Patent application number | Description | Published |
20140357444 | CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE - A continuously variable transmission apparatus for a vehicle, may include a main shaft configured to receive torque of an engine, a subshaft disposed in parallel with and spaced apart from the main shaft, a reverse speed gear set having a reverse speed gear selectively connected to the main shaft, a first speed gear set having a first speed gear selectively connected to the subshaft, a second speed gear set having a second speed gear selectively connected to the subshaft, a variable shift apparatus engaged with the main shaft and the subshaft and continuously changing a ratio between rotation speeds of the main shaft and the subshaft so as to transmit torque of the main shaft to the subshaft, and an output gear set transmitting torque transmitted from the first speed gear or the second speed gear to a differential through a final reduction gear. | 12-04-2014 |
20150148170 | POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE - A power transmission system of a hybrid electric vehicle which uses an engine and first and second motor/generators as power sources may include an input shaft receiving torque of the engine, an intermediate shaft parallel with and apart from the input shaft, an output shaft relatively rotatable with respect to the intermediate shaft, a first planetary gear set including a first rotation element, a second rotation element, and a third rotation element, a second planetary gear set including a fourth rotation element, a fifth rotation element, and a sixth rotation element, a first transfer gear connecting the second rotation element with the output shaft, a second transfer gear connecting the input shaft or the first rotation element with the sixth rotation element, and a first clutch selectively connecting two rotation elements among three rotation elements of the second planetary gear set. | 05-28-2015 |
Patent application number | Description | Published |
20110139489 | PRINTED CIRCUIT BOARD - A printed circuit board is disclosed. The printed circuit board in accordance with an embodiment of the present invention can include an insulation substrate, a first ground, which is formed on one surface of the insulation substrate and connected to a first power source, a second ground, which is formed on one surface of the insulation substrate and connected to a second power source, a separator, which separates the first ground from the second ground, a first signal line, which is stacked on at least one of the first ground and the second ground, and a second signal line, which is stacked on at least one of the first ground and the second ground and is adjacent to the first signal line. The separator can include a curved part, which is bent in between the first signal line and the second signal line. | 06-16-2011 |
20120250267 | RADIO FREQUENCY COMMUNICATION MODULE - Disclosed herein is a radio frequency (RF) communication module. The RF communication module includes: a main substrate having a plurality of electronic components mounted on an upper surface thereof and having at least one ground pad formed at corners thereof; an insulating material encapsulating the electronic components mounted on the upper surface of the main substrate and having a metal layer formed on an upper surface thereof; and a side shielding layer formed on a side of the insulating material. | 10-04-2012 |
20150047888 | COIL COMPONENT AND BOARD HAVING THE SAME - A coil component may include: a magnetic body; and first and eighth external electrodes formed on one surface of the magnetic body, second and third external electrodes and sixth and seventh external electrodes that are formed on two surfaces adjacent to the one surface of the magnetic body, respectively, and fourth and fifth external electrodes formed on the other surface opposing the one surface of the magnetic body. The magnetic body includes upper and lower substrates and first to fourth coil parts disposed between the upper and lower substrates and enclosed by an insulation film, the first to fourth coil parts having coupled coils wound in parallel on the same plane, respectively, so that magnetic fluxes in the coupled coils are formed in directions opposite to each other, the coupled coils being composed of first to eighth coils. | 02-19-2015 |
20150048915 | CHIP ELECTRONIC COMPONENT - A chip electronic component may include: a magnetic body including an insulating substrate; internal conductive pattern parts disposed on at least one surface of the insulating substrate; external electrodes disposed on the magnetic body and connected to the internal conductive pattern parts; and an additional magnetic layer disposed on a bottom surface of the magnetic body and covering portions of the external electrodes disposed on the bottom surface of the magnetic body. | 02-19-2015 |
20150270053 | CHIP ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF - There are provided a chip electronic component and a manufacturing method thereof, and more particularly, a chip electronic component having an internal coil structure capable of preventing the occurrence of short-circuits between coil portions and having a high aspect ratio (AR) by increasing a thickness of a coil as compared to a width of the coil, and a manufacturing method thereof. | 09-24-2015 |
20150340149 | CHIP ELECTRONIC COMPONENT AND BOARD FOR MOUNTING THEREOF - A chip electronic component may include a magnetic material body including an insulating substrate and coil conductor patterns formed on at least one surface of the insulating substrate, and external electrodes disposed on both end portions of the magnetic material body so as to be connected to end portions of the coil conductor patterns, respectively. In a cross section of the magnetic material body in a length direction, a thickness of an innermost loop/section of the coil conductor patterns may be smaller than a thickness of the remaining loops/sections of the coil conductor pattern. | 11-26-2015 |
20150371752 | CHIP ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME - A chip electronic component may include: a magnetic body; and internal coil parts buried in the magnetic body. The magnetic body includes: a core layer including the internal coil parts; and upper and lower cover layers disposed on upper and lower portions of the core layer, respectively, the core layer having a level of magnetic permeability different from that of at least one of the upper and lower cover layers. | 12-24-2015 |
Patent application number | Description | Published |
20100202157 | LIGHT GUIDE FILM AND BACKLIGHT UNIT HAVING THE SAME - A backlight unit includes a light source for emitting light; and a light guide film for directing light emitted from the light source toward a liquid crystal display panel. In the backlight unit, the light guide film includes a polycarbonate (PC) film comprising a plasticizer; and at least one of a reflective layer or an optical layer on at least one surface of the PC film. | 08-12-2010 |
20120019758 | DISPLAY DEVICE - An exemplary embodiment provides a display device that includes: a display panel; a window positioned on the display panel; and an anti-reflection layer coated on the window. | 01-26-2012 |
20120169784 | LIQUID CRYSTAL DISPLAY APPARATUS AND METHOD FOR DRIVING THE SAME - A method of driving a liquid crystal display (LCD) apparatus, the method including the operations of determining whether a grayscale value of an input image has a same value for at least two frames; if the grayscale value of the input image has the same value for at least two frames, correcting a display image by generating the display image by converting the grayscale value of the input image into an adjacent grayscale value; and displaying the display image. | 07-05-2012 |
20130177751 | ANTI-REFLECTIVE COATING LAYER AND MANUFACTURING METHOD THEREOF - An anti-reflective coating layer with transparent non-chromaticity includes a substrate and an anti-reflection layer, the anti-reflection layer including a plurality of high reflective layers and a plurality of low reflective layers alternately disposed on the substrate, a reflectance of the anti-reflection layer being 0.01% to 1.2% throughout a wavelength range of visible ray. | 07-11-2013 |
20140062988 | ORGANIC LIGHT EMITTING DIODE DISPLAY AND DRIVING METHOD THEREOF - An organic light emitting diode display includes at least one pixel circuit, a scanning drive unit connected to the pixel circuit through a scan line and generating a selection signal to be applied to the pixel circuit, and a data drive unit connected to the pixel circuit through a data line and applying a data voltage to the pixel circuit. The data drive unit includes a first line to which the data voltage is applied and a demultiplexer connected between the first line and a first end of the data line, the demultiplexer time-divisionally applying the data voltage applied to the first line to the data line according to a demultiplexing signal. In one horizontal cycle, at least a portion of a period in which the demultiplexing signal is applied and at least a portion of a period in which the selection signal is applied overlap each other. | 03-06-2014 |
20140098083 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - An organic light emitting display device includes a scan driving unit supplying a first scan signal and a second scan signal to each of a plurality of scan lines; a data driving unit supplying data signals to each of a plurality of data lines to be synchronized with the second scan signal; pixels positioned at intersections of the scan lines with the data lines, receiving bias power when the first scan signal is supplied, and receiving the data signals when the second scan signal is supplied. | 04-10-2014 |
20140117998 | DISPLAY DEVICE AND BONDING TEST SYSTEM - A display device includes a display panel having a glass substrate, a first input pad formed on the glass substrate and a second input pad formed on the glass substrate, and a driver integrated circuit mounted on the glass substrate of the display panel using a chip-on-glass (COG) method. The driver integrated circuit includes first and second input bumps respectively coupled to the first and second input pads, and an internal ground line coupled to the first and second input bumps. The first input bump of the driver IC receives a test signal through the first input pad when a COG bonding test is performed, and receives a ground voltage when the display device operates. | 05-01-2014 |
20140146029 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD OF THE SAME - An organic light emitting display device includes an organic light emitting display panel, and a driver that drives the organic light emitting display panel. The driver applies a first power voltage and a second power voltage to the organic light emitting display panel, the first power voltage is lower than the second power voltage during a first period, and the first power voltage is higher than the second power voltage during a second period. | 05-29-2014 |
20140333513 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display unit includes data lines, first scan lines, second scan lines, light emission control lines and pixels, where each pixel is connected to a corresponding data line of the data lines, a corresponding first scan line of the first scan lines, a corresponding second scan line of the second scan lines and a corresponding light emission control line of the light emission control lines; a scan driver configured to transfer first scan signals to the first scan lines, and transfer second scan signals to the second scan lines, respectively; a data driver configured to transfer data signals to the data lines, respectively; and a light emission control driver configured to transfer light emission control signals to the light emission control lines, respectively, in which the scan driver transfers the second scan signals substantially simultaneously to at least two second scan lines among the second scan lines. | 11-13-2014 |
20150138258 | ORGANIC LIGHT-EMITTING DIODE (OLED) DISPLAY - An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a pixel unit and an emission driver. The pixel unit includes a plurality of pixels. The emission driver is configured to output an emission control signal wherein the emission control signal includes a plurality of odd-numbered frames and a plurality of even-numbered frames. Each of the odd-numbered and even-numbered frames includes at least one emission period and at least one non-emission period, and each odd-numbered frame and each even-numbered frame have respectively a different number of non-emission periods. | 05-21-2015 |
20150160276 | SYSTEM FOR INSPECTING DISPLAY PANEL - A system for inspecting a display panel includes the display panel, a driving circuit unit and a controller. The display panel includes a plurality of pixels positioned in a display area, and first and second test pads positioned in a non-display area. The driving circuit unit is positioned in the non-display area of the display panel, and includes first and second test bumps respectively bonded to the first and second test pads. The controller calculates a bonding resistance between the first and second test pads and the first and second test bumps. | 06-11-2015 |
Patent application number | Description | Published |
20100249444 | Method for Preparation of Cross-Condensed Compound Between Amino Acids and Aminoalkylsilane Having Alkoxy Groups Using Microwave - The present invention provides a method of preparing a cross-condensed compound of an amino-acid derivative and (aminoalkyl) trialkoxysilane using microwave, including: irradiating and heating an amino-acid derivative and (aminoalkyl) trialkoxysilane in a microwave reactor to obtain a reaction product (step 1); and refining the reaction product obtained in the step 1 by removing an unreacted solid material from the reaction product and then leaving the reaction product at room temperature under vacuum to remove excess (aminoalkyl) trialkoxysilane therefrom (step 2). According to the method, since a cross-condensation reaction is performed using microwave, unlike a conventional condensation reaction, economic efficiency is increased due to no catalyst, short reaction time and no solvent. Further, the yield and selectivity of products is increased, and the condensation reaction can be environment-friendly performed because a solvent which can badly influence the environment may not be used. | 09-30-2010 |
20110103204 | METHOD AND APPARATUS FOR COMPENSATING FOR DEFECT OF STORAGE MEDIUM - An apparatus for compensating for a defect of a storage medium of an optical driving includes a memory to store sample values of a servo driving signal during at least one track sampled by a first signal and cycle information about the first signal; a servo driving signal estimator to estimate a servo driving signal during at least one next track using the sample values, the cycle information about the first signal, and cycle information based on a second signal; and a transmitter to transmit the servo driving signal estimated by the servo driving signal estimator to a servo driver of the optical driving device during a defect section of the storage medium; wherein the first signal is synchronized with a radial direction of the storage medium; and the second signal has a frequency higher than the first signal. | 05-05-2011 |
20120194113 | Apparatus and method of estimating inductance of permanent magnet synchronous motor - A method of estimating inductance of a permanent magnet synchronous motor (PMSM) includes injecting a signal having a frequency differing from an operating frequency of the PMSM into the PMSM during sensorless operation, sensing magnitudes of current responses to the injected signal, and estimating an inductance value at which the magnitude of the sensed current response is minimal to be an actual inductance value of the PMSM, thereby estimating inductance used in the PMSM regardless of position estimation error of the PMSM and thus more accurately and reliably estimating inductance of the PMSM. | 08-02-2012 |
20130163365 | SEMICONDUCTOR DEVICE HAVING HIGH-VOLTAGE TRANSISTOR - A semiconductor device includes a memory cell array having a plurality of memory cells respectively coupled to first and second bit lines, page buffers, and a bit line selection circuit including a plurality of selection circuit blocks configured to couple the first or second bit lines to the page buffers. A pair of the first and second bit lines is disposed in each of the plurality of selection circuits so that first bit lines of adjacent selection circuit blocks face each other, or second bit lines of adjacent selection circuit blocks face each other. | 06-27-2013 |
20140063968 | SEMICONDUCTOR MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A semiconductor memory device includes a memory block configured to include memory cells coupled to word lines and a peripheral circuit configured to perform a first program operation, a program verifying operation and a second program verifying operation for memory cells coupled to a word line selected from the word lines, and supply program allowable voltages having different levels to selected bit lines of program allowable cells located between program inhibition cells in the first program operation and the second program operation. | 03-06-2014 |
Patent application number | Description | Published |
20140021870 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF DRIVING THE SAME - There is provided an organic light emitting display capable of displaying an image of uniform brightness. The organic light emitting display includes a panel including pixels, the pixels including driving transistors, the gate electrodes of the driving transistors being configured to be initialized by voltages supplied from an initializing power supply, and an initializing power supply generator for supplying the initializing power supply. The initializing power supply generator is configured to set a voltage value of the initializing power supply to vary to correspond to a position of the panel. | 01-23-2014 |
20150279471 | SEMICONDUCTOR DEVICE - A semiconductor device includes a plurality of memory blocks, wherein each of the plurality of memory blocks includes a first select transistor electrically coupled to a common source line, a second select transistor electrically coupled to a bit line, and a plurality of memory cells electrically coupled between the first and second select transistors, and an operation circuit suitable for applying operation voltages for a program operation, a read operation, and an erase operation to a selected memory block selected from the plurality of memory blocks, and applying a first positive voltage to gates of the first select transistors in unselected memory blocks of the plurality of memory blocks when an erase voltage is applied to the common source line during the erase operation. | 10-01-2015 |
20150294625 | ORGANIC LIGHT-EMITTING DISPLAY AND METHOD OF DRIVING THE SAME - An organic light-emitting display includes a display unit including a plurality of pixels; and a controller configured to correct first image data having a first gray level, which is included in image data, to have a second gray level higher than the first gray level, wherein the controller is configured to correct the first image data at intervals of N frames, where N is an integer of one or more. | 10-15-2015 |
Patent application number | Description | Published |
20090113232 | APPARATUS AND METHOD FOR MANAGING WIRELESS SENSOR NETWORK - An apparatus for managing a plurality of wireless sensor networks selects a configuring policy according to a characteristic of each wireless sensor network and configures a network with the selected configuring policy for management. When an error occurs in the wireless sensor network, the apparatus performs error diagnosis based on a configuring policy applied to the error-detected wireless sensor network, infers a cause of the error, and provides an error recovery method corresponding to the inferred cause of the error to the error-detected wireless sensor network. | 04-30-2009 |
20120230337 | METHOD AND APPARATUS FOR PACKET CALL SETUP - An IP packet forwarding server forwards an IP data packet between a user terminal and a machine-type communications (MTC) device allocated with a private internet protocol (IP). Such an IP packet forwarding server allocates a call identifier for connection between the user terminal and the MTC device, sets up a packet call to the MTC device and the user terminal using the call identifier, obtains packet forwarding information while setting up the packet call to the MTC device and the user terminal, and forwards an IP data packet between the MTC device and the user terminal using the packet forwarding information. | 09-13-2012 |
20130094403 | METHOD AND APPARATUS FOR PROVIDING SENSOR NETWORK INFORMATION - An apparatus for providing sensor network information receives sensing information containing sensing values obtained by sensor resources from sensor network middleware, converts the sensing information into an RDF (resource description framework) form, and stores and manages it in an RDF storage. The apparatus searches for information corresponding to a query from an application service, from among the information stored in the RDF storage, and provides it to the application service. | 04-18-2013 |
20130095867 | METHOD AND APPARATUS FOR MANAGING WIRELESS SENSOR NETWORK - A sensor network management apparatus generates group specification information including requirements corresponding to an externally input service request, and forms a logical sensor network for the service request based on the generated group specification information. USN actuating information relating to USN (ubiquitous sensor network) resources included in the logical sensor network is generated, and USN resources are operated based on the USN actuating information. | 04-18-2013 |
20140138432 | SENSOR TAG AND METHOD OF PROVIDING SERVICE USING THE SAME - A sensor tag includes: a tag chip that receives a supply of a driving voltage that is generated from a radio frequency (RF) signal that is received from a reader and that transmits sensor data to the reader according to a request from the reader; at least one sensor that receives a supply of a necessary driving voltage from the tag chip and that measures corresponding sensor data; and a micro controller unit (MCU) that receives a supply of a necessary driving voltage from the tag chip and that transfers sensor data that is measured from the at least one sensor to the tag chip. | 05-22-2014 |
20150066995 | APPARATUS AND METHOD FOR CONNECTING NOSQL DATA AND LINKED DATA - Apparatus and method for connecting NoSQL data and linked data are provided. The method includes converting the NoSQL data into RDF data, and issuing the converted RDF data as the linked data; collecting extended linked data extended by connecting the issued linked data and external linked data; and storing the collected extended linked data as the NoSQL data. Accordingly, a dynamic virtuous circulation structure capable of utilizing advantages and mutually compensating for disadvantages of each of the NoSQL data and the linked data can be constructed. | 03-05-2015 |
20150142731 | SYSTEM FOR SAVING SENSING DATA, APPARATUS FOR SAVING DATA, METHOD FOR SAVING DATA - A system for saving data according to an embodiment of the present invention comprises an apparatus for data collecting data generated from a sensor; an apparatus for saving data saving the data in database corresponding to a cumulative data table and a latest data table; an apparatus for providing data transmitting a request for retrieval of data to the apparatus for saving data and obtaining the data saved in the cumulative data table or the latest data table according to the request; and an apparatus for serving data providing the data to a user's terminal. | 05-21-2015 |
20150142963 | SMART TERMINAL AND METHOD FOR COLLECTION DATA SUBSCRIPTION - A smart terminal and a method for subscribing to collection data are disclosed. The smart terminal in accordance with an embodiment of the present invention includes: a main application configured to make a data collection request; a plurality of subscription applications configured to subscribe to collection data being collected according to the data collection request made by the main application; a gateway module configured to perform communication with an internal/external device, request a target device in the internal/external device for data collection according to the data collection request made by the main application, and receive a collection data report from the target device if the target device collects the collection data; and a data hub configured to have the collection data report transferred thereto from the gateway module and provide the collection data to the subscription applications. | 05-21-2015 |
20150347914 | METHOD FOR DATA PARALLEL INFERENCE AND APPARATUS THEREOF - Exemplary embodiments of the present invention relate to a method and apparatus for big data parallel inference. A method for data parallel inference according to an embodiment of the present invention comprises generating a predetermined network comprising a pattern network and a join network based on rule files and a predetermined algorithm; performing a pattern matching test for input data in parallel on a plurality of pattern matching means by loading the pattern network to each of the plurality of pattern matching means and distributing the inputted data to the plurality of pattern matching means; and inferring new data by performing a join matching test for the data which has passed the pattern matching test. According to embodiments of the present invention, new data can be inferred by analyzing accurately and fast big data. | 12-03-2015 |
Patent application number | Description | Published |
20110061210 | APPARATUS FOR ADJUSTING LENGTH OF TENSION TIE FOR CABLE NETWORK ANTENNA - An apparatus for adjusting the length of a tension tie mounted on a deployable antenna based on a cable network structure includes a cable retainer provided with a retaining hole, a cable being connected to the cable retainer; a retaining case coupled to the outer periphery of the cable retainer and provided with a plurality of retaining holes; and a retainer positioned inside the cable retainer and configured to extend through the retaining hole of the cable retainer and through one of the retaining holes of the retaining case so that the cable retainer and the retaining case are prevented from moving in the longitudinal direction. | 03-17-2011 |
20110140764 | CMOS SWITCH FOR USE IN RADIO FREQUENCY SWITCHING AND ISOLATION ENHANCEMENT METHOD - Provided is a CMOS switch for use in RF switching having improved isolation properties. The CMOS switch includes a serial switching unit having first and second CMOS switches, a switching isolation unit for allowing an unselected output terminal of two output terminals to be electrically isolated from a common input terminal when the serial switching unit operates and an isolation enhancement unit. The isolation enhancement unit is connected in parallel to the first and the second CMOS switches between the two output terminals forming a parallel resonance circuit together with a parasitic capacitor of the serial switching unit. The CMOS switch for use in RF switching according to the present invention has a simple circuit structure and excellent operating properties at the MF or higher band. Also, the CMOS switch having high isolation properties is realized. | 06-16-2011 |
20110249761 | BROADBAND WIRELESS SYSTEM - Disclosed is a broadband wireless system which has a high bit resolution and a wide operating range, enables measurement and use of signal specifications such as an arrival time, strength, frequency, pulse width, modulation type of a signal, has a simple configuration with high reliability, and enables easy use of the processed signal. The broadband wireless system includes an antenna receiving the broadband wireless signal; a reception unit receiving and processing the broadband wireless signal from the antenna and converting the broadband wireless signal into a first intermediate frequency signal; a signal distribution unit converting the first intermediate frequency signal into second intermediate frequency signals which are equal to one another; a parallel amplification unit generating third intermediate frequency signals which are obtained by amplifying the individual second intermediate frequency signals provided from the signal distribution unit with different amplification rates; a parallel analog-to-digital conversion unit performing analog-to-digital conversion of the individual third intermediate frequency signals from the parallel amplification unit and generating discrete intermediate frequency signals; and an execution system selecting any one of the individual discrete intermediate frequency signals by analyzing the individual discrete intermediate frequency signals of the discrete intermediate frequency signal from the analog-to-digital conversion unit and processing the selected individual discrete intermediate frequency signal. | 10-13-2011 |
20120044125 | CABLE NETWORK ANTENNA AND THE PRODUCING METHOD THEREOF - A cable network antenna and a manufacturing method thereof are provided. The cable network antenna maintains correct positions of nodes at which a plurality of cables intersect, using a circumferential truss that minimizes transformation of a reflecting surface. Accordingly, accuracy of the reflection surface is achieved. | 02-23-2012 |
20120319771 | APPARATUS FOR CALIBRATING AMPLITUDE AND PHASE ERRORS, MULTIPORT AMPLIFIER INCLUDING THE SAME, AND METHOD OF AMPLIFYING THE MULTIPORT AMPLIFIER - A multiport amplifier modulates a reference quadrature phase shift keying (QPSK) signal using an input RF signal to an input hybrid network, generates a plurality of binary phase shift keying (BPSK) signals by demodulating RF signals that are amplified by a plurality of power amplifiers, detects an amplitude error and a phase error of two corresponding amplified RF signals by comparing a QPSK signal that is generated by coupling two RF signals having a phase difference of 90° among the plurality of BPSK signals with a reference QPSK signal, and compensates the detected amplitude error and phase error. | 12-20-2012 |
20130207749 | DIGITAL ATTENUATOR WITH REDUCED PHASE DIFFERENCE - Disclosed is a digital attenuator, and more particularly, a digital attenuator for improving a performance in various respects, and also provided is a structure for reducing a phase difference of the digital attenuator by equipping an inductor as a phase retardation element. | 08-15-2013 |
20130259107 | APPARATUS AND METHOD FOR MULTIPORT AMPLIFICATION IN COMMUNICATION SYSTEM - Disclosed is an apparatus and a method for multiport amplification configured to amplify a signal input to a multi-input port and output the amplified signal to a multi-output port in order to normally transmit/receive a signal in a communication system. The apparatus and the method are configured to: amplify an input signal input through a multi-input port, detect a phase error and an amplitude error of the input signal, and then calculate a phase error value and an amplitude error value of the input signal; correct the phase error and the amplitude error of the input signal through the phase error value and the amplitude error value of the input signal; and then amplify the input signal of which the phase error and the amplitude error are corrected, and output the input signal to a multi-output port. | 10-03-2013 |
20140077901 | COMPACT WAVEGUIDE TERMINATION - Provided is a compact waveguide termination including: a waveguide, a termination coupled with the waveguide and formed with a groove, and a thin film resistor part coupled with the groove and configured to attenuate an input signal at a central region of the waveguide, thereby improving frequency performance. | 03-20-2014 |
20140125427 | WIDE BAND SUM & DIFFERENCE CIRCUIT FOR MONOLITHIC MICROWAVE INTEGRATED CIRCUIT - Disclosed is a wide band sum & difference circuit for a monolithic microwave integrated circuit according to an exemplary embodiment of the present invention. The wide band sum & difference circuit for a monolithic microwave integrated circuit according to an exemplary embodiment of the present invention, including: a Range coupler having one terminal connected to a plurality of first ports that receive a signal and the other terminal connected to a plurality of second ports that output signals; one λ/4 line that is connected between one output terminal and one second port of the Range coupler in series; and one short stub λ/4 line that is connected with the other output terminal and the other second port of the Range coupler in parallel. | 05-08-2014 |
20140152395 | LOW PHASE SHIFT VOLTAGE VARIABLE ATTENUATOR - Disclosed is a low phase shift voltage variable attenuator. The low phase shift voltage variable attenuator may include: a first directional coupler including a first input terminal in which a signal is input, a first isolation terminal connected to a ground power source through a termination resistor, a first coupling terminal, and a first through terminal; a second directional coupler including a second input terminal through which an attenuated signal, which is the attenuated input input signal, is output, a second isolation terminal connected to a ground power source through a termination resistor, a second coupling terminal, and a second through terminal; and a signal attenuating unit connected to the first coupling terminal, the first through terminal, the second coupling terminal, and the second through terminal, and configured to attenuate a signal transmitted through the first directional coupler to transmit the attenuated signal to the second directional coupler. | 06-05-2014 |
20150035619 | PHASE SHIFTER AND METHOD OF SHIFTING PHASE OF SIGNAL - Provided is a phase shifter for shifting a phase of a signal the phase shifter including an input unit to split an input signal into a plurality of signals having different phases, a connection unit to change at least one of magnitudes and phases of the plurality of signals, apply the changed plurality of signals to a plurality of loads, and receive a plurality of return signals generated when the applied signals are returned by the plurality of loads, and an output unit to generate an output signal having a predetermined phase difference from the input signal based on the return signals. | 02-05-2015 |
20150145707 | DIGITAL SERIAL-TO-PARALLEL CONVERTER AND GaAs MMIC USING THE SAME - A digital serial-to-parallel converter capable of minimizing a malfunction of a circuit by more stably performing an operation of a D flip flop in implementing a GaAs MMIC digital serial-to-parallel converter and a GaAs MMIC using the same are disclosed. The digital serial-to-parallel converter includes: a converter configured to convert a received clock signal, serial data, and load signal of TTL into a DCFL signal; a plurality of D flip flops configured to transmit the serial data received through the converter to a D flip flop of a next stage by the clock signal received through the converter and output the serial data of the D flip flop of the next stage by the load signal received through the converter; and a plurality of buffers configured to receive the serial data from the plurality of D flip flops to generate and output complementary signals. | 05-28-2015 |
20150180441 | MICROWAVE SWITCH AND METHOD OF MANUFACTURING MICROWAVE SWITCH - Provided is a microwave switch including at least one semiconductor device connected to a transmission line and grounded in parallel, and at least one inductor connected in series to the transmission line. When the semiconductor device is shorted, the inductor may perform impedance matching through an interaction with the semiconductor device. | 06-25-2015 |
20150256128 | MULTI-PORT AMPLIFIER AND METHOD FOR CONTROLLING THEREOF - The present invention provides a multi-port amplifier which adopts a pair of SP4T switches and a pair of hybrid couplers in order to flexibly adjust an amplification mode. By using the proposed invention, the limited system flexibility and reconfigurability due to fixed input and output relations are overcome regardless of a component failure in a system. Moreover, signal amplification based on effective signal distribution and combination can be consistently performed according to various port configurations by different switching modes. Thus, the overall practicality of outputs comparing to the conventional multi-port amplifier can be effectively increased within an available lifespan of the system. | 09-10-2015 |