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. 10, 2022
Filed:
Jul. 09, 2020
Board of Trustees of the University of Illinois, Urbana, IL (US);
Jian Huang, Champaign, IL (US);
Board of Trustees of the University of Illinois, Urbana, IL (US);
Abstract
A memory device (or memory sub-system) includes one or more memory components having multiple blocks, the multiple blocks containing pages of data. A processing device is coupled to the one or more memory components. The processing device to execute firmware to: track write timestamps of the pages of data that have been marked as invalid; retain a storage state stored for each page marked as invalid, wherein invalid data of the marked pages remains accessible via the storage states; in response to a write timestamp of a page being beyond a retention time window, mark the page as expired, indicating that the page is an expired page; and reclaim the expired page for storage of new data during a garbage collection operation.