G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 12/00 (2006.01) G06F 17/30 (2006.01)
Patent
CA 2041642
A distributed data base system is formed by a pluality of terminal units connected in a public network or a private network, each terminal unit stores respectively the real data and a temporary center for storing the one or a plurality of control information among various pieces of control information such as contents corresponding to each real data, keyword or command assigned to data and moreover check information set up for acquiring security is provided as the one of the terminal unit. A terminal unit utilizing data obtains identification information of termial units storing relevant real data by inputting contents, commands or keyword by making access to the temporary center and reads or extracts the necessary real data through the network from a terminal unit having real data based on such identification information but is capable of restricting users (terminal units) which are allowed to read the open data in accordance with a degree of importance of data. This temporary center, when it is assigned to the one terminal unit forming a distribute data base system, executes the control by gathering necessary - 89 - control information from each termnal unit. This center having control information may be realized also by the one termial unit but a center may be provided individually corresponding to the items of information to be controlled and moreover the structure is also provided so that a center may be stablished and the center may be altered to the other terminal unit from the terminal unit having the function of the center. - 90 -
Araki Hiroshi
Endo Mamoru
Fukatsu Takanori
Hashimoto Akira
Kakehi Gen
Fetherstonhaugh & Co.
Fujitsu Limited
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