Dynamic information storage or retrieval – Specific detail of information handling portion of system – Electrical modification or sensing of storage medium
Patent
1992-01-08
1994-02-15
Dzierzynski, Paul M.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Electrical modification or sensing of storage medium
369101, 365151, G11B 900
Patent
active
052873420
ABSTRACT:
An information reproducing apparatus includes a recording medium and a reproducing probe, and reproduces information from a signal between the recording medium and the probe. The apparatus further includes a unit for obtaining reproduced information from each of a plurality of data unit areas of the recording medium under different conditions. By obtaining a plurality of different kinds of information from scanning each recording region under the different conditions in a reproducing operation, it is possible to perform correction by discriminating a change in a tunnel current reflecting a recording bit from a tunnel current caused by projections and recesses of the surface and to remove a resulting error.
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Kishi Etsuro
Kuroda Ryo
Miyazaki Toshihiko
Oguchi Takahiro
Yamano Akihko
Canon Kabushiki Kaisha
Dzierzynski Paul M.
Nguyen Kiet T.
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