Patent ID: 11934701
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A method of operating a storage device which includes a non-volatile memory device and a storage controller, the method comprising:
providing, by the storage controller, a first command including an on-chip valley search (OVS) read request for a memory region of the non-volatile memory device to the non-volatile memory device;
generating, by the non-volatile memory device, OVS count data of the memory region based on the first command;
providing, by the storage controller, a second command including a request for the OVS count data to the non-volatile memory device;
providing, by the non-volatile memory device, the OVS count data to the storage controller based on the second command;
determining, by the storage controller, a distribution type of the memory region to be a predicted distribution type, from among a plurality of distribution types, based on the OVS count data; and
determining, by the storage controller, a subsequent operation based on the predicted distribution type.