Patent ID: 7502254

Claim:
A method of reading information stored as a respective physical state of at least one cell of a memory, the method comprising the steps of: (a) setting each of at least one reference to a respective member of a first set of values; (b) reading the respective physical state of each cell wherein the information is stored according to said first set of values; (c) subsequent to said reading of the respective physical state of each cell according to said first set of values: setting each of at least a portion of said at least one reference to a respective member of a second set of values; and (d) reading the respective physical state of each cell wherein the information is stored according to said second set of values; wherein at least one member of said second set is different from any member of said first set, so that said reading of the at least one physical state according to said first set and said reading of the at least one physical state according to said second set together read the at least one physical state with higher resolution than said reading of the at least one physical state according to said first set alone.