Technique for reducing effects of pulse crowding in magnetic recording

The introduction of redundant magnetic transition pairs in data cells, normally encoded with absent transitions, counteracts the effects of pulse crowding. Such pulse crowding is generally encountered in conventional saturation type magnetic recording. The resulting restored waveform is in fair agreement with the synthesized waveform based upon pulse superposition. The technique may be applied to most commonly used recording schemes, thereby realizing increased bit density or greater head-to-medium separation.