Distributed data base control center having a plurality of information tables for facilitating a direct communication among terminal units of a network
US5408608A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1991 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | May 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/966
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A distributed data base system is formed by 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. 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 terminal units storing relevant real data by inputting contents, commands or keywords by accessing the center and reading or extracting 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 the degree of importance of the data. This center, when it is assigned to the one terminal unit forming a distributed data base system, executes the control by gathering necessary control information from each terminal unit. This center having control information may be realized …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.