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).

  • Publication number: 20100096367
    Abstract: 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: Application
    Filed: August 25, 2009
    Publication date: April 22, 2010
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Hyeong-Tag JEON, Sang-Hyun Woo, Hyung-Chul Kim, Chin-Wook Chung
  • Patent number: 7696758
    Abstract: 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: Grant
    Filed: May 2, 2008
    Date of Patent: April 13, 2010
    Assignees: Korea Research Institute of Standards and Science
    Inventors: Chin-Wook Chung, Min-Hyung Lee, Sung-Ho Jang
  • Patent number: 7671288
    Abstract: 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: Grant
    Filed: February 24, 2009
    Date of Patent: March 2, 2010
    Assignee: Hyundai Motor Company
    Inventors: Tae Wook Chung, Seoung Hoon Lee
  • Publication number: 20100050045
    Abstract: 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: Application
    Filed: March 14, 2008
    Publication date: February 25, 2010
    Applicant: 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
  • Publication number: 20100041744
    Abstract: 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: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Applicant: 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
  • Publication number: 20100031110
    Abstract: 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: Application
    Filed: February 4, 2008
    Publication date: February 4, 2010
    Inventors: Ji Ae Seok, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, So Yeon Kim, Ji Wook Chung, Seung Hyun Kang, Wook Bong Lee
  • Publication number: 20100023844
    Abstract: 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: Application
    Filed: October 24, 2007
    Publication date: January 28, 2010
    Applicant: LG Electronics Inc.
    Inventors: Seung Hyun Kang, Min Seok Oh, Ki Hyoung Cho, Young Seob Lee, Ji Wook Chung
  • Publication number: 20100006409
    Abstract: 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: Application
    Filed: February 24, 2009
    Publication date: January 14, 2010
    Applicant: Hyundai Motor Company
    Inventors: Tae Wook CHUNG, Seoung Hoon Lee
  • Publication number: 20090325275
    Abstract: 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: Application
    Filed: February 15, 2007
    Publication date: December 31, 2009
    Inventors: Jeong-Yong Choi, Dong-Sam Suh, Chang-Kwon Ko, Seung-Ju Ryu, Hyang-Soon Chang, Jin-Wook Chung, Cheong-Ho Chang
  • Publication number: 20090313520
    Abstract: 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: Application
    Filed: June 15, 2007
    Publication date: December 17, 2009
    Applicant: LG ELECTRONICS INC.
    Inventors: Ji Wook Chung, Min Seok Oh, Ki Hyoung Cho, Ji Ae Seok, Young Seob Lee, So Yeon Kim
  • Publication number: 20090307562
    Abstract: 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: Application
    Filed: January 31, 2007
    Publication date: December 10, 2009
    Inventors: Young Seob Lee, Min Seok Oh, Ji Wook Chung, Ki Hyoung Cho
  • Publication number: 20090249157
    Abstract: 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: Application
    Filed: June 7, 2007
    Publication date: October 1, 2009
    Inventors: Young Seob Lee, Min Seok Oh, So Yeon Kim, Ji Wook Chung, Ki Hyoung Cho
  • Publication number: 20090155587
    Abstract: 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: Application
    Filed: August 22, 2008
    Publication date: June 18, 2009
    Applicant: NORTHWESTERN UNIVERSITY
    Inventors: Chad A. Mirkin, Lidong Qin, Sungho Park, Ling Huang, Sung-Wook Chung
  • Publication number: 20090126285
    Abstract: 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: Application
    Filed: March 16, 2006
    Publication date: May 21, 2009
    Inventors: 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
  • Publication number: 20090063926
    Abstract: 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: Application
    Filed: December 27, 2006
    Publication date: March 5, 2009
    Inventors: Ki Hyoung Cho, Min Seok Oh, Young Seob Lee, Ji Wook Chung
  • Publication number: 20080265903
    Abstract: 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: Application
    Filed: May 2, 2008
    Publication date: October 30, 2008
    Inventors: Chin-Wook Chung, Min-Hyung Lee, Sung-Ho Jang
  • Patent number: 7422696
    Abstract: 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: Grant
    Filed: June 30, 2005
    Date of Patent: September 9, 2008
    Assignee: Northwestern University
    Inventors: Chad A. Mirkin, Lidong Qin, Sungho Park, Ling Huang, Sung-Wook Chung
  • Publication number: 20080126916
    Abstract: 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: Application
    Filed: November 19, 2007
    Publication date: May 29, 2008
    Inventors: 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
  • Patent number: 7340284
    Abstract: 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: Grant
    Filed: June 11, 2003
    Date of Patent: March 4, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Sung-Wook Chung
  • Publication number: 20080017317
    Abstract: 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: Application
    Filed: April 16, 2007
    Publication date: January 24, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang Jean JEON, Chin Wook Chung, Guen Suk Lee, Seung Yuop Sa, Hyung Chul Cho