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

Claim 18:
19. The method as claimed in claim 15, wherein the determining whether the first read voltage is registered at the history table includes:
when it is determined that the first read voltage is not registered at the history table, performing a second DMA read operation based on a default read voltage;
determining whether third raw data read by the second DMA read operation include an uncorrectable error;
when it is determined that the third raw data include the uncorrectable error, performing a third read retry operation based on a third read retry voltage;
determining whether fourth raw data read by the third read retry operation include an uncorrectable error;
when it is determined that the uncorrectable error is absent from the fourth raw data, updating the history table such that the third read retry voltage is set as the first read voltage; and
when it is determined that the fourth raw data include the uncorrectable error, performing a fourth read retry operation based on a fourth read retry voltage.