The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2024
Filed:
Mar. 16, 2022
Kioxia Corporation, Tokyo, JP;
Takahiro Kawahara, Tokyo, JP;
Mitsunori Tadokoro, Fujisawa Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A memory system according to an embodiment includes a memory system includes a nonvolatile memory and a memory controller. The nonvolatile memory includes blocks. The memory controller includes first and second tables, and first and second storage areas. The first table is managed in units of map segments. The second table includes first entries associated with a plurality of map segments included in the first table. The first storage area is configured to store a change history of the first table. The second storage area is configured to store a physical address of a block that is a storage destination of a copy of a changed map segment and a change history of the second table.