Patent ID: 11972812
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The non-volatile storage apparatus of claim 1, wherein the control circuit is configured to identify the first set of memory cells connected to the common word line that have threshold voltages within the offset of the read compare voltage of a first data state by:
performing a first sensing operation to determine whether memory cells have respective threshold voltages above a lower voltage limit, the lower voltage limit is the read compare voltage for the first data state less the offset;
performing a second sensing operation to determine whether memory cells have respective threshold voltages below an upper voltage limit, the upper voltage limit is the read compare voltage for the first data state plus the offset; and
determining which memory cells have respective threshold voltages above the lower voltage limit and below the upper voltage limit.