Apparatus, system and method for protecting data

Abstract

An apparatus and corresponding method for protecting stored data. The apparatus includes a first encoder, a memory, a second encoder and a comparator. The first encoder is configured to generate first redundancy bits using a protection method to protect input data bits, whereas the input data bits are assigned to at least one of a plurality of classes. The memory is configured to store selectively inverted input data bits and/or selectively inverted first redundancy bits, whereas the selective inversion is based on the assigned at least one of the plurality of classes. The second encoder is configured to generate second redundancy bits using the protection method by encoding the selectively inverted input data bits. The comparator is configured to generate an alarm signal if the second redundancy bits are different from the first redundancy bits.

Dependencies are inferred from the claim text.