US Patent Issued to Sandisk Technologies on July 15 for "Data storage device and method for garbage collection in a multi-tier memory" (Indian Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,673, issued on July 15, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).

"Data storage device and method for garbage collection in a multi-tier memory" was invented by Manoj M. Shenoy (Ernakulam, India) and Ramanathan Muthiah (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-tier memory comprises a block of memory with a plurality of sub-blocks (e.g., three sub-blocks). A garbage collection operation that chooses a source block based on a valid fragment count may not be suitable in multi-tier memories where sub-blocks have a dependency on one another (e.g., for an erase or program operation). The embodiments prese...