Information recording and reproducing apparatus using probe

Details Information recording and reproducing apparatus using probe Information recording and reproducing apparatus using probe

G - Physics

11

B

G11B 9/00 (2006.01) G11B 11/00 (2006.01) G11B 19/04 (2006.01)

Patent

CA 2116497

An information recording and reproducing apparatus for recording and reproducing information to/from a recording medium in a scanning probe microscope comprises a circuit to reproduce recording bits formed on the recording medium on the basis of a physical amount such as tunnel current, interatomic force, electrostatic force, or magnetic force which occurs between the probe and the recording medium, a sensor to detect a state such as film thickness or film quality of the recording medium on the basis of the physical amount before the recording bits are reproduced, and a correcting circuit to correct reproducing conditions such as a magnitude of a voltage which is applied between the probe and the medium on the basis of the detected state of the medium.

Un appareil pour l'enregistrement et la reproduction de l'information enregistrée sur un support d'information dans un microscope-sonde à balayage comprend un circuit pour reproduire les bits d'enregistrement formés sur le support à partir d'une grandeur physique comme le courant tunnel, la force interatomique, la force électrostatique ou la force magnétique qui s'exerce entre la sonde et le support d'enregistrement, un capteur pour détecter un état comme l'épaisseur du film ou la qualité du film du support d'enregistrement à partir d'une grandeur physique avant que les bits d'enregistrement soient reproduits, et un circuit correcteur pour corriger les conditions de reproduction comme une tension qui est appliquée entre la sonde et le support, à partir de l'état détecté de ce dernier.

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