ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,511,231, issued on Dec. 30, was assigned to KIOXIA Corp. (Tokyo).
"Memory system and control method" was invented by Tadashi Nagahara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller is configured to execute a garbage collection operation on a nonvolatile memory including blocks, which includes calculating a write amplification; calculating a first threshold changing as a number of first blocks changes based on a number of first blocks storing valid data; increasing the first threshold when the calculated write amplification is less than a target value of the write amplification, decreasing the first threshold when the calculated write...