Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment

R. Haeb-Umbach, D. Rugar, T. Howell, G.P. Coleman, in: International Conference on Communication, Atlanta, 1990.

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Abstract
The resonant bias coil technique requires even-numbered transitions to be written on even-numbered clock cycles, and odd-numbered transitions on odd-numbered clock cycles. This constraint is met by double-spaced run-length-limited (d, k, 2) codes where the number of consecutive zeros is even. Exploiting the polarity of the transitions, a detection window that has double the size of the code bit period is possible. The authors describe a detection circuit that achieves the enlarged detection window, and present a phase detector which is particularly simple to implement. Channel bit-error-rate measurements have been carried out employing a rate 1/3 (2, 8, 2) code. Error rates of 10/sup -8/ were achieved for recording densities up to 33 kb/in. The results demonstrate the expected excellent immunity of the direct overwrite scheme to bloom.
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International Conference on Communication, Atlanta
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Haeb-Umbach R, Rugar D, Howell T, Coleman GP. Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment. In: International Conference on Communication, Atlanta. ; 1990.
Haeb-Umbach, R., Rugar, D., Howell, T., & Coleman, G. P. (1990). Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment. In International Conference on Communication, Atlanta.
@inproceedings{Haeb-Umbach_Rugar_Howell_Coleman_1990, title={Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment}, booktitle={International Conference on Communication, Atlanta}, author={Haeb-Umbach, Reinhold and Rugar, D. and Howell, T. and Coleman, G. P.}, year={1990} }
Haeb-Umbach, Reinhold, D. Rugar, T. Howell, and G. P. Coleman. “Coding and Signal Processing for a Magneto-Optic Resonant Bias Coil Overwrite Experiment.” In International Conference on Communication, Atlanta, 1990.
R. Haeb-Umbach, D. Rugar, T. Howell, and G. P. Coleman, “Coding and Signal Processing for a Magneto-optic Resonant Bias Coil Overwrite Experiment,” in International Conference on Communication, Atlanta, 1990.
Haeb-Umbach, Reinhold, et al. “Coding and Signal Processing for a Magneto-Optic Resonant Bias Coil Overwrite Experiment.” International Conference on Communication, Atlanta, 1990.

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