Distributed data access methods and apparatus for process control systems
US7809679B2 · kind B2 · utility
15Cited by
47References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2003 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Sep 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24561
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods of accessing a database associated with a process control system send a request for information from a client application to an intermediate data server process and determine if the information is stored within a data source associated with the intermediate data server process. The systems and methods also send a request for the information from the intermediate data server process to another process if the information is not stored within the data source and access the database to retrieve the information subsequent to the other process receiving the request for the information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.