Patent · US Expired

Real time control system and method for replacing software in a controlled system

US5421017A · kind A · utility

152Cited by

3References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stephan Scholz · Munich, DE
Wolfgang Becker · Eppstein, DE
Carl-Heinz Doellinger · Germering, DE
Martin Wollensak · Gernsheim, DE

Key dates

Filing date	Jan 14, 1994
Grant date	May 30, 1995
Priority date	—
Expiry date	Jan 14, 2014

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/547
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In order to save development costs, a real time control system should offer the possibility of being upgraded or of growing by replacing software during operation. This ability is achieved in that every message for communication contains a version identifier in addition to containing a designation of the addressed software unit that is unambiguous system-wide. This version identifier indicates the version of the addressed software unit to the operating system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.