公开(公告)号：US11294779B2

公开(公告)日：2022-04-05

申请号：US17096978

申请日：2020-11-13

Applicant: Apacer Technology Inc.

Inventor： Yu-Che Lee ,  Jiunn-Chang Lee

IPC: G06F12/00 ,  G06F11/14 ,  G06F12/02 ,  G06F13/16 ,  G06F12/0846 ,  G06F13/40 ,  G06F12/0873 ,  G06F12/10

Abstract: A memory device includes a non-volatile memory chip, a connector and a memory controller. The non-volatile memory chip includes an access partition and a hidden partition. The memory controller is used to set first logical blocks mapping to mapping physical blocks in the access partition. The memory controller is used to maintain a first mapping table recording the first logical blocks and the mapping physical blocks. During backup, the memory controller is used to duplicate data in the mapping physical blocks to the hidden partition according to the first mapping table to form backup physical blocks, and establish a second mapping table setting second logical blocks to map to the backup physical blocks. During recovery, the memory controller is used to map the second logical blocks to the backup physical blocks according to the second mapping table for the host system to recover an environment set at the backup operation.

公开(公告)号：US20240143191A1

公开(公告)日：2024-05-02

申请号：US18087794

申请日：2022-12-22

Applicant: Apacer Technology Inc.

Inventor： Yu-Che Lee

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0659 ,  G06F3/0679

Abstract: A cyclic backup method for a solid-state disk (SSD) device includes writing, by a controller, data into corresponding physical address and reading data from corresponding physical address according to logic address of a first mapping table; receiving, by the controller, a backup signal; writing, by the controller, data into corresponding physical address and reading data from corresponding physical address according to logic address of a second mapping table; reading, by the controller, a first data according to logic address of the first mapping table when the controller cannot read the first data according to logic address of the second mapping table; receiving, by the controller, a recovery signal; and reading, by the controller, data from corresponding physical address according to logic address of the first mapping table.