ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,821, issued on Aug. 26, was assigned to InnoGrit Technologies Co. Ltd. (Shanghai).

"Valid data retrieval for garbage collection" was invented by Bo Fu (Cupertino, Calif.) and Jie Chen (Milpitas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for data retrieval in garbage collection (GC) processes. A method may include obtaining column addresses based on bitmaps indicating positions of valid data units in respective pages within a plurality of blocks of a non-volatile storage device and issuing data transfer commands to the non-volatile storage device, the data transfer commands including the column addresses t...