Dynamic information storage or retrieval – Specific detail of information handling portion of system – Electrical modification or sensing of storage medium
Patent
1993-03-10
1996-01-02
Epps, Georgia Y.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Electrical modification or sensing of storage medium
369 13, 365117, 365145, 250306, G11B 900, G11C 1122
Patent
active
054815274
ABSTRACT:
In an information processing apparatus which records and reproduces information by rotating a cylindrical recording medium on the basis of the principles of a scanning type tunnel microscope, the speed of the probe relative to that of the recording medium becomes fixed, and resonance and a decrease in an S/N ratio of reproduced signals during high-speed scanning can be prevented. Thus, information processing at a large capacity and high-speed response with a high degree of accuracy is made possible. An information processing system that records and reproduces information on the basis of the principles of a scanning type tunneling or an atomic force microscope employs a ferroelectric layer in the recording medium to simplify and improve reproduction. The recording medium may include a rotating cylindrical medium wherein the speed of the probe is fixed relative to that of the cylindrical medium to prevent resonance and to decrease the signal-to-noise ratio of reproduced signals during high speed scanning. Large capacity, accurate and high speed information processing is thereby obtained.
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Kasanuki Yuji
Kawada Haruki
Yanagisawa Yoshihiro
Canon Kabushiki Kaisha
Chu Kim-Kwok
Epps Georgia Y.
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