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. 03, 2026
Filed:
Mar. 01, 2024
Kioxia Corporation, Tokyo, JP;
Takashi Takemoto, Yokohama Kanagawa, JP;
Kensaku Yamaguchi, Kawasaki Kanagawa, JP;
Keiri Nakanishi, Kawasaki Kanagawa, JP;
Kohei Oikawa, Kawasaki Kanagawa, JP;
Sho Kodama, Yokohama Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A memory system includes a nonvolatile memory and a controller. The controller is configured to maintain an address mapping table including first mapping information indicating correspondence between logical addresses and physical addresses of the nonvolatile memory in units of physical regions each having a predetermined size. The controller, during a write operation compresses write data of the predetermined size into a compressed write data, determines a physical address range in which the compressed write data is to be written, writes the compressed write data into the physical address range and also second mapping information into an area in one or more physical regions spanned by the physical address range, and updates the address mapping table. The second mapping information indicates a logical address of the write data, an information capable of specifying an offset, and a size of the compressed write data.