ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,639, issued on July 14, was assigned to SCALEFLUX INC. (Milpitas, Calif.).

"Self-managed DRAM modules with built-in data compression and tiered caching" was invented by Yang Liu (Milpitas, Calif.), Fei Sun (Irvine, Calif.) and Tong Zhang (Albany, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-managed DRAM module and method. A controller chip is configured to handle data access requests according to a process that includes: searching a first tier for an uncompressed cache data block; in response to a first tier hit, serving the uncompressed cache data block to service the data access request; in response to a first tier miss, searching a ...