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Chan Ho

Chan Ho Hong, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20090241289HINGE APPARATUS HAVING AUTOMATIC RETURN FUNCTION FOR USE IN BUILDING MATERIALS - A hinge apparatus having an automatic return function for building materials is provided, in which a return spring is removed to thereby offer a closing force of each door with only a torsion spring. The hinge apparatus includes an upper body; a lower body; a shaft whose lower end portion is rotatably installed in the lower body; a piston whose outer circumference is slidably installed along the inner surface of the lower body”, a rotational/linear motion converter which converts a rotational motion of the shaft into an axial linear motion of the piston according to rotation of the door; a damping unit which provides a damping function selectively where the piston ascends according to return of the door; a torsion spring which rotates the shaft in the direction returning the door at the closing time; and a clutch unit for stopping an increment of an elastic force due to reverse twisting of the spring where an opening angle reaches a clutch stop start angle, or for restoring the elastic force of the spring.10-01-2009

Chan Ho Hong, Ansan-Si KR

Patent application numberDescriptionPublished
20110041285SEPARATED TYPE HINGE APPARATUS WITH RETURN FUNCTION - The present invention relates to a hinge apparatus for a door, and more particularly, to a separated type hinge apparatus with an automatic return function, in which a restoring device and a damping device are installed separately so that the overall length of the hinge apparatus is reduced, and thus the hinge apparatus may be buried less deeply. A separated type hinge apparatus comprises: an elastic casing; a first elastic member that provides a restoring force; a clutch device which is combined with one end of the first elastic member and controls the elastic force of the first elastic member to remain constant; a shaft penetratively combined through the clutch device in order to transmit a rotational force; and a spring fixing member which is coupled to the other end end of the first elastic member and has a gear groove to control a spring elastic force.02-24-2011

Chan Ho Jeong, Seoul KR

Patent application numberDescriptionPublished
20090152889Apparatus for locking double-folding seat for vehicles - An apparatus for locking a double-folding seat for vehicles includes a latch plate, a guide unit, a release lever unit and a locking pin. The latch plate has a locking notch therein and is fastened to a seat frame. The guide unit is fitted over a folding shaft of the seat frame at a position spaced apart from the latch plate. The release lever unit is provided on the folding shaft so as to be rotatable. The locking pin is elastically connected to the release lever unit such that the locking pin is locked to the locking notch of the latch plate when the seat frame is folded. Furthermore, when the release lever unit is rotated, the release lever unit pushes the locking pin, so that the locking of the locking pin to the locking notch of the latch plate is released.06-18-2009
20100045087Side Bolster Apparatus for Automobile Seat - The side bolster apparatus includes a pressing unit formed on one side of a foldable seat back and rotating around a rotating shaft of the seat back, bolster installed so as to protrude from a rear side of the seat back, and an external force transmitting unit receiving external force from the pressing unit when the seat back is unfolded and transmitting the received external force to the bolster such that the bolsters protrude from the seat back.02-25-2010
20100052372Headrest Apparatus Moveable in Cooperation with Seat Back - A headrest apparatus may include a headrest fixing member connected to a headrest assembly, a guide member connected to a seatback frame inside the seat back, wherein the guide member including a guide portion and a locking portion guides forward and backward movement of the headrest fixing member, at least an elastic member coupling the guide member and the headrest fixing member and configured to bias the headrest fixing member in the forward direction of the seat back so that the headrest fixing member moves in the forward direction and then is locked to the locking portion of the guide member by the elastic member when the seat back is unfolded, and a locking release unit pivotally coupled to the guide member and configured to release the headrest fixing member from the locking portion of the guide member in accordance with the seat back when the seat back is folded.03-04-2010
20100127545Double Folding Seat for Vehicle - A double folding seat for a vehicle may include a stationary bracket, coupled to the seatback frame and to the cushion frame, wherein the recliner bracket is coupled to the one end of the stationary bracket, a link unit elastically installed on the stationary bracket and configured to be selectively coupled to the recliner bracket and transmit a rotating force of the recliner bracket to a latch cam installed to the cushion frame, a stopper fixedly installed on the leg assembly which is connected to a vehicle body, a hinge member rotatably mounted on the cushion frame and rotated by the stopper, and an actuating wire connecting the hinge member and the link unit and displacing the link unit by a rotation force of the hinge member to a position where the link unit cooperates with the recliner bracket when the cushion frame moves backwards to the final position thereof.05-27-2010
20110133535FOLD-AND-DIVE SEAT ASSEMBLY FOR VEHICLE - A fold-and-dive seat assembly for a vehicle is disclosed. The fold-and-dive seat assembly includes a seat cushion dived downward toward a floor panel by means of a dive link, a seat back connected to the seat cushion by a connection link, and rotatably connected to the floor panel to be folded toward the seat cushion, a head rest provided on an upper end of the seat back, a sliding unit, connected to the head rest and the seat back, for moving the head rest in a back and forth direction in a sliding manner, and a slid driving member for operating the sliding unit in link with the dive link, upon folding and diving, to slide the head rest in a rearward direction.06-09-2011
20110221238HEADREST APPARATUS MOVEABLE IN COOPERATION WITH SEAT BACK - A headrest apparatus may include a headrest fixing member connected to a headrest assembly, a guide member connected to a seatback frame inside the seat back, wherein the guide member including a guide portion and a locking portion guides forward and backward movement of the headrest fixing member, at least an elastic member coupling the guide member and the headrest fixing member and configured to bias the headrest fixing member in the forward direction of the seat back so that the headrest fixing member moves in the forward direction and then is locked to the locking portion of the guide member by the elastic member when the seat back is unfolded, and a locking release unit pivotally coupled to the guide member and configured to release the headrest fixing member from the locking portion of the guide member in accordance with the seat back when the seat back is folded.09-15-2011

Patent applications by Chan Ho Jeong, Seoul KR

Chan Ho Jung, Seoul KR

Patent application numberDescriptionPublished
20090007222APPARATUS AND METHOD FOR MANAGING DIGITAL RIGHTS MANAGEMENT CONTENTS IN PORTABLE TERMINAL - Provided is an apparatus and method for managing Digital Rights Management (DRM) contents in a portable terminal. The method includes when a license of the DRM content is consumed, changing license information, which is stored in an external memory, on the DRM content; storing information relating to changed data of the external memory into an internal memory; determining whether the changed license information stored in the external memory has changed by using the information stored in the internal memory when the DRM content is used; and determining whether the DRM content is available according to whether the changed license information has changed.01-01-2009
20090043866License acquisition scheme indication method and mobile terminal therefor - A license acquisition scheme indication method and mobile terminal implemented with the license acquisition indication method is provided for informing a user of available license acquisition scheme in a current connectivity environment. A license acquisition scheme indication method of the present invention collects access information of at least one content server issuing licenses required for playing right protected files, attempts access to the at least one content server in one of a direct license acquisition scheme and an indirect license acquisition scheme on the basis of the access information, and displays identities of the individual right protected files with available license acquisition schemes determined as a result of the access attempts.02-12-2009

Chan Ho Kim, Seoul KR

Patent application numberDescriptionPublished
20090147583SEMICONDUCTOR MEMORY DEVICE HAVING MAT STRUCTURE - A semiconductor memory device having a mat structure. The semiconductor memory device may comprise a first mat having a plurality of first memory cells and a second mat having a plurality of second memory cells. The first and second mats are formed in a single well region. The first and second mats may share a first well of a first conductivity type, and the first well may be formed in a second well of a second conductivity type. The second well may be formed in a semiconductor substrate of the first conductivity type. As a result, the semiconductor memory device according to embodiments of the present invention provide for higher integration density.06-11-2009
20100020618NON-VOLATILE MEMORY DEVICE AND MEMORY SYSTEM - A nonvolatile memory device includes a plurality of memory cells connected to a wordline and arranged in a row direction, bitlines connected to the plurality of memory cells, respectively, and a bitline bias circuit configured to separately control bias voltages provided to the bitlines according to positions of the memory cells along the row direction.01-28-2010
20100195407READ OPERATION METHOD OF MEMORY DEVICE - A read operation method of a memory device includes applying a first voltage to each of a first memory cell and a second memory cell during a first read operation, applying the first voltage to the first memory cell and a second voltage to the second memory cell during a second read operation, and applying the second voltage to the first memory cell and the first voltage to the second memory cell during a third read operation.08-05-2010
20110194353METHOD OF PROGRAMMING MEMORY CELLS FOR A NON-VOLATILE MEMORY DEVICE - A method of programming memory cells for a non-volatile memory device is provided. The method includes performing an incremental step pulse program (ISPP) operation based on a program voltage, a first verification voltage, and a second verification voltage, and changing an increment value of the program voltage based on a first pass-fail result of the memory cells, the first pass-fail result being generated based on the first verification voltage. The ISPP operation is finished based on a second pass-fail result of the memory cells, the second pass-fail result being generated based on the second verification voltage.08-11-2011
20110205797METHOD AND APPARATUS FOR PERFORMING MULTI-BLOCK ACCESS OPERATION IN NONVOLATILE MEMORY DEVICE - A nonvolatile memory device comprises a first mat, a second mat, a third mat, a first address decoder, a second address decoder, and a third address decoder. The first mat comprises first memory blocks, the second mat comprises second memory blocks, and the third mat comprises third memory blocks. The first address decoder selects one of the first memory blocks according to a first even address, the second address decoder selects one of the second memory blocks according to a second even address or a first odd address, and the third address decoder selects one of the third memory blocks according to a second odd address.08-25-2011

Patent applications by Chan Ho Kim, Seoul KR

Chan Ho Kim, Incheon-Shi KR

Patent application numberDescriptionPublished
20110298666MIMO ANTENNA HAVING PARASITIC ELEMENTS - A Multiple-Input Multiple-Output (MIMO) antenna having parasitic elements is provided. The MIMO antenna includes a plurality of antenna elements, a plurality of parasitic elements, and a bridge. The plurality of antenna elements is symmetrically disposed on one side surface of a board while maintaining a predetermined distance therebetween. The plurality of parasitic elements is disposed on the other side surface of the board in a one-to-one correspondence with the plurality of antenna elements. The bridge is formed of a metal pattern line, and is configured to connect the plurality of parasitic elements to each other.12-08-2011

Chan Ho Min, Seoul KR

Patent application numberDescriptionPublished
20090147706Frame structures, method and apparatus for resource allocation in wireless communications system based on full duplex replay - Frame structures, a method and an apparatus for resource allocation in a wireless communication system based on a full duplex relay are provided. The method for a centralized resource allocation in the wireless communication system based on the full duplex relay includes receiving channel information from a plurality of mobile stations (MSs) and relay stations (RSs); scheduling radio resources for a link between a base station (BS) and the MS and a link between the BS and the RS using the channel quality; constituting a first radio resource region for the link between the BS and the RS and a second radio resource region for the link between the BS and the MS; and scheduling radio resource for a link between the RS and the MS by reusing the first radio resource region. The relay link resource is reused in the full-duplex relay structure, and the system capacity can be raised by minimizing the interference in the resource utilization.06-11-2009
20090303953METHOD AND APPARATUS FOR SUPPORTING IDLE MODE OF MOBILE STATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for supporting an idle mode of a Mobile Station (MS) in a superframe-based wireless communication system are provided. In a method for operating an MS to support an idle mode in a superframe-based wireless communication system, a paging listening interval is determined based on a Broadcast CHannel (BCH) information Transmit (TX) interval. BCH information including paging information is received during the paging listening interval. The inclusion/non-inclusion of a paging advertisement (MOB_PAG-ADV) message is detected based on the BCH information.12-10-2009
20100003956APPARATUS AND METHOD FOR COMMUNICATION OF MOBILE STATION OF SHADOW AREA IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for communication of a Mobile Station (MS) of a shadow area in a mobile communication system are provided. The method includes determining whether an Emergency Ad-hoc Relay (EAR) amble is received and transmitting a help signal when the EAR amble is not received.01-07-2010
20100177738METHOD AND APPARATUS FOR OPERATING MOVING NETWORK IN A MOBILE COMMUNICATION SYSTEM - A method and an apparatus for operating a moving network in a mobile communication system are provided. A method of a Base Station (BS) for operating a Moving Network (MN) includes determining an operation mode of the MN in a cell by collecting information of the cell, and transmitting the determined operation mode to the MN. The operation mode includes at least one of an Operation ON mode in which the MN maintains links to Mobile Stations (MSs) in a service coverage area of the MN, and an Operation OFF mode in which the MN turns off the links to the MSs in the service coverage area of the MN.07-15-2010
20100260156Apparatus and method for transmitting system information block in a broadband wireless communication system - An operation method of the femto BS includes configuring a subframe set including at least two types of subframes among subframes having predefined different structures, and, if a duration of a subframe carrying the subframe set arrives, transmitting one of the subframes included in the subframe set according to predefined order. The subframes having the predefined different structures include a first type subframe including a synchronization signal and a Master Information Block (MIB), a second type subframe including the synchronization signal, a third type subframe including the synchronization signal and system information, a fourth type subframe including the synchronization signal, the MIB, and the system information, and a fifth type subframe including the system information.10-14-2010
20110058514METHOD AND SYSTEM FOR REQUESTING ALLOCATION OF BANDWITH AND ALLOCATING BANDWITH IN A MULTI-HOP RELAY ENVIRONMENT - The present invention relates to a method and a system for requesting the allocation of bandwidth in a multi-hop relay environment. The present invention relates to a method for requesting bandwidth of a relay node in the multi-hop relay environment and a method for allocating bandwidth of a base station. In the invention, single piggybacking and multiple piggybacking based on approval-processing sub-headers are discriminated from single piggybacking and multiple piggybacking based on extensible sub-headers. Therefore, the bandwidth-requests for each CID from the base station are integrated and managed for each relay so that the message transmission and reception load may be reduced and the allocation of bandwidth may be optimized.03-10-2011
20110124312SYSTEM AND METHOD FOR PERFORMING EMERGENCY CALL IN WIRELESS COMMUNICATION NETWORK, AND BASE STATION - A system and method for performing an emergency call is disclosed that can reduce inter-cell interference. A wireless communication system for performing an emergency call includes an emergency call mobile station for requesting the emergency call; a relay mobile station for relaying the emergency call request to a serving base station; a serving base station for receiving the emergency call request via the relay mobile station, determining an emergency call transmission resource, and requesting its ambient base stations so as not to use the determined emergency call transmission resource; and ambient base stations for preventing the use of the area of the transmission resource, to which the emergency call transmission resource is allocated.05-26-2011
20110134887APPARATUS AND METHOD FOR HANDOVER IN BROADBAND WIRELESS COMMUNICATION SYSTEM FOR SUPPORTING MOBILE RELAY STATION - An apparatus and a method for handover in a broadband wireless communication system supporting a Mobile Relay Station (MRS) are provided. The method includes transmitting a Connection ID (CID) of Mobile Stations (MSs), the CIDs pre-allocated by a target BS, to the MSs; sending a resource allocation message comprising uplink resource allocation information for bandwidth request of the MSs, to the MSs; receiving a bandwidth request message which comprises security authentication information of each MS, from the MSs using an uplink resource allocated through the uplink resource allocation information; and aggregating bandwidth request messages of the MSs and sending a ranging request message comprising the security authentication information and bandwidth request information of the MSs to the target BS. Thus, the handover delay time, which is inevitable for the bandwidth request in the conventional connection set-up procedure, can be reduced, and the handover with the reliability guaranteed can be achieved by allowing the security related processing in the network re-entry procedure.06-09-2011
20110188472METHOD AND APPARATUS FOR HANDOVER IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus ensure efficient handover in a wireless communication system even when a User Equipment (UE) moves at a high speed. A serving eNB receives interference power information of an uplink (UL) signal and interference increase/decrease information of the UL signal from at least one adjacent eNB. an adjacent eNB, for which the received interference power information indicates that interference power of the UL signal is equal to or greater than a threshold value, is selected as a target eNB for a User Equipment (UE) among the at least one adjacent eNB. Whether handover of the UE is delayed is determined based on the interference increase/decrease information received from the target eNB. And if the handover of the UE is delayed, a handover parameter is transmitted to the UE to perform handover to the target eNB.08-04-2011
20110230187COOPERATIVE SCANNING-BASED CELL RESELECTION METHOD AND SYSTEM IN WIRELESS COMMUNICATION SYSTEM - A cell reselection method and system based on a cooperative scanning of the mobile relay station and mobile stations is provided for facilitating cell reselection procedure in a Broadband Wireless Access (BWA) system. The cooperative scanning method for a moving wireless network including a mobile relay station and at least one mobile station according to the present invention includes transmitting, at the moving wireless network, a scanning request with cooperative scanning duration to a serving base station; assigning, when a scanning response, neighbor base stations to the mobile relay station and at least one mobile station; scanning, at the mobile relay station and the at least mobile station, the assigned neighbor base stations; and transmitting scanning results to the serving BS station.09-22-2011
20110256825METHOD FOR CHANGING A PREAMBLE IN MOVING NETWORK SYSTEM, AND SYSTEM FOR SAME - The present invention relates to a method for changing a preamble in a moving network system, and a system for same. The method comprises the steps of: enabling a base station to select a relay, to change a preamble thereof from at least two relays using a first preamble; enabling the selected relay to alternately transmit a signal using the first preamble and a signal using a second preamble to at least one terminal controlled by the selected relay; enabling the selected relay to judge whether the preamble of said at least one terminal is completely changed; and enabling the selected relay to transmit only the signal using the second preamble to said at least one terminal if the preamble is completely changed. The method for changing a preamble in a moving network system and the system for same according to the present invention minimizes communication cutoff time under the condition in which a mobile relay should change a preamble, to thereby effectively provide all terminals with information without a loss, and improve the utilization of a moving network.10-20-2011
20110263262APPARATUS AND METHOD FOR PROVIDING HANDOVER SUPPORT INFORAMTION IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for providing handover support information in a mobile communication system are provided. A method for an Base Station (BS) to provide information necessary for measurement report trigger performance to a Mobile Station (MS) after the MS determines neighboring BSs in a mobile communication system includes, in a case where the MS is an active mode MS, providing a Time To Trigger (TTT) independently by a specific neighboring BS to the active mode MS and, in a case where the MS is an idle mode MS, providing a reselection time period (Treselection) independently by the specific neighboring BS to the idle mode MS.10-27-2011
20110294415DATA TRANSFER METHOD, DATA TRANSMISSION APPARATUS, AND COMMUNICATION SYSTEM IN MULTI-HOP RELAY SYSTEM - The invention relates to a data transfer method in a multi-hop relay system. The data transfer method comprises: a step for allowing a base station to receive from a first terminal the channel information (H12-01-2011
20110294508APPARATUS AND METHOD FOR SUPPORTING MOBILITY IN A HETEROGENEOUS WIRELESS COMMUNICATION SYSTEM - An apparatus and method in a heterogeneous wireless communication system reconnect a Mobile Station (MS) to a previously connected cell upon occurrence of a Radio Link Failure (RLF) in a current cell when a portion of a coverage of the second cell is included in a coverage of the first cell. A Mobile Station (MS) stores system information of a first Base Station (BS) of a first cell when performing handover from the first cell to a second cell. When changed system information of the first BS is received from a second BS of the second cell, the MS updates the stored system information using the changed system information. When detecting that a connection with the second cell is lost prior to a handover from the second cell, the MS performs reconnection to the first BS using the stored system information.12-01-2011

Patent applications by Chan Ho Min, Seoul KR

Chan Ho Park, Seoul KR

Patent application numberDescriptionPublished
20090166619TEST PATTERN OF SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - A method of manufacturing a test pattern for a semiconductor device includes the steps of forming, on a semiconductor substrate, a moat mask pattern including plural moat lines patterned in a comb-shape and etching a portion of the semiconductor substrate exposed by the moat mask pattern, to form a trench. The method further includes gap-filling the trench with an insulation material to form a field separator, planarizing the semiconductor substrate having the field separator formed thereon, and forming a poly comb pattern on the planarized semiconductor substrate. The poly comb pattern is formed such that the moat lines are arranged between lines of the poly comb pattern.07-02-2009
20090199119METHOD FOR PROVIDING GRAPHICAL USER INTERFACE (GUI), AND MULTIMEDIA APPARATUS APPLYING THE SAME - A method for providing a graphical user interface (GUI) to receive a user command on a touch screen, and a multimedia apparatus using the same. The method for providing a GUI includes determining whether an enlargement command for a GUI item is received, and enlarging the GUI item. Therefore, it is possible to enable a user to operate the GUI item more correctly, and to provide the superior visual effect when the GUI item is operated.08-06-2009
20100018851CARBON NANOTUBES FOR FUEL CELLS, METHOD FOR MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME - Carbon nanotubes for use in a fuel cell, a method for fabricating the same, and a fuel cell using the carbon nanotubes for its electrode are provided. The internal and external walls of the carbon nanotubes are doped with nano-sized metallic catalyst particles uniformly to a degree of 0.3-5 mg/cm01-28-2010
20100151296ELECTRODE CATALYST FOR FUEL CELL AND FUEL CELL INCLUDING ELECTRODE HAVING ELECTRODE CATALYST - An electrode catalyst for a fuel cell and a fuel cell including an electrode having the electrode catalyst, include a non-platinum (Pt) catalyst, and a cerium (Ce) metal catalyst, both of which are supported on a carbon-based catalyst support having an improved catalytic activity at a decreased cost. The non-Pt catalyst may be at least one selected from the group consisting of Mn, Pd, Ir, Au, Cu, Co, Ni, Fe, Ru, WC, W, Mo, Se, any alloys thereof, and any mixtures thereof, and the Ce metal catalyst may be a Ce oxide.06-17-2010
20100183156AUDIO SYSTEM AND METHOD TO CONTROL OUTPUT OF THE AUDIO SYSTEM - An audio system and a method to control the output of the audio system are provided. The audio system includes a source unit having an audio signal, a receiver to receive the audio signal and generate a cancellation signal to cancel the audio signal, a first speaker to output the audio signal, and a second speaker to output the cancellation signal.07-22-2010
20110138137RECORDING MEDIUM FOR ARCHIVING DATA, RECORDING METHOD, RECORDING APPARATUS, REPRODUCING METHOD, AND REPRODUCING APPARATUS - A recording medium for archiving data, a recording method, a recording apparatus, a reproducing method, and a reproducing apparatus are disclosed. The recording medium includes a data area for recording user data and a management area for managing information recorded on the recording medium. The management information includes data archiving information.06-09-2011

Patent applications by Chan Ho Park, Seoul KR

Chan Ho Song, Seoul KR

Patent application numberDescriptionPublished
20090049850Pipe-connection searching apparatus for multi-air conditioner - A pipe-connection searching apparatus and method for a multiple air conditioner. The apparatus and method involving the identification of one of a plurality of indoor units, based on temperature criteria, and matching the one indoor unit to a corresponding one of a plurality of pipes that connect an outdoor unit to the plurality of indoor units, respectively.02-26-2009
20090056352Multi air conditioner system and auto changeover method for multi air conditioner system - A multi air conditioner system in one example performs a cooling and heating changeover by selectively granting priority to one or more indoor units, determining whether there is one or more operating indoor units with priorities, and granting a control right for auto changeover to at least one indoor unit with priority.03-05-2009
20090056357Air conditioner with service valve assembly - An air conditioner with a service valve assembly is disclosed wherein service valves are used for easy infusion and collection of refrigerant at the time of installation or detachment of separation-type multi-air conditioner mounted with a plurality of indoor units reducing the manufacturing costs and unit size. The air conditioner comprises: an outdoor unit including a compressor and heat exchanger; a plurality of indoor units including an expander and an indoor heat exchanger; a plurality of refrigerant input pipes; a first convergence piping for converging the refrigerant flowing in the plurality of refrigerant input pipes into the compressor; a second convergence piping for converging and introducing the refrigerant having passed the outdoor heat exchanger via the compressor into the plurality of indoor units; a plurality of refrigerant supply pipes; and first and second service valves for controlling fluid flow.03-05-2009

Chan Ho Yoon, Seoul KR

Patent application numberDescriptionPublished
20090070656MEMORY SYSTEM WITH ERROR CORRECTION DECODER ARCHITECTURE HAVING REDUCED LATENCY AND INCREASED THROUGHPUT - A memory system includes: a memory controller including an error correction decoder. The error correction decoder includes: a demultiplexer adapted to receive data and demultiplex the data into a first set of data and a second set of data; first and second buffer memories for storing the first and second sets of data, respectively; an error detector; an error corrector; and a multiplexer adapted to multiplex the first set of data and the second set of data and to provide the multiplexed data to the error corrector. While the error corrector corrects errors in the first set of data, the error detector detects errors in the second set of data stored in the second buffer memory.03-12-2009

Patent applications by Chan Ho Yoon, Seoul KR

Chan Ho Yoon, Daejeon KR

Patent application numberDescriptionPublished
20100189200DECODING DEVICE AND METHOD FOR MIMO SYSTEM - The present invention relates to a decoding device and method for a MIMO system. A linear process is applied to a received signal vector by using a channel matrix estimated from the received signal vector and a poly-diagonalized matrix, and a soft decision value is acquired through a trellis decode by using the linear process result. Since the linear preprocess is performed by using the poly-diagonalized matrix, it is possible to receive a MIMO signal having good packet error rate performance and less complexity. Also, since the tail-biting trellis decoding method is used based on the poly-diagonalized matrix that is generated by poly-diagonalizing the effective channel matrix during the process for eliminating the signal interference, the soft decision value for the symbol can be generated with a simple hardwired device and less operation complexity.07-29-2010

Chan Ho Yun, Seoul KR

Patent application numberDescriptionPublished
20100023873METHOD AND APPARATUS FOR PROVIDING TOOLBAR SERVICE - Disclosed herein are a method and apparatus for providing a toolbar service. The method for providing a toolbar service in a system connected to a user client via a network includes generating a file which can be edited by a user and includes at least one item information for defining an attribute of an interface displayed in a toolbar; receiving a request for download of a toolbar application from the user client; and transmitting the toolbar application including the file to the user client. The toolbar application installed in the user client updates the file according to a user's request for editing an item, parses the updated file to dynamically generate the interface of the toolbar. It is possible to provide a variety of interfaces according to a theme.01-28-2010