Content reproduction apparatus, license issue server, and content reproduction system
First Claim
1. A content reproduction apparatus for reproducing a content that is a digital copyrighted work, based on license information that includes a use condition, said use condition being information indicating an extent of use permitted for the content, the apparatus comprising:
- a plurality of use condition judgment units operable to judge, based on a use condition included in each license information, whether or not use of a content corresponding to said each license information is permitted, said each license information being generated under each of a plurality of different rights management methods for realizing protection of content copyrights using copyright protection technology, and said plurality of use condition judgment units corresponding respectively to said plurality of different rights management methods;
a method selection unit operable to select a use condition judgment unit that corresponds to a rights management method by identifying said right management method for the license information corresponding to the content, and cause said selected use condition judgment unit to judge whether or not use of the content is permitted; and
a reproduction unit operable to reproduce the content when it is judged, by said selected use condition judgment unit, that use of said content is permitted.
1 Assignment
0 Petitions
Accused Products
Abstract
The first reproduction terminal (101) includes: a cipher communication unit (202) operable to perform cipher communication with a license issuance server (103), and obtain license information generated under a rights management method selected by a user, from among a plurality of rights management methods for protecting content copyrights; a license storage unit (203) operable to store the obtained license information; a plurality of use condition judgment units (204) corresponding respectively to each rights management method, operable to judge, based on a use condition included in license information generated under a corresponding rights management method, whether or not the use of a content corresponding to the license information is permitted; a method selection unit (205) operable to select a use condition judgment unit (204) corresponding to a rights management method by identifying such rights management method under which a license was generated, and cause such selected use condition judgment unit (204) to judge whether or not use of a condition is permitted; and a reproduction unit (206) operable to reproduce the content when it is judged that use is permitted.
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Citations
30 Claims
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1. A content reproduction apparatus for reproducing a content that is a digital copyrighted work, based on license information that includes a use condition, said use condition being information indicating an extent of use permitted for the content, the apparatus comprising:
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a plurality of use condition judgment units operable to judge, based on a use condition included in each license information, whether or not use of a content corresponding to said each license information is permitted, said each license information being generated under each of a plurality of different rights management methods for realizing protection of content copyrights using copyright protection technology, and said plurality of use condition judgment units corresponding respectively to said plurality of different rights management methods;
a method selection unit operable to select a use condition judgment unit that corresponds to a rights management method by identifying said right management method for the license information corresponding to the content, and cause said selected use condition judgment unit to judge whether or not use of the content is permitted; and
a reproduction unit operable to reproduce the content when it is judged, by said selected use condition judgment unit, that use of said content is permitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A license issuance server for issuing license information for controlling use of a content on a content reproduction apparatus, comprising:
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a use condition storage unit operable to store, in advance, a use condition which is information indicating an extent of use permitted for the content which is a digital copyrighted work;
a plurality of license generation units operable to generate license information that includes the use condition, based on a plurality of rights management methods for realizing protection of content copyrights using copyright protection technology, said plurality of license generation units corresponding respectively to said plurality of rights management methods; and
a method selection unit operable to select the license generation unit corresponding to a specific rights management method requested from the content reproduction apparatus, and cause said selected license generation unit to generate the license information requested from said content reproduction apparatus. - View Dependent Claims (16, 17, 18, 19)
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20. A content reproduction system comprising a server and a content reproduction apparatus, said server generating and issuing license information for controlling use of a content on a content reproduction apparatus, and said content reproduction apparatus reproducing the content based on the license information obtained from the server,
wherein the server includes: -
a use condition storage unit operable to store, in advance, a use condition which is information indicating an extent of use permitted for a content which is a digital copyrighted work;
a plurality of license generation units operable to generate license information that includes the use condition, based on a plurality of rights management methods for realizing protection of content copyrights using copyright protection technology, said plurality of license generation units corresponding respectively to said plurality of rights management methods; and
a method selection unit operable to select the license generation unit corresponding to a specific rights management method requested from the content reproduction apparatus, and cause said selected license generation unit to generate the license information requested from said content reproduction apparatus, and the content reproduction apparatus includes;
a plurality of use condition judgment units operable to judge, based on the use condition included in each license information, whether or not use of the content corresponding to said each license information is permitted, said each license information being generated under each of a plurality of different rights management methods for realizing protection of content copyrights using copyright protection technology, and said plurality of use condition judgment units corresponding respectively to said plurality of different rights management methods;
a method selection unit operable to select a use condition judgment unit that corresponds to a rights management method by identifying said right management method for the license information corresponding to the content, and cause said selected use condition judgment unit to judge whether or not use of the content is permitted; and
a reproduction unit operable to reproduce the content when it is judged, by said selected use condition judgment unit, that use of said content is permitted. - View Dependent Claims (21)
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22. A content reproduction method for reproducing a content that is a digital copyrighted work, based on license information that includes a use condition, said use condition being information indicating an extent of use permitted for the content, the method comprising:
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a plurality of use condition judgment steps of judging, based on a use condition included in each license information, whether or not use of a content corresponding to said each license information is permitted, said each license information being generated under each of a plurality of different rights management methods for realizing protection of content copyrights using copyright protection technology, and each of said plurality of use condition judgment steps being different for each of said plurality of different rights management methods;
a method selection step of selecting a use condition judgment step that corresponds to a rights management method by identifying said right management method for the license information corresponding to the content, and causing judgment of whether or not use of the content is permitted in said selected use condition judgment step; and
a reproduction step of reproducing the content, when it is judged in said selected use condition judgment step that use of said content is permitted. - View Dependent Claims (23, 24)
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25. A license issuance method for issuing license information for controlling use of a content on a content reproduction apparatus,
wherein a use condition which is information indicating the extent of use permitted for a content that is a digital copyrighted work, is stored in advance, the method comprising: -
a plurality of license generation steps of generating license information that includes the use condition, based on a plurality of rights management methods for realizing protection of content copyrights using copyright protection technology, said plurality of license generation steps respectively generating license information in said plurality of rights management methods; and
a method selection step of selecting the license generation step corresponding to a specific rights management method requested from the content reproduction apparatus, and causing the license information requested from said content reproduction apparatus to be generated in said selected license generation step. - View Dependent Claims (26)
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27. A program for a content reproduction apparatus for reproducing a content that is a digital copyrighted work, based on license information that includes a use condition, said use condition being information indicating an extent of use permitted for the content, the program causing a computer to execute:
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a plurality of use condition judgment steps of judging, based on a use condition included in each license information, whether or not use of a content corresponding to said each license information is permitted, said each license information being generated under each of a plurality of different rights management methods for realizing protection of content copyrights using copyright protection technology, and each of said plurality of use condition judgment steps being different for each of said plurality of different rights management methods;
a method selection step of selecting a use condition judgment step that corresponds to a rights management method by identifying said right management method for the license information corresponding to the content, and causing judgment of whether or not use of the content is permitted in said selected use condition judgment step; and
a reproduction step of reproducing the content, when it is judged in said selected use condition judgment step that use of said content is permitted. - View Dependent Claims (28)
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29. A program for a license issuance server which issues license information for controlling use of a content on a content reproduction apparatus,
wherein a use condition which is information indicating the extent of use permitted for a content that is a digital copyrighted work, is stored in advance, the program causing a computer to execute: a plurality of license generation steps of generating license information that includes the use condition, based on a plurality of rights management methods for realizing protection of content copyrights using copyright protection technology, said use condition judgment units respectively generating license information in said rights management methods; and
a method selection step of selecting the license generation step corresponding to a specific rights management method requested from a content reproduction apparatus, and causing the license information requested from said content reproduction apparatus to be generated in said selected license generation step. - View Dependent Claims (30)
Specification