Patent ID: 8209588
Filing Date: 2012-06-26
Classification: G06F,G11C

Abstract:
1. A method for operating a memory that includes analog memory cells, the method comprising: storing data in a group of the analog memory cells by writing respective first storage values to the memory cells in the group; after storing the data, reading respective second storage values from the memory cells in the group using one or more first read thresholds; identifying third storage values that potentially cause cross-coupling interference in the second storage values, and processing the third storage values so as to identify a subset of the second storage values as severely-interfered storage values; selectively re-reading respective fourth storage values from the memory cells holding the severely-interfered storage values using one or more second read thresholds, different from the first read thresholds; canceling the cross-coupling interference in the severely-interfered storage values using the re-read fourth storage values; and processing the second storage values, including the severely-interfered storage values in which the cross-coupling interference has been canceled, so as to reconstruct the data stored in the group of the memory cells.