONDUCTOR LIGHT-EMITTING DEVICE AND SEMICONDUCTOR LIGHT-EMITTING DEVICE USING SUPPORTING SUBSTRATES - The present invention is related to a supporting substrate for preparing a semiconductor light-emitting device employing a multi-layered light-emitting structure thin-film and a method for preparing a semiconductor light-emitting device employing the supporting substrate for preparing a semiconductor light-emitting device. The supporting substrate for preparing a semiconductor light-emitting device is formed by successively laminating a sacrificial layer, a heat-sink layer and a bonding layer on a selected supporting substrate. A method for preparing a semiconductor light-emitting device employing the supporting substrate for preparing a semiconductor light-emitting device includes: preparing a first wafer in which a semiconductor multi-layered light-emitting structure is laminated/grown on an upper part of an initial substrate; preparing a second wafer which is a supporting substrate for preparing a semiconductor light-emitting device; bonding the second wafer on an upper part of the first wafer; separating the initial substrate of the first wafer from a result of the bonding; performing passivation after forming a first ohmic contact electrode on an upper part of the first wafer from which the initial substrate is separated; and preparing a single-chip by severing a result of the passivation. | 06-02-2011 |
20110102219 | SUCCESSIVE APPROXIMATION ANALOG/DIGITAL CONVERTER AND TIME-INTERLEAVED SUCCESSIVE APPROXIMATION ANALOG/DIGITAL CONVERTER - A successive approximation analog/digital converter includes a sample & hold part sampling and holding an intensity of an analog input signal using a single clock cycle of a clock signal; a first comparator comparing the intensity of the analog input signal with comparison voltages determined according to estimated digital values per clock cycle following an operating clock cycle of the sample & hold part; a second comparator comparing the intensity of the analog input signal with a value equal to ½ of a preset reference voltage in the latter half of the operating clock cycle of the sample & hold part; a successive approximation register determining a value of an MSB of a digital value to be converted according to the comparison result of the second comparator and values of bits successive to the MSB according to the comparison result of the first comparator, and generating the estimated digital values by applying estimated values to undetermined bits; and a digital/analog converter generating the comparison voltages using the estimated digital values and the reference voltage. | 05-05-2011 |
20110091118 | APPARATUS AND METHOD FOR CODING A THREE DIMENSIONAL MESH - Disclosed is a three-dimensional (3D) mesh compression apparatus and method. The 3D mesh compression apparatus may generate a base mesh through a mesh simplification, may separately compress the base mesh and peaks eliminated by the simplification, may construct a covariance matrix based on a topological distance between the eliminated peaks, and may compress 3D mesh data based on the covariance matrix. | 04-21-2011 |
20110059765 | METHOD AND APPARATUS OF SELECTING TRANSMISSION/RECEPTION MODE OF PLURAL TRANSMISSION/RECEPTION PAIRS - An achievable sum data rate with respect to each of available candidate transmission/reception modes may be calculated to select a transmission/reception mode of transmission/reception pairs repeatedly using radio resources. A transmission/reception mode to be applied may be selected from the candidate transmission/reception modes based on the calculated sum data rate. Information associated with the selected transmission/reception mode may be shared by the transmission/reception pairs. | 03-10-2011 |
20110012654 | LOCKING STATE DETECTOR AND DLL CIRCUIT HAVING THE SAME - A locking state detector includes a phase comparing unit configured to compare a reference clock signal and a feedback clock signal to generate a first phase difference distinction signal to distinguish a first phase difference range, and a second phase difference distinction signal to distinguish a second phase difference range wider than the first phase difference range, and a locking state setting unit configured to generate a locking state signal in response to the first phase difference distinction signal and the second phase difference distinction signal. | 01-20-2011 |
20100324574 | BEAD FOR STITCHING, VACUUM CAP FOR SUCTION INTERNAL ORGAN AND APPARATUS FOR STITCHING INTERNAL ORGAN USING THE SAME - A bead for stitching, a vacuum cap for suction-holding an internal organ, and an apparatus for stitching an internal organ using the vacuum cap are disclosed. The bead includes a through hole which is formed vertically through the bead so that a stitching fiber passes through the bead. At least one of both ends of the bead is inclined relative to a transverse direction of the bead. The bead is shaped to pass through a hole formed in a stitching needle. That apparatus includes an endoscope tube having a stitching needle which is movable in a longitudinal direction thereof and a suction tube for drawing air, and a vacuum cap having at an end thereof a fastening hole to which the endoscope tube is fastened. A suction hole is formed in the vacuum cap in a direction crossing the fastening hole. | 12-23-2010 |
20100276667 | NONVOLATILE MEMORY ELECTRONIC DEVICE INCLUDING NANOWIRE CHANNEL AND NANOPARTICLE-FLOATING GATE NODES AND A METHOD FOR FABRICATING THE SAME - A nonvolatile memory electronic device including nanowire channel and nanoparticle-floating gate nodes, in which the nonvolatile memory electronic device, which comprises a semiconductor nanowire used as a charge transport channel and nanoparticles used as a charge trapping layer, is configured by allowing the nanoparticles to be adsorbed on a tunneling layer deposited on a surface of the semiconductor nanowire, whereby charge carriers moving through the nanowire are tunneled to the nanoparticles by a voltage applied to a gate, and then, the charge carriers are tunneled from the nanoparticles to the nanowire by the change of the voltage that has been applied to the gate, whereby the nonvolatile memory electronic device can be operated at a low voltage and increase the operation speed thereof. | 11-04-2010 |
20100244113 | MOS VARACTOR AND FABRICATING METHOD OF THE SAME - The present invention provides a MOS varactor for use in circuits and elements of a millimeter-wave frequency band, which is capable of reducing series resistance and enhancing a Q-factor by using a plurality of island-like gates seated in a well region of a substrate and gate contacts directly over the gates, and a method of fabricating the MOS varactor. The MOS varactor include: island-like gate insulating layers which are arranged at equal intervals in the form of a (n×m) matrix (where, n and m are integers equal to or larger than one), and a gate electrode of a first height (t1) placed on the gate insulating layers in a well region of a substrate; a gate contact which contacts the gate electrode; a first metal wire of a second height (t2) (where, t109-30-2010 | |
20100181896 | SURFACE FIELD ELECTRON EMITTERS USING CARBON NANOTUBE YARN AND METHOD OF FABRICATING CARBON NANOTUBE YARN THEREOF - Surface field electron emitters using a carbon nanotube yarn and a method of fabricating the same are disclosed. To fabricate the carbon nanotube yarn for use in fabrication of simple and efficient carbon nanotube field electron emitters, the method performs densification of the carbon nanotube yarn during rotation of a plying unit and heat treatment of the carbon nanotube yarn that has passed through the plying unit without using organic or inorganic binders or polymer pastes. The method fabricates the carbon nanotube yarn with excellent homogeneity and reproducibility through a simple process. The carbon nanotube yarn-based surface field electron emitters can be applied to various light emitting devices. | 07-22-2010 |
20100181894 | FIELD ELECTRON EMITTER INCLUDING NUCLEIC ACID-COATED CARBON NANOTUBE AND METHOD OF MANUFACTURING THE SAME - A field electron emitter includes a thin film layer including a carbon nanotube (“CNT”) disposed on a substrate, wherein the thin film layer includes nucleic acid. | 07-22-2010 |
20100131933 | System and Method for translating high programming level languages code into Hardware Description Language code - The present invention is directed to a method and system for translating a high programming level language code such as C, C++, Fortran, Java or the like into a HDL code such as Verilog or VHDL. The system includes: a C-to-C source translator which reads user API from a translation-targeted high level language code marked with the user API, separates the translation-targeted high level language code into a hardware code part and a software code part, and stores the hardware code part and the software code part in separate files; a main compiler which compiles the stored software code part; a translator which translates the stored hardware code part into a HDL code including one or more block modules and one top module; a main core which executes the compiled software code part; and a dedicated hardware which executes the HDL code. | 05-27-2010 |
20100112937 | DATA TRANSMISSION SYSTEM FOR FORWARDING DATA USING A PLURALITY OF ANTENNAS - A data transmission system transmitting data using a relay is provided. The relay selects a transmission terminal from a plurality of terminals connected to a base station. During a first time slot, the base station transmits base station data to the relay and the transmission terminal transmits terminal data to the relay. The relay transmits the terminal data to the base station and transmits the base station data to the transmission terminal during a second time slot. | 05-06-2010 |
20100075617 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL IN A COMMUNICATION SYSTEM - A method and an apparatus for transmitting and receiving a signal in a communication system are provided. The method includes transmitting a signal to a receiver through one of the antennas, receiving an antenna switching indicator indicating to switch the transmitting antenna from the receiver, and switching the transmitting antenna according to the antenna switching indicator, and transmitting a signal to the receiver through a switched antenna. | 03-25-2010 |
20100065865 | METHOD OF FORMING NITRIDE SEMICONDUCTOR AND ELECTRONIC DEVICE COMPRISING THE SAME - A method of forming a nitride semiconductor through ion implantation and an electronic device including the same are disclosed. In the method, an ion implantation region composed of a line/space pattern is formed on a substrate at an ion implantation dose of more than 1E17 ions/cm | 03-18-2010 |
20100056366 | NANOPARTICLES INCLUDING METAL OXIDE HAVING CATALYTIC ACTIVITY - Core-shell nanoparticles having a core material and a mesoporous silica shell, and a method for manufacturing the core-shell nanoparticles are provided. | 03-04-2010 |
20100055170 | METAL CORE NANOCAPSULES - Techniques for preparing nanocapsules are provided. | 03-04-2010 |
20100055002 | FIBER INCLUDING SILICA AND METAL OXIDE - Techniques for coating a fiber with metal oxide include forming silica in the fiber to fix the metal oxide to the fiber. The coated fiber can be used to facilitate photocatalysis. | 03-04-2010 |
20100052702 | APPARATUS FOR MEASURING TOTAL ACID NUMBER OF OIL AND ESTIMATING LIFETIME OF OIL, AND METHOD FOR MEASURING TOTAL ACID NUMBER OF OIL AND OIL SENSOR USING THE SAME - Disclosed herein are an apparatus for measuring the total acid number of oil, an apparatus for measuring the lifetime of oil through the measurement of the total acid number of oil, a method for measuring the total acid number of oil, and a method of making measurements using an oil sensor. According to the disclosed invention, measurement accuracy can be increased through the use of a high-sensitivity conductance measuring sensor, the inventive apparatus can be applied to both lubricant oil and insulating oil, the size of the total acid number-measuring apparatus can be reduced. | 03-04-2010 |
20100051536 | FILTER INCLUDING MULTIPLE SPHERES - This disclosure relates to a filter including a plurality of spheres close-packed to form a thin layer. | 03-04-2010 |
20100050792 | PREPARING SENSORS WITH NANO STRUCTURE - A sensor producing apparatus comprised of an extractor for extracting a nano fiber from a solution and a driving device to relatively move the substrate and the extractor, a method for forming a sensor, and a sensor with a nano structure are provided. | 03-04-2010 |
20100040300 | IMAGE PROCESSING METHOD AND APPARATUS FOR CORRECTING DISTORTION CAUSED BY AIR PARTICLES AS IN FOG - Provided are a method and apparatus for processing an image. The method includes receiving a first luminance image of an image including airlight, which is a type of light that occurs in a foggy environment, and generating an airtight map based on a ratio between an average luminance of the first luminance image, and a standard deviation; and removing the airtight by subtracting the airtight map from the first luminance image and outputting a second luminance image. According to the present invention, airlight components may be effectively removed. | 02-18-2010 |
20100034835 | USE OF INHIBITORS OF LEUKOTRIENE B4 RECEPTOR BLT2 FOR TREATING ASTHMA - The present invention relates to a new use of inhibitors of leukotriene B4 receptor BLT2 for treating asthma. More particularly, the present invention relates to a pharmaceutical composition for treating asthma comprising BLT2 inhibitors and a method for treating asthma using BLT2 inhibitors. | 02-11-2010 |
20100013530 | DLL-Based Multiplase Clock Generator - The present invention relates to a delay-locked loop-based multiphase clock generator that generates a plurality of multiphase clocks from an input clock signal using a voltage controlled delay line including a plurality of dummy cells. The delay-locked loop-based multiphase clock generator includes an anti-harmonic lock circuit that receives an input clock and a reference clock of multiple clocks, determines whether a pulse signal derived from the input clock is within a normal locking range of the reference clock, and outputs a compulsory control signal to compulsorily control an output signal of a phase detector if it is determined that the pulse signal is not within the normal locking range. | 01-21-2010 |
20100004665 | BEAD FOR STITCHING, VACUUM CAP FOR SUCTION INTERNAL ORGAN AND APPARATUS FOR STITCHING INTERNAL ORGAN USING THE SAME - A bead for stitching, a vacuum cap for suction-holding an internal organ, and an apparatus for stitching an internal organ using the vacuum cap are disclosed. The bead includes a through hole which is formed vertically through the bead so that a stitching fiber passes through the bead. At least one of both ends of the bead is inclined relative to a transverse direction of the bead. The bead is shaped to pass through a hole formed in a stitching needle. That apparatus includes an endoscope tube having a stitching needle which is movable in a longitudinal direction thereof and a suction tube for drawing air, and a vacuum cap having at an end thereof a fastening hole to which the endoscope tube is fastened. A suction hole is formed in the vacuum cap in a direction crossing the fastening hole. | 01-07-2010 |
20100002213 | PHOTOLITHOGRAPHY SYSTEM USING AN OPTICAL MICROSCOPE - A photolithography system using an optical microscope is provided that can form various types of selective patterns at a low cost in small-scale research using unit-size silicon substrates which is not targeted for mass production, without requiring an expensive photomask. | 01-07-2010 |
20090304123 | APPARATUS AND METHOD FOR DETECTING SIGNAL IN MIMO SYSTEM - An apparatus and method for detecting a signal in a Multiple-Input Multiple-Output (MIMO) system are provided. The method includes filtering each stream of a received signal, acquiring a new search space by acquiring a set of candidates having reliability greater than a threshold with respect to each filtered stream, and detecting a signal for each stream of the new search space. | 12-10-2009 |
20090285324 | APPARATUS AND METHOD FOR SPATIAL MULTIPLEXING IN MULTI INPUT MULTI OUTPUT SYSTEM - Methods and apparatus for spatial multiplexing in a closed-loop Multi Input Multi Output (MIMO) system are provided. In a method of operating a receiver in an MIMO system, a signal transmitted by a transmitter is received. Blockwise-Orthogonalized Spatial Multiplexing (B-OSM) is performed on the received signal. Feedback information determined by performing the B-OSM on the received signal is fed back to the transmitter. | 11-19-2009 |
20090268963 | Pre-processing method and apparatus for wide dynamic range image processing - Provided are method and apparatus of pre-processing in WDR (wide dynamic range) image processing, the method of pre-processing of WDR image processing including: (a) receiving luminance and chrominance signals having different exposure times, and analyzing the correlation between a luminance signal having a first exposure time and a luminance signal having a second exposure time that is longer than the first exposure time; (b) based on the result of the analysis, dividing each of the luminance signal having the first exposure time and the luminance signal having the second exposure signal, into at least one of a bright region, a transition region, and a dark region; and (c) normalizing the regions of the luminance signal having the first exposure time to respectively correspond to the regions of the luminance signal having the second exposure times. | 10-29-2009 |
20090267706 | RESONATOR AND FABRICATION METHOD THEREOF - A resonator fabrication method is provided. A method includes providing a plurality of electrode patterns disposed apart from each other on a substrate using a nano-imprint technique; and forming an extended electrode pattern connected to a plurality of electrode patterns, and forming a nano structure laid across an extended electrode patterns. Therefore, a nano-electromechanical system (NEMS) resonator is easily fabricated at a nanometer level. | 10-29-2009 |
20090262175 | HEAT GENERATION SHEET AND METHOD OF FABRICATING THE SAME - Provided are a heat generation sheet and a method of fabricating the same. The heat generation sheet includes: a base comprising first and second sides; a heat generation layer which is formed in at least one region of the first side of the base and in which a plurality of conductive nanoparticles are physically necked; a protective layer protecting the heat generation layer; and an electric feeding part supplying power to the heat generation layer. The heat generation layer is formed by coating and heat treating a nanoparticle dispersion solution. | 10-22-2009 |
20090219892 | METHOD FOR PROCESSING HANDOFF - Provided is a handoff processing method including measuring a moving speed of a mobile terminal; measuring a size of a data packet generated in an application layer; measuring quality of a data transmission channel of the mobile terminal; calculating a maximum handoff delay time based on a relation between the moving speed and the data packet's size; estimating a handoff occurrence time point, based on a relation between a variation of the quality of the data transmission channel and the quality of the data transmission channel; and calculating a packet size and a moving speed of the mobile terminal that can minimize a delay due to a handoff occurrence by taking account of a handoff delay time according to the size of the data packet generated in the application layer and a moving speed of the mobile terminal into consideration, and providing the calculated packet size and moving speed. | 09-03-2009 |
20090218930 | ELECTRON EMISSION SOURCE, ELECTRIC DEVICE USING THE SAME, AND METHOD OF MANUFACTURING THE ELECTRON EMISSION SOURCE - Provided are an electron emission source, a display apparatus using the same, an electronic device, and a method of manufacturing the display apparatus. The electron emission source includes a substrate, a cathode separately manufactured from the substrate, and a needle-shaped electron emission material layer, e.g., carbon nanotube (CNT) layer, fixed to the cathode by an adhesive layer. The CNT layer is formed by a suspension filtering method, and electron emission density is increased by a subsequent taping process on the electron emission material layer. | 09-03-2009 |
20090205978 | MEASURING DEVICE FOR PERMEATION RATE OF WATER AND OXYGEN OF PROTECTIVE LAYER IN ORGANIC ELECTRONIC DEVICE AND MEASURING METHOD USING THE DEVICE - A device and method for measuring water and oxygen permeation rates of a protective layer in an organic electronic device are provided. The device includes: a glass substrate; a pair of electrode layers facing each other and deposited on the glass substrate; a calcium layer deposited on the glass substrate; a water and oxygen permeable substrate deposited on the calcium layer; a target protective layer of an organic electronic device, which is deposited on the water and oxygen permeable substrate; and a sealing material applied along an edge of the target protective layer, wherein one ends of the pair of electrode layers are buried in the calcium layer and the other ends are electrically connected to an external resistance measuring device. | 08-20-2009 |
20090195869 | Optical microscope system for detecting nanowires using polarizer and fast fourier transform - Provided is an optical microscope system for detecting nanowires that is designed with a rotational polarizer and Fast Fourier Transform (FFT) to allow for use of an existing optical microscope in fabricating an electronic device having the nanowires. The optical microscope system includes: a light source for emitting light to provide the light to a nanowire sample; a rotational polarizer provided on a path of the light emitted from the light source for polarizing the light; an optical microscope for detecting a nanowire image using light that is polarized by the rotational polarizer and incident on the nanowire sample; a CCD camera provided in a region of the optical microscope for photographing and storing the nanowire image detected by the optical microscope; and a data processor for performing Fast Fourier Transform (FFT) on the nanowire image stored in the CCD camera. Intensity of reflected light varies, due to optical anisotropy of the nanowires, along a polarizing orientation of light incident on the nanowires. It is possible to obtain a distinct image of the nanowires having a nanometer line width by performing FFT on each pixel of reflected light images obtained at predetermined time intervals after light passing through the polarizer rotating in a predetermined period is incident on the nanowires. | 08-06-2009 |
20090167497 | TAG FOR RFID, WIRELESS TRANSMISSION SYSTEM AND METHOD FOR LARGE SCALE MULTIMEDIA CONTENTS USING THE SAME - The invention provides an RFID tag for storing large scale multimedia contents data readable only when it is authenticated, remote authentication for accessing the multimedia contents data stored in the RFID tag, and a wireless communication system and method for transmitting/receiving the multimedia contents on a radio frequency through the authentication. Specifically, the tag includes: a wireless communication unit transmitting/receiving the first and second request signals and the first and second data signals; a first memory device storing first data for the first data signal; a second memory device storing second data for the second data signal; a tag control unit which generates and transmits the first data signal based on the first data in response to the first request signal from the reader device, or generates and transmits the second data signal based on the second data in response to the second request signal from the reader device; and an authentication unit selectively prohibiting the tag control unit from accessing the second memory device depending on authentication information contained in the second request signal. | 07-02-2009 |
20090129401 | METHOD AND APPARATUS FOR STAGGERED ZONE RESOURCE ALLOCATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM - A method for staggered zone resource allocation in an orthogonal frequency division multiple access (OFDMA) system having a cluster includes: dividing a frequency resource of the OFDMA system into a plurality of time zones along a time axis; determining at least two resource allocation start zones among the plurality of time zones in at least two cells of the cluster, respectively; arranging users in each of the at least two cell according to a path loss in a descending order; and sequentially allocating the frequency resource to the arranged users from the at least two resource allocation start zones in the at least two cells, respectively. | 05-21-2009 |
20090128294 | DATA STREAMING APPARATUS FOR RADIO FREQUENCY IDENTIFICATION TAG - The invention relates to a data streaming apparatus for an RFID tag capable of streaming large scale data with low power consumption without a complicated structure. A mass storage is segmented into unit banks, and only the unit banks are selectively operated in a sequential manner. As a result, a tag capable of streaming large scale data with low power consumption can be provided. | 05-21-2009 |
20090083567 | APPARATUS AND METHOD FOR CLOCK GENERATION WITH PIECEWISE LINEAR MODULATION - An apparatus and method for generating a clock using piecewise linear modulation are provided. The apparatus includes: a modulation profile generator for outputting an M-bit digital profile obtained by quantizing a piecewise linear modulation profile consisting of two or more linear signals; a delta-sigma modulator for receiving the M-bit digital profile and outputting a K-bit profile obtained by delta-sigma modulating the M-bit digital profile, K being a smaller number than M; a phase-frequency comparator for outputting up and down pulses having the same phase difference as that between a reference clock and a feedback clock; a charge pump for outputting a predetermined current for a time corresponding to the phase difference between the up and down pulses; a loop filter for outputting a control voltage corresponding to the predetermined current; a voltage controlled oscillator (VCO) for outputting a multi-phase clock having a frequency corresponding to a level of the control voltage; and a fractional divider for receiving the multi-phase clock of the VCO, selecting a divider according to the K-bit profile, and outputting a divided clock as the feedback clock. Therefore, it is possible to minimize electromagnetic interference (EMI) using piecewise linear modulation, and to readily implement the apparatus and method on a chip due to the modulation profile consisting of two or more linear signals. In addition, the delicate fractional divider using a multi-phase clock of the VCO and a phase interpolator allows precise frequency interpolation. Furthermore, unnecessary power consumption can be reduced by preventing application of a clock to an unused block. | 03-26-2009 |
20090081282 | PHARMACEUTICAL COMPOSITION FOR TREATING CANCER - The present invention provides a small interfering RNA (siRNA) that is capable of inhibiting intracellular expression of Wnt1 through complementary binding to a Wnt1 transcript (mRNA transcript) base sequence and a pharmaceutical composition for treating cancer comprising the same. siRNA of the present invention which is complementary to a base sequence of a Wnt1 transcript (mRNA) provides apoptotic cancer cell death due to inhibition of expression of Wnt1 commonly expressed in cancer cells, by RNA-mediated interference (RNAi). Therefore, the composition of the present invention comprising the same can be used as an excellent anticancer drug. | 03-26-2009 |
20090039043 | SELF MOVABLE CRANE SYSTEM WITH A BOOM - A self movable boom system is provided. The self movable boom system include: a boom disposed on a plane perpendicular to a building clamp structure; and a moving unit apparatus including a circumferential moving unit which is disposed between the boom and the building clamp structure to move the boom on a plane perpendicular to the building clamp structure, a lifting-up unit of which one end is disposed toward the circumferential moving unit and of which other end is disposed toward the building clamp structure to move the boom along a longitudinal direction of the building clamp structure, and a boom moving unit which moves an object along the longitudinal direction of the building clamp structure and along a longitudinal direction of the boom. | 02-12-2009 |
20090028281 | SERIAL TRANSCEIVER AND COMMUNICATION METHOD USED BY THE SERIAL TRANSCEIVER - A high speed transceiver without using an external clock signal and a communication method used by the high speed transceiver which applies a clock recovery circuit including a coarse code generator, a frequency detector, and a linear phase detector to the receiver so as to solve problems such as skew between a reference clock and data that may occur during data transmission and jitter of a recovered clock while an embedded clock method of applying clock information to data is used. | 01-29-2009 |
20090028274 | PHASE-DIGITAL CONVERTER HAVING HIERARCHICAL STRUCTURE - A time to digital converter having a hierarchical structure is provided. The time to digital converter includes: a plurality of delay stages for sequentially delaying a first signal for a specific delay time; a plurality of flip-flops for comparing delay signals of the first signal delayed by the delay stages with a second signal, and generating different outputs before and after a phase difference between the delay signals of the first signal and the second signal becomes smaller than a resolution of the phase detector; a selection signal generator for generating a selection signal for selecting a signal most similar to the second signal among the delay signals of the first signal from the outputs of the flip-flops; and a Multiplexer (MUX) for receiving the delay signals of the first signal and the selection signal, and outputting the signal most similar to the second signal among the delay signals of the first signal. | 01-29-2009 |
20080305798 | HANDOVER METHOD IN A WIRELESS MOBILE COMMUNICATION SYSTEM AND A SYSTEM THEREFOR - A handover method of a mobile station in a wireless mobile communication system and a system therefore are provided. The mobile station transmits a handover indication message to a serving base station, receives a ranging response message that comprises authentication information required for the mobile station to authenticate a target base station, receives fast ranging resources and transmits a ranging response acknowledgement (ACK) message, which comprises authentication information required for the target base station to authenticate the mobile station, to the target base station after receiving the fast ranging resources. Accordingly, a handover break time is minimized. | 12-11-2008 |
20080233675 | METHOD OF FABRICATING NANO-WIRE ARRAY - Provided is a method of fabricating a nano-wire array, including the steps of: depositing a nano-wire solution, which contains nano-wires, on a substrate; forming a first etch region in a stripe shape on the substrate and then patterning the nano-wires; forming drain and source electrode lines parallel to each other with the patterned nano-wires interposed therebetween; forming a plurality of drain electrodes which have one end connected to the drain electrode line and contact at least one of the nano-wires, and forming a plurality of source electrodes, which have one end connected to the source electrode line and contact the nano-wires that contact the drain electrodes; forming a second etch region between pairs of the drain and source electrodes so as to prevent electrical contacts between the pairs of the drain and source electrodes; forming an insulating layer on the substrate; and forming a gate electrode between the drain and source electrodes contacting the nano-wires on the insulating layer. Accordingly, even in an unparallel structure of nano-wires to electrode lines, a large scale nano-wire array is practicable and applicable to an integrated circuit or display unit with nano-wire alignment difficulty, as well as to device applications using flexible substrates. | 09-25-2008 |
20080199944 | Pressure Controllable Incubation System - A pressure controllable incubation system is provided for constantly maintaining a concentration of carbon dioxide while keeping a pressure chamber, in which living organisms to be cultured are placed, at a pressure higher than atmospheric pressure. The pressure controllable incubation system comprise a bomb that stores air containing high-concentration carbon dioxide to be injected into a pressure chamber and supplies the air into the pressure chamber, and a heat controller that constantly maintains temperature in the pressure chamber. The pressure controllable incubation system constantly maintains culture conditions such as pressure, temperature, and concentration of carbon dioxide which the user wants for a long time, so that it can be effectively applied to the culture of various living organisms. | 08-21-2008 |