Nonvolatile memory and card reader provided with the same
AssigneeNidec Sankyo Corporation
InventorTsutomu Baba
Life of this patent
Estimating the term…
Abstract
A nonvolatile memory may include a plurality of blocks as a unit for performing writing and erasing of data which is stored in the respective blocks. The block may include a write data area in which data is written and stored, a correlative code area in which a correlative code indicating a correlation between the data which are written in the respective write data areas of the respective blocks is stored, and an inspection data area in which inspection data required in inspection is stored in the respective blocks for inspecting the validity of the data.
Claims5
A nonvolatile memory comprising:
- a plurality of blocks as a unit for performing writing and erasing data which is stored in the respective blocks, the blocks comprising;
- a write data area in which data is written and stored;
- a correlative code area in which a correlative code indicating a correlation between the data which are written in the respective write data areas of the respective blocks is stored;
- and
- an inspection data area in which inspection data required in inspection is stored in the respective blocks for inspecting validity of the data.
A card reader comprising:
- means for reading a card;
- a nonvolatile memory comprising:
- a plurality of blocks as a unit for performing writing and erasing data which is stored in the respective blocks, the blocks comprising;
- a write data area in which data is written and stored;
- a correlative code area in which a correlative code indicating a correlation between the data which are written in the respective write data areas of the respective blocks is stored;
- and
- an inspection data area in which inspection data required in inspection is stored in the respective blocks for inspecting validity of the data.
A method for improving a nonvolatile memory comprising:
- providing a plurality of blocks as a unit for performing writing and erasing data which is stored in the respective blocks comprising;
- writing data in a write data area in which data is written and stored;
- providing a correlative code area in which a correlative code indicating a correlation between the data which are written in the respective write data areas of the respective blocks is stored;
- and
- providing an inspection data area in which inspection data required in inspection is stored in the respective blocks for inspecting validity of the data.
Dependencies are inferred from the claim text.