A Study of Asymmetry Compensation for Partial-Response Maximum-Likelihood Detection in Optical Recording Media

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概要

• 論文の詳細を見る

• The partial-response maximum-likelihood (PRML) detection technique is effective for high-density recording media. In the field of magnetooptical recording media, it is mainly adopted in a magnetic field modulation recording system. For a light intensity modulation (LIM) recording system, however, signal asymmetry caused by the deviation from the optimum recording conditions easily deteriorates the PRML detection procedure. In this paper, we propose an "adaptive reference level technique", which can greatly improve the write power tolerance. It is expected to suppress the influence of the signal asymmetry in the LIM recording system.

• Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
• 1998-04-30

著者

• Kagawa Masaki

  Research & Development Department Recording Media & Energy Company Sony Corporation

• Abiko Toru

  Research & Development Department Recording Media & Energy Company Sony Corporation

• Abiko Toru

  Research & Development Department, Recording Media & Energy Company, SONY Corporation,

• Igarashi Shuichi

  Research & Development Department, Recording Media & Energy Company, SONY Corporation,

• Nakano Jun

  Research & Development Department, Recording Media & Energy Company, SONY Corporation,

• Nakano Jun

  Research & Development Department, Recording Media & Energy Company, SONY Corporation,

関連論文

• Thermal Response Design for High Recording Density Magnetooptical Media
• Design Concept of Magneto-Optical Disk : MAGNETO-OPTICAL MEDIA III
• A Study of Asymmetry Compensation for Partial-Response Maximum-Likelihood Detection in Optical Recording Media

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