Magnetic disc cartridge and corresponding system/method for limi

Details Magnetic disc cartridge and corresponding system/method for limi Magnetic disc cartridge and corresponding system/method for limi

1997-03-12

1999-04-20

Klimowecz, William J

Dynamic magnetic information storage or retrieval

Record medium

In container

380 4, 380 23, 39518801, G11B 2303, H04L 932

Patent

active

058962557

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. A magnetic field generating member is provided within a magnetic disc cartridge, or embedded within a magneto-optical or magnetic disc, 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.

REFERENCES:
patent: 3612774 (1971-10-01), Wiklund
patent: 4325089 (1982-04-01), Hsu
patent: 4656548 (1987-04-01), Pfefferkorn et al.
patent: 4660116 (1987-04-01), Westfall et al.
patent: 4757534 (1988-07-01), Matyaj et al.
patent: 4791565 (1988-12-01), Dunham et al.
patent: 4796220 (1989-01-01), Wolfe
patent: 4802048 (1989-01-01), Perkins et al.
patent: 4815032 (1989-03-01), Fujii
patent: 4847718 (1989-07-01), Miller et al.
patent: 4849836 (1989-07-01), Kachikian
patent: 4853676 (1989-08-01), Kitts
patent: 4866769 (1989-09-01), Karp
patent: 4926388 (1990-05-01), Kunita et al.
patent: 4959861 (1990-09-01), Howlette
patent: 4975898 (1990-12-01), Yoshida
patent: 4980782 (1990-12-01), Ginkel
patent: 5023741 (1991-06-01), Conti et al.
patent: 5053893 (1991-10-01), Hayata et al.
patent: 5057947 (1991-10-01), Shimada
patent: 5072431 (1991-12-01), Ohmori et al.
patent: 5083224 (1992-01-01), Hoogendoorn et al.
patent: 5109413 (1992-04-01), Comerford et al.
patent: 5121380 (1992-06-01), Fujita et al.
patent: 5134496 (1992-07-01), Schwab et al.
patent: 5159182 (1992-10-01), Eisele
patent: 5199066 (1993-03-01), Logan
patent: 5210795 (1993-05-01), Lipner et al.
patent: 5267311 (1993-11-01), Bakhoum
patent: 5282247 (1994-01-01), McLean et al.
patent: 5375243 (1994-12-01), Parzych et al.
patent: 5559505 (1996-09-01), McNair
patent: 5590192 (1996-12-01), Lovett et al.
patent: 5592550 (1997-01-01), Davis et al.
patent: 5594227 (1997-01-01), Deo
patent: 5594319 (1997-01-01), Thandiwe
patent: 5636096 (1997-06-01), Mardirossian
patent: 5675321 (1997-10-01), McBride
patent: 5715313 (1998-02-01), Tsukuda et al.

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