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Decoding of digital magnetic recording with longitudinal magnetization of a tape from a magneto-optical image of stray fields

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Abstract

For digital magnetic recording of encoded information with longitudinal magnetization of the tape, the connection between the domain structure of a storage medium and magneto-optical image of its stray fields obtained using a magnetic film with a perpendicular anisotropy and a large Faraday rotation has been studied. For two-frequency binary code without returning to zero, an algorithm is developed, that allows uniquely decoding of the information recorded on the tape based on analysis of an image of stray fields.

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Authors and Affiliations

  1. Fryazino Branch, Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Fryazino, Moscow oblast, 141190, Russia

    F. V. Lisovskii & E. G. Mansvetova

Authors
  1. F. V. Lisovskii
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  2. E. G. Mansvetova
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Corresponding author

Correspondence to F. V. Lisovskii.

Additional information

Original Russian Text © F.V. Lisovskii, E.G. Mansvetova, 2017, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2017, Vol. 43, No. 9, pp. 43–51.

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Lisovskii, F.V., Mansvetova, E.G. Decoding of digital magnetic recording with longitudinal magnetization of a tape from a magneto-optical image of stray fields. Tech. Phys. Lett. 43, 431–434 (2017). https://doi.org/10.1134/S1063785017050066

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  • DOI: https://doi.org/10.1134/S1063785017050066

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