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Choi, Anyang-Si

Baiksoon Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110218134PHOTOSENSITIVE-RESIN REMOVER COMPOSITION AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE SAME - A photosensitive-resin remover composition includes an amine compound and de-ionized water, an amount of the de-ionized water being about 45% to about 99% by weight based on a total weight of the composition.09-08-2011
20110245128COMPOSITION FOR REMOVING A PHOTORESIST AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE USING THE COMPOSITION - Provided are a composition for removing a photoresist and a method of manufacturing a semiconductor device using the composition. The composition includes about 60-90 wt % of dimethyl sulfoxide, about 10-30 wt % of a polar organic solvent, about 0.5-1.5 wt % of hydroxy alkyl ammonium and about 1-10 wt % of an amine containing no hydroxyl group.10-06-2011
20120058636COMPOSITION FOR REMOVING A PHOTORESIST AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE USING THE COMPOSITION - Provided are a composition for removing a photoresist and a method of manufacturing a semiconductor device using the composition. The composition includes about 60-90 wt % of dimethyl sulfoxide, about 10-30 wt % of a polar organic solvent, about 0.5-1.5 wt % of hydroxy alkyl ammonium and about 1-10 wt % of an amine containing no hydroxyl group.03-08-2012

Baik-Soon Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080214422THINNER COMPOSITION AND METHOD OF REMOVING PHOTORESIST USING THE SAME - A thinner composition includes propylene glycol ether acetate, methyl 2-hydroxy-2-methyl propionate, and an ester compound such as ethyl lactate, ethyl 3-ethoxy propionate or a mixture thereof.09-04-2008

Patent applications by Baik-Soon Choi, Anyang-Si KR

Bang-Sil Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080246904LIGHT GUIDE PLATE AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A liquid crystal display apparatus comprising a liquid crystal display panel and a touch panel is disclosed. A first transparent electrode is disposed on an upper surface of the liquid crystal display panel for displaying an image. A second transparent electrode is disposed on a lower surface of a retardation member and the second transparent electrode is opposite to the first transparent electrode. Accordingly, the entire thickness of the liquid crystal display apparatus may be decreased, and the manufacturing cost of the liquid crystal display apparatus may be reduced.10-09-2008

Patent applications by Bang-Sil Choi, Anyang-Si KR

Byoung-Su Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20120057032APPARATUS AND METHOD FOR PROVIDING AUGMENTED REALITY USING OBJECT LIST - An apparatus to provide augmented reality includes an image acquisition unit to acquire an image including a target object, a supplementary information acquisition unit to acquire supplementary information, an object recognition unit to recognize the target object from the acquired image, and a candidate nomination unit to generate candidate objects based on the supplementary information. A method for providing augmented reality includes transmitting, at a terminal, an image including a target object or supplementary information of the target object, and location information of the terminal to a server; and determining, at the server, whether the target object is recognized, and generating a list of candidate objects based on the supplementary information, if the target object is not recognized.03-08-2012

Chang Joo Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100318202MESSAGE STRING CORRESPONDENCE SOUND GENERATION SYSTEM - The invention relates to a system for generating various sounds corresponding to character strings resulting from an operation of an input device of a mobile communication terminal or computer terminal. The system comprises: a message input unit with which a character message to be transmitted is inputted in a transmitting terminal; a message setting unit that inputs a message to be transmitted to the message input unit and sets a type of the message as sound message; a user authentication unit that is connected to a communication network and confirms whether the user is a service subscriber or not when the message setting unit sets the message as sound message; a user database that is associated with the user authentication unit and stores information of the user therein; a sound generating means that, when the user is confirmed as a service subscriber by the user authentication unit, receives the message inputted through the message input unit to generate and transmit a sound corresponding to the received message to a receiving terminal; and a receiving terminal that receives the message and the sound transmitted from the sound generating means via the communication network.12-16-2010

Cheol-Hee Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20120026347DIGITAL PHOTOGRAPHING APPARATUS AND METHOD - A digital photographing apparatus includes an optical system, an optical image stabilization (OIS) unit adapted to move the optical system, and a digital signal processor in communication with the OIS unit. The digital signal processor sets an operating ratio of the OIS unit by reducing the operating ratio to a previously set value of 100% or below after a still image or a moving picture is captured, and the OIS unit moves the optical system while a live view mode is turned on.02-02-2012

Cheol Ho Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100054546Integrated resource management system - The present invention relates to an integrated resource management system, which can manage the authorization of the entry and exit of persons who enter and leave a construction site and the entry and exit of construction materials or construction equipment into and from a construction site in real time in an integrated manner, and can prevent the illegal incursion of outsiders, who are not authorized persons, and the forgery of the attendance and leave record information of entering and leaving persons through a multi-stage entry/exit authorization process.03-04-2010

Chul Chan Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20090269935Method of Forming Pattern of Semiconductor Device - A method of forming patterns of a semiconductor device, wherein a hard mask is formed over a semiconductor substrate; a photoresist comprising silicon-containing molecules is formed over the hard mask; a first exposure process is performed on first regions of the photoresist; a second exposure process is performed on second regions of the photoresist, which are located between the first regions; a bake process is performed on the photoresist; and, an etch process using the first regions and the second regions as etch mask patterns is performed, thereby patterning the photoresist and the hard mask.10-29-2009

Chul Hwan Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110259655TRACTOR HAVING HYDRAULIC LIFTING APPARATUS - Provided is a tractor having a hydraulic lifting apparatus, wherein, assuming that a lift of the hydraulic lifting apparatus is P (N), a discharge flow rate of a hydraulic pump is Q (m10-27-2011

Duk-Yong Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080299468SHADOW MASK AND METHOD OF FABRICATING VERTICALLY TAPERED STRUCTURE USING THE SHADOW MASK - A method of fabricating a vertically tapered structure. The method includes placing a spacer layer at a predetermined area on a wafer, placing a mask layer at a predetermined area on the spacer layer, and over-etching the spacer layer, by etching a certain area below the mask layer, fabricating a cantilever type shadow mask having the spacer layer and the mask layer. Thus, it is possible to fabricate the vertically tapered structure of several tens of microns. The vertically tapered structure can be used as the optical waveguide in the optical device to minimize junction loss that may occur between the optical waveguide and the optical fiber.12-04-2008

Gil Woon Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20090076520Apparatus For Treating Bone - An apparatus for treating a bone, which provides a path from the skin to a bone, is provided which comprises a cannula with an improved coupling structure, an expander, a needle, and a spacer. With the apparatus, operation time can be reduced. The cannula and the expander can be easily combined together or separated from each other. Further, the needle can be easily removed from the bone. In addition, an insertion space for a cavity-forming instrument, such as a balloon catheter, can be easily obtained inside the bone.03-19-2009
20090182378FLEXIBLE ROD FOR FIXING VERTEBRAE - A flexible rod for fixing vertebrae is connected to a vertebral fixing device in order to maintain a damaged or deformed vertebra in an original stable state and impart flexibility. The flexible rod comprises a plurality of support bars, each of which has an insertion recess that has internal threads on an open side thereof; a plurality of rings, which is disposed between the support bars and has internal threads; a spring, which has a spiral structure so as to be able to be coupled into the support bars in engagement with the threads of the support bars; and an elastic bar, which is inserted into the support bars through the center of the spring.07-16-2009

Hoe-Kwang Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100007590METHOD FOR ARRANGING LIGHT EMITTING DIODE MODULE, DATA CONVERTING METHOD FOR DISPLAYING MOVING PICTURE BY USING LIGHT EMITTING DIODE MODULE AND DATA CONVERTING APPARATUS THEREFOR - Disclosed is a method for arranging light emitting diode (LED) modules, a data converting method for displaying a moving picture by using the LED modules and a data converting apparatus therefor. The apparatus includes: a data storage module for storing the moving picture and the image data; and a data conversion module for converting the moving picture into images according to frames, arranging the plurality of LED modules by matching the plurality of LED modules to the image according to each frame, determining locations of the plurality of LED modules, extracting color coordinates of each central point of regions in which the plurality of LED modules have been arranged from the image according to each frame, and generating color coordinates according to the locations as the image data. Accordingly, when a moving picture or a flash is output by means of LED modules, the moving picture or flash can be converted into image data so that a fine and smooth image just like an actual moving picture or flash can be output.01-14-2010

Hwan-Young Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080303180METHOD OF MANUFACTURING ALL-IN-ONE TYPE LIGHT GUIDE PLATE - Provided is a method of manufacturing an all-in-one type light guide plate. The method includes: fabricating a master including a plurality of inverse-prism shape structures; forming an elastic mold by applying an elastomer on the master; and fabricating the all-in-one type light guide plate, on which a plurality of inverse-prism shape structures are integrally formed, by applying a light transmissive material on the elastic mold.12-11-2008

Patent applications by Hwan-Young Choi, Anyang-Si KR

Hwi Kyu Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100158566IMAGE FORMING APPARATUS AND TRANSFER DEVICE THEREOF - An image forming apparatus and a transfer device disclosed herein are configured to move positions of transfer rollers to perform different modes of printing operation, such as black-and-white and color printing. The image forming apparatus may include a plurality of photosensitive bodies, on each of which an image may be formed, and a plurality of transfer units. Each transfer unit includes a transfer roller arranged to correspond to an associated one of the photosensitive bodies and an elastic member configured to press the transfer roller to the corresponding photosensitive body. The image forming apparatus further includes a slider configured to move along a linear direction. The slider is configured to cause at least one of the transfer rollers of the transfer units move away from the corresponding photosensitive body. The slider may be driven by a drive unit.06-24-2010

Hyun-Min Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080246092Semiconductor device structure with strain layer and method of fabricating the semiconductor device structure - A semiconductor device with a strain layer and a method of fabricating the semiconductor device with a strain layer that can reduce a loading effect are provided. By arranging active dummies and gate dummies not to overlap each other, the area of active dummy on which a strain layer dummy will be formed can be secured, thereby reducing the loading effect.10-09-2008

In Sang Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110313267BLOOD GLUCOSE MONITORING SYSTEM, STRIP ACCOMMODATION DEVICE, STRIP STORAGE DEVICE, AND AUTOMATED BLOOD COLLECTION DEVICE - The present invention relates to a blood glucose monitoring system, a strip accommodation device, a strip storage device, and an automated blood collection device, wherein the blood glucose monitoring system has the strip accommodation device formed integrally therewith, the strip accommodation device being configured to convert a rotary motion of a cover of an operating member into an upward linear motion and to eject one of a plurality of strips through an ejection hole, thereby easily storing the strips therein, preventing the contamination of the strips from the foreign matters like outside moisture, and accurately and easily measuring the concentration of the glucose in the blood.12-22-2011

Jaegu Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100011638ADVERTISEMENT BOARD - An advertisement board, which comprises one or more light emitting diodes capable of full-color display, one or more advertisement sheets, a light guide plate, and a frame, comprises: a frame which is provided with a containing portion for containing the one or more light emitting diodes, the one or more advertisement sheets, and the light guide plate, and parts of which are openable and closable in order to easily replace the one or more advertisement sheets; the one or more light emitting diodes placed at one side of the frame; the one or more advertisement sheets located on the light emitting diodes, and displaying advertisement contents by the light emitted from the light emitting diodes; the light guide plate which is located on the rear surface of the one or more advertisement sheets, diffuses the light emitted from the light emitting diodes, and sends the light to the one or more advertisement sheets to make the picture quality of the advertisement contents clearer01-21-2010

Jae Seok Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100139602Intake Manifold for Vehicle and Intake System Including the Same - An intake system of an engine for a vehicle, may include a surge tank including a first flange, and an intake manifold including a second flange connected with the first flange of the surge tank, wherein the intake manifold may include a main body including a fuel rail and intake ports corresponding to cylinders, and a guide member provided on the main body to guide the surge tank coupled with the main body in a direction where the surge tank becomes separated and more distant from the fuel rail of the intake manifold when a vehicle collision occurs.06-10-2010

Jong Seong Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20090128508MULTI TOUCH FLAT DISPLAY MODULE - A display module including a touch panel configured to be touched so as to input information, a liquid crystal display panel disposed below the touch panel and configured to display the information to be touched on the touch panel, a plurality of emitting light units configured to emit infrared light formed in at least two sides of the touch panel, a plurality of image sensors disposed below the liquid crystal panel and configured to detect infrared rays redirected through the liquid crystal panel towards the image sensors based on a touching of the touch panel, and a controller configured to determine a portion of the touch panel that is touched based on signals received from the plurality of image sensors.05-21-2009
20090251425Multi-touch system and driving method thereof - Provided are a multi-touch system and a driving method thereof. The method includes, extracting using a digital processor a touch frequency and at least one angle associated with at least one touch from image information captured by each of at least two cameras, selecting a touch mode on the basis of sum value of the touch frequencies extracted from the image information captured by the cameras, and performing a touch function corresponding to the selected touch mode using a user interface.10-08-2009
20090267889DISPLAY DEVICE - A display device capable of simplifying the structure and improving the reliability is disclosed. The display device includes an LCD module having a top case formed of metal, a glass substrate arranged on the LCD module, an infrared ray emitting module arranged to face three side surfaces of the LCD module and having a first magnet for first fixing to the top case, and a pair of infrared ray detection units arranged at corner ends of a side surface of the LCD module where the infrared ray emitting module is not arranged and having a second magnet for the first fixing to the top case.10-29-2009

Jung-Ae Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110135136CUSTOMIZED EARPHONE - An earphone and method for forming the same are provided. The earphone includes an earphone housing, a speaker, and an earcap. The earphone housing includes a speaker mounting portion. The speaker is fixed to the earphone housing, and has a cable that passes through the body and is drawn from the body. The earcap is installed to at least partially enclose the speaker and the housing, and has at least one speaker sound emitting hole therein. The earcap is made of a material that solidifies after a predetermined time elapses, and is manufactured by inserting the material into an ear of a user, and then solidifying the material such that it is suited for a shape of the ear of the user.06-09-2011

Kwang Do Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110207928PURIFICATION METHOD FOR ADEFOVIR DIPIVOXIL - The present invention relates to a novel method of purifying adefovir dipivoxil of Formula 1. The purification method according to the present invention comprises the steps of dissolving impure adefovir dipivoxil containing byproducts generated during a synthetic reaction, salts thereof or complexes thereof in water or a water-containing mixed solvent; purifying the adefovir dipivoxil solution through a reverse-phase column; and adding a base to the purified adefovir dipivoxil solution and extracting the same with an organic solvent.08-25-2011
20110207930IMPROVED PRODUCTION METHOD FOR ADEFOVIR DIPIVOXIL - The present invention relates to an improved method of preparing adefovir dipivoxil of Formula 1. The method of the present invention is characterized by using dimethylsulfoxide as a reaction solvent, and comprises a process of preparing adefovir dipivoxil of Formula 1 by allowing adefovir of Formula 2 to react with chloromethylpivalate at a reaction temperature of 30 to 50° C. under the presence of dimethylsulfoxide and triethylamine solvents.08-25-2011

Kyung-Sik Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20120060226METHOD FOR AUTHORIZING USE OF AUGMENTED REALITY (AR) INFORMATION AND APPARATUS - A method for authorizing use of Augmented Reality (AR) information includes acquiring information regarding a location at which the AR information is to be provided, authorizing a user to use the AR information, creating attribute information including the AR information, the location information, and authority information, and transmitting the attribute information to an AR system. The AR system can register the attribute information, and can provide the AR information only to authorized users. An apparatus to authorize use of Augmented Reality (AR) information includes a location information acquiring unit, an authorization unit to authorize a user to use the AR information, and an AR information processor to create attribute information. The attribute information is transmitted to an AR system as a request for the AR system to register the attribute information so the AR system provides the AR information only to authorized users.03-08-2012

Pil-Soon Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080304514METHOD AND APPARATUS FOR COMMUNICATING WITH A HETEROGENEOUS TERMINAL - Provided are a method and apparatus for communicating with a heterogeneous terminal, more particularly, a method and apparatus for communicating with a heterogeneous terminal in which the communication between terminals using different modulation methods can be initialized by transmitting throughout a network a preamble with a waveform that is commonly used in the network. The apparatus includes a preamble-generation unit which generates a preamble having a plurality of sequences corresponding to a combination of a modulation method and a waveform that are to be applied to a packet; and a communication unit which attaches the preamble to the packet and then transmits the packet.12-11-2008
20100135259METHOD AND APPARATUS FOR CHANGING COMMUNICATION LINK BETWEEN SOURCE DEVICES AND SINK DEVICES - Provided is a method of changing a communication link between source devices and sink devices. The method includes in a first downlink period, broadcasting an uplink period allocation message to the sink devices and passive source devices by an active source device, which establishes a communication link with a primary sink device from among the sink devices; during a first uplink period, broadcasting by a primary passive source device a link set message for establishing a communication link with the primary sink device to all the source devices in the network; during a second downlink period, relaying the link set message to all the sink devices in the network, wherein the link set message is relayed by the active source device; and during a second uplink period, establishing a communication link between the primary sink device and the primary passive source device by the primary sink device.06-03-2010
20100309827METHOD AND APPARATUS FOR PROCESSING SIGNALS AT TIME DIVISION DUPLEX TRANSCEIVER - Provided is a time division duplex (TDD) transceiver. A receiver chain processing received signals and a transmitter chain processing signals to be transmitted share an electronic component used in a circuit, such as an amplifier, a mixer, a filter, etc., so that the size of a semiconductor die needed to manufacture a radio frequency (RF) chip can be reduced.12-09-2010

Sangbeom Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20120016146POROUS CRYSTAL COMPRISING AMMONIA BORANE AND A PRODUCTION METHOD THEREFOR - Disclosed does a porous crystal comprising ammonia borane in which the ammonia borane is chemically bonded thereto by a chemical reaction while a porous crystal structure is maintained.01-19-2012

Sang Beom Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110230678ORGANIC FRAMEWORK - Disclosed is an organic framework including: planar layers formed by successively connecting building blocks arranged in the vicinity of each other, in which each of the building blocks includes two or three C09-22-2011

Seung Deog Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100027447Method Of Transmitting Scheduling Information In TDD System - A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.02-04-2010

Se Yeong Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110044240Method for transmitting a packet at a base station in a network using multiple communication schemes - A method of transmitting a packet, at a MS and base station operable using multiple communication schemes is disclosed. The base station of the multiple communication schemes receives a packet from the MS and then determines a transmission path based on a link status of a network, a traffic characteristic of the packet and the like. The base station transmits the packet of the first communication scheme via a network using a second communication scheme, thereby enabling traffic redirection. Such a resource as a frequency band and the like, which will be used between networks using different communication schemes, can be cooperatively set between the MS and the base station.02-24-2011

Song-Ha Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20120092529METHOD FOR PROCESSING AN IMAGE AND AN IMAGE PHOTOGRAPHING APPARATUS APPLYING THE SAME - A method of processing an image and an image photographing apparatus applying the same. The image processing method includes obtaining a main image and a sub image from the first lens and the second lens respectively, detecting a main object of the main image, moving the sub image to a first area of the main image so as not to be overlapped with the main object of the main image, and displaying the main image and the sub image therein simultaneously. Accordingly, a user may view the main image without any interference of the sub image displayed on a display unit.04-19-2012

Sung Chun Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20080231163PLASMA DISPLAY PANEL AND METHOD FOR MANUFACTURING THE SAME - A plasma display panel and a method for manufacturing the same are disclosed. The plasma display panel includes a first substrate comprising first electrodes, a second substrate arranged to face the first substrate, the second substrate comprising second electrodes, barrier ribs formed between the first and second substrates, to define discharge cells, and a phosphor layer formed in each of the discharge cells. The phosphor layer includes a phosphor and a dielectric having a secondary electron emission coefficient higher than the phosphor.09-25-2008
20080265740PLASMA DISPLAY PANEL AND METHOD FOR FABRICATING THE SAME - A plasma display panel is disclosed, which includes a first panel provided with an address electrode, a first dielectric, and a phosphor on a first substrate, and a second panel bonded to the first panel by interposing a barrier therebetween, including a transparent electrode, a bus electrode, a second dielectric provided with high dielectric particles, and a protective layer on a second substrate.10-30-2008

Patent applications by Sung Chun Choi, Anyang-Si KR

Sung Duk Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100067479METHOD FOR ALLOCATING RESOURCE, AND METHOD FOR TRANSMITTING RESOURCE ALLOCATION INFORMATION - A resource allocation method and a resource allocation information transmission method are provided. Smallest units of resource allocation are set as basic resource blocks and groups of a specific number of basic resource blocks are set as group resource blocks. Resources can be allocated in units of basic resource blocks or in units of group resource blocks depending on the amount of resources required for data transmission of each UE. Resource allocation information for allocation in units of basic resource blocks is set to be different from resource allocation information for allocation in units of group resource blocks, thereby achieving efficient allocation of communication resources.03-18-2010
20100113085METHOD FOR EFFECTIVELY TRANSMITTING SYNCHRONIZATION CHANNEL AND METHOD FOR ALLOCATING TRANSMISSION POWER FOR THE SAME - A method for effectively allocating a transmission power and a method for transmitting SCH are disclosed. In this case, the transmission power of the SCH, which is important for initial cell search of the user equipment, is increased but is not allocated to a predetermined frequency region within one OFDM symbol to obtain the increased transmission power, thereby minimizing an influence on transmission of other channels within one OFDM symbol.05-06-2010
20120069810METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.03-22-2012
20120082112METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.04-05-2012
20120082113METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.04-05-2012

Wooyong Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20090262908METHOD FOR PROVIDING EARLY-MEDIA SERVICE BASED ON SESSION INITIATION PROTOCOL - The present invention relates to a method of providing an early media service based on a session initiation protocol (SIP), wherein early media of a multimedia form can be provided under SIP-based B2BUA mode operation. According to the present invention, in a case where early media are provided to an originating terminal when a call connection with a terminating terminal is established at the request of the originating terminal, the early media is provided in the form of multimedia data, such as text, image, moving image, flash animation and the like, as well as audio data, and thus users desires are fulfilled and users satisfactions are maximized. In addition, with individual operation management of the terminating terminal and the originating terminal according to B2BUA mode operation based on the session initiation protocol and an early session initiation with the originating terminal, an early media service can be normally provided to the originating terminal even when the terminating terminal is in an abnormal operation state.10-22-2009

Yeongha Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20110110533MULTIBAND DRC SYSTEM AND METHOD FOR CONTROLLING THE SAME - A multiband DRC system and a method for controlling the same are disclosed. In accordance with the present invention, the system and the method are capable of increasing an overall loudness of an output signal by controlling thresholds and gains of plurality of DRCs included in the multiband DRC system according to frequency bands.05-12-2011
20110181356SWITCHING DEVICE OF DIGITAL AMPLIFIER AND METHOD FOR DRIVING THE SAME - A switching device of a digital amplifier and a method for controlling the same are disclosed. In accordance with the present invention, a linearity is maintain even for a short pulse width since a data signal having a pulse width shorter than a predetermined length. Moreover, when an MLP signal is located at both sides of a compensating signal without overlapping with each other, a problem due to a common mode may be prevented.07-28-2011
20110222702POWER SUPPLY CIRCUIT INCLUDING VOLTAGE REGULATOR AND HEADPHONE DRIVING CIRCUIT EMPLOYING THE SAME - A power supply circuit including a voltage regulator and a headphone driving circuit employing the same are disclosed. In accordance with the present invention, the power supply circuit may provide stable power supply to the amplifier since the power supply circuit generates the constant voltage +Vreg and the constant voltage −Vreg from +VDD robust to stronger than a power noise, and the balanced signal path for isolating the noise of the input signal to be amplified is not required, thereby simplifying the constitution of the circuit09-15-2011

Yoon-Hee Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20090080256FLASH MEMORY DEVICE AND PROGRAMMING METHOD - Provided are a flash memory device and method of controlling certain program operation voltages. The flash memory device includes a high voltage generation circuit providing a high voltage to a block selection circuit and a program voltage to a row decoder. The high voltage generation circuit includes a charge pump, a high voltage control circuit controlling the charge pump to provide the high voltage, and a program voltage control circuit providing the program voltage in relation to the high voltage, wherein the high voltage control circuit and the program voltage control circuit operate in response to the same control code.03-26-2009
20100001710REFERENCE VOLTAGE GENERATING CIRCUIT - A reference voltage generating circuit provides a stabilized reference voltage and includes; a clock generator providing a clock signal, a high voltage generator providing a pumping voltage in response to the clock signal, a ripple eradicator providing a static voltage by removing voltage ripple from the pumping voltage, and a reference voltage generator providing the reference voltage.01-07-2010
20110058427FLASH MEMORY DEVICE CONFIGURED TO REDUCE COMMON SOURCE LINE NOISE, METHODS OF OPERATING SAME, AND MEMORY SYSTEM INCORPORATING SAME - A flash memory device comprises memory cells connected between a bit line and a common source line, word lines connected to the memory cells, a common source line feedback circuit connected to a common source line (CSL) to detect the voltage level of the common source line, and a CSL feedback control logic configured to control a voltage level of a selected word line or a selected bit line to be compensated to a substantially constant value during a sensing operation of the memory cells based on the detected voltage level of the CSL.03-10-2011

Patent applications by Yoon-Hee Choi, Anyang-Si KR

Youngseob Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20120057519METHOD FOR TRANSMITTING CONTROL SIGNAL TO RELAY NODE AT BASE STATION IN MIMO WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting a control signal to a relay node at a base station in a multi-input multi-output (MIMO) wireless communication system is disclosed. The method comprises configuring relay-resource element groups (R-REGs) in a unit of four resource elements (REs) contiguous in the ascending order of subcarrier indexes, except for resource elements for a reference signal (RS); allocating transmission resources to the control signal in a unit of the relay-resource element group; and transmitting the control signal to the relay node by using the allocated transmission resources, wherein the resource elements for the reference signal include resource elements for channel state information-RS (CSI-RS), which include resource elements for a channel state information RS to which a transmission power of 0 is allocated.03-08-2012

Young Seob Choi, Anyang-Si KR

Patent application numberDescriptionPublished
20100054173RELAY STATION AND METHOD OF OPERATING THE SAME - A relay station and a method of operating a relay station are disclosed. The method includes decoding a received signal to restore the received signal into an information packet, and obtaining a first probability sequence representing probability information of respective information bits constituting the information packet, encoding the information packet to obtain a coded packet, and obtaining a second probability sequence representing probability information of respective coded bits constituting the coded packet by using the first probability sequence, and obtaining a modulated symbol by using the second probability sequence.03-04-2010
20100322180METHOD FOR TRANSMITTING SCHEDULING INFORMATION IN MOBILE COMMUNICATION SYSTEM AND FEMTOCELL BASE STATION APPARATUS USING THE SAME - A method for transmitting scheduling information in a mobile communication system and a femtocell base station apparatus using the same are provided. Scheduling information can be transmitted using a hierarchical scheduling scheme in which a femtocell base station is allocated resources from a macrocell base station and the femtocell base station then allocates resources to femto users within its own resource region.12-23-2010
20110002322DATA TRANSMISSION METHOD IN A MULTI-CARRIER SYSTEM, AND TRANSMITTER - A transmitter includes a plurality of transmit antennas, a processor configured to process user data, and a single carrier frequency division multiple access (SC-FDMA) signal generator configured to receive the user data and generate SC-FDMA symbols transmitted through the plurality of transmit antennas. The SC-FDMA signal generator independently performs inverse fast Fourier transform (IFFT) for each transmit antenna, and each of the plurality of transmit antennas is associated with each of a plurality of carriers.01-06-2011
20110299614METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL FROM RELAY STATION IN RADIO COMMUNICATION SYSTEM - A method for a transmitting and receiving a signal from a relay station in a radio communication system is provided. The method comprises the steps of: receiving offset time information from a base station; configuring a time difference between an access downlink transmission subframe that transmits an access downlink signal to a relay station terminal according to the offset time information and a backhaul downlink reception subframe that receives a backhaul downlink signal from the base station; transmitting a control signal from the access downlink transmission subframe to the relay station terminal; and receiving the backhaul downlink signal from the base station in the backhaul downlink reception subframe.12-08-2011
20110310778METHOD AND APPARATUS FOR RELAYING DATA IN WIRELESS COMMUNICATION SYSTEM - A method of relaying data in a wireless communication system is provided. The method comprises: receiving data, transmitted over a first subframe from a base station, over a second subframe; and relaying the data to a user equipment over a third subframe which is placed after one or more subframes from the second subframe, wherein at least any one of the first and the second subframes is a non-detection subframe to which the user equipment does not attempt data detection. According to the present invention, the wireless communication system enables efficient data transmission between a base station and a relay station as compared to conventional subframe-configurated systems. Furthermore, the wireless communication system enables data transmission with improved wireless resource allocation efficiency12-22-2011