Samsung patents memory system that saves data based on power levels
Samsung describes a memory device that uses fast, temporary storage to hold data before moving it to slower, permanent storage. A controller decides when to move this data based on how much has changed and the current power level.
In the filing’s own words
A persistent memory device is disclosed. A non-volatile storage may store a data, and a volatile storage may cache the data. A cache controller may manage access to the data in the non-volatile storage and the volatile storage. The persistent memory device may include a storage for a table to associate a first number of dirty pages of the data to copy from the volatile storage to the non-volatile storage with an energy level. A second controller may be configured to copy a dirty page of the data from the volatile storage to the non-volatile storage based at least in part on a second number of dirty pages of the data in the volatile storage exceeding the first number of dirty pages.
What exactly they claim (claim 1)
1. A persistent memory device, comprising: a non-volatile storage for a data; a volatile storage as a cache for the data; a cache controller to manage access to the data in the non-volatile storage and the volatile storage; and a storage for a table to associate a first number of dirty pages of the data to copy from the volatile storage to the non-volatile storage with an energy level, wherein a second controller is configured to copy a dirty page of the data from the volatile storage to the non-volatile storage based at least in part on a second number of dirty pages of the data in the volatile storage exceeding the first number of dirty pages.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- INCREMENTAL DIRTY DATA FLUSH FOR PERSISTENT MEMORY
- Publication number
- US20260319962A1
- Application number
- 19356034
- Filed
- Oct 10, 2025
- Published
- Oct 15, 2026
- Inventors
- 7
- Claims
- 20
Classified under
G06F 12/0891 Physics & computingG06F 1/30 Physics & computingG06F 12/0882 Physics & computingMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.