System and method for detecting data stored in multi-bit memory cells

摘要

A control module for a memory system including a plurality of multi-bit memory cells. The control module includes a read module configured to receive, from a first storage region of a first memory cell of the plurality of multi-bit memory cells, a first signal, and generate a second signal based on the first signal. A signal detection module is configured to determine distances between the second signal and respective estimates of a plurality of noiseless signals associated with the first memory cell. The noiseless signals correspond to a combination of an ideal signal and an interference signal. The signal detection module is further configured to determine, from the estimates of the plurality of noiseless signals, a noiseless signal that matches most closely to the second signal. A data conversion module is configured to detect data stored in the first storage region based on the noiseless signal that matches most closely to the second signal.

主权项

1. A control module for a memory system including a plurality of multi-bit memory cells, the control module comprising:
a read module configured to (i) receive, from a first storage region of a first memory cell of the plurality of multi-bit memory cells, a first signal, and (ii) generate a second signal based on the first signal; a signal detection module configured to
determine distances between (i) the second signal and (ii) respective estimates of a plurality of noiseless signals associated with the first memory cell, wherein each of the noiseless signals corresponds to a combination of an ideal signal and an interference signal, wherein the ideal signal does not include noise or interference, and wherein the interference signal corresponds to interference caused by other regions of the first memory cell, anddetermine, from the estimates of the plurality of noiseless signals, a noiseless signal that matches most closely to the second signal; and a data conversion module configured to detect data stored in the first storage region based on the noiseless signal that matches most closely to the second signal.