Magnetic recording and reproducing method and apparatus with vertical magnetization component reduction

A magnetic reproducing method comprising the steps of:

• reproducing a digital signal from a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated, wherein magnetization components of the plurality of metal evaporated films of said magnetic recording medium in a vertical direction relative to a surface thereof are substantially zero in total;
• performing waveform equalization on the reproduced digital signal;
• and
• performing integration detection on the waveform-equalized digital signal to restore an original digital signal.

A magnetic recording and reproducing method comprising the steps of:

• converting a digital signal to be recorded into a digital signal having a suppressed low-frequency spectrum;
• recording the converted digital signal on a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated, wherein magnetization components of the plurality of metal evaporated films of said magnetic recording medium in a vertical direction relative to a surface thereof are substantially zero in total;
• reproducing the digital signal from the magnetic recording medium;
• performing waveform equalization on the reproduced digital signal;
• and
• performing integration detection on the waveform-equalized digital signal to restore an original digital signal.

A magnetic recording apparatus comprising:

• (a) inputting means for receiving a digital signal as its input;
• (b) converting means for converting the digital signal inputted from said inputting means into a digital signal having a suppressed low-frequency spectrum;
• and
• (c) recording means for recording the digital signal outputted from said converting means on a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated, wherein magnetization components of the plurality of metal evaporated films of said magnetic recording medium in a vertical direction relative to a surface thereof are substantially zero in total.

A magnetic reproducing apparatus comprising:

• (a) reproducing means for reproducing a digital signal from a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated, wherein magnetization components of the plurality of metal evaporated films of said magnetic recording medium in a vertical direction relative to a surface thereof are substantially zero in total;
• (b) waveform equalization means for performing waveform equalization on the reproduced digital signal;
• and
• (c) integration detection means for performing integration detection on the waveform-equalized digital signal to restore an original digital signal.

A magnetic recording and reproducing apparatus comprising:

• (a) inputting means for receiving a digital signal as its input;
• (b) converting means for converting the digital signal inputted from said inputting means into a digital signal having a suppressed low-frequency spectrum;
• (c) recording means for recording the digital signal outputted from said converting means on a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated, wherein magnetization components of the plurality of metal evaporated films of said magnetic recording medium in a vertical direction relative to a surface thereof are substantially zero in total;
• (d) reproducing means for reproducing the digital signal from the magnetic recording medium;
• (e) waveform equalization means for performing waveform equalization on the reproduced digital signal;
• and
• (f) integration detection means for performing integration detection on the waveform-equalized digital signal to restore an original digital signal.