Contents using device, and contents using method

Details Contents using device, and contents using method Contents using device, and contents using method

2011-07-19

2011-07-19

Tran, Ellen (Department: 2433)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C726S001000

Reexamination Certificate

active

07984508

ABSTRACT:
A contents using device (or a terminal device)300is composed of: a license processing unit305which judges, on the basis of a usage rule of a license, whether or not the content is available; a content reproduction unit304which uses the content judged by the terminal device300to be available; a restriction unit (or a content reproduction unit304) which restricts the license corresponding to the contents from being used by another source by reason that the license is currently in use, for a time period between a start and a normal end of the content usage by the content reproduction unit304; an event detection unit307which detects a predetermined event that occurs between the start and the normal end of the content usage and that forcefully aborts the content usage; a restriction-relaxation necessity judgment unit (or a recovery/penalty judgment unit)309which judges whether or not the predetermined event is against an intention of a user; and a restriction relaxation unit (or a license recovery unit)306which relaxes the restriction on the content usage when the recovery/penalty judgment unit309judges that the predetermined event is against the intention of the user.

REFERENCES:
patent: 2002/0112171 (2002-08-01), Ginter et al.
patent: 2003/0014655 (2003-01-01), England et al.
patent: 2003/0028622 (2003-02-01), Inoue et al.
patent: 2003/0104803 (2003-06-01), Adachi et al.
patent: 2004/0158731 (2004-08-01), Narin et al.
patent: 2002-8309 (2002-01-01), None
patent: 2003-167787 (2003-06-01), None
patent: 2005-524163 (2005-08-01), None
patent: 03/092264 (2003-11-01), None

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