发明公开
EP1398779A2 Dielectric reproducing apparatus, dielectric recording apparatus, and dielectric recording / reproducing apparatus 有权
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

Dielectric reproducing apparatus, dielectric recording apparatus, and dielectric recording / reproducing apparatus
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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