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

Claim 0:
1. A method of operating a storage controller which communicates with a non-volatile memory device, the method comprising:
outputting a first command including a request for on-chip valley search (OVS) count data of a memory region of the non-volatile memory device to the non-volatile memory device, wherein the OVS count data includes a first count value and a second count value of a first read voltage, and a third count value and a fourth count value of a second read voltage;
receiving the OVS count data from the non-volatile memory device;
determining 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 a subsequent operation, based on the predicted distribution type.