Patents by Inventor Joo Won OH

Joo Won OH 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: 12113692
    Abstract: A data transmission circuit may include a plurality of data transmission lines configured to transmit a victim data signal through a victim data transmission line, and transmit an adjacent data signal through an adjacent data transmission line disposed adjacent to the victim data transmission line; and a data input/output circuit configured to control a reference voltage level reflected into the victim data signal on the basis of data pattern information of the adjacent data signal, and compare the victim data signal to the reference voltage level and output the comparison result.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: October 8, 2024
    Assignee: SK hynix Inc.
    Inventors: In Seok Kong, Ki Yong Choi, Dong Seok Kim, Sung Mook Kim, Se Won Kim, Joo Won Oh, Keun Jin Chang
  • Publication number: 20240120904
    Abstract: A semiconductor device includes an on-die resistor circuit comprising an on-die resistor, a calibration circuit configured to perform a calibration operation on the on-die resistor, and a calibration control circuit configured to control the calibration operation of the calibration circuit. The calibration circuit includes a current generating circuit configured to supply a calibration current to the on-die resistor and a comparing circuit configured to compare the magnitude of a first input signal that is generated by the calibration current and the on-die resistor with a magnitude of a second input signal that is generated by the calibration current and an external resistor.
    Type: Application
    Filed: February 15, 2023
    Publication date: April 11, 2024
    Applicant: SK hynix Inc.
    Inventors: Dong Seok KIM, Joo Won OH, Keun Jin CHANG
  • Patent number: 11955943
    Abstract: A semiconductor device includes an on-die resistor circuit comprising an on-die resistor, a calibration circuit configured to perform a calibration operation on the on-die resistor, and a calibration control circuit configured to control the calibration operation of the calibration circuit. The calibration circuit includes a current generating circuit configured to supply a calibration current to the on-die resistor and a comparing circuit configured to compare the magnitude of a first input signal that is generated by the calibration current and the on-die resistor with a magnitude of a second input signal that is generated by the calibration current and an external resistor.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: April 9, 2024
    Assignee: SK hynix Inc.
    Inventors: Dong Seok Kim, Joo Won Oh, Keun Jin Chang
  • Publication number: 20230291672
    Abstract: A data transmission circuit may include a plurality of data transmission lines configured to transmit a victim data signal through a victim data transmission line, and transmit an adjacent data signal through an adjacent data transmission line disposed adjacent to the victim data transmission line; and a data input/output circuit configured to control a reference voltage level reflected into the victim data signal on the basis of data pattern information of the adjacent data signal, and compare the victim data signal to the reference voltage level and output the comparison result.
    Type: Application
    Filed: October 3, 2022
    Publication date: September 14, 2023
    Inventors: In Seok KONG, Ki Yong Choi, Dong Seok Kim, Sung Mook Kim, Se Won Kim, Joo Won Oh, Keun Jin Chang
  • Patent number: 11747847
    Abstract: Disclosed is a regulator comprising a first voltage regulator suitable for generating a comparison voltage by comparing a reference voltage with a feedback voltage, and outputting a first voltage control signal and a second voltage control signal based on the comparison voltage; a plurality of second voltage regulators suitable for receiving the first voltage control signal and the second voltage control signal, generating a voltage based on the first voltage control signal and the second voltage control signal, and outputting the generated voltage; and a plurality of control signal transmitters suitable for receiving the first voltage control signal and the second voltage control signal from the first voltage regulator and transferring the received voltage control signals to the plurality of second voltage regulators.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: September 5, 2023
    Assignee: SK hynix Inc.
    Inventors: Joo Won Oh, Keun Jin Chang
  • Patent number: 11588494
    Abstract: A sample-and-hold amplification circuit can include a sampling circuit configured to sample first and second input signals in response to first and second control signals to generate first and second sampled signals, an amplification circuit configured to amplify a voltage difference between the first and second sampled signals to generate first and second output signals, and an offset compensation circuit configured to form a first path between input and output terminals of the amplification circuit in response to the first control signal to store an offset of the input terminal and form a second path between the input and output terminals in response to the second control signal to reflect the offset to the output terminal.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: February 21, 2023
    Assignee: SK hynix Inc.
    Inventors: Joo Won Oh, Keun Jin Chang
  • Publication number: 20220283599
    Abstract: Disclosed is a regulator comprising a first voltage regulator suitable for generating a comparison voltage by comparing a reference voltage with a feedback voltage, and outputting a first voltage control signal and a second voltage control signal based on the comparison voltage; a plurality of second voltage regulators suitable for receiving the first voltage control signal and the second voltage control signal, generating a voltage based on the first voltage control signal and the second voltage control signal, and outputting the generated voltage; and a plurality of control signal transmitters suitable for receiving the first voltage control signal and the second voltage control signal from the first voltage regulator and transferring the received voltage control signals to the plurality of second voltage regulators.
    Type: Application
    Filed: July 7, 2021
    Publication date: September 8, 2022
    Inventors: Joo Won OH, Keun Jin CHANG
  • Publication number: 20220271767
    Abstract: A sample-and-hold amplification circuit can include a sampling circuit configured to sample first and second input signals in response to first and second control signals to generate first and second sampled signals, an amplification circuit configured to amplify a voltage difference between the first and second sampled signals to generate first and second output signals, and an offset compensation circuit configured to form a first path between input and output terminals of the amplification circuit in response to the first control signal to store an offset of the input terminal and form a second path between the input and output terminals in response to the second control signal to reflect the offset to the output terminal.
    Type: Application
    Filed: June 22, 2021
    Publication date: August 25, 2022
    Inventors: Joo Won OH, Keun Jin CHANG
  • Patent number: 10084465
    Abstract: An analog-to-digital converter ADC may be provided. The ADC may include a current driving circuit. The current driving circuit may include an additive current driving circuit and a subtractive current driving circuit configured for adjusting a voltage level of a node. The ADC may include a comparison circuit including a plurality of comparators. Each of the plurality of comparators may be configured to compare a voltage level of the node with a reference voltage.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: September 25, 2018
    Assignee: SK hynix Inc.
    Inventors: Keunjin Chang, Joo Won Oh, Donghoon Sung
  • Publication number: 20180175876
    Abstract: An analog-to-digital converter ADC may be provided. The ADC may include a current driving circuit. The current driving circuit may include an additive current driving circuit and a subtractive current driving circuit configured for adjusting a voltage level of a node. The ADC may include a comparison circuit including a plurality of comparators. Each of the plurality of comparators may be configured to compare a voltage level of the node with a reference voltage.
    Type: Application
    Filed: July 17, 2017
    Publication date: June 21, 2018
    Applicant: SK hynix Inc.
    Inventors: Keunjin CHANG, Joo Won OH, Donghoon SUNG