Patents by Inventor Kwan Su SHON

Kwan Su SHON 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: 11908543
    Abstract: The present technology may include a first detection unit configured to generate an output signal by detecting a level of an input terminal in response to a transition of a control clock signal during a normal read operation, and a second detection unit configured to generate the output signal by detecting the level of the input terminal regardless of the transition of the control clock signal during a state information read operation.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: February 20, 2024
    Assignee: SK hynix Inc.
    Inventors: Eun Ji Choi, Keun Seon Ahn, Kwan Su Shon, Yo Han Jeong
  • Publication number: 20240007085
    Abstract: A duty cycle correction circuit includes a duty correction circuit, an information generation circuit and a duty control circuit. The duty correction circuit corrects a duty rate of an input clock signal based on a duty control code to generate an output clock signal. The information generation circuit compares a difference between operation power voltages based on an operation mode to generate voltage information. The duty control circuit receives the voltage information from the information generation circuit and generates the duty control code that includes the voltage information based on a duty rate of the output clock signal.
    Type: Application
    Filed: February 7, 2023
    Publication date: January 4, 2024
    Applicant: SK hynix Inc.
    Inventors: Dae Ho YANG, Min Su KIM, Kwan Su SHON, Keun Seon AHN, Soon Sung AN, Su Han LEE, Jae Hoon JUNG, Kyeong Min CHAE, Jae Hyeong HONG, Jun Sun HWANG
  • Patent number: 11837310
    Abstract: The present disclosure relates to a memory device for correcting a pulse duty ratio and a memory system including the same, and relates to a memory device which corrects the duty ratio of a primary pulse of a memory device control signal, and a memory system including the same.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: December 5, 2023
    Assignee: SK hynix Inc.
    Inventors: Jaehyeong Hong, In Seok Kong, Gwan Woo Kim, Jae Young Park, Kwan Su Shon, Soon Sung An, Daeho Yang, Sung Hwa Ok, Junseo Jang, Yo Han Jeong, Eun Ji Choi
  • Publication number: 20230335167
    Abstract: A semiconductor device includes a data input circuit suitable for receiving a training clock to provide first data signals and a strobe signal according to a plurality of input control signals in a training mode; a delay circuit suitable for outputting second data signals by delaying the first data signals according to delay values corresponding to respective setting codes; a data alignment circuit suitable for outputting third data signals by aligning the second data signals according to the strobe signal; a code generation circuit suitable for generating a preliminary code corresponding to the third data signals according to the training clock, and sequentially storing the preliminary code as the setting codes according to a code-lock signal; and a lock-detection circuit suitable for activating the code-lock signal based on the training clock and the preliminary code.
    Type: Application
    Filed: September 22, 2022
    Publication date: October 19, 2023
    Inventors: Soon Sung AN, Kwan Su Shon
  • Publication number: 20230208410
    Abstract: A signal generation apparatus includes a glitch rejection circuit including n m-stage inverters coupled in series, and configured to receive an input signal and perform an inverting operation on the input signal, based on a plurality of voltage signals, to generate an output signal and adjust switching threshold voltages of the m-stage inverters, based on the plurality of voltage signals, to generate the glitch-removed output signal, when a glitch occurs in the input signal, a level detection circuit to detect a logic level of the output signal provided from the glitch rejection circuit to generate a level detection signal and a complementary level detection signal, and a voltage signal generation circuit configured to receive the input signal, a complementary input signal, the level detection signal, and the complementary level detection signal to generate the plurality of voltage signals and provide the plurality of voltage signals to the glitch rejection circuit.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 29, 2023
    Applicant: SK hynix Inc.
    Inventors: Jae Hyeong HONG, Dae Ho YANG, Jun Seo JANG, In Seok KONG, Kwan Su SHON, Soon Sung AN, Yo Han JEONG
  • Patent number: 11671076
    Abstract: Devices and methods for detecting and correcting duty cycles are described. An input switching unit is configured to perform at least one of an operation of outputting differential input signals as a first combination of first and second output signals and an operation of outputting the differential input signals as a second combination of the first and second output signals, according to one of a plurality of control signals. A comparator is configured to receive the first output signal through a first input terminal thereof, to receive the second output signal through a second input terminal thereof, to generate duty detection signals by comparing the signal of the first input terminal and the signal of the second input terminal according to at least another one of the plurality of control signals, and to adjust an offset of at least one of the first input terminal and the second input terminal.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: June 6, 2023
    Assignee: SK hynix Inc.
    Inventors: Dae Ho Yang, Kwan Su Shon, Yo Han Jeong, Dong Shin Jo
  • Patent number: 11670350
    Abstract: A data input buffer includes a plurality of buffer units configured to receive a first impedance calibration code and a second impedance calibration code, wherein each of the plurality of buffer units outputs an offset detected with a first input terminal and a second input terminal thereof short-circuited, as write data, and wherein a buffer unit corresponding to a current value of the first impedance calibration code among the plurality of buffer units is configured to correct the offset according to the second impedance calibration code.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: June 6, 2023
    Assignee: SK hynix Inc.
    Inventors: Soon Sung An, Kwan Su Shon
  • Publication number: 20230115436
    Abstract: A duty cycle correction device includes a duty cycle correction circuit and a duty cycle control circuit. The duty cycle correction circuit corrects a duty cycle of an input clock signal based on a duty cycle control signal and a duty cycle resolution control signal to generate an output clock signal. The duty cycle control circuit generates the duty cycle control signal by detecting a duty cycle of the output clock signal, generates a duty cycle correction completion signal when duty cycle correction is completed, and recorrects the duty cycle of the input clock signal by activating the duty cycle resolution control signal when the duty cycle correction completion signal is activated at an earlier timing than a reference time.
    Type: Application
    Filed: September 15, 2022
    Publication date: April 13, 2023
    Inventors: Dae Ho Yang, Kwan Su Shon, Jong Hun Lim, Jun Seo Jang, Yo Han Jeong, Jae Hyeong Hong, Byung Joo Hwang
  • Publication number: 20230111807
    Abstract: The present technology may include a first detection unit configured to generate an output signal by detecting a level of an input terminal in response to a transition of a control clock signal during a normal read operation, and a second detection unit configured to generate the output signal by detecting the level of the input terminal regardless of the transition of the control clock signal during a state information read operation.
    Type: Application
    Filed: March 24, 2022
    Publication date: April 13, 2023
    Applicant: SK hynix Inc.
    Inventors: Eun Ji CHOI, Keun Seon AHN, Kwan Su SHON, Yo Han JEONG
  • Publication number: 20230056686
    Abstract: The present disclosure relates to a memory device for correcting a pulse duty ratio and a memory system including the same, and relates to a memory device which corrects the duty ratio of a primary pulse of a memory device control signal, and a memory system including the same.
    Type: Application
    Filed: January 5, 2022
    Publication date: February 23, 2023
    Inventors: Jaehyeong HONG, In Seok KONG, Gwan Woo KIM, Jae Young PARK, Kwan Su SHON, Soon Sung AN, Daeho YANG, Sung Hwa OK, Junseo JANG, Yo Han JEONG, Eun Ji CHOI
  • Publication number: 20230046522
    Abstract: Devices and methods for detecting and correcting duty cycles are described. An input switching unit is configured to perform at least one of an operation of outputting differential input signals as a first combination of first and second output signals and an operation of outputting the differential input signals as a second combination of the first and second output signals, according to one of a plurality of control signals. A comparator is configured to receive the first output signal through a first input terminal thereof, to receive the second output signal through a second input terminal thereof, to generate duty detection signals by comparing the signal of the first input terminal and the signal of the second input terminal according to at least another one of the plurality of control signals, and to adjust an offset of at least one of the first input terminal and the second input terminal.
    Type: Application
    Filed: November 2, 2022
    Publication date: February 16, 2023
    Applicant: SK hynix Inc.
    Inventors: Dae Ho YANG, Kwan Su SHON, Yo Han JEONG, Dong Shin JO
  • Patent number: 11539500
    Abstract: A signal receiving device may include a high-speed receiving circuit, a low-speed receiving circuit, a low-speed synchronization circuit and a low-speed synchronization circuit. The high-speed receiving circuit receives an input signal and generate a high-speed received signal in a first operation mode. The high-speed synchronization circuit generates a high-speed synchronized signal to synchronize the high-speed received signal with a clock signal. The low-speed receiving circuit receives the input signal and generate a low-speed received signal in a second operation mode. The low-speed synchronization circuit generates a low-speed synchronized signal to synchronize the low-speed received signal with the clock signal. According to an operation mode, one of the high-speed synchronized signal and the low-speed synchronized signal is selected as an internal signal.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 27, 2022
    Assignee: SK hynix Inc.
    Inventors: Soon Sung An, Kwan Su Shon, Jin Ha Hwang
  • Patent number: 11522529
    Abstract: Devices and methods for detecting and correcting duty cycles are described. An input switching unit is configured to perform at least one of an operation of outputting differential input signals as a first combination of first and second output signals and an operation of outputting the differential input signals as a second combination of the first and second output signals, according to one of a plurality of control signals. A comparator is configured to receive the first output signal through a first input terminal thereof, to receive the second output signal through a second input terminal thereof, to generate duty detection signals by comparing the signal of the first input terminal and the signal of the second input terminal according to at least another one of the plurality of control signals, and to adjust an offset of at least one of the first input terminal and the second input terminal.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: December 6, 2022
    Assignee: SK hynix Inc.
    Inventors: Dae Ho Yang, Kwan Su Shon, Yo Han Jeong, Dong Shin Jo
  • Publication number: 20220335989
    Abstract: A data input buffer includes a plurality of buffer units configured to receive a first impedance calibration code and a second impedance calibration code, wherein each of the plurality of buffer units outputs an offset detected with a first input terminal and a second input terminal thereof short-circuited, as write data, and wherein a buffer unit corresponding to a current value of the first impedance calibration code among the plurality of buffer units is configured to correct the offset according to the second impedance calibration code.
    Type: Application
    Filed: September 13, 2021
    Publication date: October 20, 2022
    Applicant: SK hynix Inc.
    Inventors: Soon Sung AN, Kwan Su SHON
  • Patent number: 11461051
    Abstract: The present technology relates to an electronic device. A storage device in which a memory device controls an ODT operation to improve operation performance of the memory device with a small number of pins includes a plurality of memory devices comprising a target memory device in which an operation is performed and non-target memory devices, and a memory controller configured to control the plurality of memory devices. Each of the plurality of memory devices includes an on die termination (ODT) flag generator configured to generate a flag that indicates that an ODT operation is possible for the non-target memory devices, and an ODT performer configured to determine whether the ODT operation is an ODT read operation for a read operation or an ODT write operation for a write operation based on the flag and configured to generate an enable signal that enables the ODT read operation or the ODT write operation.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: October 4, 2022
    Assignee: SK hynix Inc.
    Inventors: Jun Sun Hwang, Jung Hwan Lee, Kwan Su Shon
  • Publication number: 20220209751
    Abstract: Devices and methods for detecting and correcting duty cycles are described. An input switching unit is configured to perform at least one of an operation of outputting differential input signals as a first combination of first and second output signals and an operation of outputting the differential input signals as a second combination of the first and second output signals, according to one of a plurality of control signals. A comparator is configured to receive the first output signal through a first input terminal thereof, to receive the second output signal through a second input terminal thereof, to generate duty detection signals by comparing the signal of the first input terminal and the signal of the second input terminal according to at least another one of the plurality of control signals, and to adjust an offset of at least one of the first input terminal and the second input terminal.
    Type: Application
    Filed: April 13, 2021
    Publication date: June 30, 2022
    Applicant: SK hynix Inc.
    Inventors: Dae Ho YANG, Kwan Su SHON, Yo Han JEONG, Dong Shin JO
  • Publication number: 20220057965
    Abstract: The present technology relates to an electronic device. A storage device in which a memory device controls an ODT operation to improve operation performance of the memory device with a small number of pins includes a plurality of memory devices comprising a target memory device in which an operation is performed and non-target memory devices, and a memory controller configured to control the plurality of memory devices. Each of the plurality of memory devices includes an on die termination (ODT) flag generator configured to generate a flag that indicates that an ODT operation is possible for the non-target memory devices, and an ODT performer configured to determine whether the ODT operation is an ODT read operation for a read operation or an ODT write operation for a write operation based on the flag and configured to generate an enable signal that enables the ODT read operation or the ODT write operation.
    Type: Application
    Filed: February 23, 2021
    Publication date: February 24, 2022
    Applicant: SK hynix Inc.
    Inventors: Jun Sun HWANG, Jung Hwan LEE, Kwan Su SHON
  • Publication number: 20220006605
    Abstract: A signal receiving device may include a high-speed receiving circuit, a low-speed receiving circuit, a low-speed synchronization circuit and a low-speed synchronization circuit. The high-speed receiving circuit receives an input signal and generate a high-speed received signal in a first operation mode. The high-speed synchronization circuit generates a high-speed synchronized signal to synchronize the high-speed received signal with a clock signal. The low-speed receiving circuit receives the input signal and generate a low-speed received signal in a second operation mode. The low-speed synchronization circuit generates a low-speed synchronized signal to synchronize the low-speed received signal with the clock signal. According to an operation mode, one of the high-speed synchronized signal and the low-speed synchronized signal is selected as an internal signal.
    Type: Application
    Filed: September 17, 2021
    Publication date: January 6, 2022
    Applicant: SK hynix Inc.
    Inventors: Soon Sung AN, Kwan Su SHON, Jin Ha HWANG
  • Patent number: 11205464
    Abstract: A semiconductor apparatus includes a first receiver, a second receiver, a first delay line, and a second delay line. The first receiver receives an input signal using a first supply voltage. The first delay line delays an output of the first receiver based on a first delay control signal and a first complementary delay control signal to generate a received signal. The second receiver receives a clock signal using a second supply voltage. The second delay line delays an output of the second receiver based on a second delay control signal and a second complementary delay control signal to generate a received clock signal. Delay amounts of the first and second delay lines are complementarily changed based on the first and second supply voltages.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: December 21, 2021
    Assignee: SK hynix Inc.
    Inventors: Soon Sung An, Kwan Su Shon
  • Patent number: 11158356
    Abstract: Provided is a calibration circuit and operating method of the calibration circuit. A calibration circuit includes a first resistor code output circuit and a second resistor code output circuit. The first resistor code output circuit is coupled to an external resistor through an input/output pad, performs a first calibration operation, based on a first resistor value, such that a target voltage applied to a first reference node coupled to the input/output pad has a set voltage level, and outputs a first resistor code as a result obtained by performing the first calibration operation. The second resistor code output circuit receives the target voltage, sets an internal resistor value, based on the first resistor code, performs a second calibration operation, based on a second resistor value different from the first resistor value, and outputs a second resistor code as a result obtained by performing the second calibration operation. The first resistor value is a resistor value of the first resistor.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: October 26, 2021
    Assignee: SK hynix Inc.
    Inventors: Jin Ha Hwang, Kwan Su Shon, Keun Seon Ahn, Yo Han Jeong, Eun Ji Choi