14076579

Paragraph Number

132

The difference between the read ratio of binary ones and binary zeroes of an ECC chunk and the expected or known ratio may provide the adjustment module 306 a direction or drift For example, read or write disturb errors may cause a read ECC chunk to exhibit a greater number of binary ones than expected (e.g., a balance shift to the right) while retention errors may cause a read ECC chunk to exhibit a greater number of binary zeroes than expected (e.g., a balance shift to the left). Adjusting media parameters to restore the balance of the ECC chunk may, in a further embodiment, reduce the number of errors in additional ECC chunks storing additional data, if the at least one ECC chunk and the additional ECC chunk are susceptible to the same types of errors.

Added by DJM 2 2021