ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,281, issued on June 3, was assigned to SK hynix Inc. (Gyeonggi-do, South Korea).

"Computer system including a main memory device with heterogeneous memories and method of operating the same" was invented by Yun Jeong Mun (Gyeonggi-do, South Korea), Rak Kie Kim (Gyeonggi-do, South Korea) and Ho Kyoon Lee (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer system may include a processor; a first memory device; a second memory device; a cache memory including a plurality of cache entries and a cache controller. The cache controller is configured to manage a flag indicating whether a caching data is provided from the first...