Patents by Inventor Keun Soo Song

Keun Soo 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).

  • Patent number: 8917113
    Abstract: A phase detection device includes a clock divider configured to divide a clock signal and generate a plurality of divided clock signals, a recoverer configured to generate a recovered clock signal having substantially the same frequency as the clock signal based on the plurality of divided clock signals, and a phase detector configured to detect a phase of the recovered clock signal in response to a data strobe signal.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: December 23, 2014
    Assignee: SK Hynix Inc.
    Inventor: Keun Soo Song
  • Publication number: 20140369453
    Abstract: The receiver includes a first buffer configured to buffer a data to generate a first internal data, a first delay unit configured to retard the first internal clock signal by a first delay period to generate a first delayed internal clock signal, and a second buffer configured to buffer the first internal data to generate a first input data.
    Type: Application
    Filed: November 19, 2013
    Publication date: December 18, 2014
    Applicant: SK hynix Inc.
    Inventor: Keun Soo SONG
  • Publication number: 20140340247
    Abstract: Deserializers are provided. The deserializer includes a data aligner, a selection signal generator and a selection output unit. The data aligner is configured to align data in response to internal clock signals having different phases from each other to generate higher aligned data and lower aligned data. The selection signal generator is configured to detect a phase of one of the internal clock signals in response to a phase detection signal to generate a selection signal. The phase detection signal includes a pulse generated according to a write command signal and a write latency signal. The selection output unit is configured to output the higher aligned data or the lower aligned data as selected alignment data in response to the selection signal.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Inventor: Keun Soo SONG
  • Publication number: 20140344611
    Abstract: Deserializers are provided. The deserializer includes a data aligner, a selection signal generator and a selection output unit. The data aligner is configured to align data in response to internal clock signals having different phases from each other to generate higher aligned data and lower aligned data. The selection signal generator is configured to detect a phase of one of the internal clock signals in response to a phase detection signal to generate a selection signal. The phase detection signal includes a pulse generated according to a write command signal and a write latency signal. The selection output unit is configured to output the higher aligned data or the lower aligned data as selected alignment data in response to the selection signal.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Inventor: Keun Soo SONG
  • Publication number: 20140328130
    Abstract: An integrated circuit includes first and second bump pads spaced from each other with a first space, configured to receive differential signals for a normal operation, and at least one redundant bump pad spaced from the first bump pad with a second space smaller than the first space, configured to receive a signal for a repair to the differential signals.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 6, 2014
    Inventors: Dong-Uk LEE, Young-Ju KIM, Keun-Soo SONG
  • Publication number: 20140298147
    Abstract: Data transferring systems are provided. The data transferring system includes a transmitter and a receiver. The transmitter transmit a reference code signal including a reference value of data, a transmission data signal generated by synthesizing data being transmitted and the reference code signal, and an external data masking signal. The receiver receives the transmission data signal to extract an internal code signal and generates an internal data masking signal in response to the internal code signal and the reference code signal. Further, the receiver generates an internal data signal from the transmission data signal in response to the external data masking signal and the internal data masking signal. Related methods are also provided.
    Type: Application
    Filed: August 13, 2013
    Publication date: October 2, 2014
    Applicant: SK hynix Inc.
    Inventor: Keun Soo SONG
  • Patent number: 8823426
    Abstract: Deserializers are provided. The deserializer includes a data aligner, a selection signal generator and a selection output unit. The data aligner is configured to align data in response to internal clock signals having different phases from each other to generate higher aligned data and lower aligned data. The selection signal generator is configured to detect a phase of one of the internal clock signals in response to a phase detection signal to generate a selection signal. The phase detection signal includes a pulse generated according to a write command signal and a write latency signal. The selection output unit is configured to output the higher aligned data or the lower aligned data as selected alignment data in response to the selection signal.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: September 2, 2014
    Assignee: SK Hynix Inc.
    Inventor: Keun Soo Song
  • Publication number: 20140244947
    Abstract: A memory system includes a memory including a condition detection circuit configured to detect a memory condition, and a condition output circuit configured to output the memory condition detected by the condition detection circuit. A memory controller is configured to adjust operational performance of the memory in response to the memory condition.
    Type: Application
    Filed: June 27, 2013
    Publication date: August 28, 2014
    Inventor: Keun-Soo SONG
  • Publication number: 20140167293
    Abstract: An integrated circuit includes first and second bump pads spaced from each other with a first space, configured to receive differential signals for a normal operation, and at least one redundant bump pad spaced from the first bump pad with a second space smaller than the first space, configured to receive a signal for a repair to the differential signals.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 19, 2014
    Applicant: SK HYNIX INC.
    Inventors: Dong-Uk LEE, Young-Ju KIM, Keun-Soo SONG
  • Patent number: 8730746
    Abstract: A semiconductor integrated circuit includes a first pad allocated to receive a row address, a second pad allocated to discriminate a first input/output mode and a second input/output mode, a detector configured to generate a detection signal in response to logic levels of the first and second pads, and a column address controller configured to deassert a column address to a logic low level in response to a deasserted detection signal. The semiconductor integrated circuit may selectively support one of first and second memory capacities and one of the first and second input/output modes using the logic levels of the first and second pads.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: May 20, 2014
    Assignee: SK Hynix Inc.
    Inventors: Keun Soo Song, Nak Kyu Park
  • Publication number: 20140111256
    Abstract: Deserializers are provided. The deserializer includes a data aligner, a selection signal generator and a selection output unit. The data aligner is configured to align data in response to internal clock signals having different phases from each other to generate higher aligned data and lower aligned data. The selection signal generator is configured to detect a phase of one of the internal clock signals in response to a phase detection signal to generate a selection signal. The phase detection signal includes a pulse generated according to a write command signal and a write latency signal. The selection output unit is configured to output the higher aligned data or the lower aligned data as selected alignment data in response to the selection signal.
    Type: Application
    Filed: March 18, 2013
    Publication date: April 24, 2014
    Applicant: SK HYNIX INC.
    Inventor: Keun Soo SONG
  • Publication number: 20140003168
    Abstract: A semiconductor integrated circuit including first semiconductor chip and second semiconductor chip that are vertically stacked, wherein the first semiconductor chip includes a first column data driving circuit configured to transmit internal data to the second semiconductor chip in a DDR (double data rate) scheme based on an internal strobe signal, and a first column strobe signal driving circuit configured to generate first column strobe signals that are source-synchronized with first column data transmitted to the second semiconductor chip by the first column data driving circuit, based on the internal strobe signal, and transmit the first column strobe signals to the second semiconductor chip.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 2, 2014
    Applicant: SK HYNIX INC.
    Inventors: Dong-Uk LEE, Young-Ju KIM, Keun-Soo SONG
  • Patent number: 8599630
    Abstract: A semiconductor integrated circuit includes a column redundancy fuse block having a fuse set array having a plurality of fuse sets including a plurality of column address fuses, and a fuse blowing information block configured to output a fuse blowing determination signal of a corresponding column based on a cutting state of the column address fuses, wherein the column redundancy fuse is disposed in the edge area, wherein the fuse blowing determination signal is inputted to a column control block through upper portion of a memory cell array of a corresponding bank.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: December 3, 2013
    Assignee: SK hynix Inc.
    Inventors: Keun Soo Song, Nak Kyu Park
  • Publication number: 20120195140
    Abstract: A semiconductor integrated circuit includes a first pad allocated to receive a row address, a second pad allocated to discriminate a first input/output mode and a second input/output mode, a detector configured to generate a detection signal in response to logic levels of the first and second pads, and a column address controller configured to deassert a column address to a logic low level in response to a deasserted detection signal. The semiconductor integrated circuit may selectively support one of first and second memory capacities and one of the first and second input/output modes using the logic levels of the first and second pads.
    Type: Application
    Filed: December 30, 2011
    Publication date: August 2, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Keun Soo SONG, Nak Kyu PARK
  • Patent number: 8213250
    Abstract: A semiconductor memory device includes a cell array including a plurality of unit cells, a first amplification circuit amplifying an input signal received from at least one unit cell among the unit cells, a signal transmission unit to transmit the signal to the first amplification circuit in response to a selection signal, first amplification control circuit to output a first amplification control signal controlling an amplification operation of the first amplification circuit, a second amplification circuit to amplify an output signal of the first amplification circuit, a second amplification control circuit to output a second amplification control signal controlling an amplification operation of the second amplification circuit, and a voltage adjustment circuit to adjust an internal voltage of the first amplification circuit in response to a voltage adjustment signal before the first and second amplification circuits perform the amplification operation.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: July 3, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Keun Soo Song
  • Patent number: 8077531
    Abstract: A semiconductor integrated circuit includes a semiconductor chip having an edge area and a bank area located an inner portion of the edge area, and a column redundancy fuse block disposed in the edge area.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: December 13, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Keun-Soo Song, Nak-Kyu Park
  • Publication number: 20110291762
    Abstract: A semiconductor memory device includes a cell array including a plurality of unit cells, a first amplification circuit amplifying an input signal received from at least one unit cell among the unit cells, a signal transmission unit to transmit the signal to the first amplification circuit in response to a selection signal, first amplification control circuit to output a first amplification control signal controlling an amplification operation of the first amplification circuit, a second amplification circuit to amplify an output signal of the first amplification circuit, a second amplification control circuit to output a second amplification control signal controlling an amplification operation of the second amplification circuit, and a voltage adjustment circuit to adjust an internal voltage of the first amplification circuit in response to a voltage adjustment signal before the first and second amplification circuits perform the amplification operation.
    Type: Application
    Filed: July 12, 2010
    Publication date: December 1, 2011
    Applicant: Hynix Semiconductor Inc.
    Inventor: Keun Soo SONG
  • Publication number: 20110267910
    Abstract: A semiconductor integrated circuit includes a column redundancy fuse block having a fuse set array having a plurality of fuse sets including a plurality of column address fuses, and a fuse blowing information block configured to output a fuse blowing determination signal of a corresponding column based on a cutting state of the column address fuses, wherein the column redundancy fuse is disposed in the edge area, wherein the fuse blowing determination signal is inputted to a column control block through upper portion of a memory cell array of a corresponding bank.
    Type: Application
    Filed: July 8, 2011
    Publication date: November 3, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Keun Soo Song, Nak Kyu Park
  • Patent number: 7924647
    Abstract: A fuse circuit includes a fuse unit configured to form a current path on a first node according to whether or not a fuse is cut; a driving current controller configured to control a potential level of the first node in response to a test signal; and an output unit configured to output a fuse state signal in response to the potential level of the first node.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 12, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Keun-Soo Song, Kwan-Weon Kim
  • Publication number: 20110058441
    Abstract: A data line driving circuit includes: an operation period signal generation unit configured to generate an operation period signal for determining a write period and a read period in response to a read command or a write command; and a read data line driving unit configured to fix a read data line to a first voltage level in response to the operation period signal, the read data line being dedicated to a read operation.
    Type: Application
    Filed: July 29, 2010
    Publication date: March 10, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Keun Soo SONG