Patents by Inventor Dong-Uk Lee

Dong-Uk Lee 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).

  • Data output circuit
    Patent number: 8212694
    Abstract: A data output circuit is presented. The data output circuit includes: a data serializer and a driver. The data serializer is configured to generate serial data using first parallel data. The driver is configured to drive the serial data to generate output data. The data serializer is also configured to generate the serial data by multiplexing second parallel data generated by changing a power domain of the first parallel data.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: July 3, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Dong Uk Lee
  • Data driver
    Patent number: 8199591
    Abstract: A data driver is presented in which the data driver includes a termination/pull-up driver and a pull-down driver. The termination/pull-up driver is configured to perform a termination operation and a pull-up operation at the same time for a data output terminal during an active interval of a semiconductor memory. The pull-down driver is configured to be activated when the semiconductor memory performs a read operation, and configured to pull down the output terminal in response to a level of an input data.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 12, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Uk Lee, Ji Yeon Yang
  • DATA OUTPUT CIRCUIT
    Publication number: 20120119806
    Abstract: A data output circuit includes an output control signal generation unit configured to generate output control signals in response to an output enable bar signal and a delay locked clock signal and a register configured to output stored data in response to the output control signals.
    Type: Application
    Filed: August 25, 2011
    Publication date: May 17, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Dong Uk LEE
  • Carbon monoxide remover and fuel cell system with the same
    Patent number: 8178248
    Abstract: A carbon monoxide remover includes a reactor body having an inner space, and a catalyst provided in the inner space of the reactor body to react with the reforming gas. A diffusion unit is installed at an inlet portion of the reactor body for introducing the reforming gas to diffuse the reforming gas over the entire area of the catalyst.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: May 15, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Hyuk Son, Dong-Myung Suh, Dong-Uk Lee
  • Semiconductor integrated circuit
    Patent number: 8169258
    Abstract: A semiconductor integrated circuit includes a reference voltage generating block, a circuit block, and a transmission line. The reference voltage generating block generates a first reference voltage and generates and outputs a digital code corresponding to the level of the first reference voltage. The circuit block converts the digital code into a second reference voltage and uses the second reference voltage for operation related to the function of the semiconductor integrated circuit. The transmission line is connected between the reference voltage generating block and the circuit block to allow transmission of the digital code to the circuit block.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: May 1, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Dong Uk Lee
  • METHOD AND APPARATUS FOR DATA TRANSMISSION BASED ON DISTRIBUTED DISCRETE POWER CONTROL IN COOPERATIVE MULTI-USER MULTI-INPUT MULTI-OUTPUT SYSTEM
    Publication number: 20120093250
    Abstract: Disclosed are a method and apparatus capable of enhancing a closed loop multi-input multi-output (MIMO) capacity through distributed discrete power control in the case of cooperatively transmitting information to multiple users through a downlink.
    Type: Application
    Filed: November 17, 2009
    Publication date: April 19, 2012
    Applicants: INDUSTRY UNIVERSITY COOPERATION FOUNDATION, SOGANG UNIVERSITY, LG ELECTRONICS INC.
    Inventors: Byoung-Hoon Kim, Wonjin Sung, Jaewon Chang, Jun-Ho Jo, Dong-Uk Lee, Jaewon Kim, Ki Jun Kim
  • METHOD FOR RECEIVING DATA IN MULTI INPUT MULTI OUTPUT
    Publication number: 20120087400
    Abstract: Disclosed is a method for receiving data in a Multi Input Multi Output (MIMO) system, the method comprising: decoding data transmitted from a transmitter by using one beam-forming vector included in a codebook that beam-forming vectors are formed in a hierarchical structure according to at least one of change directions of radio channels, the number of channel change directions, and a change rate; determining whether to update the beam-forming vector based on the radio channel changes; selecting other beam-forming vector included in the codebook having a hierarchical structure when it is determined that update for the beam-forming vector is required; feed-backing information about an index indicating where the selected beam-forming vector is located in the hierarchical structure of the codebook to the transmitter; and decoding data received from the transmitter by using the selected beam-forming vector.
    Type: Application
    Filed: November 6, 2009
    Publication date: April 12, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Jaewon Kim, Jaewon Chang, Dong-Uk Lee, Wonjin Sung, Byoung-Hoon Kim, Jun-Ho Jo
  • PACKAGE SUBSTRATE
    Publication number: 20120087098
    Abstract: Disclosed herein is a package substrate, including: a printed circuit board having a connection terminal and a conductive adhesive layer formed thereon; components mounted in the connection terminal; wires coupled to the components; a wall printed circuit board coupled to the conductive adhesive layer and configured to cover the components; and a metal cap coupled to an upper end of the wall printed circuit board to cover the components, thereby ensuring firmness and reliability despite external impact.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 12, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Uk LEE, Seung Hyun NOH
  • OUTPUT DRIVER
    Publication number: 20120062280
    Abstract: An output driver includes a control signal generation unit configured to generate a control signal in response to a driving strength signal and a power supply voltage level, and a driving signal generation unit configured to buffer a pre-driving signal and generate a driving signal for driving an output data, wherein a driving strength of the driving signal is adjusted in response to the control signal.
    Type: Application
    Filed: February 24, 2011
    Publication date: March 15, 2012
    Applicant: Hynix Semiconductor Inc.
    Inventors: Ji Yeon YANG, Dong Uk LEE
  • PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20110297423
    Abstract: Disclosed is a printed circuit board, including a base substrate, a first bump including a first metal layer formed on the base substrate and a second metal layer formed on the first metal layer, and a second bump including a third metal layer formed on the base substrate, in which the first bump has a height greater than that of the second bump. Because the heights of the first bump and the second bump are different, even when the printed circuit board warps, an electrical connection between the printed circuit board and an external substrate does not become broken. A method of manufacturing the printed circuit board is also provided.
    Type: Application
    Filed: June 7, 2011
    Publication date: December 8, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seung Hyun NOH, Dong Uk LEE, Chin Kwan KIM
  • Apparatus and method for calibrating on-die termination in semiconductor memory device
    Patent number: 8067956
    Abstract: An on-die termination circuit in a semiconductor memory apparatus can comprise a comparing block for comparing a reference voltage with a code voltage corresponding to a code and outputting a comparison signal, a counting block for changing the code based on the comparison signal, and controlling block for controlling the counting block based on a match result of previous and current values of the comparison signal.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: November 29, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Dong Uk Lee
  • Character input method for adding visual effect to character when character is input and mobile station therefor
    Patent number: 8049755
    Abstract: Disclosed is a apparatus and a method for displaying various character effects on a character input screen of a mobile station using a differentiated graphic element according to a key input signal. In the method a visual character theme set by a user is displayed in a character input mode, and a character input effect corresponding to the visual character theme is shown according to a key input signal. Accordingly, since the mobile station can show a visual character input effect in every key input sequence by allowing the user to select a desired visual character theme in advance, an entertaining effect is added to a user interface of the mobile station.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Young Kang, Dong-Uk Lee, Myoung-Hwan Han, Jin-Gyu Seo, Nho-Kyung Hong, Chang-Hoon Lee
  • INPUT BUFFER
    Publication number: 20110241736
    Abstract: An input buffer includes a first amplification block, a second amplification block, and a buffer block. The first amplification block is configured to be driven by an external voltage, to differentially amplify an input signal and a reference voltage in response to a bias voltage, and to subsequently generate first and second differential signals. The second amplification block is configured to be driven by an internal voltage, to differentially amplify the first and second differential signals, and to generate an output signal. The buffer block is configured to be driven by the internal voltage, to buffer the output signal, and to output an inverted output signal.
    Type: Application
    Filed: February 18, 2011
    Publication date: October 6, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Dong Uk LEE
  • SEMICONDUCTOR DEVICE AND SYSTEM
    Publication number: 20110242909
    Abstract: A system includes a data transmitting device and a data receiving device. The data transmitting device includes a data strobe signal generation unit configured to generate first and second data strobe signals in response to an output enable signal, and a data output unit configured to transmit data in synchronization with the first data strobe signal. The data receiving device is configured to receive the data in synchronization with the second data strobe signal.
    Type: Application
    Filed: February 25, 2011
    Publication date: October 6, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Dong Uk LEE
  • Carbon monoxide remover and reformer for fuel cell
    Patent number: 8016900
    Abstract: Disclosed are a carbon monoxide remover and a fuel cell reformer including the same. In the reformer, a reformed gas produced from a reforming reaction unit when the reformer is initially driven is used as a fuel for a heat source unit supplying heat to a water gas shift reaction unit. The carbon monoxide remover is connected to the reforming reaction unit that changes fuel into reformed gas with hydrogen. The carbon monoxide remover lowers carbon monoxide contained in the reformed gas. The carbon monoxide remover includes a heat source unit employing the reformed gas as a fuel; and a water gas shift reaction unit provided with a shift catalyst using heat from the heat source unit. The shift catalyst lowers the concentration of carbon monoxide in the reformed gas through reaction between water and carbon monoxide.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: September 13, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung Chul Lee, Ju Yong Kim, Yong Kul Lee, Man Seok Han, Chan Ho Lee, Jin Kwang Kim, Jin Goo Ahn, Dong Uk Lee, Leonid Gorobinskiy
  • Fuel reformer
    Patent number: 8017088
    Abstract: A fuel reformer including a first pipe, a second pipe which is disposed in the first pipe, a main heat source, which includes an oxidation catalyst, filling the second pipe adapted to generate thermal energy with a predetermined temperature range through an oxidation reaction of a fuel using the oxidation catalyst; an auxiliary heat source which includes a torch connected to the second pipe to ignite and burn the gaseous fuel, thereby preheating the oxidation catalyst to within a reaction starting temperature range, and a reforming reaction unit which includes a reforming catalyst filling a space between the first and second pipes to generate a reforming gas containing hydrogen through the reforming reaction of the fuel using the reforming catalyst by using the thermal energy generated by the main heat source.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: September 13, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung-Chul Lee, Ju-Yong Kim, Chan-Ho Lee, Dong-Myung Suh, Jin-Kwang Kim, Jin-Goo Ahn, Man-Seok Han, Yong-Kul Lee, Dong-Uk Lee, Leonid Gorobinskiy
  • Fuel reforming apparatus and fuel cell system with the same
    Patent number: 8012635
    Abstract: A fuel reforming apparatus which generates a reformed gas containing hydrogen by reforming a fuel and supplies the reformed gas to a fuel cell body is provided. The fuel reforming apparatus is constructed with a burner which generates a flame by burning the fuel together with the atmospheric air, a reforming reactor which receives thermal energy of the flame and generates the reformed gas through a reforming reaction between the fuel and steam, an evaporator in which a pipeline for allowing the fuel and water to flow is disposed in the direction of the flame sprayed from the burner, with the water being evaporated by using the flame and the fuel and steam being supplied to the reforming reactor, and a spraying unit which is disposed in a direction of the sprayed flame to spray additional air into the evaporator.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: September 6, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ju-Yong Kim, Chan-Ho Lee, Sung-Chul Lee, Dong-Myung Suh, Jin-Kwang Kim, Jin-Goo Ahn, Dong-Uk Lee
  • DELAY LOCKED LOOP SEMICONDUCTOR APPARATUS THAT MODELS A DELAY OF AN INTERNAL CLOCK PATH
    Publication number: 20110204941
    Abstract: A delay locked loop semiconductor apparatus that models a delay of an internal clock path is presented. The semiconductor apparatus includes: a DLL and a detection code output block. The DLL includes a delay model unit in which a delay value of an internal clock path is modeled and is configured to output a DLL clock signal of which the phase is controlled by reflecting the delay value of the internal clock path into an applied input clock signal. The detection code output block is configured to output a phase difference detection code having a code value corresponding to a phase difference between a first phase correction clock signal generated by reflecting a model delay value of the delay model unit into the DLL clock signal and a second phase correction clock signal generated by reflecting an actual delay value of the internal clock path into the DLL clock signal.
    Type: Application
    Filed: July 9, 2010
    Publication date: August 25, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Dong Uk Lee
  • DATA OUTPUT CIRCUIT
    Publication number: 20110156938
    Abstract: A data output circuit is presented. The data output circuit includes: a data serializer and a driver. The data serializer is configured to generate serial data using first parallel data. The driver is configured to drive the serial data to generate output data. The data serializer is also configured to generate the serial data by multiplexing second parallel data generated by changing a power domain of the first parallel data.
    Type: Application
    Filed: July 9, 2010
    Publication date: June 30, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Dong Uk LEE
  • Fuel cell system which cools condenser and mixes air without requiring separate power units
    Patent number: 7951499
    Abstract: A fuel cell system comprises: a fuel container for storing fuel liquefied with pressure; a reformer for generating hydrogen from the fuel through a catalyst reaction based on heat energy; an electric generator for generating electricity by transforming energy of an electrochemical reaction between hydrogen and oxygen into electric energy; a condenser for condensing water produced in the electric generator; and a heat exchanger passing through the condenser for cooling the condenser by latent heat of the fuel. With this configuration, cooling water cooled by latent heat of a fuel container is employed to cool the condenser without using a separate cooler. Furthermore, air is mixed with butane fuel without using a separate power unit, so that it is possible to achieve a more compact and highly efficient fuel cell.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: May 31, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ju Yong Kim, Sung Chul Lee, Chan Ho Lee, Dong Myung Suh, Jin Goo Ahn, Jin Kwang Kim, Dong Uk Lee