Content sharing system, content reproduction apparatus, content recording apparatus, group management server, program, and content reproduction controlling method
First Claim
1. A content sharing system, comprising:
- a plurality of content processing apparatuses for recording and/or reproducing content data; and
a group management server for placing said content processing apparatuses into group registrations;
the content data being shared between those of said content processing apparatuses that are placed in the same group registration;
a recorder ID being applied uniquely in terms of a unit of a content recording apparatus that can record content data and a group ID being applied uniquely in terms of a unit of a user who owns any of said content processing apparatuses;
said group management server including a user authentication section for authenticating, in response to a request for registration from any of said content processing apparatuses, a user who owns the content processing apparatus of the source of the request for registration, an apparatus registration section for registering the content processing apparatus of the source of the request for registration into the apparatus group owned by the authenticated user, and a group ID notification section for issuing a notification of the group ID corresponding to the authenticated user to the registered content processing apparatus;
said content processing apparatus including a content recording apparatus that can record content data and a content reproduction apparatus that can reproduce content data;
said content recording apparatus including a content production section for producing content data, and a recorder ID addition section for adding the recorder ID of said content recording apparatus to the content data produced by said content production section;
said content reproduction apparatus including storage means for storing a first group ID corresponding to a user who owns said content reproduction apparatus and a reproduction permission ID list, a list management section for determining whether or not a second group ID corresponding to a user who owns said content recording apparatus and the first group ID coincide with each other and adding, if the second group ID and the first group ID coincide with each other, the recorder ID of said content recording apparatus to the reproduction permission ID list, and a reproduction control section for reading out a recorder ID added to content data, determining whether or not the recorder ID read out is included in said reproduction permission ID list and permitting, if the recorder ID read out is included in said reproduction permission ID list, reproduction of the content data but limiting, if the recorder ID read out is not included in said reproduction permission ID list, reproduction of the content data.
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Accused Products
Abstract
A content sharing system is disclosed that can efficiently execute copyright management and can promote the degree of freedom and convenience in sharing of content within a legal range of private utilization. A group management server places a plurality of content processing apparatuses in terms of a unit of an owner into a group registration and issues a notification of a group ID of the group. A content recording apparatus adds a recorder ID thereof to production content produced thereby. Further, a content reproduction apparatus controls reproduction of content based on a recorder ID read out from content and a reproduction permission ID list. If the different processing apparatuses have the same group ID, the recorder ID can be added to the reproduction permission ID list.
44 Citations
31 Claims
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1. A content sharing system, comprising:
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a plurality of content processing apparatuses for recording and/or reproducing content data; and
a group management server for placing said content processing apparatuses into group registrations;
the content data being shared between those of said content processing apparatuses that are placed in the same group registration;
a recorder ID being applied uniquely in terms of a unit of a content recording apparatus that can record content data and a group ID being applied uniquely in terms of a unit of a user who owns any of said content processing apparatuses;
said group management server including a user authentication section for authenticating, in response to a request for registration from any of said content processing apparatuses, a user who owns the content processing apparatus of the source of the request for registration, an apparatus registration section for registering the content processing apparatus of the source of the request for registration into the apparatus group owned by the authenticated user, and a group ID notification section for issuing a notification of the group ID corresponding to the authenticated user to the registered content processing apparatus;
said content processing apparatus including a content recording apparatus that can record content data and a content reproduction apparatus that can reproduce content data;
said content recording apparatus including a content production section for producing content data, and a recorder ID addition section for adding the recorder ID of said content recording apparatus to the content data produced by said content production section;
said content reproduction apparatus including storage means for storing a first group ID corresponding to a user who owns said content reproduction apparatus and a reproduction permission ID list, a list management section for determining whether or not a second group ID corresponding to a user who owns said content recording apparatus and the first group ID coincide with each other and adding, if the second group ID and the first group ID coincide with each other, the recorder ID of said content recording apparatus to the reproduction permission ID list, and a reproduction control section for reading out a recorder ID added to content data, determining whether or not the recorder ID read out is included in said reproduction permission ID list and permitting, if the recorder ID read out is included in said reproduction permission ID list, reproduction of the content data but limiting, if the recorder ID read out is not included in said reproduction permission ID list, reproduction of the content data.
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2. A content reproduction apparatus for controlling reproduction of content data based on a group ID applied uniquely in terms of a unit of a user who owns a content processing apparatus and a recorder ID applied uniquely in terms of a unit of a content recording apparatus that can record content data, comprising:
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storage means for storing a first group ID, corresponding to a user who owns said content reproduction apparatus, and a reproduction permission ID list;
a list management section for determining whether or not a second group ID corresponding to a user who owns a different content recording apparatus and the first group ID coincide with each other and adding, if the second group ID and the first group ID coincide with each other, the recorder ID of said different content recording apparatus to the reproduction permission ID list; and
a reproduction control section for reading out a recorder ID added to content data, determining whether or not the recorder ID read out is included in said reproduction permission ID list, and permitting, if the recorder ID read out is included in said reproduction permission ID list, reproduction of the content data but limiting, if the recorder ID read out is not included in said reproduction permission ID list, reproduction of the content data. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A content recording apparatus that can record content data, comprising:
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storage means for storing a first group ID, corresponding to a user who owns said content recording apparatus, from among group IDs applied uniquely in terms of a unit of a user who owns a content processing apparatus, and a recorder ID of said content recording apparatus from among recorder IDs applied uniquely in terms of a unit of a content recording apparatus;
a content production section for producing content data;
a recorder ID addition section for adding the recorder ID of said content recording apparatus to the content data produced by said content production section; and
a certificate issuing section for issuing a group certificate comprising the first group ID and the recorder ID of said content recording apparatus. - View Dependent Claims (13, 14, 15)
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16. A group management server for placing a plurality of content processing apparatuses that record and/or reproduce content data into group registrations, comprising:
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a recorder ID being applied uniquely in terms a unit of a content recording apparatus that can record content data among said content processing apparatuses and a group ID being applied uniquely in terms of a unit of a user who owns any of said content processing apparatuses;
a user authentication section for authenticating, in response to a request for registration from any of said content processing apparatuses, a user who owns the content processing apparatus of the source of the request for registration;
an apparatus registration section for registering the content processing apparatus of the source of the request for registration into the apparatus group owned by the authenticated user;
a group ID notification section for issuing a notification of the group ID corresponding to the authenticated user to the registered content processing apparatus; and
a certificate issuing section for issuing a group certificate wherein a group ID, of which content recording apparatuses from among the registered content recording apparatus are notified, and the recorder IDs of the content recording apparatuses are coordinated with each other. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A program for causing a content reproduction apparatus to execute:
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a list updating process of determining whether or not a first group ID corresponding to a user who owns said content reproduction apparatus from among group IDs applied uniquely in terms of a unit of a user who owns any content processing apparatus and a second group ID corresponding to a user who owns a different content recording apparatus coincide with each other, and adding to a reproduction permission ID list, if the first group ID and the second group ID coincide with each other, a recorder ID of the different content recording apparatus from among recorder IDs applied uniquely in terms of a unit of a content recording apparatus that can record content data; and
a reproduction control process of reading out a recorder ID added to content data, determining whether or not the recorder ID read out is included in said reproduction permission ID list and permitting, if the recorder ID read out is included in said reproduction permission ID list, reproduction of the content data but limiting, if the recorder ID read out is not included in said reproduction permission ID list, reproduction of the content data.
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23. A program for causing a content recording apparatus to execute:
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a content production process of producing content data;
a recorder ID adding process of adding, to the content data produced by the content production process, a recorder ID of said content recording apparatus from among recorder IDs applied uniquely in terms of a unit of a content recording apparatus; and
a certificate issuing process of issuing a group certificate in which a first group ID, corresponding to a user who owns said content recording apparatus from among group IDs applied uniquely in terms of a unit of a user who owns any content processing apparatus, and the recorder ID of said content recording apparatus are coordinated with each other.
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24. A program for causing a group management server connected to content processing apparatuses to execute:
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a user authentication process of authenticating, in response to a request for registration from any of said content processing apparatuses, a user who owns the content processing apparatus of the source of the request for registration;
an apparatus registration process of registering, into an apparatus group owned by the authenticated user, the content processing apparatus of the source of the request for registration;
a group ID notification process of issuing, to the registered content processing apparatus, a notification of a group ID corresponding to the authenticated user from among group IDs applied uniquely in terms of a unit of a user who owns any of said content processing apparatuses; and
a certificate issuing process of issuing a group certificate in which a group ID, of which content recording apparatuses from among the registered content recording apparatuses are notified, and the recorder IDs of the content recording apparatuses are coordinated with each other.
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25. A content reproduction controlling method for controlling reproduction of content data by a content reproduction apparatus based on a group ID applied uniquely in terms of a unit of a user who owns any of content processing apparatus, a recorder ID applied uniquely in terms of a unit of a content recording apparatus that can record content data from among said content processing apparatus, and a reproduction permission ID list stored in said content reproduction apparatus, comprising:
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acquiring a first group ID corresponding to a user who owns said content reproduction apparatus;
acquiring a second group ID corresponding to a user who owns a different content recording apparatus different from said content reproduction apparatus;
list updating comprising determining whether or not the first group ID and the second group ID coincide with each other and adding, if the first group ID and the second group ID coincide with each other, the recorder ID of the different content recording apparatus to a reproduction permission ID list; and
reproduction controlling comprising reading out a recorder ID added to content data, determining whether or not the recorder ID read out is included in said reproduction permission ID list, and permitting, if the recorder ID read out is included in said reproduction permission ID list, reproduction of the content data, but limiting, if the recorder ID read out is not included in said reproduction permission ID list, reproduction of the content data. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification