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US 8,286,053 B2Granted
Method and apparatus for reading data
AssigneeFujitsu Limited
InventorTakahito Hirano
Life of this patent
Estimating the term…
Abstract
A reading apparatus reads data from a storage device based on which an error correcting code is to be generated. An error determining unit reads the data from the storage device, and determines whether a read error has occurred in the data. A reading unit re-reads, when the error determining unit determines that a read error has occurred in the data, the same data from the storage device.
Claims9
A reading apparatus comprising:
- an error determining unit that reads second data from a storage device based on which an error correcting code is to be generated, and determines whether a read error has occurred in the second data when a first area of the storage device includes first data and the second data, and the first data is updated while the second data is not updated;
- a reading unit that re-reads, when the error determining unit determines that a read error has occurred in the second data, the second data from the storage device;
- and
- a correcting-code generating unit that generates the error correcting code based on the first data and the second data that is re-read by the reading unit.
1 more element
A reading method, comprising:
- reading second data from a storage device based on which an error correcting code is to be generated when a first area of the storage device includes first data and the second data, and the first data is updated while the second data is not updated;
- determining whether a read error has occurred in the second data;
- re-reading, when the determining indicates that a read error has occurred in the second data, the second data from the storage device;
- and
- generating the error correcting code based on the first data and the second data that is re-read at the re-reading.
2 more elements
Dependencies are inferred from the claim text.