Patent ID: 11861209
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. A method of operating a memory system, the method comprising:
generating and storing an address map table by mapping physical addresses for regions in which data is to be programmed to logical addresses during a program operation;
programming the data in a selected page of a memory block selected according to the physical addresses;
reading a plurality of chunks of the selected page and performing an error correction operation on each chunk of the plurality of read chunks, in response to detecting that a read operation of the selected page is performed; and
in response to detecting that an error correction operation on a first chunk of the plurality of chunks has failed:
checking whether a logical address was included in first meta data stored in the first chunk;
detecting the logical address mapped to a physical address of the first chunk in the address map table, in response to detecting that the logical address was included in the first meta data stored in the first chunk; and
recovering meta data for the data programmed in the selected page by combining the detected logical address with remaining meta data stored in a second chunk of the plurality of chunks in response to detecting that an error correction operation on the second chunk has passed.