Patent ID: 11941293
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 16:
17. The method as claimed in claim 15, wherein the updating of the history table by changing the first read voltage of the history table to the second read voltage includes:
determining whether first raw data read by the first DMA read operation include an uncorrectable error;
when it is determined that the first raw data include the uncorrectable error, performing a first read retry operation based on a first read retry voltage;
determining whether second raw data read by the first read retry operation include an uncorrectable error;
when it is determined that the uncorrectable error is absent from the second raw data, updating the first read voltage of the history table with the first read retry voltage; and
when it is determined that the second raw data include the uncorrectable error, performing a second read retry operation based on a second read retry voltage.