Patents by Inventor Kyu Han

Kyu Han 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).

  • Apparatus and method for interleaving channels in a mobile communication system
    Patent number: 7512843
    Abstract: An apparatus and method interleaving symbols coded by a turbo encoder in a communication system that uses the turbo encoder for encoding transmission information into coded systematic symbols and at least one parity symbol pair, and maps the coded symbols using a second or higher modulation order before transmission. An interleaver controller performs a control operation of cyclic-shifting the systematic symbols among the symbols coded by the turbo encoder depending on a size of a physical packet to be transmitted, the number of transmission slots, and the modulation order, using an equation of (K×c+k)mod R, and cyclic-shifting redundancy symbols constituting the remaining size of the coded symbols to be transmitted, using an equation of floor{(K×c+k)/D}mod R. An interleaver cyclic-shifts input symbols under the control of the interleaver controller.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: March 31, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hee Kim, Hwan-Joon Kwon, Youn-Sun Kim, Jin-Kyu Han
  • Transmission methods for downlink ACK/NACK channels
    Publication number: 20090059884
    Abstract: A method from transmitting data via multiple antennas. In this method, four information bits to be transmitted are multiplexed by using either one of a code division multiplexing scheme or a second code division multiplexing scheme combined with a real and imaginary multiplexing scheme, to generate a code division multiplexed symbol including four vectors. Then, the code division multiplexed symbol is repeatedly transmitted by alternatively applying two transmit diversity schemes via four transmission antennas.
    Type: Application
    Filed: July 22, 2008
    Publication date: March 5, 2009
    Inventors: Jianzhong Zhang, Zhouyue Pi, Farooq Khan, Eddy Kwon, Juho Lee, Jin-Kyu Han
  • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING THE HYBRID-ARQ ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20090055703
    Abstract: An apparatus and method for transmitting/receiving a Hybrid Automatic Repeat reQuest (HARQ) Acknowledge/Negative acknowledge (ACK/NACK) signal in a mobile communication system. The present invention distributes a CDM segment, to which an ACK/NACK signal is mapped, in the frequency domain of an OFDM symbol, and repeatedly transmits the CDM segment, thereby providing diversity gain in the time-frequency domain. Further, the present invention provides a mapping rule for distributing transmit power between OFDM symbols to which the ACK/NACK signal is mapped and transmitted, thereby preventing the case where a particular OFDM symbol is power-overloaded, and thus contributing to improvement of the entire system performance.
    Type: Application
    Filed: August 21, 2008
    Publication date: February 26, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Bum KIM, Jin-Kyu Han, Hwan-Joon Kwon, Ju-Ho Lee, Jianzhong Zhang
  • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING UPLINK CONTROL CHANNELS IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20090041139
    Abstract: A method and apparatus for transmitting/receiving pilot symbols for demodulation of control channel information in the uplink of a wireless communication system are provided. When an Evolved Node B (ENB) expects to receive both the Channel Quality Information (CQI) and the Acknowledgement (ACK)/Negative ACK (NACK) from a User Equipment (UE) in a certain subframe, if the UE transmits only the CQI channel, the ENB is prevented to detect the nonexistent ACK/NACK information from the CQI channel, thereby avoiding false alarm.
    Type: Application
    Filed: July 11, 2008
    Publication date: February 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Joon-Young Cho, Aris Papasakellariou, Hwan-Joon Kwon, Jin-Kyu Han, Yong-Jun Kwak, Youn-Hyoung Heo
  • SLEEPING POSTURE SUPPORTING APPARATUS
    Publication number: 20090038077
    Abstract: Provided is a sleeping posture supporting apparatus for supporting and maintaining a person's entire body lying at full length (lying on one side) and increasing breathing capacity while sleeping so as to prevent the person from snoring, thus allowing the person to have a good sleep.
    Type: Application
    Filed: June 2, 2008
    Publication date: February 12, 2009
    Applicants: EVEZARY CO., LTD.
    Inventors: Jin Kyu Han, Il Hee Hong
  • MOBILE AUTHENTICATION THROUGH STRENGTHENED MUTUAL AUTHENTICATION AND HANDOVER SECURITY
    Publication number: 20090029677
    Abstract: A method of mobile authentication with enhanced mutual authentication and handover security is disclosed. The method of mutual authentication in a mobile network in accordance with an embodiment of the present invention includes: generating at least one service ticket and session key corresponding to a mobile station in accordance with an authentication data request for the mobile station; encrypting the service ticket and the session key by using a user security key pre-assigned in accordance with the mobile station; sending the encrypted service ticket and session key to the mobile station by using a control message; and authenticating the mobile station by analyzing user mutual authentication information received from the mobile station. The present invention, therefore, can provide a more powerful and effective mutual authentication method in a mobile network.
    Type: Application
    Filed: February 29, 2008
    Publication date: January 29, 2009
    Applicant: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
    Inventors: Hyoung-Kee CHOI, Chan-Kyu Han
  • Adsorption fabric and method of fabricating the same
    Publication number: 20090022627
    Abstract: A color-changing adsorption fabric is provided to identify an adsorption state of a type of chemical, e.g., acid, alkali or organic matter, the color change being generated through a chemical reaction between chemical solution and pH-indicator material after wiping the chemical solution with the fabric. An adsorption fabric used in wiping the chemical solution may include a material, whose color changes when contacting an acid, alkali or organic matter, thereby identifying a type of chemical solution and thus preventing or reducing a fire occurrence. The color change of the adsorption fabric used in wiping a chemical solution may be identified with the naked eye so that separating and disposing the used-adsorption fabric corresponding to a type of chemical may be easier.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 22, 2009
    Inventors: Sang Il Na, Young-Kil Kim, Chang-Soo Kim, Hong-Jin Park, Jae-Woo Ryu, Hyung-Kyu Han
  • APPARATUS AND METHOD FOR TRANSMITTING CONTROL CHANNEL FOR FREQUENCY RESOURCE ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20090003274
    Abstract: A method is provided for transmitting a control channel for resource allocation to a terminal by a base station in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system. An additional resource allocation indicator is set indicating whether the number of consecutive resource block sets allocated to a terminal is greater than one. A reference control channel is generated including reference resource allocation information for a first consecutive resource block set and the set additional resource allocation indicator. An additional control channel using additional resource allocation information is generated, when there are one or more additional consecutive resource block sets. At least one of the generated reference control channel and the generated additional control channels is encoded before transmission.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Jun Kwak, Hwan-Joon Kwon, Ju-Ho Lee, Jin-Kyu Han
  • APPARATUS AND METHOD FOR MAPPING SYMBOLS TO RESOURCES IN A MOBILE COMMUNICATION SYSTEM
    Publication number: 20090003486
    Abstract: A method and apparatus for mapping coded data symbols to resources in a mobile communication system. An S/P converter converts a serial signal including user data or control information into a plurality of parallel signals. A DFT unit performs Discrete Fourier Transform (DFT) on the parallel signals output from the S/P converter. A controller controls the DFT unit so that among the signals output from the S/P converter, a control channel is mapped in the maximum available resources to which the control channel can be mapped, among the resources included in a resource block, and data symbols are mapped to the remaining resources, except for the maximum available resources to which the control channel can be mapped. A subcarrier mapper allocates the signals output from the DFT unit to subcarriers. An RF processor converts a signal output from the subcarrier mapper into a radio signal.
    Type: Application
    Filed: May 29, 2008
    Publication date: January 1, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwan-Joon KWON, Youn-Hyoung Huh, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han
  • APPARATUS AND METHOD FOR CHANNEL-INTERLEAVING AND CHANNEL-DEINTERLEAVING DATA IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20080317146
    Abstract: An interleaving and deinterleaving apparatus and method in a wireless communication system are provided, in which it is determined whether coded bits to be transmitted in one modulation symbol are selected from a plurality of code blocks. The coded bits are interleaved on a modulation symbol basis if the coded bits to be transmitted in the modulation symbol are selected from a plurality of code blocks.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwan-Joon KWON, Jae-Chon Yu, Jin-Kyu Han
  • Fuse circuit with leakage path elimination
    Patent number: 7459957
    Abstract: A fuse circuit may include a fuse cut detection unit to output state information indicating whether or not a fuse is cut during a fuse cut detection time period, a maintenance and output unit to maintain the state information and output a fuse state information signal, and a connection/disconnection unit to connect the fuse cut detection unit to the maintenance and output unit during the fuse cut detection time period and disconnect the fuse cut detection unit from the maintenance and output unit after the fuse cut detection time period. A fuse circuit may recognize an indefinite voltage at a detection node caused by a leakage path through a fuse as a predetermined fuse state.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: December 2, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Soo Kim, Kyu-Han Han
  • METHOD AND APPARATUS FOR ALLOCATING ACKCH RESOURCES IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20080293424
    Abstract: A method for allocating physical resources to an Acknowledgement (ACK)/Negative Acknowledgement (NACK) signal channel representative of a response signal in a wireless communication system. The method includes grouping ACK/NACK signal channels corresponding to a plurality of resource blocks used for transmission of a data channel or a control channel into a plurality of groups so ACK/NACK signal channels having consecutive indexes do not belong to the same group; and allocating same frequency resources to ACK/NACK signal channels belonging to the same ACK/NACK signal channel group and allocating orthogonal sequences so ACK/NACK signal channels in each ACK/NACK signal channel group are distinguished in a code domain.
    Type: Application
    Filed: April 28, 2008
    Publication date: November 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon-Young CHO, Ju-Ho Lee, Hwan-Joon Kwon, Jin-Kyu Han
  • Organic electronic device
    Publication number: 20080272369
    Abstract: An organic electronic device. The device includes a first electrode to inject or extract hole, the first electrode including a conductive layer and an n-type organic compound layer disposed on the conductive layer, a second electrode to inject or extract electron, a p-type organic compound layer disposed between the n-type organic compound layer and the second electrode. The p-type organic compound layer forms an NP junction between the n-type organic compound layer and the p-type organic compound layer. The energy difference between a lowest unoccupied molecular orbital (LUMO) energy of the n-type organic compound layer and a Fermi energy of the conductive layer is about 2 eV or less, and the energy difference between the LUMO energy of the n-type organic compound layer and a highest unoccupied molecular orbital (HOMO) energy of the p-type organic compound layer is about 1 eV or less.
    Type: Application
    Filed: April 28, 2008
    Publication date: November 6, 2008
    Inventors: Minsoo Kang, Sae Hwan Son, Hyeon Choi, Jun Gi Jang, Sang Young Jeon, Yeon Hwan Kim, Seokhee Yoon, Young Kyu Han
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL CHANNELS BY RESTRICTING A SET OF THE CONTROL CHANNELS IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20080273479
    Abstract: A method and apparatus for transmitting a control channel in a base station for a wireless communication system. The base station transmits information including a number of channel elements constituting control channels, to a terminal; establishes a set of control channels that the terminal can receive, within the number of channel elements using an identifier (ID) of the terminal; and transmits control information to the terminal through a selected control channel among the control channels. The terminal is restricted to monitor only a proper number of control channels established without the need to monitor all control channels, thereby reducing reception complexity and avoiding unnecessary battery consumption.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 6, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Jun Kwak, Hwan-Joon Kwon, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han, Youn-Hyoung Heo, Ping Wang
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN AN ORTHOGONAL FREQUENCY MULTIPLEXING SYSTEM
    Publication number: 20080273491
    Abstract: A method and apparatus for transmitting and receiving data in an Orthogonal Frequency Division Multiplexing (OFDM) system are provided, in which a Base Station (BS) generates a signal of a broadcast channel, determines whether the broadcast channel signal includes Reference Symbols (RSs) used for channel estimation, determines to apply a maximal puncturing pattern to a Resource Block that defines the broadcast channel, if the broadcast channel signal includes Rs, includes puncturing information about a downlink signal in the broadcast channel signal, maps the broadcast channel signal including the puncturing information to Resource Elements according to the maximal puncturing pattern, and transmits the mapped broadcast channel signal.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 6, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Kyu HAN, Joon-Young Cho, Hwan-Joon Kwon, Ju-Ho Lee
  • METHOD AND APPARATUS FOR MAPPING/DEMAPPING MODULATION SYMBOLS IN A MOBILE COMMUNICATION SYSTEM
    Publication number: 20080267122
    Abstract: A method for mapping wireless resources of reference symbols for channel state estimation and modulation symbols for user information transmission in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) mobile communication system is disclosed. The mapping method includes channel-encoding and modulating a user information stream to be transmitted, and then generating a systematic symbol stream and a parity symbol stream; and preferentially arranging systematic modulation symbols in resource elements of a symbol including no reference symbol, and then arranging parity modulation symbols in remaining resource elements.
    Type: Application
    Filed: April 14, 2008
    Publication date: October 30, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-Kyu Han, Ju-Ho Lee, Joon-Young Cho, Hwan-Joon Kwon
  • PRECODING APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM USING MULTIPLE INPUT MULTIPLE OUTPUT
    Publication number: 20080240274
    Abstract: A transmission apparatus in a Multiple Input Multiple Output (MIMO)-based wireless communication system. The transmission apparatus includes at least two antenna groups each having at least two antennas, wherein the antenna groups are spaced apart by a first distance and transmit antennas in each antenna group are spaced apart by a second distance which is shorter than the first distance. A channel coding and modulation unit channel-codes and modulates a desired transmission data stream. A precoding unit precodes the channel-coded and modulated signal separately for each antenna group and each antenna in the same antenna group. Thereafter, a transmission processing unit transmission-processes the output signal from the precoding unit.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Kyu Han, Clerckx Bruno, Ju-Ho Lee
  • METHOD AND APPARATUS FOR RECEIVING A CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM
    Publication number: 20080232322
    Abstract: A method and apparatus for receiving control information in a mobile communication system. A controller acquires information indicating variable Control Channel Elements (CCEs) allocated for first User Equipments (UEs) among CCEs constituting control channels, acquires information indicating fixed CCEs allocated for second UEs, selects the variable CCEs when a UE receiving the control information is included in the first UEs, and selects the fixed CCEs when the UE is included in the second UEs. A control information receiver receives the control information through the selected CCEs.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 25, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn-Hyoung Heo, Joon-Young Cho, Yujian Zhang, Ju-Ho Lee, Jin-Kyu Han
  • 5,6-Dimethylthieno[2,3-Di] Pyrimidine Derivatives, the Preparation Method Thereof and the Pharmaceutical Composition Comprising the Same for Anti-Virus
    Publication number: 20080234482
    Abstract: Disclosed herein are 5,?-dimethylthieno[2,3-d]pyrimidine derivatives useful as antiviral agents. More particularly, disclosed are 5,?-dimethylthieno[2,3-djpyrimidine derivatives represented by Formula 1, having an excellent inhibitory effect on the proliferation of hepatitis C virus (HCV), pharmaceutically acceptable salts thereof, a preparation method thereof, and a pharmaceutical composition for the prevention and treatment of hepatitis C virus (HCV), containing, as active ingredients, these compounds. The 5,6-dimethylthieno[2,3-d]pyrimidine derivatives represented by Formula 1 have an excellent effect of inhibiting the proliferation of hepatitis C virus and also have low toxicity. Thus, these compounds are available as agents for the prevention and treatment of hepatitis C.
    Type: Application
    Filed: September 23, 2005
    Publication date: September 25, 2008
    Applicant: EQUISPHARM CO., LTD
    Inventors: Cheol Kyu Han, Jeonghyeok Yoon, Nam-Doo Kim, Jin-ah Kim
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM
    Publication number: 20080225786
    Abstract: A method and apparatus for transmitting a control channel of a base station in a mobile communication system. A downlink control channel signal generator generates a downlink control channel signal to be transmitted to a User Equipment (UE). A control channel candidate processor calculates a control channel decoding attempt order according to a state of the downlink channel. A controller determines a control channel candidate to be used, according to the calculated decoding attempt order. A mapper maps the generated control channel signal to the determined control channel candidate. A transmission processor wirelessly transmits the mapped signal.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 18, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Kyu HAN, Youn-Hyoung Heo, Joon-Young Cho, Hwan-Joon Kwon, Ju-Ho Lee