Patent · US Expired

Single-signal transmission of safe process information

US7562261B2 · kind B2 · utility

8Cited by

13References

20Claims

0Family size

Assignee

PHOENIX CONTACT GMBH & CO. KG · DE

Inventors

Karsten Meyer-Gräfe · Olpe, DE
Oliver Stallmann · Jülich, DE
Johannes Kalhoff · Blomberg, DE
Steffen Horn · Steinheim, DE
Torsten Gast · Aerzen, DE

Key dates

Filing date	Jan 16, 2004
Grant date	Jul 14, 2009
Priority date	—
Expiry date	Apr 19, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0061
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method and apparatus for the transmission of safe process information including detecting two or more process signals redundantly, identifying an event that is relevant to system safety, and converting said process signals to a single process signal for further system-based processing.

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