Patents by Inventor Won Sub SONG

Won Sub SONG 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: 9467145
    Abstract: A data output circuit includes a main driver including a pull-up driver, coupled between a power supply terminal and a node coupled to the pad and a pull-down driver coupled between the node and a ground terminal, an impedance controller configured to control an output impedance at the node by sensing a voltage at the node and to generate pull-up control signals and pull-down control signals based on the sensed voltage, and a pre-driver configured to control driving strengths of the pull-up driver and the pull-down driver in response to the pull-up control signals, the pull-down control signals, and data.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: October 11, 2016
    Assignee: Hynix Semiconductor Inc.
    Inventors: Won Sub Song, Jong Tai Park
  • Data input circuit of nonvolatile memory device
    Patent number: 8780645
    Abstract: The data input circuit of a nonvolatile memory device includes a redundancy multiplexer configured to selectively output normal data and redundancy data to an internal global data line in response to a redundancy signal, a plurality of pipe registers coupled to the internal global data line and configured to latch normal data or redundancy data received through the internal global data line in response to a plurality of respective latch signals, and an output multiplexer configured to sequentially output the latched data in response to a plurality of selection signals.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: July 15, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jong Tai Park, Won Sub Song
  • DATA OUTPUT CIRCUIT
    Publication number: 20120056642
    Abstract: A data output circuit includes a main driver including a pull-up driver, coupled between a power supply terminal and a node coupled to the pad and a pull-down driver coupled between the node and a ground terminal, an impedance controller configured to control an output impedance at the node by sensing a voltage at the node and to generate pull-up control signals and pull-down control signals based on the sensed voltage, and a pre-driver configured to control driving strengths of the pull-up driver and the pull-down driver in response to the pull-up control signals, the pull-down control signals, and data.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 8, 2012
    Inventors: Won Sub SONG, Jong Tai Park
  • DATA INPUT CIRCUIT OF NONVOLATILE MEMORY DEVICE
    Publication number: 20120057414
    Abstract: The data input circuit of a nonvolatile memory device includes a redundancy multiplexer configured to selectively output normal data and redundancy data to an internal global data line in response to a redundancy signal, a plurality of pipe registers coupled to the internal global data line and configured to latch normal data or redundancy data received through the internal global data line in response to a plurality of respective latch signals, and an output multiplexer configured to sequentially output the latched data in response to a plurality of selection signals.
    Type: Application
    Filed: September 7, 2011
    Publication date: March 8, 2012
    Inventors: Jong Tai Park, Won Sub Song