Patents by Inventor WOOK CHUNG
WOOK CHUNG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100096367Abstract: Provided is an apparatus for generating remote plasma, which can improve thin-film quality by preventing an arc at a bias electrode. The apparatus includes a radio frequency (RF) electrode installed inside an upper portion of a chamber, a bias electrode installed apart from the RF electrode, and including a plurality of through holes through which plasma passes, wherein a bias power is supplied to the bias electrode, a plasma generating unit formed between the RF electrode and the bias electrode, wherein a plasma gas is supplied to the plasma generating unit, and a ground electrode installed under and spaced apart from the bias electrode, and including plasma through holes corresponding to the through holes of the bias electrode, wherein a pulsed DC bias of a second voltage level, which has a first voltage level periodically, is applied to the bias electrode.Type: ApplicationFiled: August 25, 2009Publication date: April 22, 2010Applicant: Industry-University Cooperation Foundation Hanyang UniversityInventors: Hyeong-Tag JEON, Sang-Hyun Woo, Hyung-Chul Kim, Chin-Wook Chung
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Patent number: 7696758Abstract: Provided is a plasma diagnostic apparatus having a probe unit, which is inserted into a plasma or disposed at boundary of a plasma, the apparatus including: a signal supplying unit having a signal supplying source; a current detecting/voltage converting unit for applying a periodic voltage signal applied from the signal supplying unit to the probe unit, detecting the magnitude of the current flowing through the probe unit, and converting the detected current into a voltage; and a by-frequency measurement unit for computing the magnitude and phase of individual frequency components of the current flowing through the probe unit by receiving the voltage output from the current detecting/voltage converting unit as an input.Type: GrantFiled: May 2, 2008Date of Patent: April 13, 2010Assignees: Korea Research Institute of Standards and ScienceInventors: Chin-Wook Chung, Min-Hyung Lee, Sung-Ho Jang
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Patent number: 7671288Abstract: A switch apparatus for the horn device of a vehicle includes an inflator housing and a terminal unit provided in the inflator housing and configured to include a first contact element connected to the inflator and a second contact element connected to the inflator housing. A switching plate is installed using elastic members, which are spaced apart and insulated from the inflator housing, so that the switching plate makes contact with the inflator housing if the inflator housing is pressed, thereby operating the horn. A connector unit is coupled to the terminal unit with inflator wires and a horn wire, and is provided therein with a first connection element and a second connection element so that the horn wire and the inflator housing are electrically connected to each other.Type: GrantFiled: February 24, 2009Date of Patent: March 2, 2010Assignee: Hyundai Motor CompanyInventors: Tae Wook Chung, Seoung Hoon Lee
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Publication number: 20100050045Abstract: A method of encoding input data using a low density parity check (LDPC) code or decoding the encoded data is disclosed. Each index of a model matrix is expanded to an index matrix which includes two or more indexes. Each index included in the index matrix means a specific sub-matrix, and can be replaced with a corresponding sub-matrix to generate a parity check matrix.Type: ApplicationFiled: March 14, 2008Publication date: February 25, 2010Applicant: LG ELECTRONICS INC.Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Ji Ae Seok, Young Seob Lee, So Yeon Kim
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Publication number: 20100041744Abstract: Oily paclitaxel composition and formulation for chemoembolization and preparation method thereof solubilizing paclitaxel in an oily contrast medium. The composition of the present invention solubilizes paclitaxel and has an advantage of delivering anticancer drug to the target cells by chemoembolization since it is possible to visualize the blood vessel during the chemoembolization process. The present invention also relates to oily paclitaxel composition and formulation additionally comprising chemicals that prevent paclitaxel precipitation for prolonged preservation and the preparation method thereof. Since the composition of the present invention solubilize paclitaxel effectively and can be visualized during chemoembolization, it can be used for TACE to treat hepatoma and other solid tumors.Type: ApplicationFiled: August 12, 2009Publication date: February 18, 2010Applicant: Daehwa Pharm. Co., Ltd.Inventors: Hesson Chung, Seo Young Jeong, Ick Chan Kwon, Yeong Taek Park, In Hyun Lee, Jae Hyung Park, Jin Wook Chung, Young Man Kim
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Publication number: 20100031110Abstract: A data transmitting and receiving method is disclosed. In transmitting a response signal for a transmission signal from at least one transmitter, the present invention includes receiving at least one data block from the at least one transmitter, the at least one data block grouped into at least one group and then transmitted by the at least one transmitter, checking whether each data block is successfully received for the at least one data block belonging to the corresponding group per the group, selecting a transmission scheme of transmitting a response signal instructing a presence or non-presence of successful reception of the each data block to the at least one transmitter, and transmitting a response signal for the each data block to the at least one transmitter by the selected response signal transmission scheme. Hence, the present invention reduces overhead of control information necessary for data transmission.Type: ApplicationFiled: February 4, 2008Publication date: February 4, 2010Inventors: Ji Ae Seok, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, So Yeon Kim, Ji Wook Chung, Seung Hyun Kang, Wook Bong Lee
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Publication number: 20100023844Abstract: An interleaver provision method for providing a continuous length, an interleaving method, and a turbo-encoder thereof are disclosed. The interleaving method selects a basic interleaver having a proper length from among the basic interleaver set, which is predetermined to have the length represented by a multiple of the ARP fluctuation vector period. The interleaving method performs the dummy insertion and the pruning process to have the length acting as the basic-interleaver length, so that it can provide the ARP interleaver having a continuous length.Type: ApplicationFiled: October 24, 2007Publication date: January 28, 2010Applicant: LG Electronics Inc.Inventors: Seung Hyun Kang, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, Ji Wook Chung
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Publication number: 20100006409Abstract: A switch apparatus for the horn device of a vehicle includes an inflator housing and a terminal unit provided in the inflator housing and configured to include a first contact element connected to the inflator and a second contact element connected to the inflator housing. A switching plate is installed using elastic members, which are spaced apart and insulated from the inflator housing, so that the switching plate makes contact with the inflator housing if the inflator housing is pressed, thereby operating the horn. A connector unit is coupled to the terminal unit with inflator wires and a horn wire, and is provided therein with a first connection element and a second connection element so that the horn wire and the inflator housing are electrically connected to each other.Type: ApplicationFiled: February 24, 2009Publication date: January 14, 2010Applicant: Hyundai Motor CompanyInventors: Tae Wook CHUNG, Seoung Hoon Lee
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Publication number: 20090325275Abstract: 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.Type: ApplicationFiled: February 15, 2007Publication date: December 31, 2009Inventors: Jeong-Yong Choi, Dong-Sam Suh, Chang-Kwon Ko, Seung-Ju Ryu, Hyang-Soon Chang, Jin-Wook Chung, Cheong-Ho Chang
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Publication number: 20090313520Abstract: A method of encoding data using a parity check matrix, a method of decoding encoded data, and a data retransmission method using the same are disclosed. A data retransmission method in a communication system includes transmitting a codeword encoded by a first parity check matrix corresponding to a first coding rate, among at least two parity check matrixes corresponding to different coding rates, receiving NACK from the receiver in response to the codeword, and transmitting parity bits encoded by some of the second parity check matrix corresponding to a second coding rate, among the at least two parity check matrixes, to the receiver.Type: ApplicationFiled: June 15, 2007Publication date: December 17, 2009Applicant: LG ELECTRONICS INC.Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Ji Ae Seok, Young Seob Lee, So Yeon Kim
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Publication number: 20090307562Abstract: The present invention relates to a method and a transmitter for matching a size of codeword encoded by low density parity check (LDPC) code to a size of a transmission channel and in a mobile communication system. A method of adjusting a codeword size in a communication system supporting an LDPC coding scheme, comprises steps of encoding source data by using a parity check matrix, and adjusting a size of the encoded codeword to be matched to a size of a transmission channel which is determined in accordance with a capacity of the transmission channel, the size of the encoded codeword being adjusted using information associated with column weights of the parity check matrix.Type: ApplicationFiled: January 31, 2007Publication date: December 10, 2009Inventors: Young Seob Lee, Min Seok Oh, Ji Wook Chung, Ki Hyoung Cho
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Publication number: 20090249157Abstract: A method of encoding data using a parity check matrix, a method of decoding encoded data, and a data retransmission method using the same are disclosed. A method of encoding data by LDPC code using a parity check matrix includes variably selecting a specific sub-matrix from a parity check matrix in accordance with a coding rate to be used for encoding, the parity check matrix including at least two sub-matrixes, and encoding an input data stream by using the selected sub-matrix.Type: ApplicationFiled: June 7, 2007Publication date: October 1, 2009Inventors: Young Seob Lee, Min Seok Oh, So Yeon Kim, Ji Wook Chung, Ki Hyoung Cho
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Publication number: 20090155587Abstract: Multicomponent nanorods having segments with differing electronic and/or chemical properties are disclosed. The nanorods can be tailored with high precision to create controlled gaps within the nanorods or to produce diodes or resistors, based upon the identities of the components making up the segments of the nanorods. Macrostructural composites of these nanorods also are disclosed.Type: ApplicationFiled: August 22, 2008Publication date: June 18, 2009Applicant: NORTHWESTERN UNIVERSITYInventors: Chad A. Mirkin, Lidong Qin, Sungho Park, Ling Huang, Sung-Wook Chung
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Publication number: 20090126285Abstract: 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.Type: ApplicationFiled: March 16, 2006Publication date: May 21, 2009Inventors: Dong-Sam Suh, Chang-Kwon Ko, Seung-Ju Ryu, Sung-Jun Koh, Eun-Young Lee, Soo-Jin Jung, Dong-il Chang, Jun-Keun Lee, Hyun-Gi Yoon, Hyang-Soon Chang, Yong-Hyun Yoo, Jin-Wook Chung, Cheong-Ho Chang
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Publication number: 20090063926Abstract: An apparatus and method for decoding a channel code is disclosed. The method for decoding a channel code includes the steps of receiving a low density parity check (LDPC) encoded signal from a transmitting party, generating a parity check matrix by adjusting the order of rows or columns of the parity check matrix, the parity check matrix including a plurality of groups consisting of a plurality of columns, at least one of the groups including at least one row of which every element is zero (0), and iteratively decoding the received signal for each group by using the generated parity check matrix.Type: ApplicationFiled: December 27, 2006Publication date: March 5, 2009Inventors: Ki Hyoung Cho, Min Seok Oh, Young Seob Lee, Ji Wook Chung
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Publication number: 20080265903Abstract: Provided is a plasma diagnostic apparatus includes a probe unit, which is inserted into a plasma or disposed at boundary of a plasma, the apparatus includes: a signal supplying unit having a signal supplying source; a current detecting/voltage converting unit for applying a periodic voltage signal applied from the signal supplying unit to the probe unit, detecting the magnitude of the current flowing through the probe unit, and converting the detected current into a voltage; and a by-frequency measurement unit for computing the magnitude and phase of individual frequency components of the current flowing through the probe unit by receiving the voltage output from the current detecting/voltage converting unit as an input.Type: ApplicationFiled: May 2, 2008Publication date: October 30, 2008Inventors: Chin-Wook Chung, Min-Hyung Lee, Sung-Ho Jang
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Patent number: 7422696Abstract: Multicomponent nanorods having segments with differing electronic and/or chemical properties are disclosed. The nanorods can be tailored with high precision to create controlled gaps within the nanorods or to produce diodes or resistors, based upon the identities of the components-making up the segments of the nanorods. Macrostructural composites of these nanorods also are disclosed.Type: GrantFiled: June 30, 2005Date of Patent: September 9, 2008Assignee: Northwestern UniversityInventors: Chad A. Mirkin, Lidong Qin, Sungho Park, Ling Huang, Sung-Wook Chung
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Publication number: 20080126916Abstract: A low density parity check (LDPC) coding method, and more particularly, a method of executing LDPC coding using a parity check matrix is disclosed. The present invention comprises providing an information bit stream for channel encoding, and encoding the information bit stream by using a first parity check matrix including at least one row generated by combining at least two rows of a second parity check matrix.Type: ApplicationFiled: November 19, 2007Publication date: May 29, 2008Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Seung Hyun Kang, Young Cheul Yoon, Sang Gook Kim, Ji Ae Seok, Young Seob Lee, So Yeon Kim
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Patent number: 7340284Abstract: Disclosed is a device for connecting an ear-microphone to a mobile phone through an interface connector of the mobile phone. The phone includes a codec which has hands-free-kit audio transmission and reception terminals connected to the interface connector. A controller includes first and second interrupt terminals which are used for detecting whether the ear-microphone plug is connected, and whether a call connection/termination key of the ear-microphone is activated, respectively. A first voltage drop detector detects a first voltage drop at the corresponding connection path when the ear-microphone plug is connected through the interface connector, and outputs a first interrupt signal to the first interrupt terminal. A second voltage drop detector detects a second voltage drop at the corresponding connection path when the call connection/termination key is activated with the ear-microphone plug being connected, and outputs a second interrupt signal to the second interrupt terminal.Type: GrantFiled: June 11, 2003Date of Patent: March 4, 2008Assignee: Samsung Electronics Co., LtdInventor: Sung-Wook Chung
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Publication number: 20080017317Abstract: A substrate processing apparatus. The substrate processing apparatus includes a vacuum chamber having a reaction space to generate plasma in which a target substrate is located, a low frequency antenna unit located outside the reaction space to generate plasma in the reaction space, a low frequency power supply to apply low frequency power to the low frequency antenna unit, a high frequency antenna unit located outside the reaction space to generate plasma in the reaction space, and a high frequency power supply to apply high frequency power to the high frequency antenna unit. The apparatus allows the ignition of plasma to be performed efficiently via the high frequency antenna unit, and improves efficiency of inductive coupling between plasma and a low frequency antenna via the low frequency antenna unit, thereby improving plasma generation efficiency.Type: ApplicationFiled: April 16, 2007Publication date: January 24, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Sang Jean JEON, Chin Wook Chung, Guen Suk Lee, Seung Yuop Sa, Hyung Chul Cho