Patents by Inventor Chan Keun KWON

Chan Keun KWON 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).

  • Publication number: 20240125848
    Abstract: A leakage current detection circuit includes: a mirror circuit configured to copy a leakage current flowing through a node and generate a copy current in a copy node; an oscillation circuit including a charge storage unit, the oscillation circuit being connected to the copy node, charged with the copy current, and configured to generate an oscillation signal by charging and discharging the charge storage unit; and a calculation circuit configured to calculate an amount of the leakage current based on the oscillation signal.
    Type: Application
    Filed: March 1, 2023
    Publication date: April 18, 2024
    Applicant: SK hynix Inc.
    Inventors: Jong Seok JUNG, Chan Keun KWON, Kyeong Hwan PARK, Young Kwan LEE, Suk Hwan CHOI
  • Publication number: 20230403012
    Abstract: A power circuit includes a plurality of regulators and a plurality of in-rush current controllers. The plurality of regulators is coupled to an external power voltage and configured to adjust a level of an input voltage to generate a plurality of internal power voltages. The plurality of in-rush current controllers is configured to provide the input voltage to the plurality of regulators, the input voltage corresponding to an increasement voltage. The increasement voltage has a level rising at a preset rate until the plurality of internal power voltages all reach a target level.
    Type: Application
    Filed: October 14, 2022
    Publication date: December 14, 2023
    Inventors: Suk Hwan CHOI, Chan Keun KWON, Jin Yeop KIM, Chan Hui JEONG
  • Patent number: 11774997
    Abstract: A bandgap reference circuit includes a plurality of current sources including different temperature coefficients, a first trimmer, and a mixer. The first trimmer adjusts current amounts for a plurality of currents, which are individually output from each of the plurality of current sources, to be equal to each other. The mixer adjusts an aggregate ratio and combines the plurality of currents based on the aggregate ratio.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: October 3, 2023
    Assignee: SK hynix Inc.
    Inventors: Jong Seok Jung, Chan Keun Kwon, Jong Seok Kim, Young Kwan Lee
  • Publication number: 20230229185
    Abstract: A bandgap reference circuit includes a plurality of current sources including different temperature coefficients, a first trimmer, and a mixer, The first trimmer adjusts current amounts for a plurality of currents, which are individually output from each of the plurality of current sources, to be equal to each other. The mixer adjusts an aggregate ratio and combines the plurality of currents based on the aggregate ratio.
    Type: Application
    Filed: June 2, 2022
    Publication date: July 20, 2023
    Applicant: SK hynix Inc.
    Inventors: Jong Seok JUNG, Chan Keun KWON, Jong Seok KIM, Young Kwan LEE
  • Patent number: 11416174
    Abstract: The present disclosure relates to a semiconductor system including a semiconductor device and a controller. The semiconductor device outputs a temperature code corresponding to an internal temperature thereof. The controller controls, based on the temperature code, the semiconductor device to set a temperature measurement mode among at least two temperature measurement modes having different temperature measurement periods and to measure the internal temperature in the set temperature measurement mode.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: August 16, 2022
    Assignee: SK hynix Inc.
    Inventor: Chan Keun Kwon
  • Patent number: 11347251
    Abstract: An internal voltage generation circuit comprising: a first voltage generator buffers a first reference voltage from a first to a second time point and integrates the first reference voltage after the second time point to generate a first initial voltage, a divider outputs a second initial voltage by dividing the first initial voltage from the first to the second time point and to outputs the first initial voltage as the second initial voltage after the second time point, a selector selects and output the second initial voltage or a second reference voltage based on a comparison of level of a feedback voltage and the second reference voltage, and a second voltage generator generates an internal voltage depending on a result of comparing levels of an output voltage of the selector and the feedback voltage, and to generates the feedback voltage by dividing the internal voltage.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: May 31, 2022
    Assignee: SK hynix Inc.
    Inventor: Chan Keun Kwon
  • Patent number: 11336292
    Abstract: The present disclosure relates to an electronic device. An analog-digital converter includes an input voltage provider configured to output the input voltage during a plurality of stages, a comparator configured to output a comparison result between the input voltage and one of a plurality of comparison reference voltages, a successive approximation register configured to output at least one bit among the plurality of bits of digital data based on the comparison result, and a digital-analog converter configured to provide the comparator with one comparison reference voltage among the plurality of the comparison reference voltages based on the at least one bit, wherein the digital-analog converter includes a plurality of transistors that are coupled in parallel with each other, the digital-analog converter configured to selectively receive a plurality of reference voltages to generate the one comparison reference voltage.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: May 17, 2022
    Assignee: SK hynix Inc.
    Inventor: Chan Keun Kwon
  • Publication number: 20220109451
    Abstract: The present disclosure relates to an electronic device. An analog-digital converter includes an input voltage provider configured to output the input voltage during a plurality of stages, a comparator configured to output a comparison result between the input voltage and one of a plurality of comparison reference voltages, a successive approximation register configured to output at least one bit among the plurality of bits of digital data based on the comparison result, and a digital-analog converter configured to provide the comparator with one comparison reference voltage among the plurality of the comparison reference voltages based on the at least one bit, wherein the digital-analog converter includes a plurality of transistors that are coupled in parallel with each other, the digital-analog converter configured to selectively receive a plurality of reference voltages to generate the one comparison reference voltage.
    Type: Application
    Filed: March 30, 2021
    Publication date: April 7, 2022
    Applicant: SK hynix Inc.
    Inventor: Chan Keun KWON
  • Patent number: 11251779
    Abstract: Provided is a digital filter that is configured to generate a first integration signal by integrating data groups, which are generated by sampling sample data within a first time period that overlaps with another time period, configured to generate a second integration signal by integrating data groups, which are generated by sampling the sample data within a second time period that is included in the first time period, the first time period and the second time period overlapping with one another, and configured to output a difference between the first and second integration signals as digital data. The first integration signal is generated during a third time period that is included in the first time period.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 15, 2022
    Assignee: SK hynix Inc.
    Inventor: Chan Keun Kwon
  • Publication number: 20210203308
    Abstract: Provided is a digital filter that is configured to generate a first integration signal by integrating data groups, which are generated by sampling sample data within a first time period that overlaps with another time period, configured to generate a second integration signal by integrating data groups, which are generated by sampling the sample data within a second time period that is included in the first time period, the first time period and the second time period overlapping with one another, and configured to output a difference between the first and second integration signals as digital data. The first integration signal is generated during a third time period that is included in the first time period.
    Type: Application
    Filed: June 22, 2020
    Publication date: July 1, 2021
    Applicant: SK hynix Inc.
    Inventor: Chan Keun KWON
  • Publication number: 20210157526
    Abstract: The present disclosure relates to a semiconductor system includes a semiconductor device and a controller. The semiconductor device outputs a temperature code corresponding to an internal temperature thereof. The controller controls, based on the temperature code, the semiconductor device to set a temperature measurement mode among at least two temperature measurement modes having different temperature measurement periods and to measure the internal temperature in the set temperature measurement mode.
    Type: Application
    Filed: May 28, 2020
    Publication date: May 27, 2021
    Inventor: Chan Keun KWON
  • Patent number: 10908028
    Abstract: Provided herein may be a temperature sensing circuit and a semiconductor device having the same. The temperature sensing circuit may include an analog voltage generation circuit configured to convert a temperature into a voltage and output a temperature voltage, an analog-digital converter configured to convert the temperature voltage into a digital code, and a compensation circuit configured to adjust the digital code and then output an operation code to remove noise from the temperature voltage.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 2, 2021
    Assignee: SK hynix Inc.
    Inventor: Chan Keun Kwon
  • Publication number: 20200409405
    Abstract: A voltage trimming circuit may include: a resistor array configured to divide a first voltage at different division ratios through output nodes, output the divided voltages, and change a resistance value based on one or more voltage level control signals; and a multiplexer configured to select one voltage level from the output nodes based on the remainder of the voltage level control signals and output a voltage level of the selected node as an output voltage.
    Type: Application
    Filed: December 19, 2019
    Publication date: December 31, 2020
    Applicant: SK hynix Inc.
    Inventor: Chan Keun KWON
  • Publication number: 20190120698
    Abstract: Provided herein may be a temperature sensing circuit and a semiconductor device having the same. The temperature sensing circuit may include an analog voltage generation circuit configured to convert a temperature into a voltage and output a temperature voltage, an analog-digital converter configured to convert the temperature voltage into a digital code, and a compensation circuit configured to adjust the digital code and then output an operation code to remove noise from the temperature voltage.
    Type: Application
    Filed: May 30, 2018
    Publication date: April 25, 2019
    Inventor: Chan Keun KWON