Patents by Inventor Keonhee Cho

Keonhee Cho 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: 20240048132
    Abstract: A flip-flop includes an input logic circuit, a first latch, a second latch, and an output multiplexer; where the input logic circuit outputs a clock bar signal based on an input data bit and a clock signal, where the first latch and the second latch operate based on the input data bit, the clock signal, and a clock bar signal, where the output multiplexer operates based on outputs from nodes of the first and second nodes and outputs an output data bit, and where the input logic circuit has a uniform value in a period where there is no change of a value of the output data bit.
    Type: Application
    Filed: June 7, 2023
    Publication date: February 8, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., UIF (University Industry Foundation), Yonsel university
    Inventors: SEONG-OOK JUNG, SE KEON KIM, HYUNJUN KIM, KYEONG RIM BAEK, KEONHEE CHO
  • Patent number: 11670360
    Abstract: An integrated circuit includes: a cell array including a plurality of memory cells in a plurality of first columns and including a plurality of word line assist cells in at least one second column; a plurality of word lines respectively extending on a plurality of first rows of the cell array and connected to the plurality of memory cells and the plurality of word line assist cells; and a row driver configured to drive the plurality of word lines.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: June 6, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Taemin Choi, Seongook Jung, Keonhee Cho
  • Patent number: 11636894
    Abstract: An integrated circuit includes: a cell array including a plurality of memory cells in a plurality of first rows and a plurality of write assistance cells in at least one second row; a plurality of word lines respectively extending on the plurality of first rows; at least one write assistance line respectively extending on the at least one second row; and a row driver connected to the plurality of word lines and the at least one write assistance line, the row driver being configured to, during a write operation, activate at least one of the plurality of write assistance cells through the at least one write assistance line, wherein each of the plurality of write assistance cells includes the same transistor configuration as each of the plurality of memory cells and has the same footprint as each of the plurality of memory cells.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Heekyung Choi, Taemin Choi, Seongook Jung, Keonhee Cho
  • Patent number: 11568924
    Abstract: An integrated circuit memory device includes a static random access memory (SRAM) cell, and a charge storing circuit electrically coupled to the SRAM cell. A switching controller is provided, which is electrically coupled to the charge storing circuit. The switching controller and the charge storing circuit are collectively configured to save power by recycling charge associated with a bit line electrically coupled to the SRAM cell by: (i) transferring charge from the bit line to a charge storage node electrically coupled to source terminals of a pair of NMOS pull-down transistors within the SRAM cell upon commencement of a SRAM cell write operation, and then (ii) returning at least a portion of the charge to the bit line upon completion of the SRAM cell write operation.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 31, 2023
    Inventors: Taemin Choi, Seongook Jung, Keonhee Cho
  • Publication number: 20220148644
    Abstract: An integrated circuit includes: a cell array including a plurality of memory cells in a plurality of first rows and a plurality of write assistance cells in at least one second row; a plurality of word lines respectively extending on the plurality of first rows; at least one write assistance line respectively extending on the at least one second row; and a row driver connected to the plurality of word lines and the at least one write assistance line, the row driver being configured to, during a write operation, activate at least one of the plurality of write assistance cells through the at least one write assistance line, wherein each of the plurality of write assistance cells includes the same transistor configuration as each of the plurality of memory cells and has the same footprint as each of the plurality of memory cells.
    Type: Application
    Filed: June 1, 2021
    Publication date: May 12, 2022
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Heekyung Choi, Taemin Choi, Seongook Jung, Keonhee Cho
  • Publication number: 20220139442
    Abstract: An integrated circuit includes: a cell array including a plurality of memory cells in a plurality of first columns and including a plurality of word line assist cells in at least one second column; a plurality of word lines respectively extending on a plurality of first rows of the cell array and connected to the plurality of memory cells and the plurality of word line assist cells; and a row driver configured to drive the plurality of word lines.
    Type: Application
    Filed: June 1, 2021
    Publication date: May 5, 2022
    Inventors: Taemin Choi, Seongook Jung, Keonhee Cho
  • Publication number: 20220130453
    Abstract: An integrated circuit memory device includes a static random access memory (SRAM) cell, and a charge storing circuit electrically coupled to the SRAM cell. A switching controller is provided, which is electrically coupled to the charge storing circuit. The switching controller and the charge storing circuit are collectively configured to save power by recycling charge associated with a bit line electrically coupled to the SRAM cell by: (i) transferring charge from the bit line to a charge storage node electrically coupled to source terminals of a pair of NMOS pull-down transistors within the SRAM cell upon commencement of a SRAM cell write operation, and then (ii) returning at least a portion of the charge to the bit line upon completion of the SRAM cell write operation.
    Type: Application
    Filed: May 27, 2021
    Publication date: April 28, 2022
    Applicants: Samsung Electronics Co., Ltd., Industry Academic Cooperation Foundation, Yonsei University
    Inventors: Taemin Choi, Seongook Jung, Keonhee Cho