发明名称 |
MAGNETISCHES AUFZEICHNUNGSMEDIUM |
摘要 |
A magnetic recording medium which has dynamic range (I) of 70 dB or more and dynamic range (II) of 45 dB or more in control of a thickness of a magnetic layer and magnetic characteristics wherein said dynamic range (I) is given as a difference between an output at 3% input level of third harmonic wave output at a wavelength of 237.5 mu m in the optimum bias recording by a head having a recorded width of 1 to 1.1 mm based on an output of the original signal and a reproduced output calibrated by auditory sense calibration at non-signal recording in the bias and said dynamic range (II) is given as a difference between a saturated output at a wavelength of 4.75 mu m under the same condition and the reproduced output calibrated by the A-curve calibration at non-signal recording in the bias. |
申请公布号 |
DE3211044(A1) |
申请公布日期 |
1982.10.07 |
申请号 |
DE19823211044 |
申请日期 |
1982.03.25 |
申请人 |
TDK ELECTRONICS CO.,LTD. |
发明人 |
HIRABAYASHI,KENJI;AZEGAMI,HITOSHI |
分类号 |
G11B5/70;G11B5/706;(IPC1-7):11B5/62 |
主分类号 |
G11B5/70 |
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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