Back to results
US 7,353,324 B2Granted
Semiconductor storage device and method of controlling the same
AssigneeKabushiki Kaisha Toshiba
InventorYoshiyuki Tanaka
Life of this patent
Estimating the term…
Abstract
A semiconductor storage device includes a first nonvolatile memory to store user data of a file, a second nonvolatile memory to store management data of the file, the second nonvolatile memory being different in type from the first nonvolatile memory, and a controller to control read/write of data with respect to the first and second nonvolatile memories.
Claims6
A semiconductor storage device comprising:
- a first nonvolatile memory to store user data of a file;
- a second nonvolatile memory to store management data of the file, the second nonvolatile memory being different in type from the first nonvolatile memory;
- a controller to control read/write of data with respect to the first and second nonvolatile memories;
- and
- a conversion unit to perform data conversion to write data in the second nonvolatile memory with a bit width smaller than that of data outputted from the first nonvolatile memory, when data is transferred from the first nonvolatile memory to the second nonvolatile memory.
2 more elements
A method of controlling a semiconductor storage device including a first nonvolatile memory and a second nonvolatile memory different in type from the first nonvolatile memory, comprising:
- determining whether data requested to be written corresponds to management data of a file or user data;
- writing data into the second nonvolatile memory, when data corresponds to the management data;
- writing data into the first nonvolatile memory, when data corresponds to the user data;
- and
- performing data conversion to write data in the second nonvolatile memory with a bit width smaller than that of data outputted from the first nonvolatile memory, when data is transferred from the first nonvolatile memory to the second nonvolatile memory.
2 more elements
Dependencies are inferred from the claim text.