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:
Nov. 18, 2025
Filed:
Mar. 03, 2023
Kioxia Corporation, Tokyo, JP;
Akifumi Fukuda, Yokohama Kanagawa, JP;
Kenta Yasufuku, Yokohama Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A memory system includes a non-volatile memory and a controller including a memory having a lower access latency than the non-volatile memory. The controller is configured to track addresses of data stored in the non-volatile memory that were subject to prior wear leveling processes, in a buffer configured in the memory of the controller, perform a current wear leveling process on data stored in the non-volatile memory, and determine whether an address of the data subject to the current wear leveling process is stored in the buffer, and perform a pinning process to disable overwrite of data stored in the memory of the controller and corresponding to the address.