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US 10,503,436 B2Granted
Storage device and method of operating the same
AssigneeSK hynix Inc.
InventorsJin Soo Kim, Soong Sun Shin
Life of this patent
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Abstract
Provided herein may be a storage device and a method of operating the same. A storage device for protecting the storage device from physical movement may include a nonvolatile memory device, a sensor unit configured to collect information about physical movement of the storage device, and a memory controller configured to perform a device lock operation of protecting data in the nonvolatile memory device, based on a sensor value acquired from the sensor unit.
Claims20
A storage device, comprising:
- a nonvolatile memory device;
- a sensor unit configured to collect information about physical movement of the storage device;
- and
- a memory controller configured to perform a device lock operation of protecting data in the nonvolatile memory device based on a sensor value acquired from the sensor unit;
- wherein the memory controller performs a flush operation to store data temporarily stored in a write cache buffer included in the memory controller to the nonvolatile memory device when the device lock operation is performed, and
- wherein the memory controller includes a register having a value changed according to an enabled status of the device lock operation indicating whether the device lock operation is activated.
3 more elements
A memory controller for controlling a memory device, comprising:
- a device lock detection unit configured to output a detection signal when a sensor value related to a physical movement of a storage device, acquired from an external sensor unit, exceeds a threshold;
- a device lock mode setting unit configured to lock the storage device and output an enable signal indicating that the storage device is in locked status when a device lock mode, indicating whether a device lock operation of protecting data in the memory device is activated, is in enabled status, and the detection signal is inputted;
- and
- a device lock processing unit configured to output an abort signal to an external host without executing a command provided from the external host, in response to the enable signal and to perform a flush operation to store data temporarily stored in a write cache buffer included in the memory controller to the memory device in response to the enable signal,
- wherein the device lock mode setting unit includes a register having a value changed according to an enabled status of the device lock operation indicating whether the device lock operation is activated.
2 more elements
Dependencies are inferred from the claim text.