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:
Sep. 06, 2022
Filed:
Mar. 03, 2020
Kioxia Corporation, Minato-ku, JP;
Takehiko Amaki, Yokohama, JP;
Toshikatsu Hida, Yokohama, JP;
Shunichi Igahara, Kamakura, JP;
Yoshihisa Kojima, Kawasaki, JP;
Suguru Nishikawa, Osaka, JP;
Kioxia Corporation, Minato-ku, JP;
Abstract
According to one embodiment, a memory system includes a non-volatile memory including first and second block groups, and a controller that performs a first write operation for the first block group and the first or a second write operation for the second block group. A first or second number of bits is written into a memory cell in the first or the second write operation. The second number of bits is larger than the first number of bits. The controller allocates a block to a buffer as a write destination block in the first write operation based on a degree of wear-out of at least one block, and writes data from an external device into the buffer in the first write operation.