摘要:
A content distribution system includes plurality of cache server apparatus configured to obtain content from a distribution apparatus, and to store the content temporarily; a location information data storage unit configured to store location information data, which indicates location information of each cache server apparatus; a description data storage unit configured to store at least one item of description data, which includes the location information of a distribution apparatus; a converter configured to convert the location information of a distribution apparatus storing a requested content, which is included in description data, into location information of a specified cache server apparatus, by referring to the location information data; and a reception terminal apparatus configured to obtain the description data converted by the converter, and to receive the requested content from the specified cache server apparatus.
摘要:
Acquisition portion acquires distribution rule information, user situation information, and a distribution information structured document output from contents distribution server, and evaluation object extraction portion extracts evaluation objects related with the user side situation from evaluation objects of each condition description portion contained in the distribution rule information, and user situation extraction portion extracts the situation of user terminal corresponding to evaluation objects concerned from the user situation information, and condition evaluation portion evaluates each condition description portion on the basis of the situation of the user terminal, and conversion rule information generation portion generates a conversion rule information on the basis of the result of the evaluation, and conversion portion converts a distribution information structured document on the basis of the conversion rule information, and output portion outputs the distribution information structured document to the contents distribution server.
摘要:
The object of the present invention is to enable broadcast media to be reproduced quickly while reducing an overhead accompanied with the broadcast media. A broadcast communication system 1 according to the present invention transmits the broadcast media from a server 10 to a communication terminal 20. The server 10 transmits broadcast notification information (SAP message) designating at least one broadcast media, and transmits reproduction information indicating a reproduction method of the designated broadcast media prior to reproduction of the broadcast media by the communication terminal 20. The communication terminal 20 reproduces the broadcast media designated by the broadcast notification information (SAP message) based on the reproduction information when receiving the broadcast notification information.
摘要:
The information delivery system is configured with a media database 1009 which stores media data, a sequence information database 1008 which stores sequence information for specifying the address of media data to deliver, a scene searcher 1005 which verifies the sequence information according to a request of the controlling media received from client terminal 1000 and retrieves appropriate media data from the media database 1009 starting from a prescribed point based on a result of the verification, and an output unit 1006 which delivers the retrieved media data to the client terminal 1000.
摘要:
An identifier generating method according to the present invention has a canonicalization process step of subjecting document data to a canonicalization process to correct fluctuation of expression; and an identifier generating step of, based on all or part of document data having been subjected to the canonicalization process in the canonicalization process step, generating an identifier uniquely specifying the document data or part thereof. When the fluctuation of expression is corrected by the canonicalization process, prior to the generation of the identifier in this way, the XML documents or RDF documents with the same meaning are transformed into documents in the same expression, and the identical identifier can be generated for them by a function of generating an identifier from a sequence of characters, as typified by a one-way function.
摘要:
Service procedures and/or message formats such as encryption and attachment of a digital signature are properly used according to an available amount of money defined in a certificate of service, network environments such as intensity of security, transmission band and locations of communication paths and operation policy, whereby the system enables to shorten service providing time, to adjust the intensity of security and to reduce the amount of information transmitted through the information network. It is preferable to encrypt a part of the information or to attach a digital signature to the part of the information, instead of encrypting all information or attaching the digital signature to all information. Consequently, encryption of only the important portion of the information can be available. It is further preferable to store a part of the information into a storage device, instead of containing a part of the information into the body of the message to be sent, and to contain information of the location in the storage device into the body of the message to be sent. As a result, the amount of information transmitted through the information network can be reduced. This technique is particularly effective for an attachment of low usage information.