Patents by Inventor Yeon Kyu Choi

Yeon Kyu Choi 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: 20210166749
    Abstract: A memory device includes a clock receiver configured to receive, from a memory controller, a write clock that is used to receive write data during a data write operation, a duty monitor configured to generate first monitoring information by monitoring a duty of the write clock, and a duty adjuster configured to adjust the duty of the write clock in response to a duty control signal and output an adjusted write clock. The memory device provides the first monitoring information to the memory controller, and receives the duty control signal, generated using the first monitoring information, from the memory controller.
    Type: Application
    Filed: January 14, 2021
    Publication date: June 3, 2021
    Inventors: DAE-SIK MOON, GIL-HOON CHA, KI-SEOK OH, CHANG-KYO LEE, YEON-KYU CHOI, JUNG-HWAN CHOI, KYUNG-SOO HA, SEOK-HUN HYUN
  • Publication number: 20210082479
    Abstract: A method of operating memory devices disposed in different ranks of a multi-rank memory device and sharing a signal line includes receiving, in all of the memory devices included in the multi-rank memory device, on-die termination (ODT) state information of the signal line. The method further includes storing, in each of the memory devices of the multi-rank memory device, the ODT state information of the signal line in a mode register. The method further includes generating, in each of the memory devices of the multi-rank memory device, a control signal based on the ODT state information of the signal line stored in the mode register. The method further includes changing, in each of the memory devices of the multi-rank memory device, an ODT setting of the signal line in response to the control signal.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Inventors: DAE-SIK MOON, KYUNG-SOO HA, YOUNG-SOO SOHN, KI-SEOK OH, CHANG-KYO LEE, JIN-HOON JANG, YEON-KYU CHOI, SEOK-HUN HYUN
  • Patent number: 10923175
    Abstract: A memory device includes a clock receiver configured to receive, from a memory controller, a write clock that is used to receive write data during a data write operation, a duty monitor configured to generate first monitoring information by monitoring a duty of the write clock, and a duty adjuster configured to adjust the duty of the write clock in response to a duty control signal and output an adjusted write clock. The memory device provides the first monitoring information to the memory controller, and receives the duty control signal, generated using the first monitoring information, from the memory controller.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-Sik Moon, Gil-Hoon Cha, Ki-Seok Oh, Chang-Kyo Lee, Yeon-Kyu Choi, Jung-Hwan Choi, Kyung-Soo Ha, Seok-Hun Hyun
  • Patent number: 10908827
    Abstract: A semiconductor memory device is configured to input a mode set code and set data on-the-fly in response to a mode set command, process data bit number information a write command to generate a first data signal, process data bit number information with a read command to generate a second data signal in response to the data on-the-fly indicating an enabled state, access a selected memory cell based on a word line selection signal generated using a row address and active command and a column selection signal generated using a column address and write command or read command, process a first quantity of data bits and transmit the first quantity of data bits to the selected memory cell in response to the first data signal, and process data received from the selected memory cell and output a second quantity of data bits in response to the second data signal.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: February 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon Kyu Choi, Ki Seok Oh
  • Patent number: 10885950
    Abstract: A method of operating memory devices disposed in different ranks of a multi-rank memory device and sharing a signal line includes receiving, in all of the memory devices included in the multi-rank memory device, on-die termination (ODT) state information of the signal line. The method further includes storing, in each of the memory devices of the multi-rank memory device, the ODT state information of the signal line in a mode register. The method further includes generating, in each of the memory devices of the multi-rank memory device, a control signal based on the ODT state information of the signal line stored in the mode register. The method further includes changing, in each of the memory devices of the multi-rank memory device, an ODT setting of the signal line in response to the control signal.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 5, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-Sik Moon, Kyung-Soo Ha, Young-Soo Sohn, Ki-Seok Oh, Chang-Kyo Lee, Jin-Hoon Jang, Yeon-Kyu Choi, Seok-Hun Hyun
  • Publication number: 20200356290
    Abstract: A method and memory device of controlling a plurality of low power states are provided. The method includes: entering a low power mode state, in which memory cell rows of the memory device are refreshed and power consumption is lower than in a self-refresh mode state, in response to a low power state entry command; and exiting the low power mode state based on a low power mode exit latency time that is set in a mode register of the memory device or at least one of an alarm signal and a low power mode exit command.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeon-kyu CHOI, Ki-seok OH, Seung-jun SHIN, Hye-ran KIM
  • Patent number: 10795720
    Abstract: An electronic device according to an embodiment of the present invention comprises: a memory for storing a list including information related to the termination of one or more first applications of a plurality of applications included in the electronic device; and a processor, wherein the processor executes one or more second applications of the plurality of applications, checks contextual information associated with the electronic device, and, if the contextual information satisfies a specified condition, determines whether to terminate at least one executed application of the one or more executed second applications.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yeon-Kyu Choi
  • Patent number: 10754564
    Abstract: A method and memory device of controlling a plurality of low power states are provided. The method includes: entering a low power mode state, in which memory cell rows of the memory device are refreshed and power consumption is lower than in a self-refresh mode state, in response to a low power state entry command; and exiting the low power mode state based on a low power mode exit latency time that is set in a mode register of the memory device or at least one of an alarm signal and a low power mode exit command.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeon-kyu Choi, Ki-seok Oh, Seung-jun Shin, Hye-ran Kim
  • Publication number: 20190392165
    Abstract: Various embodiments of the disclosure provide an apparatus for protecting information. According to various embodiments of the disclosure, an apparatus for monitoring a database includes a transceiver, and a processor operatively coupled to the transceiver. The processor may be configured to acquire a query used in access of the database from the database through the transceiver, replace a first code, included in the acquired query, for query checking to a predefined text, convert the text to a second code for query checking, and output information on validity of the acquired query on the basis of a comparison result of the first code and the second code.
    Type: Application
    Filed: November 22, 2017
    Publication date: December 26, 2019
    Inventor: Yeon-Kyu CHOI
  • Publication number: 20190304517
    Abstract: A method of operating memory devices disposed in different ranks of a multi-rank memory device and sharing a signal line includes receiving, in all of the memory devices included in the multi-rank memory device, on-die termination (ODT) state information of the signal line. The method further includes storing, in each of the memory devices of the multi-rank memory device, the ODT state information of the signal line in a mode register. The method further includes generating, in each of the memory devices of the multi-rank memory device, a control signal based on the ODT state information of the signal line stored in the mode register. The method further includes changing, in each of the memory devices of the multi-rank memory device, an ODT setting of the signal line in response to the control signal.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 3, 2019
    Inventors: Dae-Sik Moon, Kyung-soo Ha, Young-Soo Sohn, Ki-Seok Oh, Chang-Kyo Lee, Jin-Hoon Jang, Yeon-Kyu Choi, Seok-Hun Hyun
  • Publication number: 20190237127
    Abstract: A memory device includes a clock receiver configured to receive, from a memory controller, a write clock that is used to receive write data during a data write operation, a duty monitor configured to generate first monitoring information by monitoring a duty of the write clock, and a duty adjuster configured to adjust the duty of the write clock in response to a duty control signal and output an adjusted write clock. The memory device provides the first monitoring information to the memory controller, and receives the duty control signal, generated using the first monitoring information, from the memory controller.
    Type: Application
    Filed: December 21, 2018
    Publication date: August 1, 2019
    Inventors: DAE-SIK MOON, Gil-Hoon Cha, Ki-Seok Oh, Chang-Kyo Lee, Yeon-Kyu Choi, Jung-Hwan Choi, Kyung-Soo Ha, Seok-Hun Hyun
  • Publication number: 20190205051
    Abstract: A semiconductor memory device is configured to input a mode set code and set data on-the-fly in response to a mode set command, process data bit number information a write command to generate a first data signal, process data bit number information with a read command to generate a second data signal in response to the data on-the-fly indicating an enabled state, access a selected memory cell based on a word line selection signal generated using a row address and active command and a column selection signal generated using a column address and write command or read command, process a first quantity of data bits and transmit the first quantity of data bits to the selected memory cell in response to the first data signal, and process data received from the selected memory cell and output a second quantity of data bits in response to the second data signal.
    Type: Application
    Filed: June 13, 2018
    Publication date: July 4, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yeon Kyu CHOI, Ki Seok Oh
  • Patent number: 10244092
    Abstract: An electronic device is disclosed. The electronic device includes a display, a memory, and a processor electrically connected with the display and the memory, wherein the processor controls to display, on the display, a directory comprising at least one contact list stored in the memory, and controls to identify a selected contact among the contact list based on an external input signal, and receive information to be displayed to the selected contact, and match and store the selected contact and the received information.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yeon-Kyu Choi
  • Publication number: 20190034222
    Abstract: An electronic device according to an embodiment of the present invention comprises: a memory for storing a list including information related to the termination of one or more first applications of a plurality of applications included in the electronic device; and a processor, wherein the processor executes one or more second applications of the plurality of applications, checks contextual information associated with the electronic device, and, if the contextual information satisfies a specified condition, determines whether to terminate at least one executed application of the one or more executed second applications.
    Type: Application
    Filed: January 26, 2017
    Publication date: January 31, 2019
    Inventor: Yeon-Kyu CHOI
  • Publication number: 20180131797
    Abstract: An electronic device is disclosed. The electronic device includes a display, a memory, and a processor electrically connected with the display and the memory, wherein the processor controls to display, on the display, a directory comprising at least one contact list stored in the memory, and controls to identify a selected contact among the contact list based on an external input signal, and receive information to be displayed to the selected contact, and match and store the selected contact and the received information.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 10, 2018
    Inventor: Yeon-Kyu CHOI
  • Publication number: 20180121124
    Abstract: A method and memory device of controlling a plurality of low power states are provided. The method includes: entering a low power mode state, in which memory cell rows of the memory device are refreshed and power consumption is lower than in a self-refresh mode state, in response to a low power state entry command; and exiting the low power mode state based on a low power mode exit latency time that is set in a mode register of the memory device or at least one of an alarm signal and a low power mode exit command.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 3, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeon-kyu CHOI, Ki-seok OH, Seung-jun SHIN, Hye-ran KIM
  • Publication number: 20140068752
    Abstract: An apparatus and method for sensing an input for releasing a predetermined lock function of an electronic device is provided. The method includes setting at least two or more objects for releasing the lock function, outputting an object group including the set objects and an object group including certain objects on a lock screen, allowing a user to select at least two or more objects in the output object groups, and releasing the lock function when the selected objects are identical to previously defined objects.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Yeon-Kyu CHOI
  • Patent number: 8015187
    Abstract: A phone book group management method includes: providing a display field for entering a contact name and a group name of a phone book; receiving a contact name and at least one group name consecutively in the display field; analyzing the received contact name and at least one group name; and registering contact information in a group according to the analyzed contact name and at least one group name. A new group may be created while registering a contact name in a phone book or while editing phone book data of a registered contact. Accordingly, the procedure for registering a contact may be simplified, and management of user groups may be executed more easily and efficiently.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon Kyu Choi, Suk Woo Chae
  • Publication number: 20080263064
    Abstract: The present invention relates to a file processing method and an apparatus for a mobile terminal using an external device. The file processing apparatus includes a storage unit to store files, and a control unit to divide a data file into a file header and a file body, to store the file header in the storage unit, and to store the file body in an external device. The file header and the file body of the data file can be stored separately.
    Type: Application
    Filed: November 29, 2007
    Publication date: October 23, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yeon Kyu CHOI
  • Publication number: 20080140933
    Abstract: A method and apparatus for displaying a file in a terminal that may immediately move to a recently copied or selected file, when a removable memory device is inserted into the terminal, are provided. The method of displaying a file in a terminal having a removable memory device includes inspecting access path information of a file stored in the removable memory device when the removable memory device is connected to the terminal, the access path information being stored in a first hidden file, and displaying the file having the access path information.
    Type: Application
    Filed: July 27, 2007
    Publication date: June 12, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yeon Kyu Choi