发明公开
- 专利标题: Dielectric reproducing apparatus, dielectric recording apparatus, and dielectric recording / reproducing apparatus
- 专利标题(中): 一种电介质重放装置中,介电记录装置和介电记录/重放装置
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申请号: EP03019678.6申请日: 2003-09-09
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公开(公告)号: EP1398779A2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: JP2002265925 20020911; JP2003311829 20030903
- 主分类号: G11B9/00
- IPC分类号: G11B9/00 ; G11B9/02 ; G11B11/08
摘要:
A dielectric reproducing apparatus (1) is provided with: a probe (11) for applying an electric field to a dielectric material (17) of a dielectric recording medium (20); a return electrode (12) for returning the electric field applied from the probe; an inductor (L) placed between the probe and the return electrode; an oscillator (13) which oscillates at a resonance frequency determined from the inductor and a capacitance (Cs) formed in the dielectric material just under the probe; an alternating current (AC) signal generation device (32) for generating an AC signal which is applied to the probe; a frequency modulation (FM) demodulator (33) for demodulating a FM modulation signal modulated by the capacitance corresponding to the polarization state owned by the dielectric material just under the probe; and a phase-shift keying (PSK) demodulator (34) for reproducing data from the demodulated signal.
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