Codes for Digital Recorders
Kees A. Schouhamer Immink, Paul H. Siegel, and Jack K. Wolf
ABSTRACT
This paper reviews the theory and application of constrained modulation
codes, particularly as used in digital data recording applications. In
keeping with the theme of this special issue, we will highlight the
pioneering contributions to this area made by Shannon in his landmark
1948 paper, the evolution and progress made during the subsequent 50
years, and the critical role played by these codes in todays world of
electronics. Open problems and possible future directions are also
addressed. We will also touch upon some of Shannon's comments about
cross-word puzzles that are relevant to coding for exploratory
multi-dimensional storage technologies such as holographic recording.
Key Words: digital recorders, constrained code, recording code,
run-length-limited, survey
Last updated: 5-Jan-1998