US Patent Issued on Nov. 3 for "Dynamic row address mapping for mitigating row hammer effect in DRAM" (Iowa Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,784,859, issued on Nov. 3.

"Dynamic row address mapping for mitigating row hammer effect in DRAM" was invented by James Maxted (Cedar Rapids, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dynamic mapping row decoder that is configured for storing a virtual row address for each of the plurality of rows and a state value for each of the plurality of rows wherein the state value is one of an active state and an inactive state. Control logic is provided to ensure data is never written back to the same row from which the data was immediately previously read."

The patent was filed on Nov. 7, 2025, under Application No. 19/382,665.

*For further inform...