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Choe, Seoul

Chong-Youn Choe, Seoul KR

Patent application numberDescriptionPublished
20110122813METHOD AND SYSTEM FOR PREVENTING USE OF STOLEN TERMINAL THROUGH FORCED LOCATION RE-REGISTRATION - Provided are a method and system for preventing the use of a stolen terminal when the stolen terminal registers its location again by making it inevitable for the stolen terminal to register its location again to be used. The method includes: receiving information that a user terminal was stolen; making a mobile application part (MAP) cancel location request to a mobile switching center (MSC) or a serving general packet radio service support node (SGSN) after receiving the information that the user terminal was stolen; and checking whether the user terminal is a stolen terminal when receiving a location registration approval request from the user terminal after performing a MAP cancel location process by deleting subscriber information of the user terminal from the MSC or the SGSN in response to the MAP cancel location request.05-26-2011

Dami Choe, Seoul KR

Patent application numberDescriptionPublished
20110275416MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME - Disclosed herein are a mobile terminal and a method for controlling the same, which provide a user with a frame-scale content playback progress status information from the related art time-scale content playback progress status information. As described above, the mobile terminal includes a touch screen configured to display a playback screen of a content including image, and a controller controlling operations associated to a playback of the content. Herein, the controller may detect whether or not a command for displaying a playback progress status of the content in one of a time scale and a frame scale is being inputted. And, when the command is inputted, the controller may switch and display the playback progress status of the content from the time scale to the frame scale, and vice versa.11-10-2011
20120096354MOBILE TERMINAL AND CONTROL METHOD THEREOF - A mobile terminal and a control method thereof are disclosed. A mobile terminal and a control method thereof comprise a display; and a controller, when receiving a selection signal for a first item displayed on the display, searching for at least one second item of the same attribute with the first item selected and displaying the second item. According to the present invention, a search for related information is made easy by searching for a second item of the same attribute with that of a first item selected and displaying the second item.04-19-2012

Heeman Choe, Seoul KR

Patent application numberDescriptionPublished
20100326739EARTH-BORING TOOLS COMPRISING SILICON CARBIDE COMPOSITE MATERIALS, AND METHODS OF FORMING SAME - Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material, such as, for example, an aluminum or aluminum-based alloy. In some embodiments, the silicon carbide particles comprise an ABC—SiC material. Methods of manufacturing such tools include providing a plurality of silicon carbide particles within a matrix material. Optionally, the silicon carbide particles may comprise ABC—SiC material, and the ABC—SiC material may be toughened to increase a fracture toughness exhibited by the ABC—SiC material. In some methods, at least one of an infiltration process and a powder compaction and consolidation process may be employed.12-30-2010
20110094341METHODS OF FORMING EARTH BORING ROTARY DRILL BITS INCLUDING BIT BODIES COMPRISING REINFORCED TITANIUM OR TITANIUM BASED ALLOY MATRIX MATERIALS - Earth-boring rotary drill bits include bit bodies comprising a composite material including a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material. The bits further include a cutting structure disposed on a face of the bit body. In some embodiments, the bit bodies may include a plurality of regions having differing material compositions. For example, the bit bodies may include a first region comprising a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material, and a second region comprising a titanium or a titanium-based alloy material. Methods for forming such drill bits include at least partially sintering a plurality of hard particles and a plurality of particles comprising titanium or a titanium-based alloy material to form a bit body comprising a particle-matrix composite material. A shank may be attached directly to the bit body.04-28-2011
20110142707METHODS OF FORMING EARTH BORING ROTARY DRILL BITS INCLUDING BIT BODIES HAVING BORON CARBIDE PARTICLES IN ALUMINUM OR ALUMINUM BASED ALLOY MATRIX MATERIALS - Methods of manufacturing rotary drill bits for drilling subterranean formations include forming a plurality of boron carbide particles into a body having a shape corresponding to at least a portion of a bit body of a rotary drill bit, infiltrating a plurality of boron carbide particles with a molten aluminum or aluminum-based material, and cooling the molten aluminum or aluminum-based material to form a solid matrix material surrounding the boron carbide particles. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.06-16-2011

Patent applications by Heeman Choe, Seoul KR

Ilhwan Choe, Seoul KR

Patent application numberDescriptionPublished
20100217350Wireless Electrical Stimulating Device for Living Body - A wireless electrical stimulating device for living body comprises a light source unit for irradiating an optical signal; a light source control unit for controlling the optical signal irradiated from the light source unit; and an electrical stimulating unit for converting the optical signal received from the light source unit into an electrical signal to generate electrical stimulation. In the wireless electrical stimulating device for living body, the electrical stimulating unit comprises a battery for supplying current; an optical switch for detecting the optical signal irradiated from the light source unit to switch current supplied from the battery; and a stimulating electrode for providing the current switched by the optical switch to a living body.08-26-2010

Il Hwan Choe, Seoul KR

Patent application numberDescriptionPublished
20100217351APPARATUS FOR STIMULATING LIVING BODY - Disclosed is an apparatus for stimulating living body including a light source unit which irradiates an optical signal for generating an electrical signal; a photovoltaic cell unit which generates an electrical signal using a received optical signal; and an electrode unit which stimulates living body using the electrical signal, wherein the photovoltaic cell unit and the electrode unit are implanted in the living body. The apparatus for stimulating living body may be manufactured in a flexible form, so that it may extend the range of choice for site to be implanted for the apparatus. Further, the adoption of the photovoltaic cell unit avoids the need of surgical operation for the change of battery.08-26-2010

Jeehyun Choe, Seoul KR

Patent application numberDescriptionPublished
20110292174METHOD AND APPARATUS FOR PROCESSING AND RECEIVING DIGITAL BROADCAST SIGNAL FOR 3-DIMENSIONAL SUBTITLE - The disclosed method for processing a digital broadcast signal including a 3-dimensional, 3D, content comprises encoding 3D video data for the 3D content, the 3D video data including a left picture for a left view and a right picture for a right view for a 3D image, generating signaling data including a subtitle segment having information for signaling 3D subtitles for the 3D content, and transmitting the digital broadcast signal including the encoded 3D video data and generated signaling data.12-01-2011
20120044324METHOD FOR PROVIDING 3D VIDEO IN A 3DTV - A broadcast receiver and a 3D video data processing method thereof are disclosed herein. a 3D video data processing method of a broadcast receiver according to an embodiment of the present invention includes receiving, by a receiving unit, a broadcast signal including 3D video data and 3D complementary video information, wherein the 3D video data include half-resolution base video data and complementary video data for configuring a full-resolution image; parsing, by 3D video information processing unit, a 3D complementary video information; decoding, by a base video decoder, the half-resolution base video data; decoding, by a complementary video decoder, the complementary video data for configuring a full-resolution image; acquiring and storing by a Program and System Information Protocol (PSIP) processor 3D complementary video information through 3D complementary video descriptor in Event Information Table (EIT); and combining and formatting, by an output formatter, the base video data and the complementary video data using the 3D complementary video information, thereby outputting a full-resolution 3D image.02-23-2012

Jee Hyun Choe, Seoul KR

Patent application numberDescriptionPublished
20110267426APPARATUS OF PROCESSING AN IMAGE AND A METHOD OF PROCESSING THEREOF - The disclosure is disclosed an apparatus of processing an image and a method thereof. According to the present invention, the method of transmitting a broadcast signal for 3-dimensional, 3D, service, may include encoding video data for a 3D service into a stream, generating first service information including a first descriptor including first information for specifying that a type of the stream is a video stream and second information for specifying a type of a component included in the video stream is a 3D video component and transmitting a broadcast signal including the encoded stream and the generated service information.11-03-2011
20110268196APPARATUS OF PROCESSING AN IMAGE AND A METHOD OF PROCESSING THEREOF - The disclosure is disclosed an apparatus of processing an image and a method thereof. According to the present invention, the method of transmitting a broadcast signal for a 3-dimensional, 3D, service, the method may include encoding video data for a 3D service into a stream and transmitting a broadcast signal including the encoded stream and service information for signaling the 3D service, wherein the service information comprises a first descriptor includes first information for specifying that a type of the stream is a video stream and second information for specifying a type of a component included in the video stream is a 3D video component, and wherein the first and second information including values for indicating presence and attribute of subtitles of the 3D service.11-03-2011
20120069146METHOD AND APPARATUS FOR PROCESSING A BROADCAST SIGNAL FOR 3D BROADCAST SERVICE - The disclosed method for processing a broadcast signal for 3D (3-Dimensional) broadcast service comprises encoding 2D (2-Dimensional) video stream including a 2D video frame, encoding depth information including depth of a 3D image relative to a plane of a display, encoding signaling information for signaling the encoded 2D video stream and the depth information, wherein the signaling information includes a 3D service location descriptor including codec type information specifying encoding type of the encoded depth information, generating the broadcast signal including the encoded 2D video stream, depth information and signaling information, and transmitting the generated broadcast signal.03-22-2012

Jeong Ok Choe, Seoul KR

Patent application numberDescriptionPublished
20110131112METHOD OF PROVIDING CUSTOMIZED INFORMATION OF COMMODITY FOR ON-LINE SHOPPING MALL USERS - Disclosed is a method of providing customized product information. The method includes maintaining a basic index database for recording basic index data associated with a plurality of users for each product model, extracting the basic index data of the user corresponding to a predetermined classification standard from the basic index database, generating point information associated with each product model by calculating the extracted basic index data, and displaying each product model on a predetermined webpage according to the generated point information.06-02-2011

Jin-Woo Choe, Seoul KR

Patent application numberDescriptionPublished
20080198906APPARATUS AND METHOD FOR INCREASING CELL CAPACITY THROUGH OPTIONAL SIGNAL COMBINING BETWEEN RELAY STATIONS IN A CELLULAR SYSTEM USING WIRED RELAY STATIONS - A method, apparatus and system for increasing cell capacity through optional signal combining between Relay Stations (RSs) in a cellular system using wired RSs is disclosed. The method includes receiving, by a Base Station (BS), an average Carrier-to-Interference ratio (C/I) value of transmission signals from Mobile Stations (MSs) located inside each coverage area, being fed back from the RSs or the MSs in its corresponding cell; classifying the MSs into two groups according to the C/I value; performing resource allocation satisfying a minimum data rate from a corresponding RS, for MSs belonging to a group having a C/I value greater than a preset threshold Γ among the classified groups; performing resource allocation by applying an optional signal combining scheme taking into account two RSs having a highest C/I value, for MSs belonging to a group having a C/I value below the threshold among the classified groups; and allocating all unallocated subchannels of each individual RS in an order of an MS having a high C/I value among MSs of a corresponding RS until there is no more unallocated subchannel of each RS.08-21-2008
20080205336METHOD AND APPARATUS FOR JOINT SCHEDULING TO INCREASE FREQUENCY EFFICIENCY AND FAIRNESS IN A MULTI-CHANNEL DISTRIBUTED ANTENNA SYSTEM USING FREQUENCY REUSE AND COMMON POWER CONTROL - A joint scheduling apparatus and method for increasing frequency efficiency and fairness in a multi-channel distributed antenna system using frequency reuse and common control power. One of a Base Station (BS) or Relay Station (RS) are selected to transmit packets to a Mobile Station (MSs), taking into account Quality of Service (QoS) in one of a BS and an RS and grouped into packet groups. The packets are selected from the packet groups, links corresponding to the packets are grouped into a link group, a joint power control is performed on the link group, link elimination and link addition are performed for the link group until optimal solutions are achieved for the links group, channels are allocated to the links when the optimal solutions are achieved for the links, and the status of a user queue is updated.08-28-2008
20090017835SIGNAL COMBINING APPARATUS SATISFYING MAXIMUM TRANSMISSION CAPACITY IN CELLULAR SYSTEM EMPLOYING DISTRIBUTED ANTENNAS AND RESOURCE ALLOCATION METHOD USING THE SAME - Disclosed is a signal combining apparatus and a resource allocation method using the same in a cellular system using distributed antennas. The resource allocation method includes detecting a channel transmission capacity when a signal is transmitted from a single Relay Station (RS) to a Mobile Station (MS), by a Base Station (BS), detecting a channel transmission capacity when transmitting a signal produced by using signal combining by two or more RSs to the MS, by the BS, selecting a channel transmission capacity with a larger gain between the detected channel transmission capacity of the single RS and the detected channel transmission capacity of the two or more RSs, by the BS; and selecting the signal transmitted by the single RS or the signal produced by using the signal combining by the two or more RSs having the selected channel transmission capacity with the larger gain, and then transmitting the selected signal to the MS.01-15-2009
20090135778Method and apparatus for scheduling in cellular system using cable relay station - A method for scheduling in a cellular system using a relay station (RS) through an inter-antenna cooperative transmission technology based on pre-cooperation information according to each channel in a cellular system using a cable RS in order to increase the throughput of the entire system. The steps include classifying all mobile stations (MSs) in a corresponding cell based into Cooperative Transmission (CT) MSs for cooperative transmission and Single Transmission (ST) MSs for to each channel; mapping channel-by-channel channel capacities of the CT MSs and ST MSs classified according to each channel, selecting a channel with a highest priority, and receiving a request message from a corresponding MS according to whether the capacity of the selected channel satisfies preset CT criteria and selecting an MS having a metric value of a highest priority according to a corresponding scheduling algorithm, from among multiple requesting MSs.05-28-2009

Patent applications by Jin-Woo Choe, Seoul KR

Joon Yeong Choe, Seoul KR

Patent application numberDescriptionPublished
20120110501MOBILE TERMINAL AND SCREEN CHANGE CONTROL METHOD BASED ON INPUT SIGNALS FOR THE SAME - A screen change control method based on input signals and a mobile terminal supporting the same are disclosed. The mobile terminal includes a display panel for outputting a screen assigned to a user function, and a control unit for collecting screen ratio information based on at least one of a proportion of a current screen on the display panel to a full screen assigned to the user function and a ratio of enlargement or reduction by zooming, and for automatically adjusting an amount of screen changes for an input signal according to the screen ratio information.05-03-2012

June Choe, Seoul KR

Patent application numberDescriptionPublished
20100227640Mobile terminal and operation control method thereof - A method of controlling a mobile terminal, and which includes receiving an blow signal corresponding to a blowing action into a microphone of the mobile terminal, and generating at least one of a visual effect and a vibration effect based on characteristics of the blow signal.09-09-2010

Kang-Youn Choe, Seoul KR

Patent application numberDescriptionPublished
20110259236WHEEL-TYPE ULTRA HIGH SPEED RAILWAY SYSTEM - The wheel-type high-speed railway system includes rails provided on a railroad track and configured such that wheels provided in a bogie of a vehicle come into contact with them, a support provided on a tread surface of a railroad track between the rails, a repulsive Linear Synchronous Motor (LSM) provided between the bogie and the support and configured to improve traveling performance by reducing axle load in a high-speed region, first and second steel plates mounted on both sides of the support in inclined positions, and first and second attractive Dynamic Motion Control (DMC) magnets mounted on the bogie of the vehicle in inclined positions to correspond to the first and second steel plates, and configured to generate attractive force.10-27-2011

Kwang-Chol Choe, Seoul KR

Patent application numberDescriptionPublished
20080285346Decoder, memory system, and physical position converting method thereof - A decoder, a memory system, and a physical position converting method thereof may detect whether an address count of an input address is equal to or greater than a predetermined value. A physical position of a semiconductor memory device corresponding to the input address may be converted if the address count is equal to or greater than the predetermined value.11-20-2008
20100103952Method, device, and system for data communication with preamble for reduced switching noise - A data communication device or system includes a preamble unit and a data interface. The preamble unit generates or detects a first preamble having a first length for a first data line, and generates or detects a second preamble having a second length for a second data line. The first length is different from the second length, and data on the first and second data lines form parallel data. The data interface communicates a first data with the first preamble via the first data line and communicates a second data with the second preamble via the second data line. The respective length and/or respective pattern of each preamble are adjustable and/or programmable.04-29-2010
20110019049PHOTO DETECTING APPARATUS AND UNIT PIXEL THEREOF - A unit pixel of a photo detecting apparatus includes a photogate, a transfer gate and a floating diffusion region. The photogate includes a junction gate extending in a first direction and a plurality of finger gates extending from the junction gate in a second direction substantially perpendicular to the first direction. The transfer gate is formed adjacent to the junction gate. The floating diffusion region is formed adjacent to the first transfer gate.01-27-2011
20110156934METHOD AND APPARATUS FOR PARALLEL DATA INTERFACING USING COMBINED CODING AND RECORDING MEDIUM THEREFOR - A semiconductor device may include a coding lookup table unit including a plurality of coding lookup tables each of which is selected by a respectively selection signal, and a selection unit configured to receive one of N-bit parallel data and extract respective encoded data corresponding to the selection signal and to which the N-bit parallel data is mapped from the coding lookup table unit, and encoded data and extract respective N-bit parallel data corresponding to the selection signal and to which the encoded data is mapped from the coding lookup table unit, wherein N is 2 or an integer greater than 2, and wherein the coding lookup tables respectively store a plurality of coded data patterns that respectively correspond to patterns of the N-bit parallel data and are random temporally and spatially.06-30-2011
20110170620Method, Device, and System for Data Communication with Preamble for Reduced Switching Noise - A data communication device or system includes a preamble unit and a data interface. The preamble unit generates or detects a first preamble having a first length for a first data line, and generates or detects a second preamble having a second length for a second data line. The first length is different from the second length, and data on the first and second data lines form parallel data. The data interface communicates a first data with the first preamble via the first data line and communicates a second data with the second preamble via the second data line. The respective length and/or respective pattern of each preamble are adjustable and/or programmable.07-14-2011

Patent applications by Kwang-Chol Choe, Seoul KR

Min Wook Choe, Seoul KR

Patent application numberDescriptionPublished
20100004033MOBILE TERMINAL USING PROXIMITY SENSOR AND METHOD OF CONTROLLING THE MOBILE TERMINAL - A mobile terminal and a method of controlling the mobile terminal are provided. The mobile terminal may generate a haptic effect whose intensity or pattern corresponds to the type and importance of an event occurred therein. Therefore, it is possible for a user to easily identify the event based on the haptic effect. Since the mobile terminal generates a haptic effect in response to a command input thereto by the user, it is possible to prevent a command from being accidently input to the mobile terminal.01-07-2010

Mun-Son Choe, Seoul KR

Patent application numberDescriptionPublished
20110197790MODIFIED SULFUR BINDER AND THE FABRICATION METHOD THEREOF, HYDRAULIC MODIFIED SULFUR MATERIAL COMPOSITION AND THE FABRICATION METHOD THEREOF OR COMBUSTIBLE MODIFIED SULFUR MATERIAL COMPOSITION AND THE FABRICATION METHOD THEREOF CONTAINING THE MODIFIED SULFUR BINDER - A modified sulfur binder capable of implementing a physical property of being re-melted at a temperature less than 100° C., by mixing sulfur with a heterocyclicamine or alkylamine-based modifier and a dicyclopentadiene-based modifier, and a fabrication method thereof. A hydraulic modified sulfur material composition capable of being mixed with water by adding a surfactant to the modified sulfur binder, and obtained by mixing aggregate and a hydraulic material to the modified sulfur binder, and a fabrication method thereof. A hydraulic modified sulfur material obtained by molding the hydraulic modified sulfur material composition, and a fabrication method thereof. A combustible modified sulfur material composition obtained by adding aggregate to the modified sulfur binder, and by selectively adding a filler to the modified sulfur binder, and a fabrication method thereof. A combustible modified sulfur material obtained by molding the combustible modified sulfur material composition, and a fabrication method thereof.08-18-2011

Seung Ah Choe, Seoul KR

Patent application numberDescriptionPublished
20100137577ADENOSINE DERIVATIVES, METHOD FOR THE SYNTHESIS THEREOF, AND THE PHARMACEUTICAL COMPOSITIONS FOR THE PREVENTION AND TREATMENT OF THE INFLAMMATORY DISEASES CONTAINING THE SAME AS AN ACTIVE INGREDIENT - Disclosed are adenosine derivatives, methods for the synthesis thereof, and pharmaceutical compositions for the prevention and treatment of inflammatory diseases, comprising the same as an active ingredient. The adenosine derivatives have high binding affinity and selectivity for adenosine receptors, especially for A3 adenosine receptors and act as A3 adenosine receptor antagonists, and exhibit anti-inflammatory activity. Thus, the adenosine derivatives are useful in the prevention and treatment of inflammatory diseases.06-03-2010

Seung-In Choe, Seoul KR

Patent application numberDescriptionPublished
20120070517PHARMACEUTICAL COMPOSITION CONTAINING HERBAL EXTRACT FOR PREVENTION OR TREATMENT OF NEPHRITIS - The present invention relates to a novel use of herbal extracts in a pharmaceutical composition for prevention and treatment of nephritis and, more particularly, to a pharmaceutical composition and a health functional food for prevention and/or treatment of nephritis that contains at least one herbal extract selected from the group consisting of a Crataegi Fructus extract, a Cinnamomi Cortex extract, a 03-22-2012

Sin Kyu Choe, Seoul KR

Patent application numberDescriptionPublished
20120088433TOY SPINNING TOP - Disclosed is a toy spinning top. The top includes a rotatable blade, a driving force generator coupled with the blade and generating a driving force to rotate the blade, and an attack ring detachably coupled with the blade to idly rotate against the blade. The toy top does not generate fragments when colliding with an adjacent top or other objects, and does not cause injury to a human body even if the toy top collides with the human body, so that the top can be used for safe play.04-12-2012

Sug-Bong Choe, Seoul KR

Patent application numberDescriptionPublished
20100085659Information storage devices using magnetic domain wall motion - An information storage device includes a magnetic track and a pinning element for pinning the magnetic domain wall. The magnetic track includes a plurality of magnetic domains and a magnetic domain wall arranged between each pair of adjacent magnetic domains. The pinning element is configured to apply a magnetic field to pin the magnetic domain wall to the magnetic track. The magnetic field may have the same magnetization direction as the magnetic domain wall.04-08-2010

Sunghwa Choe, Seoul KR

Patent application numberDescriptionPublished
20090025100DWF12 and Mutants Thereof - DWARF12 (DWF12) sequences, mutants and methods of using the same are disclosed. The dwf12 polynucleotides can be used in the production of transgenic plants which display at least one dwf12 mutant phenotype, so that the resulting plants have altered biochemistry, structure or morphology.01-22-2009

Sunghwa Choe, Seoul SK

Patent application numberDescriptionPublished
20100205694DWF4 Polynucleotides, Polypeptides and Uses Thereof - The present invention relates to novel, polynucleotides isolated from dwarf plants. The dwf4 polynucleotides that encode all, or a portion of, a DWF4 polypeptide, a cytochrome P450 enzyme that mediates multiple steps in synthesis of brassinosteriods. The present invention also relates to isolated polynucleotides that encode regulatory regions of dwf4. Uses of the dwf4 polypeptides and polynucleotides are also disclosed.08-12-2010

Sung-Sik Choe, Seoul KR

Patent application numberDescriptionPublished
20100285156COMPOSITION FOR PREVENTING AND TREATING METABOLIC DISEASES COMPRISING THE EXTRACT OF LYSIMACHIAE FOENUM-GRAECI HERBA - Disclosed are raw material, functional foods, and herb medicines for preventing and treating metabolic diseases, which comprise a Lysimachiae Foenum-Graeci Herba extract as an effective ingredient. The Lysimachiae Foenum-Graeci Herba extract have an activity of reducing blood glucose levels, triglycerides and cholesterol levels, AST and ALT levels, and fat in the liver, and thus can be effectively used as a hepatic protector and a remedy for preventing and treating various metabolic diseases including diabetes, high blood pressure, fatty liver, cardiovascular diseases, and hyperlipidemia.11-11-2010

Suuk Choe, Seoul KR

Patent application numberDescriptionPublished
20110264305ROBOT CLEANER AND REMOTE MONITORING SYSTEM USING THE SAME - A robot cleaner has a camera to generate an image of a cleaning area, a controller to prepare a cleaning map based on the image and to drive a robot cleaner, and a communicator to transmit the image and cleaning map to an external device and to receive a control command from the external device. The image and map may be transmitted over a local or wide area network, and the external device may be a computer, television, smart phone, portable phone, or other type of wireless access device.10-27-2011
20120109376CLEANER AND CONTROLLING METHOD OF THE SAME - Disclosed are a robot cleaner and a method for controlling the same. The robot cleaner may prevent repeated executions of a cleaning operation by recognizing its position through an absolute position recognition unit, in a case that the cleaning operation is performed again after being forcibly stopped due to arbitrary causes. And, the robot cleaner may solve a position recognition error by a relative position recognition unit with using an image detection unit, and may effectively perform a cleaning operation based on a similarity between an image detected by the image detection unit and an image with respect to a cleaning region. This may improve the system efficiency and stability, and enhance a user's convenience.05-03-2012

Su Uk Choe, Seoul KR

Patent application numberDescriptionPublished
20100228394MOBILE ROBOT AND CONTROLLING METHOD OF THE SAME - Disclosed is a mobile robot and a controlling method of the same. An entire movement region is divided into a plurality of regions, and a partial map is gradually made by using feature points of a plurality of images of the divided regions. Then, the map is compensated into a closed curved line, thereby making an entire map. Furthermore, when the mobile robot is positioned at a boundary of neighboring regions of the cleaning region, the boundary where a closed curved line is formed, the mobile robot compensates for its position based on a matching result between feature points included in the map, and feature points extracted from images captured during a cleaning process.09-09-2010
20120019627MOBILE ROBOT WITH SINGLE CAMERA AND METHOD FOR RECOGNIZING 3D SURROUNDINGS OF THE SAME - Disclosed are a mobile robot with a single camera capable of performing a cleaning process with respect to surroundings, and capable of more precisely making a 3D map of the surroundings including a plurality of feature points, and a method for recognizing 3D surroundings of the same. According to the method, images of the surroundings are captured, and a preset number of particles with respect to feature points of a first image are projected to a second image based on matching information of feature points extracted from the two images sequentially captured, thereby extracting 3D information of the surroundings.01-26-2012

Won-Hee Choe, Seoul KR

Patent application numberDescriptionPublished
20110129165IMAGE PROCESSING APPARATUS AND METHOD - An image processing apparatus and image processing method capable of providing a high-resolution image for a desired position by use of light field data are provided. The image processing apparatus may determine a position of a portion of light field data among light field data corresponding to a scene, according to a desired focusing position, generate a refocusing first image by use of the position determined portion of light field data, generate a high-resolution image having a predetermined setting ratio relative to the refocusing first image, determine a ratio for local synthesis between the high-resolution image and an enlarged image of the refocusing first image by use of a similarity with respect to the position determined portion of light field data, and generate a synthesized image by synthesizing the high-resolution image and the enlarged image of the refocusing first image according to the local synthesis ratio.06-02-2011
20110175983APPARATUS AND METHOD FOR OBTAINING THREE-DIMENSIONAL (3D) IMAGE - An apparatus and method for obtaining a three-dimensional image. A first multi-view image may be generated using patterned light of infrared light, and a second multi-view image may be generated using non-patterned light of visible light. A first depth image may be obtained from the first multi-view image, and a second depth image may be obtained from the second multi-view image. Then, stereo matching may be performed on the first depth image and the second depth image to generate a final depth image.07-21-2011
20110176024Image Fusion Apparatus and Method - Provided are an image fusion apparatus and method for combining multi-exposure images. The image fusion apparatus and method may generate a sharp high-resolution high dynamic image while fully representing detail in an over-exposed region and an under-exposed region of the image without contrast degradation.07-21-2011
20110176729APPARATUS AND METHOD FOR GENERATING HIGH SENSITIVITY IMAGES IN DARK ENVIRONMENT - There is provided a method of and an apparatus for generating high sensitivity images in a low light level environment, the method including correcting an image acquired through short-time exposure in a low light level environment to an image corresponding to a reference exposure time defined for the low light level environment, the corrected image including a plurality of channels, detecting respective black levels for each of the channels, the detecting of the respective black levels being based on a black level intensity for the reference exposure time, adjusting the respective black levels for each of the channels of the corrected image to respective target black levels for each of the channels, and aligning a value of each of the channels using the respective target black levels.07-21-2011

Yeon Ho Choe, Seoul KR

Patent application numberDescriptionPublished
20110114361HIGH CONDUCTIVITY WIRE AND METHOD OF MANUFACTURING THE SAME - A high conductivity wire and a method of manufacturing the same are provided. The high conductivity wire includes three or more conducting wires. In the method, conducting wires cross each other and are coiled regularly and three dimensionally. The conducting wires are coated with an insulating material.05-19-2011

Young-Ho Choe, Seoul KR

Patent application numberDescriptionPublished
20090071539SOLAR CELL MANUFACTURED USING AMORPHOUS AND NANOCRYSTALLINE SILICON COMPOSITE THIN FILM, AND PROCESS FOR MANUFACTURING THE SAME - Disclosed are a solar cell manufactured using a composite thin film comprising amorphous silicon and nanocrystalline silicon, a method of manufacturing the solar cell, and a composition for the composite thin film used in manufacturing the solar cell. More particularly, a silicon semiconductor layer in the solar cell is fabricated by using the composite thin film comprising the amorphous silicon and the nanocrystalline silicon, the composite thin film being formed by dispersing nanoparticles of the crystalline silicon in a liquid silicon precursor and modifying them.03-19-2009
20100319776Ink for forming thin film of solar cells and method for preparing the same, CIGS thin film solar cell using the same and manufacturing method thereof - Disclosed are an ink containing nanoparticles for formation of thin film of a solar cell and its preparation method, CIGS thin film solar cell having at least one light absorption layer formed by coating or printing the above ink containing nanoparticles on a rear electrode, and a process for manufacturing the same. More particularly, the above absorption layer comprises Cu, In, Ga and Se elements as constitutional ingredients thereof and such elements exist in the light absorption layer by coating or printing an ink that contains Cu12-23-2010
20120100661INK FOR FORMING THIN FILM OF SOLAR CELLS AND METHOD FOR PREPARING THE SAME, CIGS THIN FILM SOLAR CELL USING THE SAME AND MANUFACTURING METHOD THEREOF - Discussed are an ink containing nanoparticles for formation of thin film of a solar cell and its preparation method, CIGS thin film solar cell having at least one light absorption layer formed by coating or printing the above ink containing nanoparticles on a rear electrode, and a process for manufacturing the same. More particularly, the above absorption layer includes Cu, In, Ga and Se elements as constitutional ingredients thereof and such elements exist in the light absorption layer by coating or printing an ink that contains Cu04-26-2012

Patent applications by Young-Ho Choe, Seoul KR