Device to selectively protect a reproduction of a disk,...

Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique

Reexamination Certificate

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Details

C713S193000

Reexamination Certificate

active

07096334

ABSTRACT:
A device to protect a reproduction of a disk, a method of protecting the reproduction of the disk, and a recording medium for the method. The device includes a key setting unit to generate a key to encode lead-in region information of the disk desired to be reproduced and a key storing unit to store the key. A key storing unit in the device stores the key generated by the key setting unit, and a reproduction determining unit determines whether to reproduce the disk using the key.

REFERENCES:
patent: 6993135 (2006-01-01), Ishibashi
patent: 2001/0021255 (2001-09-01), Ishibashi
patent: 2001/0037459 (2001-11-01), Ogawa et al.
patent: 2002/0044657 (2002-04-01), Asano et al.
patent: 2002/0085722 (2002-07-01), Asano et al.
patent: 2002/0152387 (2002-10-01), Asano
patent: 2002/0159594 (2002-10-01), Kori
patent: 2003/0051151 (2003-03-01), Asano et al.
patent: 2003/0152368 (2003-08-01), Kitani
patent: 08-235758 (1996-09-01), None
patent: 2001-268510 (2001-09-01), None
Office Action dated Jan. 25, 2005 issued in corresponding Korean Patent Application No. 10-2002-0054517.

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