NETWORK AV CONTENTS PLAYBACK SYSTEM, SERVER, PROGRAM AND RECORDING MEDIUM
1 Assignment
0 Petitions
Accused Products
Abstract
A system, including: an audio-visual terminal; and a storage terminal, wherein the audio-visual terminal establishes a first connection protected by authentication and encryption, to server providing AV contents on a network; acquires an authorization to use of the contents by the first connection, concurrently acquires download control information including contents location information that indicates a location of the AV contents on the network and license information about the AV contents; and transmits the acquired download control information to the storage terminal, and the storage terminal acquires the download control information from the audio-visual terminal, downloads the contents from the server based on the contents location information via the network and stores the contents; acquires a license of the contents from the server based on the license information and stores the license; and uses the contents for a predetermined period based on the stored license.
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Citations
47 Claims
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1-22. -22. (canceled)
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23. A network AV contents playback system, comprising:
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an audio-visual terminal; and a storage terminal, wherein said audio-visual terminal establishes a first connection protected by authentication and encryption, to one or more servers providing AV contents on a network, acquires an authorization to use said AV contents by said first connection, concurrently acquires download control information including AV contents location information that indicates a location of said AV contents on said network and license information about said AV contents, and transmits said acquired download control information to said storage terminal, and said storage terminal acquires said download control information from said audio-visual terminal, downloads said AV contents from said server based on said AV contents location information via said network and stores said AV contents, acquires a license of said AV contents from said server based on said license information and stores the license, and uses said AV contents for a predetermined period based on said stored license. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 42, 45)
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35. A server that communicates with an audio-visual terminal and a storage terminal via a network,
wherein said servers retains an account and a terminal ID associated with said account, establishes a first connection protected by authentication and encryption, to said audio-visual terminal, grants an authorization to use of an AV contents, to said account via said first connection, concurrently transmits download control information including AV contents location information that indicates the location of said AV contents on said network and license information including a license ID that identifies the authorization to use of said AV contents on said server, to said audio-visual terminal, and establishes a second connection protected by authentication and encryption to said storage terminal, and when the server receives a license acquisition request from said storage terminal via said second connection, the server compares a license ID of an AV contents included in said license acquisition request with the license ID of the AV contents whose authorization to use is granted to said account to check whether the license IDs agree with each other, further compares a terminal ID included in said license acquisition request with the terminal ID associated with said account to check whether the terminal IDs agree with each other, and distributes a license to said storage terminal in a case where both agree with each other.
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36. A network AV contents playback system, comprising:
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an audio-visual terminal; a storage terminal; and one or more servers, wherein said servers retain an account and a terminal ID associated with said account, said audio-visual terminal establishes a first connection protected by authentication and encryption, to a server, uses said first connection to acquire an authorization to use of AV contents granted to said account, concurrently acquires download control information including AV contents location information that indicates the location of said AV contents on a network and license information including a license ID that identifies the authorization to use of said AV contents on said server, and transmits said acquired download control information to said storage terminal, said storage terminal acquires said download control information from said audio-visual terminal, establishes a second connection protected by authentication and encryption, to said server, and uses said second connection to transmit a license acquisition request to said server, the license acquisition request including at least the license ID of said AV contents included in said license information and a terminal ID of said storage terminal, said server compares the license ID of the AV contents included in said license acquisition request with the license ID of the AV contents whose authorization to use is granted to said account to check whether the license IDs agree with each other, further compares the terminal ID of said storage terminal included in said license acquisition request with the terminal ID associated with said account to check whether the terminal IDs agree with each other, and distributes a license to said storage terminal in a case where both agree with each other, and said storage terminal acquires said license from said server, stores said license and decrypts said AV contents using an AV contents encryption key included in said license.
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37. A network AV contents playback system, comprising:
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an instruction terminal; a storage terminal; and one or more servers, wherein said servers retain an account and a terminal ID associated with said account, said instruction terminal establishes a first connection protected by authentication and encryption, to a server and uses said first connection to acquire an authorization to use of AV contents granted to said account, said storage terminal regularly establishes a fourth connection protected by authentication and encryption, to said server to request distribution of download control information, said server distributes download control information including AV contents location information that indicates the location of said AV contents on a network and license information including a license ID that identifies the authorization to use of said AV contents on said server, to the storage terminal corresponding to the terminal ID associated with said account via said fourth connection in response to the request for distribution of said download control information, said storage terminal downloads said AV contents from said server based on said AV contents location information in said download control information, and stores said AV contents, said storage terminal establishes a second connection protected by authentication and encryption, to said server and uses said second connection to transmit a license acquisition request to said server, the license acquisition request including at least the license ID of said AV contents included in said license information and a terminal ID of said storage terminal, said server compares the license ID of the AV contents included in said license acquisition request with the license ID of the AV contents whose authorization to use is granted to said account to check whether the license IDs agree with each other, further compares the terminal ID of said storage terminal included in said license acquisition request with the terminal ID associated with said account to check whether the terminal IDs agree with each other, and distributes a license to said storage terminal in a case where both agree with each other, and said storage terminal acquires said license from said server, stores said license and decrypts said AV contents using an AV contents encryption key included in said license. - View Dependent Claims (40, 43, 46)
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38. A network AV contents playback system, comprising:
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an instruction terminal; a storage terminal; and one or more servers, wherein said servers retain an account and a terminal ID associated with said account, said instruction terminal establishes a first connection protected by authentication and encryption, to a server and uses said first connection to acquire an authorization to use of an AV contents granted to said account, said server, after said instruction terminal acquires the authorization to use of said AV contents, calls the storage terminal corresponding to the terminal ID associated with said account, to establish a fourth connection and distributes, to said storage terminal, download control information including AV contents location information that indicates the location of said AV contents on a network and license information including a license ID that identifies the authorization of said AV contents on said server, said storage terminal downloads said AV contents from said server based on said AV contents location information in said download control information, and stores said AV contents, said storage terminal establishes a second connection protected by authentication and encryption, to said server and uses said second connection to transmit a license acquisition request to said server, the license acquisition request including at least the license ID of said AV contents included in said license information and a terminal ID of said storage terminal, said server compares the license ID of the AV contents included in said license acquisition request with the license ID of the AV contents whose authorization to use is granted to said account to check whether the license IDs agree with each other, further compares the terminal ID of said storage terminal included in said license acquisition request with the terminal ID associated with said account to check whether the terminal IDs agree with each other, and distributes a license to said storage terminal in a case where both agree with each other, and said storage terminal acquires said license from said server, stores said license and decrypts said AV contents using an AV contents encryption key included in said license. - View Dependent Claims (39, 41, 44, 47)
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Specification