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:
Jan. 14, 2025
Filed:
Feb. 27, 2023
Kioxia Corporation, Tokyo, JP;
Hiromi Hoshino, Kawasaki Kanagawa, JP;
Yoko Masuo, Iruma Saitama, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A memory system connectable to a host includes a nonvolatile memory and a controller. The nonvolatile memory includes physical blocks. The controller is configured to assign each of a plurality of block groups, each block group including a predetermined number or more of the physical blocks, to one of categories. The controller assigns block groups having a total capacity equal to a fraction of the overprovisioning capacity that is equal to a first threshold value, to the first category, and block groups having a total capacity equal to a remaining part of the overprovisioning capacity to the third category. When an overprovisioning ratio falls below a second threshold value, the controller reassigns one or more block groups in the third category to the first category.