发明公开
- 专利标题: Dielectric recording apparatus, dielectric reproducing apparatus, and dielectric recording / reproducing apparatus
- 专利标题(中): 介电记录装置电介质再现装置和介电记录/重放装置
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申请号: EP03019679.4申请日: 2003-09-09
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公开(公告)号: EP1398780A2公开(公告)日: 2004-03-17
- 发明人: Onoe, Atsushi, c/o Pioneer Corp.,
- 申请人: Cho, Yasuo , Pioneer Corporation
- 申请人地址: 4-5-304, Komegafukuro 2-chome, Aoba-ku Sendai-shi, Miyagi-ken JP
- 专利权人: Cho, Yasuo,Pioneer Corporation
- 当前专利权人: Cho, Yasuo,Pioneer Corporation
- 当前专利权人地址: 4-5-304, Komegafukuro 2-chome, Aoba-ku Sendai-shi, Miyagi-ken JP
- 代理机构: Barth, Stephan Manuel, Dr.
- 优先权: JP2002265930 20020911
- 主分类号: G11B9/00
- IPC分类号: G11B9/00 ; G11B9/02 ; G11B11/08
摘要:
A dielectric recording / reproducing apparatus (3) is provided with: a probe (11) for applying an electric field to a dielectric material (17); a return electrode (12) for returning the high frequency electric field for data reproduction; an inductor (L) placed between the probe and the return electrode; an oscillator (13) 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 (30) for switching circuit connections depending on whether data recording is performed and data reproducing is performed; a recording signal input device (31) for converting data to be recorded to generate a recording signal; a direct current voltage generation device (32) for generating a direct current bias voltage to be applied to the dielectric material; a frequency-amplitude demodulator (33) 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 (34) for detecting data from the demodulated signal.
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