公开(公告)号：US20230132327A1

公开(公告)日：2023-04-27

申请号：US18086770

申请日：2022-12-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JEKYEOM JEON ,  JOOYOUNG HWANG ,  JEONGUK KANG ,  JUNHEE KIM ,  SUNGHYUN NOH ,  KEUNSAN PARK ,  BYUNGKI LEE

IPC: G06F3/06

Abstract: A storage system performing an overwrite, a host system controlling the storage system, and an operating method of the storage system, wherein the storage system includes a memory device; and a controller that receives new data and an overwrite request from the host system, wherein the overwrite request includes a first logical address for old data and a second logical address for the new data, and performs an overwrite operation by writing the new data corresponding to the second logical address to the memory device and invalidating the old data corresponding to the first logical address according to the overwrite request.

公开(公告)号：US20240143500A1

公开(公告)日：2024-05-02

申请号：US18207963

申请日：2023-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HYUN JIN CHOI ,  SUNGHYUN NOH ,  INSOON JO ,  KUI-YON MUN ,  MYUNG-JIN JUNG

IPC: G06F12/02 ,  G06F12/0882

CPC classification number: G06F12/0246 ,  G06F12/0292 ,  G06F12/0882

Abstract: A memory system which includes a flash memory including a meta block and a data block, and a memory controller including a meta data managing module managing meta data to be stored in the meta block. The meta block includes a plurality of pages. The meta data managing module compares a number of free pages of the plurality of pages with a preset number of free pages, and selects a write target page of the meta data by using one of a consecution meta write operation or a dirty meta write operation, depending on a result of the comparison.