| Patent application number | Description | Published |
|---|
| 20110074309 | FIELD EMISSION DEVICE AND METHOD OF OPERATING THE SAME - Provided are a field emission device enabling rapid pulse operation and a method of operating the same. The field emission device includes a cathode electrode including a field emission source, an anode electrode disposed to face the cathode electrode and accelerating electrons emitted from the field emission source, a current controller controlling field emission current flowing through the cathode electrode, and a field emission controller applying a pull-up voltage to the cathode electrode when the current controller is turned off. | 03-31-2011 |
| 20110148310 | FIELD EMISSION LAMP - Provided is a field emission lamp (FEL), which includes a plurality of cathode electrodes formed above a first substrate, an anode electrode formed under a second substrate to face the cathode electrode, a fluorescent layer composed of red, green and blue (RGB) patterns formed alternately on the anode electrode in an oblique direction, and a plurality of emitters formed on the cathode electrodes to correspond to the RGB patterns. According to the present invention, as an FEL having a fast response time is used as a backlight unit, a color breaking phenomenon can be prevented in a color sequential driving method. | 06-23-2011 |
| 20120148027 | FIELD EMISSION X-RAY TUBE AND METHOD OF OPERATING THE SAME - Provided is a field emission X-ray tube. The field emission X-ray tube includes a cathode electrode provided to one end of a vacuum vessel and including a field emission emitter, an anode electrode provided to the other end of the vacuum vessel in an extending direction of the vacuum vessel, and a gate electrode provided on an outer surface of the vacuum vessel adjacent to the cathode electrode. | 06-14-2012 |
| 20120250827 | FIELD EMISSION X-RAY TUBE APPARATUS FOR FACILITATING CATHODE REPLACEMENT - The present disclosure relates to a field emission X-ray tube apparatus for facilitating cathode replacement, and more particularly, to a field emission X-ray tube apparatus for facilitating cathode replacement in which gates and cathodes are easily arranged through a joining member and a rotation preventing guide when gates and insulating spacers are rotated and joined with the cathodes while the cathodes and respective gates maintain electrical insulation, thereby easily replacing the cathodes. | 10-04-2012 |
| 20120306348 | FIELD EMITTER - Disclosed is a field emitter, including: a cathode electrode in a shape of a tip; an emitter having a diameter smaller than a diameter of the cathode electrode and formed on the cathode electrode; and a gate electrode having a single hole and located above the emitter while maintaining a predetermined distance from the emitter. | 12-06-2012 |
| 20120308716 | MANUFACTURING METHOD OF CNT EMITTER WITH DENSITY CONTROLLED CARBON NANOTUBE - Provided is a manufacturing method of a CNT emitter with density controlled CNT, comprising: (i) fabricating a CNT paste by dispersing a carbon nanotube (CNT) powder, two kinds or more of inorganic fillers which have a lower melting temperature than the CNT and different oxidation degrees of the CNT, and an organic binder in a solvent; (ii) coating the CNT paste on an electrode formed above a substrate; (iii) sintering the substrate coated with the CNT paste to selectively oxidize the CNT around one kind of inorganic filler among two kinds or more of the inorganic fillers; and (iv) treating the surface of the CNT paste so that the surface of the CNT paste is activated. | 12-06-2012 |
| 20130022173 | STACKED X-RAY TUBE APPARATUS USING SPACER - The present disclosure relates to a stacked x-ray tube apparatus using a spacer, and more particularly, to a stacked x-ray tube apparatus using a spacer that makes it possible to reduce the size of an x-ray tube by forming a stacked structure, with electric insulation and predetermined gaps maintained for each electrode, by forming a stacked x-ray tube by inserting insulating spacers (for example, ceramic) between a exhausting port, a cathode, a gate, a focusing electrode, and an anode and bonding them with an adhesive substance, and then inserting a spacer between a field emitter on a cathode substrate and a gate hole connected with a gate electrode. | 01-24-2013 |
| 20130028386 | ELECTRIC FIELD EMISSION X-RAY TUBE APPARATUS EQUIPPED WITH A BUILT-IN GETTER - The present disclosure relates to an electric field emission x-ray tube apparatus equipped with a built-in getter, and more particularly, to an electric field emission x-ray tube apparatus equipped with a built-in getter that makes it possible to reduce the size of an x-ray tube by forming a stacked structure, with electric insulation and predetermined gaps maintained for each electrode, by manufacturing an x-ray tube having a stacked structure by inserting insulating spacers (for example, ceramic) between an exhausting port, a cathode, a gate, a focusing electrode, and an anode and bonding them with an adhesive substance, and then inserting a spacer between a field emitter on a cathode substrate and a gate hole connected with a gate electrode. | 01-31-2013 |
| 20130063019 | VACUUM WINDOW WITH EMBEDDED INFORMATION DISPLAY - Disclosed are a semiconductor apparatus and a manufacturing method thereof. The manufacturing method of the semiconductor apparatus includes: forming a semiconductor chip on a semiconductor substrate; adhering a carrier wafer with a plurality of through holes onto the semiconductor chip; polishing the semiconductor substrate; forming a first via hole at the rear side of the polished semiconductor substrate; forming a first metal layer below the polished semiconductor substrate and at the first via hole; and removing the carrier wafer from the polished semiconductor substrate. | 03-14-2013 |
| 20130195254 | X-RAY CONTROL UNIT USING MONOCRYSTALLINE MATERIAL - An X-ray control unit using a monocrystalline material which controls only a specific wavelength of X-rays, by using the monocrystalline material as a filter. The X-ray control unit includes a light source configured to generate X-rays, an X-ray control filter formed of a monocrystalline material having grown in one direction and configured to filter the X-rays generated by the light source to reflect and transmit characteristic X-rays, and an adjustor configured to adjust the light source and the X-ray control filter to arbitrary angles. Since X-rays having a specific wavelength can be selectively used by using a filter, the X-rays can be easily controlled and their intensity can be easily regulated. A characteristic line of the X-rays can be controlled and their intensity can be regulated without directly controlling an X-ray source. | 08-01-2013 |
| 20130271037 | CURRENT CONTROLLING DEVICE AND ELECTRIC FIELD EMISSION SYSTEM INCLUDING THE SAME - Provided is a current controlling device for controlling an electric field emission current in connection with an electric field emission device which emits electrons in response to an applied voltage, the device including: a first current controlling transistor forming a current path in response to a first gate voltage; a second current controlling transistor connected between the field emission device and the first current controlling transistor and forming a current path in response to a second gate voltage; and a control logic controlling the first and second gate voltages, wherein the control logic controls a upper limit of the field emission current by using the first gate voltage. | 10-17-2013 |
| 20130286036 | APPARATUS AND METHOD FOR PRODUCING MAKEUP AVATAR - An apparatus and method for producing a makeup avatar is disclosed. The apparatus may include a spectrum information metadata generating unit to generate spectrum information metadata, based on skin spectrum information of a user and cosmetics spectrum information related to makeup, a makeup information generating unit to receive, from the user, a makeup avatar to which makeup is applied through a user terminal, and to generate makeup information of the makeup avatar, a control information determining unit to determine control information for controlling a makeup status of the makeup avatar, based on the makeup information and the spectrum information metadata, and a makeup avatar metadata generating unit to generate makeup avatar metadata, based on spectrum information metadata corresponding to the control information and the makeup information. | 10-31-2013 |
| 20130336461 | X-RAY TUBE AND METHOD OF CONTROLLING X-RAY FOCAL SPOT USING THE SAME - An X-ray tube is provided. The X-ray tube includes a cathode electrode which is disposed in one end of a vacuum container and includes an emitter emitting an electron; a gate electrode which is disposed in the vacuum container to be adjacent to the cathode electrode; an anode electrode which is disposed in the vacuum container of the other end of a direction in which the vacuum container extends and inclines with respect to the cathode electrode; and a focusing electrode which is disposed in the vacuum container along an inner circumference surface of the vacuum container between the gate electrode and the anode electrode. The focusing electrode has an opening of which a plan cross section has a maximum width and a minimum width different from each other. | 12-19-2013 |
| 20140111081 | FIELD EMITTER ELECTRODE AND METHOD OF MANUFACTURING THE SAME - Disclosed is a field emitter electrode including a bonding unit formed on a substrate, and a plurality of carbon nanotubes fixed to the substrate by the bonding unit, in which the bonding unit includes a carbide-based first inorganic filler and a second inorganic filler formed of a metal. | 04-24-2014 |
| 20140161232 | X-RAY TUBE - An X-ray tube is provided. The X-ray tube includes a first housing including an X-ray window formed therein, a second housing being rotatable about a rotational shaft installed within the first housing, an anode installed on the rotational shaft within the second housing and positioned in one side of the rotational shaft in an extending direction of the rotational shaft, an emitter installed on the rotational shaft within the second housing, positioned in the other side of the rotational shaft in the extending direction of the rotational shaft, and emitting electron beams, a lens unit installed between the anode and the emitter and focusing the electron beams emitted from the emitter to the anode, and an electron beam deflection unit installed on the rotational shaft to deflect an angle of electron beams moving toward the anode from the lens unit. | 06-12-2014 |
| 20140210814 | APPARATUS AND METHOD FOR VIRTUAL MAKEUP - Provided are an apparatus and method for virtual makeup. The method for virtual makeup includes generating a virtual makeup history including pieces of information about a virtual makeup process, generating virtual makeup layers based on a plurality of related pieces of information among the pieces of information stored in the virtual makeup history, and generating a virtual makeup template by merging at least one of the virtual makeup layers. Accordingly, it is possible to reduce the time taken for a virtual makeup operation. | 07-31-2014 |
| 20140312536 | EPOXY RESIN COMPOSITION FOR NEUTRON SHIELDING, AND METHOD FOR PREPARING THE SAME - Provided is an epoxy resin composition including a nano-sized radioactive radiation shielding material which has superior shielding effects for against radiation, and to a method for preparing same. In particular, the method for preparing the epoxy resin composition for neutron shielding, includes the steps of: a step of mixing a boron compound powder for absorbing neutrons, optionally a high density metal powder for shielding from against gamma rays and a flame retardant powder, respectively separately or in combination, with an amine-based curing agent to obtain a mixture of a curing agent and a powder; an ultrasonic wave treating step of applying ultrasonic waves to the mixture to coat the surface of the powder with the amine-based curing agent and to disperse the powder in the curing agent; and a dispersing step of mixing and dispersing the amine-based curing agent, that was dispersed and includes the powder treated with ultrasonic waves, in an epoxy resin. | 10-23-2014 |
| 20140346975 | MULTI-ELECTRODE FIELD EMISSION DEVICE HAVING SINGLE POWER SOURCE AND METHOD OF DRIVING SAME - A field emission device and a method of driving the multi-electrode field emission device having a single driving power source are disclosed. The field emission device includes a cathode electrode, one or more gate electrodes, a voltage division unit, and a power source unit. The cathode electrode is figured such that at least one emitter is formed thereon. The gate electrodes are disposed between an anode electrode and the cathode electrode, and each have one or more openings through which electrons emitted from the emitter can pass. The voltage division unit has one or more divider resistors, and divides a voltage applied from the power source unit using the divider resistors and then applies partial voltages to the one or more gate electrodes. The power source unit includes a single power source, and applies the voltage to the voltage division unit. | 11-27-2014 |
| 20140369460 | METHOD AND APPARATUS FOR GENERATING X-RAYS IN COMPUTER TOMOGRAPHY SYSTEM - A method and apparatus for generating X-rays that can acquire an X-ray image of a subject at a high speed are provided. When a CT system checks a subject, the CT system can acquire an X-ray image of the subject through rotating X-rays that are emitted from the X-ray generating apparatus and thus an | 12-18-2014 |
| 20150063549 | X-RAY TUBE HAVING ANODE ELECTRODE - Provided is an X-ray tube. The X-ray tube includes an electrode on which an electron beam impacts to generate an X-ray, and a window on which the electrode is disposed and through which the X-ray generated from the electrode is transmitted. The electrode includes a channel passing through the electrode, and the electron beam is provided into the channel to generate the X-ray. | 03-05-2015 |
| 20150138194 | ASSEMBLY SIMULATION APPARATUS AND METHOD FOR WOODEN STRUCTURE - An assembly simulation apparatus and method for a wooden structure are provided. The assembly simulation apparatus for a wooden structure includes an element analysis unit for analyzing shapes of a plurality of elements constituting a three-dimensional (3D) wooden structure model and a coupling relation between the elements. A relation graph generation unit generates a relation graph based on the analyzed shapes of the plurality of elements and the analyzed coupling relation between the elements. An animation creation unit creates an animation of a movement path depending on a task for coupling or separating the plurality of elements, based on the generated relation graph. An animation play unit simulates an assembly method for the wooden structure by playing the created animation depending on the assembly method for the wooden structure. | 05-21-2015 |
| 20150146865 | FIELD EMISSION DEVICE HAVING FIELD EMITTER INCLUDING PHOTOELECTRIC MATERIAL AND METHOD OF MANUFACTURING THE SAME - Provided are a field emission device and a method of manufacturing the same. The field emission device includes an anode electrode and a cathode electrode which are opposite to each other, a counter layer provided on the anode electrode, and a field emitter provided on the cathode electrode and facing the counter layer. Herein, the field emitter includes a carbon nanotube emitting cold electrons and a photoelectric material emitting photo electrons. | 05-28-2015 |
| 20150193563 | METHOD FOR CREATING TEMPLATE OF BUILDING COMPONENT, METHOD FOR CREATING PRIMITIVE, AND APPARATUS FOR MODELING BUILDING COMPONENT - A building component modeling apparatus records a process of creating the first component through at least one first primitive among a plurality of building primitives. The building component modeling apparatus analyzes the process of creating the first component to extract at least one first parameter defining the first component. The building component modeling apparatus creates a template of the first component by using the at least one first parameter. | 07-09-2015 |
| 20150195434 | THREE-DIMENSIONAL FACE SCANNING APPARATUS - A three-dimensional (3D) face scanning apparatus is provided. The 3D face scanning apparatus includes a housing body configured to comprise a darkroom formed inside, and a face positioning part with an opening in front of the darkroom, allowing a user's face to be placed in the darkroom therethrough; a camera module installed at a rear of the darkroom to capture stereo images of the user's face; and a lighting module installed in the darkroom to illuminate the face. The 3D face scanning apparatus enables an ordinary user to easily perform 3D face scanning, and has improved mobility due to its compact structure. | 07-09-2015 |
| 20150216025 | METHOD FOR DRIVING MULTI ELECTRIC FIELD EMISSION DEVICES AND MULTI ELECTRIC FIELD EMISSION SYSTEM - Provided is a method of driving multi electrical field emission devices. The method includes: respectively connecting first current control circuit devices for current path formation to a plurality of electric field emission devices; commonly connecting a second current control circuit device to the first current control circuit devices to commonly control the first current control circuit devices; and driving the first current control circuit devices at different timings when the second current control circuit device is driven. | 07-30-2015 |
| Patent application number | Description | Published |
|---|
| 20090146527 | PIEZOELECTRIC MICROSPEAKER USING MICROELECTROMECHANICAL SYSTEMS AND METHOD OF MANUFACTURING THE SAME - A piezoelectric microspeaker using microelectromechanical systems (MEMS) and a method of manufacturing the same are provided. The piezoelectric microspeaker includes a piezoelectric layer disposed on an elastic thin layer, and a resonance change unit patterned on one of a bottom surface of the elastic thin layer and a top surface of the piezoelectric layer. | 06-11-2009 |
| 20090154735 | PIEZOELECTRIC MICROPHONE, SPEAKER, MICROPHONE-SPEAKER INTEGRATED DEVICE AND MANUFACTURING METHOD THEREOF - A piezoelectric microphone, a speaker, a microphone-speaker integrated device and a manufacturing method thereof are provided. The microphone-speaker integrated device includes a silicon substrate and an insulating layer deposited on the silicon substrate; a piezoelectric plate formed on the insulating layer; and a mating electrode formed on the piezoelectric plate. The mating electrode is patterned with a polarity arrayed in series. | 06-18-2009 |
| 20090154736 | APPARATUS FOR GENERATING DIRECTIONAL SOUND AND MOBILE TERMINAL USING THE SAME - Provided are an apparatus for generating directional sound and a mobile terminal using the apparatus. The apparatus includes a signal controller for dividing and generating a reference signal into signals having three or more levels and phases, a first signal processor and a second signal processor for controlling a first signal and a second signal having levels and phases canceling each other among the signals generated from the signal controller, a central signal processor for controlling a signal having the same level and phase as the reference signal among the signals generated from the signal controller, a first speaker array and a second speaker array for converting signals output from the first signal processor and the second signal processor into sound signals and outputting the sound signals, and a central speaker for converting a signal output from the central signal processor into a sound signal and outputting the sound signal, and arranged between the first speaker array and the second speaker array. | 06-18-2009 |
| 20100158281 | MICRO-ELECTROMECHANICAL SYSTEMS (MEMS) MICROPHONE AND METHOD OF MANUFACTURING THE SAME - Provided are a micro-electromechanical systems (MEMS) microphone and a method of manufacturing the same. A manufacturing process is simplified compared to a conventional art using both upper and lower substrate processes. Since defects which may occur during manufacturing are reduced due to the simplified manufacturing process, the manufacturing throughput is improved, and since durability of the MEMS microphone is improved, system stability against the external environment is improved. | 06-24-2010 |
| 20110062912 | ENERGY AND POWER MANAGEMENT INTEGRATED CIRCUIT DEVICE - Provided is an energy and power management integrated circuit (IC) device. The energy and power management IC device includes a plurality of energy conversion devices for harvesting energy from respective energy conversion sources and converting the energy into electric energy, an energy management IC (EMIC) for converting the electric energy converted by the energy conversion devices into stable energy, a storage device for storing the energy or power converted by the EMIC, a power management IC (PMIC) for receiving and distributing the power stored in the storage device, and a plurality of output load devices for consuming the power distributed by the PMIC. Accordingly, it is possible to harvest energy in an environmentally friendly way and semi-permanently use the energy without changing a battery. | 03-17-2011 |
| 20110138882 | SEMICONDUCTOR GAS SENSOR HAVING LOW POWER CONSUMPTION - Provided are a structure and operating method of a semiconductor gas sensor having low power consumption. The semiconductor gas sensor is adapted to adsorb gas to a low-dimensional semiconductor nanomaterial at room temperature, output a change in resistance of the low-dimensional semiconductor nanomaterial, apply power to a heater, desorb the gas adsorbed to the low-dimensional semiconductor nanomaterial, and return the resistance of the low-dimensional semiconductor nanomaterial back to initial resistance. The semiconductor gas sensor senses the gas at room temperature using the low-dimensional semiconductor nanomaterial having a high-sensitivity characteristic at room temperature, and drives the heater only when the adsorbed gas is desorbed. Thereby, it is possible to improve a gas sensing characteristic, reduce power consumption, and provide a rapid response speed. | 06-16-2011 |
| 20110140680 | APPARATUS AND METHOD FOR EXTRACTING MAXIMUM POWER FROM SOLAR CELL - An apparatus and method for extracting maximum power from a solar cell are provided. The apparatus includes a solar cell for producing power from solar energy, a maximum power extractor for generating a pulse width modulation signal for extracting the maximum power from the solar cell, and a DC-DC converter for adjusting an amount of current generated from the solar cell according to the pulse width modulation signal. | 06-16-2011 |
| 20110141854 | ACOUSTIC SENSOR AND METHOD OF FABRICATING THE SAME - A condenser-type acoustic sensor is provided. The acoustic sensor includes an acoustic chamber formed by etching an upper portion of a substrate, an insulating layer formed on the substrate and having a central area etched so that the acoustic chamber is exposed, a diaphragm formed on the insulating layer, and a stationary electrode formed on the diaphragm. Thus, a nonlinear component resulting from horizontal movement of the support and the diaphragm is removed to improve a sound-pressure response characteristic, and a substrate backside process can be omitted to simplify a fabrication process and improve a yield. | 06-16-2011 |
| 20110150036 | FLEXIBLE THERMOELECTRIC GENERATOR, WIRELESS SENSOR NODE INCLUDING THE SAME AND METHOD OF MANUFACTURING THE SAME - Provided are a flexible thermoelectric generator, a wireless sensor node including the same and a method of manufacturing the same. The flexible thermoelectric generator includes a plurality of P-type semiconductors and a plurality of N-type semiconductors, which are alternately arranged, an upper metal for connecting upper surfaces of the adjacent P-type semiconductor and N-type semiconductor, a lower metal for connecting lower surfaces of the adjacent P-type semiconductor and N-type semiconductor, and alternately disposed with respect to the upper metal, a P-type metal connected to at least one P-type semiconductor among the plurality of P-type semiconductors, and an N-type metal connected to at least one N-type semiconductor among the plurality of N-type semiconductors. | 06-23-2011 |
| 20120187077 | MICRO-ELECTROMECHANICAL SYSTEMS (MEMS) MICROPHONE AND METHOD OF MANUFACTURING THE SAME - Provided are a micro-electromechanical systems (MEMS) microphone and a method of manufacturing the same. A manufacturing process is simplified compared to a conventional art using both upper and lower substrate processes. Since defects which may occur during manufacturing are reduced due to the simplified manufacturing process, the manufacturing throughput is improved, and since durability of the MEMS microphone is improved, system stability against the external environment is improved. | 07-26-2012 |
| 20120198918 | MICROELECTROMECHANICAL SYSTEMS TYPE SEMICONDUCTOR GAS SENSOR USING MICROHEATER HAVING MANY HOLES AND METHOD FOR MANUFACTURING THE SAME - Disclosed are an MEMS type semiconductor gas sensor using a microheater having many holes and a method for manufacturing the same. The MEMS type semiconductor gas sensor includes: a substrate of which a central region is etched with a predetermined thickness; a second membrane formed at an upper portion of the central region of the substrate and having many holes; a heat emitting resistor formed on the second membrane and having many holes; a first membrane formed on the second membrane including the heat emitting resistor and having many holes; a sensing electrode formed on the first membrane and having many holes; and a sensing material formed on the sensing electrode. | 08-09-2012 |
| 20130075255 | MEMS ELECTROCHEMICAL GAS SENSOR - Disclosed is an electrochemical gas sensor using micro electro mechanical systems (MEMS). The MEMS electrochemical gas sensor includes: a substrate a lower central region of which is etched by a predetermined thickness; a first insulation film formed on the substrate; a heat emitting resistance body formed on the first insulation film; a second insulation film formed on the heat emitting resistance body; a reference electrode formed in an upper central region of the second insulation film; a solid electrolyte formed on the reference electrode; and a detection electrode formed on the solid electrolyte. | 03-28-2013 |
| 20130100779 | ACOUSTIC SENSOR AND FABRICATION METHOD THEREOF - A method for fabricating an acoustic sensor according to an exemplary embodiment of the present disclosure includes: forming an acoustic sensor unit by forming a lower electrode on an upper portion of a substrate, forming etching holes on the lower electrode, forming a sacrifice layer on an upper portion of the lower electrode, and coupling a diaphragm to an upper portion of the sacrifice layer; coupling a lower portion of the substrate of the acoustic sensor unit to a printed circuit board on which a sound pressure input hole is formed so as to expose the lower portion of the substrate of the acoustic sensor unit to the outside through the sound pressure input hole; attaching a cover covering the acoustic sensor unit on the printed circuit board; etching the substrate of the acoustic sensor unit to form an acoustic chamber; and removing the sacrifice layer. | 04-25-2013 |
| 20140061825 | MICRO ELECTRO MECHANICAL SYSTEM(MEMS) ACOUSTIC SENSOR AND FABRICATION METHOD THEREOF - Provided are a micro electro mechanical system (MEMS) acoustic sensor for removing a nonlinear component that occurs due to a vertical motion of a lower electrode when external sound pressure is received by fixing the lower electrode to a substrate using a fixing pin, and a fabrication method thereof. The MEMS acoustic sensor removes an undesired vertical motion of a fixed electrode when sound pressure is received by forming a fixing groove on a portion of the substrate and then forming a fixing pin on the fixing groove, and fixing the fixed electrode to the substrate using the fixing pin, and thereby improves a frequency response characteristic and also improves a yield of a process by inhibiting thermal deformation of the fixed electrode that may occur during the process. | 03-06-2014 |
| 20140208838 | MICRO ELECTRO MECHANICAL SYSTEM CATALYTIC COMBUSTIBLE GAS SENSOR USING POROUS MEMBRANE EMBEDDED MICRO-HEATER - Provided is a catalytic combustible gas sensor using a porous membrane embedded micro-heater and a micro electro mechanical system (MEMS) technology. The present disclosure provides a gas sensor that is structurally, mechanically, and electrically stable, and has a simple device fabrication process in a MEMS catalytic combustible gas sensor that is miniaturized and also consumes a significantly small amount of power by puncturing a plurality of holes in membranes, a heating resistor, and a sensing electrode, by etching and thereby thermally isolating a substrate by a predetermined thickness through the plurality of holes, and by including a sensing structure formed using a sensing material and a compensation structure formed using a compensation material. | 07-31-2014 |
| Patent application number | Description | Published |
|---|
| 20090150997 | APPARATUS AND METHOD FOR DETECTING MALICIOUS FILE IN MOBILE TERMINAL - Provided is an apparatus and method for detecting a malicious file that attempts to initiate communication in a mobile terminal without a user's approval. The method of detecting a malicious file in a mobile terminal includes: determining whether a file to be examined is an executable file; when the file is an executable file, examining whether the file is a malicious file that can cause unapproved communication based on at least one predetermined examination condition; and outputting the result of examining whether the file is the malicious file. Accordingly, an attack caused by a new type of malicious code can be coped with. | 06-11-2009 |
| 20120106575 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM - Disclosed is an apparatus and method for transmitting/receiving data using a low-density parity check (LDPC) coding scheme in a communication system. The method includes generating a multi-user data packet containing data to be transmitted to a plurality of users, encoding the multi-user data packet as a BCC and an LDPC code, and transmitting the encoded multi-user data packet to the plurality of users. In the method, the encoding of the multi-user data packet encodes MPDU subframes corresponding to each of the plurality of users in the multi-user data packet as the LDPC code, and calculates information on a length in LDPC encoding, corresponding to the encoding of the multi-user data packet as the LDPC code. | 05-03-2012 |
| 20120163440 | APPARATUS AND METHOD FOR TUNABLE WIDEBAND SOLAR RADIO NOISE MEASUREMENT - An apparatus and method for tunable wideband solar radio noise measurement is provided. Accordingly, it is possible to directly measure the absolute flux of solar radio waves in a desired frequency band using a tunable receiver, and accordingly, to protect radio communication broadcasting systems located on the earth from its damage caused due to radio burst, noise and the like. | 06-28-2012 |
| 20130177096 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM - The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal. | 07-11-2013 |
| 20130188628 | METHOD AND APPARATUS OF SCANNING IN WIRELESS LOCAL AREA NETWORK SYSTEM - A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting by a station a probe request frame via a channel, and receiving by the station a probe response frame from a target access point (AP) to respond to the probe request frame. The probe request frame includes at least one of information regarding a response reception time and preference information regarding the target AP. | 07-25-2013 |
| 20130336250 | METHOD AND APPARATUS OF FRAME SCHEDULING IN WIRELESS LOCAL AREA NETWORK SYSTEM - A frame scheduling method performed by a wireless local area network (WLAN) terminal that transmits a frame in a WLAN system is provided. The method includes enqueuing a transmission target frame to a first stage queue corresponding to the transmission target frame among a plurality of first stage queues generated by recipient addresses and traffic identifiers (TIDs) of reception stations, dequeuing, by a first stage scheduler, a first frame from a queue selected from among the plurality of first stage queues and transmitting the same to one of a plurality of second stage queues, and transmitting, by a second stage scheduler, a second frame of a queue selected from among the plurality of second stage queues. | 12-19-2013 |
| 20130336251 | METHOD AND APPARATUS OF CHANNEL ACCESS IN WIRELESS LOCAL AREA NETWORK - A channel access method in WLAN system is provided. The method includes receiving packets transmitted from a higher protocol layer, classifying the packets to map the packets to ACs to which the packets correspond, transmitting the packets to queues corresponding to the ACs to which the packets are mapped, among a plurality of queues by ACs, independently applying a channel access function to each of the plurality of queues by ACs by avoiding a collision among the plurality of queues by ACs, transmitting a packet determined to be transmitted first, according to the application result of the channel access function. The packet includes a first frame to be transmitted to a first terminal and a second frame to be transmitted to a second terminal. The plurality of queues by ACs are queues with respect to the first frame to be transmitted to the first terminal. | 12-19-2013 |
| 20140269656 | MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (MU-MIMO) TRANSMISSION METHOD AND SYSTEM IN WIRELESS LOCAL AREA NETWORK (WLAN) - Provided is a data transmission method and system in a wireless local area network (WLAN) supporting a multi-user multiple-input and multiple-output (MU-MIMO), the method including determining a type of a first frame to be transmitted to at least one reception terminal, setting, based on a result of the determining, user identification (ID) information indicating an order of the at least one reception terminal, transmitting the first frame to the at least one reception terminal corresponding to the user ID information, receiving, from the at least one reception terminal, a second frame corresponding to the first frame, extracting, based on the received second frame, a beamforming parameter of the at least one reception terminal, and transmitting, to a physical (PHY) layer, the user ID information and the beamforming parameter corresponding to the at least one reception terminal. | 09-18-2014 |
| 20150016558 | UPLINK MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (UL MU-MIMO) TRANSMISSION REQUEST METHOD IN UL MU-MIMO COMMUNICATION - Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including transmitting, to each of a plurality of stations (STAs), an uplink multi-user request (UL MU request) frame requesting transmission of a data frame, and receiving, from each of the plurality of STAs, the data frame during an identical period of time based on an identical reception intensity, wherein the UL MU request frame includes at least one of information on a transmission time of the data frame and information on a reception intensity of the data frame in the AP. | 01-15-2015 |
| 20150117427 | DATA TRANSMISSION METHOD AND APPARATUS - Provided is a data transmission apparatus including a queue management unit to manage at least one queue in which information associated with at least one buffer descriptor (BD) is stored, a scheduler to estimate information to be transmitted among information associated with at least one media access control (MAC) protocol data unit (MPDU) using at least one transmission bitmap (Tx bitmap), a data transmitter to read the estimated information from information associated with a BD indicated in the at least one Tx bitmap, and transmit the read information to a physical layer, and a physical layer management unit to generate information associated with a presentation protocol data unit (PPDU) based on the transmitted information, and transmit the generated information over the air, wherein the at least one BD includes information associated with the at least one MPDU. | 04-30-2015 |
| 20150124776 | DATA TRANSMISSION METHOD AND APPARATUS IN NETWORK LINKED WITH HETEROGENEOUS SYSTEM - Provided is a data transmission method and apparatus for maximizing data transmission efficiency by transmitting data through a flexible network transition in a network linked with a heterogeneous system. | 05-07-2015 |
| 20150146598 | APPARATUS AND METHOD FOR PERFORMING VIRTUAL HIBERNATION DURING IDLE PERIOD IN WIRELESS LAN SYSTEM, AND TERMINAL DURING IDLE PERIOD OF WIRELESS LAN SYSTEM TERMINAL - Provided is technology for reducing power consumption of a terminal using hibernation of an access point (AP) managing a network in a wireless local area network (WLAN) environment, and an apparatus for performing hibernation during a rest time during which effective data traffic does not occur in a WLAN system according to an example embodiment, the apparatus may transmit a hibernation message indicating not to respond to a request of terminals during a predetermined period, determine a scheme of performing hibernation and whether to maintain an association between terminals associated before the hibernation is performed, and receive, after the predetermined period of the hibernation, effective data from the terminals. | 05-28-2015 |
| 20150208439 | APPARATUS AND METHOD FOR CHANNEL ACCESS - A channel access method and apparatus are disclosed. The channel access method by an access point (AP) having a sector antenna in a wireless local access network (WLAN), may include transmitting a sector beacon with respect to any one sector among a plurality of sectors, transmitting and receiving data with at least one station in any one sector during a pre-scheduled sector interval, sequentially performing transmission of the sector beacon and transmission and reception of the data with respect to remaining sectors of the plurality of sectors excluding the any one sector, transmitting an omni beacon with respect to all of the plurality of sectors, and transmitting and receiving data with respect to at least one station of the plurality of sectors during a pre-scheduled Basic Service Set (BSS) interval. | 07-23-2015 |
| 20150222339 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM - The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal. | 08-06-2015 |
| 20150245377 | METHOD AND APPARATUS FOR DISCOVERY OF SECTOR IN WIRELESS LOCAL AREA NETWORK SYSTEM - Provided is a sector discovery apparatus and method, the method including setting, by an AP in a WLAN system, an omni-beacon interval for transmitting an omnidirectional beacon and sector beacon intervals for transmitting a sector beacon with respect to one of a plurality of sectors which are spatially divided, transmitting the sector beacon to a current sector among the plurality of sectors, transmitting, to the current sector, a transmission frame indicating sectorized transmission or a transmission frame indicating omnidirectional transmission, in a sector interval between the sector beacon intervals, and receiving, from a terminal located in the current sector, a response frame indicating an association performed by receiving the transmission frame indicating the sectorized transmission. | 08-27-2015 |
| 20150288428 | PROTOCOL FOR COOPERATION COMMUNICATION BETWEEN ACCESS POINTS IN OVERLAPPED BASIC SERVICE SET (OBSS) ENVIRONMENT - Disclosed is a protocol for transmitting data through cooperation between access points in an overlapped basic service set (OBSS) environment. A cooperative beamforming communication method may include negotiating, by a first access point, a cooperative transmit beamforming with a second access point having an OBSS area with the first access point; transmitting, by the first access point, a clear-to-send (CTS) to the second access point; and performing, by the first access point, the cooperative transmit beamforming with the second access point during a cooperative transmit beamforming duration determined through the negotiation after a predetermined time interval is elapsed, when transmission of the CTS is completed. | 10-08-2015 |
| 20150289242 | METHOD AND DEVICE FOR ALLOCATING RESOURCE IN WIRELESS LAN SYSTEM, COMMUNICATION TERMINAL METHOD AND COMMUNICATION TERMINAL - Provided is a method and apparatus for allocating resources in a wireless local area network (WLAN) system, the method including determining a restricted access bandwidth (RAB) interval based on at least a bandwidth or a partial bandwidth among a plurality of bandwidths, and setting a restricted access window (RAW) of a time domain based on the RAB interval. | 10-08-2015 |
| 20150351125 | APPARATUS AND METHOD FOR ALLOCATING RESOURCE - Provided is an apparatus and method for allocating a resource. According to an embodiment of the present invention, the method of allocating a resource in which an access point allocates a resource for communication between a first station and a second station based on a slot-based channel access scheme in a wireless local area network, the method including confirming a wakeup schedule set between the first station and the second station, and allocating the resource for communication between the first station and the second station through the slot-based channel access scheme reflecting the confirmed WS. | 12-03-2015 |
| 20150358961 | COMMUNICATION APPARATUS AND DATA FRAME TRANSMISSION METHOD OF THE SAME - Provided is a data frame transmission method of a communication apparatus, the method including determining whether a transmission allowance condition of a data frame of the communication apparatus is satisfied when another communication apparatus occupies a channel, verifying an end time of another data frame transmitted by the other communication apparatus based on a result of the determining, and transmitting the data frame based on the verified end time. | 12-10-2015 |
| 20160043785 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM - The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal. | 02-11-2016 |
| 20160043787 | METHOD FOR TRANSMITTING FRAME USING SELECTIVE BEAMFORMING AND APPARATUS FOR PERFORMING THE METHOD - Disclosed are a frame transmission method using a selective beamforming and a communication apparatus to perform the frame transmission method. The communication apparatus may determine a beamforming matrix based on classification information in which a plurality of subcarriers used for communication is classified into a plurality of frequency units, may map a long training field (LTF) sequence to the beamforming matrix, and transmit a beamforming training (BF-T) frame including the mapped LTF sequence to a plurality of stations, may receive, from the plurality of stations having receiving the BF-T frame, feedback information generated based on a reception strength of the BF-T frame, and may allocate frequency units to data frames to be transmitted to the plurality of stations based on the feedback information, and transmit the data frames using the allocated frequency units. The reception strength of the BF-T frame may be determined at each station for each frequency unit. | 02-11-2016 |
| 20160044676 | OPERATION METHOD OF STATION IN WIRELESS LOCAL AREA NETWORK - Provided is an operation method of a station (STA) in a wireless local area network (WLAN). The operation method includes generating a legacy preamble, generating a high efficiency (HE) preamble including scheduling information for a plurality of receiving STAs, and generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the legacy preamble, the HE preamble, and a payload. | 02-11-2016 |
| 20160073433 | APPARATUS AND METHOD FOR CONTROLLING SLOT USAGE - Provided is slot use control apparatus and method, including an access point (AP) to control a slotted channel access of a station (STA) in a wireless local area network (WLAN) includes generating a synchronization (synch) frame including an identification value indicating an STA allocated to a slot, and broadcasting the generated synch frame when a channel is in an idle state at a start point of the slot. | 03-10-2016 |
| Patent application number | Description | Published |
|---|
| 20080200592 | Plasticizer composition containing cyclodextrin derivatives, flexible PVC composition with suppression of the migration of plasticizer containing the same, and manufacturing method thereof - The present invention relates to a plasticizer composition containing cyclodextrin derivatives, a flexible PVC composition with suppression of the migration of plasticizer containing this plasticizer composition, and a manufacturing method of the PVC composition. The manufacturing method includes the steps of: (S1) preparing a cyclodextrin derivative, in which hydrogens of a cyclodextrin are substituted with a certain compound; (S2) mixing the cyclodextrin derivative, PVC and a low molecular weight liquid plasticizer to form a plastisol; and (S3) heating the plastisol into liquid and cooling the plastisol. This manufacturing method uses cyclodextrin derivatives, in which cyclodextrins are modified with certain compounds, and these derivatives form a complex with the low molecular weight liquid plasticizer to suppress plasticizer migration. Thus, this method thereby allows mass-production of the flexible PVC with suppressed plasticizer migration in a simple and economical manner without using a solvent. | 08-21-2008 |
| 20100092376 | Manufacturing method of porous titanium dioxide using cyclodextrin - A method is provided for manufacturing porous titanium dioxide with uniform pore sizes within several nanometers by means of a template and a titanium precursor. In this method, a cyclodextrin or cyclodextrin derivative is used as a template for forming pores, and the cyclodextrin or then derivative reacts with the titanium precursor in a sulfuric acid solution. The manufacturing method according to the present invention allows the control of pore size and morphology using various kinds of cyclodextrin or cyclodextrin derivatives, supports a facile removal of the cyclodextrin used as the template, and is capable of manufacturing anatase type porous titanium dioxide with excellent photoactivity without a separate sintering process. | 04-15-2010 |
| 20130063529 | PRINTING SYSTEM, PRINTING APPARATUSES, AND METHODS OF FORMING NOZZLES OF PRINTING APPARATUSES - A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle. | 03-14-2013 |
| 20130164932 | METHODS OF FORMING WIRINGS IN ELECTRONIC DEVICES - A method of forming a wiring may include forming a first wire on a substrate; forming a material layer on the substrate, except on the first wire; forming a surface treatment film on the material layer; and forming a second wire on the first wire. The surface treatment film has physical properties opposite to the first wire. A method of forming a wiring may include forming a first wire on a substrate; forming a material layer on the substrate and the first wire; removing a portion of the material layer from the first wire; forming a surface treatment film on the material layer and the first wire; removing a portion of the surface treatment film from the first wire; and forming a second wire on the first wire. A thickness of the material layer on the substrate is greater than a thickness of the first wire on the substrate. | 06-27-2013 |
| 20130176354 | METHODS OF DRIVING HYBRID INKJET PRINTING APPARATUS - A method of driving a hybrid inkjet printing apparatus includes applying an electrostatic voltage to ink contained in a nozzle, applying a waveform voltage to ink contained in the nozzle, the waveform voltage being applied by a piezoelectric driving device, and applying an ejection voltage so as to eject the ink. | 07-11-2013 |
| 20150035911 | PRINTING SYSTEM, PRINTING APPARATUSES, AND METHODS OF FORMING NOZZLES OF PRINTING APPARATUSES - A printing apparatus includes: a flow channel plate including, a pressure chamber, a nozzle including an outlet through which ink contained in the pressure chamber is ejected, and a trench disposed around the nozzle, and the outlet extending into the trench; a piezoelectric actuator configured to provide a change in pressure to eject the ink contained in the pressure chamber; and an electrostatic actuator configured to provide an electrostatic driving force to the ink contained in the nozzle. | 02-05-2015 |
| 20150280207 | METHOD OF PREPARING GRAPHENE-GRAPHENE FUSED MATERIAL AND METHOD OF PREPARING GRAPHENE-SUBSTRATE COMPOSITE USING THE SAME - The present invention relates to a method of preparing a graphene-substrate composite using a graphene-graphene fused material. The method of preparing a graphene-substrate composite includes (a) forming a nano graphene-metal fused material comprised of nano-graphene and nano metal, (b) thermally treating the plurality of nano graphene-metal fused materials at a temperature higher than a melting point of the nano metal to connect the plurality of nano graphene-metal fused materials to each other by a melting bonding of the nano metal to form a graphene-graphene fused material, (c) pulverizing the graphene-graphene fused material to form a graphene-graphene fused material powder, and (d) dispersing the graphene-graphene fused material powder in a substrate to form a graphene-substrate composite. | 10-01-2015 |
| Patent application number | Description | Published |
|---|
| 20150014775 | SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME - Provided are a semiconductor device and a method of fabricating the semiconductor device. The semiconductor device includes a first source electrode configured to connect a first power rail to a first impurity region, the first power rail coupled to a first voltage source, a second source electrode configured to connect a second power rail to a second impurity region, the second power rail coupled to a second voltage source, the first and second voltage sources being different, a gate electrode on the first and second impurity regions, a first drain electrode on the first impurity region, a second drain electrode on the second impurity region and an interconnection line connected to the first drain electrode and the second drain electrode, the interconnection line forming at least one closed loop. | 01-15-2015 |
| 20150205901 | LAYOUT DESIGN SYSTEM FOR GENERATING LAYOUT DESIGN OF SEMICONDUCTOR DEVICE - According to example embodiments, a layout design system includes a processor, a storage module configured to store a standard cell design, and a generation module. The standard cell design includes an active area and a normal gate area on the active area. The generation module is configured to receive the standard cell design, to adjust a width of an active cut design crossing the active area of the standard cell design, and to output a chip design including a design element using the processor. The design element includes the active cut design having the width adjusted. | 07-23-2015 |
| 20150244366 | INTEGRATED CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING THE SAME - An integrated circuit (IC) includes at least one unit cell. The at least one unit cell includes a first bit circuit configured to process a first bit signal, a second bit circuit configured to process a second bit signal, a first well spaced apart from boundaries of the at least one unit cell and biased to a first voltage, and a second well biased to a second voltage that is different from the first voltage. Each of the first and second bit circuits includes at least one transistor from among a plurality of transistors disposed in the first well. | 08-27-2015 |
| 20160034627 | METHOD AND PROGRAM FOR DESIGNING INTEGRATED CIRCUIT - A method of designing an integrated circuit includes a processor receiving input data initially-defining the integrated circuit using a plurality of first standard cells designed to optimize a performance or yield characteristic. The processor substitutes at least one second standard cell designed to optimize a different performance or yield characteristic from that for which the first standard cells were optimized for a corresponding one of the first standard cells. The processor generates output data defining the integrated circuit including the second standard cell. The substituted second standard cell has the same function as the corresponding first standard cell for which it was substituted. | 02-04-2016 |
| 20160055285 | METHODS OF GENERATING INTEGRATED CIRCUIT LAYOUT USING STANDARD CELL LIBRARY - Methods of generating an integrated circuit layout include forming a standard cell by providing a first active area adjacent to a first cell boundary line. The first active area is spaced apart from the first cell boundary line by a first distance. A second active area is provided adjacent to a second cell boundary line. The second cell boundary line opposes the first cell boundary line. The second active area is spaced apart from the second cell boundary line by a second distance. Fins are formed on the first and second active areas. The fins extend in a first direction and parallel to one another in a second direction substantially perpendicular to the first direction. The first cell boundary line is parallel to the fins. The first distance and the second distance remain constant when a number of the fins on the first and second active areas is changed. | 02-25-2016 |
| 20160098509 | INTEGRATED CIRCUIT AND METHOD OF DESIGNING LAYOUT OF INTEGRATED CIRCUIT - A method of designing a layout of an integrated circuit (IC) includes placing a first cell in the layout, placing a second cell in the layout adjacent to the first cell at a first boundary between the first and second cells, and generating a plurality of commands executable by a processor to form a semiconductor device based on the layout. The first cell includes a first pattern and a second pattern. The first and second patterns are adjacent to the first boundary, the first and second patterns have different colors, and a first boundary space between the first pattern and the first boundary is different from a second boundary space between the second pattern and the first boundary. | 04-07-2016 |
| 20160105166 | BIDIRECTIONAL DELAY CIRCUIT AND INTEGRATED CIRCUIT INCLUDING THE SAME - A bidirectional delay circuit includes an input driving circuit and a delay switch circuit. The input driving circuit is connected between an input node and an intermediate node, and the input driving circuit amplifies an input signal received through the input node to generate an intermediate signal through the intermediate node. The delay switch circuit is connected between the intermediate node and a delay node, and the delay switch circuit delays both of rising edges and falling edges of the intermediate signal in response to a gate signal to generate a delay signal through the delay node. The gate signal may transition in response to the input signal. | 04-14-2016 |
