Patent · US Expired

Device for reliable position monitoring

US6912444B2 · kind B2 · utility

2Cited by

7References

20Claims

0Family size

Assignee

DR. JOHANNES HEIDENHAIN GMBH · DE

Inventors

Martin Pohl · Altenbeken, DE
Alfons Baumgartner · Prien am Chiemsee, DE
Frieder Kohler · Lauter, DE
Berhard Wastlhuber · Siegsdorf, DE
Andreas Balleisen · Tittmoning, DE

Key dates

Filing date	Jan 8, 2003
Grant date	Jun 28, 2005
Priority date	—
Expiry date	Dec 25, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/34482
WIPO fieldControl
WIPO sectorInstruments

Abstract

A position transducer is connected to merely one input circuit. The outputs of the input circuit are connected, transmitted or routed, in part, to a first and to a second counter circuit. For the counting process, the first counter circuit uses the digital signals of the input circuit, while the second counter circuit generates digital signals from the analog signals and uses them for the counting process. It is, thus, possible, in spite of a not fully two-channel processing of the signals of a position transducer, to set up a reliable position monitoring using only one position transducer.

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