Radian Memory Assigned Patent

Radian Memory Systems, LLC, Calabasas, CA, has been assigned a patent (9,400,749) developed by Kuzmin, Andrey V., Woodland Hills, CA, Jadon, Mike, Manhattan Beach, CA, and Mathews, Richard M., Porter Ranch, CA, for a “host interleaved erase operations for flash memory controller.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “This disclosure provides for host-controller cooperation in managing NAND flash memory. The controller maintains information for each erase unit which tracks memory usage. This information assists the host in making decisions about specific operations, for example, initiating garbage collection, space reclamation, wear leveling or other operations. For example, metadata can be provided to the host identifying whether each page of an erase unit has been released, and the host can specifically then command each of consolidation and erase using direct addressing. By redefining host-controller responsibilities in this manner, much of the overhead association with FTL functions can be substantially removed from the memory controller, with the host directly specifying physical addresses. This reduces performance unpredictability and overhead, thereby facilitating integration of solid state drives, (SSDs) with other forms of storage. The disclosed techniques are especially useful for direct-attached and/or network-attached storage.“

The patent application was filed on January 28, 2016 (15/009,275).