Patent application number | Description | Published |
20090117867 | SCALABLE BANDWIDTH SYSTEM AND METHOD OF CONTROLLING TUNABLE FILTER - The present invention relates to a scalable bandwidth system and a method of controlling a tunable filter. In the present invention, the scalable bandwidth system inputs, as a control signal of a tunable filter, a voltage corresponding to a section in which the capacitance according to an applied voltage is not practically changed for characteristics of varactor diodes, and inputs each control bit of the control signal to each varactor diode of the tunable filter to adjust the capacitance of each of the varactor diodes, and consequently adjusts the capacitance of the tunable filter by adding the capacitance of the varactor diodes. | 05-07-2009 |
20090140821 | APPARATUS AND METHOD FOR COMPENSATING CARRIER FEEDTHROUGH IN QUADRATURE MODULATION SYSTEM - The present invention relates to an apparatus and a method for compensating carrier feedthrough in a quadrature modulation system. In order to suppress the carrier feedthrough, and minimize and compensate the carrier feedthrough, differences of baseband differential input DC voltages in an in-phase as well as a quadrature-phase are simultaneously adjusted to 0 or a certain slight voltage difference by a simple analog circuit. Therefore, it is possible to suppress carrier feedthrough using a simple analog type apparatus for compensating carrier feedthrough, and simply achieve an apparatus for carrier feedthrough using a variety of quadrature modulators. | 06-04-2009 |
20100045731 | APPARATUS AND METHOD FOR INSPECTING DROPLET DISCHARGE CHARACTERISTICS OF INK-JET PRINTED HEAD - An apparatus for inspecting droplet discharge characteristics of an ink-jet printer head, subsequently discharging ink droplets, includes a photographing means for operating a digital camera to generate an overlapped droplet image for ink droplets at a photographing point before each subsequently discharged ink droplet hits a target point; a light emitting means for operating a speed light to give light to an ink droplet passing the photographing point after a delay time from an ink droplet discharging time point; and a droplet discharge characteristic inspecting means for calculating a signal-to-noise ratio distribution of each pixel of the overlapped droplet image, calculating an overlap rate of droplet images of each pixel from the signal-to-noise ratio distribution to calculate a center coordinate of droplet images, and quantitatively calculating and outputting deviation to droplet jetting velocity and direction using the center coordinate of droplet image, a droplet jetting coordinate and the delay time. | 02-25-2010 |
20100118744 | WIRELESS TRANSCEIVER SYSTEM FOR SUPPORTING DUAL MODE - The present invention relates to a wireless transceiver system for supporting a dual mode, and more particularly to a wireless transceiver system for supporting a dual mode that simultaneously supports the Frequency Division Duplex (FDD) method and the Time Division Duplex (TDD) method in a certain frequency band. The present system supports the FDD system conducting transmission and reception simultaneously by using different frequency bands for transmission and reception as well as the TDD system temporally alternating transmission and reception by using the common frequency band among an upper frequency band and a lower frequency band used in the FDD system as well as another frequency band adjacent thereto, thereby selectively supporting both of the two communication systems in a wireless transceiver system. Therefore, efficient use of various wireless communication standards and the limited frequency resource is provided, and on this basis, an efficient application of all wireless transceiver systems adopting the TDD system and the FDD system as well as the mobile communication base station and the terminal is provided. | 05-13-2010 |
20100146021 | MODULAR-3 CALCULATION APPARATUS AND METHOD - A modular-3 calculation method for binary number includes: determining whether two 1s consecutive from MSB exist in a binary number, when a target value for modular-3 calculation is inputted, and generating a first binary number by substituting the two 1s with 0 whenever the consecutive two 1s exist; performing a modular-3 calculation on the first binary number; and determining the result of the modular-3 calculation. | 06-10-2010 |
20110059707 | BIAS MODULATION APPARATUS, AND APPARATUS AND METHOD FOR TRANSMITTING SIGNAL FOR WIDEBAND MOBILE COMMUNICATION USING THE SAME - In a wideband mobile communication system, a signal transmitting apparatus separates an envelope curve signal which is size information and a phase signal which is phase information from a signal to transmit, and compares the envelope curve signal with a predetermined voltage. The signal transmitting apparatus performs active bias control that amplifies and outputs an envelope curve signal according to different driving voltages based on a comparison result, and supplies a bias voltage to a power amplifier that amplifies a phase signal based on the amplified signal. | 03-10-2011 |
20110237210 | APPARATUS AND METHOD FOR CONTROLLING GAIN OF POLAR TRANSMITTER - Disclosed is an apparatus for transmitting complex signals in a wireless communication system. The present invention, there is provided a method for controlling gain according to a magnitude change of output signals in a polar transmitter including an amplification unit having two or more amplification degrees, the method includes processes to control an output level of a modulated signal when a output-required power of transmission signals are less than a predetermined threshold value, and to perform a basic amplification through the amplification unit; to amplify the amplification unit at a first amplification level when the output-required power of the transmission signals is equal to or greater than a predetermined first threshold value and is less than a predetermined second threshold value; and to amplify the amplification unit at a second amplification level when the output-required power of the transmission signal is equal to or greater than the second threshold value. | 09-29-2011 |
20120154036 | DIGITAL PRE-DISTORTION POWER AMPLIFYING APPARATUS AND METHOD FOR DIGITALLY CONTROLLING SYNCHRONIZATION THEREOF - A digital pre-distortion (DPD) power amplifying apparatus and a method for digitally controlling synchronization of the DPD power amplifying apparatus, which includes a power amplifier, a bias shifter and a DPD unit, are provided. The method includes acquiring a DPD path delay time at a path along which an input signal is fed back to the DPD unit; delaying an input signal incoming to the power amplifier by the DPD path delay time and acquiring synchronization by delaying a bias signal a predetermined number of times until the bias signal and the delayed input signal are synchronized with each other; and in response to synchronization between the bias signal and the delayed input signal being established, pre-distorting the input signal according to a feedback signal output from the power amplifier. | 06-21-2012 |
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 |
20130128164 | MULTIFUNCTIONAL OPTICAL FILTER FOR STEREOSCOPIC DISPLAY DEVICE AND STEREOSCOPIC DISPLAY DEVICE COMPRISING THE SAME - Provided are a multifunctional optical filter for a stereoscopic display device and a stereoscopic display device including the same. The multifunctional optical filter includes a | 05-23-2013 |
20130147538 | DIGITAL PRE-DISTORTION DEVICE AND PRE-DISTORTION METHOD THEREOF - Disclosed is a digital pre-distortion device which includes a pre-compensation lookup table which outputs a first input value and a second input value adjacent to an input signal, a first distortion value corresponding to the first input value, and a second distortion value corresponding to the second input value; and a function generator which generates a pre-distortion function based on the first and second input values and the first and second distortion values and generates a pre-distortion value corresponding to the input signal from the pre-distortion function. | 06-13-2013 |
20130208451 | OPTICAL MEMBER AND METHOD FOR MANUFACTURING SAME, BACKLIGHT UNIT USING THE OPTICAL MEMBER, AND METHOD FOR MANUFACTURING THE BACKLIGHT UNIT - The present invention relates to an optical member, comprising: a light incidence surface; and a light-emitting surface which comprises a patterned portion intended for adjusting the intensity of light and formed at an area corresponding to a light source, and an adhesive portion disposed in an area other than the patterned portion. When the optical member of the present invention is applied to a backlight unit, the patterned portion, which diffuses the light from the light source, is formed in the area corresponding to the light source so as to effectively diffuse the light from the light source into the peripheral area. Also, the optical member and a diffusion plate are stacked via an air layer in the area corresponding to the light source (the area in which the patterned portion is disposed), and the optical member and the diffusion plate closely contact each other without an air layer in the remaining area, such that the intensity of the light transmitted between a light source portion and the peripheral portion may be adjusted with an improvement in the balance of brightness and uniformity. | 08-15-2013 |
20130337240 | PHASE CHANGE INK COMPOSITIONS AND CONDUCTIVE PATTERNS FORMED THEREFROM - A phase change ink composition includes metal nanoparticles, a dispersing agent allowing the metal nanoparticles to be stably dispersed and arranged within the phase change ink composition, and a solvent in which the metal nanoparticles and the dispersing agent are mixed and which comprises at least two sulfur-containing compounds, wherein the phase change ink composition has a melting temperature ranging from 60° C. to 90° C. | 12-19-2013 |
20140000700 | CONDUCTIVE POLYMER INK COMPOSITION AND ORGANIC SOLAR CELL INCLUDING THE SAME | 01-02-2014 |
20140071556 | FLEXIBLE COLOR FILTER SUBSTRATE USING PHASE CHANGE INK AND METHOD FOR MANUFACTURING THE SAME - There are provided a flexible color filter substrate and a method for manufacturing the same, the flexible color filter substrate including: a flexible substrate and R, G, and B patterns formed on the flexible substrate, wherein the R, G, and B patterns are formed using a phase change ink composition. | 03-13-2014 |
20140078416 | TRANSPARENT CONDUCTIVE POLYMER ELECTRODE FORMED BY INKJET PRINTING, DISPLAY DEVICE INCLUDING THE ELECTRODE, AND METHOD OF MANUFACTURING THE ELECTRODE - The present invention relates to a transparent conductive polymer electrode including a plurality of electrode lines formed of droplets of conductive polymer, each of the electrode lines including first and second regions having different conductive polymer droplet hit densities. The first region has a ratio of b/a within a range of 0.2 to 0.8, where “a” is a distance from a center to an edge of the electrode line in at least one direction of width and length directions thereof, and “b” is a distance from the center to an edge of the first region in the at least one direction. The second region is the remaining region of the electrode line, and the conductive polymer droplet hit density of the second region is lower than that of the first region. | 03-20-2014 |
20140079926 | METHOD OF PREPARING PRESSURE-SENSITIVE ADHESIVE PRODUCT - The present application relates to a method of preparing a pressure-sensitive adhesive product and the pressure-sensitive adhesive product. According to the present application, the pressure-sensitive adhesive product having different physical properties on both surfaces, for example, having different peeling strengths on both surfaces, or having a structure in which a pressure-sensitive adhesive and a support are sequentially formed may be efficiently provided. | 03-20-2014 |
20140106207 | SWELLING TAPE FOR FILLING GAP - A swelling tape for filling a gap, a method of manufacturing the swelling tape for filling a gap, a method of filling a gap, an electrode assembly and a secondary battery are provided. For example, the swelling tape can be applied inside a gap in which a fluid exists so as to fill the gap by becoming a 3D form, and can be useful at anchoring a subject in which the gap is formed, as necessary. | 04-17-2014 |
20140177048 | MULTIFUNCTIONAL OPTICAL FILTER FOR STEREOSCOPIC DISPLAY DEVICE AND STEREOSCOPIC DISPLAY DEVICE COMPRISING THE SAME - Provided are a multifunctional optical filter for a stereoscopic display device and a stereoscopic display device including the same. The multifunctional optical filter includes a 3D filter layer patterned into a first region adjusting a polarization state of a right-eye image and a second region adjusting a polarization state of a left-eye image, and a color filter layer having a RGB pattern, wherein the RGB pattern of the color filter layer and the pattern of the 3D filter layer are formed to correspond to each other. | 06-26-2014 |
20140199527 | INK COMPOSITION USABLE IN SOLAR BATTERY MANUFACTURING PROCESS, AND METHOD OF FORMING PATTERN USING THE SAME - Provided are an ink composition usable in a solar battery manufacturing process, a method of forming a pattern using the ink composition, an insulation film formed of the ink composition, and an etching mask formed of the ink composition. The ink composition includes: a) a polymerizable compound having an ethylenically unsaturated bond; b) a fluorinated surfactant; and c) a solvent, wherein the ink composition has a solid content of 45 parts by weight to 99.99 parts by weight. | 07-17-2014 |