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arXiv · 1506.00573

Two-dimensional Decoding Algorithms and Recording Techniques for Bit Patterned Media Feasibility Demonstrations

Yuri Obukhov·Pierre-Olivier Jubert·Daniel Bedau·Michael Grobis
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Abstract

Recording experiments and decoding algorithms are presented for evaluating the bit-error-rate of state-of-the-art magnetic bitpatterned media. The recording experiments are performed with a static tester and conventional hard-disk-drive heads. As the reader dimensions are larger than the bit dimensions in both the down-track and the cross-track directions, a two-dimensional bit decoding algorithm is required. Two such algorithms are presented in details together with the methodology implemented to accurately retrieve island positions during recording. Using these techniques, a 1.6 Td/in$^2$ magnetic bit pattern media is demonstrated to support 2D bit error rates below 1e-2 under shingled magnetic recording conditions.

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Yuri Obukhov, Pierre-Olivier Jubert, Daniel Bedau, Michael Grobis. 2015-06-01. Two-dimensional Decoding Algorithms and Recording Techniques for Bit Patterned Media Feasibility Demonstrations. https://doi.org/10.1109/tmag.2015.2492475

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