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| 20110044449 | PASSWORD DECIPHERING APPARATUS AND METHOD - Provided are an apparatus and a method for deciphering a password. The password deciphering apparatus includes a host control unit and at least two graphic processing units. The host control unit generates candidate passwords for detection of a password of a ciphered document file, and allocates the generated candidate passwords to at least two graphic processing units in a non-overlapping manner. The graphic processing units output password detection information when detecting the password of the document file by searching the allocated candidate passwords. Herein, upon receiving the password detection information from one of the graphic processing units, the host control unit uses the password detection information to detect the password. | 02-24-2011 |
| 20110055590 | APPARATUS AND METHOD FOR COLLECTING EVIDENCE DATA - An apparatus for collecting evidence data includes: an online data collection unit for collecting online data from a location designated by a user; a screen capture unit for capturing shots viewed on a computer screen, as they are; a time stamping unit for calculating a message digest for the collected online data to generate a time stamp including date and time when the message digest has been generated and a signature of the time stamping unit itself; and an image generation unit for generating a forensic image for the collected online data and generating a message digest for the collected online data. | 03-03-2011 |
| 20110126011 | METHOD OF USER-AUTHENTICATED QUANTUM KEY DISTRIBUTION - A method of user-authenticated quantum key distribution according to the present invention shares a position having the same basis without making public basis information using previously shared secret keys and authenticates a quantum channel by confirming whether there is the same measured outcome at that position, in order to secure unconditional security of BB84 quantum key distribution (QKD) protocols vulnerable to man-in-the-middle attack. | 05-26-2011 |
| 20110145594 | METHOD FOR PERFORMING SEARCHABLE SYMMETRIC ENCRYPTION - Disclosed is a method for searchable symmetric encryption. The method for performing searchable encryption and searching for encrypted data includes: setting all necessary variables and preparing a secret key necessary for encryption; encrypting a data using the secret key and a given data and generating an index to be used for later search, to store the encrypted data and the index; generating a trapdoor to be used to search the encrypted data by using the secret key and a keyword to be used for the searching; and searching a desired data using the generated trapdoor and the stored index. | 06-16-2011 |
| 20110145929 | APPARATUS AND METHOD FOR PRIVACY PROTECTION IN ASSOCIATION RULE MINING - There are provided an apparatus and a method for privacy protection in association rule mining among data mining technologies. An apparatus for privacy protection in association rule mining according to an embodiment of the present invention comprises: a fake transaction inserter that generates fake transactions of a predetermined number each having a predetermined length and inserts the fake transactions between a plurality of transactions comprised in an original data set to generate a first virtual data set; and a distortion transaction generator that generates a second virtual data set by converting data of the transaction of the first virtual data set with a predetermined probability. | 06-16-2011 |
| 20110153748 | REMOTE FORENSICS SYSTEM BASED ON NETWORK - A remote forensics system based on a network is provided to allow for accessing a forensics analysis center from a remote area to perform forensic analysis. The network-based remote forensic system includes: one or more remote terminals performing forensic analysis on an evidence device in a remote area, through a virtual forensic tool when the evidence device is connected thereto; and an investigation center system connected to the remote terminals via a wide area network to provide the virtual forensic tool, processing a requirement of the remote terminals, and providing requirement processing results to the remote terminals. | 06-23-2011 |
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| 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 |
| 20090141786 | APPARATUS AND METHOD OF ESTIMATING SIGNAL-TO-NOISE RATIO - The present invention relates an apparatus and method of estimating a signal-to-noise ratio (SNR) of a received signal when the received signal has a timing offset. An apparatus for estimating a signal-to-noise ratio (SNR) according to an exemplary embodiment of the present invention includes a fast Fourier transform (FFT) unit that performs a fast Fourier transform on a received signal to convert the received signal into a frequency domain signal; a preamble selector that extracts a preamble from the frequency domain signal; a correlator that correlates the preamble to a preamble reference signal generated by a receiver to calculate a correlation value; an entire power estimator that calculates entire power; a noise power estimator that applies a differential demodulation method to the correlation value to remove a timing offset and calculate noise power; and an estimating unit that uses the entire power and the noise power to estimate the signal-to-noise ratio (SNR). | 06-04-2009 |
| 20100157982 | TRANSMITTER AND METHOD FOR TRANSMITTING AND RECEIVING OF VOICE DATA FOR VOIP SERVICE - Provided are a transmitting apparatus and voice data transmitting and receiving methods for providing VoIP services. When a call is started and an analog signal including a voice signal is input, the transmitting apparatus divides the analog signal into a plurality of voice data packets for transmission. Here, the plurality of voice data packets are generated by sampling with different phases in the same frequency. In addition, the transmitting apparatus inserts a time indication bit that is changed every transmission period into each of the voice data packets and transmits the voice data packets, and distinguishes voice data corresponding to a current transmission period based on the time indication bit. | 06-24-2010 |
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| 20080279847 | Humanized Anti-Tag-72 Monoclonal Antibodies - The present invention relates to humanized antibodies specific to a tumor associated glycoprotein, TAG-72, and anticancer compositions comprising the humanized antibodies. In detail, the present invention relates to a humanized antibody which has enhanced antigen binding affinity by mutating a heavy chain of a humanized antibody PXA/HzK specific for TAG-72, an antibody which is prepared by replacing a light chain of the humanized antibody with a human light chain, and anticancer compositions including the antibodies. | 11-13-2008 |
| 20100196350 | PHARMACEUTICAL COMPOSITION FOR TREATING CHOLANGIOCARCINOMA, A METHOD FOR INHIBITING GROWTH OR INVASION OF CHOLANGIOCARCINOMA AND A METHOD FOR TREATING CHOLANGIOCARCINOMA - Disclosed herein are a pharmaceutical composition for inhibiting the growth or metastasis of cholangiocarcinoiria, comprising a L1CAM activity inhibitor or expression suppressor and a treatment method using the composition. This is based on the finding that L1CAM is overexpressed on cholangiocarcinoma and plays an important role in the growth and metastasis of cholangiocarcinoma and the mortality of cholangiocarcinoma patients increases as the expression rate of L1CAM increases. Also, antibodies inhibitory of the activity of L1CAM, or siRNAs suppressing the expression of L1CAM, are found to reduce the growth and invasion of cholangiocarcinoma cells. Mouse monoclonal antibodies, recognizing the L1CAM protein on the cholangiocarcinoma cell surface and binding specifically to cholangiocarcinoma tissues, or siRNAs, antisense oligonucleotides or shRNAs, may be useful in the treatment of cholangiocarcinoma by inhibiting the growth, invasion and migration of cholangiocarcinoma cell. | 08-05-2010 |
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| 20100289158 | ADHESIVE FILM, DICING DIE BONDING FILM AND SEMICONDUCTOR DEVICE USING THE SAME - The present invention relates to an adhesive film, a dicing die bonding film and a semiconductor device. More specifically, the adhesive film of the present invention is characterized by comprising a base film and an adhesive layer and having a yield strength of 20 to 50 gf and a slope of tensile elastic region of 30 to 80 gf/mm at a thickness of 5 to 50 μm. In the present adhesive film, the yield strength and the slope of tensile elastic region are controlled so that the incidence of burrs may be predicted and controlled depending on thickness of an adhesive layer. The dicing die bonding film, and the semiconductor device comprising the same have lower incidence of burrs and an excellent workability and reliability. | 11-18-2010 |
| 20100291739 | DICING DIE BONDING FILM AND DICING METHOD - The present invention relates to a dicing die bonding film, which is able to maintain good workability and reliability in any semiconductor packaging process, such as adhesive property, gap filling property and pick-up property, while controlling burr incidence in a dicing process and thus contamination of die, and a dicing method. Specifically, the present invention is characterized by optimizing tensile characteristics of the dicing die bonding film, or carrying out the dicing on the parts of the die bonding film in the dicing process and separating it through an expanding process. Therefore, the present invention may regulate physical properties of films so as to have the maximized adhesive property, pick-up property and gap filling property without any specific restriction, while controlling burr incidence in the dicing process and contamination of die. As a result, workability and reliability in a packaging process may be excellently maintained. | 11-18-2010 |
| 20110037180 | DICING DIE BONDING FILM HAVING EXCELLENT BURR PROPERTY AND RELIABILITY AND SEMICONDUCTOR DEVICE USING THE SAME - The present invention relates to a dicing die bonding film employed in a semiconductor packaging process, and a semiconductor device using the same. The dicing die bonding film is configured such that a ratio X/Y of adhesive power X between the wafer and the adhesive layer of the die bonding portion to tacky power Y between the die bonding portion and the tacky layer of the dicing portion is 0.15 to 1, and the adhesive layer of the die bonding portion has a storage modulus of 100 to 1000 MPa at a normal temperature. The dicing die bonding film according to the present invention reduces burr generation in dicing process, and thereby preparing a semiconductor device having excellent reliability without inferiority caused by bad connection reliability due to the burr covering a bonding pad. | 02-17-2011 |
| 20110091676 | PRESSURE-SENSITIVE ADHESIVE FILM AND BACK-GRINDING METHOD USING THE SAME - The present invention relates to a pressure-sensitive adhesive film and a semiconductor wafer backgrinding method using the same. The present invention provides a pressure-sensitive adhesive film capable of remarkably improving production efficiency in a wafer backgrinding of a semiconductor manufacturing process due to its superior cutting and adherence properties in the semiconductor manufacturing process and an excellent cushioning property. Moreover, the present invention also provides a pressure-sensitive adhesive film having superior peeling and re-peeling properties and wettability to the wafer while providing excellent water resistance, and a backgrinding method using the pressure-sensitive adhesive film. | 04-21-2011 |
| 20110111218 | EPOXY-BASED COMPOSITION, ADHESIVE FILM, DICING DIE-BONDING FILM AND SEMICONDUCTOR DEVICE - Provided are an epoxy composition, an adhesive film, a dicing die bonding film and a semiconductor device using the same. Specifically, the epoxy composition and a use thereof are provided, wherein the epoxy composition has a gel content of 5˜20%, measured under certain conditions. The epoxy composition according to the present invention, as an adhesive agent, shows excellent elastic properties, when prepared to have a low glass transition temperature, exhibiting good adhesion at high temperature and having minimal occurrence of buns during processing. According to the present invention, it is therefore possible to prevent defects owing to die cut shift, during a wire bonding or molding process at high temperature, and obtain a highly reliable semiconductor device owing to the excellent adhesiveness and workability of the adhesive agent. | 05-12-2011 |
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| 20090269267 | Continuous method and apparatus for functionalizing carbon nanotube - The present invention relates to a continuous method and apparatus for functionalizing a carbon nanotube, and more specifically, to a continuous method and apparatus for functionalizing a carbon nanotube including preparing a functionalized product by functionalizing a carbon nanotube solution including nitro compound according to the following Chemical Formula 1 and carbon nanotube mixture including an oxidizer for forming nitric acid under subcritical water or supercritical water condition of 50 to 400 atm and a continuous method and apparatus for functionalizing a carbon nanotube under subcritical water or supercritical water condition using nitro compound without using strong acids or strong bases. | 10-29-2009 |
| 20090297424 | Continuous method and apparatus of functionalizing carbon nanotube - The present invention relates to a continuous method for functionalizing a carbon nanotube, and more specifically, to a continuous method for functionalizing a carbon nanotube by feeding functional compounds having one or more functional group into a functionalizing reactor into which a carbon nanotube mixture including oxidizer is fed under a pressure of 50 to 400 atm and a temperature of 100 to 600° C. to a subcritical water or supercritical water condition of a pressure of 50 to 40 atm by using a continuously functionalizing apparatus to obtain the functionalized products, such that the functional group of the functional compound can be easily introduced to the carbon nanotube, thereby increasing the functionalized effect of the carbon nanotube and increasing the dispersibility accordingly. | 12-03-2009 |
| 20100065776 | Continuous methods and apparatus of functionalizing carbon nanotube - The present invention relates to a continuous method and apparatus of functionalizing a carbon nanotube, and more specifically, to a continuous method of functionalizing a carbon nanotube under subcritical water or supercritical water conditions without additional functionalizing processes, comprising: a) continuously feeding the carbon nanotube solution and an oxidizer under a pressure of 50 to 400 atm, respectively or together, and then preheating the mixture of said carbon nanotube solution and said oxidizer; b) functionalizing the carbon nanotube in the preheated said mixture under the subcritical water or the supercritical water condition of to 400 atm; c) cooling down the functionalized product into 0 to 100° C. and depressurizing the functionalized product into 1 to 10 atm; and d) recovering the cooled down and depressurized product. | 03-18-2010 |
| 20100080748 | CONTINUOUS METHOD AND APPARATUS OF PURIFYING CARBON NANOTUBES - Provided is a continuous method and apparatus of purifying carbon nanotubes. The continuous method and apparatus of purifying carbon nanotubes is characterized in a first purifying step for injecting a carbon nanotube liquid mixture containing an oxidizer into a purifying reactor under a sub-critical water or supercritical water condition at a pressure of 50 to 400 atm and a temperature of 100 to 600° C. to obtain a purified product, thereby removing amorphous carbon and producing the carbon nanotube product. | 04-01-2010 |
| 20100182065 | MULTI-PHASE ULTRA-WIDEBAND SIGNAL GENERATOR USING DIFFERENTIAL PULSE OSCILLATORS AND ARRAY THEREOF - The present invention relates to a multi-phase ultra-wideband signal generator using differential pulse oscillators and an array thereof. The multi-phase ultra-wideband signal generator using differential pulse oscillators and an array thereof includes N pulse oscillators for generating pulse signals based on supply of power. The multi-phase ultra-wideband signal generator further comprises N inverting amplification units for outputting inverted amplified signals of output signals of the N pulse oscillators when a number of pulse oscillators is at least two, wherein, when the number of pulse oscillators is an even or odd number, the pulse oscillators are arrayed such that they have a connection form in which output terminals OUT(+) and OUT(−) of a relevant pulse oscillator are connected to output terminals OUT(+) and OUT(−) of a next pulse oscillator through a relevant inverting amplification unit, and the connection form is consecutively applied to the pulse oscillators. | 07-22-2010 |
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| 20100031242 | METHOD AND APPARATUS FOR PROVISIONING A NODE WITH EXECUTABLE CODE - A method and apparatus for provisioning a node with executable code is provided herein. Prior to sending out a code request, a node ( | 02-04-2010 |
| 20100201535 | APPARATUS AND METHOD FOR ASSET TRACKING BASED ON UBIQUITOUS SENSOR NETWORK USING MOTION SENSING - Provided are an apparatus and method for asset tracking based on a ubiquitous sensor network (USN) using a motion sensing. The apparatus may include: a motion sensing manager to receive motion sensing information from a sensor; a filtering processor to filter the motion sensing information based on a filtering parameter and to determine whether a motion occurs based on the filtered motion sensing information; and a location information update (LU) manager to perform LU depending on whether the motion occurs. | 08-12-2010 |
| 20110051645 | SENSOR NETWORK SYSTEM AND COMMUNICATION METHOD THEREOF - Provided are a communication method and system for sensor network. In reporting event occurrence in a real-time sensor network application, a cycle time is divided into an event announcement period and a data transmission period to provide real-time transmission performance and energy efficiency. Each of the periods is again divided into the number of slots equal to the maximum depth of a network. Respective nodes sequentially operate according to their depths in a routing tree during the event announcement period to receive the signal transmitted from the lower node. To remove sleep delay, a slot next to the signal reception slot becomes a signal transmission slot. A node sensed an event transmits a signal informing event occurrence during its signal transmission slot, and this signal includes only the address of the transmission node. When a signal does not exist in the event announcement period, no traffic occurs in the data transmission period and the upper nodes maintain a sleep state. When a signal is transmitted during the event announcement period, nodes transmitting/receiving a corresponding signal operate during the data transmission period to transfer data packets. | 03-03-2011 |
| 20110138023 | PROGRAMMING METHOD OF NETWORK NODES IN SENSOR NETWORK AND OPERATING METHOD OF SENSOR NETWORK - Provided is a programming method of network nodes in sensor network. The programming method receives a code to be programmed in the network nodes. The programming method determines the kind of the received code. The programming method selects a programming scheme according to the determined kind of the code. The programming method programs the received code in the network nodes based on the selected programming scheme. | 06-09-2011 |
| 20110153107 | APPARATUS AND METHOD FOR SMART ENERGY MANAGEMENT BY CONTROLLING POWER CONSUMPTION - Disclosed are an apparatus and a method for smart energy management by controlling power consumption. Power consumption information is collected from one or more electrical device groups with a smart meter and electrical devices connected through gateways. When the method estimates that the power consumption will be larger than a threshold value, a control command is outputted to a load controller connected through the gateway and power consumption of electrical devices that belong to the electrical device using group is remotely controlled. According to an embodiment of the present invention, an energy company that produces and supplies energy can supply energy depending on a consumer's demand by using current facilities because the present invention can collect remotely energy consumption, analyze energy consumption patterns, and control automatically the energy consumption of electrical devices installed in a customer's area. The consumer who consumes energy can save the energy consumption and the charge of the energy consumption. | 06-23-2011 |
| 20110153865 | ENERGY-EFFICIENT COMMUNICATION METHOD IN GROUP INFORMATION-BASED SENSOR NETWORK AND SENSOR NETWORK SYSTEM USING THE METHOD - Provided are an energy-efficient communication method in a group information-based sensor network and a sensor network system using the method. A group exchanges group information and data with another group in order to provide an application service through inter-group cooperation in a sensor network. In this process, a target group is discovered, a communication path is established, and inter-group communication cycle information for energy-efficient communication is transmitted. On the basis of the group information and the communication cycle information, it is possible to minimize the network resource consumption and provide an energy-efficient inter-group communication method. | 06-23-2011 |
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| 20090064756 | VACUUM GAUGE CALIBRATION APPARATUS CAPABLE OF CALIBRATING AND TESTING WITHOUT DISPLACEMENT AND OPERATING METHOD THEREOF - The present invention provides a vacuum gauge calibration apparatus capable of calibrating and testing a vacuum gauge without displacement or separation of the vacuum gauge, the vacuum gauge being attached to a vacuum device under operation together with developing a movable vacuum gauge calibration device, and an operating method thereof. According to the present invention, there is provided an apparatus for calibrating and testing a vacuum gauge to be calibrated without displacement, the vacuum gauge being connected to a vacuum device, the apparatus comprising: a vacuum shut-off valve for opening and closing a piping for connecting the vacuum device to the to-be-calibrated vacuum gauge; and a movable vacuum gauge calibration device connected to the to-be-calibrated vacuum gauge, wherein the movable vacuum gauge calibration device includes: a reference vacuum gauge, a vacuum connection valve, a vacuum chamber, a gate valve, and an exhaust device which are connected to the to-be-calibrated vacuum gauge side in series; a gas supply source connected to the vacuum chamber for generating pressure in the vacuum chamber; a leak valve for controlling gas flow in the gas supply source and supplying the gas the vacuum chamber; and a vacuum gauge for the vacuum chamber for measuring vacuum pressure in the vacuum chamber. | 03-12-2009 |
| 20090260448 | Apparatus for Measuring Pressure by Using Diaphragm and Method of Pressure Measurement by Using Diaphragm - The present invention relates to a capacitance type pressure measurement apparatus by using a diaphragm, and more specifically to an apparatus for measuring pressure by using a diaphragm capable of measuring pressure of atmospheric pressure or less as well as pressure of atmospheric pressure or more without having a getter pump by fixedly mounting a pressure variable container on a sensor housing having a diaphragm mounted therein. | 10-22-2009 |
| 20090277273 | APPARATUS FOR MEASURING PRESSURE IN A VESSEL USING ACOUSTIC IMPEDANCE MATCHING LAYERS - The apparatus for measuring pressure inside a vessel using acoustic impedance matching layers may include an ultrasound exciting unit attached to the outer surface of the vessel wall that generates ultrasonic waves inside of the vessel. A first acoustic impedance matching layer attached to the inner surface of the vessel wall increases the transmitting efficiency of the ultrasonic waves. An ultrasound receiving unit attached to the outer surface of the vessel wall receives an ultrasonic signal traveling inside the vessel. A second acoustic impedance matching layer attached to the inner surface of the vessel wall increases the transmitting efficiency of the ultrasonic waves. A control unit connected to the ultrasound exciting unit controls the excitation signal transmitted into the ultrasound exciting unit. A pressure measuring unit connected to the control unit measures an internal pressure of the vessel based on the excitation signal and the received ultrasonic waves. | 11-12-2009 |
| 20090277275 | APPARATUS FOR MEASURING PRESSURE USING ACOUSTIC IMPEDANCE VARIATION - The present invention relates to an apparatus for measuring pressure inside a predetermined vessel based on the principle that the transmitting efficiency of ultrasonic waves is changed by acoustic impedance variation according to an internal pressure. The apparatus includes an ultrasound exciting unit | 11-12-2009 |
| 20090279391 | APPARATUS FOR MEASURING PRESSURE IN A VESSEL USING MAGNETOSTRICTIVE ACOUSTIC TRANSDUCER - The present invention relates to an apparatus for measuring pressure inside a vessel using a magnetostrictive acoustic transducer. The apparatus includes a magnetostrictive acoustic transducer, including an exciting coil unit wound on a first magnetization yoke disposed on an outer position of a vessel, a receiving coil unit wound on the first magnetization yoke, and a vibration unit disposed on an inner position of the vessel in which the first magnetization yoke is installed; a control unit for supplying a predetermined excitation current signal to the exciting coil unit; and a pressure measuring unit for measuring an internal pressure of the vessel based on an ultrasonic wave signal received by the receiving coil unit and an excitation current signal into the exciting coil unit. | 11-12-2009 |
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| 20080280211 | Electrolyte for Lithium Secondary Battery Comprising Chelating Agent and Lithium Secondary Battery Using the Same - Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode. | 11-13-2008 |
| 20100148115 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.1| 06-17-2010 | |
| 20100159321 | ELECTROLYTE FOR LITHIUM SECONDARY BATTERY COMPRISING CHELATING AGENT AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode. | 06-24-2010 |
| 20110079751 | THERMOELECTRIC CONVERSION MATERIAL AND PRODUCING METHOD THEREOF, AND THERMOELECTRIC CONVERSION ELEMENT USING THE SAME - Thermoelectric conversion materials, expressed by the following formula: Bi | 04-07-2011 |
| 20110079752 | ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is an electrode active material comprising a nickel-based lithium transition metal oxide (LiMO | 04-07-2011 |
| 20110089367 | PRECURSOR FOR PREPARATION OF LITHIUM TRANSITION METAL OXIDE - Provided is a precursor for the preparation of a lithium transition metal oxide that is used for the preparation of a lithium transition metal oxide as a cathode active material for a lithium secondary battery, through a reaction with a lithium-containing compound, wherein the precursor contains two or more transition metals, and sulfate ion (SO | 04-21-2011 |
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| 20090207072 | QUADRATURE RADAR APPARATUS - A quadrature radar apparatus includes a quadrature signal generating unit, a plurality of coupler modules connected to the signal generating unit, an antenna unit receiving transmission signals from the coupler modules and a reception signal reflected from a target, one or more phase delay modules connected between one or more of the coupler modules and the antenna unit to delay the phases of the transmission and reception signals by 90 degrees, a leakage signal canceling unit combining the reception signals inputted from the antenna unit through the first and second coupler modules and removes the transmission leakage signal. | 08-20-2009 |
| 20110121912 | ASYMMETRIC POWER DIVIDER - Disclosed herein is an asymmetric power divider. The asymmetric power divider includes a power dividing unit, a first matching network, and a second matching network. The power dividing unit supplies different amounts of power to a carrier amplifier and a peaking amplifier, which are connected in parallel. The first matching network is connected between the power dividing unit and the carrier amplifier so as to perform impedance matching between the power dividing unit and the carrier amplifier. The second matching network is connected between the power dividing unit and the peaking amplifier so as to perform impedance matching between the power dividing unit and the peaking amplifier. | 05-26-2011 |
| 20110150125 | DIGITAL RF CONVERTER, DIGITAL RF MODULATOR AND TRANSMITTER INCLUDING THE SAME - There are provided a digital RF converter capable of improving a dynamic range and a signal to noise ratio of a transmitter and a digital RF modulator and a transmitter including the same. The digital RF converter may include: a delta-sigma modulated bits (DSMB) sub-block that generates a current magnitude corresponding to least-significant n bits among input signals at a first sampling speed; a least-significant bit (LSB) sub-block that generates a current magnitude corresponding to intermediate k bits among the input signals at a second sampling speed lower than the first sampling speed; and a most-significant bit (MSB) sub block that generates a current magnitude corresponding to most-significant m bits among the inputs signals at the second sampling speed. | 06-23-2011 |
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| 20090260085 | APPARATUS, SYSTEM AND METHOD FOR BLOCKING MALICIOUS CODE - Provided are an apparatus, system and method for blocking malicious code. The apparatus includes a first malicious code detector for determining whether or not a received e-mail includes malicious code, on the basis of previously stored malicious code patterns, a second malicious code detector for performing second malicious code detection on a received e-mail determined by the first malicious code detector not to include malicious code, a pattern extractor for extracting a new malicious code pattern from malicious code detected by the second malicious code detector, and a transceiver for transferring the extracted new malicious code pattern to a pattern providing server. According to the apparatus, system and method, when one terminal detects a new malicious code pattern, a pattern providing server rapidly provides the new malicious code pattern to other terminals, and thus it is possible to rapidly and flexibly cope with the spread of malicious codes having new patterns | 10-15-2009 |
| 20090265201 | METHOD AND APPARATUS FOR DETERMINING SECURITY SOLUTION - Provided are a method and apparatus for determining a security solution. The method and apparatus generate a security solution analysis model for analyzing effects on investment of security solution combinations consisting of several security solution candidates on the basis of integer programming (IP), standardize various constraints that have significant effects on security solution determination on the basis of IP, and apply the standardized constraints to the security solution analysis model, thereby determining a security solution combination having the smallest residual risk while satisfying the constraints as an optimum security solution combination. | 10-22-2009 |
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| 20080279243 | Distributed Feedback (Dfb) Quantum Dot Laser Structure - A distributed feedback (DFB) quantum dot semiconductor laser structure is provided. The DFB quantum dot semi-conductor laser structure includes: a first clad layer formed on a lower electrode; an optical waveguide (WG) formed on the first clad layer; a grating structure layer formed on the optical WG and including a plurality of periodically disposed gratings; a first separate confinement hetero (SCH) layer formed on the grating structure layer; an active layer formed on the first SCH layer and including at least a quantum dot; a second SCH layer formed on the active layer; a second clad layer formed on the second SCH layer; an ohmic layer formed on the second clad layer; and an upper electrode formed on the ohmic layer. Accordingly, an optical WG is disposed on the opposite side of the active layer from the grating structure layer, thereby increasing single optical mode efficiency. And, an asymmetric multi-electrode structure is used for applying current, thereby maximizing purity and efficiency of the single mode semiconductor laser structure. | 11-13-2008 |
| 20090296766 | QUANTUM DOT LASER DIODE AND METHOD OF MANUFACTURING THE SAME - Provided are a quantum dot laser diode and a method of manufacturing the same. The method of manufacturing a quantum dot laser diode includes the steps of: forming a grating structure layer including a plurality of gratings on a substrate; forming a first lattice-matched layer on the grating structure layer; forming at least one quantum dot layer having at least one quantum dot on the first lattice-matched layer; forming a second lattice-matched layer on the quantum dot layer; forming a cladding layer on the second lattice-matched layer; and forming an ohmic contact layer on the cladding layer. Consequently, it is possible to obtain high gain at a desired wavelength without affecting the uniformity of quantum dots, so that the characteristics of a laser diode can be improved. | 12-03-2009 |
| 20110165716 | QUANTUM DOT LASER DIODE AND METHOD OF FABRICATING THE SAME - A quantum dot laser diode and a method of fabricating the same are provided. The quantum dot laser diode includes: a first clad layer formed on an InP substrate; a first lattice-matched layer formed on the first clad layer; an active layer formed on the first lattice-matched layer, and including at least one quantum dot layer formed of an InAlAs quantum dot or an InGaPAs quantum dot which is grown by an alternate growth method; a second lattice-matched layer formed on the active layer; a second clad layer formed on the second lattice-matched layer; and an ohmic contact layer formed on the second clad layer. | 07-07-2011 |
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| 20100015972 | METHOD AND APPARATUS FOR HANDOVER IN MOBILE COMMUNICATION NETWORK INCLUDING SATELLITE NETWORK - Provided are a method and mobile communication terminal for handover in a mobile communication network including at least one mobile communication base station and a communication satellite. The handover method includes the steps of: (a) calculating a signal power received from a currently communicating mobile communication base station among the at least one mobile communication base station; (b) calculating a signal power received from each of the communication satellite and the at least one mobile communication base station except the base station of step (a); (c) selecting a mobile communication base station having the highest among the calculated signal powers except the signal power received from the communication satellite and the signal power received from the base station of step (a); and (d) when the signal power calculated in step (a) is below a predetermined minimum handover power, a difference between the signal power of the selected mobile communication base station and the signal power calculated in step (a) is equal to or below a first terrestrial handover sensitivity, and there is no other mobile communication base station capable of communicating with the mobile communication terminal, performing handover to the communication satellite. | 01-21-2010 |
| 20100135274 | HIERARCHICAL RANDOM ACCES METHOD FOR WIRELESS COMMUNICATION SYSTEM HAVING SIGNIFICANTLY LARGE CELL - Disclosed is a hierarchical random access method for a wireless communication system having a significantly large cell. According to the present invention, a length of a preamble sequence and a length of a reference slot may be designed based on a terminal having greatest capacity of adjusting a timing error arrived at a base station, and a slot length may be designed to be an integer multiple of the length of the reference slot depending on a timing error correction capacity, thereby enabling terminals to use various slot lengths. | 06-03-2010 |
| 20100138713 | INTERACTION METHOD BETWEEN ARQ AND HARQ FOR SYSTEMS WITH LONG ROUNDTRIP DELAY - Disclosed is an interaction method between an automatic repeat request (ARQ) and a hybrid automatic repeat request (HARQ) in a system having a long roundtrip delay. A transmission window for the ARQ is operated using inner feedback information from the HARQ, and a waiting window is operated using ARQ status information. | 06-03-2010 |
| 20100182924 | METHOD OF CHANGING TRANSMISSION MODE, METHOD OF REQUESTING PACKET RETRANSMISSION, AND METHOD OF RETRANSMITTING PACKET - The present invention is directed to a method of changing a transmission mode, a method of requesting a packet retransmission, and a method of retransmitting a packet with respect to a broadcasting or multicast service. According to the invention, a plurality of terminals provided with one broadcasting or multicast service shares one random access channel (RACH) so as to transmit channel information. Accordingly, a base station receives the channel information through one RACH from the terminal or detects a packet collision generated in the RACH to confirm a request for changing the transmission mode or a request for maintaining the transmission mode by the terminal. | 07-22-2010 |
| 20110064017 | RESOURCE ALLOCATION METHOD FOR MBMS IN AN INTEGRATED COMMUNICATION SYSTEM AND A RESOURCE ALLOCATION CONTROLLER THEREFOR - Disclosed is a resource allocation method for an MBMS in an integrated communication system including a satellite communication system, in which a multicast service being provided by the terrestrial communication system is switched to the satellite communication system and the terrestrial communication system stops providing the same multicast service when the number of cells of the terrestrial communication system providing the same multicast service is equal to or larger than a predetermined threshold value and there is a channel available for an additional multicast service in the satellite communication system. | 03-17-2011 |
| 20110141983 | BUFFER STATUS REPORTING METHOD FOR UPLINK SCHEDULING AND COMMUNICATION SYSTEM USING THE SAME - In a satellite communication system having a long round-trip delay time, a user terminal reports initial buffer status information when the communication between the satellite and the use terminal started. When a trigger, a timer or padding requiring buffer status information report is generated, the user terminal checks whether there are data to be re-transmitted due to transmission failure from the previous BSR. When transmission-failed data exists, the user terminal sets buffer status amount, which is reported through BSR, as a value that is obtained by adding the amount of transmission-failed data to the amount of newly added after previous report. When there are no transmission-failed data, the user terminal reports BSR which is set as the amount of newly added data to the buffer after previous report. For discriminating entire buffer status reporting and the increased amount of data reporting, the reserved index of a header file is used. | 06-16-2011 |
| 20110143752 | MOBILE COMMUNICATION SYSTEM AND CELL RESELECTION METHOD THEREOF - Provided are a mobile communication system and a cell reselection method of a mobile communication terminal. The mobile communication system includes two or more communication systems using different transmission modes and a mobile communication terminal connectable to the two or more communication systems. The mobile communication terminal measures received signal strength of a satellite communication cell when being switched to an idle mode, divides priority of a satellite communication system using the measured received signal strength and location information of the mobile communication terminal, and sets a first threshold value necessary for cell reselection of the satellite communication system. | 06-16-2011 |
| 20110149836 | POWER CONTROLLED ADAPTIVE MODULATION AND CODING SCHEME IN SATELLITE COMMUNICATIONS SYSTEM - A power controlled adaptive modulation and coding (AMC) scheme in a satellite communications system includes: calculating, by a user terminal, a received signal-to-noise ratio (SNR) through a packet received from a base station; removing a power control level applied to a packet received before the received packet from the calculated received SNR, and deciding the value obtained by decreasing the calculated received SNR by the power control level; deciding an AMC mode based on the decided received SNR; determining whether power control is required, and deciding a required power control magnitude depending on a channel state positioned in the AMC mode range; transmitting the decided AMC mode and the decided power control information to the base station through channel quality indicator (CQI) feedback; and applying the AMC mode based on information received, and increasing a power by a power control magnitude decided from the received information. | 06-23-2011 |
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| 20090267020 | Adjuvant for Controlling Polishing Selectivity and Chemical Mechanical Polishing Slurry - Disclosed is an adjuvant for controlling polishing selectivity when polishing a cationically charged material simultaneously with an anionically charged material. CMP slurry comprising the adjuvant is also disclosed. The adjuvant comprises: (a) a polyelectrolyte that forms an adsorption layer on the cationically charged material in order to increase the polishing selectivity of the anionically charged material; (b) a basic material; and (c) a fluorine-based compound. when the adjuvant for controlling polishing selectivity of CMP slurry according to the present invention is applied to a CMP process, it is possible to increase the polishing selectivity of a silicon oxide layer, to obtain a uniform particle size of CMP slurry, to stabilize variations in viscosity under an external force and to minimize generation of microscratches during a polishing process. Therefore, the adjuvant for CMP slurry according to the present invention can improve reliability and productivity during the fabrication of very large scale integrated semiconductors. | 10-29-2009 |
| 20090285993 | Antireflective coating composition with stain resistance, antireflective coating film using the same, and its manufacturing method - An antireflective coating composition includes a hydrolytic condensate (C1) of alkoxy silane (C11) and fluoric alkoxy silane (C12); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; and a liquid dispersion-enhancing chelating agent (C3). A coating film to which the above composition is applied controls refractive index, surface energy, film strength and so on, so it ensures excellent antireflective characteristic, excellent scratch resistance, good erasure of liquid stains such as fingerprints, and particularly excellent dust removal, so it may be usefully applied to an outermost layer of a front surface of a display regardless of kind of a display substrate or presence of an additional coating layer. | 11-19-2009 |
| 20100064939 | SILOXANE BASED COATING COMPOSITION HAVING EXCELLENT DYEABILILTY ABRASION RESISTANCE, GLOSSINESS AND TRANSPARENCY,AND A PREPARATION METHOD THEREOF, AND AN OPTICAL LENZ COATED BY SAID COATING COMPOSITION - A siloxane based coating composition having excellent dyeability, abrasion resistance, glossiness and transparency, a preparation method thereof, and an optical lens coated by the coating composition are suggested. The siloxane based coating composition includes organo silane compound, inorganic oxide (H-index filler), solvent and a dyeing improving material. The dyeing improving material adopts nitric acid, hydrochloric acid, phosphoric acid, sodium nitrate, potassium nitrate, silver nitrate, or the like. The siloxane based coating composition shows excellent dyeability owing to the dyeing improving material, excellent abrasion resistance owing to the organo silane compound, and excellent glossiness and transparency, so it may be applied as a coating film on a surface of a plastic lens such as optical lens, industrial safety lens and leisure-purpose goggle that require high transparency. | 03-18-2010 |
| 20100076109 | UV-Curable Antireflective Coating Composition, Antireflective Coating Film Using the Same, and its Manufacturing Method - An antireflective coating composition includes a photopolymerizable acrylate monomer (C1); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; a photopolymerization initiator (C3); and at least one liquid dispersion-enhancing chelating agent (C4) selected from the group consisting of Mg(CF | 03-25-2010 |
| 20100139513 | METHOD FOR FORMING FINE PATTERNS - A method for forming fine patterns includes (S | 06-10-2010 |
| 20100255192 | COLLOIDAL PHOTONIC CRYSTALS USING COLLOIDAL NANOPARTICLES AND METHOD FOR PREPARATION THEREOF - The present invention relates to colloidal photonic crystals using colloidal nanoparticles and a method for the preparation thereof, wherein by adding a viscoelastic material into a solution containing the colloidal nanoparticles when preparing the colloidal photonic crystals, a uniform volume contraction occurs due to the elasticity of the viscoelastic material even when a nonuniform volume contraction occurs while drying a dispersion medium in the colloidal solution. Thus, it is possible to prepare 2 or 3 dimensional colloidal photonic crystals of large scale with no defects in less time. | 10-07-2010 |
