Patent application number | Description | Published |
20140360917 | METHOD OF PREPARING IRON CARBIDE/CARBON NANOCOMPOSITE CATALYST CONTAINING POTASSIUM FOR HIGH TEMPERATURE FISCHER-TROPSCH SYNTHESIS REACTION AND THE IRON CARBIDE/CARBON NANOCOMPOSITE CATALYST PREPARED THEREBY, AND METHOD OF MANUFACTURING LIQUID HYDROCARBON USING THE SAME AND LIQUID HYDROCARBON MANUFACTURED THEREBY - This invention relates to a method of preparing an iron carbide/carbon nanocomposite catalyst containing potassium for high temperature Fischer-Tropsch (FT) synthesis reaction and the iron carbide/carbon nanocomposite catalyst prepared thereby, and a method of manufacturing a liquid hydrocarbon using the same and a liquid hydrocarbon manufactured thereby, wherein a porous carbon support is uniformly impregnated with an iron hydrate using melt infiltration, and potassium is also supported together via various addition processes, including a pre-addition process of a potassium salt which is ground upon impregnation with the iron hydrate, or a mid- or post-addition process of a potassium solution using incipient wetness impregnation after impregnation with the iron hydrate. Accordingly, the highly active iron carbide/potassium/carbon composite catalyst for high temperature FT reaction in which 5˜30 wt % of active iron carbide particles are supported on the porous carbon support can be obtained and is structurally stable to heat even in high temperature FT reaction of 300° C. or more, and liquid hydrocarbons can be selectively obtained at high yields. | 12-11-2014 |
20150298114 | COMPOSITE BODY IN WHICH FIRST METAL-CONTAINING PARTICLES AND SECOND METAL-CONTAINING PARTICLES ARE SUPPORTED ON CARBON MATERIAL OR CONNECTED BY CARBON MATERIAL, AND METHOD FOR PRODUCING SAME - The present invention relates to a composite body in which first metal-containing particles and second metal-containing particles are supported on a carbon material or connected by a carbon material, and a method for producing the same. The above composite body can, if the first metal-containing particles exhibit a catalytic activity, be applied as a reaction catalyst and can also be used in various fields such as the manufacture of the adsorbent or the separation membrane. | 10-22-2015 |
20160083410 | METAL OXALATE HYDRATE BODY HAVING A CERTAIN SHAPE, PREPARATION METHOD THEREOF, AND METAL OXIDE/CARBON COMPOSITE BODY PREPARED FROM THE SAME - The present invention relates to a metal oxalate hydrate body having a certain shape, a preparation method thereof, and a metal oxide/carbon composite body prepared by using the metal oxalate hydrate body. In the present invention, the metal oxalate body, whose shape is diversely controlled, and the metal oxide/carbon composite body therefrom are provided. | 03-24-2016 |
20160096167 | METAL CARBIDE/CARBON COMPOSITE BODY HAVING POROUS STRUCTURE BY THREE-DIMENSIONAL CONNECTION OF CORE-SHELL UNIT PARTICLES, PREPARATION METHOD THEREOF, AND USE OF THE COMPOSITE BODY - The present invention relates to a metal carbide/carbon composite body having a porous structure, in which core-shell unit particles are three-dimensionally connected, a preparation method thereof, and the use of the composite body. More specifically, the present invention provides a metal carbide/carbon composite body, a preparation method thereof, and the use of the composite body, wherein the composite body is formed by high-temperature calcination of a metal oxalate hydrate body under a carbon monoxide-containing gas atmosphere, wherein the metal carbide/carbon composite body has a porous structure in which core-shell unit particles are three-dimensionally connected, wherein the core-shell unit particles comprise a metal carbide core formed by thermal decomposition of a metal oxalate hydrate; and a graphitic carbon shell, the product resulting from Boudouard reaction of carbon monoxide, formed on the metal carbide core. | 04-07-2016 |
Patent application number | Description | Published |
20090137073 | LIGHT EMITTING DIODE PACKAGE AND FABRICATION METHOD THEREOF - The present invention provides an LED package and the fabrication method thereof. The present invention provides an LED package including a submount silicon substrate and insulating film and electrode patterns formed on the submount silicon substrate. The LED package also includes a spacer having a through hole, formed on the electrode patterns. The LED package further includes an LED received in the through hole, flip-chip bonded to the electrode patterns, and an optical element attached to the upper surface of the spacer. | 05-28-2009 |
20120138081 | ELECTRIC CURLING IRON - Disclosed therein is an electric curling iron. The electric curling iron includes: a body part; a heating rod arranged at a side of the body part and having a heat ray heater disposed therein; an upper handle and a lower handle hinge-coupled on a hinge shaft formed at the other side of the body part, the upper and lower handles being movable in a tong shape; and an upper pressing member and a lower pressing member whose end portions are respectively overlapped and hinge-coupled to front ends of the inner faces of the upper and lower handles, the upper and lower pressing members respectively having a shape corresponding to the outer circumferential surface of the heating rod, wherein the upper and lower pressing members are opened wider than the upper and lower handles, so that a user can rapidly and convenient do hair styling. | 06-07-2012 |
20130340474 | FUEL SUPPLY METHOD FOR HIGH-PRESSURE NATURAL GAS INJECTION ENGINE - Provided is a fuel supply method for a marine structure using a high-pressure natural gas injection engine. BOG stored in a stored in the storage tank is compressed to a pressure of 12 to 45 bara (absolute pressure) and then reliquefied. A reliquefaction apparatus includes a cold box configured to exchange heat between a refrigerant and the BOG, a compression unit configured to compress the refrigerant heated by the cold box, an expansion unit configured to expand the compressed refrigerant to drop the temperature thereof, and a plurality of gas-liquid refrigerant separators configured to separate the refrigerant into a gaseous refrigerant and a liquid refrigerant. A gaseous refrigerant and a liquid refrigerant separated by the gas-liquid refrigerant separator disposed at an upstream side are again mixed and supplied to the gas-liquid refrigerant separator disposed at the most downstream among the plurality of gas-liquid refrigerant separators. | 12-26-2013 |
20140069118 | METHOD AND SYSTEM FOR SUPPLYING FUEL TO HIGH-PRESSURE NATURAL GAS INJECTION ENGINE - Provided is a fuel supply system for a marine structure using a high-pressure natural gas injection engine. The fuel supply system includes: a boil-off gas (BOG) compression unit configured to receive and compress BOG generated in a storage tank storing a liquefied gas; a reliquefaction apparatus configured to receive and liquefy the BOG compressed by the BOG compression unit; a buffer tank configured to receive the liquefied BOG from the reliquefaction apparatus and separate the reliquefied BOG into a gaseous component and a liquid component; a high-pressure pump configured to receive the liquid component from the buffer tank and compress the liquid component; and a high-pressure gasifier configured to gasify the liquid component compressed by the high-pressure pump and supply the gasified liquid component to the high-pressure natural gas injection engine. | 03-13-2014 |
20140075943 | METHOD FOR OPERATING FUEL SUPPLY SYSTEM FOR MARINE STRUCTURE HAVING RELIQUEFACTION APPARATUS AND HIGH-PRESSURE NATURAL GAS INJECTION ENGINE - Provided is a method for operating a fuel supply system for a marine structure. The fuel supply system includes a BOG compression unit configured to receive and compress BOG generated in a storage tank, a reliquefaction apparatus configured to receive and liquefy the BOG compressed by the BOG compression unit, a high-pressure pump configured to compress the liquefied BOG generated by the reliquefaction apparatus, and a high-pressure gasifier configured to gasify the liquefied BOG compressed by the high-pressure pump. The fuel supply system includes a recondenser installed at an upstream side of the high-pressure pump, and the recondenser recondenses a portion or all of the generated BOG by using liquefied gas supplied from the storage tank. During a ballast voyage process, all of the BOG is supplied to and recondensed by the recondenser, and an operation of the reliquefaction apparatus is interrupted. | 03-20-2014 |
Patent application number | Description | Published |
20130036818 | INERTIAL SENSOR AND METHOD OF MANUFACTURING THE SAME - Disclosed herein are an inertial sensor and a method of manufacturing the same. The inertial sensor | 02-14-2013 |
20130081464 | INERTIAL SENSOR - Disclosed herein is an inertial sensor. The inertial sensor includes a sensor part including a driving mass, a flexible substrate part displaceably supporting the driving mass, and a support part supporting the flexible substrate part so that the driving mass is freely movable in a state in which the driving mass is floated; a lower cap covering a lower portion of the driving mass and coupled with the support part and provided with a stopper part limiting a displacement of the driving mass; and a dry film resist coupling the sensor part with the cover and providing an interval between the driving mass and the stopper. | 04-04-2013 |
20130133426 | INERTIAL SENSOR - Disclosed herein is an inertial sensor including: a membrane; a mass body provided under the membrane; a plurality of patterned magnets provided under the mass body; and a magnetoresistive element provided to be spaced apart from the mass body and measuring static DC acceleration acting on the mass body through resistance changed according to magnetic fields of the plurality of patterned magnets. The plurality of patterned magnets and the magnetoresistive element are included, thereby making it possible to measure static DC acceleration (particularly, gravity acceleration) that is difficult to measure using an existing to piezoelectric element. | 05-30-2013 |
20130167634 | INERTIAL SENSOR - Disclosed herein is an inertial sensor. The inertial sensor | 07-04-2013 |
20130167640 | INERTIAL SENSOR AND METHOD OF MANUFACTURING THE SAME - Disclosed is an inertial sensor, including a membrane, a mass body provided underneath a central portion of the membrane, a post provided underneath a peripheral portion of the membrane, and a cap having a peripheral portion bonded to a lower surface of the post using low-temperature silicon direct bonding. A method of manufacturing the inertial sensor is also provided. | 07-04-2013 |
20130169113 | INERTIAL SENSOR AND METHOD OF MANUFACTURING THE SAME - Disclosed herein are an inertial sensor and a method of manufacturing the same. The inertial sensor | 07-04-2013 |
20130220015 | INERTIAL SENSOR - Disclosed herein is an inertial sensor including: a membrane; first and second driving units provided in a first axis direction (an X axis direction) so as to be symmetrical to each other based on a predetermined point of the membrane to thereby vibrate while being expanded and contracted in the first axis direction; and third and fourth driving units provided in a second axis direction (a Y axis direction) perpendicular to the first axis direction so as to be symmetrical to each other based on a predetermined point of the membrane to thereby vibrate while being expanded and contracted in the second axis direction, wherein the first and second driving units have different vibration frequencies so that they vibrate while being expanded and contracted in the opposite manner and then vibrate while being expanded and contracted in the same manner. | 08-29-2013 |
Patent application number | Description | Published |
20140217829 | FERRITE CORE STRUCTURE FOR A POWER SUPPLY DEVICE OF AN ELECTRIC VEHICLE AND POWER SUPPLY ROAD STRUCTURE USING SAME - The present invention relates to a ferrite core structure for a power supply device of an electric vehicle which changes the structure of a ferrite core module according to a related art to improve output and limits a reduction in strength due to warpage in a traveling direction of the vehicle to prevent cracks generated in a surface of an intermediate portion of a power supply road from occurring. For this, the ferrite core structure for a power supply device of the electric vehicle includes: a plurality of horizontal core parts arranged spaced apart from each other to prevent a magnetic flux from leaking into the ground; a plurality of first vertical core parts extending upward from both ends of the horizontal core parts to prevent the magnetic flux from leaking into an outer surface; a second vertical core part having at least two rows extending upward from an intermediate portion of each of the horizontal core parts, the second vertical core part being arranged in a direction parallel to the first vertical core parts; and a first support part connecting the plurality of first vertical core parts to each other to support the first vertical core parts. | 08-07-2014 |
20140217830 | FEED APPARATUS, CURRENT COLLECTOR, AND POWER TRANSFER APPARATUS OF THE MAGNETIC INDUCTION TYPE, CONSIDERING LATERAL DEVIATION - An embodiment of the present invention relates to a feed apparatus, a current collector, and a power transfer apparatus of the magnetic induction type, considering lateral deviation. An embodiment of the present invention relates to a power transfer apparatus comprising a feed apparatus and a current collector wherein the feed apparatus includes: a feed main unit having a predetermined width and length; a feed core forming a feed projection unit projected in the same direction and being perpendicular to both the width direction and the length direction at the left end and the right end of the width direction, with respect to a cutting side of the feed main unit in the width direction; and a pair of feed lines coiled respectively at the left end and the right end of the feed main unit in a length direction of the feed core adjacent to the feed projection unit, and the current collector includes: a current collection main unit having a predetermined width and length; a current collection core having a current collection projection unit projected in the same direction and being perpendicular to both the width direction and the length direction at a left end and a right end of a width direction, with respect to a cutting side of the current collection main unit in the width direction, and equipped with an extension unit extended toward each width direction in the current collection projection unit; and a current collection line coiled respectively at the left side and the right side of the current collection projection unit of the current collection core. | 08-07-2014 |
20140265628 | FEED LINE-COMPENSATED POWER TRANSMISSION APPARATUS - One embodiment of the present invention discloses a feed line-compensated power transmission apparatus. One embodiment of the present invention, comprises: a feed line provided with horizontally elongated first and second lines and a third line for connecting one end of the first line to one end of the second line; a pair of compensation capacitors which are placed to face each other by connecting one end of the compensation capacitor to the other end of the first line and one end of the other compensation capacitor to the other end of the second line; an input power source for applying a high frequency power source by connecting both ends of the input power source to the other ends of the pair of compensation capacitors, respectively. | 09-18-2014 |
20150035481 | NON-CONTACT POWER TRANSMISSION DEVICE, MAGNETIC INDUCTION-TYPE POWER SUPPLY DEVICE, MAGNETIC INDUCTION-TYPE POWER COLLECTOR, AND MOVING OBJECT USING SAME - Embodiments of the present invention relate to a non-contact power transmission device, a magnetic induction-type power supply device, a magnetic induction-type power collector, and a moving object using same. Embodiments of the present invention provide a non-contact power transmission device, a magnetic induction-type power supply device, a magnetic induction-type power collector, and a moving object using same, the non-contact power transmission device comprising: a power collector having a power collector core, and a boob power collector cable that winds around the power collector core; and a power supply unit comprising a power supply core having a holder section and protrusions on the center portion of the holder section and around the perimeter of the holder section, and a power supply cable wound in such a manner that electric currents flow in two different directions with respect to the protruding center portion, wherein the power collector is located in the opposite direction from the protruding portion. | 02-05-2015 |
Patent application number | Description | Published |
20110150139 | CALIBRATION METHOD FOR Tx/Rx PATH CHARACTERISTIC OF CHANNEL SOUNDER - The method includes performing a wired back-to-back test by forming M wired paths connecting one of the N transmission antennas with the M reception antennas through M cables, separating i | 06-23-2011 |
20120161864 | AMPLIFIER STRUCTURE AND AMPLIFICATION METHOD THEREOF - Provided is an amplifier structure. The amplifier structure includes a delta-sigma modulator, an up converter, a power amplifier, and a band-pass filter. The delta-sigma modulator receives an IF signal to delta-sigma modulate the IF signal. The up converter up-converts a frequency of the delta-sigma modulated signal with an LO signal. The power amplifier amplifies a power of the up-converted signal. The band-pass filter filters the amplified signal of a selected band. The amplifier structure performs the delta-sigma modulation operation on an IF input signal, and thus can considerably decrease a delta-sigma modulation operation speed compared to a typical amplifier structure and moderate the specification in implementing a power amplifier. | 06-28-2012 |
20120263257 | SIGNAL AMPLIFYING APPARATUS, WIRELESS TRANSMITTING APPARATUS, AND SIGNAL AMPLIFYING METHOD - A signal amplifying apparatus, a wireless transmitting apparatus, and a signal amplifying method are provided. The signal amplifying apparatus modulates an envelope signal using a multi-bit quantizer, thereby increasing coding efficiency and tracking optimal supply voltage with respect to envelope variation due to the use of the multi-bit quantizer. | 10-18-2012 |
20130142236 | METHOD OF MEASURING ERROR VECTOR MAGNITUDE - A method of checking an error vector magnitude of transmitter in accordance with some embodiments of the inventive concept may include dividing a transmission baseband signal which the transmitter transmits into a plurality of processing units; performing a transmitter function and an ideal receiver function with respect to each of the plurality of processing units; generating a reception baseband signal by recombining a processing result of each of the plurality of processing units; and calculating an error vector magnitude (EVM) by comparing the transmission baseband signal with the reception baseband signal. | 06-06-2013 |
20140064355 | DELTA-SIGMA MODULATOR AND TRANSMITTER INCLUDING THE SAME - A delta-sigma modulator and a transmitter apparatus including the same are disclosed. The delta-sigma modulator includes a first integrator, a second integrator, a first comparator configured to compare an output signal of the second integrator and a reference signal, and output a first comparison signal, a second comparator configured to compare the output signal of the second integrator and the reference signal, and output a second comparison signal, a first DAC configured to output the first signal corresponding to the first comparison signal and the second comparison signal, a second DAC configured to output the second signal corresponding to the first comparison signal and the second comparison signal, a delayer configured to generate a delayed signal that delays the first comparison signal and the second comparison signal by a predetermined time, and an output DAC configured to generate an output signal having a multi-level corresponding to the delayed signal. | 03-06-2014 |
20140307825 | DIGITAL POLAR MODULATOR FOR A SWITCH MODE RF POWER AMPLIFIER - A digital polar modulator (DPM) for transforming a baseband signal into a modulated digital modulator output signal comprises an input unit and two low-pass delta-sigma modulators, a first one being connected downstream from the first input part and configured to provide at its output a first pulse train in dependence on an amplitude- modulating baseband signal component, and a second one being connected downstream from the second input part and configured to provide at its output a multilevel quantized signal in dependence on a phase modulating baseband signal component; a multiphase generator, which is configured to provide a set of square-wave carrier signals having a common carrier frequency and exhibiting discrete phase shifts with respect to each other; a multiplexer, which is configured to provide a multiplexer output signal that is formed by switching, in dependence on a signal received at a select input as a function of time, between selected ones of the carrier signals; and a combiner unit. | 10-16-2014 |
20140308042 | UNDERWATER COMMUNICATION DEVICE USING VISIBLE LIGHT AND UNDERWATER COMMUNICATION METHOD USING THE SAME - Provided are an underwater communication device using visible light and an underwater communication method using the same. The underwater communication device using visible light, includes: an input unit converting a data signal received from the outside under water into an electrical signal; a transmitting unit converting the electrical signal into a visible light signal and emitting the visible light signal under water; a receiving unit recognizing the visible light signal under water and converting the visible light signal into the electrical signal; and an output unit converting the electrical signal into a data signal and outputting the data signal under water. Therefore, it is possible to provide an underwater communication device that may be implemented at low cost, perform wide band communication, and have excellent security. | 10-16-2014 |
20150017932 | SIGNAL AMPLIFICATION APPARATUS AND METHOD - A signal amplification apparatus includes a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period and a second period, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal. Further, the signal amplification apparatus includes a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator to output the amplified signal. | 01-15-2015 |
20150071371 | METHOD OF GENERATING DRIVING SIGNAL FOR DRIVING DUAL MODE SUPPLY MODULATOR FOR POWER AMPLIFIER AND DEVICE THEREOF - Provided is a method of generating a driving signal for driving a dual mode supply modulator for a power amplifier. The method includes obtaining an envelope of a complex baseband signal to be transmitted, comparing the envelope of the complex signal with a preset threshold value, when a current envelope of the complex signal is the preset threshold value or greater or when there is a result having the preset threshold value or greater in previous N comparisons, outputting a digital board output signal configured with a first logic level through a digital-to-analog converter; and when the current envelope of the complex signal is smaller than the preset threshold value and when there is no result having the preset threshold value or greater in the previous N comparisons, outputting a digital board output signal configured with a second logic level through the digital-to-analog converter. | 03-12-2015 |
20150078500 | METHOD OF CORRECTING TIME MISALIGNMENT BETWEEN ENVELOPE AND PHASE COMPONENTS - Provided is a method of correcting a time misalignment between envelope and phase components in a transmitting apparatus which separates envelope and phase components of a signal, processes them, and then recombines them to transmit the recombined signal. For this, in a method of correcting a time misalignment between envelope and phase components according to an embodiment of the present invention, a time misalignment is corrected by applying a time delay to at least one of envelope and phase components in digital and analog signal processing operations, or applying a time delay to an envelope or phase component by a pre-processing operation. | 03-19-2015 |
20150215147 | SIGNAL TRANSMISSION DEVICE ADJUSTING ELECTRICAL CHARACTERISTIC VALUE CORRESPONDING TO LOGIC LEVEL AND SIGNAL TRANSMITTING METHOD THEREOF - Provided is a signal transmission device including a first modulation unit generating a first modulated signal having at least three logic levels by modulating an input signal; a characteristic adjustment unit generating an adjusted first modulated signal by adjusting the at least one of electrical characteristic values based on an adjustment signal; a second modulation unit generating a second modulated signal by modulating the adjusted first modulated signal; and an adjustment operation unit generating the adjustment signal based on electrical characteristic values respectively corresponding to the at least three logic levels of the first modulated signal and corresponding to at least three logic levels of the second modulated signal. Linearity of the modulated signal generated by the provided signal transmission device is enhanced. | 07-30-2015 |
20150229495 | APPARATUS AND METHOD FOR GENERATING DIFFERENTIAL SIGNAL, AND TRANSMISSION APPARATUS AND METHOD HAVING THE SAME - Disclosed is a technique for a transmission apparatus. A method of generating a differential signal includes adding a predetermined offset to an envelope signal to generate a first signal having the same magnitude as the envelope signal with respect to 0, scaling the first signal at a predetermined rate to generate a second signal, changing a sign of the second signal to generate a third signal that is an inverted signal of the second signal, and forming a differential signal using the second signal and the third signal. | 08-13-2015 |
Patent application number | Description | Published |
20120100820 | METHOD FOR MEASURING VARIABLE BANDWIDTH WIRELESS CHANNEL AND TRANSMITTER AND RECEIVER THEREFOR - Provided are a method for measuring a variable bandwidth wireless channel, and a transmitter and a receiver therefor. The transmitter, includes: a pre-processing unit for performing variable over-sampling and band-limited filtering on an original sequence for measuring the wireless channel according to a pre-determined digital-to-analog (D/A) operation speed and measurement bandwidth, and creating and storing a probing sequence whose frequency is up-converted into a fixed transmitting intermediate frequency; and a real-time processing unit for transmitting a probing signal that the stored probing sequence is converted according to the D/A operation speed to the wireless channel. | 04-26-2012 |
20150114119 | ACCELERATION SENSOR - Embodiments of the invention provide an acceleration sensor, including a mass body part including a first mass body and a second mass body, flexible beams coupled with the first mass body, and a support part including first support parts, which are connected to the flexible beams and are disposed to face the second mass body, and second support parts, which are coupled with the first support parts. The mass body part, the flexible beams, and the support parts are configured of a first substrate and a second substrate coupled with each other so as to be stacked, and when the mass body part is excessively displaced, the second mass body contacts the first support parts to limit the displacement of the mass body part. | 04-30-2015 |
20150185010 | ACCELERATION SENSOR - Embodiments of the invention provide an acceleration sensor including a mass body, flexible beams coupled to the mass body, a supporting part having the flexible beams connected thereto and supporting the mass body so as to be floatable, and a lower cover coupled to the supporting part to cover the mass body, wherein the lower cover is provided with a buffering beam part so as to be opposite to the mass body. | 07-02-2015 |
20150241215 | MICRO ELECTRO MECHANICAL SYSTEMS SENSOR - Embodiments of the invention provide a MEMS sensor, including a mass body, a flexible beam coupled with the mass body, and a support part coupled with the flexible beam and floatably supporting the mass body. According to at least one embodiment, the flexible beam is provided with a sensing device configured to detect a physical amount depending on a displacement of the mass body, and a connection part between the flexible beam and the support part is provided with a reinforcement part to relax stress concentration in response to rigidity reinforcement. | 08-27-2015 |
20150282013 | APPARATUS AND METHOD FOR COMMUNICATING VOICE DATA IN A WIRELESS NETWORK - An apparatus that uses a method for processing handover by a terminal linked to a wireless network included in heterogeneous wireless networks and conducting a voice call service is provided. The method includes determining whether the terminal is required to perform handover of another wireless network included in the heterogeneous wireless networks, and upon determining that the handover is required, performing handover to the another wireless network, wherein the handover is determined by applying at least one handover condition to each of predetermined operation modes in the terminal conducting the voice call service. | 10-01-2015 |
20150365996 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING DATA TRANSMISSION AND RECEPTION WHEN MAKING VOICE CALL - Methods and devices are provided in which a voice call is made during data transmission and reception to and from an external electronic device. It is determined whether a communication status is sufficient to perform the data transmission and reception while making the voice call. The data transmission and reception is stopped if it is determined that the communication status is not sufficient to perform the data transmission and reception while making the voice call. | 12-17-2015 |
20160065139 | METHOD AND APPARATUS FOR SUPPLYING POWER TO A RADIO FREQUENCY POWER AMPLIFIER - A method and a supply modulator (SM) are provided for supplying power from a wireless transmitter to a radio frequency (RF) power amplifier. A power control signal input from a modem is received. A reference voltage is determined. An operating mode of the SM is changed by controlling a level of the reference voltage. A voltage is determined based on the level of a reference voltage. When the operating mode of the SM is an ET mode, a first output signal from a linear regulator and a second output signal from a switching regulator are combined to obtain a combined result, and the combined result is output. The first output signal is based on the voltage. When the operating mode of the SM is an APT mode, the voltage based on the reference voltage is output. | 03-03-2016 |
20160065142 | PARALLEL COMBINED OUTPUT LINEAR AMPLIFIER AND OPERATING METHOD THEREOF - A parallel output linear amplifier is provided that includes a transconductance amplifier configured to receive an analog input signal from an input terminal and amplify the analog input signal. The parallel output linear amplifier also includes a first pre-amplifier connected to the transconductance amplifier and operated using a floating drive voltage, and a cascode class AB amplifier connected to the first pre-amplifier and configured to provide an amplified signal to an output terminal. The parallel output linear amplifier further includes a second pre-amplifier configured connected to the transconductance amplifier and operated using the floating drive voltage, and a cascade class AB amplifier connected to the second pre-amplifier and configured to provide an amplified signal to the output terminal. | 03-03-2016 |
Patent application number | Description | Published |
20080305810 | METHOD AND APPARATUS FOR PROVIDING A SERVICE USING LOCATION INFORMATION IN A MOBILE COMMUNICATION TERMINAL - A method and apparatus for providing a service using location information in a mobile communication terminal are provided. The method includes identifying service area information and operation information allocated to each corresponding area information from a Subscriber Identification Mobile (SIM) card, transmitting operation information allocated to area information representing a current location of the terminal to a service provider server, and receiving a service corresponding to the operation information from the service provider server. | 12-11-2008 |
20100325191 | MANAGEMENT SERVER AND METHOD FOR PROVIDING CLOUD COMPUTING SERVICE - A management server and method for providing a cloud computing service at high speed and reasonable cost, are provided. The management server provides a virtual machine to a client as a computing resource. The virtual machine is multiplexed by operating multiple virtual devices on a single virtual machine. Accordingly, demand for computing resources may be predicted in advance and may be provided to a user more efficiently. | 12-23-2010 |
20110250867 | METHOD AND APPARATUS FOR RESTRICTING NETWORK ACCESS IN A MOBILE COMMUNICATION TERMINAL - A method and an apparatus for restricting network access in a mobile communication terminal are provided. The method for restricting the network access in the mobile communication terminal includes when network access is attempted, receiving a password for a Subscriber Identification Module (SIM) card inserted into the terminal, transmitting the password to a SIM management server, receiving a password authentication result from the SIM management server, and determining whether to allow the network access according to the password authentication result. | 10-13-2011 |
20140300390 | METHOD FOR SYNTHESIZING FREQUENCY AND ELECTRONIC DEVICE THEREOF - An electronic device for synthesizing a frequency is provided. The electronic device includes a bank changer configured to output a channel code corresponding to a reference frequency signal and a feedback frequency signal, a channel code mapper configured to generate a changed channel code by applying an offset to the channel code output from the bank changer, and a voltage controlled oscillator configured to control a total capacitance of a plurality of capacitors based on the changed channel code and to oscillate a frequency dependent on the total capacitance. | 10-09-2014 |
20150059477 | ACCELERATION SENSOR - Disclosed herein is an acceleration sensor including: a mass; a flexible beam on which an electrode or a piezoresistive element is disposed and the mass is coupled; and a support part connecting to and supporting the flexible beam and having therein a stress isolating slit facing the mass, wherein the mass, the flexible beam and the support part are formed by coupling first and second substrates, wherein the first substrate has a first masking pattern formed thereon corresponding to the flexible beam, the mass and the support part and the second substrate has a second masking pattern formed thereon corresponding to the mass and the support part. | 03-05-2015 |
20150130514 | APPARATUS AND METHOD FOR COMPENSATING FOR PROCESS VARIATION IN ELECTRONIC DEVICE - An electronic device for compensating for process variation is provided. The electronic device includes a first circuit configured to consume a current supplied to the first circuit, and a second circuit configured to control the current supplied to the first circuit. The second circuit is configured to generate a signal for controlling the current supplied to the circuit based on a frequency of a pulse signal generated using a second component that is of a same kind as a first component of the first circuit. | 05-14-2015 |
20150135834 | MICRO ELECTRO MECHANICAL SYSTEMS SENSOR - There is provided a MEMS sensor including: a mass body; a support part floatably supporting the mass body; and a flexible beam having one end connected to the mass body and the other end connected to the support part. At least one end of the flexible beam connected to the mass body or the support part includes a curved portion to maximize an effective length supporting a load. | 05-21-2015 |
Patent application number | Description | Published |
20100196814 | TONER USABLE WITH ELECTROPHOTOGRAPHY AND METHOD OF PREPARING THE SAME - A toner usable with electrophotography includes an iron (Fe) content in the toner is in a range of about 1.0×10 | 08-05-2010 |
20130025503 | ANTI-FINGERPRINT COATING COMPOSITION AND FILM USING THE SAME - Disclosed herein is an anti-fingerprint coating composition, a coating composition for forming thin films that prevents fingerprints adhered to displays or touch panels from being remarkably visible and exhibits superior durability and slip properties, and a method for preparing the same. | 01-31-2013 |
20130183061 | IMAGE FORMING APPARATUS - An image forming apparatus includes a developing module which develops a toner image on a printing medium, a fixing module which fixes the toner image onto the printing medium, and a toner neutralization module arranged on a travel path of the printing medium between the developing module and the fixing module to electrically neutralize the toner image on the printing medium. | 07-18-2013 |
20140193171 | FIXING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A fixing unit includes: a fixing member which defines a fixing nip, where the fixing member fixes a toner image transferred onto a recording medium by applying heat and pressure to the toner image on the recording medium, and the recording medium passes through the fixing nip; a housing in which the fixing member is disposed, where the housing includes an entrance part, via which the recording medium enters therein, and a discharge part, via which the recording medium is discharged therefrom; and a blocking part disposed on the housing and toward an image surface of the recording medium to which the toner image is transferred, where the blocking part blocks nanodusts, which are generated while the toner image is being fixed to the recording medium, from being discharged to an outside of the housing. | 07-10-2014 |
20160092391 | INTERFACE APPARATUS, VEHICLE HAVING THE SAME, AND METHOD OF CONTROLLING THE SAME - An interface apparatus of communicating with a multimedia player includes a slot part into which a card type memory is inserted; a hub part connected to the slot part, and configured to switch a communication line of the card type memory to a USB communication line; a port part to which an external device allowing USB communications is connected; a first connector connected to the hub part, and configured to transmit data stored in the card type memory to the multimedia player; and a second connector connected to the port part, and configured to transmit data stored in the external device to the multimedia player. Since a slot part for card type memory, a USB port, and an AUX terminal are arranged together, it is possible to improve the commercial value and design of the multimedia player. | 03-31-2016 |
Patent application number | Description | Published |
20100103897 | APPARATUS AND METHOD FOR ALLOCATING RESOURCE IN A WIRELESS COMMUNICATION SYSTEM USING OFDMA - An apparatus for allocating a resource in a wireless communication system using an orthogonal frequency division multiple access (OFDMA) scheme includes an analysis unit to analyze a signal received from a terminal over a channel to determine characteristics of the channel; an allocation unit to allocate a first frequency band to the terminal based on the characteristics of the channel; and a frequency hopping unit to perform frequency hopping from the first frequency band to a second frequency band after a first time period. A method for allocating the resource in an OFDMA wireless communication system includes analyzing a signal received from a terminal over a channel to determine characteristics of the channel, allocating a first frequency band to the terminal based on the characteristics of the channel, and performing frequency hopping from the first frequency band to a second frequency band after the first time period. | 04-29-2010 |
20100135493 | METHOD AND APPARATUS FOR GENERATING PSEUDO RANDOM SEQUENCE IN BROADBAND WIRELESS COMMUNICATION SYSTEM - Provided are a method and an apparatus for generating pseudo random sequence to generate pseudo random sequences which have larger sizes and are different from each other in a wireless communication system; a method for generating pseudo random sequence in a wireless communication system, comprising generating a first output sequence, generating a second output sequence, and generating a third output sequence; and an apparatus to generate pseudo random sequence in a wireless communication system, comprising a first linear feedback shift register (LFSR), a second LSFR, and a third LFSR, a first initial value mapper, a second initial value mapper, a third initial value mapper, and an N delay operator. | 06-03-2010 |
20100232536 | PRECODING APPARATUS FOR MULTI-USER, MULTI-ANTENNA, WIRELESS TRANSMISSION SYSTEM - A multi-antenna wireless transmission apparatus for multiple receiving terminals includes a channel characteristic acquiring unit to acquire characteristic parameters of a wireless transmission channel between a transmitting party antenna and a receiving party antenna, a coefficient calculator to use the characteristic parameters of the wireless transmission channel to calculate coefficients configured such that the transmitting party sets a ratio of received power for a transmission signal at the receiving party to intensity of interference and noise of the transmission signal, and a precoder to multiply an input signal by a matrix whose elements are the coefficients calculated by the coefficient calculator and to output an output signal. The output signal is to be transmitted from the transmitting party antenna to the receiving party antenna. | 09-16-2010 |
20100232537 | APPARATUS FOR TRANSMISSION THROUGH MULTIPLE ANTENNAS - A space-time coding apparatus receives two groups of inputs and outputs two groups of outputs. A configuration of each output group is based on spatial diversity and a configuration between the groups of outputs is based on spatial multiplexing. The space-time coding apparatus may include two spatial diversity coders whose outputs are each connected two spatial multiplexing coders. A plurality of antennas may be respectively connected to outputs of each spatial multiplexing coder. Coding coefficients are configured so that a first wireless receiving terminal corresponding to a first group of outputs receives only input signal components of a first group of inputs, and a second wireless receiving terminal corresponding to a second group of outputs receives only input signal components of a second group of inputs. | 09-16-2010 |
20110274193 | APPARATUS AND METHOD FOR GENERATING SCRAMBLING CODES IN A RADIO COMMUNICATION SYSTEM - An apparatus and method for generating a scrambling code in a radio communication system is disclosed. In particular, an apparatus and method for generating a scrambling code using a Gold-like sequence even when m is a multiple of 4 for a length 2 | 11-10-2011 |
20120009913 | FEMTOCELL ACCESS NODE, FEMTOCELL SYSTEM, AND DATA TRANSMISSION METHOD FOR THE SYSTEM - A femto cell connection node, a femto cell system, and a data transmission method of the system are disclosed. | 01-12-2012 |
20120320853 | METHOD FOR TRANSMITTING DATA AND CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM, A SENDING DEVICE THEREFOR AND A RECEIVING DEVICE THEREFOR - A method and device for sending and receiving control information and data between a terminal and an eNB in a wireless communication system are disclosed, and a method and device for sending and receiving control information and data in accordance with hybrid automatic repeat technology are disclosed. A multiplexer outputs a plurality of hybrid repeat (HARQ) blocks that store data blocks to be transmitted via a plurality of component carrier waves, and outputs multiplexed data obtained by the multiplexing of the data blocks. Repeat data is transmitted by using a component carrier wave that differs from the component carrier wave used during the initial transmission, thereby obtaining gain of diverse channel states for predetermined component carrier waves and frequency bands, and so improving HARQ performance. | 12-20-2012 |
20130155915 | USER EQUIPMENT, PDSCH A/N TRANSMITTING METHOD THEREOF, TRANSMISSION/RECEPTION POINT, AND PDSCH A/N RECEIVING METHOD THEREOF - The present invention relates to a system that includes a transmission/reception point and a user equipment having different configurations in inter-band and performs a TDD (Time Division Duplex) method. | 06-20-2013 |
20130301452 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for transmitting and receiving a reference signal in a wireless communication system. In the method, in order to dynamically switch an uplink (UL) Demodulation-Reference Signal (DM-RS) according to the communication environment, such as CoMP and MU-MIMO, a parameter set for generation of a reference signal sequence is configured to include a Virtual Cell Identifier (VCID) parameter configured by information of a total of 9 bits and a cyclic shift hopping initial value parameter c | 11-14-2013 |
20140185573 | METHOD AND APPARATUS FOR TRANSMITTING A REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - Provided is a method and apparatus for transmitting a reference signal by a base station in a multi-cell cooperative communication environment. The method for transmitting the reference signal according to the present invention comprises the steps of: transmitting cell ID information of a second cell to a terminal which uses a first cell as a serving cell; generating reference signal sequences in the first cell and the second cell on the basis of the same cell ID; and performing resource element mapping on each of the generated reference signals, generating signals, and transmitting the signals to the terminal, wherein the same cell ID used in generating the reference signal sequences is a cell ID of the first cell or a cell ID of the second cell. | 07-03-2014 |
20140293943 | METHOD AND APPARATUS FOR TRANSMITTING A REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention is related to a method and an apparatus for transmitting a reference signal in a wireless communication system. The present specification comprises transmitting at least one of the user equipment (UE)-specific value which is the parameter used for generating the UE-specific reference signal sequence to the UE, selecting one value out of at least one of the UE-specific value and cell-specific value, calculating an initialization value of pseudo-noise (PN) sequence based on the value selected, generating a first reference signal sequence using the initialization value of PN sequence, mapping the first reference signal sequence to a resource element, and transmitting a reference signal to the UE using the resource element to which the first reference signal sequence is mapped. | 10-02-2014 |
20150029912 | USER EQUIPMENT, PDSCH A/N TRANSMITTING METHOD THEREOF, TRANSMISSION/RECEPTION POINT, AND PDSCH A/N RECEIVING METHOD THEREOF - The present invention relates to a system that includes a transmission/reception point and a user equipment having different configurations in inter-band and performs a TDD (Time Division Duplex) method. | 01-29-2015 |
20150043521 | METHOD FOR MAPPING HYBRID ARQ INDICATOR CHANNEL - The present invention relates to a method for mapping a hybrid ARQ indicator channel, which is transmitted to a downlink in a wireless communication system, to a frequency and a time resource. | 02-12-2015 |
20150078278 | HYBRID ARQ INFORMATION TRANSMITTING METHOD AND HYBRID ARQ INFORMATION RECEIVING METHOD - The present application relates to a method for transmitting and receiving hybrid ARQ information transmitted via a downlink in a wireless communication system. In particular, the method for a transmission point to transmit hybrid automatic repeat request (ARQ) information in a system having multiple transmission points comprises, as technical features, the steps of: transmitting virtual cell identity (ID) information to a terminal; and transmitting, using a resource which has been determined on the basis of the virtual cell ID information, hybrid ARQ information for indicating whether uplink data transmitted from the terminal has been received or not. | 03-19-2015 |
20150098401 | METHOD FOR ALLOCATING RESOURCE FOR HYBRID ARQ INFORMATION - Provided is a method for allocating a resource for hybrid ARQ information, which is transmitted to a downlink, in a wireless communication system. The method for a transmission point transmitting the hybrid automatic repeat request (ARQ), includes: transmitting to a terminal an index of a group to which each of the terminals belong, along with information on a physical resource block to which an uplink data channel is allocated, and downlink control information for delivering circulation delay information of a reference signal, which is for demodulating an uplink; and transmitting the hybrid ARQ information, which includes whether the uplink data channel that has been transmitted is received, through a resource which is determined on the basis of the information on the physical resource block to which the uplink data channel is allocated, the circulation delay information of the reference signal, and the index of the group. | 04-09-2015 |
20150236883 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for transmitting and receiving a reference signal in a wireless communication system. In the method, in order to dynamically switch an uplink (UL) Demodulation-Reference Signal (DM-RS) according to the communication environment, such as CoMP and MU-MIMO, a parameter set for generation of a reference signal sequence is configured to include a Virtual Cell Identifier (VCID) parameter configured by information of a total of 9 bits and a cyclic shift hopping initial value parameter c | 08-20-2015 |
20150296469 | METHOD AND APPARATUS FOR TRANSMITTING SYNCHRONIZATION SIGNAL FOR DEVICE TO DEVICE COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM - Exemplary embodiments provide a method and apparatus for transmitting a synchronization signal for Device-to-Device (D2D) communication in a wireless communication system. With respect to a D2D synchronization source to transmit a synchronization signal for D2D communication, the method includes: generating a D2D Synchronization Signal (D2DSS); and transmitting, by a synchronization source, the D2DSS to a D2D reception (Rx) UE, wherein the D2DSS includes a Primary D2D Synchronization Signal (PD2DSS) generated based on information associated with the synchronization source. | 10-15-2015 |
20150327118 | APPARATUS AND METHOD FOR TRANSMITTING DATA THROUGH DEVICE TO DEVICE COMMUNICATION - Exemplary embodiments provide a method and apparatus for transmitting data through a device-to-device (D2D) communication between user equipments (UEs), the method including: generating, at a first UE, first D2D data, the first D2D data corresponding to a transport block (TB) unit; and transmitting, from the first UE to a second UE, the first D2D data through at least one D2D communication resource, the at least one D2D communication resource being based on a sub-RPT (sub-resource pattern for transmission). An RPT defined in a D2D resource pool is configured based on the sub-RPT, and the sub-RPT indicates the at least one D2D communication resource for the transmission of the first D2D data among at least two D2D communication candidate resources. | 11-12-2015 |
20160044668 | APPARATUS AND METHOD FOR DETERMINING D2D DATA RESOURCE FOR D2D COMMUNICATION - A method and apparatus for supporting a device-to-device (D2D) communication between user equipments (UEs) are provided. The method includes: receiving, at a UE, configuration information associated with a D2D data transmission resource, the configuration information including information of a D2D data allocation period and being transmitted from an evolved NodeB (eNB); determining, at the UE, a D2D data transmission resource offset and a period associated with a D2D data transmission resource bitmap in each D2D data allocation period, the D2D data transmission resource bitmap including at least one bit corresponding to bit value “1”; and determining a pool of subframes corresponding to the bit value “1” of the D2D data transmission resource bitmap, the period associated with the D2D data transmission resource bitmap including the pool of subframes, the pool of subframes corresponding to D2D data transmission resources through which a D2D data transmission is capable. | 02-11-2016 |
20160044669 | APPARATUS AND METHOD FOR TRANSMITTING D2D DATA BASED ON RESOURCE PATTERN - A method and apparatus for supporting a device-to-device (D2D) communication between user equipments (UEs) are provided. A method of transmitting device-to-device (D2D) data using a D2D data transmission resource by a user equipment (UE), the method including: receiving, at a UE, configuration information associated with a D2D data transmission resource, the configuration information including information of a D2D data allocation period and being transmitted from an evolved NodeB (eNB); determining, at the UE, a D2D data transmission resource in each D2D data allocation period, the D2D data transmission resource including a pool of subframes; selecting D2D data transmission subframes from among the pool of subframes based on a changed pattern, the changed pattern being derived from a basic pattern; and transmitting, from the UE to another UE, D2D data based on the selected D2D data transmission subframes. | 02-11-2016 |
20160080059 | TERMINAL, METHOD WHEREBY TERMINAL RECEIVES CHANNEL STATUS INFORMATION REFERENCE SIGNALS, BASE STATION, AND METHOD WHEREBY BASE STATION TRANSMITS CHANNEL STATUS INFORMATION REFERENCE SIGNALS - The terminal receives channel status information reference signals (CSI-RSs) transmitted from a base station. The terminal includes a configuration information receiving unit for receiving, from the base station, CSI-RS configuration information which includes a number of CSI-RS antenna ports for a horizontal antenna in an antenna array of the base station and information indicating a CSI-RS pattern for the horizontal antenna in a particular subframe, a configuration identification unit for extracting a number of CSI-RS antenna ports for a vertical antenna and a CSI-RS pattern for the vertical antenna, based on the number of CSI-RS antenna ports for the horizontal antenna and the information indicating CSI-RS pattern for the horizontal antenna, when it is determined that a CSI-RS for the vertical antenna is transmitted, and a reference signal reception unit for receiving the CSI-RS for the horizontal antenna and the CSI-RS for the vertical antenna. | 03-17-2016 |