Recording and reproducing apparatus

Details Recording and reproducing apparatus Recording and reproducing apparatus

1996-08-22

1998-07-07

Edun, Muhammad N.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

369 47, G11B 700

Patent

active

057779775

ABSTRACT:
A recording and reproducing apparatus has a recording and/or reading head having a tip for recording and/or reproducing information on and/or from a recording medium. Information is recorded and/or erased by way of a polarization reversal or transport of electric charges in a predetermined area of the recording medium in response to application of a pulse voltage from the head. The information recorded in the predetermined area is detected as a change in the electric charges or an electrostatic capacitance or a surface potential or their differential in the predetermined area for reproducing the information.

REFERENCES:
patent: 5323375 (1994-06-01), Ihara et al.
patent: 5439777 (1995-08-01), Kawada et al.

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