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:
May. 20, 2025
Filed:
Jan. 31, 2023
Biswajit Ray, Madison, AL (US);
Aleksandar Milenkovic, Madison, AL (US);
MD Raquibuzzaman, Huntsville, AL (US);
Matchima Buddhanoy, Huntsville, AL (US);
Biswajit Ray, Madison, AL (US);
Aleksandar Milenkovic, Madison, AL (US);
Md Raquibuzzaman, Huntsville, AL (US);
Matchima Buddhanoy, Huntsville, AL (US);
Abstract
A system for performing sanitization of multi-level cell (MLC) memory has a memory controller configured to read and buffer at least a first page of MLC memory that shares MLCs with at least a second page. The memory controller sanitizes the second page by performing at least one write operation to adjust the charge levels in the MLCs so that each bit of the second page is forced to the same value or to a value that mirrors the value of another bit of the same cell. Thus, for multiple pages sharing the same MLCs, the data of at least one page can be sanitized while the data of at least one other page is retained. Such sanitizing can be achieved without having to perform an erase operation, thereby helping to prevent or reduce memory degradation.