Abstract: Provided is a skateboard. The skateboard includes front and rear boards each including a foot placing unit, a directional caster including at least two connectors respectively disposed on bottom surfaces of the front and rear boards at a predetermined distance, rotating arms rotatably coupled to the connectors respectively, and wheels respectively supported by the rotating arms and rollingly contacting the ground, and a connection unit having both ends axial-rotatably and pivotally connected to one sides of the front and rear boards.

Abstract: A touch type display device includes: a flat panel display module; a plurality of infrared light emitting units disposed on a portion or on the entirety of the edge of the flat panel display module; an infrared camera disposed on at least two corners of the flat panel display module; and a band pass filter allowing light of a certain wavelength band in light emitted from the infrared light emitting units to pass therethrough so as to be supplied to the infrared camera.

Abstract: Provided are a buried capacitor, a method of manufacturing the same, and a method of changing a capacitance thereof. The buried capacitor includes an upper electrode including at least one first hole, a lower electrode including at least one second hole, and a dielectric interposed between the upper electrode and the lower electrode.

Abstract: Provided are an inductor, which is vertically formed, and an electronic device having the inductor, and more particularly, an inductor capable of minimizing loss of a surface area and accomplishing high efficiency impedance by vertically forming the inductor in a plurality of insulating layers, and an electronic device having the same. The inductor includes a plurality of conductive lines disposed in the insulating layers; and vias vertically formed in the insulating layers to electrically connect the plurality of conductive lines. When a board or an electronic device including an inductor proposed by the present invention is manufactured, the inductor can occupy a minimum area in the electronic device or board while providing high inductance. In particular, the surface area of the electronic device or board occupied by the inductor can be remarkably decreased to reduce manufacturing costs.

Abstract: Provided is a microstrip patch antenna. The microstrip patch antenna includes a dielectric layer, a feed circuit disposed in the dielectric layer, at least one slot disposed in the dielectric layer and vertically spaced apart from the feed circuit, and a patch antenna disposed outside the dielectric layer and vertically spaced apart from the at least one slot.

Abstract: A method and system for verifying an electronic document and a system for providing an electronic document service are provided. The system for verifying the electronic document includes: an image data acquisition unit acquiring an image of the electronic document by scanning the electronic document; a barcode detection unit detecting a barcode inserted into a predetermined position in the acquired image of the electronic document and acquiring first electronic document data; an image data conversion unit generating second electronic document data by converting a format of the acquired image of the electronic document into a format that can be compared with the first electronic document data; a falsification determination unit determining whether the electronic document is falsified by comparing the first electronic document data with the second electronic document data; and a display unit displaying the fasification determination result determined by the falsification determination unit.

Abstract: An apparatus and method for determining contents information corresponding to a Rights Object (RO) by transmitting information on contents together when the RO is moved from a mobile device to a memory card or a smart card or when the RO is moved from the memory card or the smart card to the mobile device are provided. The apparatus includes a meta information manager for determining information on contents corresponding to the RO when the RO is moved, and for generating meta information containing the determined contents information, and a controller for providing control to transmit the RO and the meta information generated by the meta information manager to a portable storage device. Accordingly, the conventional problem can be solved in which information on contents cannot be determined by using a Contents IDentifier (CID) if the RO does not exist together with the contents.

Abstract: A display device capable of simplifying the structure and improving the reliability is disclosed. The display device includes an LCD module having a top case formed of metal, a glass substrate arranged on the LCD module, an infrared ray emitting module arranged to face three side surfaces of the LCD module and having a first magnet for first fixing to the top case, and a pair of infrared ray detection units arranged at corner ends of a side surface of the LCD module where the infrared ray emitting module is not arranged and having a second magnet for the first fixing to the top case.

Abstract: The present invention relates to a method of antioxidative functional estimation using an animal model, more precisely a method of antioxidative functional estimation using mice having oxidative damage caused by reactive oxygen species induced by irradiation and having lipid hydroperoxide secreted in the urine which might be index for quantitative and qualitative analysis for antioxidative functional estimation. The method of antioxidative functional estimation of the present invention can be effectively used for the screening of a novel anti-oxidant agent or antioxidative functional health food to regulate the production of lipid hydroperoxide.

Abstract: Provided are a multi-touch system and a driving method thereof. The method includes, extracting using a digital processor a touch frequency and at least one angle associated with at least one touch from image information captured by each of at least two cameras, selecting a touch mode on the basis of sum value of the touch frequencies extracted from the image information captured by the cameras, and performing a touch function corresponding to the selected touch mode using a user interface.

Abstract: A channel switching function is added to a wavelength division multiplexing passive optical network (WDM-PON) system, which is an access optical network system, and the potential transmission rate is increased by combining wide wavelength tunable lasers and a time division multiplexing (TDM) data structure and properly using the necessary optical components. In addition, when the wavelength of a light source or an arrayed waveguide grating (AWG) changes, the wavelength is traced and the magnitude of a transmitted signal is maximized without an additional detour line using a loop-back network structure. Furthermore, fewer thermo-electric controllers (TECs) are required for stabilizing the temperature of an optical line terminal (OLT) using wavelength tunable lasers, each laser electrically changing its wavelength.

Abstract: An electroabsorption (EA) duplexer in which an optical amplifier, a photodetector, and an optical modulator are monolithically integrated to obtain a high radio frequency (RF) gain in radio-over fiber (RoF) link optical transmission technology is provided. The EA duplexer includes a substrate, a separation area, an optical detection/modulation unit, and an optical amplification unit. The separation area includes a first epitaxial layer formed of at least one material layer on the substrate. The first epitaxial layer functions as a first optical waveguide. The optical detection/modulation unit includes a second epitaxial layer formed of at least one material layer on the first epitaxial layer to detect and modulate an optical signal. The second epitaxial layer functions as a second optical waveguide. The optical amplification unit includes the second optical waveguide and a third epitaxial layer formed of at least one material layer on the second epitaxial layer to amplify an optical signal.

Abstract: Provided is a dust collection unit of a vacuum cleaner having a handle formed on an outer circumference of the dust collection container and having an opened bottom such that user's fingers are inserted upward from a lower side of the handle for more convenient use of the vacuum cleaner.

Abstract: The method of the present invention involves performing the deodorization step before the hydrogenation step and carrying out the hydrogen addition reaction under mild conditions effective to prevent the hardening of edible oil and trans fatty acid production, resulting in the production of processed edible oil having an enriched buttery flavor that is 100-fold stronger than the conventional hydrogenated oil with no unpleasant smell and a very low trans-fatty acid content. Further, the processed edible oil prepared according to the method of the present invention, even with the addition of only a small amount to conventional edible oil, food and feed products, is capable of providing an enriched buttery flavor without increasing the trans-fatty acid content or unpleasant smell and is, thus, useful as a substitute oil for hydrogenated vegetable oil.

Abstract: Provided is a dust collection unit of a vacuum cleaner, including a dust collection container and a coupling portion formed at a concaved inside of the dust collection container, for allowing a lower cover to be selectively coupled to the dust collection container. The dust collection unit is firmly supported against an external impact, thereby enhancing the reliability of the vacuum cleaner and preventing the vacuum cleaner from being damaged.

Abstract: There are provided a liquid crystal display (LCD) to which infrared rays (IR) light sources are applied and a multi-touch system using the same. The LCD to which IR light sources are applied includes a back light in which a plurality of lamp light sources and a plurality of IR light sources are repeatedly arranged in column and row directions, a diffusion plate and a plurality of optical sheets arranged on the back light, and an LCD panel provided on the back light to display an image using light incident from the back light.

Abstract: Provided is an optical module used in a communication system employing a radio over fiber (ROF) technology delivering a radio frequency (RF) signal through an optical fiber. The optical module includes: an optical device; a signal line for transporting a radio frequency (RF) signal input from an external circuit to the optical device; and a resistor separately disposed from the signal line and having one end connected with the optical device, wherein the input impedance seen from the signal line is matched by the resistor. A bias voltage supplied to operate the optical device is applied through an inductor connected to the signal line between the optical device and a filter. Here, the filter formed by a pattern of the signal line prevents the bias voltage from being supplied to the external circuit. In order to amplify the RF signal input from the external circuit, an amplifier may be connected between the external circuit and the filter.

Abstract: A dynamic range enhancement method and apparatus for an imaging device expands a dynamic range of an input image without an associated increase in the amount of image calculations. The dynamic range enhancement method includes producing brightness information and color information from an input image; applying gamma correction and inverse gamma correction to the brightness information to produce a gamma corrected image and an inverse gamma corrected image; comparing variances of the gamma corrected image and the inverse gamma corrected image at identical spots; and expanding a dynamic range of the input image by selecting one of the variances at each spot. The dynamic range of an input image is expanded by applying a post imaging process without increasing calculation amount of the imaging device.

Abstract: A touch panel display device includes a liquid crystal panel to display an image by regulating transmittance of light supplied from a back light unit, and a touch sensing part provided on upper edges of the liquid crystal panel in order to detect a position touched by a user or an object. The touch sensing part includes infrared lamps to generate and emit infrared light, infrared light reflecting tubes mounted with the infrared lamps, and image sensors to sense the infrared light output from the light output regions of the infrared light reflecting tubes. Each of the infrared light reflecting tubes has light output regions and non-output regions evenly formed at a surface facing an upper surface of the liquid crystal panel so that the infrared light emitted from the infrared lamps is evenly irradiated on the upper surface of the liquid crystal panel.

Abstract: A display module including a touch panel configured to be touched so as to input information, a liquid crystal display panel disposed below the touch panel and configured to display the information to be touched on the touch panel, a plurality of emitting light units configured to emit infrared light formed in at least two sides of the touch panel, a plurality of image sensors disposed below the liquid crystal panel and configured to detect infrared rays redirected through the liquid crystal panel towards the image sensors based on a touching of the touch panel, and a controller configured to determine a portion of the touch panel that is touched based on signals received from the plurality of image sensors.