摘要:
A content-related information delivery system for delivering information related to a content to a user-owned apparatus. The system is composed of a playback apparatus and a server. The playback apparatus monitors a current playback position of the content during playback, generates playback position information specifying a segment of the content, and transmits the generated playback position information to the server. The server receives the playback position information from the playback apparatus, acquires information related to the segment of the content specified by the received playback position information, and transmits the acquired related information to the user-owned apparatus.
摘要:
A contents supply apparatus supplies sub-content that relates to main content. A DVD-ROM stores a bind key unique to the DVD-ROM and main content that is a digital work. A main player reads the bind key from the DVD-ROM, acquires sub-content that relates to the main content stored on the DVD-ROM, generates encrypted sub-content by encrypting the acquired sub-content based on the read bind key, and writes the generated encrypted content to an SD memory card. A sub-player reads the bind key from the DVD-ROM, reads the encrypted sub-content from the SD memory card, generates sub-content by decrypting the read encrypted sub-content based on the bind key, and plays back the generated sub-content.
摘要:
A contents supply apparatus supplies sub-content that relates to main content. A DVD-ROM stores a bind key unique to the DVD-ROM and main content that is a digital work. A main player reads the bind key from the DVD-ROM, acquires sub-content that relates to the main content stored on the DVD-ROM, generates encrypted sub-content by encrypting the acquired sub-content based on the read bind key, and writes the generated encrypted content to an SD memory card. A sub-player reads the bind key from the DVD-ROM, reads the encrypted sub-content from the SD memory card, generates sub-content by decrypting the read encrypted sub-content based on the bind key, and plays back the generated sub-content.
摘要:
To provide a contents linkage information delivery system for use by a content provider to deliver contents in a manner that a user is allowed to acquire, according to a user request, a content that relates to another content. The present invention is directed to a contents linkage information delivery system for delivering a related content that is associated with another content. The contents linkage information delivery system is composed of a first playback apparatus for playing back the other content, a server for transmitting the related content, and a second playback apparatus for playing back the related content. The first playback apparatus, the server, and the second playback apparatus mutually communicate via a communications channel. The first playback apparatus includes a playback position information acquisition unit for acquiring time-base playback position information of the other content, a request input unit for receiving a user request, and a first transmission unit for transmitting the time-base playback position information. The server includes a first reception unit for receiving the time-base playback position information transmitted from the first playback apparatus, a related content acquisition unit for acquiring the related content based on the time-base playback position information, and a second transmission unit for transmitting the related content. The second playback apparatus includes a second reception unit for receiving the related content transmitted from the server, and a first output unit for outputting the related content.
摘要:
A storage-medium rental system includes a portable storage medium to be rented to the user, a portable semiconductor memory owned by the user, a rental-shop apparatus owned by the rental agent, and a playback apparatus owned by the user. The storage medium prestores encrypted content generated by encrypting digital work using a content encryption key. The semiconductor memory has an area f or securely storing a content decryption key. The rental-shop apparatus stores a content decryption key for decrypting the encrypted content. The rental-shop apparatus writes the content decryption key to the semiconductor memory. The playback apparatus securely reads the content decryption key from the semiconductor memory, reads the encrypted content from the storage medium, decrypts the encrypted content using the content decryption key, and plays back the decrypted content.
摘要:
A contents supply apparatus supplies sub-content that relates to main content. A DVD-ROM stores a bind key unique to the DVD-ROM and main content that is a digital work. A main player reads the bind key from the DVD-ROM, acquires sub-content that relates to the main content stored on the DVD-ROM, generates encrypted sub-content by encrypting the acquired sub-content based on the read bind key, and writes the generated encrypted content to an SD memory card. A sub-player reads the bind key from the DVD-ROM, reads the encrypted sub-content from the SD memory card, generates sub-content by decrypting the read encrypted sub-content based on the bind key, and plays back the generated sub-content.
摘要:
A contents linkage information delivery system for delivering a related content that is associated with another content. The system includes a first playback apparatus, a server for transmitting the related content, and a second playback apparatus for playing back the related content, which each communicate via a communications channel. The first playback apparatus includes a playback position information acquisition unit for acquiring time-base playback position information of the other content, a request input unit for receiving a user request, and a first transmission unit for transmitting the time-base playback position information. The server includes a first reception unit for receiving the time-base playback position information a related content acquisition unit for acquiring the related content based on the time-base playback position information, and a second transmission unit for transmitting the related content. The second playback apparatus includes a second reception unit.
摘要:
A storage-medium rental system includes a portable storage medium to be rented to the user, a portable semiconductor memory owned by the user, a rental-shop apparatus owned by the rental agent, and a reproduction apparatus owned by the user. The storage medium prestores encrypted content which is generated by encrypting digital work by using a content encryption key. The semiconductor memory has an area for securely storing a content decryption key. The rental-shop apparatus stores a content decryption key for decrypting the encrypted content. The rental-shop apparatus writes the content decryption key to the semiconductor memory. The reproduction apparatus securely reads the content decryption key from the semiconductor memory, reads the encrypted content from the storage medium, decrypts the encrypted content by using the content decryption key, and reproduces the decrypted content.
摘要:
The present invention provides a server apparatus that is able to, when a content stored in a server apparatus is to be received with the use of a streaming technique and played back, have the content played back without delay in a network with a low bandwidth. The content stored in the server apparatus is formed with contents data with a high bit rate to be directly played back and contents data with a low bit rate to be played back with the use of the streaming technique. When the content is to be played back directly, the content data with a high bit rate is played back. When the content is to be played back with the use of the streaming technique, the content data with a low bit rate is transmitted.
摘要:
A terminal device 102 includes a transmission/reception unit 306 that transmits, to a server device 101, information necessary for judgment as to whether to permit use of content. The server device 101 includes: a judgment unit 204 that judges whether to permit the terminal device 102 to use the content, based on terminal device management information set by a content provider, and the information necessary for the judgment and received from the terminal device 102; a notification data storage unit 203 that stores notifications to be presented to a user of the terminal device 102; and a transmission/reception unit 205 that transmits either information necessary for use of the content or one of the notifications according to a result of the judgment by the judgment unit 204.