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:
Apr. 14, 2026
Filed:
Aug. 08, 2023
Smart Modular Technologies, Inc., Newark, CA (US);
Andrew Mills, Coto de Caza, CA (US);
SMART Modular Technologies, Inc., Newark, CA (US);
Abstract
Systems and methods for selective backup to persistent memory from volatile memory are disclosed. In one aspect, a memory controller includes a detection circuit that detects an address for a memory access and determines a range into which that address falls. The memory controller also includes a touched map that is configured to store an indication as to what areas (or ranges) of memory have been accessed, as determined by the detection circuit. In the event of a command or power interruption, a backup routine initially consults the touched map and only backs up those ranges which have been touched. Such selective backup may reduce the amount of time and power required to make a backup, reducing the demands placed on a backup energy source.