Patent · US Active

Method and apparatus for the realization of a failsafe time function

US8615674B2 · kind B2 · utility

0Cited by

2References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Paul Eyermann · Herzogenaurach, DE
Michael Labouliere · Pipersville, US
Robert Schwarz · Huntington, US
Markus Walter · Wertheim, DE
Kai Weinert · Leisnig, DE

Key dates

Filing date	Apr 16, 2010
Grant date	Dec 24, 2013
Priority date	—
Expiry date	Jan 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F1/14
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for enabling an oscillating crystal available in a system to be used to generate a software-realized time function, and an apparatus for implementing the method, without requiring additional hardware components, wherein a periodic interrupt signal is generated by the system-internal real-time clock, a table entry with a reference to a routine in an intra-system table is accessed upon receipt of the periodic interrupt signal and a counter is formed by the routine.

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