Patents by Inventor Hyunmyoung KIM

Hyunmyoung KIM 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).

  • Supply voltage detecting circuit, method of operating the same, electronic device comprising the same and electronic system comprising the same
    Patent number: 11650232
    Abstract: An electronic device includes circuitry configured to output a first output signal shifting to a logic high level at a first time in response to a supply voltage reaching a first voltage level, output a second output signal shifting to a logic high level at a second time occurring after the first time in response to the supply voltage reaches a second level higher than the first level; and the circuitry includes an AND gate circuit configured to output a reset signal based on the first output signal and the second output signal.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: May 16, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheolhwan Lim, Junhee Shin, Haejung Choi, Kwangho Kim, Hyunmyoung Kim
  • Power manager circuit and electronic device for detecting internal errors
    Patent number: 11543841
    Abstract: A power manager circuit is provided. The power manager circuit includes a bandgap reference circuit, first and second monitoring circuits, and a reference buffer. The bandgap reference circuit generates a first voltage, based on an external voltage that is external to the power manager circuit. The first monitoring circuit determines a logical value of a first alarm signal, based on whether a first voltage level of the first voltage is within a first range. The reference buffer generates a second voltage, based on the first voltage. The second monitoring circuit determines a logical value of a second alarm signal, based on whether a second voltage level of the second voltage is within a second range.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: January 3, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungmin Yoo, Joowon Park, Tae-Hwang Kong, Sangho Kim, Hyunmyoung Kim, Jaeseung Lee
  • SUPPLY VOLTAGE DETECTING CIRCUIT, METHOD OF OPERATING THE SAME, ELECTRONIC DEVICE COMPRISING THE SAME AND ELECTRONIC SYSTEM COMPRISING THE SAME
    Publication number: 20220357372
    Abstract: An electronic device includes circuitry configured to output a first output signal shifting to a logic high level at a first time in response to a supply voltage reaching a first voltage level, output a second output signal shifting to a logic high level at a second time occurring after the first time in response to the supply voltage reaches a second level higher than the first level; and the circuitry includes an AND gate circuit configured to output a reset signal based on the first output signal and the second output signal.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Cheolhwan LIM, Junhee SHIN, Haejung CHOI, Kwangho KIM, Hyunmyoung KIM
  • Supply voltage detecting circuit, method of operating the same, electronic device comprising the same and electronic system comprising the same
    Patent number: 11397199
    Abstract: An electronic device includes circuitry configured to output a first output signal shifting to a logic high level at a first time in response to a supply voltage reaching a first voltage level, output a second output signal shifting to a logic high level at a second time occurring after the first time in response to the supply voltage reaches a second level higher than the first level; and the circuitry includes an AND gate circuit configured to output a reset signal based on the first output signal and the second output signal.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: July 26, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheolhwan Lim, Junhee Shin, Haejung Choi, Kwangho Kim, Hyunmyoung Kim
  • POWER MANAGER CIRCUIT AND ELECTRONIC DEVICE FOR DETECTING INTERNAL ERRORS
    Publication number: 20210294365
    Abstract: A power manager circuit is provided. The power manager circuit includes a bandgap reference circuit, first and second monitoring circuits, and a reference buffer. The bandgap reference circuit generates a first voltage, based on an external voltage that is external to the power manager circuit. The first monitoring circuit determines a logical value of a first alarm signal, based on whether a first voltage level of the first voltage is within a first range. The reference buffer generates a second voltage, based on the first voltage. The second monitoring circuit determines a logical value of a second alarm signal, based on whether a second voltage level of the second voltage is within a second range.
    Type: Application
    Filed: October 13, 2020
    Publication date: September 23, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: SUNGMIN YOO, Joowon Park, Tae-Hwang Kong, Sangho Kim, Hyunmyoung Kim, Jaeseung Lee
  • SUPPLY VOLTAGE DETECTING CIRCUIT, METHOD OF OPERATING THE SAME, ELECTRONIC DEVICE COMPRISING THE SAME AND ELECTRONIC SYSTEM COMPRISING THE SAME
    Publication number: 20210239744
    Abstract: An electronic device includes circuitry configured to output a first output signal shifting to a logic high level at a first time in response to a supply voltage reaching a first voltage level, output a second output signal shifting to a logic high level at a second time occurring after the first time in response to the supply voltage reaches a second level higher than the first level; and the circuitry includes an AND gate circuit configured to output a reset signal based on the first output signal and the second output signal.
    Type: Application
    Filed: September 29, 2020
    Publication date: August 5, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Cheolhwan LIM, Junhee SHIN, Haejung CHOI, Kwangho KIM, Hyunmyoung KIM