Patents by Inventor YONG GIL SONG

YONG GIL SONG 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).

  • Memory system and storage device capable of permanently deleting data stored in a non-volatile memory
    Patent number: 10817624
    Abstract: A storage device includes a non-volatile memory including a first block, a second block and a block management area that stores an initial data write time and a final data write time for each of the first block and the second block. The storage device also includes a memory controller that determines a creation time and a modification time for first data in response to a permanently delete command identifying the first data, selects at least one of the first block and the second block to be permanently deleted by comparing the initial data write time and the final data write time for each of the first block and the second block with the creation time and the modification time, and permanently deletes the selected at least one of the first block and the second block.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Hwan Park, Kyung Ho Kim, Min-Chul Kim, Sagar Uttarwar, Yong Gil Song, Min Gon Shin, Sun-Mi Yoo, Hyun Su Jang, Seung Yeun Jeong, Ki Hyun Choi
  • MEMORY SYSTEM AND STORAGE DEVICE CAPABLE OF PERMANENTLY DELETING DATA STORED IN A NON-VOLATILE MEMORY
    Publication number: 20190130135
    Abstract: A storage device includes a non-volatile memory including a first block, a second block and a block management area that stores an initial data write time and a final data write time for each of the first block and the second block. The storage device also includes a memory controller that determines a creation time and a modification time for first data in response to a permanently delete command identifying the first data, selects at least one of the first block and the second block to be permanently deleted by comparing the initial data write time and the final data write time for each of the first block and the second block with the creation time and the modification time, and permanently deletes the selected at least one of the first block and the second block.
    Type: Application
    Filed: May 9, 2018
    Publication date: May 2, 2019
    Inventors: JIN-HWAN PARK, KYUNG HO KIM, MIN-CHUL KIM, SAGAR UTTARWAR, YONG GIL SONG, MIN GON SHIN, SUN-MI YOO, HYUN SU JANG, SEUNG YEUN JEONG, KI HYUN CHOI