发明名称 |
Dielectric recording apparatus, dielectric reproducing apparatus, and dielectric recording / reproducing apparatus |
摘要 |
A dielectric recording/reproducing apparatus is provided with: a probe for applying an electric field to a dielectric material; a return electrode for returning the high frequency electric field for data reproduction; an inductor placed between the probe and the return electrode; an oscillator which oscillates at a resonance frequency determined according to the inductor and a capacitance formed in the dielectric material just under the probe; a switch for switching circuit connections depending on whether data recording is performed and data reproducing is performed; a recording signal input device for converting data to be recorded to generate a recording signal; a direct current voltage generation device for generating a direct current bias voltage to be applied to the dielectric material; a frequency-amplitude demodulator for demodulating an oscillation signal of the oscillator having the frequency that is changed depending on the capacitance owned by the dielectric material just under the probe; and a signal detector for detecting data from the demodulated signal.
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申请公布号 |
US2004090903(A1) |
申请公布日期 |
2004.05.13 |
申请号 |
US20030657715 |
申请日期 |
2003.09.09 |
申请人 |
YASUO CHO AND PIONEER CORPORATION |
发明人 |
CHO YASUO;ONOE ATSUSHI |
分类号 |
G01Q60/00;G01Q60/46;G01Q80/00;G11B9/00;G11B9/02;G11B9/06;G11B9/14;G11B11/08;(IPC1-7):G11B9/00 |
主分类号 |
G01Q60/00 |
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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