Patents by Inventor Chul-Bum Kim

Chul-Bum 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).

  • Publication number: 20240108391
    Abstract: Present disclosure provides a cooling device with safety features and methods for controlling temperature of the cooling device for safe cooling of target surface.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 4, 2024
    Inventors: Gun-Ho KIM, Jae Bum CHO, Dae Hyun KIM, Chul Ho LEE
  • Patent number: 11049547
    Abstract: A memory device includes multiple word lines. A method of operating the memory device includes: performing a first dummy read operation, with respect to first memory cells connected to a first word line among the word lines, by applying a dummy read voltage, having an offset level of a first level, to the first word line; determining, based on a result of the performing of the first dummy read operation, degradation of a threshold voltage distribution of the first memory cells; adjusting an offset level of the dummy read voltage as a second level, based on a result of the determining of the threshold voltage distribution; and performing a second dummy read operation with respect to second memory cells connected to a second word line among the word lines, by applying a dummy read voltage, having the offset level adjusted as the second level, to the second word line among the word lines.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han-Jun Lee, Seung-Bum Kim, Chul-Bum Kim, Seung-Jae Lee
  • Patent number: 10734082
    Abstract: A memory device includes multiple word lines. A method of operating the memory device includes: performing a first dummy read operation, with respect to first memory cells connected to a first word line among the word lines, by applying a dummy read voltage, having an offset level of a first level, to the first word line; determining, based on a result of the performing of the first dummy read operation, degradation of a threshold voltage distribution of the first memory cells; adjusting an offset level of the dummy read voltage as a second level, based on a result of the determining of the threshold voltage distribution; and performing a second dummy read operation with respect to second memory cells connected to a second word line among the word lines, by applying a dummy read voltage, having the offset level adjusted as the second level, to the second word line among the word lines.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han-Jun Lee, Seung-Bum Kim, Chul-Bum Kim, Seung-Jae Lee
  • Publication number: 20190267104
    Abstract: A memory device includes multiple word lines. A method of operating the memory device includes: performing a first dummy read operation, with respect to first memory cells connected to a first word line among the word lines, by applying a dummy read voltage, having an offset level of a first level, to the first word line; determining, based on a result of the performing of the first dummy read operation, degradation of a threshold voltage distribution of the first memory cells; adjusting an offset level of the dummy read voltage as a second level, based on a result of the determining of the threshold voltage distribution; and performing a second dummy read operation with respect to second memory cells connected to a second word line among the word lines, by applying a dummy read voltage, having the offset level adjusted as the second level, to the second word line among the word lines.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 29, 2019
    Inventors: HAN-JUN LEE, SEUNG-BUM KIM, CHUL-BUM KIM, SEUNG-JAE LEE
  • Patent number: 10171078
    Abstract: Non-volatile memory devices including on-die termination circuits connected to an input/output circuit and an on-die termination control logic detecting a preamble of a strobe signal based on a command and a control signal and activating the on-die termination within the preamble period.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: January 1, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Bum Kim, Sangchul Kang, Jinho Ryu, Seokcheon Kwon
  • Patent number: 9928006
    Abstract: A memory device may include an input/output control unit for receiving input signals through an input/output bus, and a control logic unit for receiving control signals, and when the control signals satisfy first through fourth conditions, the control logic unit identifies a command, an address, data and an identifier of the memory device in the input signals, and latches the input signals. The fourth condition is different from the first through third conditions.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chul-Bum Kim, Dong-Ku Kang
  • Publication number: 20170075626
    Abstract: A memory device may include an input/output control unit for receiving input signals through an input/output bus, and a control logic unit for receiving control signals, and when the control signals satisfy first through fourth conditions, the control logic unit identifies a command, an address, data and an identifier of the memory device in the input signals, and latches the input signals. The fourth condition is different from the first through third conditions.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 16, 2017
    Inventors: CHUL-BUM KIM, DONG-KU KANG
  • Patent number: 9406386
    Abstract: A data storage device includes a nonvolatile memory having a plurality of first memory cells connected to a first word line and a plurality of second memory cells connected to a second word line. A memory controller divides first data to be programmed in the first memory cells into first and second data groups and divides second data to be programmed in the second memory cells into third and fourth data groups. The nonvolatile memory device performs a third program operation of the second data group and a fourth program operation of the fourth data group after sequentially performing a first program operation of the first data group and a second program operation of the third data group.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: August 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Duk Yu, Chul Bum Kim, Dongku Kang
  • Publication number: 20160189760
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Application
    Filed: March 7, 2016
    Publication date: June 30, 2016
    Inventors: Chul Bum KIM, Hyung Gon KIM, Chul Ho LEE, Hong Seok CHANG
  • Patent number: 9318172
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 19, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Bum Kim, Hyung Gon Kim, Chul Ho Lee, Hong Seok Chang
  • Publication number: 20160036438
    Abstract: Non-volatile memory devices including on-die termination circuits connected to an input/output circuit and an on-die termination control logic detecting a preamble of a strobe signal based on a command and a control signal and activating the on-die termination within the preamble period.
    Type: Application
    Filed: October 14, 2015
    Publication date: February 4, 2016
    Inventors: Chul Bum KIM, Sangchul KANG, Jinho RYU, Seokcheon KWON
  • Publication number: 20160035427
    Abstract: A data storage device includes a nonvolatile memory having a plurality of first memory cells connected to a first word line and a plurality of second memory cells connected to a second word line. A memory controller divides first data to be programmed in the first memory cells into first and second data groups and divides second data to be programmed in the second memory cells into third and fourth data groups. The nonvolatile memory device performs a third program operation of the second data group and a fourth program operation of the fourth data group after sequentially performing a first program operation of the first data group and a second program operation of the third data group.
    Type: Application
    Filed: July 13, 2015
    Publication date: February 4, 2016
    Inventors: JAE-DUK YU, CHUL BUM KIM, DONGKU KANG
  • Patent number: 9183901
    Abstract: Non-volatile memory devices including on-die termination circuits connected to an input/output circuit and an on-die termination control logic detecting a preamble of a strobe signal based on a command and a control signal and activating the on-die termination within the preamble period.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: November 10, 2015
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Chul Bum Kim, Sangchul Kang, Jinho Ryu, Seokcheon Kwon
  • Publication number: 20150228318
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 13, 2015
    Inventors: CHUL BUM KIM, HYUNG GON KIM, CHUL HO LEE, HONG SEOK CHANG
  • Patent number: 9036431
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: May 19, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Bum Kim, Hyung Gon Kim, Chul Ho Lee, Hong Seok Chang
  • Patent number: 8983379
    Abstract: A data transmitting and receiving apparatus includes a coil configured to transmit and receive data through inductive coupling, where a voltage drop across the coil constitutes a sensing signal. The apparatus further includes an input unit configured to generate transmission data and a replica signal in accordance with an input data signal, the transmission data being supplied to the coil. The apparatus still further includes a replica unit configured to generate a compensation signal in accordance with the replica signal, and an output unit configured to extract reception data from the sensing signal using the compensation signal.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: March 17, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Chul Bum Kim, Jangwoo Lee, Changsik Yoo, Minki Jeon
  • Publication number: 20140347942
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Application
    Filed: August 13, 2014
    Publication date: November 27, 2014
    Inventors: Chul Bum Kim, Hyung Gon Kim, Chul Ho Lee, Hong Seok Chang
  • Patent number: RE48013
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 26, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Bum Kim, Hyung Gon Kim, Chul Ho Lee, Hong Seok Chang
  • Patent number: RE48431
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: February 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Bum Kim, Hyung Gon Kim, Chul Ho Lee, Hong Seok Chang
  • Patent number: RE49145
    Abstract: A method of performing a read operation on nonvolatile memory device comprises receiving a read command, receiving addresses, detecting a transition of a read enable signal, generating a strobe signal based on the transition of the read enable signal, reading data corresponding to the received addresses, and outputting the read data after the strobe signal is toggled a predetermined number of times.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: July 19, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Bum Kim, Hyung Gon Kim, Chul Ho Lee, Hong Seok Chang