| abstract |
A recording device, comprising a probe electrode, a recording medium having electric memory effect and a writing voltage applying means for applying voltage onto the recording medium from said probe electrode, and a reproducing device comprising a probe electrode, a recording medium exhibiting electric memory effect or a recording medium recorded by energy irradiation, a voltage applying means for applying voltage not exceeding the threshold value voltage giving rise to electric memory effect onto the recording medium from said probe electrode and a reading means for reading the change in current quantity passing through said recording medium. |