发明名称 Magnetic signal recording method and magnetic recording-reproduction apparatus
摘要 A magnetic signal recording method of the present invention superimposes a recording edge of a recordable region on a region where there is substantial equality between (a) a coercive force in a region on a magnetic recording medium in which the coercive force has been varied, and (b) magnetic field intensity, which is generated by a magnetic recording head. The magnetic field intensity has a magnetic field distribution whose lowering rate in an in-track position is maximum in the region. The magnetic recording head, whose recording magnetic field is distributed in a rectangular shape, is used in this way so as to form a magnetic bit having a rectangular shape that is suitable for reproduction performed by a common reproduction head having a rectangular reproduction region, thereby improving an S/N of a reproduction signal dramatically.
申请公布号 US6947236(B2) 申请公布日期 2005.09.20
申请号 US20010925907 申请日期 2001.08.09
申请人 SHARP KABUSHIKI KAISHA 发明人 HAMAMOTO MASAKI;KATAYAMA HIROYUKI;KOJIMA KUNIO;SATO JUNICHI;TAKAYAMA KAZUHISA;WATANABE KOSUKE
分类号 G11B11/10;G11B5/00;G11B5/02;G11B11/105;(IPC1-7):G11B5/02 主分类号 G11B11/10
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