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Samsung patents storage device that checks multiple maps before writing data

Samsung has filed a patent for a storage device that uses three separate lists, or bit maps, to check if a specific memory cell is ready to accept data. The device only writes to the cell if all three lists confirm it is available, connected to the right control line, and not blocked by a mask.

Why it mattersThis is a routine improvement to how memory controllers manage data writing, likely aimed at increasing reliability or efficiency in standard storage chips.

In the filing’s own words

A storage device. In some embodiments, a storage device includes: first and second storage elements; and a processing circuit, configured to perform a method, the method including: determining that a first bit of a storage element availability bit map is set, the first bit corresponding to the first storage element, the first bit of the storage element availability bit map indicating that the first storage element is available to perform a write operation; determining that a first bit of a first super select line bit map is set, the first bit of the first super select line bit map corresponding to a first select line and to the first storage element; determining that a first bit of a first masking bit map is set, the first bit of the first masking bit map corresponding to the first storage element; and performing a first write operation in the first storage element.

What exactly they claim (claim 1)

1. A method, comprising: determining that a first bit of a storage element availability bit map is set, the first bit corresponding to a first storage element of a nonvolatile memory storage device, the first bit of the storage element availability bit map indicating that the first storage element is available to perform a write operation; determining that a first bit of a first super select line bit map is set, the first bit of the first super select line bit map corresponding to a first select line and to the first storage element; determining that a first bit of a first masking bit map is set, the first bit of the first masking bit map corresponding to the first storage element; and in response to determining that the first bit of the storage element availability bit map is set, and that the first bit of the first super select line bit map is set, and that the first bit of the first masking bit map is set, performing a first write operation in the first storage element.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
STORAGE DEVICE
Publication number
US20260277485A1
Application number
19565509
Filed
Mar 12, 2026
Published
Sep 17, 2026
Inventors
3
Claims
20

Classified under

G06F 3/0659 Physics & computingG06F 3/0619 Physics & computingG06F 3/0688 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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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.