Memory system including a delegate page and method of identifying a status of a memory system
AssigneeSK hynix Inc.
InventorsDonggun Kim, Yong Ju Kim, Do Sun Hong
Life of this patent
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Abstract
A nonvolatile memory system may include a nonvolatile memory device, a delegate page attacker, and a health status analyzer. The nonvolatile memory device may include at least one memory block including a plurality of storage pages and a delegate page. The delegate page attacker may be configured to attack a bit of the delegate page at the same corresponding location as a bit of the storage page in which an error occurs. The health status analyzer may be configured to perform write and read operations for the delegate page and analyzes error information occurred in the write and read operations to determine whether the nonvolatile memory device is in a failure status.
Claims21
A nonvolatile memory system comprising:
- a nonvolatile memory device including at least one memory block including a plurality of storage pages and a delegate page;
- a delegate page attacker configured for attacking a bit of the delegate page at the same corresponding location as a bit of the storage page in which an error occurs;
- and
- a health status analyzer configured for performing write and read operations for the delegate page and analyzing error information occurred in the write and read operations to determine whether the nonvolatile memory device is in a failure status.
A method of identifying an overall health status of a nonvolatile memory system comprising:
- configuring at least one memory block of a nonvolatile memory device to include a plurality of storage pages and a delegate page;
- attacking a bit of the delegate page at the same corresponding location as a bit of the storage page in which an error occurs, when the error occurs in write and read operations for the storage page of the nonvolatile memory device;
- and
- identifying the overall health status of the nonvolatile memory device by performing write and read operations for the delegate page and analyzing error information generated in the write and read operations.
Dependencies are inferred from the claim text.