Patent application number | Description | Published |
20080204444 | TIMING CONTROLLER TO REDUCE FLICKER AND METHOD OF OPERATING DISPLAY DEVICE INCLUDING THE SAME - A timing controller to reduce a flicker in a display device is provided. The timing controller includes a line pattern detector and a frame pattern detector. The line pattern detector divides received data into a plurality of unit blocks and detects a line polarity of each of a plurality of horizontal lines included in each of the unit blocks. The frame pattern detector generates a polarity control signal to control a data inversion method based on a frame image pattern detected based on line polarities of the respective horizontal lines. | 08-28-2008 |
20080224976 | Method and apparatus for temporally/spatially randomly dithering and liquid crystal display using the same - A method of temporally and/or spatially randomly dithering, to facilitate converting an input M-bit subpixel signal into an (M−N)-bit subpixel signal, may include spatially and/or temporally randomly generating a dithering mask pattern satisfying a condition that a spatial mean and/or a temporal mean of an image signal before dithering matches a spatial mean and/or a temporal mean of the image signal after dithering, respectively, and converting the M-bit subpixel signal into the (M−N)-bit subpixel signal using the dithering mask pattern. | 09-18-2008 |
20080224983 | METHOD OF COMPENSATING FOR KICK-BACK VOLTAGE AND LIQUID CRYSTAL DISPLAY USING THE SAME - A method and apparatus of compensating for a kick-back voltage to reduce the generation of flicker in a liquid crystal display (LCD). The method of compensating for a kick-back voltage includes correcting input pixel data using a kick-back correction function that meets a condition on which a response characteristic of a voltage detected from a pixel electrode of a liquid crystal cell for a positive input pixel signal and a response characteristic of a voltage detected from the pixel electrode of the liquid crystal cell for a negative input pixel signal become symmetrical without causing a saturation state on a basis of a kick-back voltage measured from an LCD panel to generate corrected pixel data, and driving the LCD panel using the corrected pixel data. | 09-18-2008 |
20090128584 | Apparatuses and methods for converting sub-pixel data using pipe-lined dithering modules - A sub-pixel data conversion apparatus may include: a gamma correction block that converts input sub-pixel data to first sub-pixel data; and a dithering process block that generates a first dithering mask pattern and that performs a first dithering operation on the first sub-pixel data to a second sub-pixel data based on the generated first dithering mask pattern. A sub-pixel data gamma correction method may include setting error data for gamma correction on sub-pixel data and extracting error data corresponding to input sub-pixel data, adding the extracted error data and the input sub-pixel data, and converting the input sub-pixel data to first sub-pixel data based on a result of the addition. A sub-pixel data dithering method may include: generating a first dithering mask pattern and performing a first dithering operation; and generating a second dithering mask pattern and performing a second dithering operation. | 05-21-2009 |
20090214772 | METHOD AND APPARATUS FOR COATING POWDER MATERIAL ON SUBSTRATE - An apparatus and method for coating a powder material on a substrate is disclosed, to enable various materials such as metal or ceramic powder to be coated on a substrate made of a material having low heat-resistance, the method including supplying a predetermined powder; carrying the supplied powder to a predetermined spraying nozzle by injecting a gas at a room temperature; and spraying the powder carried under conditions of the room temperature and vacuum state on the substrate through spraying nozzle, wherein the grain size of predetermined powder is in a range between about 0.1 to about 10 μm, and the powder is sprayed on the substrate at a velocity of about 500 to about 1200 m/sec. | 08-27-2009 |
20100175199 | WASHING MACHINE AND METHOD OF OPERATING SAME - A washing machine and associated washing method are provided. The method may include rotating a drum, measuring and storing a vibration level of a cabinet while increasing a rotational speed of the drum, and measuring the vibration level of the cabinet after the rotational speed of the drum reaches a target rotational speed and determining whether or not the vibration level of the cabinet is greater than a set value. The method may then include adjusting the rotational speed of the drum if the vibration level is greater than the set value so as to minimize vibration and resonance in a support surface on which the washing machine is positioned. | 07-15-2010 |
20100264860 | MOTOR AND APPARATUS AND METHOD FOR CONTROLLING THE MOTOR - A motor, and a method and apparatus for controlling the motor for a washer are provided. The motor includes a stator on which a plurality of coils are wound and disposed in a circular shape, a rotor having a plurality of permanent magnets spaced apart from the coils by a predetermined distance, and a motor controller performing a vector control method for controlling a current vector applied on a d-q axis rotating coordinate system in a start mode of the rotor to make a current speed of the rotor follow a reference speed of the rotor by comparing the current speed with the reference speed. The motor controller includes a speed/position detector for detecting the current speed and a current position of the rotor using an on/off signal of a hall sensor installed on the stator. | 10-21-2010 |
20100283414 | MOTOR FOR WASHER, METHOD FOR CONTROLLING THE MOTOR, AND METHOD FOR CONTROLLING THE WASHER - A motor, and a method and apparatus for controlling the motor for a washer are provided. The motor includes a stator on which a plurality of coils are wound and disposed in a circular shape, a rotor having a plurality of permanent magnets spaced apart from the coils by a predetermined distance, and a motor controller performing a vector control method for controlling a current vector applied on a d-q axis rotating coordinate system in a start mode of the rotor to make a current speed of the rotor follow a reference speed of the rotor by comparing the current speed with the reference speed. The motor controller includes a speed/position detector for detecting the current speed and a current position of the rotor using an on/off signal of a hall sensor installed on the stator. | 11-11-2010 |
20120112118 | Soundproofing Nanoclay Composite and Method of Manufacturing the Same - Disclosed is a method of manufacturing soundproofing composite, and a soundproofing composite manufactured by the aforementioned method, the method comprising preparing a mixture by dissolving PP resin and nanoclay in a solvent; and volatilizing the solvent from the mixture. According to the present invention, the composite is manufactured by dissolving PP resin and nanoclay, to thereby realize great stiffness and soundproofing properties. | 05-10-2012 |
20140038525 | INPUT DEVICE WITH WIRELESS HEADSET FUNCTION FOR PORTABLE TERMINAL - Disclosed is a pen-like input device for a portable terminal which can provide the function of a wireless headset. The input device includes a housing configured with at least first and second spaced apart microphone holes formed therein. A transmitting/receiving (T/R) module is disposed inside the housing and coupled to the microphone element and a speaker. The T/R module transmits/receives communication signals to and from the portable terminal. A sound transferring part is provided within the housing to transfer sounds to a microphone element via a plurality of air pathways connected to the first and second microphone holes. | 02-06-2014 |