发明名称 |
Magnetic recording and reproducing methods as well as magnetic recording and reproducing apparatus |
摘要 |
<p>A digital signal to be recorded is converted into a digital signal having a suppressed low-frequency spectrum and having a shortest recording wavelength greater than half an original shortest recording wavelength, and the converted digital signal is recorded on a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated. The digital signal is reproduced from the magnetic recording medium in which the plurality of metal evaporated films having different crystal-growth directions are laminated. Waveform equalization is performed on the reproduced digital signal, and integration detection is performed on the waveform-equalized digital signal, thereby restoring an original digital signal. <IMAGE></p> |
申请公布号 |
EP0498421(B1) |
申请公布日期 |
1997.05.02 |
申请号 |
EP19920101987 |
申请日期 |
1992.02.06 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
GOHDA, MAKOTO;YAMASHITA, SHINICHI;TANAKA, YASUYUKI |
分类号 |
G11B5/09;G11B5/66;G11B5/85;G11B20/10;(IPC1-7):G11B5/09;G11B5/68 |
主分类号 |
G11B5/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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