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Data delivery system and sending station therefor
| Details |
Inventors: Fujieda, Makoto;
Assignee: Fujitsu Limited (Kawasaki, JP)
Primary Examiner: Etienne; Ario
Assistant Examiner: Jacobs; LaShonda
Attorney, Agent or Firm: Staas & Halsey LLP
A data delivery system which delivers created data to all the parties that need it. Documents such as engineering drawings are stored as bulk data files in a bulk data database. Metadata files containing attribute information of bulk data are stored in a metadata database. When the date and time of a data distribution session is given to a date/time setting unit, an attribute identification unit makes access to a relevant metadata file to identify the attributes of the bulk data to be transmitted. Based on this result, a destination determination unit determines the destinations of each bulk data file. A format identification unit then identifies which data formats the receiving stations can handle. If necessary, the data format is changed by a format converter, so as to meet the requirements of each destination. Summary data briefly describes what kinds of bulk data files are to be distributed. A summary data transmitter compiles such summary data and sends it to the receiving stations. Each receiving station now returns a downloading request, and in response to this, a transmitter sends out the requested bulk data files, which meets the destination's format guideline. A receiver in the receiving station accepts those bulk data files and a reproduction unit restores the received data to its original form. |
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DETAILED DESCRIPTION Taking the above into consideration, an object of the present invention is to provide a sending station that can distribute engineering drawings and other data in a more reliable way.
To accomplish the above object, according to the present invention, there is provided a sending station which delivers data stored in its internal or external storage unit to at lease one receiving station.
This sending station comprises the following elements: an attribute identification unit which identifies the attributes of data to be distributed; a destination determination unit which determines the destinations of the data according to the attributes identified by the attribute identification unit; and a transmitter which sends the data to the destinations determined by the destination determination unit.
Further, another object of the present invention is to provide a data delivery system which does not slow down the response of the entire system even when a firewall is employed therein.
To accomplish the second object, according to the present invention, there is provided a data delivery system for delivering data stored in a sending station to at least one receiving station.
This system comprises the following elements: an attribute identification unit which identifies the attributes of data to be distributed; a destination determination unit which determines the destinations of the data according to the attributes identified by the attribute identification unit; a transmitter which sends the data to the destinations determined by the destination determination unit; a receiver unit which receives the data sent from the transmitter; and a reproduction unit which restores the data received by the receiver to its original form.
The above and other objects, features and advantages of the present invention will become apparent from the following description when taken in conjunction with the accompanying drawings which illustrate preferred embodiments of the present invention by way of example
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