Ryu, Gwangju
Heeyeon Ryu, Gwangju KR
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20110293993 | ELECTRICITY STORAGE SYSTEM - The present invention relates to an electricity storage system, which has high energy density, which is a property of a lithium-sulfur battery cell, and can perform high-speed output and high-speed charging/discharging which are properties of an electrochemical capacitor cell, while having high output and high energy density, by stacking the electrochemical capacitor cell on the lithium-sulfur battery cell. | 12-01-2011 |
Ho Hyun Ryu, Gwangju KR
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20140013784 | BLDC MOTOR DRIVING APPARATUS AND REFRIGERATOR USING THE SAME - A motor driving apparatus and a refrigerator using the same is provided. The refrigerator may include a compressor, a motor, a driving unit, temperature sensing units sensing the temperatures of storage chambers and an external temperature, and a control unit selecting a driving mode of the driving unit based on the sensing result of the temperature sensing units and controlling the driving unit to drive the motor according to the selected driving mode. In a general operation mode, the control unit controls the driving unit to drive the motor in a 120 degree conduction method, and in a power-saving operation mode, the control unit controls the driving unit to drive the motor in a 90 degree conduction method. The refrigerator increases a pulse width of driving current by converting the conduction method of the motor to drive the motor at a low speed during power-saving operation of the refrigerator. | 01-16-2014 |
Homin Ryu, Gwangju KR
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20150319524 | APPARATUS AND METHOD FOR DETECTING LOCATION OF MOVING BODY, LIGHTING APPARATUS, AIR CONDITIONING APPARATUS, SECURITY APPARATUS, AND PARKING LOT MANAGEMENT APPARATUS - An apparatus and method for detecting the location of a moving body. The apparatus may include a speaker configured to intermittently generate a pulse signal to a detection space and a microphone array configured to obtain a reflected sound of the pulse signal that is generated in the detection space. The location of a moving body is estimated by extracting a change of a sound field from the reflected sound. The present invention can be applied to an apparatus for detecting a moving body without any side effect because the location of a moving body can be accurately detected up to an angle and distance. Furthermore, the present invention can be applied to various application apparatuses, such as a lighting apparatus, an air conditioning apparatus, a security apparatus, and a parking lot management apparatus because there is no problem in health and there is no side effect in application. | 11-05-2015 |
In Sool Ryu, Gwangju KR
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20090309429 | STEPPING MOTOR - A stepping motor is disclosed, configured in such a manner that a cover is hitched by a hitching protruder of a housing to allow the cover to be coupled to the housing, or the cover is hitched by a caulking unit of the housing to allow the cover to be coupled to the housing, whereby the problem of parts being damaged by using adhesive can be reduced or eliminated because the adhesive is not used in coupling the cover. In addition, bending of the hitching protruder of the housing or caulking of a surface of the housing allows the cover to be coupled to the housing, whereby assembly time can be shortened to enhance the productivity. | 12-17-2009 |
Jeha Ryu, Gwangju KR
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20090195538 | METHOD AND SYSTEM FOR HAPTIC INTERACTION IN AUGMENTED REALITY - The present invention relates to a method and system for haptic interaction in augmented reality. More specifically, the present invention relates to a method and system for haptic interaction in augmented reality that can effectively remove noise from real images captured by an image capturing device and minimize discontinuity of force generated in the haptic interaction so as to stably and smoothly perform the haptic interaction in the augmented reality. | 08-06-2009 |
Je-Ha Ryu, Gwangju KR
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20090309827 | METHOD AND APPARATUS FOR AUTHORING TACTILE INFORMATION, AND COMPUTER READABLE MEDIUM INCLUDING THE METHOD - The present invention relates to a method and apparatus for authoring tactile information that generates a tactile video for representing tactile information in the form of an intensity value of a pixel in order to author tactile information. More particularly, the present invention relates to a method and apparatus for authoring tactile information that represents an intensity value of a pixel of a tactile video in a drawing manner on a tactile video input window while outputting and referring to audiovisual media. The present invention provides an apparatus for authoring a tactile video that represents information about driving strength of an actuator array of a tactile display apparatus in the form of an intensity value of a pixel. The apparatus includes a tactile video generating unit that including a configuration module and a tactile video authoring module. The configuration module performs configuration to author a tactile video. The tactile video authoring module includes a video clip playback window that outputs information about audiovisual media, such as a video clip or a text, becoming a base of authoring the tactile video by frames, and a tactile video input window to which an intensity value of each of pixels of the tactile video is input in a drawing manner. The tactile video is generated by frames. | 12-17-2009 |
20100278512 | NODE STRUCTURE FOR REPRESENTING TACTILE INFORMATION, AND METHOD AND SYSTEM FOR TRANSMITTING TACTILE INFORMATION USING THE SAME - The present invention relates to a node structure for representing tactile information, and method and system for transmitting tactile information using the same. More particularly, the present invention relates to a node structure that represents tactile information for driving a tactile display device including an array of drivers as a tactile video, and to method and system for transmitting tactile information using the same. The invention provides a node structure for representing information for driving a driver array of a tactile display device. The node structure includes: a url field that indicates the position of the tactile video storing information on the driving strength of the driver array as intensity values of pixels! a start time field that indicates the playback start time of the tactile video; and a stop time field that indicates the playback stop time of the tactile video. In addition, the invention provides method and system for transmitting tactile information using the node structure. | 11-04-2010 |
20120092146 | METHOD FOR EXPRESSING HAPTIC INFORMATION USING CONTROL INFORMATION, AND SYSTEM FOR TRANSMITTING HAPTIC INFORMATION - Provided is a method for expressing haptic information using control information, and a system for transmitting haptic information. In the method for expressing haptic information using control information, a tactile video is generated from tactile information for driving a drive array of a tactile device; force feedback data are generated from force feedback information for driving an actuator of a force feedback device; object data are generated to produce a scene descriptor that defines time positions of the tactile video, force feedback data, and multimedia information; and a stream file is generated by encoding the object data and multiplexing the encoded object data. The method comprises: a step of storing control information containing features and specifications of a haptic device including the tactile device and the force feedback device; and a step of expressing information of the scene descriptor through the haptic device with reference to the control information. | 04-19-2012 |
20130088440 | METHOD AND DEVICE FOR CONTROLLING HAPTIC INTERFACE - The present disclosure provides a method and device for controlling a haptic interface, which can maintain stability and enhance transparency by restricting force caused by unnecessary energy generated in the sample and hold processes while controlling the haptic interface. The method includes detecting a physical parameter based on driving of the haptic interface; calculating a reaction to be sent from a virtual environment to the haptic interface according to the physical parameter; calculating a bounding parameter satisfying a condition that a haptic system is passive, using the physical parameter and the reaction; adjusting the bounding parameter to be within a preset range; calculating force to be output to the haptic interface according to the adjusted bounding parameter; and applying the calculated force to the haptic interface. | 04-11-2013 |
20140379131 | Control Method and Device for Position-Based Impedance Controlled Industrial Robot - The present invention relates to a control method and device for position-based impedance controlled industrial robot, and more particularly, a control method and device for position-based impedance controlled industrial robot able to improve contact stabilization with regard to an environment with a variety of stiffness. | 12-25-2014 |
Jong Woo Ryu, Gwangju KR
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20090261020 | Nickel Based Catalyst Using Hydrotalcite-Like Precursor and Steam Reforming Reaction of LPG - The present invention relates to a nickel-based catalyst using hydrotalcite-like precursor and a steam reforming reaction by using the catalyst, and particularly to a nickel-based catalyst prepared by dispersing nickel uniformly onto the inner part and the surface of the support through a substitution between the magnesium and the active nickel metal and optimizing the molar ratios of nickel, magnesium and aluminum in order to utilize nickel as an active metal and a hydrotalcite-like precursor consisting of aluminum and magnesium, which shows an increased specific surface area of the catalyst and surface area of the active nickel, and thus enables the production of hydrogen-rich gas in high yield during the steam reforming reaction of LPG with superior maintenance of catalytic activity for a long period of time due to the inhibition of carbon deposition. | 10-22-2009 |
Kyung-Woo Ryu, Gwangju KR
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20110102001 | AC LOSS MEASUREMENT DEVICE OF HIGH-TEMPERATURE SUPERCONDUCTOR - A measuring device for measuring the alternating current (AC) loss of a high-temperature superconductor is disclosed. In accordance with an embodiment of the present invention, the device includes a pulse power supply unit, which outputs pulse power in a cycle, a lead wire, which is formed on both sides of the pulse power supply unit and applies the pulse power to a superconductor, a degaussing coil unit, which is connected to one side of the superconductor and cancels an inductive voltage, a shunt unit, which is serially connected between one side of the degaussing coil unit and one side of the pulse power supply unit, and a measurement unit, which is connected to both ends of the shunt unit and measures an electric current flowing through the superconductor. | 05-05-2011 |
San Chul Ryu, Gwangju KR
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20110273071 | Refrigerator and door thereof - A door handle includes a front surface part and a side surface part provided on an inner side chassis forming one side surface of a refrigerator door in the longitudinal direction, an inclined plane part formed between the front surface part and the side surface part in the longitudinal direction, a handle part formed on the inclined plane part so as not to be deviated from the inclined plane part, and a handle member provided with an opening formed in a shape corresponding to that of the handle part, and connected to the handle part. | 11-10-2011 |
Sang Ryu, Gwangju KR
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20150280048 | METHOD FOR MANUFACTURING POLYCRYSTALLINE SILICON THIN-FILM SOLAR CELLS BY MEANS METHOD FOR CRYSTALLIZING LARGE-AREA AMORPHOUS SILICON THIN FILM USING LINEAR ELECTRON BEAM - One embodiment of the present invention relates to a method of manufacturing polycrystalline silicon thin-film solar cell by a method of crystallizing a large-area amorphous silicon thin film using a linear electron beam, and the technical problem to be solved is to crystallize an amorphous silicon thin film, which is formed on a low-priced substrate, by means of an electron beam so as for same to easily be of high quality by having high crystallization yield and to be processed at a low temperature. To this end, one embodiment of the present invention provides a method of manufacturing polycrystalline silicon thin-film solar cell by means of a method for crystallizing a large-area amorphous silicon thin film using a linear electron beam, the method comprising: a substrate preparation step for preparing a substrate; a type 1+ amorphous silicon layer deposition step for forming a type 1+ amorphous silicon layer on the substrate; a type 1 amorphous silicon layer deposition step for forming a type 1 amorphous silicon layer on the type 1+ amorphous silicon layer; an absorption layer formation step for forming an absorption layer by radiating a linear electron beam to the type 1 amorphous silicon layer and thus crystallizing the type 1 amorphous layer and the type 1+ amorphous silicon layer; a type 2 amorphous silicon layer deposition step for forming a type 2 amorphous silicon layer on the absorption layer; and an emitter layer formation step for forming an emitter layer by radiating a linear electron beam to the type 2 amorphous silicon layer and thus crystallizing the type 2 amorphous silicon layer, wherein the linear electron beam is radiated from above type 1 and type 2 amorphous silicon layers in a linear scanning manner in which to reciprocate in a predetermined area. | 10-01-2015 |
Sang Chul Ryu, Gwangju KR
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20110048060 | Refrigerator - A refrigerator is disclosed. The refrigerator may have a door opening device which is connected at an external surface of a main body, and includes a pushing unit operated by a driving unit to open a refrigerator door by pushing one side of the refrigerator door. Also, a buffering member may be provided between the door opening device and the external surface of the main body. Accordingly, the reliability of the refrigerator is improved. | 03-03-2011 |
20110187255 | Home bar door and refrigerator having the same - A refrigerator including a refrigerator body, a door to open and close the front of the refrigerator body, the door having an opening, a home bar door to open and close the opening, and a hinge device provided at the home bar door, wherein the hinge device includes a hinge shaft, a damper including a case, a first rotation member rotatably disposed in the case, a second rotation member configured to be rotated together with the first rotation member, and a fluid contained in the case to apply rotational resistance to the first rotation member, and an elastic member coupled to the damper to apply force in the direction in which the door is opened, the second rotation member including a fixing part to fix the hinge shaft, a receiving part to receive the elastic member, and a coupling part coupled to the first rotation member. | 08-04-2011 |
20130086846 | DOOR OF REFRIGERATOR AND METHOD FOR MANUFACTURING THE SAME - In a refrigerator door in which a decoration member is mounted to a door frame using a foam material, the foam material fills a space formed between the decoration member mounted to a front side of the door frame and a rear panel mounted to a rear side of the door frame. Accordingly, the decoration member can be fixed to the door frame through direct contact with the foam material. | 04-11-2013 |
20150192347 | REFRIGERATOR - A refrigerator reduces a quantity of deformation of a body by improving rigidity of the body using a reinforcement structure. The refrigerator may include an electric apparatus box in which electric apparatus components for controlling an operation of the refrigerator are accommodated. Electric apparatus components may be disposed in a hinge cover which is disposed in the front of the refrigerator to improve spatial utility and a reinforcement plate formed of a steel material may be disposed in the electric apparatus box to prevent a fire from spreading. A heating pipe fixed to a front edge of an inner case of the refrigerator prevents dew condensation in an outer case of the refrigerator. The heating pipe is mounted on a fixing groove formed in a mounting portion provided on the front edge of the inner case. The heating pipe is fixed to the mounting portion using a clip. | 07-09-2015 |
Sang-Hoon Ryu, Gwangju KR
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20140308716 | NOVEL METHOD FOR PREPARING METABOLITES OF ATORVASTATIN USING BACTERIAL CYTOCHROME P450 AND COMPOSITION THEREFOR - Provided is a novel method for preparing metabolites of atorvastatin using bacterial cytochrome P450, and a composition therefor, and more particularly, a composition for preparing 2-hydroxylated product of 4-hydroxylated product from atorvastatin including bacterial cytochrome P 450 BM3 (CYP102A1), CYP102A1 mutants, and chimeras derived from the CYP102A1 mutants, a kit therefor, and a method for preparing thereof. | 10-16-2014 |
20150093793 | NOVEL METHOD FOR PRODUCING METABOLITES FROM OMEPRAZOLE USING BACTERIAL CYTOCHROME P450, AND COMPOSITION FOR SAME - The present invention relates to a novel method for producing metabolites from omeprazole using bacterial cytochrome P450, and a composition therefor, and more specifically, to a composition and a kit for producing a 5′-hydroxyl product from omeprazole, containing bacterial cytochrome P450 BM3 (CYP102A1) or mutants thereof, and to a method for producing the same. The composition, the kit, and the method are capable of economically and highly efficiently mass-producing the 5′-hydroxyl product from the omeprazole, and thus will significantly contribute to development of a novel drug using metabolites from the omeprazole. | 04-02-2015 |
Sang Wan Ryu, Gwangju KR
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20140138702 | SUBSTRATE RECYCLING METHOD AND RECYCLED SUBSTRATE - Exemplary embodiments of the present invention provide a substrate recycling method and a recycled substrate. The method includes separating a substrate having a first surface from an epitaxial layer, performing a first etching of the first surface using electrochemical etching, and performing, after the first etching, a second etching of the first surface using chemical etching, dry etching, or performing, after the first etching, chemical mechanical polishing of the first surface. | 05-22-2014 |
20150125981 | METHOD FOR SEPARATING SEMICONDUCTOR DEVICES USING NANOPOROUS STRUCTURE - The present invention relates to a method for separating semiconductor devices from a substrate using a nanoporous structure, wherein electrochemical etching is carried out in the absence of a surface metal layer, then the surface metal layer is deposited, and then a GaN thin film is transferred onto a metal wafer by means of wafer bonding and lift-off. The method for separating the semiconductor devices using a nanoporous structure includes the steps of: growing a first n-type nitride layer on the substrate; growing a dielectric layer on the first n-type nitride layer; forming a nanoporous structure in the first n-type nitride layer by means of electrochemical etching; re-growing a second n-type nitride layer on the first n-type nitride layer so as to form a second n-type nitride layer containing the dielectric layer; growing a multi-quantum well structure and a p-type nitride layer on the second n-type nitride layer for bonding with a conductive substrate; and separating the semiconductor devices from the substrate through selective HF etching of the dielectric layer. | 05-07-2015 |
Seon Young Ryu, Gwangju KR
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20090052849 | OPTICAL FIBER PROBE FOR SIDE IMAGING AND METHOD OF MANUFACTURING THE SAME - Disclosed are an optical fiber probe for side imaging and a method of manufacturing the same. An optical fiber probe according to an aspect of the invention includes a photonic crystal fiber, and an optical fiber lens that is formed by applying heat to a predetermined region including one end of the photonic crystal fiber and substantially removing air holes formed in the predetermined region. The optical fiber lens includes a light diffusion region that diffuses light propagating along a core of the photonic crystal fiber and focuses the light to enable side imaging, a reflector surface that reflects the light at a right angle to enable side imaging, and a lens surface that focuses the light. A small-sized optical fiber probe can be manufactured using a simple manufacturing process, and the optical fiber probe can be miniaturized. Therefore, a light measurement system can be miniaturized, which makes it possible to obtain side images of a very small sample, such as a blood vessel. | 02-26-2009 |
Seung Han Ryu, Gwangju KR
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20100182830 | NONVOLATILE MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A nonvolatile memory device includes an encoder configured to perform a scramble operation on input data, a digital sum value (DSV) generator configured to generate a DSV indicating a difference between a number of data ‘0’ and a number of data ‘1’ in the input data encoded by the encoder, a main cell unit of a page of a memory cell array, wherein the main cell unit is configured to store the input data encoded by the encoder, a spare cell unit of the page, wherein the spare cell unit is configured to store the DSV generated by the DSV generator, and a read voltage setting unit configured to determine a read voltage for the page by comparing a DSV generated from the stored data of the main cell unit and the stored DSV of the spare cell unit. | 07-22-2010 |
20120057389 | MEMORY SYSTEM AND METHOD OF OPERATING THE SAME - A memory system includes a memory device configured to read control data for operating conditions from a content addressed memory (CAM) block by performing a CAM read operation and to perform a data input/output operation based on the control data and a memory controller configured to store the control data of the memory device and to determine whether the memory device is to perform the CAM read operation by comparing the stored control data with the control data of the memory device when an operating mode of the memory device or the memory controller changes. | 03-08-2012 |
Young Bae Ryu, Gwangju KR
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20130041023 | Composition for Preventing or Treating Rotavirus Infection Comprising Licorice Extract - The present invention relates to a composition for preventing or treating rotavirus infection, comprising a licorice extract, fractions thereof or compounds separated therefrom. The licorice extract, fractions thereof or compounds separated therefrom have anti-rotavirus effects and exhibit not only virucidal effects against various rotaviruses, but also the effect of inhibiting the cytopathic effect of rotaviruses. Thus, the composition can be effectively used for the prevention or treatment of rotavirus infection. | 02-14-2013 |