Recording of multilevel run-length-limited modulation signals

Dennis G. Howe; Kuohua A. Wu

doi:10.1117/12.557006

9 September 2004 Recording of multilevel run-length-limited modulation signals

Dennis G. Howe, Kuohua A. Wu

Proceedings Volume 5380, Optical Data Storage 2004; (2004) https://doi.org/10.1117/12.557006
Event: Optical Data Storage Topical Meeting, 2004, Monterey, California, United States

Abstract

We discuss the use of pulse length modulated recording of run-length-limited sequences of p-ary digits p_i ε {0, 1,... p-1}; p≥3, to effect the physical representation of digital data on a storage medium that supports three or more distinct recording levels, or types of marks. p-ary run-length-limited modulation codes that facilitate the implementation of the modulation technique are also described. We also introduce a novel error correction coding technique that enables detecting/correcting errors in the values of the non-'zero' digits in the p-ary run-length limited sequence recovered from the storage medium.

Citation Download Citation

Dennis G. Howe and Kuohua A. Wu "Recording of multilevel run-length-limited modulation signals", Proc. SPIE 5380, Optical Data Storage 2004, (9 September 2004); https://doi.org/10.1117/12.557006

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