Patent 7136973 was granted and assigned to SanDisk on November, 2006 by the United States Patent and Trademark Office.
A dual media storage device is provided. Two separate non-volatile mass storage devices, one having a faster access time and a lower capacity than the other, are combined into a single system. A storage controller can direct the flow of data into one device or the other, depending upon various conditions, which might include one mass storage device being unavailable or for certain caching schemes.