Partial-response coding, maximum-likelihood decoding: capitalizing on the analogy between communication and recording [History of Communications]

  title={Partial-response coding, maximum-likelihood decoding: capitalizing on the analogy between communication and recording [History of Communications]},
  author={Hisashi Kobayashi},
  journal={IEEE Communications Magazine},
Signal processing and coding technology for digital magnetic recording is the core technology of the channel electronics module in a hard disk drive (HDD) that processes signals read from magnetic media. In this historical review I focus on what is now widely known as partial-response, maximum-likelihood (PRML) technology, which takes advantage of the inherent redundancy that exists in signals read out of magnetic media; its theoretical foundation goes back to 1970, and it capitalizes on the… CONTINUE READING


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