Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1995-10-02
1997-06-03
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record medium
In container
360137, G11B 2303
Patent
active
056360967
ABSTRACT:
A disc cartridge and corresponding method/system are provided for limiting the number of copies which may be made of software stored on a magnetic disc. According to certain embodiments, only a single copy of the software may be made from the disc, after which the software is erased from the disc by way of an erasing magnetic field. A magnet is provided on or within the disc cartridge so that after copying of the software from the first disc to a second disc, the magnet is energized so as to create an erasing magnetic or electromagnetic field proximate the first disc in order to erase the copied software therefrom, while an anti-copy signal is copied or otherwise sent along with the software from the first disc to the second disc so as to prevent later copying of the software from the second disc. According to certain other embodiments of this invention, a method/system is provided for erasing software from a disc using the above-discussed cartridge after a user attempting to copy the software enters an incorrect password a predetermined number of consecutive times.
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Aris Mardirossian, Inc.
Klimowicz William J.
Levy Stuart S.
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