High-rate transition control code for magnetic recording channels

An apparatus, comprising:

• a data converter circuit configured to convert raw channel data from a received communication signal into a sequence of transition code symbols, each transition code symbol having a plurality of bits, each bit having a position within the respective transition code symbol;
• a plurality of bins, each bin corresponding to the position of the respective bit within the symbol and each bin configured to receive one bit of each transition code symbol;
• and
• a control block configured to flip every bit within each bin having a number of transitions greater than a number of non-transitions and to generate an identifier of every bin for which every bit was flipped.

An apparatus, comprising:

• a data converter circuit configured to convert raw channel data from a received communication signal into a sequence of transition code symbols, each transition code symbol having a plurality of bits, each bit having a position within the respective transition code symbol and each bit representing a transition or a non-transition within the raw channel data;
• a plurality of bins, each bin corresponding to the position of the respective bit within the symbol and each bin configured to receive one bit of each transition code symbol;
• a counter configured to count a number of transitions within each bin;
• and
• a control block coupled to the counter and configured to flip every bit within each bin having a number of transitions greater than 50% of the bits within the respective bin and to generate an identifier of every bin for which every bit was flipped.