Enumerable Multitrack (d, k) Block Codes

Edward K. Orcutt, Michael W. Marcellin

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Multitrack run-length-limited (d, k) modulation codes were recently introduced as a method to increase storage densities in magnetic and optical recording systems. These codes are a generalization of the usual run-length-limited (d, k) codes and provide for increased storage density by relaxing the k-constraint and encoding multiple tracks in parallel. This paper introduces a method to construct multitrack (d, k) block codes which are implemented via an enumeration scheme based on the trellis description of the (d, k) constraints. This implementation results in memory requirements which increase only linearly with block length as opposed to the exponential increases arising from look-up table implementations of block codes.

Original languageEnglish (US)
Pages (from-to)1738-1744
Number of pages7
JournalIEEE Transactions on Information Theory
Issue number5
StatePublished - Sep 1993


  • (d,k) codes recording codes
  • Constrained channels
  • constrained codes

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences


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