Chang, Seoul
Boick Chang, Seoul KR
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20100135499 | SHARED KEY TRANSMISSION APPARATUS, AUTOMATIC TELLER MACHINE, AUTOMATIC TELLER SYSTEM AND METHOD OF CONTROLLING THE AUTOMATIC TELLER MACHINE - Provided are a shared key transmission apparatus, an automatic teller machine (ATM), and a controlling method thereof. The shared key transmission apparatus may include: a reception unit receiving, from the ATM, a first cryptogram where a random number is encrypted; a description unit restoring the random number from the first cryptogram; an encryption unit encrypting the shared key using the restored random number; and a transmission unit transmitting the encrypted shared key to the ATM. The ATM may include: an encryption unit generating a random number and encrypting the random number to generate a first cryptogram; a transmission unit transmitting the first cryptogram to the shared key transmission apparatus; a reception unit receiving, from the shared key transmission apparatus, a shared key that is encrypted using the restored random number; and a decryption unit restoring the shared key from the encrypted shared key using the generated random number. | 06-03-2010 |
Chang-Ryul Chang, Seoul KR
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20090061268 | Hydrogen generating apparatus and fuel cell power generation system - A hydrogen generating apparatus according to an embodiment of the invention may include an electrolyte bath, which contains an electrolyte solution, and in an inside surface of which a first groove and a second groove are formed; a first electrode, which is coupled to the first groove with a predetermined distance from either end of the surface of the electrolyte bath, and which is configured to generate electrons; and a second electrode, which is coupled to the second groove with a predetermined distance from either end of the surface of the electrolyte bath, and which is configured to generate hydrogen using the electrons and the electrolyte solution. By using this hydrogen generating apparatus, the volume for holding the fuel can be increased, the gaps between electrodes can be reduced, and the circulation of water can be facilitated to increase the duration of the reactions. | 03-05-2009 |
Chansam Chang, Seoul KR
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20110151642 | SEMICONDUCTOR DEVICE INCLUDING HIGH VOLTAGE AND LOW VOLTAGE MOS DEVICES - Methods and devices for forming both high-voltage and low-voltage transistors on a common substrate using a reduced number of processing steps are disclosed. An exemplary method includes forming at least a first high-voltage transistor well and a first low-voltage transistor well on a common substrate separated by an isolation structure extending a first depth into the substrate, using a first mask and first implantation process to simultaneously implant a doping material of a first conductivity type into a channel region of the low-voltage transistor well and a drain region for the high-voltage transistor well. | 06-23-2011 |
Chin Hyuk Chang, Seoul KR
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20110291305 | HUMIDIFIER - Disclosed herein is a humidifier. The humidifier includes a rear casing, a front casing placed in front of the rear casing and having an opening formed on its front side, a fan housing having an air intake unit formed on its front side, wherein an air blower unit is formed on one side of a circumference part of the fan housing, a humidification filter placed in front of the air intake unit, and a water tank placed on a side of the humidification filter. The fan housing has a partition wall projected therefrom between the humidification filter and the water tank, and the partition wall partitions a front side of the fan housing into a space through which air passes and a space where the water tank is placed. | 12-01-2011 |
20120064817 | HUMIDIFIER - A wall mount-type evaporative humidifier according to an embodiment of the present invention includes a main body mounted on a wall and having an air intake port and an air blower port formed therein, a ventilator disposed within the main body and configured to suck air into the air intake port and blow the air toward the air blower port, a water guide disposed within the main body and having a water channel formed therein, a water tank configured to contain water in order to supply the water to the water guide and seated in the water guide, and a humidification filter configured to absorb water of the water guide and to supply moisture to air flowing toward the ventilator and seated in the water guide. The present invention is advantageous in that it can realize a humidifying effect and a cooling effect at the same time, has the high utilization of space, and can control the humidity of the entire room rapidly and uniformly. | 03-15-2012 |
Chi-Tack Chang, Seoul KR
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20090033959 | IMAGE FORMING APPARATUS AND STORAGE MEDIUM CONTROL METHOD THEREOF - An image forming apparatus includes an interface which is connected with a storage medium to store printing data therein, an image forming unit to perform an image forming operation with respect to the printing data, a display unit, and a controller to control displaying whether to remove the storage medium depending on the image forming operation with respect to the printing data stored in the storage medium. | 02-05-2009 |
20140013208 | Device Control Method And System Using XML Document - A device control method and system that sets a control setting through a user interface generated by using an XML (eXtensible Markup Language) document is provided. Operation control of a device is set through a user interface that is generated using an XML (eXtensible Markup Language) document. A user interface is generated for control settings of a device based on received first information, second information corresponding to control setting values is input through the user interface, and the second information is transmitted to the device and corresponding control settings of the device are set. Accordingly, operation control of the device can be controlled through a user interface by using a single standardized document regardless of the type of device. | 01-09-2014 |
Chul-Sang Chang, Seoul KR
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20110159892 | APPARATUS AND METHOD FOR PROVIDING STATION INFORMATION OF TRANSPORTATION IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for identifying if station information of a public transportation is information corresponding to a destination by generating and broadcasting guide information including station information to a plurality of portable terminals in a mobile communication system are provided. The apparatus includes a position information system for generating and broadcasting information on the next station, and a portable terminal for receiving the broadcasted guide information and determining if the next station is a station corresponding to a destination. | 06-30-2011 |
20110216076 | APPARATUS AND METHOD FOR PROVIDING ANIMATION EFFECT IN PORTABLE TERMINAL - An apparatus and method for providing a highly-realistic animation effect in a portable terminal. An apparatus for providing an animation effect in a portable terminal includes an animation processing unit increasing the realism of an animation by performing a composite animation scheme that continuously processes a key frame animation, which is represented in a fixed pattern, and a physical animation that is realistically represented according to peripheral environments. The apparatus also includes a display unit displaying an animation played by the animation processing unit | 09-08-2011 |
20130300733 | METHOD FOR PROCESSING IMAGE AND IMAGE PROCESSING APPARATUS THEREOF - An image processing method to remove aliasing and an image processing apparatus thereof are provided. The image processing method includes receiving data information of a polygonal image, determining a position of an interpolation vertex on an exterior of vertexes of the polygonal image using the data information of the polygonal image, interpolating a space between the polygonal image and a polygon constructed by the interpolating vertex, and outputting an interpolated polygonal image according to the interpolated space. Accordingly, when complex polygons are displayed or the image size changes, the aliasing can be removed. Further, because the interpolating process is applied to primitives instead of a whole image to overcome the aliasing, the amount of calculations decreases. | 11-14-2013 |
Do-Hoon Chang, Seoul KR
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20090036587 | Propylene Resin Composition With Flame Retardance And Abrasion Resistance - Disclosed is a polypropylene resin composition with flame retardance and abrasion resistance. The polypropylene resin composition according to the present invention includes 20 to 200 parts by weight of an inorganic flame retardant; and 0.1 to 10 parts by weight of at least one additive, based on 100 parts by weight of a base resin comprising 30 to 90% by weight of polypropylene copolymer resin and 10 to 70% by weight of polyolefin alpha copolymer resin. The polypropylene resin composition according to the present invention can be used for industrial cables with potent endurance since it includes an inorganic flame retardant to show flame retardance and it can remove or reduce a whitening phenomenon and show a significantly improved abrasion resistance without deteriorating moldability or mechanical property even when the contents of the composition are varied to enhance abrasion resistance. | 02-05-2009 |
Doo Yi Chang, Seoul KR
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20080220745 | MOVING NOTIFICATION MESSAGE - A computer program product, method and a terminal for receiving and processing a notification message for notifying a second terminal of an arrival of a multimedia message addressed to a Subscriber Identity Module (SIM) of a first terminal installed in the second terminal and storing the received notification message in the SIM card. | 09-11-2008 |
20100151880 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal which transfers or receives data, including location information, in various ways, and a method of transferring or receiving data using the same. | 06-17-2010 |
20120220316 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal which transfers or receives data, including location information, in various ways, and a method of transferring or receiving data using the same. | 08-30-2012 |
20130130721 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal which transfers or receives data, including location information, in various ways, and a method of transferring or receiving data using the same. According to an embodiment, the mobile terminal includes a display including a touch screen: a communication unit; a location information unit configured to manage at least one location information including a specific location information; and a controller configured to: obtain the specific location information in response to a first user input to the touch screen, display the obtained specific location information on the display in the form of a text, and transfer together the message and the obtained specific location information through the communication unit in response to a second user input to the touch screen. | 05-23-2013 |
20130130722 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal which transfers or receives data, including location information, in various ways, and a method of transferring or receiving data using the same. According to an embodiment, the mobile terminal includes a display; a communication unit; and a controller configured to receive together the message and a specific location information through the communication unit from a communication terminal, wherein the specific location information is location information excluding a current location of the communication terminal. The controller is further configured to display the message and the specific location information separately on the display such that the message and the specific location information can be identified separately from each other by a user of the mobile terminal. | 05-23-2013 |
20130237253 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal which transfers or receives data, including location information, in various ways, and a method of transferring or receiving data using the same. | 09-12-2013 |
20130252646 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal which transfers or receives data, including location information, in various ways, and a method of transferring or receiving data using the same. | 09-26-2013 |
20140235281 | MOBILE TERMINAL AND METHOD OF TRANSFERRING OR RECEIVING DATA USING THE SAME - The present invention relates to a mobile terminal including an input unit; a communication unit; a location information unit configured to obtain location information related to the mobile terminal; and a controller configured to: receive a message and a recipient through the input unit, determine a location information transfer mode set for the recipient, receive a message transfer command through the input unit, transfer the message with the location information to the recipient through the communication unit in response to the message transfer command, when the location information transfer mode is a first transfer mode, and transfer the message without the location information to the recipient through the communication unit in response to the message transfer command, when the location information transfer mode set to the recipient is a second transfer mode. | 08-21-2014 |
Duckhyun Chang, Seoul KR
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20100103735 | MEMORY DEVICE AND PROGRAM METHOD THEREOF - Provided are a flash memory system and a driving method thereof. A flash memory device according to an embodiment of the present invention includes a memory cell array including a plurality of memory cells, and a control logic. The control logic performs control for one-bit information to be stored in the plurality of memory cells. The control logic controls storing data in the plurality of memory cells multiple times without an erasion operation. Accordingly, the flash memory device does not execute an erasion operation, increasing an operation speed. | 04-29-2010 |
Duck-Hyun Chang, Seoul KR
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20090164710 | SEMICONDUCTOR MEMORY SYSTEM AND ACCESS METHOD THEREOF - A semiconductor memory system and access method thereof. The semiconductor memory system includes a nonvolatile memory and a memory controller. The nonvolatile memory stores monitoring data in one or more of plural memory cells. The memory controller controls the nonvolatile memory. The memory controller detects the monitoring data and adjusts a bias voltage, which is provided to the plural memory cells, in accordance with a result of the detection. | 06-25-2009 |
Eun Kyu Chang, Seoul KR
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20110136479 | MOBILE TERMINAL AND METHOD OF CONTROLLING THE SAME - A mobile terminal that controls the output of an audio based on contact or approach of an external object and a method of controlling the mobile terminal, are discussed. According to an embodiment, the mobile terminal includes an audio output module configured to output an audio; a sensing unit arranged to sense an object approaching the audio output module; and a controller configured to stop the outputting of the audio, when the sensing unit senses the object approaching the audio output module while the audio is being output through the audio output module. | 06-09-2011 |
Gil Hoon Chang, Seoul KR
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20090209198 | Remote Resource Access Interface Apparatus - A remote resource access interface apparatus is provided. A key input unit has keys for generating input key values. A communication unit transmits a connection establishment request message including screen resolution information to, and receives a connection establishment response message including supportable key information from, a portable device. The communication unit transmits input key information to and receives video information from the portable device after establishing the connection. A pixel information processing unit converts the video information to pixel signals for a video output unit to display as a visual image. A key advisor unit extracts supportable key information from the response message and outputs the supportable key information to the video output unit. The video information is video data adjusted in resolution based on the screen resolution information, and the input key value is mapped to one of key values indicated by the key information of the portable device. | 08-20-2009 |
20120331145 | METHOD FOR PROVIDING AND ACCESSING RESOURCE REMOTELY - A remote resource provision method of a remote resource provision apparatus is disclosed. The remote resource provision apparatus receives software environment information from the remote resource access apparatus, generates sub-software executed by the remote resource access apparatus from main software according to the software environment information, and transmits the generated sub-software to the remote resource access apparatus, receives a first result generated using the sub-software from the remote resource access apparatus, generates a second result from the received first result using the main software, and transmits the generated second result to the remote resource access apparatus. Accordingly, several remote resource access apparatuses can share resources of the remote resource provision apparatus. | 12-27-2012 |
20130050585 | Remote Resource Access Interface Apparatus - A remote resource access interface apparatus is provided. A key input unit has keys for generating input key values. A communication unit transmits a connection establishment request message including screen resolution information to, and receives a connection establishment response message including supportable key information from, a portable device. The communication unit transmits input key information to and receives video information from the portable device after establishing the connection. A pixel information processing unit converts the video information to pixel signals for a video output unit to display as a visual image. A key advisor unit extracts supportable key information from the response message and outputs the supportable key information to the video output unit. The video information is video data adjusted in resolution based on the screen resolution information, and the input key value is mapped to one of key values indicated by the key information of the portable device. | 02-28-2013 |
Hae Rin Chang, Seoul KR
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20120009341 | METHOD FOR MODIFYING THE SURFACE OF A BIOINERT MATERIAL - Provided is a method for modifying the surface of a bioinert material, the method including preparing a base material composed of a bioinert material; and spraying a bioactive powder onto the bioinert base material through a spray nozzle using a high pressure carrier gas to form a bioactive layer on the base material. The surface modification method enables mass production, at low cost, of new biomaterials having the advantages of both a coating substance and a body to be coated, by applying a bioactive material to various bodies to be coated through a cold spray method. | 01-12-2012 |
Hang Bae Chang, Seoul KR
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20080229041 | Electrical Transmission System in Secret Environment Between Virtual Disks and Electrical Transmission Method Thereof - The present invention relates to a secure transmission system and secure transmission method that securely transmit data stored in a computer to different computers via a Local Area Network or the Internet. The secure transmission system includes a virtual disk, configured to allow only an authorized application program module to gain an access and read, write and edit information data; and a secure communication application module including a user information generation means for generating intrinsic user information at the time of setting up the virtual disk, a user information storage means for storing the generated user information, an outgoing file management means for searching the virtual disk for information data to be sent and compressing the found information data, generating the header information of the information data in which user information about a sender and/or a recipient is contained, and adding the generated header information to the user information, an incoming file management means for reading the header information of received information data, decompressing compressed information data, and storing the decompressed information data on the virtual disk, and a file security means for encrypting and decrypting information data to be sent or received information data. | 09-18-2008 |
20080313370 | Guarding Method For Input Data By Usb Keyboard and Guarding System - The present invention relates generally to a security system and a security method using the same, and, more particularly, to a security system and method for a keyboard which communicates through a USB port. The security method includes the USB filter activation step; the input data reception step of initially receiving the data input through the USB keyboard by the USB filter; the key input information detection step of detecting key input information generated by key manipulation of a user from the input data; the key input information parsing step of arranging the detected key input information in generation order; the key input information encryption step of encrypting the key input information arranged at the parsing step; the input data deletion step of deleting the input data remaining in a USB bus to disallow an operating system to recognize the input data; and the key input information delivery step of delivering the encrypted key input information to a communication application. | 12-18-2008 |
Hansung Chang, Seoul KR
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20090278533 | THIN FILM 3 AXIS FLUXGATE AND THE IMPLEMENTATION METHOD THEREOF - There is provided a thin film tri-gate fluxgate for detecting a component of a magnetic field in directions of three axes, the thin film tri-gate fluxgate comprising: two first thin film fluxgates of a bar-type disposed on a plane for detecting horizontal components of the magnetic field in direction of dual axis; and a plurality of second thin film fluxgates for detecting a vertical component of the magnetic field, wherein each of the first thin film fluxgates and the plurality of the second thin film fluxgates comprises a drive coil for applying a power, a pickup coil for detecting a voltage and, a magnetic thin film, and wherein the plurality of the second thin film fluxgates are substantially perpendicular to each of the first thin film fluxgates wherein a length of the magnetic thin film of each of the plurality of the second thin film fluxgates is shorter than that of each of the two first thin film fluxgates, and wherein two end portions of each of the plurality of the second thin film fluxgates is wider than a center portion thereof. | 11-12-2009 |
Hyang-Soon Chang, Seoul KR
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20090126285 | Facility Module for Production and Storage of Cell Therapy Product - A facility module is provided for producing and storing a cell therapy product comprising: a Cell Therapy (CT) module one including separately prefabricated units having specific functions and separate entrances and exits so as to minimize contamination, and being capable of producing the cell therapy product, and a Banking of Cell and Tissue (BC) module Two including prefabricated units having specific functions and separate entrances and exits so as to minimize contamination, and being capable of appropriately storing hematopoietic stem cells, bone marrow cells and other cells for a prolonged period. It enables easy and low cost production of the cell therapy product, with sufficient quality to be transplanted into patients, within a short period, and permits clinical application to patients expeditiously. The present invention enables convenient installation and use of such a facility module anywhere adequate space is available, by providing the facility in a prefabricated module composed of specialized units according to function. | 05-21-2009 |
20090325275 | CELL MANIPULATION AND CULTIVATION EQUIPMENTS FOR THE PRODUCTION OF CELL THERAPY PRODUCTS - Cell manipulation and cultivation equipment for the production of cell therapy products has developed for preventing contamination of cells and improving the utility of a space. The equipment includes a room for the production and testing of cell therapy products, the room having an inner space enclosed in all sides and an outer entrance/exit door provided at any one side thereof, an L-shaped partition installed in a position of the room for the production and testing of cell therapy products, the partition having an inner entrance/exit door provided at any one side thereof, and a clean bench device placed inside the partition, the clean bench device including first, second, and third clean benches for preventing contamination of cells and increasing the utility of a space to the maximum extent. The operating of the clean room and clean bench has advantages to prevent contamination and improving the quality and reliability of cell therapy products. | 12-31-2009 |
Hyuk Jae Chang, Seoul KR
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20090035033 | Fusing device and image apparatus having the same - A fusing device comprising: a frame; a cover hinged to the frame, a heating roller mounted in the cover; a first pressing roller to form a first fusing nip through contact with the heating roller; a second pressing roller to form a second fusing nip, through which a printing medium passes, after passing through the first fusing nip; and a first resilient member connected to the frame and the cover, to bias the first and second pressing rollers toward the heating roller. | 02-05-2009 |
Hyung Min Chang, Seoul KR
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20110142154 | SEQUENTIAL TRANSMISSION MULTI-BEAMFORMING METHOD WITH LOW COMPLEXITY USING HADAMARD MATRIX - Provided is a sequential transmission multi-beamforming apparatus and method with a low complexity based on a Hadamard matrix. A simple codebook may be generated based on the Hadamard matrix and thus, a number of weighted-vectors is reduced and a complexity of hardware is decreased. A diversity gain may be maximized based on a spatial diversity processing apparatus and a beamforming weighted vector may be systematically generated. | 06-16-2011 |
20130122933 | APPARATUS AND METHOD FOR PROVIDING COMMUNICATION SERVICES VIA TELEVISION WHITE SPACES - Disclosed herein are an apparatus and method for providing communication services. The apparatus includes a location information acquisition unit, a radio station information acquisition unit, and an offloading unit. The location information acquisition unit acquires information about the current location of the user terminal by sending a location information request message to the user terminal The radio station information acquisition unit requests information about a white space radio station from which the user terminal can receive the communication services by sending the information about the current location of the user terminal to a white space server, and acquires, from the white space server, information about an available white space radio station. The offloading unit sends the information about the available white space radio station to the user terminal, and also sends information about the user terminal to the available white space radio station. | 05-16-2013 |
20130241774 | WIRELESS POSITIONING SERVER USING CLOCK OFFSET CALIBRATION AND WIRELESS POSITIONING METHOD USING THE SAME - A wireless positioning server using clock offset compensation and a wireless positioning method using the same. The wireless positioning server using clock offset compensation estimates a precise position of a tag requiring position information by effectively predicting information regarding a distance between a beacon for performing positioning and the tag requiring position information. An error in the positioning estimation result due to a clock offset is minimized by measuring a relative clock frequency ratio between beacons and by compensating for clock frequencies of the beacons when a distance between a beacon and a tag is estimated. | 09-19-2013 |
Il-Gu Chang, Seoul KR
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20090058828 | ELECTRONIC DEVICE AND METHOD OF OPERATING THE SAME - An electronic device and a method of operating the same are provided. The electronic device includes a touch-sensing module sensing a change in a touch, a processing module determining a display screen layer associated with a touch location, and a screen display module displaying a part of the display screen layer. | 03-05-2009 |
In Soon Chang, Seoul KR
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20120005069 | SYSTEM AND METHOD FOR ESTIMATING PERCEIVED QUALITY OF NEW PRODUCTS - A system and a method are provided, which allow participants to trade virtual stocks corresponding to a plurality of products including at least one new product, and which provide a normalized perceived quality value about each of the products. A plurality of participants is provided with virtual stocks corresponding to the plurality of products and also virtual currency and allowed to trade the plurality of virtual stocks with the virtual currency. The transactions are recorded in a trade log database and analyzed to estimate the perceived quality of the product corresponding to each virtual stock. Accordingly, it is possible to estimate and compare the perceived quality of a new product with that of the existing products, and thus, the price of the new product before launch can be set with increased ease. | 01-05-2012 |
Jae-Ha Chang, Seoul KR
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20110090717 | Two-stage insulated bidirectional DC/DC power converter using a constant duty ratio LLC resonant converter - A two-stage insulated bidirectional DC/DC power converter is disclosed. A two-stage insulated bidirectional DC/DC power converter according to an embodiment of the invention has the characteristic of including: an LLC resonant converter operating at a constant duty ratio; a bidirectional converter joined to a front part of the LLC resonant converter and configured to perform a booster converter function of outputting the input voltage at a consistent input voltage for the LLC resonant converter, and a buck converter function of reducing the voltage by way of the LLC resonant converter and then outputting a consistent voltage; and a bidirectional converter control unit configured to control changes in an input voltage of the bidirectional converter and regulate an output voltage of the LLC resonant converter to thereby maintain a consistent input voltage of the LLC resonant converter, such that the LLC resonant converter operates at a constant duty ratio. | 04-21-2011 |
Jin A. Chang, Seoul KR
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20080252611 | OBJECT SEARCH METHOD AND TERMINAL HAVING OBJECT SEARCH FUNCTION - An object search method, computer program product, and a terminal having an object search function are disclosed. The object search method includes: displaying a list of a plurality of objects including a first object and a second object in a first screen area, and displaying a touch input window for touch input in a second screen area; touching a first position on the touch input window with a pointer and then dragging the pointer to a second position on the touch input window; and moving an object indicator from the first object to the second object on the list as the pointer is dragged from the first position to the second position. Therefore, it is possible to efficiently search for an object. | 10-16-2008 |
20080288867 | MOBILE COMMUNICATION DEVICE AND METHOD OF CONTROLLING THE SAME - A mobile communication device, a computer program product, and a method of controlling the same are provided. The method includes displaying a list of multimedia files that can be played on a screen of a first display unit; selecting a multimedia file from the list; and playing the selected multimedia file and displaying information regarding the progress of play of the selected multimedia file on the screen of the second display unit. Accordingly, it is possible to enable a user to easily and effectively control the play of a multimedia file by displaying a list of multimedia files that can be played on the screen of a first display unit and displaying a menu or icon for controlling the play of the multimedia file on the screen of a second display unit. | 11-20-2008 |
20100313158 | METHOD FOR EDITING DATA IN MOBILE TERMINAL AND MOBILE TERMINAL USING THE SAME - A method for editing data in a mobile terminal configured to conveniently change a symbol and a mobile terminal using the method for editing data are disclosed, wherein the method includes displaying an inputted data on a touch screen, displaying on the touch screen a progress bar including a handler if a progress bar display signal is inputted, generating an undo signal or a redo signal based on a drag direction by touching the handler, and deleting the data in response to the undo signal, or reinstate the data in response to the redo signal. | 12-09-2010 |
20100315358 | MOBILE TERMINAL AND CONTROLLING METHOD THEREOF - A method of controlling a mobile terminal, the method including displaying, via a controller, at least one first function icon on a touchscreen of the mobile terminal, assigning, via the controller, a first input gesture to the displayed first function icon such that a first function corresponding to the first function icon is executed when the first input gesture is performed on the mobile terminal, and removing, via the controller, the first function icon from the touchscreen of the mobile terminal after the first gesture has been assigned to the first function icon. | 12-16-2010 |
20110258559 | MOBILE TERMINAL AND MESSAGE LIST DISPLAYING METHOD THEREIN - A mobile terminal and message list displaying method therein are disclosed, by which a message item of a counterpart terminal (or an unchecked message) having sent an unchecked message may be displayed at a specific point on a message list regardless of an arrangement reference of message items. This may include receiving at least one message from each counterpart terminal, generating the message list including at least one message item corresponding to each counterpart terminal, determining whether an unchecked message exists in the received at least one message, and when the unchecked message exists as a result of the determining, displaying the generated message list by displaying the message item corresponding to the counterpart terminal having transmitted the unchecked message at a specific position in the message list regardless of an arrangement reference of the message item. | 10-20-2011 |
Jindong Chang, Seoul KR
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20090208983 | Diagnose device for measuring the ratio of proteins with similar structure - The present invention relates to a diagnostic device for measuring the ratio of similar structural proteins among the proteins secreted in a liquid test sample taken from diagnosis subject. In further detail, the test device according to the present invention comprises detection marker-antibody conjugate recognizing the same site on two or more similar structural proteins and a detection zone in which antibody specifically recognizes each of said proteins via formation of sandwich type complex, wherein said antibodies form a set, and the present Invention relates to a diagnostic device for early diagnosis of polycystic ovary syndrome, abnormal pregnancy, prostatic carcinoma etc. based on determination of the ratio of follicle stimulating hormone and luteinizing hormone in case of polycystic ovary syndrome, the ratio between hCG isomers in case of abnormal pregnancy, and the ratio of prostate-specific antigens (PSA) in case of prostatic carcinoma. | 08-20-2009 |
Jin-Hae Chang, Seoul KR
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20100228002 | SELF-CROSSLINKING POLYAMIC ACID, SELF-CROSSLINKING POLYIMIDE, METHOD OF MANUFACTURING SELF-CROSSLINKING POLYIMIDE, AND SELF-CROSSLINKING POLYIMIDE FILM INCLUDING THE SELF-CROSSLINKING POLYIMIDE - Provided are a self-crosslinking polyamic acid being a condensation reaction product of melamine-based material, an acid anhydride, and a diamine compound, a self-crosslinking polyimide being a condensation and imidization reaction product of melamine-based material, an acid anhydride, and a diamine compound, a method of preparing the self-crosslinking polyimide, and a self-crosslinking polyimide film including the self-crosslinking polyimide. | 09-09-2010 |
20110159193 | METHOD OF FORMING FLEXIBLE MOISTURE AND OXYGEN BARRIER THIN FILM SUBSTRATE - Disclosed herein is a method of forming a flexible moisture and oxygen barrier thin film substrate for a flexible display and food packaging, the thin film being able to increase the life-spans of organic devices. The method includes the steps of: a) uniformly dispersing plate-shape nanometer-size or micrometer-size particles in polymer solution; b) casting the polymer solution dispersed with the nanometer-size or micrometer-size particles using the solution casting method and then removing the solvent from the cast polymer solution to form a plastic film; c) stretching the formed plastic film between the glass transition temperature and melting point to exfoliate the plate-shape nanometer-size or micrometer-size particles and to orient the exfoliated nanometer-size or micrometer-size particles; d) coating the stretched plastic film with an organic film to smooth the surface of the flexible substrate; and e) heat-treating the flexible substrate to cure the organic film. | 06-30-2011 |
Jin Yeop Chang, Seoul KR
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20110103581 | METHOD AND APPARATUS FOR GENERATING NON-INTERACTIVE KEY AND METHOD FOR COMMUNICATION SECURITY USING THE SAME - A method and apparatus for generating a non-interactive key, and a method for communication security using the same. A event is detected, and keys are generated based on the detected event. Thus, keys are generated using a small number of calculating operations with a simple interface and thus a user may easily generate the keys, and the performance of an apparatus using the keys is improved. In addition, the keys are generated without wireless interaction between nodes, thereby improving communication security. | 05-05-2011 |
20130324121 | APPARATUS AND METHOD FOR MACHINE-TO-MACHINE COMMUNICATIONS - Provided are an apparatus and method for executing machine-to-machine (M2M) communications. A device is abstracted through a pre-stored device master template and a pre-stored resource master template, M2M communications are managed through an interface to access resources, and information is periodically synchronized. A problem of system scalability and a problem of heterogeneity of interfaces to access resources may be solved and synchronization may be performed while a load of a network service capability layer (NSCL) is minimized without deteriorating service quality. | 12-05-2013 |
Jong Soo Chang, Seoul KR
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20120028359 | PRODUCTION PROCESS OF GENDER-SPECIFIC SERUM AND BIOMARKER USING THE SERUM - The present invention relates to a production process of a gender-specific serum and a biomarker using the serum. More specifically, the present invention uses a fatty acid that exhibits a specific expression pattern in a gender-specific serum as a biomarker not only for diagnosis of obesity or a disease related to obesity, but also for diagnosis of meat quality since the fatty acid promotes differentiation of muscle derived stem cells into adipose cells. In addition, the present invention can establish a research system studying the effects of steroid hormones on the cell culture by using sera separated from blood that is collected from individual mammal carcasses being disposed, and provide important clues for discovering a gene associated with the synthesis of steroid hormone and for developing treatments for human diseases. Further, the present invention may contribute to increased profits derived from producing high quality sera, a reduced cost with treatment for carcass wastes, and promotion of the eco-industry for reducing environmental hormones. | 02-02-2012 |
Joonyeon Chang, Seoul KR
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20090101888 | METHOD OF MANUFACTURING IN (As) Sb SEMICONDUCTOR ON LATTICE-MISMATCHED SUBSTRATE AND SEMICONDUCTOR DEVICE USING THE SAME - Disclosed is a method of manufacturing a semiconductor device whereby InAs | 04-23-2009 |
20120007045 | P-TYPE SEMICONDUCTOR DEVICE COMPRISING TYPE-2 QUANTUM WELL AND FABRICATION METHOD THEREOF - Disclosed herein are a method of generating a two-dimensional hole gas (2DHG) using a type-2 quantum well formed using semiconductors with different electron affinities or band gap, and a high-speed p-type semiconductor device using the 2DHG. To this end, the method includes providing a semiconductor substrate; growing a first semiconductor layer on the semiconductor substrate, growing a second semiconductor layer with a different electron affinity or band gap from the first semiconductor layer on the first semiconductor layer, and growing a third semiconductor layer with a different electron affinity or band gap from the second semiconductor layer, thereby forming a type-2 quantum well; and forming a p-type doping layer in the vicinity of the type-2 quantum well, thereby generating the 2DHG. | 01-12-2012 |
20140309126 | PEPTIDE BINDING TO GRAPHITIC MATERIALS AND PHAGE INCLUDING SAME - The present disclosure provides a peptide including one or more amino acid sequence selected from a group consisting of SEQ ID NO 1 and SEQ ID NO 2 and binding specifically to a graphitic material, a phage including same, and a graphitic material including a graphitic surface on which the peptide or the phage is arranged. | 10-16-2014 |
Joon Yeon Chang, Seoul KR
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20080308844 | Spin Transistor Using Perpendicular Magnetization - A spin transistor useful for device miniaturization and high-density integration is provided. The spin transistor includes: a semiconductor substrate including a channel layer; ferromagnetic source and drain disposed on the semiconductor substrate to be separated from each other and to be magnetized in a direction perpendicular to a surface of the channel layer; a gate formed on the semiconductor substrate between the source and the drain to adjust spins of electrons passing through the channel layer, wherein spin-polarized electrons are injected from the source to the channel layer, and the electrons injected into the channel layer pass though the channel layer and are injected into the drain, and wherein the spins of the electrons passing through the channel layer undergo precession due to a spin-orbit coupling induced magnetic field according to a voltage of the gate. | 12-18-2008 |
20090008689 | Spin Transistor Using Ferromagnet - A spin transistor comprises a semiconductor substrate part having a lower cladding layer, a channel layer and an upper cladding layer sequentially stacked therein, a ferromagnetic source and drain on the substrate part, and a gate on the substrate part to control spins of electrons passing through the channel layer. The lower cladding layer comprises a first lower cladding layer and a second lower cladding layer having a higher band gap than that of the first lower cladding layer. The upper cladding layer comprises a first upper cladding layer and a second upper cladding layer having a higher band gap than that of the first upper cladding layer. The source and the drain are buried in an upper surface of the substrate part and extend downwardly to or under the first upper cladding layer. | 01-08-2009 |
20090152606 | Spin Transistor Using Epitaxial Ferromagnet-Semiconductor Junction - A spin transistor conducive to the miniaturization and large scale integration of devices, because a magnetization direction of a source and a drain is determined by a direction of the epitaxial growth of a ferromagnet. The spin transistor includes a semiconductor substrate having a channel layer formed thereinside; ferromagnetic source and drain epitaxially grown on the semiconductor substrate and magnetized in a longitudinal direction of the channel layer due to magnetocrystalline anisotropy—the source and drain being disposed spaced apart from each other in a channel direction and magnetized in the same direction—; and a gate disposed between the source and the drain to be insulated with the semiconductor substrate and formed on the semiconductor substrate to control the spin of electrons that are passed through the channel layer. | 06-18-2009 |
20100027330 | MAGNETIC MEMORY DEVICE AND METHOD FOR READING MAGNETIC MEMORY CELL USING SPIN HALL EFFECT - A magnetic memory device includes a substrate for reading and a magnetic memory cell. The substrate has a channel layer. The magnetic memory cell is formed on the substrate and has a magnetized magnetic material that transfers spin data to electrons passing the channel layer. Data stored in the magnetic memory cell are read by a voltage across both side ends of the channel layer that is generated when the electrons passing the channel layer deviate in the widthwise direction of the channel layer by a spin Hall effect. | 02-04-2010 |
20100084633 | SPIN TRANSISTOR USING DOUBLE CARRIER SUPPLY LAYER STRUCTURE - A spin transistor includes a semiconductor substrate including a channel layer having a 2-dimensional electron gas structure and upper and lower cladding layers disposed respectively in upper and lower sides of the channel layer; ferromagnetic source and drain electrodes formed on the semiconductor substrate and disposed spaced apart from each other; a gate electrode disposed between the source electrode and the drain electrode and having a gate voltage applied thereto in order to control the spin of electrons passed through the channel layer; a first carrier supply layer disposed between the lower cladding layer and the channel layer to supply carriers to the channel layer; and a second carrier supply layer disposed between the upper cladding layer and the channel layer to supply carriers to the channel layer. | 04-08-2010 |
20110042648 | RECONFIGURABLE LOGIC DEVICE USING SPIN ACCUMULATION AND DIFFUSION - A logic device includes: a substrate having a channel layer; two input terminal patterns of ferromagnetic material formed on the substrate and spaced apart from each other along a longitudinal direction of the channel layer so as to serve as the input terminals of a logic gate; and an output terminal pattern of ferromagnetic material formed on the substrate and disposed between the two input terminal patterns to serve as an output terminal of the logic gate. The output terminal pattern reads an output voltage by using spin accumulation and diffusion of electron spins which are injected into the channel layer from the input terminal patterns. | 02-24-2011 |
20110279146 | COMPLEMENTARY SPIN TRANSISTOR LOGIC CIRCUIT - There is provided a complementary spin transistor logic circuit, including: a parallel spin transistor that includes a magnetized first source, a first drain magnetized in parallel with the magnetization direction of the first source, a first channel layer and a first gate electrode; and an anti-parallel spin transistor that includes a magnetized second source, a second drain magnetized in anti-parallel with the magnetization direction of the second source, a second channel layer and a second gate electrode, wherein the first gate electrode and the second gate electrode are connected to a common input terminal. | 11-17-2011 |
20130140606 | COMPLEMENTARY LOGIC DEVICE USING SPIN INJECTION - A complementary logic device includes: an insulating layer formed on a substrate; a source electrode formed of a ferromagnetic body on the insulating layer; a gate insulating film; a gate electrode formed on the gate insulating film and controlling a magnetization direction of the source electrode; a channel layer formed on each of a first side surface and a second side surface of the source electrode and transmitting spin-polarized electrons from the source electrode; a first drain electrode formed on the first side surface of the source electrode; and a second drain electrode formed on the second side surface of the source electrode, wherein a magnetization direction of the first drain electrode and a magnetization direction of the second drain electrode are antiparallel to each other. Therefore, not only characteristics of low power and high speed but also characteristics of non-volatility and multiple switching by spin may be obtained. | 06-06-2013 |
20140167814 | MAGNETIC FIELD CONTROLLED RECONFIGURABLE SEMICONDUCTOR LOGIC DEVICE AND METHOD FOR CONTROLLING THE SAME - A non-volatile reconfigurable logic device executing logical operations and a memory function and controlled by a magnetic field is provided. The reconfigurable logic device includes i) at least one semiconductor device; and ii) a pair of magnetic field controlled devices respectively spaced apart from both sides of the semiconductor device and that are adapted to generate magnetic field leakage to control the semiconductor device. The semiconductor device includes i) a first semiconductor layer; and ii) a second semiconductor layer located on the first semiconductor layer. One of the first semiconductor layer and the second semiconductor layer is a p-type semiconductor layer and the other is an n-type semiconductor layer. | 06-19-2014 |
20140264514 | COMPLEMENTARY SPIN DEVICE AND METHOD FOR OPERATION - A complementary device including a gate electrode, a channel, a source electrode connected to the gate electrode and the channel, and a first drain electrode and a second drain electrode connected to the gate electrode and the channel is provided. The first/second drain electrode is formed so that, in accordance with a voltage applied to the gate electrode, electron spins injected into the source electrode are moved from the source electrode to the first/second drain electrode through the channel while rotating in a first/second direction. Directions of the electron spins that reach the first drain electrode and the second drain electrode are opposite to each other. | 09-18-2014 |
Keun-A Chang, Seoul KR
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20110294866 | PHARMACEUTICAL COMPOSITION FOR TREATING DEMENTIA COMPRISING SHRNA INHIBITING S100A9 EXPRESSION - Disclosed is a composition for treating dementia including shRNA to inhibit expression of S100a9. More particularly, the present disclosure describes a composition for prevention or treatment of dementia which includes shRNA having a nucleotide sequence defined by SEQ. ID No. 1 or 2 or a mixture thereof wherein the nucleotide sequence is complementarily bonded to mRNA of S100a9 in order to inhibit expression of S100a9, as well as a method for prevention or treatment of dementia, including administering the foregoing shRNA into a mammalian cell including a human cell or in vitro established mammalian cell-line, in order to inhibit expression of S100a9 protein. | 12-01-2011 |
Ki Heung Chang, Seoul KR
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20100324747 | COMPOSITE TYPE ELECTRIC CIRCUIT BREAKER AND METHOD THEREOF - A composite electric circuit breaker, and method thereof, is configured to detect signals regarding arc faults, overcurrent, and earth leakage. Arcs and electric currents are detected by a current transformer and earth leakage is detected by a zero phase current transformer. A variation of electric current, the number of arcs which are generated per a unit time, a present electric current value, and electric current earth leakage are combined to judge whether arc faults occur to then interrupt an electric power supply. Temperature is measured on a printed circuit board, and if temperature rise occurs, the electric power supply is interrupted, and an interruption cause is displayed. Electric accidents and occurrence of fires are prevented simultaneously and more accurately. The interruption causes can be confirmed, analyzed and externally monitored through a network, to thus maximize efficiency of electric management. | 12-23-2010 |
Kyu-Baik Chang, Seoul KR
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20100114553 | Systems and Methods for Executing Unified Process-Device-Circuit Simulation - A unified simulation system is provided. The unified simulation system includes an input database storing input data comprising an input parameter and environment information, a unified simulator executing a unified process-device-circuit simulation of characteristics of a semiconductor apparatus based on the input data and at least one predetermined model and outputting a simulation result as output data, and an output database storing the output data. The unified simulator includes a process simulator simulating at least one process based on the input data and outputting process characteristic data, a device simulator simulating at least one device based on the process characteristic data and outputting device characteristic data, and a circuit simulator simulating a circuit comprising the at least one device. Accordingly, multiple devices can be simultaneously optimized for the optimization of circuit characteristics and an accurate specification at process and device levels can be provided. | 05-06-2010 |
Kyunghi Chang, Seoul KR
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20090190537 | METHOD, APPARATUS FOR DYNAMIC RESOURCE ALLOCATION METHOD IN OFDMA-BASED COGNITIVE RADIO SYSTEM AND FORWARD LINK FRAME STRUCTURE THEREOF - Provided are a dynamic resource allocation method and apparatus in an Orthogonal Frequency Division Multiple Access (OFDMA)-based cognitive radio system and a downlink frame structure of the method and apparatus. The method includes a base station (BS) selecting one of an Adaptive Modulation and Coding (AMC) subchannel allocation scheme, in which a subchannel comprising at least one bin comprising a first plurality of continuous subcarriers in a frequency domain, is allocated, and a diversity subchannel allocation scheme, in which a subchannel comprising a second plurality of scattered subcarriers in the frequency domain is allocated, according to a level of frequency selectivity of an unused idle frequency band; and the BS allocating at least one subchannel to a terminal according to the selected subchannel allocation scheme. Accordingly, downlink throughput in the cognitive radio system can be increased. | 07-30-2009 |
20100265070 | APPARATUS AND METHOD THAT PREVENT COLLISION OF TAGS IN RFID SYSTEM - Disclosed is an apparatus and method for preventing a collision in an RFID system, the method including: transmitting a Query to at least one tag, verifying whether an adjustment of a slot counter is required based on a response received from the tag, adjusting the slot counter when the verifying verifies that the adjustment of the slot counter is required, and transmitting the adjusted slot counter to the tag using a QueryAdjust regardless of whether a current frame is completed. | 10-21-2010 |
Kyung Hi Chang, Seoul KR
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20080232320 | Dynamic Resource Allocation Method Based on Frequency Reuse Partitioning For Ofdma/Fdd System, and Frame Transmission Method Therefor - Provided are a dynamic resource allocation method based on frequency reuse partitioning for an Orthogonal Frequency Division Multiple Access (OFDMA) system, and a frame transmission method therefor. The dynamic resource allocation method includes: a) dividing a coverage into cells based on frequency reuse partitioning; b) selecting a candidate user to receive a channel allocated thereto based on the ratio; c) acquiring distance information for the candidate user; and d) checking whether the candidate user is in an inner or outer cell area based on the distance information. If the candidate user is in the inner cell area, a subchannel group among subchannel groups having a Frequency Reuse Factor (FRF) lower than a threshold value is selected and subcarriers of the selected subchannel group is allocated. If the candidate user is in the outer cell area, a subchannel group among subchannel groups having a FRF higher than the threshold value is selected. | 09-25-2008 |
20080248753 | Method and apparatus for retransmitting data based on antenna scheduling in MIMO system - Provided is a method for retransmitting data based on antenna scheduling in a MIMO system to which a spatial multiplexing technique is applied. The method includes the steps of: (a) at a transmitter side, modulating an input packet into transmittable data to transmit to a receiver side; (b) at the receiver side, estimating channel values from the packet transmitted from the transmitter side, and selecting transmitting and receiving antennas for transmitting the next packet from the estimated channel values; (c) detecting whether an error is present in the packet or not, and transmitting a feedback signal to the transmitter side, the feedback signal including information on whether or not to transmit the packet and a list of the selected transmitting antennas; and (d) at the transmitter side, retransmitting the transmitted packet or transmitting the next packet through the transmitting antennas designated by the receiver side depending on the feedback signal. | 10-09-2008 |
20090196362 | TRANSMISSION METHOD AND APPARATUS FOR ALLOCATING SUBCHANNEL AND FORMING STATIONARY BEAM TO MAXIMIZE TRANSMISSION EFFICIENCY IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING/MULTIPLE ACCESS BASED WIRELESS COMMUNICATION SYSTEM - Provided are a transmission method and apparatus for allocating a subchannel and forming a stationary beam to maximize transmission efficiency in an OFDMA based wireless communication system. The method includes determining the subchannel for the equipment of each user based on the channel state of the equipment of each user, determining a beam index for the equipment of each user, based on location information and direction of arrival information of the equipment of each user, generating an OFDM symbol by mapping a modulation symbol corresponding to the equipment of each user to the determined subchannel, and transmitting the generated OFDM symbol to a wireless space by forming a beam following the determined beam index. Using the method, the equipment of each user can be allocated with an advantageous subchannel, can remove an interference signal at low cost, and can increase total throughput of an OFDMA system downlink. | 08-06-2009 |
20090316635 | Method and frame structure for supporting dynamic channel allocation and dynamic power allocation in frequency reuse partitioning based OFDMA system - Provided are a dynamic channel/power allocation method for an FRP-based OFDMA system and a frame/slot structure. capable of supporting the dynamic channel/power allocation method. In the FRP-based OFDMA system, each of cells has an inner cell, an outer cell and a plurality of sectors and performs data communication with a plurality of MSs therein through one or more orthogonal subchannel groups. In the dynamic channel/power allocation method, a BS receives a feedback channel condition from an MS provided with a service of the BS and allocates a subchannel group with a high SINR to each MS in consideration of the fairness and the distance information of each MS. Power is allocated to each MS on the basis of the conditions of a channel allocated to each MS, thereby obtaining a multi-user diversity gain. | 12-24-2009 |
20100182897 | SIGNAL DETECTING METHOD FOR SPATIAL MULTIPLEXING MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEMS - A method for detecting signals in spatial multiplexing multiple-input multiple-output (MIMO) systems using a QR-decomposition with M (QRD-M) algorithm is provided. The method includes receiving signals, limiting upper and lower bounds of a complexity in a QR-decomposition with M (QRD-M) algorithm, and detecting the received signals using the QRD-M algorithm. The signal detecting method can effectively reduce the amount of operation generated while detecting signals, using the QRD-M algorithm where the upper and lower bounds of the complexity are limited. | 07-22-2010 |
20110044407 | ADAPTIVE QRD-M ALGORITHM BASED SIGNAL DETECTING METHOD BY USING CONSTELLATION SET GROUPING IN SPATIAL MULTIPLEXING MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM - There is provided a signal detecting method using constellation set grouping in a spatial multiplexing multiple input multiple output system. The signal detecting method includes dividing a set of candidate symbols, a constellation set into a plurality of subsets by grouping the constellation set; dividing a tree search process of a QR-decomposition with M-algorithm (QRDM) algorithm into a plurality of partial detection phases; and performing the plurality of divided partial detection phases in parallel or iteratively. | 02-24-2011 |
20110058470 | RANGING APPARATUS AND METHOD FOR IMPROVING RANGING PERFORMANCE IN OFDMA SYSTEM - Disclosed herein is a ranging apparatus and method. The ranging apparatus includes a correlation unit for correlating OFDMA reception signals with inverse fast Fourier transformed ranging codes, and outputting correlation result values. A threshold determination unit determines a threshold value depending on characteristics of the reception signals. A comparison unit estimates a delay time by selecting a maximum value from among the correlation result values, and detects a ranging code by comparing the maximum value with the threshold value, and then outputs and feeds back the ranging code and the delay time when the maximum value is equal to or greater than the threshold value. A weight multiplication unit delays the ranging code by the delay time, multiplies a weight by the delayed ranging code, and outputs a resulting value. A calculation unit subtracts the resulting value from the reception signals, and provides adjusted reception signals. | 03-10-2011 |
20140293906 | SYSTEM AND METHOD TO MITIGATE INTERFERENCE OF 3GPP LTE HETEROGENEOUS NETWORK ACCORDING TO PRIORITY OF SERVICE - A power control system and method to mitigate interference in a heterogeneous network is provided. A power control method to mitigate interference may include: receiving a link connection request from a femto terminal; transmitting a downlink signal when the link connection request is allowed; receiving information of a macro terminal present around a femto base station; controlling a power of the downlink signal in response to a high interference indicator (HII) report being included in the received information of the macro terminal; and controlling the power of the downlink signal based on a priority of service while satisfying predetermined constraints, in response to the HII report in a state in which the power of the downlink signal is decreased up to a predetermined required power. | 10-02-2014 |
20140295872 | SYSTEM AND METHOD TO ALLOCATE FREQUENCY DYNAMICALLY BASED ON PRIORITY OF QUALITY OF EXPERIENCE (QoE) IN 3GPP LTE HETEROGENEOUS NETWORK - A method and system to dynamically allocate a frequency based on a priority of quality of experience (QoE) is disclosed. A method to dynamically allocate a frequency may include: securing a predetermined frequency band and a bonus frequency band for a macrocell; allocating the predetermined frequency band and the bonus frequency band to a macro terminal located in the macrocell; allocating the bonus frequency band based on the priority of service in a subsequent time slot when a frequency band comprising the predetermined frequency band and the bonus frequency band is not allocated to the macro terminal. | 10-02-2014 |
Man Heui Chang, Seoul KR
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20100036882 | SARPS MANAGEMENT AND IMPLEMENTATION SYSTEM - The present invention relates to a SMIS system for managing systematically an implementation status of an aviation safety regulation, and more particularly, to a SMIS system for analyzing, complementing and assessing automatically an implementation status of an aviation safety regulation in own country on the basis of standards and recommended practices prescribed in the annexes for 18 fields published and managed by the International Civil Aviation. | 02-11-2010 |
Michael Chin An Chang, Seoul KR
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20090123629 | Tofu Hydrated Structured Protein Compositions - The present invention discloses a structured protein composition which includes a structured protein product which can be combined with tofu, soy whey, or soymilk and a coagulant to form the structured protein composition. Restructured meat compositions and restructured food compositions which include the structured protein composition are also included. | 05-14-2009 |
Minkyu Chang, Seoul KR
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20110260951 | SUBPIXEL ARRANGEMENT STRUCTURE OF DISPLAY DEVICE - A subpixel arrangement structure for a display device, including a plurality of unit pixels each having a red subpixel, a green subpixel and a blue subpixel which form a delta arrangement structure, wherein openings of the red and green subpixels of each unit pixel are substantially aligned along a direction of a column axis, wherein an opening of the blue subpixel of each until pixel are substantially aligned along the direction of the column axis or a direction of a row axis that is perpendicular to the column axis, and wherein two of the plurality of unit pixels of each pixel group, that are positioned adjacent to each other in the direction of the column axis or the direction of the row axis, share one blue subpixel with each other. | 10-27-2011 |
20110260952 | SUBPIXEL ARRANGEMENT STRUCTURE FOR A DISPLAY DEVICE AND DISPLAY DEVICE - A subpixel arrangement structure for a display device, including a plurality unit pixels each having a red subpixel, a green subpixel and a blue subpixel, wherein openings of the red and green subpixels of each unit pixel are aligned along a direction of a column axis, and wherein an opening of the blue subpixel of each unit pixel is aligned along a direction of a row axis that is perpendicular to the column axis or arranged in zigzags along the direction of the row axis. | 10-27-2011 |
20140062331 | ORGANIC LIGHT EMITTING DISPLAY AND DRIVING METHOD THEREOF - An organic light emitting display comprises: a driving TFT comprising a gate connected to a node B, a drain connected to an input terminal of high-potential cell driving voltage, and a source connected to the organic light emitting diode through a node C; a first switching TFT for switching the current path between a node A and the node B in response to a light emission control signal; a second switching TFT for initializing the node C in response to an initialization signal; a third switching TFT for initializing either the node A or the node B in response to the initialization signal; a fourth switching TFT for switching the current path between a data line and the node B in response to a scan signal; a compensation capacitor connected between the node B and the node C. | 03-06-2014 |
20140184481 | ORGANIC LIGHT EMITTING DISPLAY, METHOD FOR DRIVING THE SAME, AND METHOD FOR MANUFACTURING THE SAME - An organic light emitting display, a method for driving the same, and a method for manufacturing the same are discussed. The organic light emitting display according to an embodiment includes a panel including subpixels each having a compensation circuit including a reference voltage supply transistor, which receives a reference voltage and initializes a node of a gate electrode of a driving transistor using the reference voltage, a scan driver supplying a scan signal to scan lines of the panel, a data driver supplying a data signal to data lines of the panel, a timing controller controlling the scan driver and the data driver, and a reference voltage compensation unit which varies the reference voltage on each scan line and supplies the reference voltage to the subpixels. | 07-03-2014 |
Myung-Keun Chang, Seoul KR
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20110186502 | COMBINATION TRAVELING WATER SCREEN APPARATUS - Provided is a combination traveling water screening apparatus capable of improving collection and filtering efficiency of floating matters and reducing maintenance costs. The apparatus includes a frame ( | 08-04-2011 |
Myung-Soo Chang, Seoul KR
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20110268267 | METHOD AND APPARATUS FOR PROVIDING CONTENT SERVICE - There is provided a method and apparatus for providing a content service. A method of providing a content service includes generating a plurality of pieces of decryption information according to a continuous period of using a broadcasting service with respect to predetermined contents, encrypting the contents, and decrypting the encrypted contents using the decryption information. | 11-03-2011 |
Peter Taehwan Chang, Seoul KR
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20100303436 | VIDEO PROCESSING SYSTEM, VIDEO PROCESSING METHOD, AND VIDEO TRANSFER METHOD - A video processing system is provided. The video processing system includes: a camera that compresses a captured video and provides the compressed video; a video preparation unit including a playback server that decodes a moving picture compression stream transmitted from the camera and a video processor that processes a video decoded by the playback server; and a display device that displays a video prepared and provided by the video preparation unit. Accordingly, a video captured and compressed by a camera is prepared by decoding, and the video is configured with various output conditions so as to be displayed on a display device. This, in comparison with the convention method in which a required video is decoded and displayed whenever a video display condition changes, the required video can be rapidly displayed within a short period of time, and videos captured by a plurality of cameras can be displayed on one image on a real time basis while maintaining a maximum frame rate of the cameras without restriction of the number of cameras. Therefore, there is an advantage in that a specific video can be zoomed in, zoomed out, or panned on a real time basis at the request of a user, thereby improving a usage rate and an operation response of the video processing system. | 12-02-2010 |
20130279871 | VIDEO PROCESSING SYSTEM AND VIDEO PROCESSING METHOD - A video processing system includes: a merge server configured to decode a plurality of individual videos provided from video providing units, encode the plurality of individual videos by adjusting an amount of data of each of the individual videos to generate a preliminary video, and provide the preliminary video; a display server configured to receive the preliminary video and configure final videos according to output conditions of a display device; and a control server configured to receive the output conditions from the display server and transfer an output control signal with respect to the preliminary video to the merge server. When a user wants, individual videos provided from the plurality of video providing units can be displayed on a display device without sacrificing resolution and a frame rate, and since videos can be zoomed in/out and panned in real time, operational responsiveness and usage efficiency of the video processing system can be enhanced. | 10-24-2013 |
Raehyuk Chang, Seoul KR
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20080241914 | System for automatically performing separation or purification of biological materials - A system for automatically performing the operations of separating and purifying a variety of biological materials for processing nucleic acids or biological materials from biological samples using solid materials. A base plate, a carriage attachment frame assembly including a frame and a plurality of mounting units, a magnetic bar assembly including a frame, a base plate transport unit, a carriage attachment frame assembly transport unit, a magnetic bar transport unit, and a control unit are utilized. A predetermined number and a small amount of samples can be selectively processed in accordance with a user's needs. | 10-02-2008 |
Sedong Chang, Seoul KR
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20110155816 | Air Conditioner - An air conditioner includes a plurality of compressors, an intake passageway, a bypass unit, and an expansion valve. The intake passageway distributes a fluid to each of the compressors. The bypass unit includes a plurality of bypass pipes connected respectively to the compressors and a common bypass pipe to discharge the fluids from the compressors to the intake passageway. The expansion valve is provided to the bypass unit to control a flow of fluid from the common bypass pipe to the intake unit. | 06-30-2011 |
20110174002 | REFRIGERANT SYSTEM AND METHOD FOR CONTROLLING THE SAME - A refrigerant system includes an outdoor unit and a plurality of indoor units. The outdoor unit has a compressor and a plurality of heat exchangers and each indoor unit has a heat exchanger. A detector detects pressures at an inflow side and a discharge side of the compressor, and a controller controls a direction of refrigerant flow for the heat exchangers of the outdoor unit. This may involve changing the refrigerant flow direction for at least one of the heat exchanger of the outdoor unit based on the detected pressures. | 07-21-2011 |
20110192181 | REFRIGERANT SYSTEM - A refrigerant system is provided. The refrigerant system may use an electronic expansion valve that electronically controls an opening degree thereof, as a high-pressure valve and a low-pressure valve to selectively block a high-pressure branch valve and a low-pressure branch valve. Accordingly, noise transmitted to an interior space may be minimized when the operation mode of the refrigerant system is switched. In addition, the structure of the refrigerant system may be simplified. | 08-11-2011 |
20110192183 | REFRIGERANT SYSTEM - Provided is a refrigerant system including a high-pressure bypass tube guiding a refrigerant of a high-pressure tube to flow into an indoor unit tube by bypassing a high-pressure valve. Thus, impact and noise that may be generated when an operation mode of an indoor unit is switched to a heating mode may be minimized. | 08-11-2011 |
Seockjun Chang, Seoul KR
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20110095722 | MOBILE TERMINAL AND CHARGE CURRENT SETTING METHOD THEREOF - Disclosed are a mobile terminal capable of effectively discriminating a mobile terminal charger so as to set an appropriate charge current, and a method for charging a charge current thereof. To this end, when a charger (e.g., Travel Adaptor (TA)) is inserted via a cable, a short-circuited state of a data pin of the charger is checked such that a route is switched to form a closed loop defined by data pins and provided with predetermined power when the data pin of the charger is in the short-circuited state, and the voltage applied to the formed closed loop is compared with a predetermined reference value, thereby determining a type of the charger. Therefore, when various types of chargers are inserted in the mobile terminal via a cable, the corresponding type of charger is determined so as to set an appropriate charge current, resulting in ensuring a fast charging operation and minimizing damage on the charger. | 04-28-2011 |
Seok Chae Chang, Seoul KR
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20100296247 | Water-cooling type cooler and inverter having the same - A water-cooling type cooler and an inverter employing the same are disclosed. A guide pin for distributing cooling water is formed in the middle of a cooling water flow path having a bent face, to make a flow rate of cooling water at the bent portion of the cooling water flow path uniform to thus improve cooling performance of the water-cooling type cooler. In addition, because the cooling performance of the water-cooling type cooler is improved without extending the cooling pin, an increase in the weight of the water-cooling type cooler can be reduced and a fabrication cost of the water-cooling type cooler can be reduced. | 11-25-2010 |
Seongpil Chang, Seoul KR
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20090278120 | Thin Film Transistor - There is provided a thin film transistor (TFT) capable of improving electron mobility and minimizing the occurrence of hysteresis due to traps. The TFT includes a channel layer and a gate insulating layer, wherein the channel layer is made of an oxide semiconductor. In the TFT, the gate insulating layer includes one or more first dielectric layer and a second dielectric layer, and the first dielectric layer has a dielectric constant different from that of the second dielectric layer. | 11-12-2009 |
Seung-Gi Chang, Seoul KR
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20090175190 | METHOD AND APPARATUS FOR PACKET AGGREGATION IN POWER LINE COMMUNICATION NETWORK - A method and apparatus for packet aggregation in a power line communication network (PLC) are provided. The method of aggregating packets includes: by performing a PLC channel estimation, determining whether or not a channel condition is good; if the channel condition is good, determining whether or not the data desired to be transmitted is suitable for packet aggregation according to the type of data; and if the channel condition is good and the data desired to be transmitted is suitable for the packet aggregation, aggregating packets of the data desired to be transmitted. Since a decision on whether or not to aggregate packets is determined according to a channel condition at a physical level and the type of data at an application level, packet aggregation can be performed in appropriate response to the frequently changing condition of a channel and the characteristic of the data desired to be transmitted. | 07-09-2009 |
Seung Hwan Chang, Seoul KR
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20120043014 | METHOD FOR MANUFACTURING METAL/COMPOSITE HYBRID WHEEL FOR VEHICLE AND METAL/COMPOSITE HYBRID WHEEL MANUFACTURED BY THE SAME - The present invention provides a method for manufacturing a metal/composite hybrid wheel for a vehicle by molding an inner rim of a composite material by compression and, at the same time, bonding an outer rim of a metal material to the inner rim to induce compressive residual stress in the bonding area by a difference in thermal expansion coefficient between the outer rim and the inner rim, thereby increasing the adhesive strength of the bonding area and the durability of the wheel. The present invention further provides a metal/composite hybrid wheel for a vehicle manufactured by the method. | 02-23-2012 |
Seung Woon Chang, Seoul KR
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20110006883 | METHOD AND SYSTEM FOR MANAGING VIRTUAL SPACE - The present invention sets up a virtual space for an actual work space in which plural goods are loaded and unloaded. The disclosed system may manage the work space by recognizing automatically whether a movable apparatus moving in the virtual space or goods loaded thereon moves into or from the virtual space. Therefore, the work space is efficiently managed | 01-13-2011 |
Suk Tai Chang, Seoul KR
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20100112300 | PHOTOCURABLE MATERIALS with MICROFLUIDIC ENDOSKELETON - A photocurable material having a microfluidic endoskeleton constructed in a flexible polymeric slab is disclosed. The flexible polymeric slab comprises a first flexible polymeric sheet with microchannel network embedded thereon and a second flexible polymeric sheet sealed to the first flexible polymeric sheet. The microchannel network is filled with a photocurable fluid that may be solidified upon exposure to an activated light to create a rigid endoskeleton within the slab. The flexible polymeric sheet may be polydimethylsiloxane (PDMS). The process allows preserving a user-defined shape by illumination of the material. The disclosed photocured shaped PDMS slab with microfluidic skeleton has enhanced tensile stress-strain properties, elastomeric modulus and bending modulus compared to the PDMS slab without the photocured microfluidic skeleton. | 05-06-2010 |
20140331920 | PRODUCTION DEVICE FOR A GRAPHENE THIN FILM - The present invention relates to a production device for graphene thin film. The production device for graphene thin film according to the present invention may comprise a deposition plate in contact with a substrate at an obtuse or acute angle, wherein the substrate is coated with a graphene oxide solution; and a reciprocating linear motion device connected to the deposition plate to put the deposition plate into reciprocating linear motion. | 11-13-2014 |
Tae-Gyu Chang, Seoul KR
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20120033768 | NON-COHERENT DETECTION APPARATUS AND METHOD FOR IEEE 802.15.4 LR-WPAN BPSK RECEIVER - A non-coherent detection apparatus and method for an IEEE | 02-09-2012 |
20120093218 | ADAPTIVE MULTIMEDIA DECODING DEVICE AND METHOD FOR SCALABLE SATELLITE BROADCASTING - Disclosed is an adaptive multimedia decoding device and method for scalable satellite broadcasting. A TS decoder TS-decodes a first transmission stream and a second transmission stream received through different transmission bands to generate a first video stream, a second video stream, and an audio stream. A first decoder and a second decoder are configured of a plurality of operation modules that are sequentially performed so as to decode the first video stream, the second video stream, and the audio stream and are independently controlled and are operated in parallel. A controller compares the amount of data corresponding to one input unit of the first video stream and the second video stream input to each of the first decoder and the second decoder, to selectively perform each operation module configuring the first decoder and the second decoder whenever the data corresponding to one input unit are input. | 04-19-2012 |
Tae-Soun Chang, Seoul KR
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20110295162 | MASSAGE APPARATUS AND MASSAGE CUP WITH DUAL STRUCTURE FOR MASSAGE APPARATUS - The present invention relates to a massage cup with a dual structure for a massage apparatus, wherein the massage cup is stepped to prevent a vacuum from being easily broken even when the massage cup moves along a curved part of a body, and wherein the massage cup with the dual structure is formed into a single body to enable easy manufacture and to eliminate the necessity of disassembly and assembly, thus enabling the proper washing and disinfection of the massage cup. The massage cup with a dual structure according to the present invention comprises: a cylindrical main body which has a nipple in communication with a negative pressure source via a connection tube, and an open bottom; and a plurality of skin contact portions which extend in the circumferential direction from the bottom of the main body and which are formed into at least one closed loop, wherein the interiors of said skin contact portions are set higher than the exteriors thereof. | 12-01-2011 |
Tu-Won Chang, Seoul KR
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20090146236 | PHOTOSENSITIVE RESIN COMPOSITION FOR PAD PROTECTIVE LAYER, AND METHOD FOR MAKING IMAGE SENSOR USING THE SAME - The present invention provides a photosensitive resin composition for a pad protective layer that includes (A) an alkali soluble resin, (B) a reactive unsaturated compound, (C) a photoinitiator, and (D) a solvent. The (A) alkali soluble resin includes a copolymer including about 5 to about 50 wt % of a unit having the Chemical Formula 1, about 1 to about 25 wt % of a unit having the Chemical Formula 2, and about 45 to about 90 wt % of a unit having the Chemical Formula 3, and a method of making an image sensor using the photosensitive resin composition. | 06-11-2009 |
Won-Kie Chang, Seoul KR
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20080237037 | MASK AND METHOD OF MANUFACTURING THE SAME - A mask includes a transparent substrate, a light-blocking layer and a halftone layer. The light-blocking layer includes a source electrode pattern portion including a first electrode portion, a second electrode portion and a third electrode portion, and a drain electrode pattern portion disposed between the second electrode portion and the third electrode portion. The halftone layer includes a halftone portion corresponding to a spaced-apart portion between the source electrode pattern portion and the drain electrode pattern portion, and a dummy halftone portion more protrusive than ends of the second electrode portion and the third electrode portion. Thus, a photoresist pattern corresponding to a channel portion of a thin film transistor (TFT) may be formed with a uniform thickness, to thereby prevent an excessive etching of the channel portion. | 10-02-2008 |
20120009842 | DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME AND MASK FOR MANUFACTURING THE SAME - A mask is provided. The mask includes a mask body, a first exposing part and a second exposing part. The first exposing part is on the mask body. The first exposing part includes a first light transmitting portion and second light transmitting portions. The first light transmitting portion exposes a portion of the photoresist film corresponding to the output terminal to a light of a first light amount. The second light transmitting portions exposes an adjacent portion of the photoresist film adjacent to the output terminal to a light of a second light amount smaller than the first light amount. The second exposing part is on the mask body. The second exposing part includes third light transmitting portions for partially exposing the photoresist film corresponding to the storage electrode to a light of a third light amount that is between the first and second light amounts. | 01-12-2012 |
Woo Hyuck Chang, Seoul KR
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20090162607 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - A flexible film is provided. The flexible film includes a dielectric film, a metal layer disposed on the dielectric film, and at least one hole formed through the dielectric film and the metal layer. Therefore, it is possible to facilitate the alignment of circuit patterns on a flexible film with an electrode of a panel of a display device or a circuit of a driving unit of a display device. | 06-25-2009 |
20090166070 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - A flexible film is provided. The flexible film includes a dielectric film, a first metal layer, which is formed on the dielectric film, and a second metal layer, which is formed on the first metal layer, wherein the surface of the dielectric film is modified so as to provide a haze of 2-25%. Therefore, it is possible to improve the peel strength of a dielectric film with respect to a metal layer and facilitate the testing of circuit patterns on a flexible film. | 07-02-2009 |
20090166860 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the ratio of the thickness of the metal layer to the thickness of the dielectric film is about 1:3 to 1:10. Therefore, it is possible to improve the peel strength, dimension stability, and tensile strength of a flexible film by limiting the ratio of the thicknesses of a dielectric film and a metal layer of the flexible film. | 07-02-2009 |
20090167638 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the dielectric film has a thermal expansion coefficient of about 3 to 25 ppm/° C. The flexible film is robust against temperature variations and has excellent thermal resistance and excellent dimension stability. | 07-02-2009 |
20090167735 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the ratio of the thickness of the metal layer to the thickness of the dielectric film is about 1:1.5 to 1:10. The flexible film has excellent plating, adhesive strength, thermal resistance, folding endurance and chemical resistance properties. | 07-02-2009 |
20090169773 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the water absorbency of the dielectric film is about 0.01-3.5%. The flexible film is robust against humidity variations and can efficiently transmit image signals having a high scan rate. | 07-02-2009 |
20090169916 | FLEXIBLE FILM AND DISPLAY DEVICE COMPRISING THE SAME - Provided is a flexible film which includes a dielectric film, a metal layer formed on the dielectric film, circuit patterns formed on the metal layer, and a tin-based bonding layer formed on the circuit patterns. Thus, it is possible to improve the reliability, thermal resistance, and dimension stability of a flexible film and enhance the adhesion between circuit patterns and an integrated circuit (IC) of a flexible film and between circuit patterns and circuit electrodes of a display device. | 07-02-2009 |
Woon-Suk Chang, Seoul KR
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20090144173 | Method for converting 2d image into pseudo 3d image and user-adapted total coordination method in use artificial intelligence, and service business method thereof - The present invention provides a method of generating a pseudo-3D user-adapted avatar by using artificial intelligence based on a method of converting a 2D image to the pseudo-3D image having visual and partial functions of a 3D model, and a method of performing a coordination simulation by applying the pseudo-3D coordination image generated by applying total clothes coordination information derived from the artificial intelligence to a user-adapted avatar. The pseudo-3D user-adapted avatar is generated by receiving primary size information and deriving secondary size information from an algorithm by using the primary size information. The pseudo-3D user-adapted avatar image suitable to the user's body shape is generated from the 2D standard avatar image. The pseudo-3D coordination image is generated, from the standard 2D image by using coordination-related information, by an artificial intelligence algorithm, and in response to a corrected pseudo-3D user-adapted avatar image, the generated pseudo-3D coordination image is displayed. | 06-04-2009 |
Woo-Yul Chang, Seoul KR
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20100277405 | CONTAINER FOR A DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME, AND DISPLAY DEVICE INCLUDING THE CONTAINER - In a container for a display device, a method of manufacturing the same, and a display device including the container, the container includes an inner layer including carbon of about 0.001 wt % to about 0.1 wt %, silicon of about 0.002 wt % to about 0.05 wt %, manganese of about 0.3 wt % to about 2 wt %, impurities of about 0.08 wt % to about 0.29 wt % based on a total weight of the inner layer and a remainder of iron, a plating layer formed on the inner layer and including electric zinc, and a polymer chrome-free layer formed on the plating layer. Thus, a weight and a thickness of the container may be reduced so that the container may have a light weight and a thin thickness. | 11-04-2010 |
Yoonseok Chang, Seoul KR
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20110157054 | COMPUTING APPARATUS FOR RECOGNIZING TOUCH INPUT - A computing apparatus for recognizing a touch input is disclosed. In accordance with the present invention, one or more objects and a space including the one or more objects displayed on a display device may be easily controlled by converting a touch of a first finger group and a touch of a second finger group into a predetermined command. | 06-30-2011 |
Yoonyoung Chang, Seoul KR
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20120029529 | MEDICAL ROBOTIC SYSTEM AND METHOD OF CONTROLLING THE SAME - A medical robotic system and method for controlling the system are provided to precisely measure contact force during the minimally invasive surgery. In one embodiment, a medical robotic system includes an input device, a robotic arm assembly, a surgical instrument operably coupled to the robotic arm assembly, the surgical instrument including a contact detection unit configured to detect a contact of the surgical instrument with tissue of a patient, a current measurement unit configured to measure a joint current in the robotic arm assembly, a position/velocity measurement unit configured to measure a joint position and a joint velocity in the robotic arm assembly, an external force calculation unit configured to calculate size and direction of a contact force caused by the contact of the surgical instrument to the tissue based on the joint currents, positions and velocities measured when the contact is occurred and measured when the contact is not occurred. | 02-02-2012 |
Yoon Young Chang, Seoul KR
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20120018233 | WALKING-ASSISTANT DEVICE - A walking-assistant device is provided comprising a driving unit that includes four wheels and four actuators for adjusting heights of the four wheels, a mechanism unit that includes two vertical frames whose length is adjusted and connection frames for fixing and connecting the vertical frames, and a manipulation unit that includes a plurality of sensors for grasping a user's moving intention and controls the driving unit and the mechanism unit based on a signal detected by the sensors. | 01-26-2012 |
Young Bae Chang, Seoul KR
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20110188155 | METHOD OF COMPENSATING FOR IMBALANCE OF HARD DISK DRIVE, APPARATUS TO PERFORM COMPENSATION, AND HARD DISK DRIVE MANUFACTURED THEREBY - A method of compensating for an imbalance of a hard disk drive includes biasing a plurality of disks in one direction with respect to a rotational shaft of a spindle motor hub, measuring an amount of imbalance of the plurality of disks with respect to the rotational shaft of the spindle motor hub, and compensating the amount of imbalance of the plurality of disks by hitting the hard disk drive in the opposite direction to the one direction in which the plurality of disks are biased to reduce the amount of imbalance with an amount of impact predetermined based on a measured imbalance amount. | 08-04-2011 |
20120268841 | SUSPENSION FOR COMPENSATING SLIDER ATTITUDE - Disclosed is an assembly located in a memory device. The assembly includes: a suspension including a flexure to which a slider is coupled and a load beam disposed at an upper part of the flexure The assembly also includes at least one piezoelectric film coupled to the suspension and configured to control at least one of an angle between the load beam and the flexure in a pitching direction and an angle between the load beam and the flexure in a rolling direction by being extended or contracted when electrical current is applied thereto. | 10-25-2012 |
Young Sool Chang, Seoul KR
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20110228470 | INDUSTRIAL COMPUTER CAPABLE OF DUST PREVENTION AND RESISTANT TO VIBRATION - A dust-free and anti-vibration industrial computer. The industrial computer has a case sealed from the outside, a heat diffusion fin assembly mounted on the outer surface of the case, and a circulation pipe for allowing a heat generating component and at least a heat diffusion fin to be communicated with each other, or a heat pipe for transferring heat between the heat generating component and the heat diffusion fin. The heat generating component can be cooled in a state in which dust is prevented from being produced within the case. | 09-22-2011 |
Young-Tae Chang, Seoul KR
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20120044051 | REMOTE DISPLAY CONTROL - Technologies are generally described for controlling remote display. In some examples, a method for controlling a remote display device using a handheld computing device includes receiving, by a handheld computing device, one or more data from one or more remote display devices over a wireless communication network, selecting a remote display device based on the received data and sending a control signal to the selected remote display device. | 02-23-2012 |
20150070250 | REMOTE DISPLAY CONTROL - Technologies are generally described for controlling remote display. In some examples, a method for controlling a remote display device using a handheld computing device includes receiving, by a handheld computing device, one or more data from one or more remote display devices over a wireless communication network, selecting a remote display device based on the received data and sending a control signal to the selected remote display device. | 03-12-2015 |
Youn-Seog Chang, Seoul KR
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20080214110 | Apparatus and method for exchanging active profile in bluetooth communication system - An active profile exchange in a Bluetooth communication system is provided. A method for exchanging a profile of a server device in the Bluetooth communication system includes receiving a request for a service support list from a client device; when there is no adequate profile for the client device, generating and transmitting a service support list including information informing that an active profile generation is possible in response to the request; after providing the service support list, receiving the active profile generated by the client device when the client device requests an active profile exchange; and operating according to the active profile generated by the client device. | 09-04-2008 |
Yun Sil Chang, Seoul KR
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20080311088 | Method of Treating Lung Diseases Using Cells Separated Or Proliferated From Umbilical Cord Blood - There is provided a method of treating lung diseases including administering cells separated or proliferated from umbilical cord blood to a patient suffering from such diseases. | 12-18-2008 |
20140072527 | COMPOSITION FOR TREATING INTRAVENTRICULAR HEMORRHAGE IN PRETERM INFANTS COMPRISING MESENCHYMAL STEM CELLS - Disclosed is a composition for the prophylaxis or therapy of intraventricular hemorrhage in preterm infants comprising mensenchymal stem cells. Functioning to prevent ventricular dilatation and reduce the level of inflammatory cytokines in cerebrospinal fluid, the composition comprising mesenchymal stem cells is advantageously useful for the prophylaxis or therapy of intraventricular hemorrhage in preterm infants. Accordingly, the composition is effectively preventive of hydrocephalus which occurs subsequent to intraventricular hemorrhage. In addition, the composition makes not only a histological and biochemical recuperation in the intraventricular hemorrhage-injured brain, but also significantly improves sensory motor functions. Mesenchymal stem cells can be used as an effective therapeutic agent because they are less prone to induce immune rejection responses and are highly likely to secrete proliferative, differentiative, and regulatory factors. Hence, mesenchymal stem cells are expected to play a critical role in the therapy of intraventricular hemorrhage in preterm infants. | 03-13-2014 |