Patent ID: 11868646
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A data storage device, comprising:
a memory device; and
a controller coupled to the memory device, the controller configured to:
determine a first read threshold for a first page;
adjust voltage level of the first read threshold;
determine an adjusted first read threshold at the adjusted voltage level of the first read threshold, wherein the adjusted first read threshold is different from the first read threshold;
compare the adjusted first read threshold to the first read threshold, wherein comparing the adjusted first read threshold to the first read threshold comprises:
determining a bit error rate (BER) of the first page at the first read threshold;
determining an adjusted BER of a second page at the adjusted first read threshold, wherein the second pane is adjacent to the first page; and
determining that the adjusted BER of the second page is greater than or equal to the BER of the first page; and

calibrate the first read threshold of the first page responsive to determining that the adjusted BER of the second page is greater than or equal to the BER of the first page.