Patent 7047361 Issued on May 16, 2006. Estimated Expiration Date: August 4, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
711/115, Detachable memory361/72, With lockout means700/94, Digital audio data processing system714/43Bus, I/O channel, or network path component fault
A data storage device using SDRAM as data storage unit is disclosed. The data storage device of the present invention comprises a SDRAM controller is used to control one or more than one SDRAM. According to an aspect of the present invention, a plurality of SDRAM is stacked over each other to form stacked SDRAM structure for increasing the storage capacity. The data storage device of the present invention is capable of continuously and accurately storing and retrieving data, and it is highly resistant to vibrations. Further, the data storage device of the present invention is capable of reducing the manufacturing and maintenance cost.