Hilbert filter for double-layer perpendicular recording media

H. Muraoka; M. Hassner; Y. Sonobe; H. Nemoto; S. Yamamoto; D. Berman; A. Rossi; Y. Nakamura

doi:10.1109/INTMAG.2002.1001446

Hilbert filter for double-layer perpendicular recording media

H. Muraoka, M. Hassner, Y. Sonobe, H. Nemoto, S. Yamamoto, D. Berman, A. Rossi, Y. Nakamura

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Readback waveforms from GMR heads in perpendicular magnetic recording are completely different from the regular longitudinal recording waveforms. Proper signal equalization is therefore critical. For this purpose a Hilbert filter is discussed. This filter is known to transform the dipulse response from a single layer perpendicular media into a longitudinal signal, however, for double layer perpendicular media with a soft magnetic underlayer its properties have not been reported yet. In this paper the authors discuss the performance of the Hilbert filter for double-layer perpendicular recording media.

Original language	English
Title of host publication	INTERMAG Europe 2002 - IEEE International Magnetics Conference
Editors	J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	0780373650, 9780780373655
DOIs	https://doi.org/10.1109/INTMAG.2002.1001446
Publication status	Published - 2002
Externally published	Yes
Event	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands Duration: 2002 Apr 28 → 2002 May 2

Publication series

Name	INTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country/Territory	Netherlands
City	Amsterdam
Period	02/4/28 → 02/5/2

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Surfaces, Coatings and Films

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10.1109/INTMAG.2002.1001446

Cite this

Muraoka, H., Hassner, M., Sonobe, Y., Nemoto, H., Yamamoto, S., Berman, D., Rossi, A., & Nakamura, Y. (2002). Hilbert filter for double-layer perpendicular recording media. In J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, J. De Boeck, & R. Wood (Eds.), INTERMAG Europe 2002 - IEEE International Magnetics Conference [1001446] (INTERMAG Europe 2002 - IEEE International Magnetics Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2002.1001446

Hilbert filter for double-layer perpendicular recording media. / Muraoka, H.; Hassner, M.; Sonobe, Y. et al.

INTERMAG Europe 2002 - IEEE International Magnetics Conference. ed. / J. Fidler; B. Hillebrands; C. Ross; D. Weller; L. Folks; E. Hill; M. Vazquez Villalabeitia; J. A. Bain; Jo De Boeck; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. 1001446 (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Muraoka, H, Hassner, M, Sonobe, Y, Nemoto, H, Yamamoto, S, Berman, D, Rossi, A & Nakamura, Y 2002, Hilbert filter for double-layer perpendicular recording media. in J Fidler, B Hillebrands, C Ross, D Weller, L Folks, E Hill, M Vazquez Villalabeitia, JA Bain, J De Boeck & R Wood (eds), INTERMAG Europe 2002 - IEEE International Magnetics Conference., 1001446, INTERMAG Europe 2002 - IEEE International Magnetics Conference, Institute of Electrical and Electronics Engineers Inc., 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002, Amsterdam, Netherlands, 02/4/28. https://doi.org/10.1109/INTMAG.2002.1001446

Muraoka H, Hassner M, Sonobe Y, Nemoto H, Yamamoto S, Berman D et al. Hilbert filter for double-layer perpendicular recording media. In Fidler J, Hillebrands B, Ross C, Weller D, Folks L, Hill E, Vazquez Villalabeitia M, Bain JA, De Boeck J, Wood R, editors, INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc. 2002. 1001446. (INTERMAG Europe 2002 - IEEE International Magnetics Conference). doi: 10.1109/INTMAG.2002.1001446

Muraoka, H. ; Hassner, M. ; Sonobe, Y. et al. / Hilbert filter for double-layer perpendicular recording media. INTERMAG Europe 2002 - IEEE International Magnetics Conference. editor / J. Fidler ; B. Hillebrands ; C. Ross ; D. Weller ; L. Folks ; E. Hill ; M. Vazquez Villalabeitia ; J. A. Bain ; Jo De Boeck ; R. Wood. Institute of Electrical and Electronics Engineers Inc., 2002. (INTERMAG Europe 2002 - IEEE International Magnetics Conference).

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AB - Readback waveforms from GMR heads in perpendicular magnetic recording are completely different from the regular longitudinal recording waveforms. Proper signal equalization is therefore critical. For this purpose a Hilbert filter is discussed. This filter is known to transform the dipulse response from a single layer perpendicular media into a longitudinal signal, however, for double layer perpendicular media with a soft magnetic underlayer its properties have not been reported yet. In this paper the authors discuss the performance of the Hilbert filter for double-layer perpendicular recording media.

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Hilbert filter for double-layer perpendicular recording media

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