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US 10,096,371 B2Granted
Data storage device and operating method thereof
AssigneeSK hynix Inc.
InventorJeen Park
Life of this patent
Estimating the term…
Abstract
A data storage device includes a nonvolatile memory device; a voltage detector suitable for detecting an operating voltage of the nonvolatile memory device; and a control unit suitable for making a first determination whether the operating voltage is dropped intentionally or unintentionally based on a first reference time and an elapsed time for which the operating voltage decreases from a first reference voltage to a second reference voltage.
Claims16
A data storage device comprising:
- a nonvolatile memory device;
- a voltage detector suitable for detecting an operating voltage of the nonvolatile memory device;
- and
- a control unit suitable for making a first determination whether the operating voltage is dropped intentionally or unintentionally based on a first reference time and an elapsed time for which the operating voltage decreases from a first reference voltage to a second reference voltage.
1 more element
A method for operating a data storage device which stores data in a nonvolatile memory device, the method comprising:
- determining whether an operating voltage of the nonvolatile memory device is dropped to be equal to or lower than a first reference voltage;
- determining, in the case where the operating voltage is dropped to be equal to or lower than the first reference voltage, whether the operating voltage is dropped to be equal to or lower than a second reference voltage;
- determining, in the case where the operating voltage exceeds the second reference voltage, whether an elapsed time for which the operating voltage is dropped from the first reference voltage to the second reference voltage is shorter than a first reference time;
- determining, in the case where the elapsed time is shorter than the first reference time, whether a holding time for which the operating voltage is held equal to or lower than the second reference voltage is longer than a second reference time;
- and
- determining, in the case where the holding time is longer than the second reference time, that the operating voltage is intentionally dropped.
3 more elements
Dependencies are inferred from the claim text.