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:
Aug. 22, 2023
Filed:
Sep. 22, 2020
Kioxia Corporation, Tokyo, JP;
Shunichi Igahara, Kamakura, JP;
Toshikatsu Hida, Yokohama, JP;
Riki Suzuki, Yokohama, JP;
Takehiko Amaki, Yokohama, JP;
Suguru Nishikawa, Osaka, JP;
Yoshihisa Kojima, Kawasaki, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a memory system includes a nonvolatile memory and a controller electrically connected to the nonvolatile memory. The controller selects a write mode from a first mode in which data having N bits is written per one memory cell and a second mode in which data having M bits is written per one memory cell. N is equal to or larger than one. M is larger than N. The controller writes data into the nonvolatile memory in the selected write mode. The controller selects either the first mode or the second mode at least based on a total number of logical addresses mapped in a physical address space of the nonvolatile memory.