公开(公告)号：US12153803B2

公开(公告)日：2024-11-26

申请号：US18200186

申请日：2023-05-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeongjae Cho ,  In-Su Kim

IPC: G06F3/06

Abstract: A storage device includes: a memory; and a storage controller configured to control the memory and to update meta data by controlling the memory. The storage controller includes a journal manager having a range table. The journal manager is configured to: generate a plurality of journal data associated with the update of the meta data, restore the meta data by sequentially performing a replay operation for each of the plurality of journal data, update the range table based on the plurality of journal data, and skip the replay operation for at least one of the plurality of journal data based on the range table.

公开(公告)号：US20250165391A1

公开(公告)日：2025-05-22

申请号：US18735671

申请日：2024-06-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin Yong Park ,  Jung Ho Park ,  In-Su Kim ,  Jun Yeong Seok ,  Jae Yong Jeong

IPC: G06F12/02

Abstract: A storage device and an operating method of the storage device are provided. The storage device comprises a non-volatile memory including a virtual block including an L2P pair region storing a pair of a logical page number (LPN) and a physical page number (PPN) (LPN-PPN pair) and a data region storing data addressed to the PPN, a volatile memory including an L2V table storing a virtual block number (VBN) corresponding to the LPN, an L2P cache storing the LPN-PPN pair, and an LPN range map storing a portion of the LPN stored in the L2P pair region of the virtual block, and a controller configured to control the non-volatile memory and the volatile memory.

公开(公告)号：US20250139000A1

公开(公告)日：2025-05-01

申请号：US18768411

申请日：2024-07-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jungjeong Jo ,  Geontaek Lee ,  In-Su Kim ,  Beomkyu Shin ,  Jaeyong Jeong

IPC: G06F12/02 ,  G06F13/16

Abstract: A storage device configured to perform address mapping in a multi-domain manner includes a non-volatile memory device including a plurality of dies associated with a first domain or a second domain, and a storage controller configured to map a logical address of a write request to a first physical address mapped to the first domain. Responsive to detecting concentration of a workload or resource corresponding to the write request in the first domain at a reference rate or more, the storage controller is configured to redirect the first physical address mapped to the first domain to a second physical address assigned to the second domain.

公开(公告)号：US11468952B2

公开(公告)日：2022-10-11

申请号：US17191412

申请日：2021-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： In-Su Kim ,  Hyun Jin Choi ,  Alain Tran ,  Beom Kyu Shin ,  Woo Seong Cheong

IPC: G11C16/10 ,  G11C16/16 ,  G11C16/26 ,  G11C16/32

Abstract: A memory controller includes an interface and a control module. The interface interfaces with a memory device which includes a plurality of dies that each include a plurality of blocks. The control module groups a plurality of blocks included in different dies and manages the plurality of blocks as a super block. The control module performs scheduling to alternately perform a program on a part of an Nth super block, wherein N is a natural number, and a phased erase on an N+1st super block, and the control module completes the program on the Nth super block and the erase on the Nth super block before the program on the N+1st super block starts.

公开(公告)号：US12073095B2

公开(公告)日：2024-08-27

申请号：US17938291

申请日：2022-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： In-Su Kim

IPC: G06F3/06

CPC classification number: G06F3/0622 ,  G06F3/0659 ,  G06F3/0679

Abstract: An operation method of a storage device which includes a nonvolatile memory device and communicates with a host based on a cryptographic key includes setting up a first key identifier and a first lifetime of a first cryptographic key based on a first command received from the host. The method further includes, after the first lifetime is expired, when a second command including the first key identifier is received from the host, performing a data protect operation on the first cryptographic key.