Copy protection for a recordable medium and for controlling a re

Details Copy protection for a recordable medium and for controlling a re Copy protection for a recordable medium and for controlling a re

1997-07-29

2000-06-06

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

369 84, G06K 710

Patent

active

060707992

ABSTRACT:
Copy protection for an original recordable medium such as an optical disk having at least one recording surface which records digital information, including the digital information having a title ID code which identifies the digital information; and a copy classification code for the digital information which indicates to a recorder whether it is prohibited from making copies, permitted to make only a single copy or does not restrict the number of copies to be made.

REFERENCES:
patent: 5231546 (1993-07-01), Shimada
patent: 5274623 (1993-12-01), Usami et al.
patent: 5430281 (1995-07-01), Lentz et al.
patent: 5489768 (1996-02-01), Brownstein et al.
patent: 5572589 (1996-11-01), Waters et al.
patent: 5650991 (1997-07-01), Fujiie
patent: 5706047 (1998-01-01), Lentz et al.
patent: 5729516 (1998-03-01), Tozaki et al.

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